:root {
  color-scheme: light;
  --brand-primary: #063f3c;
  --brand-primary-strong: #052f2d;
  --brand-primary-hover: #042724;
  --brand-primary-soft: #e7f0f0;
  --brand-primary-soft-strong: #c5d9d8;
  --brand-on-primary: #ffffff;
  --brand-on-primary-strong: #ffffff;
  --brand-focus: #2f6f6b;
  --primary: var(--brand-primary);
  --teal-900: var(--brand-primary-strong);
  --teal-800: var(--brand-primary-strong);
  --teal-700: var(--brand-primary);
  --teal-500: var(--brand-focus);
  --teal-100: var(--brand-primary-soft);
  --blue: #1957c8;
  --navy: #22315f;
  --coral: #ef6b4a;
  --plum: #8d4b9b;
  --leaf: #3d8b5f;
  --yellow: #fff176;
  --amber: #ffbc00;
  --ink: #1f2828;
  --site-text-color: #1f2828;
  --muted: #687777;
  --paper: #ffffff;
  --soft: #f3faf8;
  --line: #d8ebe8;
  --danger: #c94a3f;
  --shadow: 0 22px 60px rgba(6, 63, 60, 0.14);
  --radius: 8px;
  font-family: "Microsoft JhengHei UI", "Microsoft JhengHei", "Microsoft YaHei", "PingFang SC", "Noto Sans TC", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--soft);
}

/* Task 68: phone invitation -> account creation -> child entitlement. */
.phone-activation-flow {
  display: grid;
  align-content: start;
  gap: 1rem;
}

.phone-activation-flow h3,
.phone-activation-flow p {
  margin-block: 0;
}

.activation-step-label {
  color: #17624a;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.activation-identity-summary {
  display: grid;
  grid-template-columns: minmax(8rem, 0.8fr) minmax(12rem, 1.2fr);
  gap: 0.55rem 1rem;
  align-items: center;
  padding: 1rem;
  border: 1px solid #b8d7ca;
  border-radius: 0.8rem;
  background: #f4faf7;
}

.activation-identity-summary > span,
.activation-member-number > span {
  color: #52635d;
  font-size: 0.88rem;
  font-weight: 700;
}

.activation-identity-summary > strong,
.activation-member-number > strong {
  color: #123e31;
  overflow-wrap: anywhere;
}

.activation-identity-summary .field {
  grid-column: 1 / -1;
  margin: 0;
}

.activation-identity-summary input:disabled {
  color: #173d31;
  -webkit-text-fill-color: #173d31;
  opacity: 1;
  background: #fff;
}

.activation-member-number {
  display: grid;
  gap: 0.25rem;
  min-width: 0;
}

/* Privacy policy version manager */
.privacy-policy-admin-host {
  overflow: visible;
}

.privacy-policy-admin {
  display: grid;
  gap: 18px;
}

.privacy-policy-admin-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.privacy-policy-admin-metrics article,
.privacy-policy-admin-current,
.privacy-policy-admin-form,
.privacy-policy-preview-area,
.privacy-policy-history-section,
.privacy-policy-audit-section {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface, #fff);
  padding: 16px;
}

.privacy-policy-admin-metrics article {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.privacy-policy-admin-metrics span,
.privacy-policy-admin-metrics small,
.privacy-policy-history-item small {
  color: var(--muted);
}

.privacy-policy-admin-metrics strong,
.privacy-policy-admin-metrics small {
  overflow-wrap: anywhere;
}

.privacy-policy-admin-current {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr);
  gap: 18px;
}

.privacy-policy-admin-current dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.privacy-policy-admin-current dl div {
  border-radius: 12px;
  background: var(--soft, #f5f7f6);
  padding: 10px 12px;
}

.privacy-policy-admin-current dt {
  color: var(--muted);
  font-size: .82rem;
}

.privacy-policy-admin-current dd {
  margin: 4px 0 0;
  overflow-wrap: anywhere;
}

.privacy-policy-section-editor {
  margin: 14px 0 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
}

.privacy-policy-section-editor legend {
  padding: 0 8px;
  font-weight: 700;
}

.privacy-policy-admin-preview {
  max-height: 560px;
  overflow: auto;
  border-radius: 14px;
  background: #f8faf9;
  padding: 16px;
}

.privacy-policy-admin-preview section + section {
  margin-top: 18px;
}

.privacy-policy-history-list,
.privacy-policy-audit-list {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.privacy-policy-history-item,
.privacy-policy-audit-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
}

.privacy-policy-history-item summary,
.privacy-policy-audit-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.privacy-policy-history-item summary {
  cursor: pointer;
}

.privacy-policy-history-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 12px 0;
  color: var(--muted);
}

.privacy-policy-audit-item {
  align-items: baseline;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .privacy-policy-admin-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .privacy-policy-admin-current {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .privacy-policy-admin-metrics,
  .privacy-policy-admin-current dl {
    grid-template-columns: 1fr;
  }

  .privacy-policy-history-item summary,
  .privacy-policy-audit-item {
    display: grid;
  }

  .privacy-policy-admin-form,
  .privacy-policy-preview-area,
  .privacy-policy-history-section,
  .privacy-policy-audit-section {
    padding: 12px;
  }
}

.activation-learning-summary {
  display: grid;
  gap: 0.65rem;
  padding: 0.9rem;
  border: 1px solid rgba(23, 98, 74, 0.2);
  border-radius: 0.8rem;
  background: #f4faf7;
}

.activation-learning-summary dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 1rem;
  margin: 0;
}

.activation-learning-summary dl > div { min-width: 0; }
.activation-learning-summary dt { color: #52635d; font-size: 0.78rem; font-weight: 800; }
.activation-learning-summary dd { margin: 0.12rem 0 0; color: #123e31; font-weight: 700; overflow-wrap: anywhere; }
.activation-learning-summary.is-empty { color: #52635d; }

.activation-learning-lock-dialog[open] {
  display: grid;
  gap: 1rem;
  padding: 1.25rem;
}

.phone-activation-flow fieldset {
  min-width: 0;
  margin: 0;
  padding: 1rem;
  border: 1px solid #d5ded9;
  border-radius: 0.8rem;
}

.phone-activation-flow legend {
  padding-inline: 0.35rem;
  color: #173d31;
  font-weight: 800;
}

.phone-activation-flow .field b {
  color: #b42318;
}

.form-error {
  padding: 0.75rem 0.9rem;
  border-inline-start: 4px solid #b42318;
  border-radius: 0.4rem;
  color: #7a271a;
  background: #fff4f2;
  font-weight: 700;
}

.success-note {
  padding: 0.75rem 0.9rem;
  border-inline-start: 4px solid #18835f;
  border-radius: 0.4rem;
  color: #14543f;
  background: #effaf5;
}

.phone-activation-preview-table td,
.phone-activation-preview-table th {
  white-space: nowrap;
}

@media (max-width: 720px) {
  .activation-identity-summary {
    grid-template-columns: 1fr;
  }

  .phone-activation-flow fieldset {
    padding: 0.8rem;
  }

  .phone-activation-flow .row-actions .button {
    width: 100%;
  }

  .activation-learning-summary dl {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-block-size: 100dvh;
  background:
    linear-gradient(180deg, rgba(10, 187, 185, 0.08), transparent 24rem),
    var(--soft);
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a {
  touch-action: manipulation;
}

a {
  color: inherit;
  text-decoration: none;
}

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

.skip-link,
.visually-hidden,
caption {
  position: absolute;
  clip-path: inset(50%);
  overflow: hidden;
  inline-size: 1px;
  block-size: 1px;
  white-space: nowrap;
}

.skip-link:focus {
  clip-path: none;
  z-index: 30;
  inset-block-start: 1rem;
  inset-inline-start: 1rem;
  inline-size: auto;
  block-size: auto;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  background: var(--paper);
}

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.8rem clamp(1rem, 4vw, 3rem);
  border-block-end: 1px solid rgba(0, 135, 129, 0.16);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
}

.brand,
.nav,
.head-actions,
.tabs,
.table-tabs,
.inline-form,
.row-actions,
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}

.brand {
  gap: 0.8rem;
}

.brand-logo {
  inline-size: 3rem;
  block-size: 3rem;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 8px 18px rgba(0, 135, 129, 0.18);
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  font-size: 1.05rem;
}

.brand span,
.hint,
#member-line {
  color: var(--muted);
}

main {
  --page-inline-gutter: clamp(1rem, 4vw, 3rem);
  padding: var(--page-inline-gutter);
}

.auth-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(22rem, 0.55fr);
  gap: 1.25rem;
  align-items: stretch;
  max-inline-size: 78rem;
  margin-inline: auto;
}

.public-hero-layout,
.login-page {
  max-inline-size: 78rem;
  margin-inline: auto;
}

.login-page {
  min-block-size: calc(100dvh - 10rem);
  display: grid;
  align-content: center;
  gap: 1rem;
}

.login-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(20rem, 0.72fr);
  gap: 1.25rem;
  align-items: stretch;
}

.login-page-copy {
  min-block-size: 30rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border-radius: var(--radius);
  background-color: #f47a20;
  background-image:
    linear-gradient(90deg, rgba(9, 43, 40, 0.95), rgba(9, 43, 40, 0.68)),
    url("https://3958219.s148i.faieduusr.com/4/101/AJQBCAAQBBgAIOq738UGKNGCy9kHMM4aOIQH.png");
  background-position: center, center;
  background-size: 100% 100%, contain;
  background-repeat: no-repeat, no-repeat;
  color: #ffffff;
  box-shadow: 0 28px 70px rgba(9, 43, 40, 0.2);
}

.login-page-copy h1 {
  max-inline-size: 12ch;
  margin-block-end: 0.8rem;
  color: #ffffff;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.08;
  text-wrap: balance;
}

.login-page-copy > p:not(.eyebrow) {
  max-inline-size: 38rem;
  color: rgba(255, 255, 255, 0.86);
  text-wrap: pretty;
}

.login-note {
  display: grid;
  gap: 0.25rem;
  max-inline-size: 32rem;
  margin-block-start: 1.25rem;
  padding-block-start: 1rem;
  border-block-start: 1px solid rgba(255, 255, 255, 0.28);
}

.login-note span {
  color: rgba(255, 255, 255, 0.72);
}

.login-page .auth-card {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.25rem, 3vw, 2rem);
}

.login-page .tabs {
  margin-block-end: 1.5rem;
}

.login-page .field input {
  min-block-size: 3.25rem;
}

.oauth-login {
  display: grid;
  gap: 0.85rem;
  margin-block-start: 1.25rem;
}

.oauth-divider {
  display: grid;
  grid-template-columns: minmax(1rem, 1fr) auto minmax(1rem, 1fr);
  gap: 0.75rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.82rem;
}

.oauth-divider::before,
.oauth-divider::after {
  content: "";
  block-size: 1px;
  background: var(--line);
}

.oauth-login-buttons {
  display: grid;
  gap: 0.65rem;
}

.oauth-login-button {
  min-block-size: 52px;
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr) auto;
  gap: 0.7rem;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.65rem 0.8rem;
  background: #ffffff;
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
}

.oauth-login-button > span {
  inline-size: 2rem;
  block-size: 2rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #f5f7fa;
  color: #315fd6;
  font-weight: 850;
}

.oauth-login-button.wechat > span {
  background: #e8f8ee;
  color: #168743;
}

.oauth-login-button small {
  color: var(--muted);
}

.oauth-login-button:not(.is-disabled):hover,
.oauth-login-button:not(.is-disabled):focus-visible {
  border-color: var(--teal-500);
  background: var(--teal-100);
}

.oauth-login-button.is-disabled {
  opacity: 0.58;
  cursor: not-allowed;
}

#oauth-login-status {
  min-block-size: 1.25rem;
  margin: 0;
  text-align: center;
}

.auth-form-links {
  display: flex;
  justify-content: flex-end;
  margin-block-start: -0.35rem;
}

.auth-form-links .text-button {
  min-block-size: 2rem;
  font-size: 0.9rem;
}

.privacy-consent-field {
  display: grid;
  gap: 0.35rem;
  border-inline-start: 3px solid var(--teal-500);
  padding: 0.7rem 0.8rem;
  background: #f7fbfa;
}

.privacy-consent-field:focus-visible {
  outline: 3px solid rgba(18, 137, 126, 0.28);
  outline-offset: 2px;
}

.privacy-consent-field .check-row {
  align-items: flex-start;
  margin: 0;
}

.privacy-consent-field .check-row input {
  flex: 0 0 auto;
  inline-size: 1.2rem;
  min-block-size: 1.2rem;
  margin-block-start: 0.2rem;
}

.privacy-consent-field .text-button {
  min-block-size: auto;
  padding: 0;
  vertical-align: baseline;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.field-error {
  margin: 0;
  color: var(--danger);
  font-size: 0.88rem;
  font-weight: 750;
}

.auth-status-panel {
  display: grid;
  gap: 0.45rem;
  margin-block-start: 1rem;
  border-inline-start: 3px solid var(--yellow);
  padding: 0.75rem 0.85rem;
  background: #fffbea;
}

.auth-status-panel p {
  margin: 0;
}

.oauth-consent-form {
  margin-block-start: 0.75rem;
}

body:has(#privacy-policy-dialog[open]) {
  overflow: hidden;
}

.privacy-policy-dialog {
  inline-size: min(52rem, calc(100vw - 2rem));
  overflow: hidden;
}

.privacy-policy-dialog > .privacy-policy-dialog-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  max-block-size: min(46rem, calc(100dvh - 2rem));
  padding: 0;
  overflow: hidden;
}

.privacy-policy-dialog-header,
.privacy-policy-dialog-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  background: #ffffff;
}

.privacy-policy-dialog-header {
  border-block-end: 1px solid var(--line);
}

.privacy-policy-dialog-header h2,
.privacy-policy-dialog-header p {
  margin: 0;
}

.privacy-policy-dialog-footer {
  border-block-start: 1px solid var(--line);
}

.privacy-policy-dialog-header .icon-button {
  inline-size: 2.75rem;
  block-size: 2.75rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #ffffff;
  color: var(--ink);
  cursor: pointer;
}

.privacy-policy-loading,
.privacy-policy-sections {
  min-block-size: 12rem;
  padding: 1rem 1.1rem;
  overflow-x: hidden;
  overflow-y: auto;
  overflow-wrap: anywhere;
  overscroll-behavior: contain;
}

.privacy-policy-sections {
  display: grid;
  gap: 1.15rem;
}

.privacy-policy-sections section {
  display: grid;
  gap: 0.45rem;
}

.privacy-policy-sections h3,
.privacy-policy-sections p {
  margin: 0;
}

.privacy-policy-sections h3 {
  color: var(--teal-900);
  font-size: 1rem;
}

.privacy-policy-sections p {
  color: var(--ink);
  line-height: 1.72;
}

.auth-action-dialog {
  inline-size: min(30rem, calc(100vw - 2rem));
}

.auth-action-dialog > form {
  padding: 1.1rem;
}

@media (max-width: 700px) {
  .privacy-policy-dialog {
    inline-size: 100dvw;
    max-inline-size: 100dvw;
    max-block-size: 100dvh;
    block-size: 100dvh;
    border: 0;
    border-radius: 0;
    margin: 0;
  }

  .privacy-policy-dialog > .privacy-policy-dialog-panel {
    block-size: 100dvh;
    max-block-size: 100dvh;
  }

  .privacy-policy-dialog-header {
    padding-block-start: max(0.85rem, env(safe-area-inset-top));
  }

  .privacy-policy-dialog-footer {
    align-items: stretch;
    flex-direction: column;
    padding-block-end: max(0.85rem, env(safe-area-inset-bottom));
  }

  .privacy-policy-dialog-footer .button {
    inline-size: 100%;
  }
}

.public-section {
  max-inline-size: 78rem;
  margin: 1.25rem auto 0;
}

.public-practice-entries {
  display: grid;
  gap: 1rem;
  padding: 1.1rem;
  border: 1px solid rgba(34, 49, 95, 0.12);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 241, 166, 0.34), rgba(223, 248, 245, 0.72)),
    #ffffff;
  box-shadow: var(--shadow);
}

.public-practice-entries .section-title {
  margin-block-end: 0;
}

.public-voice-grid {
  margin-block-start: 0.15rem;
}

.section-title {
  max-inline-size: 46rem;
  margin-block-end: 1rem;
}

.section-title h2 {
  font-size: clamp(1.45rem, 3vw, 2.35rem);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.feature-card {
  min-block-size: 14rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.feature-card p {
  color: var(--muted);
}

.feature-icon {
  display: grid;
  place-items: center;
  inline-size: 2.8rem;
  aspect-ratio: 1;
  border-radius: var(--radius);
  background: var(--teal-100);
  color: var(--teal-900);
  font-weight: 900;
}

.feature-card .text-button {
  margin-block-start: auto;
  justify-content: flex-start;
}

.site-map-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.site-map-card {
  display: grid;
  gap: 0.35rem;
  min-block-size: 7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.site-map-card:hover,
.site-map-card:focus-visible {
  border-color: var(--teal-500);
  background: #f8fffd;
}

.site-map-card strong {
  color: var(--teal-900);
  font-size: 1.05rem;
}

.site-map-card span {
  color: var(--muted);
  line-height: 1.5;
}

.info-band {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  max-inline-size: 78rem;
  margin: 1rem auto 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.info-band h2 {
  margin-block: 0.15rem;
}

.info-band p:last-child {
  max-inline-size: 68ch;
  color: var(--muted);
}

.intro-panel,
.auth-card,
.panel,
.metrics article,
.server-warning {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.intro-panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-block-size: 34rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(1.5rem, 5vw, 4rem);
  background-color: #f47a20;
  background-image:
    linear-gradient(90deg, rgba(6, 63, 60, 0.96) 0%, rgba(6, 63, 60, 0.82) 46%, rgba(6, 63, 60, 0.22) 100%),
    url("https://3958219.s148i.faieduusr.com/4/101/AJQBCAAQBBgAIOq738UGKNGCy9kHMM4aOIQH.png");
  background-position: center, center;
  background-size: 100% 100%, contain;
  background-repeat: no-repeat, no-repeat;
  color: #ffffff;
}

.intro-panel::after {
  content: "";
  position: absolute;
  inset: auto 2rem 2rem auto;
  inline-size: 12rem;
  block-size: 12rem;
  border: 1px solid rgba(255, 241, 118, 0.5);
  border-radius: 50%;
  z-index: -1;
}

.intro-panel h1 {
  max-inline-size: 16ch;
  margin-block-end: 1rem;
  font-size: clamp(2.25rem, 4.6vw, 4.25rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.intro-panel p {
  max-inline-size: 44rem;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.08rem;
}

.hero-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
  margin-block-start: 1.4rem;
  max-inline-size: 42rem;
}

.hero-strip span {
  min-block-size: 3.2rem;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-weight: 800;
}

.auth-card,
.panel {
  padding: 1.1rem;
}

.auth-card {
  align-self: start;
  border-block-start: 6px solid var(--teal-500);
}

.auth-form,
.view.is-active {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr);
  min-inline-size: 0;
}

.view {
  display: none;
}

.view.is-active > * {
  min-inline-size: 0;
}

.page-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  max-inline-size: 78rem;
  margin: 0 auto 1.25rem;
}

#app-view {
  max-inline-size: 78rem;
  margin-inline: auto;
}

h1,
h2,
h3,
p {
  margin-block-start: 0;
}

h1 {
  margin-block-end: 0.35rem;
}

h2 {
  margin-block-end: 0.75rem;
  font-size: 1.15rem;
}

p {
  line-height: 1.6;
}

.eyebrow {
  margin-block-end: 0.45rem;
  color: var(--yellow);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.page-head .eyebrow,
.auth-card .eyebrow,
.panel .eyebrow {
  color: var(--teal-700);
}

.button,
.tab,
.danger,
.text-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-block-size: 2.75rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.65rem 0.95rem;
  font-weight: 800;
  cursor: pointer;
}

.button {
  background: var(--teal-700);
  color: #ffffff;
}

.button:hover {
  background: var(--teal-900);
}

button:disabled,
.button:disabled,
.danger:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.button.ghost,
.tab {
  border-color: var(--line);
  background: #ffffff;
  color: var(--teal-900);
}

.intro-panel .button.ghost {
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

.button.whatsapp {
  background: #20b85a;
}

.button.whatsapp:hover {
  background: #17934a;
}

.tab.is-active {
  border-color: var(--teal-500);
  color: var(--teal-900);
  background: var(--teal-100);
  box-shadow: inset 0 -3px 0 var(--yellow);
}

.danger {
  border-color: #f0c8c5;
  background: #fff5f4;
  color: var(--danger);
}

.text-button {
  border: 0;
  background: transparent;
  color: var(--blue);
  padding-inline: 0.2rem;
}

.full {
  inline-size: 100%;
}

.table-search {
  inline-size: min(18rem, 100%);
}

.field {
  display: grid;
  gap: 0.35rem;
}

fieldset.field {
  min-inline-size: 0;
  margin: 0;
  border: 0;
  padding: 0;
}

fieldset.field legend {
  margin-block-end: 0.35rem;
  padding: 0;
  font-weight: 800;
}

.registration-role-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.registration-role-options label {
  min-block-size: 48px;
  display: flex;
  gap: 0.55rem;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  background: #ffffff;
  cursor: pointer;
}

.registration-role-options label:has(input:checked) {
  border-color: var(--teal-500);
  background: var(--teal-100);
  color: var(--teal-900);
  font-weight: 800;
}

.registration-role-options input {
  inline-size: 1.1rem;
  block-size: 1.1rem;
  accent-color: var(--teal-700);
}

.course-multiselect {
  position: relative;
}

.course-multiselect summary {
  min-block-size: 2.8rem;
  display: flex;
  align-items: center;
  border: 1px solid #b7d9d3;
  border-radius: var(--radius);
  padding: 0.7rem 2.25rem 0.7rem 0.78rem;
  background: #fbfffe;
  cursor: pointer;
  font-weight: 700;
  list-style-position: inside;
}

.course-multiselect-menu {
  position: absolute;
  z-index: 8;
  inset-block-start: calc(100% + 0.35rem);
  inset-inline: 0;
  display: grid;
  gap: 0.25rem;
  max-block-size: 16rem;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.5rem;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.course-multiselect-menu label {
  display: flex;
  gap: 0.65rem;
  align-items: center;
  min-block-size: 2.75rem;
  padding: 0.45rem 0.55rem;
  border-radius: calc(var(--radius) - 2px);
  cursor: pointer;
}

.course-multiselect-menu label:hover {
  background: var(--teal-100);
}

.course-multiselect-menu input {
  flex: 0 0 auto;
  inline-size: 1.2rem;
  min-block-size: 1.2rem;
  accent-color: var(--teal-700);
}

label {
  font-weight: 800;
}

input,
select,
textarea {
  inline-size: 100%;
  min-block-size: 2.8rem;
  border: 1px solid #b7d9d3;
  border-radius: var(--radius);
  padding: 0.7rem 0.78rem;
  background: #fbfffe;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.inline-form {
  align-items: end;
}

.inline-form input,
.inline-form select {
  min-inline-size: min(18rem, 100%);
  flex: 1;
}

.grid,
.admin-grid,
.form-grid,
.metrics {
  display: grid;
  gap: 1rem;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.admin-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel-wide {
  grid-column: 1 / -1;
}

.form-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metrics {
  grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
}

.metrics article {
  padding: 1rem;
  border-block-start: 4px solid var(--teal-500);
}

.metrics span {
  display: block;
  color: var(--muted);
}

.metrics strong {
  display: block;
  color: var(--teal-900);
  font-size: 2rem;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 0.85rem;
}

.module-card {
  display: grid;
  gap: 0.35rem;
  min-block-size: 6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
  background: #fbfffe;
  color: inherit;
  text-align: start;
  cursor: pointer;
}

.module-card:hover,
.module-card:focus-visible {
  border-color: var(--teal-500);
  background: var(--teal-100);
}

.module-card strong {
  color: var(--teal-900);
}

.module-card span {
  color: var(--muted);
  line-height: 1.45;
}

.module-page {
  display: grid;
  gap: 1rem;
}

.module-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.module-head h2 {
  margin-block: 0.15rem;
}

.module-entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  gap: 0.85rem;
}

.module-entry-grid.compact {
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
}

.module-entry-card {
  display: grid;
  gap: 0.45rem;
  align-content: start;
  min-block-size: 7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
  background: #ffffff;
  color: inherit;
  text-align: start;
  cursor: pointer;
  box-shadow: 0 12px 30px rgba(6, 63, 60, 0.08);
}

.module-entry-card:hover,
.module-entry-card:focus-visible,
.module-entry-card.is-active {
  border-color: var(--teal-500);
  background: var(--teal-100);
}

.module-entry-card strong {
  color: var(--teal-900);
  line-height: 1.35;
}

.module-entry-card span {
  color: var(--muted);
  line-height: 1.45;
  font-size: 0.92rem;
}

.module-entry-card.is-muted {
  background: #fbfffe;
}

.module-dev-panel {
  display: grid;
  gap: 0.75rem;
}

.learning-home {
  gap: 1rem;
}

/* Member home: keep the banner and every section below it on one aligned
   content column while reserving a tight, sticky ad rail on wide screens. */
.home-content-with-ad {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
  align-items: start;
  min-inline-size: 0;
}

.home-content-main {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.home-content-main > .member-home-banner-section {
  inline-size: 100%;
  margin-block-start: 0;
}

.home-ad-right {
  position: sticky;
  inset-block-start: 0;
  top: 0;
  inline-size: 100%;
  margin-block-start: 0;
  margin-top: 0;
}

.home-ad-placeholder {
  display: grid;
  place-items: center;
  min-block-size: 7rem;
  padding: 0.75rem;
  border: 1px dashed color-mix(in srgb, var(--brand-primary, #0f5f55) 28%, var(--line));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--brand-primary-soft, #edf6f2) 72%, #ffffff);
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
}

@media (max-width: 860px) {
  .home-content-with-ad {
    grid-template-columns: minmax(0, 1fr);
  }

  .home-ad-right {
    position: static;
    max-inline-size: none;
  }
}

.platform-hero,
.learning-section,
.practice-structure,
.study-dashboard {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.platform-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(16rem, 0.7fr);
  gap: 1rem;
  align-items: end;
  padding: clamp(1rem, 3vw, 1.7rem);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 241, 166, 0.82), rgba(255, 255, 255, 0.9) 38%, rgba(216, 255, 242, 0.86)),
    var(--paper);
  position: relative;
}

.platform-hero::after {
  content: "";
  position: absolute;
  inset-block: auto -3.8rem;
  inset-inline-end: -2.5rem;
  inline-size: 17rem;
  aspect-ratio: 1.25;
  border: 1px solid rgba(34, 49, 95, 0.12);
  border-radius: 24px 24px 8px 8px;
  background:
    linear-gradient(90deg, rgba(34, 49, 95, 0.16) 0 8%, transparent 8%),
    linear-gradient(180deg, rgba(239, 107, 74, 0.26), rgba(255, 255, 255, 0.74));
  transform: rotate(-7deg);
  pointer-events: none;
}

.platform-hero-copy {
  position: relative;
  z-index: 1;
}

.platform-hero h2 {
  margin-block: 0.15rem;
  color: var(--teal-900);
}

.platform-hero p {
  margin-block: 0.3rem 0;
  color: var(--muted);
  line-height: 1.6;
}

.hero-quick-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-block-start: 1rem;
}

.hero-quick-grid button {
  min-block-size: 2.35rem;
  border: 1px solid rgba(34, 49, 95, 0.14);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  background: rgba(255, 255, 255, 0.78);
  color: var(--navy);
  font-weight: 800;
  cursor: pointer;
}

.home-search {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
}

.home-search input {
  min-inline-size: 0;
  flex: 1 1 12rem;
}

.learning-section {
  display: grid;
  gap: 0.8rem;
  padding: 1rem;
}

.learning-section h3 {
  margin: 0;
  color: var(--teal-900);
}

.home-course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  gap: 0.85rem;
}

.study-dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.85rem;
}

.textbook-groups {
  display: grid;
  gap: 1.25rem;
  min-inline-size: 0;
}

.textbook-group {
  display: grid;
  gap: 0.7rem;
  min-inline-size: 0;
}

.textbook-group-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.textbook-group-heading h3,
.textbook-group-heading h4 {
  margin: 0;
  color: var(--teal-900);
  font-size: 1rem;
}

.textbook-group-heading span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.textbook-group-empty {
  display: grid;
  gap: 0.25rem;
  min-block-size: 6rem;
  align-content: center;
  border: 1px dashed rgba(6, 63, 60, 0.22);
  border-radius: var(--radius);
  padding: 1rem;
  background: #f7fbfa;
  color: var(--muted);
}

.textbook-group-empty strong {
  color: var(--teal-900);
}

.course-cover-card {
  display: grid;
  grid-template-rows: auto 1fr;
  min-block-size: 15rem;
  overflow: hidden;
  border: 1px solid rgba(34, 49, 95, 0.12);
  border-radius: var(--radius);
  background: #ffffff;
  color: inherit;
  text-align: start;
  cursor: pointer;
  box-shadow: 0 18px 40px rgba(34, 49, 95, 0.12);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.course-cover-card:hover,
.course-cover-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--coral);
  box-shadow: 0 22px 50px rgba(34, 49, 95, 0.18);
}

.course-cover-media {
  display: block;
  aspect-ratio: 12 / 7;
  background: #f6fbfa;
}

.course-cover-media img {
  display: block;
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
}

.course-cover-placeholder {
  display: grid;
  inline-size: 100%;
  block-size: 100%;
  place-items: center;
  color: #174e49;
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, #e3f4ef, #fff0df);
}

.course-cover-copy {
  display: grid;
  gap: 0.3rem;
  padding: 0.85rem;
}

.course-cover-copy strong {
  color: var(--teal-900);
  font-size: 1.05rem;
}

.course-cover-copy small {
  color: var(--muted);
}

.course-cover-copy em {
  color: var(--coral);
  font-style: normal;
  font-weight: 800;
}

.voice-topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.85rem;
}

.voice-topic-card {
  min-block-size: 8rem;
  display: grid;
  gap: 0.45rem;
  align-content: center;
  border: 1px solid rgba(34, 49, 95, 0.12);
  border-radius: var(--radius);
  padding: 1rem;
  background:
    linear-gradient(135deg, rgba(25, 87, 200, 0.08), rgba(255, 255, 255, 0.96)),
    #fff;
  color: inherit;
  text-align: start;
  cursor: pointer;
}

.voice-topic-card:nth-child(2) {
  background: linear-gradient(135deg, rgba(141, 75, 155, 0.11), rgba(255, 255, 255, 0.96)), #fff;
}

.voice-topic-card:nth-child(3) {
  background: linear-gradient(135deg, rgba(239, 107, 74, 0.13), rgba(255, 255, 255, 0.96)), #fff;
}

.voice-topic-card:nth-child(4) {
  background: linear-gradient(135deg, rgba(61, 139, 95, 0.13), rgba(255, 255, 255, 0.96)), #fff;
}

.voice-topic-card strong {
  color: var(--navy);
  font-size: 1.15rem;
}

.voice-topic-card span {
  color: var(--muted);
  line-height: 1.45;
}

.home-list {
  display: grid;
  gap: 0.7rem;
}

.admin-home-section {
  border-color: color-mix(in srgb, var(--teal-500), var(--line) 55%);
}

.prep-workbench-section {
  border: 1px solid rgba(239, 107, 74, 0.2);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(239, 107, 74, 0.08), rgba(255, 255, 255, 0.96)),
    #ffffff;
}

.practice-structure {
  display: grid;
  gap: 0.75rem;
  padding: 0.9rem;
  overflow: hidden;
}

.practice-entry-banner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  border: 1px solid rgba(239, 107, 74, 0.22);
  border-radius: var(--radius);
  padding: 1rem;
  background:
    linear-gradient(135deg, rgba(255, 241, 166, 0.62), rgba(255, 255, 255, 0.92)),
    #fff;
  box-shadow: 0 16px 36px rgba(34, 49, 95, 0.08);
}

.practice-entry-banner h3 {
  margin-block: 0.35rem 0.2rem;
  color: var(--navy);
}

.practice-entry-banner p {
  margin: 0;
  color: var(--muted);
}

.fallback-directory {
  border-color: rgba(239, 107, 74, 0.2);
  background:
    linear-gradient(180deg, rgba(255, 246, 214, 0.66), rgba(255, 255, 255, 0.96)),
    var(--paper);
}

.fallback-level {
  display: grid;
  gap: 0.45rem;
}

.fallback-level > strong {
  color: var(--navy);
}

.lesson-row {
  align-items: stretch;
}

.practice-breadcrumb,
.practice-node-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  overflow-x: auto;
  padding-block-end: 0.1rem;
  scrollbar-width: thin;
}

.practice-breadcrumb {
  color: var(--muted);
  white-space: nowrap;
}

.practice-breadcrumb .is-active {
  color: var(--teal-900);
  font-weight: 800;
}

.practice-node-chip {
  flex: 0 0 auto;
  min-block-size: 2.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.55rem 0.85rem;
  background: #fbfffe;
  color: var(--teal-900);
  cursor: pointer;
}

.practice-node-chip:hover,
.practice-node-chip:focus-visible,
.practice-node-chip.is-active {
  border-color: var(--teal-500);
  background: var(--teal-100);
}

.practice-catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.85rem;
}

.practice-student-selector {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(14rem, 22rem);
  gap: 0.8rem 1.25rem;
  align-items: end;
  border-inline-start: 4px solid var(--teal-500);
}

.practice-student-selector.is-error {
  border-color: #b42318;
  border-inline-start-color: #b42318;
  background: #fff7f6;
}

.practice-student-selector .field-error {
  grid-column: 1 / -1;
  margin: 0;
  color: #b42318;
  font-weight: 800;
}

.practice-student-selector > .hint:last-child,
.practice-student-selector > .empty-state,
.practice-student-selector > .loading-state {
  grid-column: 1 / -1;
}

.catalog-card {
  display: grid;
  gap: 0.75rem;
  align-content: space-between;
  min-block-size: 10rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
  background: #fbfffe;
}

.catalog-card.is-locked {
  border-color: #f0c9c4;
  background: #fffafa;
}

.catalog-card strong {
  color: var(--teal-900);
}

.catalog-card p {
  margin-block: 0.35rem 0;
  color: var(--muted);
}

.catalog-card .button.full {
  min-block-size: 48px;
}

.practice-focus-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
}

.practice-focus-cascade {
  display: grid;
  gap: 0.8rem;
}

.practice-focus-cascade > .field {
  margin: 0;
}

.practice-catalog-compact {
  align-content: start;
  min-block-size: 0;
}

.practice-focus-group {
  display: grid;
  gap: 0.55rem;
}

.practice-focus-group h4 {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.practice-focus-button {
  min-block-size: 58px;
  padding: 0.65rem 0.45rem;
  display: grid;
  place-content: center;
  gap: 0.12rem;
  line-height: 1.2;
}

.practice-focus-button small {
  font-size: 0.72rem;
  font-weight: 700;
  opacity: 0.72;
}

.catalog-card [aria-disabled="true"] {
  border-color: #f0c9c4;
  background: #fff4f2;
  color: var(--danger);
}

.practice-catalog-compact [aria-disabled="true"] {
  border-color: var(--teal-900);
  background: var(--teal-900);
  color: #fff;
}

.catalog-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  color: var(--muted);
}

.practice-player {
  max-width: 720px;
  margin-inline: auto;
  display: grid;
  gap: 1rem;
}

.study-dashboard {
  padding: 1rem;
}

.study-card {
  display: grid;
  gap: 0.45rem;
  min-block-size: 8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
  background: #fbfffe;
  color: inherit;
  text-align: start;
  cursor: pointer;
}

.study-card:hover,
.study-card:focus-visible {
  border-color: var(--teal-500);
  background: var(--teal-100);
}

.study-card span {
  color: var(--teal-700);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.study-card strong {
  color: var(--teal-900);
  font-size: 1.05rem;
}

.study-card em {
  color: var(--muted);
  font-style: normal;
  line-height: 1.45;
}

.practice-player-top,
.practice-player-actions {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.practice-progress {
  block-size: 0.55rem;
  border-radius: 999px;
  background: #e7f0ee;
  overflow: hidden;
}

.practice-progress span {
  display: block;
  block-size: 100%;
  border-radius: inherit;
  background: var(--teal-500);
}

.practice-question-card {
  display: grid;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  background: #fff;
}

.practice-question-text {
  color: var(--teal-900);
  font-size: 1.15rem;
  line-height: 1.55;
}

.practice-option-list {
  display: grid;
  gap: 0.75rem;
}

.practice-option {
  min-block-size: 52px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: center;
  text-align: start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.8rem 0.9rem;
  background: #fbfffe;
  color: var(--ink);
  cursor: pointer;
}

.practice-option:hover,
.practice-option.is-selected {
  border-color: var(--teal-500);
  background: var(--teal-100);
}

.practice-option strong {
  min-inline-size: 2rem;
  color: var(--teal-900);
}

.practice-input-field input {
  min-block-size: 52px;
  font-size: 1rem;
}

.fill-answer-grid {
  min-inline-size: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: 0.75rem;
  border: 0;
  margin: 0;
  padding: 0;
}

.fill-answer-grid legend {
  grid-column: 1 / -1;
  margin-block-end: 0.25rem;
  font-weight: 800;
}

.fill-answer-grid input {
  inline-size: 100%;
  min-inline-size: 0;
  min-block-size: 48px;
  font-size: 1rem;
}

.fill-answer-grid.is-paired-pinyin {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.fill-answer-grid.is-paired-pinyin legend {
  grid-column: 1 / -1;
}

.fill-answer-field.is-multiple {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr);
  align-items: center;
  gap: 0.5rem;
}

.fill-answer-number {
  inline-size: 1.75rem;
  block-size: 1.75rem;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: #dff1ec;
  color: #124f46;
  font-size: 0.82rem;
  font-weight: 850;
}

.pinyin-answer-wrap {
  min-inline-size: 0;
  display: grid;
  gap: 1rem;
}

.pinyin-keyboard {
  min-inline-size: 0;
  display: grid;
  gap: 0.8rem;
  border: 1px solid #cbded9;
  border-radius: var(--radius);
  padding: 0.85rem;
  background: #f5faf8;
}

.pinyin-keyboard-mobile-head,
.pinyin-keyboard-spacer {
  display: none;
}

.pinyin-keyboard-head-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.pinyin-keyboard-section,
.pinyin-tone-keyboard {
  display: grid;
  gap: 0.55rem;
}

.pinyin-tone-keyboard > summary {
  color: var(--teal-900);
  cursor: pointer;
  font-weight: 800;
}

.pinyin-key-grid,
.pinyin-keyboard-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(3rem, 1fr));
  gap: 0.4rem;
}

.pinyin-key-grid-mobile,
.pinyin-mobile-only,
.pinyin-keyboard-actions-mobile {
  display: none;
}

.pinyin-key {
  min-inline-size: 0;
  min-block-size: 48px;
  border: 1px solid #b9d2cc;
  border-radius: 0.65rem;
  padding: 0.45rem;
  background: #fff;
  color: #123e37;
  font-size: 1rem;
  font-weight: 750;
  cursor: pointer;
}

.pinyin-key:hover,
.pinyin-key:focus-visible {
  border-color: var(--teal-500);
  background: var(--teal-100);
}

.pinyin-key.is-wide {
  grid-column: span 2;
}

.pinyin-keyboard .hint {
  margin: 0;
}

[data-pinyin-input].is-pinyin-target {
  border-color: var(--teal-500);
  box-shadow: 0 0 0 3px rgba(20, 132, 117, 0.14);
}

.blank-result-list {
  display: grid;
  gap: 0.35rem;
  margin-block: 0.5rem;
}

.blank-result-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.6rem;
  margin: 0;
  overflow-wrap: anywhere;
}

.generation-answer-editor {
  min-inline-size: 14rem;
  display: grid;
  gap: 0.45rem;
}

.generation-answer-editor textarea,
[data-generation-title] {
  inline-size: 100%;
  min-inline-size: 12rem;
  box-sizing: border-box;
}

.generation-answer-editor label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.5rem;
}

.practice-result-list {
  display: grid;
  gap: 0.75rem;
}

.practice-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.practice-result-actions .button {
  min-block-size: 48px;
}

.practice-result-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
  background: #fff;
}

.practice-result-item.is-correct {
  border-color: #9ad4c8;
  background: #f4fffc;
}

.practice-result-item.is-wrong {
  border-color: #f0b6a6;
  background: #fff8f5;
}

.practice-result-title {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.practice-record-detail {
  display: grid;
  gap: 1rem;
  margin-block-start: 1rem;
  padding-block-start: 1rem;
  border-block-start: 1px solid var(--line);
}

.loading-box,
.loading-state {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
  background: #ffffff;
  color: var(--muted);
}

.bottom-nav {
  display: none;
}

.question-box,
.result,
.list-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfffe;
  padding: 0.9rem;
}

.sub-list {
  display: grid;
  gap: 0.55rem;
  margin-block-start: 0.75rem;
  padding-block-start: 0.75rem;
  border-block-start: 1px solid var(--line);
}

.sub-list-row {
  display: grid;
  gap: 0.2rem;
  border-radius: var(--radius);
  background: #ffffff;
  padding: 0.65rem;
}

.sub-list-row small {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.server-warning {
  max-inline-size: 46rem;
  margin: 2rem auto;
  padding: 1rem;
  border-color: #f0c8c5;
  background: #fff8f7;
}

.server-warning strong {
  color: var(--danger);
}

.panel-title-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
  margin-block-end: 0.85rem;
}

.panel-title-row h2 {
  margin-block-end: 0;
}

.import-preview {
  display: grid;
  gap: 0.8rem;
  margin-block-start: 0.9rem;
}

.import-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.8rem;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.8rem;
  background: #f8fffd;
}

.import-summary.ok {
  border-color: #9ad7c9;
  background: #effcf8;
  color: var(--teal-900);
}

.match-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 0.75rem;
}

.match-card {
  display: grid;
  gap: 0.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem;
  background: #ffffff;
}

.match-card p {
  margin: 0;
  color: var(--muted);
}

.match-card.missing {
  border-color: #f2d2cd;
  background: #fff8f7;
}

.billing-message {
  inline-size: 100%;
  min-block-size: 22rem;
  margin-block-start: 0.85rem;
  white-space: pre-wrap;
}

.billing-actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-block-start: 0.75rem;
}

.billing-host {
  overflow: visible;
  border: 0;
  border-radius: 0;
}

.billing-workspace,
.billing-page {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.billing-tabs {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding-block-end: 0.25rem;
  scrollbar-width: thin;
}

.billing-tabs .tab {
  flex: 0 0 auto;
  min-block-size: 44px;
  white-space: nowrap;
}

.billing-course-charge {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.billing-course-charge-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface, #fff);
}

.billing-course-charge-heading :is(h3, p) { margin-block: 0; }

.billing-course-charge-heading > div > p:last-child {
  max-inline-size: 48rem;
  margin-block-start: 0.45rem;
  color: var(--muted);
  line-height: 1.6;
}

.billing-course-charge-heading ol {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: billing-step;
}

.billing-course-charge-heading li {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--muted);
  white-space: nowrap;
  counter-increment: billing-step;
}

.billing-course-charge-heading li::before {
  content: counter(billing-step);
  display: grid;
  inline-size: 1.75rem;
  block-size: 1.75rem;
  place-items: center;
  border-radius: 50%;
  background: var(--brand-primary-soft, #e7f3ef);
  color: var(--brand-primary-strong, var(--teal-900));
  font-weight: 800;
}

.billing-course-charge-heading li:not(:last-child)::after {
  content: "›";
  margin-inline-start: 0.25rem;
}

.billing-subtabs {
  padding: 0.35rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2, #f5f8f7);
}

.billing-course-charge-panel { min-inline-size: 0; }

.member-commerce-products {
  display: grid;
  gap: 1rem;
  margin-block-start: 1.25rem;
  padding-block-start: 1.25rem;
  border-block-start: 1px solid var(--line);
}

.member-commerce-products > .panel-title-row :is(h3, p) {
  margin-block: 0;
}

.member-commerce-products > .panel-title-row p {
  margin-block-start: 0.35rem;
}

.billing-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.billing-metrics article {
  display: grid;
  gap: 0.35rem;
  min-block-size: 6rem;
  padding: 0.9rem;
  border-block-start: 3px solid var(--teal-700);
  background: #f5fbf9;
}

.billing-metrics span,
.billing-record span,
.billing-record p,
.billing-aging span,
.billing-aging em {
  color: var(--muted);
}

.billing-metrics strong,
.billing-record strong {
  font-variant-numeric: tabular-nums;
}

.billing-metrics strong {
  font-size: 1.35rem;
}

.billing-notice {
  margin: 0;
  padding: 0.8rem 0.9rem;
  border-inline-start: 3px solid #a36b16;
  background: #fffaf0;
  color: #5f461f;
}

.billing-editor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.billing-editor {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
}

.billing-editor > summary {
  min-block-size: 48px;
  padding: 0.85rem 1rem;
  color: var(--teal-900);
  font-weight: 700;
  cursor: pointer;
}

.billing-editor[open] > summary {
  border-block-end: 1px solid var(--line);
}

.billing-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  padding: 1rem;
}

.billing-form-wide,
.billing-form > .button {
  grid-column: 1 / -1;
}

.billing-payment-method-field {
  min-inline-size: 0;
  margin: 0;
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
}

.billing-payment-method-field legend {
  padding-inline: 0.25rem;
  font-weight: 700;
}

.billing-payment-method-option {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.45rem;
  min-block-size: 2.75rem;
  padding-block: 0.25rem;
}

.billing-payment-method-option input {
  inline-size: 1.15rem;
  block-size: 1.15rem;
  accent-color: var(--brand-primary);
}

.billing-payment-method-option small {
  color: var(--muted);
}

.billing-course-notice {
  margin-block-start: 0.65rem;
  padding: 0.65rem 0.75rem;
  border-inline-start: 3px solid var(--brand-primary);
  background: var(--brand-primary-soft);
  white-space: normal;
  overflow-wrap: anywhere;
}

.billing-records {
  display: grid;
}

.home-banner-admin-card.is-archived {
  border-style: dashed;
  background: color-mix(in srgb, var(--paper) 86%, #e5e7eb);
}

.home-banner-admin-state.is-archived {
  border-color: #9ca3af;
  background: #f3f4f6;
  color: #4b5563;
}

.home-banner-admin-state.is-active {
  border-color: color-mix(in srgb, var(--brand-primary) 34%, transparent);
  background: var(--brand-primary-soft);
  color: var(--brand-primary-strong);
}

.billing-table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.billing-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: var(--surface, #fff);
}

.billing-table th,
.billing-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: start;
  vertical-align: top;
}

.billing-table th {
  color: var(--muted, #667774);
  font-size: .82rem;
  white-space: nowrap;
}

.billing-table .row-actions {
  flex-wrap: wrap;
}

.billing-search-form {
  display: flex;
  gap: 12px;
  align-items: end;
  margin: 16px 0;
}

.billing-search-form .field {
  flex: 1 1 280px;
}

.billing-hint {
  color: var(--muted, #667774);
  font-size: .9rem;
}

.billing-detail-list p {
  margin: 8px 0;
}

.billing-record {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-inline-size: 0;
  padding-block: 0.9rem;
  border-block-end: 1px solid var(--line);
}

.billing-record > div:first-child {
  display: grid;
  gap: 0.25rem;
  min-inline-size: 0;
}

.billing-record p {
  margin: 0;
}

.billing-aging {
  display: grid;
  gap: 0;
}

.billing-aging > div {
  display: grid;
  grid-template-columns: minmax(5rem, 1fr) auto auto;
  gap: 1rem;
  padding-block: 0.75rem;
  border-block-end: 1px solid var(--line);
}

.billing-operation-form {
  display: grid;
  gap: 0.85rem;
}

.commerce-member-center {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
  padding-block: 0.5rem;
}

.commerce-catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.commerce-product {
  display: grid;
  align-content: start;
  gap: 0.55rem;
  min-inline-size: 0;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}

.commerce-product span,
.commerce-product p,
.commerce-payment-entry .hint {
  color: var(--muted);
}

.commerce-product p,
.commerce-product strong,
.commerce-product span {
  margin: 0;
  overflow-wrap: anywhere;
}

.commerce-product b {
  color: #7a3f13;
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
}

.commerce-product .button {
  align-self: end;
  min-block-size: 48px;
}

.commerce-payment-entry {
  display: grid;
  gap: 0.6rem;
  inline-size: min(100%, 31rem);
}

.commerce-payment-entry .row-actions {
  justify-content: flex-end;
}

.payment-proof-editor {
  border-block-start: 1px solid var(--line);
  padding-block-start: 0.5rem;
}

.payment-proof-editor > summary {
  min-block-size: 48px;
  padding-block: 0.65rem;
  font-weight: 700;
  cursor: pointer;
}

.payment-proof-editor form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  padding-block: 0.5rem 0.75rem;
}

.payment-proof-editor form .button,
.payment-proof-editor form .field:last-of-type {
  grid-column: 1 / -1;
}

.cantonese-mandarin-admin {
  display: grid;
  gap: 1rem;
}

.billing-aging-item {
  display: grid;
  grid-template-columns: minmax(9rem, 1fr) auto auto;
  gap: 1rem;
  inline-size: 100%;
  padding: 0.75rem 0.25rem;
  border: 0;
  border-block-end: 1px solid var(--line);
  background: transparent;
  color: inherit;
  text-align: start;
  cursor: pointer;
}

.billing-aging-item:hover,
.billing-aging-item:focus-visible {
  background: #f5fbf9;
  outline: 2px solid var(--teal-500);
  outline-offset: -2px;
}

.billing-aging-item strong,
.billing-aging-item em { font-variant-numeric: tabular-nums; }

.billing-searchable-field { min-inline-size: 0; }
.billing-picker-search { margin-block-end: 0.35rem; }
.billing-picker-search::placeholder { color: var(--muted); }

.cm-editor-grid,
.cm-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.cm-table td:nth-child(3),
.cm-table td:nth-child(4) {
  min-width: 9rem;
  white-space: normal;
}

.cm-table td:nth-child(5) {
  min-width: 11rem;
}

@media (max-width: 760px) {
  .cm-editor-grid,
  .cm-summary-grid,
  .cm-metrics { grid-template-columns: 1fr; }

  .cm-table,
  .cm-table tbody,
  .cm-table tr,
  .cm-table td { display: block; width: 100%; }

  .cm-table thead { display: none; }
  .cm-table tr { padding: .75rem; border-bottom: 1px solid var(--line); }
  .cm-table td { border: 0; padding: .25rem 0; min-width: 0 !important; }
  .cm-table td::before { display: inline-block; min-width: 5.5rem; color: var(--muted); font-weight: 700; }
  .cm-table td:nth-child(1)::before { content: "編號"; }
  .cm-table td:nth-child(2)::before { content: "類別"; }
  .cm-table td:nth-child(3)::before { content: "粵語"; }
  .cm-table td:nth-child(4)::before { content: "普通話"; }
  .cm-table td:nth-child(5)::before { content: "漢語拼音"; }
  .cm-table td:nth-child(6)::before { content: "狀態"; }
  .cm-table td:nth-child(7)::before { content: "操作"; }
}

/* Task104: compact, touch-safe quantifier reference management. */
.quantifier-admin {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

.quantifier-admin .embedded-panel {
  margin: 0;
}

.quantifier-table td strong,
.quantifier-table td small {
  display: block;
}

.quantifier-table td small {
  margin-top: .25rem;
  color: var(--muted);
}

.quantifier-table code {
  overflow-wrap: anywhere;
}

.quantifier-metrics {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (max-width: 700px) {
  .quantifier-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quantifier-admin .panel-title-row,
  .quantifier-admin .row-actions {
    align-items: stretch;
  }

  .quantifier-admin .row-actions > .button,
  .quantifier-admin .row-actions > a.button {
    flex: 1 1 9rem;
    text-align: center;
  }

  .quantifier-table,
  .quantifier-table tbody,
  .quantifier-table tr,
  .quantifier-table td {
    display: block;
    width: 100%;
    min-width: 0;
  }

  .quantifier-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .quantifier-table tr[data-quantifier-row] {
    margin-block: .65rem;
    padding: .7rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
  }

  .quantifier-table td {
    display: grid;
    grid-template-columns: 6.4rem minmax(0, 1fr);
    gap: .6rem;
    align-items: start;
    padding: .42rem .2rem;
    border: 0;
    border-bottom: 1px solid color-mix(in srgb, var(--line), transparent 35%);
    text-align: left;
  }

  .quantifier-table td:last-child {
    border-bottom: 0;
  }

  .quantifier-table td:first-child {
    display: block;
    padding-bottom: .2rem;
  }

  .quantifier-table td:nth-child(2)::before { content: "來源序號"; }
  .quantifier-table td:nth-child(3)::before { content: "詞語"; }
  .quantifier-table td:nth-child(4)::before { content: "可接受量詞"; }
  .quantifier-table td:nth-child(5)::before { content: "首選量詞"; }
  .quantifier-table td:nth-child(6)::before { content: "主詞庫"; }
  .quantifier-table td:nth-child(7)::before { content: "狀態"; }
  .quantifier-table td:nth-child(8)::before { content: "操作"; }

  .quantifier-table td::before {
    color: var(--muted);
    font-size: .78rem;
    font-weight: 700;
  }
}

/* Task 44: a lesson stays one row while its actual students are selected from the course roster. */
.course-student-multiselect {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line, #d9e1e8);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface, #fff) 94%, var(--primary, #315f74) 6%);
}

.course-student-multiselect > legend {
  padding: 0 6px;
  font-weight: 750;
}

.course-student-multiselect-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

.course-student-multiselect-toolbar .field {
  flex: 1 1 220px;
  min-width: 0;
  margin: 0;
}

.course-student-selection-summary {
  margin: 10px 0 8px;
  color: var(--muted, #61717c);
  font-size: .9rem;
  font-weight: 650;
}

.course-student-selected-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  min-height: 30px;
  margin-bottom: 10px;
}

.course-student-selected-tags .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
}

.course-student-selected-tags button {
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.course-student-option-list {
  display: grid;
  gap: 6px;
  max-height: 260px;
  overflow: auto;
  padding: 4px;
  border: 1px solid var(--line, #d9e1e8);
  border-radius: 10px;
  background: var(--surface, #fff);
}

.course-student-option-list > label {
  display: grid;
  grid-template-columns: 1.5rem minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  min-width: 0;
  padding: 9px 10px;
  border-radius: 9px;
  cursor: pointer;
}

.course-student-option-list > label > input[type="checkbox"] {
  inline-size: 1.25rem;
  min-inline-size: 1.25rem;
  block-size: 1.25rem;
  margin: 0;
  justify-self: center;
}

.course-student-option-list > label:hover,
.course-student-option-list > label:has(input:focus-visible) {
  background: color-mix(in srgb, var(--primary, #315f74) 8%, transparent);
}

.course-student-option-list > label > span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.course-student-option-list .is-roster-removed {
  border: 1px dashed #c98437;
  background: #fff8ed;
}

.warn-text {
  color: #9b551c;
}

.course-time-only-toggle {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 10px;
  color: var(--muted, #61717c);
}

.course-student-sync-preview {
  margin-top: 12px;
  padding: 14px;
  border: 1px solid #c7d7de;
  border-radius: 14px;
  background: #f6fbfd;
}

@media (max-width: 820px) {
  .course-student-multiselect-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .course-student-multiselect-toolbar .field {
    flex-basis: auto;
    width: 100%;
  }

  .course-student-multiselect-toolbar .row-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }
}

@media (max-width: 430px) {
  .course-student-multiselect {
    padding: 11px;
    border-radius: 12px;
  }

  .course-student-option-list {
    max-height: 310px;
  }

  .course-student-multiselect-toolbar .row-actions {
    grid-template-columns: 1fr;
  }
}

.commerce-proof-status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.75rem;
  margin-block-start: 0.55rem;
  padding-block-start: 0.55rem;
  border-block-start: 1px solid var(--line);
  font-size: 0.86rem;
}

.commerce-proof-status .form-error {
  flex-basis: 100%;
  margin: 0;
}

.inline-proof-reject {
  display: inline-block;
}

.inline-proof-reject > summary {
  cursor: pointer;
  list-style: none;
}

.inline-proof-reject > summary::-webkit-details-marker {
  display: none;
}

.inline-proof-reject .mini-form {
  min-inline-size: min(100%, 20rem);
  margin-block-start: 0.5rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  background: var(--surface-muted);
}

.commerce-student-picker {
  min-inline-size: min(100%, 16rem);
}

.family-student-context {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-inline-size: 0;
  padding: 0.85rem 1rem;
  border: 1px solid #8bc7bb;
  border-radius: var(--radius);
  background: #effaf7;
}

.family-student-context > div {
  display: grid;
  gap: 0.2rem;
  min-inline-size: 0;
}

.family-student-context :where(span, strong, small) {
  margin: 0;
  overflow-wrap: anywhere;
}

.family-student-context span,
.family-student-context small {
  color: var(--muted);
}

.family-student-context strong {
  color: var(--teal-900);
  font-size: 1.05rem;
}

.break-text {
  overflow-wrap: anywhere;
}

.word-filter-panel {
  margin-block: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem;
  background: #f8fffd;
}

.word-filter-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-items: start;
}

.word-audio-picker {
  gap: 0.55rem;
}

.word-audio-search {
  max-inline-size: 28rem;
}

.word-filter-multi-field {
  min-inline-size: 0;
  align-content: start;
}

.word-filter-multi-field > [data-filter-label] {
  font-weight: 800;
}

.word-filter-grid > .field > :where(input, select),
.word-filter-multi:not([open]) {
  block-size: 3rem;
  min-block-size: 3rem;
}

.word-filter-multi {
  position: relative;
  inline-size: 100%;
  min-width: 0;
  border: 1px solid var(--border, #d7dee8);
  border-radius: 8px;
  background: #fff;
}

.word-filter-multi > summary {
  display: flex;
  min-height: calc(3rem - 2px);
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  cursor: pointer;
  list-style: none;
}

.word-filter-multi > summary::-webkit-details-marker { display: none; }
.word-filter-multi > summary b { color: var(--brand, #2457c5); font-size: .84rem; }
.word-filter-multi[open] { z-index: 6; border-color: var(--brand, #2457c5); }
.word-filter-multi > summary:focus-visible { outline: 3px solid #8bb4ff; outline-offset: 2px; }

.word-filter-multi-panel {
  display: grid;
  gap: 10px;
  padding: 0 12px 12px;
  border-top: 1px solid var(--border, #d7dee8);
}

.word-filter-multi-panel .field { padding-top: 10px; }
.word-filter-option-list { display: grid; max-height: 240px; overflow: auto; gap: 4px; padding-inline-end: 4px; }
.word-filter-option-list label { display: flex; min-height: 42px; align-items: center; gap: 9px; padding: 7px 9px; border-radius: 6px; cursor: pointer; }
.word-filter-option-list label:hover,
.word-filter-option-list label:has(input:checked) { background: #eef4ff; }
.word-filter-option-list input { inline-size: 18px; block-size: 18px; accent-color: var(--brand, #2457c5); }
.word-filter-option-list input:focus-visible { outline: 3px solid #8bb4ff; outline-offset: 2px; }
.word-audio-option-list .button {
  inline-size: 100%;
  min-inline-size: 0;
  justify-content: flex-start;
  text-align: start;
  white-space: normal;
  overflow-wrap: anywhere;
}
.word-audio-option-list .button[aria-pressed="true"] { background: #eef4ff; border-color: var(--brand, #2457c5); }
.word-audio-load-status { margin-block: 0; }
.confusable-group-layout { display: grid; grid-template-columns: minmax(180px, 0.7fr) minmax(0, 2fr); gap: 16px; align-items: start; }
.confusable-group-list { display: grid; max-height: 60vh; overflow: auto; gap: 6px; }
.confusable-group-list .button { justify-content: space-between; inline-size: 100%; min-inline-size: 0; text-align: start; white-space: normal; overflow-wrap: anywhere; }
.confusable-group-list .button[aria-pressed="true"] { background: #eef4ff; border-color: var(--brand, #2457c5); }
.confusable-group-detail { min-inline-size: 0; }
.confusable-member-list,
.confusable-search-results { display: grid; max-height: 260px; overflow: auto; gap: 6px; margin-block: 8px 16px; }
.confusable-member-list > div,
.confusable-search-results > div { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; }
.confusable-member-list span,
.confusable-search-results span { min-inline-size: 0; display: grid; }
.confusable-member-list small,
.confusable-search-results small { overflow-wrap: anywhere; }
@media (max-width: 720px) { .confusable-group-layout { grid-template-columns: 1fr; } .confusable-group-list { max-height: 180px; } }

.word-detail-panel {
  margin-block: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  background: #ffffff;
}

.word-manager-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.85rem;
  border-block-end: 1px solid var(--line);
  background: #fbfffe;
}

.word-manager-head.word-bank-head {
  display: grid;
  align-items: stretch;
  gap: 0.65rem;
}

.word-bank-primary-row,
.word-bank-secondary-row,
.word-bank-secondary-actions,
.word-pagination-controls {
  display: flex;
  align-items: safe center;
  gap: 0.55rem;
}

.word-bank-primary-row,
.word-bank-secondary-row {
  min-inline-size: 0;
  justify-content: space-between;
}

.word-bank-primary-row {
  flex-wrap: wrap;
}

.word-bank-primary-row > .row-actions {
  margin-inline-start: auto;
}

.word-bank-secondary-row {
  padding-block-start: 0.65rem;
  border-block-start: 1px solid var(--line);
}

.word-bank-secondary-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
  margin-inline-start: auto;
}

.word-pagination-controls {
  flex-wrap: nowrap;
}

.word-manager-head span {
  display: block;
  color: var(--muted);
  margin-block-start: 0.2rem;
}

.word-page-summary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  min-inline-size: min(100%, 22rem);
}

.word-page-summary > strong {
  flex-basis: 100%;
}

.word-page-size-control {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.word-manager-head .word-page-size-control span {
  display: inline;
  margin: 0;
}

.word-page-size-control select {
  inline-size: auto;
  min-inline-size: 7rem;
  padding-block: 0.45rem;
}

.word-toolbar {
  align-items: end;
}

.word-position-filter {
  grid-column: 1 / -1;
  min-inline-size: 0;
  margin: 0;
  padding: 0.75rem 0 0;
  border: 0;
  border-block-start: 1px solid var(--line);
}

.word-position-filter legend {
  padding: 0 0.5rem 0 0;
  font-weight: 750;
  color: var(--text);
}

.word-position-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.word-position-grid label {
  display: grid;
  gap: 0.35rem;
  min-inline-size: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.word-position-grid select {
  inline-size: 100%;
}

.word-pinyin-cell {
  display: grid;
  gap: 0.2rem;
  min-inline-size: 8rem;
}

.word-pinyin-cell small {
  color: var(--teal-700);
  font-weight: 750;
  white-space: nowrap;
}

.word-row-select {
  display: inline-grid;
  place-items: center;
  min-inline-size: 2.75rem;
  min-block-size: 2.75rem;
  cursor: pointer;
}

.word-row-select input {
  inline-size: 1.1rem;
  block-size: 1.1rem;
  accent-color: var(--teal-700);
}

.source-serial-list {
  display: grid;
  gap: 0.25rem;
  min-inline-size: 10rem;
  font-weight: 500;
}

.source-serial-list span {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
}

.source-serial-list b {
  color: var(--muted);
}

.word-source-field {
  grid-column: 1 / -1;
  min-inline-size: 0;
  margin: 0;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.word-source-field legend {
  padding-inline: 0.35rem;
  font-weight: 750;
}

.word-source-choices {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
}

.word-rule-choices {
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  max-block-size: 18rem;
  overflow: auto;
  padding: 0.15rem;
}

.word-rule-choices .choice {
  flex: 1 1 auto;
  min-inline-size: 0;
  min-block-size: 3rem;
  align-items: center;
  margin: 0;
  padding: 0.55rem 0.7rem;
}

.word-rule-selection-item {
  display: flex;
  min-inline-size: 0;
  align-items: stretch;
  gap: 0.25rem;
}

.word-rule-selection-item.is-selected {
  grid-column: auto;
}

.word-rule-selection-controls {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.15rem;
}

.word-rule-selection-controls[hidden] {
  display: none;
}

.word-rule-selection-controls .text-button {
  min-inline-size: 2.5rem;
  min-block-size: 3rem;
  padding: 0.35rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: #fff;
}

.word-rule-tags {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  vertical-align: middle;
}

.word-rule-tags .tag {
  min-block-size: 1.45rem;
  white-space: nowrap;
}

.word-derived-preview {
  margin-block-start: 0.85rem;
  padding-block-start: 0.75rem;
  border-block-start: 1px solid var(--line);
}

.word-derived-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.word-derived-grid > div {
  display: grid;
  gap: 0.2rem;
  padding: 0.65rem;
  border-radius: 0.65rem;
  background: #f4fbf9;
}

.word-derived-grid span {
  color: var(--muted);
  font-size: 0.85rem;
}

.proper-noun-fields {
  grid-column: 1 / -1;
  min-inline-size: 0;
  margin: 0;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fffd;
}

.proper-noun-fields > legend {
  padding-inline: 0.35rem;
  color: var(--teal-800);
  font-weight: 800;
}

.proper-noun-fields > .form-grid {
  margin-block-start: 0.35rem;
}

.proper-noun-preview-head,
.proper-noun-candidates {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
}

.proper-noun-preview-head {
  justify-content: space-between;
}

.proper-noun-candidates .button {
  min-block-size: 2.75rem;
  overflow-wrap: anywhere;
}

.word-analysis-status.is-confirmed { background: #e6f7ef; color: #176b4c; }
.word-analysis-status.is-pending { background: #fff4d8; color: #7a4c00; }
.word-analysis-status.is-not_applicable { background: #eef1f4; color: #45515d; }

.word-category-group {
  display: grid;
  gap: 0.75rem;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.word-category-group h3 {
  margin: 0;
}

.word-category-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.word-category-option {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.45rem 0.35rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f8fffd;
}

.word-category-options.is-orderable {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.word-category-option.is-orderable {
  min-inline-size: 0;
  border-radius: 0.7rem;
  cursor: grab;
}

.word-category-option.is-orderable:active,
.word-category-option.is-orderable.is-dragging {
  cursor: grabbing;
}

.word-category-option.is-orderable.is-dragging {
  opacity: 0.55;
  border-color: var(--accent);
}

.word-category-option.is-orderable > b {
  min-inline-size: 0;
  flex: 1;
  overflow-wrap: anywhere;
}

.word-category-option.is-orderable::before {
  content: "⋮⋮";
  color: var(--muted);
  letter-spacing: -0.2em;
  user-select: none;
}

.rule-order-buttons {
  display: inline-flex;
  gap: 0.15rem;
}

.rule-order-buttons .text-button {
  min-inline-size: 2rem;
  min-block-size: 2rem;
  padding: 0.2rem;
}

@media (max-width: 44rem) {
  .word-filter-grid,
  .word-source-choices,
  .word-derived-grid {
    grid-template-columns: 1fr;
  }

  .word-position-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .word-manager-head {
    align-items: stretch;
    flex-direction: column;
  }

  .word-bank-primary-row,
  .word-bank-secondary-row {
    align-items: stretch;
    flex-direction: column;
  }

  .word-bank-primary-row > .row-actions,
  .word-bank-secondary-actions {
    inline-size: 100%;
    margin-inline-start: 0;
    justify-content: flex-start;
  }

  .word-pagination-controls {
    max-inline-size: 100%;
  }

  .word-page-summary {
    min-inline-size: 0;
  }

  .word-category-options.is-orderable {
    grid-template-columns: 1fr;
  }

  .word-category-option.is-orderable {
    inline-size: 100%;
    cursor: default;
  }

  .word-category-group .panel-title-row .row-actions {
    inline-size: 100%;
  }

  .proper-noun-candidates {
    align-items: stretch;
    flex-direction: column;
  }

  .proper-noun-candidates .button {
    inline-size: 100%;
  }
}

.modal-dialog {
  inline-size: min(58rem, calc(100vw - 2rem));
  max-block-size: calc(100vh - 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  background: #ffffff;
  color: var(--text);
  overflow: auto;
}

.modal-dialog::backdrop {
  background: rgba(11, 32, 39, 0.45);
}

.modal-dialog > div {
  padding: 1.1rem;
  max-block-size: calc(100vh - 2rem);
  overflow: auto;
}

.modal-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
  border-block-end: 1px solid var(--line);
  padding-block-end: 0.8rem;
  margin-block-end: 1rem;
}

.modal-head h2 {
  margin: 0;
  color: var(--teal-900);
  font-size: 1.35rem;
}

.word-editor {
  display: grid;
  gap: 1rem;
}

.editor-extra {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: #fbfffe;
}

.editor-extra summary {
  cursor: pointer;
  color: var(--teal-800);
  font-weight: 800;
}

.editor-extra .form-grid {
  margin-block-start: 0.85rem;
}

.form-feedback,
.match-preview {
  display: grid;
  gap: 0.65rem;
}

.modal-actions {
  position: sticky;
  inset-block-end: -1.1rem;
  justify-content: flex-end;
  margin-inline: -1.1rem;
  margin-block-end: -1.1rem;
  padding: 0.85rem 1.1rem;
  border-block-start: 1px solid var(--line);
  background: #ffffff;
}

.json-dump {
  max-block-size: 18rem;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: #f7fbfa;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.detail-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
  border-block-end: 1px solid var(--line);
  padding-block-end: 0.75rem;
  margin-block-end: 0.85rem;
}

.detail-head h3 {
  margin: 0;
  color: var(--teal-900);
  font-size: 1.45rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(7rem, 0.35fr) minmax(0, 1fr);
  gap: 0.55rem 1rem;
}

.detail-grid span {
  color: var(--muted);
}

.detail-grid strong {
  overflow-wrap: anywhere;
}

.inline-detail summary {
  cursor: pointer;
  color: var(--teal-700);
  font-weight: 800;
}

.inline-detail[open] {
  min-inline-size: min(36rem, 82vw);
}

.compact-detail {
  margin-block: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: #fbfffe;
}

.choice {
  display: flex;
  gap: 0.6rem;
  margin-block: 0.55rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
}

.choice:has(input:checked) {
  border-color: var(--teal-700);
  background: var(--teal-100);
}

.choice input {
  inline-size: 1rem;
  min-block-size: 1rem;
  margin-block-start: 0.2rem;
}

.list {
  display: grid;
  gap: 0.7rem;
}

.mini-form {
  display: grid;
  gap: 0.65rem;
  margin-block-start: 0.9rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 0.85rem;
  background: #f8fffd;
}

.mini-form h3 {
  margin: 0;
  color: var(--teal-900);
  font-size: 1rem;
}

.practice-admin {
  display: grid;
  gap: 1rem;
}

.paper-admin {
  display: grid;
  gap: 1rem;
}

.paper-admin-host {
  min-inline-size: 0;
  overflow: visible;
}

.assignment-admin,
.assignment-admin-layout {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.assignment-admin-host,
.practice-admin-host {
  min-inline-size: 0;
  overflow: visible;
}

.assignment-list-panel {
  min-inline-size: 0;
}

.assignment-list-panel .table-wrap,
.assignment-detail-panel .table-wrap,
.practice-admin .table-wrap {
  inline-size: 100%;
  max-inline-size: 100%;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.assignment-list-panel .table-wrap,
.practice-record-table {
  max-block-size: 24rem;
}

.assignment-builder-panel,
.assignment-builder-form {
  min-inline-size: 0;
}

.assignment-builder-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem 1rem;
}

.assignment-builder-heading,
.assignment-builder-form > label:has(textarea),
.assignment-builder-actions {
  grid-column: 1 / -1;
}

.assignment-builder-heading {
  position: sticky;
  inset-block-start: 5.4rem;
  z-index: 5;
  padding-block-end: 0.8rem;
  border-block-end: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
}

.assignment-builder-actions {
  position: sticky;
  inset-block-end: 0;
  z-index: 4;
  margin: 0 -0.85rem -0.85rem;
  padding: 0.8rem;
  border-block-start: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
}

.assignment-detail-panel,
.paper-detail-panel,
.practice-record-detail,
.split-makeup-box,
.makeup-detail-box {
  scroll-margin-block-start: 1rem;
}

.assignment-detail-panel:focus,
.paper-detail-panel:focus,
.practice-record-detail:focus,
.split-makeup-box:focus,
.makeup-detail-box:focus {
  outline: 3px solid rgba(233, 130, 61, 0.5);
  outline-offset: 3px;
}

.paper-admin-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.paper-list-panel,
.paper-builder-panel,
.paper-builder-form {
  min-inline-size: 0;
}

.paper-list-panel .table-wrap {
  inline-size: 100%;
  max-block-size: 24rem;
  overflow: auto;
  scrollbar-gutter: stable;
}

.paper-list-export-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-block: 0.75rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--surface, #fff) 88%, var(--teal-50, #ecf8f5));
}

.paper-list-export-toolbar .field {
  min-inline-size: 9rem;
  margin: 0;
}

.paper-list-export-toolbar .check-row,
.paper-list-export-toolbar .button,
.paper-list-export-toolbar .field {
  min-block-size: 2.75rem;
}

.paper-list-export-toolbar .check-row {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  white-space: nowrap;
}

.paper-list-select {
  display: inline-grid;
  place-items: center;
  min-inline-size: 2.25rem;
  min-block-size: 2.25rem;
  margin: 0;
}

.paper-list-select input,
.paper-list-export-toolbar input[type="checkbox"] {
  inline-size: 1.1rem;
  block-size: 1.1rem;
}

.paper-builder-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem 1rem;
}

.paper-builder-form .practice-node-row {
  flex-wrap: wrap;
  overflow-x: visible;
}

.paper-builder-form .practice-node-row .choice {
  flex: 0 1 auto;
  margin: 0;
}

.paper-lesson-selector {
  display: grid;
  gap: 0.7rem;
  min-inline-size: 0;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #f7faf9;
}

.paper-lesson-selector legend {
  padding-inline: 0.3rem;
  color: var(--teal-900);
  font-weight: 800;
}

.paper-lesson-toolbar {
  display: flex;
  align-items: safe center;
  justify-content: space-between;
  gap: 0.75rem;
}

.paper-lesson-summary {
  color: var(--ink-strong);
  font-weight: 750;
}

.paper-lesson-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
  gap: 0.5rem;
  max-block-size: 14rem;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.paper-lesson-options .choice {
  min-block-size: 48px;
  margin: 0;
  padding: 0.65rem 0.75rem;
  border: 1px solid #c8d8d3;
  border-radius: 6px;
  background: #ffffff;
}

.paper-lesson-options .choice:has(input:checked) {
  border-color: #337368;
  background: #e9f5f1;
  color: #174d44;
  font-weight: 800;
}

.paper-builder-form > h3,
.paper-builder-form > fieldset,
.paper-builder-form > .check-row,
.paper-builder-form > label:has(textarea),
.paper-builder-actions {
  grid-column: 1 / -1;
}

.paper-builder-heading {
  position: sticky;
  inset-block-start: 5.4rem;
  z-index: 5;
  margin-block-end: 0.9rem;
  padding-block-end: 0.8rem;
  border-block-end: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
}

.paper-builder-actions {
  position: sticky;
  inset-block-end: 0;
  z-index: 4;
  margin: 0 -0.85rem -0.85rem;
  padding: 0.8rem;
  border-block-start: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
}


.paper-builder-dialog {
  inline-size: min(72rem, calc(100dvw - 2rem));
  max-inline-size: calc(100dvw - 2rem);
  max-block-size: calc(100dvh - 2rem);
  border: 0;
  border-radius: 10px;
  padding: 0;
  background: #ffffff;
  box-shadow: 0 24px 70px rgba(16, 52, 47, 0.24);
}

.paper-builder-dialog::backdrop {
  background: rgba(18, 31, 28, 0.58);
}

.paper-builder-dialog .paper-builder-panel {
  margin: 0;
  max-block-size: calc(100dvh - 2rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.paper-builder-dialog .paper-builder-heading {
  inset-block-start: 0;
}

.paper-preview-dialog {
  inline-size: min(76rem, calc(100dvw - 2rem));
  max-inline-size: calc(100dvw - 2rem);
  max-block-size: calc(100dvh - 2rem);
  border: 0;
  border-radius: 8px;
  padding: 0;
  background: #ffffff;
  box-shadow: 0 24px 70px rgba(16, 52, 47, 0.22);
}

.paper-preview-dialog::backdrop {
  background: rgba(18, 31, 28, 0.58);
}

.paper-preview-shell {
  max-block-size: calc(100dvh - 2rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.paper-preview-toolbar {
  position: sticky;
  inset-block-start: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-block-end: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
}

.paper-preview-sheet {
  inline-size: min(100%, 58rem);
  margin-inline: auto;
  padding: 2rem clamp(1rem, 4vw, 3.5rem) 3rem;
}

.paper-preview-sheet > header {
  padding-block-end: 1.25rem;
  border-block-end: 2px solid #174d44;
  text-align: center;
}

.paper-preview-sheet > header h2 {
  margin-block: 0.25rem 0.55rem;
  color: #16342f;
}

.paper-preview-questions {
  display: grid;
  gap: 0;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.paper-preview-questions > li {
  padding-block: 1.25rem;
  border-block-end: 1px solid #dce7e3;
}

.paper-preview-question-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: #58706a;
  font-size: 0.82rem;
}

.paper-preview-questions h3 {
  margin-block: 0.5rem 0.75rem;
  color: #202724;
  font-size: 1rem;
  line-height: 1.6;
}

.paper-preview-options {
  display: grid;
  gap: 0.4rem;
  margin: 0;
  padding-inline-start: 1.6rem;
}

.paper-preview-answer {
  margin-block: 0.8rem 0;
  padding: 0.65rem 0.75rem;
  border-inline-start: 3px solid #e9823d;
  background: #f7faf9;
  color: #304b45;
}

@media (max-width: 768px) {
  .assignment-builder-form {
    grid-template-columns: minmax(0, 1fr);
  }

  .assignment-builder-form > * {
    grid-column: 1;
  }

  .paper-builder-form {
    grid-template-columns: minmax(0, 1fr);
  }

  .paper-builder-form > * {
    grid-column: 1;
  }

  .paper-builder-form .paper-rule-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .paper-lesson-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .paper-lesson-options {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .paper-builder-dialog,
  .paper-preview-dialog {
    inline-size: calc(100dvw - 1rem);
    max-inline-size: calc(100dvw - 1rem);
    max-block-size: calc(100dvh - 1rem);
  }

  .paper-builder-dialog .paper-builder-panel {
    max-block-size: calc(100dvh - 1rem);
  }

  .paper-preview-shell {
    max-block-size: calc(100dvh - 1rem);
  }

  .paper-preview-sheet {
    padding: 1.25rem 1rem 2rem;
  }
}

/* Task 13: ordinary-practice answer navigation. */
.practice-answer-card {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #fff;
  overflow: clip;
}

.practice-answer-card summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  min-block-size: 2.75rem;
  padding: 0.65rem 0.85rem;
  color: var(--teal-900);
  font-weight: 800;
  cursor: pointer;
}

.practice-answer-card summary:focus-visible,
.practice-answer-number:focus-visible {
  outline: 3px solid #f2a65a;
  outline-offset: 2px;
}

.practice-answer-summary-text {
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 700;
}

.practice-answer-numbers {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(2.75rem, 1fr));
  gap: 0.5rem;
  border-block-start: 1px solid var(--line);
  padding: 0.75rem;
}

.practice-answer-number {
  min-inline-size: 2.75rem;
  min-block-size: 2.75rem;
  border: 1px solid #b9c8c4;
  border-radius: 0.5rem;
  background: #fff;
  color: var(--ink-strong);
  font-weight: 800;
  cursor: pointer;
}

.practice-answer-number.is-answered {
  border-color: #17806f;
  background: #e7f6f1;
}

.practice-answer-number.is-current {
  border-color: #b86b1d;
  outline: 3px solid #f2a65a;
  outline-offset: 1px;
}

.practice-answer-number.is-locked {
  border-color: #b9c3c0;
  background: repeating-linear-gradient(135deg, #f2f5f4 0, #f2f5f4 0.45rem, #e7ecea 0.45rem, #e7ecea 0.9rem);
  color: #455b55;
}

.practice-answer-number.is-locked span {
  display: block;
  font-size: 0.7rem;
  line-height: 1;
}

@media (pointer: coarse) {
  .practice-answer-card summary,
  .practice-answer-number {
    min-block-size: 3rem;
  }
}

@media (max-width: 620px) {
  .practice-answer-numbers {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.paper-export-list {
  display: grid;
  gap: 0.65rem;
  margin-block-start: 1rem;
}

.paper-export-list h3 {
  margin: 0;
}

.paper-export-form {
  display: grid;
  grid-template-columns: minmax(9rem, 1fr) minmax(9rem, 1fr) minmax(12rem, 1.35fr) auto;
  align-items: end;
  gap: 0.75rem;
  margin-block: 1rem;
  border-block: 1px solid var(--line);
  padding-block: 1rem;
}

.paper-export-form .check-row {
  min-block-size: 2.8rem;
  align-items: center;
  margin: 0;
}

.paper-export-status {
  grid-column: 1 / -1;
  margin: 0;
}

.paper-export-error {
  display: block;
  margin-block-start: 0.25rem;
  color: var(--danger);
  font-weight: 700;
}

.question-category-grid,
.paper-question-groups {
  display: grid;
  gap: 0.75rem;
}

.question-category-grid {
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.question-category-card,
.paper-question-group {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.question-category-card {
  display: grid;
  gap: 0.8rem;
  padding: 1rem;
}

.question-category-card strong {
  color: var(--teal-900);
}

.question-preview-note {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.9rem;
  margin-block: 0.35rem 0.75rem;
}

.question-preview-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin-block-end: 0.75rem;
}

.question-preview-toolbar .question-preview-note {
  margin: 0;
}

.compact-check {
  min-block-size: 2.4rem;
  padding-inline: 0.4rem;
}

.question-select-cell {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-inline-size: 2.5rem;
  min-block-size: 2.5rem;
}

.question-select-cell input,
.compact-check input {
  accent-color: var(--teal-700);
}

.paper-question-group {
  overflow: clip;
  content-visibility: auto;
  contain-intrinsic-size: auto none auto 180px;
}

.paper-question-group summary {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
  cursor: pointer;
  padding: 0.85rem 1rem;
  color: var(--teal-900);
}

.paper-question-group[open] summary {
  border-bottom: 1px solid var(--line);
}

.paper-question-group > .question-preview-note,
.paper-question-group > .table-wrap,
.paper-question-group > table {
  margin-inline: 1rem;
}

.embedded-panel {
  border: 0;
  box-shadow: none;
  background: transparent;
  padding: 0.85rem;
}

.compact-grid {
  align-items: start;
}

.practice-options {
  display: grid;
  gap: 0.75rem;
}

.compact {
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
}

.attempt-summary {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
}

.attempt-summary span {
  display: grid;
  gap: 0.15rem;
  min-block-size: 4.4rem;
  align-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: #f8fffd;
  color: var(--muted);
}

.attempt-summary strong {
  color: var(--teal-900);
  font-size: 1.25rem;
}

.tag {
  display: inline-flex;
  min-block-size: 1.65rem;
  align-items: center;
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  background: var(--teal-100);
  color: var(--teal-900);
  font-size: 0.85rem;
  font-weight: 800;
}

.tag.warn {
  background: #fff8cf;
  color: #785d00;
}

.tag.bad {
  background: #fff0ef;
  color: var(--danger);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-block-start: 0.65rem;
}

.excel-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
  gap: 0.7rem;
  margin-block: 0.8rem;
}

.excel-summary-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: #fbfffe;
}

.excel-summary-grid span {
  display: block;
  color: var(--muted);
}

.excel-summary-grid strong {
  color: var(--teal-900);
  font-size: 1.45rem;
}

.import-summary.bad {
  border-color: #ffd0cc;
  background: #fff7f6;
  color: var(--danger);
}

.compact-table {
  margin-block-start: 0.8rem;
}

.compact-table table {
  min-inline-size: 46rem;
}

.compact-table th,
.compact-table td {
  max-inline-size: 14rem;
  overflow-wrap: anywhere;
  vertical-align: top;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

table {
  inline-size: 100%;
  min-inline-size: 52rem;
  border-collapse: collapse;
}

th,
td {
  padding: 0.78rem;
  border-block-end: 1px solid var(--line);
  text-align: start;
  vertical-align: top;
  overflow-wrap: anywhere;
}

th {
  background: #edf9f6;
  color: var(--teal-900);
}

.toast {
  position: fixed;
  inset-inline-end: 1rem;
  inset-block-end: 1rem;
  z-index: 40;
  max-inline-size: min(24rem, calc(100vw - 2rem));
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  background: var(--teal-900);
  color: #ffffff;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(0.6rem);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.floating-service {
  position: fixed;
  z-index: 25;
  inset-inline-end: 1rem;
  inset-block-end: 5rem;
  display: grid;
  gap: 0.6rem;
}

.floating-service a {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-inline-size: 9.5rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius);
  padding: 0.5rem 0.65rem;
  background: rgba(255, 255, 255, 0.94);
  color: var(--teal-900);
  box-shadow: var(--shadow);
  font-weight: 800;
}

.floating-service img {
  inline-size: 2.2rem;
  block-size: 2.2rem;
  object-fit: contain;
}

.member-admin .embedded-panel {
  overflow-x: visible;
}

.member-admin {
  gap: 0.75rem;
}

.member-list-table {
  max-inline-size: 100%;
  overflow-x: auto;
  scrollbar-gutter: stable;
}

.member-list-table table {
  min-inline-size: 122rem;
  table-layout: fixed;
}

.member-list-table th {
  position: sticky;
  inset-block-start: 0;
  z-index: 2;
}

.member-list-table th:nth-child(1),
.member-list-table td:nth-child(1) { inline-size: 8.5rem; }
.member-list-table th:nth-child(2),
.member-list-table td:nth-child(2) { inline-size: 10rem; }
.member-list-table th:nth-child(3),
.member-list-table td:nth-child(3) { inline-size: 9.5rem; }
.member-list-table th:nth-child(4),
.member-list-table td:nth-child(4) { inline-size: 14rem; }
.member-list-table th:nth-child(5),
.member-list-table td:nth-child(5) { inline-size: 10rem; }
.member-list-table th:nth-child(6),
.member-list-table td:nth-child(6) { inline-size: 8rem; }
.member-list-table th:nth-child(7),
.member-list-table td:nth-child(7) { inline-size: 14rem; }
.member-list-table th:nth-child(8),
.member-list-table td:nth-child(8) { inline-size: 11rem; }
.member-list-table th:nth-child(9),
.member-list-table td:nth-child(9) { inline-size: 8rem; }
.member-list-table th:nth-child(10),
.member-list-table td:nth-child(10) { inline-size: 6rem; }
.member-list-table th:nth-child(11),
.member-list-table td:nth-child(11) { inline-size: 19rem; }

.nowrap,
.member-list-table th {
  white-space: nowrap;
  overflow-wrap: normal;
  word-break: normal;
}

.member-list-truncate,
.member-email {
  display: block;
  inline-size: 100%;
  max-inline-size: 100%;
  min-inline-size: 0;
  overflow: hidden;
  white-space: nowrap;
  overflow-wrap: normal;
  word-break: normal;
  text-overflow: ellipsis;
}

.member-list-table td:nth-child(1),
.member-list-table td:nth-child(2),
.member-list-table td:nth-child(3),
.member-list-table td:nth-child(4),
.member-list-table td:nth-child(5) {
  overflow: hidden;
}

.member-row-actions {
  min-inline-size: 18rem;
  align-items: center;
  gap: 0.4rem 0.7rem;
}

.member-row-actions .text-button {
  min-block-size: 2.5rem;
  white-space: nowrap;
}

.member-list-table th:last-child,
.member-list-table td:last-child {
  position: sticky;
  inset-inline-end: 0;
  z-index: 3;
  border-inline-start: 1px solid var(--line);
  background: #fff;
  box-shadow: -0.5rem 0 0.8rem rgba(12, 50, 44, 0.06);
}

.member-list-table th:last-child {
  z-index: 5;
  background: #edf9f6;
}

.member-card-list {
  display: none;
}

.member-list-loading {
  display: grid;
  gap: 0.65rem;
  min-block-size: 15rem;
  padding-block: 0.5rem;
}

.member-list-loading span {
  display: block;
  min-block-size: 3.25rem;
  border-radius: 0.35rem;
  background: linear-gradient(90deg, #eef4f2 25%, #f8fbfa 45%, #eef4f2 65%);
  background-size: 220% 100%;
  animation: member-list-loading 1.15s ease-in-out infinite;
}

@keyframes member-list-loading {
  from { background-position: 100% 0; }
  to { background-position: -100% 0; }
}

@media (prefers-reduced-motion: reduce) {
  .member-list-loading span { animation: none; }
}

.member-editor-dialog {
  inline-size: min(64rem, calc(100dvw - 2rem));
  max-inline-size: calc(100dvw - 2rem);
  max-block-size: calc(100dvh - 2rem);
  margin: auto;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.member-editor-dialog::backdrop {
  background: rgba(6, 36, 32, 0.55);
  backdrop-filter: blur(3px);
}

.member-editor-dialog > form {
  display: grid;
  gap: 1rem;
  max-block-size: calc(100dvh - 2rem);
  overflow: auto;
  padding: 1.25rem;
}

.member-editor-dialog fieldset {
  min-inline-size: 0;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.member-editor-dialog legend {
  padding-inline: 0.35rem;
  color: var(--teal-900);
  font-weight: 800;
}

.member-create-dialog[open] {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  padding: 1.25rem;
}

.member-create-dialog > .panel-title-row {
  margin-block-end: 1rem;
}

.member-create-dialog > .member-create-form {
  min-block-size: 0;
  overflow: auto;
}

.member-editor-student-name input,
.member-editor-student-grade select {
  block-size: 2.5rem;
  min-block-size: 2.5rem;
  padding-block: 0.45rem;
}

.member-device-dialog[open] {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 1rem;
  overflow: hidden;
  padding: 1.25rem;
}

.member-device-dialog > [data-member-device-body] {
  min-block-size: 8rem;
  overflow: auto;
  overscroll-behavior: contain;
}

.member-device-content {
  display: grid;
  gap: 1rem;
}

.member-device-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.member-device-summary > div {
  display: grid;
  gap: 0.15rem;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft, #f7faf8);
}

.member-device-summary strong {
  color: var(--teal-900);
  font-size: 1.45rem;
  line-height: 1;
}

.member-device-summary span {
  color: var(--muted);
  font-size: 0.82rem;
}

.admin-device-list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.admin-device-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.admin-device-item.is-online {
  border-inline-start: 0.3rem solid var(--teal-700, #176b5b);
}

.admin-device-main,
.admin-device-title {
  min-inline-size: 0;
}

.admin-device-title {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.admin-device-title strong {
  overflow-wrap: anywhere;
}

.admin-device-title .tag.muted {
  border-color: #c8d1cf;
  background: #eef2f1;
  color: #556864;
}

.admin-device-item dl {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 0.8rem 0 0;
}

.admin-device-item dl > div {
  min-inline-size: 0;
}

.admin-device-item dt {
  color: var(--muted);
  font-size: 0.78rem;
}

.admin-device-item dd {
  margin: 0.15rem 0 0;
  overflow-wrap: anywhere;
  font-size: 0.88rem;
}

.member-device-loading {
  display: grid;
  place-items: center;
  gap: 0.75rem;
  min-block-size: 10rem;
  color: var(--muted);
}

.member-device-loading .spinner {
  inline-size: 1.75rem;
  block-size: 1.75rem;
  border: 0.2rem solid var(--line);
  border-block-start-color: var(--teal-700, #176b5b);
  border-radius: 50%;
  animation: member-device-spin 0.8s linear infinite;
}

.member-device-footer {
  padding-block-start: 0.85rem;
  border-block-start: 1px solid var(--line);
}

@keyframes member-device-spin {
  to { transform: rotate(1turn); }
}

@media (prefers-reduced-motion: reduce) {
  .member-device-loading .spinner { animation: none; }
}

.field-inline {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.field-inline > input {
  flex: 1 1 auto;
  min-inline-size: 0;
}

.member-section {
  min-inline-size: 0;
  padding: 0;
}

.member-section > summary,
.dashboard-data-summary {
  cursor: pointer;
  color: #174d44;
  font-weight: 850;
  list-style-position: inside;
}

.member-section > summary {
  position: sticky;
  inset-block-start: 0;
  z-index: 6;
  padding: 1rem;
  background: #f7faf9;
}

.member-section[open] {
  max-block-size: min(75dvh, 52rem);
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.member-section[open] > summary {
  border-block-end: 1px solid var(--line);
  background: #edf8f4;
}

.member-section > :not(summary) {
  margin-inline: 1rem;
}

.member-section > :last-child {
  margin-block-end: 1rem;
}

.member-admin-navigation {
  position: sticky;
  inset-block-start: 0;
  z-index: 12;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 9rem), 1fr));
  gap: 0.5rem;
  overflow: visible;
  padding: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 0.45rem 1.2rem rgba(14, 58, 50, 0.08);
}

.member-admin-navigation-item {
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.45rem;
  min-block-size: 2.8rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid transparent;
  border-radius: 0.7rem;
  color: var(--teal-900);
  text-decoration: none;
  white-space: normal;
  font-weight: 800;
}

.member-admin-navigation-item strong {
  display: grid;
  place-items: center;
  min-inline-size: 1.65rem;
  min-block-size: 1.65rem;
  padding-inline: 0.35rem;
  border-radius: 999px;
  background: #e8f3f0;
  font-size: 0.78rem;
}

.member-admin-navigation-item:is(:hover, :focus-visible) {
  border-color: #9fc7bd;
  background: #f1f8f6;
}

.member-admin-navigation-item.is-active {
  border-color: var(--teal-700);
  background: var(--teal-900);
  color: #fff;
}

.member-admin-navigation-item.is-active strong {
  background: rgba(255, 255, 255, 0.18);
}

.member-admin-action-workflows {
  display: grid;
  gap: 0.75rem;
}

.member-admin-action-workflow {
  min-inline-size: 0;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: #fff;
}

.member-admin-action-workflow > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-block-size: 3.25rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
}

.member-admin-action-workflow > summary strong {
  color: var(--teal-900);
}

.member-admin-action-workflow > summary span {
  color: var(--muted);
  font-size: 0.88rem;
  text-align: end;
}

.member-admin-action-workflow[open] > summary {
  border-block-end: 1px solid var(--line);
  background: #edf8f4;
}

.member-admin-action-workflow-body {
  min-inline-size: 0;
  padding: 1rem;
}

.member-admin-action-workflow[open] > .member-admin-action-workflow-body {
  display: block;
  inline-size: 100%;
  visibility: visible;
}

.member-admin-action-workflow[open] > .member-admin-action-workflow-body > .membership-plan-form {
  display: grid;
  inline-size: 100%;
}

.member-admin-action-workflow-body > .mini-form {
  margin: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.member-admin-back-top {
  position: fixed;
  inset-inline-end: max(1rem, env(safe-area-inset-right));
  inset-block-end: max(1rem, env(safe-area-inset-bottom));
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-block-size: 3rem;
  border-radius: 0.5rem;
  box-shadow: 0 0.5rem 1.4rem rgba(12, 50, 44, 0.18);
}

.member-admin-back-top[hidden] {
  display: none;
}

.member-admin > .member-section {
  display: none;
  min-inline-size: 0;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.member-admin > .member-section[open] {
  display: block;
  max-block-size: none;
  overflow: visible;
  scrollbar-gutter: auto;
}

.member-admin > .member-section > summary {
  display: none;
}

.member-admin > .member-section > :not(summary) {
  margin-inline: 0;
}

.member-group-choice-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  gap: 0.65rem;
}

.member-group-choice {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  min-inline-size: 0;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #f8fbfa;
  cursor: pointer;
}

.member-group-choice:has(input:checked) {
  border-color: var(--teal-700);
  background: #edf8f4;
  box-shadow: inset 0 0 0 1px rgba(18, 105, 89, 0.16);
}

.member-group-choice input {
  flex: 0 0 auto;
  inline-size: 1.15rem;
  min-inline-size: 1.15rem;
  max-inline-size: 1.15rem;
  block-size: 1.15rem;
  min-block-size: 1.15rem;
  margin-block-start: 0.2rem;
}

.member-group-choice > span {
  flex: 1 1 auto;
  min-inline-size: 0;
}

.member-group-choice span,
.member-group-choice strong,
.member-group-choice small {
  display: block;
  min-inline-size: 0;
}

.member-group-choice small {
  margin-block-start: 0.2rem;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.member-group-choice.is-inactive {
  opacity: 0.72;
}

.member-editor-status {
  margin-block: 0.75rem;
  padding: 0.75rem 0.9rem;
  border-radius: 0.65rem;
  background: #edf8f4;
  color: var(--teal-900);
  font-weight: 700;
}

.member-editor-status[data-tone="error"] {
  background: #fff1ef;
  color: #8e2f24;
}

.member-editor-status[data-tone="loading"] {
  background: #f1f5f4;
  color: var(--muted);
}

.member-action-status {
  flex: 1 1 100%;
  min-block-size: 1.25rem;
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.member-action-status[data-tone="error"] {
  color: #8e2f24;
}

.billing-audit-records {
  max-block-size: 34rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.course-detail,
.course-admin .table-wrap {
  overflow-x: auto;
}

.course-filter-grid {
  align-items: end;
}

.compact-tabs {
  margin-block: 0.75rem 1rem;
  overflow-x: auto;
}

.inline-management-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
  margin-block: 0.75rem 1rem;
}

.inline-management-form select,
.inline-management-form input {
  min-inline-size: 14rem;
}

.member-combobox {
  position: relative;
  flex: 1 1 24rem;
  min-inline-size: min(100%, 20rem);
}

.member-combobox .field {
  margin: 0;
}

.member-combobox-input {
  display: flex;
  align-items: stretch;
  gap: 0.45rem;
}

.member-combobox-input input {
  flex: 1 1 auto;
  min-inline-size: 0;
}

.member-combobox-input .text-button {
  flex: 0 0 auto;
}

.member-combobox-results {
  position: absolute;
  z-index: 30;
  inset-block-start: calc(100% + 0.25rem);
  inset-inline: 0;
  max-block-size: 19rem;
  margin: 0;
  padding: 0.35rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  list-style: none;
  border: 1px solid rgba(31, 41, 55, 0.22);
  border-radius: calc(var(--radius) * 0.75);
  background: #fff;
  box-shadow: 0 0.8rem 2rem rgba(31, 41, 55, 0.16);
}

.member-combobox-results li[aria-selected="true"] button,
.member-combobox-results button:hover {
  background: rgba(64, 91, 132, 0.12);
}

.member-combobox-results button {
  inline-size: 100%;
  min-block-size: 2.75rem;
  padding: 0.65rem 0.75rem;
  border: 0;
  border-radius: calc(var(--radius) * 0.55);
  color: var(--ink);
  background: transparent;
  text-align: start;
  cursor: pointer;
}

.member-combobox-message {
  padding: 0.75rem;
  color: var(--muted);
}

.member-combobox :where(input, button):focus-visible,
.member-combobox-results button:focus-visible {
  outline: 3px solid rgba(43, 87, 154, 0.45);
  outline-offset: 2px;
}

.empty-state {
  border: 1px dashed rgba(31, 41, 55, 0.22);
  border-radius: var(--radius);
  padding: 1rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.72);
}

.learning-node-manager {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
  --learning-accent: #1d587a;
  --learning-accent-soft: #eaf3f7;
}

.learning-node-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
}

.learning-node-toolbar .field {
  min-inline-size: 14rem;
}

.learning-node-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.learning-node-tree-panel,
.learning-node-detail-panel {
  min-inline-size: 0;
  border: 1px solid color-mix(in srgb, var(--learning-accent) 16%, var(--line));
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  padding: 1rem;
  box-shadow: 0 12px 28px rgba(16, 53, 67, 0.06);
}

.learning-node-tree-panel {
  max-block-size: 70dvh;
  overflow: auto;
  overscroll-behavior: contain;
}

.learning-node-tree-panel > h3 {
  position: sticky;
  z-index: 2;
  inset-block-start: -1rem;
  margin: -1rem -0.25rem 0;
  padding: 1rem 0.25rem 0.4rem;
  background: rgba(255, 255, 255, 0.98);
  color: var(--learning-accent);
  letter-spacing: 0.01em;
}

.learning-stage-order-note {
  position: sticky;
  z-index: 2;
  inset-block-start: 2rem;
  margin: 0 -0.25rem 0.65rem;
  padding: 0 0.25rem 0.65rem;
  border-block-end: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  color: #365e59;
  font-size: 0.78rem;
  font-weight: 750;
}

.learning-tree-root,
.learning-tree-children {
  list-style: none;
  margin: 0;
  padding: 0;
}

.learning-tree-children {
  margin-inline-start: 0.6rem;
  padding-inline-start: 0.7rem;
  border-inline-start: 1px dashed color-mix(in srgb, var(--learning-accent) 32%, transparent);
}

.learning-tree-item {
  margin-block: 0.35rem;
}

.learning-tree-root > .learning-tree-item + .learning-tree-item {
  margin-block-start: 0.55rem;
  padding-block-start: 0.55rem;
  border-block-start: 1px solid color-mix(in srgb, var(--learning-accent) 12%, transparent);
}

.learning-tree-row {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr) auto auto;
  gap: 0.45rem;
  align-items: center;
  min-block-size: 3.1rem;
  border-radius: calc(var(--radius) - 2px);
  padding: 0.35rem;
  transition: background-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.learning-tree-row:hover,
.learning-tree-row:focus-within {
  background: var(--learning-accent-soft);
  transform: translateX(2px);
}

.learning-tree-row[draggable="true"] {
  cursor: grab;
}

.learning-tree-row.is-dragging {
  opacity: 0.45;
  cursor: grabbing;
}

.learning-tree-row.is-drop-before {
  box-shadow: inset 0 3px 0 var(--teal-700);
}

.learning-tree-row.is-drop-after {
  box-shadow: inset 0 -3px 0 var(--teal-700);
}

.learning-tree-row.is-drop-inside {
  background: var(--learning-accent-soft);
  box-shadow: inset 0 0 0 2px var(--learning-accent);
}

.learning-node-move-button {
  align-self: center;
}

.learning-tree-row.is-selected {
  background: var(--learning-accent-soft);
  box-shadow: inset 4px 0 0 var(--learning-accent), inset 0 0 0 1px color-mix(in srgb, var(--learning-accent) 26%, transparent);
}

.learning-tree-item.is-inactive {
  opacity: 0.58;
}

.learning-node-button {
  min-inline-size: 0;
  min-block-size: 2.5rem;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: start;
  cursor: pointer;
}

.learning-node-button strong,
.learning-node-button span {
  display: block;
  overflow-wrap: anywhere;
}

.learning-node-button strong {
  color: #173f52;
  font-size: 0.98rem;
  line-height: 1.35;
}

.learning-node-button span {
  color: var(--muted);
  font-size: 0.82rem;
}

.learning-node-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-block-start: 1rem;
  scroll-margin-block-start: 1rem;
  border: 1px solid color-mix(in srgb, var(--learning-accent) 22%, var(--line));
  border-radius: var(--radius);
  padding: 1rem;
  background: #f7fbfc;
}

.learning-node-form h3,
.learning-node-form .row-actions {
  grid-column: 1 / -1;
}

.learning-node-parent-field {
  grid-column: 1 / -1;
}

.learning-node-parent-picker {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 0.75rem;
}

.learning-node-parent-field > .hint {
  margin: 0;
}

.learning-node-order-hint {
  grid-column: 1 / -1;
  margin: 0;
}

.learning-node-form input,
.learning-node-form select {
  min-block-size: 2.75rem;
}

#learning-node-move-dialog {
  inline-size: min(52rem, calc(100% - 2rem));
  max-block-size: min(88dvh, 54rem);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  background: #fff;
  box-shadow: 0 1.5rem 5rem rgba(15, 23, 42, 0.25);
}

#learning-node-move-dialog::backdrop {
  background: rgba(15, 23, 42, 0.42);
}

.learning-node-move-dialog-shell {
  display: grid;
  gap: 0.9rem;
  padding: 1rem;
}

.learning-node-move-source {
  margin: 0;
  color: var(--muted);
}

.learning-node-move-source strong {
  color: var(--ink);
}

.learning-node-move-targets {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  max-block-size: 15rem;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 0.2rem;
}

.learning-node-move-target {
  min-inline-size: 0;
  display: grid;
  gap: 0.2rem;
  padding: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  color: inherit;
  background: #fff;
  text-align: start;
  cursor: pointer;
}

.learning-node-move-target.is-selected {
  border-color: var(--teal-700);
  background: var(--teal-100);
  box-shadow: inset 0 0 0 1px var(--teal-700);
}

.learning-node-move-target span {
  color: var(--muted);
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.learning-node-move-placements {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  border: 0;
}

.learning-node-move-placements legend {
  margin-block-end: 0.4rem;
  font-weight: 800;
}

.learning-node-move-preview {
  display: grid;
  gap: 0.3rem;
  padding: 0.8rem;
  border-radius: 0.7rem;
  background: #f2fbf8;
}

.learning-node-move-preview span {
  color: var(--muted);
}

.learning-node-move-actions {
  justify-content: flex-end;
}

.learning-tool-section {
  min-inline-size: 0;
  border-block-start: 1px solid var(--line);
}

.learning-tool-section > summary {
  min-block-size: 3.4rem;
  padding-block: 1rem;
  color: var(--learning-accent);
  cursor: pointer;
  font-weight: 850;
}

.learning-tool-section[open] > summary {
  border-block-end: 1px solid var(--line);
}

.learning-tool-section > .lesson-word-import-panel {
  margin-block-start: 0;
  border-block-start: 0;
}

.word-admin-host,
.pinyin-admin-host {
  min-inline-size: 0;
  overflow: visible;
}

.word-list-table,
.pinyin-list-table {
  inline-size: 100%;
  max-inline-size: 100%;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.word-list-table {
  max-block-size: 38rem;
}

.pinyin-list-table {
  max-block-size: 38rem;
}

.word-list-table [data-word-delete] {
  min-block-size: 2rem;
  border-color: #ead9d6;
  border-radius: 0.55rem;
  padding: 0.25rem 0.55rem;
  background: #fffafa;
  color: #a86b65;
  font-size: 0.82rem;
  box-shadow: none;
}

.word-list-table [data-word-delete]:hover {
  border-color: #dfc3bf;
  background: #fff5f4;
  color: #92574f;
}

.lesson-word-import-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
  margin-block-start: 1rem;
  border-block-start: 1px solid var(--line);
  padding-block-start: 1rem;
  min-inline-size: 0;
}

.import-workflow-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.55rem;
}

.import-workflow-strip span {
  min-block-size: 3rem;
  display: grid;
  place-items: center;
  border: 1px solid rgba(34, 49, 95, 0.12);
  border-radius: var(--radius);
  padding: 0.55rem;
  background: linear-gradient(135deg, rgba(255, 241, 166, 0.46), rgba(255, 255, 255, 0.95));
  color: var(--navy);
  font-weight: 800;
  text-align: center;
}

.lesson-word-import-panel .panel-title-row {
  align-items: flex-start;
}

.lesson-word-import-panel h3,
.lesson-word-import-panel h4 {
  margin: 0;
  color: var(--teal-900);
}

.lesson-word-import-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.lesson-import-directory {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
  min-inline-size: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: #fff;
}

.lesson-import-directory legend {
  padding-inline: 0.3rem;
  color: var(--teal-900);
  font-weight: 800;
}

.lesson-import-directory .full {
  grid-column: 1 / -1;
}

.lesson-word-import-form .field,
.lesson-word-import-form .full,
.lesson-word-text {
  min-inline-size: 0;
}

.lesson-word-text,
.lesson-word-import-form .full {
  grid-column: 1 / -1;
}

.lesson-word-file-field {
  grid-column: 1 / -1;
}

.lesson-word-file-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-inline-size: 0;
}

.lesson-word-file-row input[type="file"] {
  flex: 1 1 20rem;
  min-inline-size: 0;
}

.lesson-word-file-row .button {
  flex: 0 0 auto;
}

.lesson-word-text textarea {
  min-block-size: 9rem;
  resize: vertical;
}

.lesson-word-preview,
.lesson-word-history {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
  min-inline-size: 0;
}

.generated-practice-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid rgba(6, 95, 85, 0.28);
  border-radius: var(--radius);
  padding: 1rem;
  background: #effbf7;
}

.generated-practice-result strong,
.generated-practice-result p {
  display: block;
  margin: 0;
}

.generated-practice-result p {
  margin-block-start: 0.25rem;
  color: var(--muted);
}

@media (max-width: 768px) {
  .generated-practice-result {
    align-items: stretch;
    flex-direction: column;
  }

  .generated-practice-result .row-actions .button {
    flex: 1 1 12rem;
  }
}

.lesson-word-preview .table-wrap,
.lesson-word-history .table-wrap {
  inline-size: 100%;
  overflow-x: auto;
}

.lesson-word-preview table,
.lesson-word-history table {
  min-inline-size: 44rem;
}

.question-generation-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.question-generation-form .question-type-field,
.question-generation-form .full {
  grid-column: 1 / -1;
}

.prompt-template-settings {
  min-inline-size: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.62);
}

.prompt-template-settings > summary {
  color: var(--teal-900);
  cursor: pointer;
  font-weight: 800;
}

.prompt-template-settings > .hint {
  margin-block: 0.65rem;
}

.question-template-scope {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  min-inline-size: 0;
  margin: 0 0 0.85rem;
  padding: 0;
  border: 0;
}

.question-template-scope legend {
  grid-column: 1 / -1;
  margin-block-end: 0.1rem;
  color: var(--teal-900);
  font-weight: 800;
}

.question-template-scope .choice {
  align-items: flex-start;
  min-block-size: 5.4rem;
  margin: 0;
  cursor: pointer;
  transition: border-color 0.16s ease, background-color 0.16s ease, box-shadow 0.16s ease;
}

.question-template-scope .choice:hover,
.question-template-scope .choice:has(input:focus-visible) {
  border-color: var(--teal-500);
  box-shadow: 0 0 0 3px rgba(47, 111, 107, 0.12);
}

.question-template-scope .choice:has(input:checked) {
  box-shadow: inset 3px 0 0 var(--teal-700);
}

.question-template-scope .choice > span {
  display: grid;
  gap: 0.2rem;
  min-inline-size: 0;
}

.question-template-scope .choice small {
  color: var(--muted);
  line-height: 1.45;
}

.prompt-template-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.prompt-template-grid input {
  min-block-size: 2.75rem;
  background: #fff;
}

.question-type-field {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 0.55rem;
  min-inline-size: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
}

.question-type-field legend {
  padding-inline: 0.3rem;
  color: var(--teal-900);
  font-weight: 800;
}

.question-type-field .choice {
  min-block-size: 48px;
  align-items: center;
}

.paper-rule-field {
  grid-template-columns: 1fr;
}

.paper-rule-row {
  display: grid;
  grid-template-columns: minmax(8rem, 0.8fr) minmax(8rem, 1fr) minmax(8rem, 1fr);
  gap: 0.6rem;
  align-items: center;
  padding: 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.62);
}

.paper-rule-row:has([data-paper-rule-enabled]:not(:checked)) .field {
  opacity: 0.45;
}

.paper-rule-type {
  min-block-size: 48px;
  margin: 0;
  color: var(--teal-900);
  font-weight: 800;
}

.paper-rule-summary {
  display: grid;
  place-items: center;
  min-block-size: 3rem;
  border: 1px solid #b9d2cb;
  border-radius: var(--radius-sm);
  background: #edf8f4;
  color: #174d44;
  font-size: 1rem;
  font-weight: 850;
}

.question-review-admin {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

body[data-shell="app"] #app-view.question-admin-wide {
  max-inline-size: 112rem;
}

.question-admin-host,
.question-review-results,
.question-category-overview {
  min-inline-size: 0;
}

.question-admin-host {
  overflow: visible;
}

.question-review-layout {
  display: grid;
  grid-template-columns: minmax(16rem, 20rem) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.question-review-tree-panel {
  position: sticky;
  inset-block-start: 6.5rem;
  max-block-size: calc(100dvh - 8rem);
}

.question-tree-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-block-end: 0.75rem;
}

.question-tree-heading h3,
.question-tree-heading p {
  margin: 0;
}

.question-tree-heading p {
  margin-block-start: 0.25rem;
  font-size: 0.84rem;
}

.question-tree-current {
  margin: 0 0 0.75rem;
  border-inline-start: 3px solid var(--teal-500);
  padding: 0.55rem 0.65rem;
  background: var(--teal-100);
  color: var(--teal-900);
  font-size: 0.85rem;
  font-weight: 750;
  overflow-wrap: anywhere;
}

.question-category-overview {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem;
  background: #f8fbfa;
}

.question-preview-table table {
  inline-size: max-content;
  min-inline-size: max(100%, 88rem);
}

.question-preview-table th:nth-child(2),
.question-preview-table td:nth-child(2) {
  min-inline-size: 22rem;
}

.question-preview-table th:nth-child(5),
.question-preview-table td:nth-child(5),
.question-preview-table th:nth-child(6),
.question-preview-table td:nth-child(6) {
  min-inline-size: 9rem;
}

.question-preview-table th:last-child,
.question-preview-table td:last-child {
  position: sticky;
  inset-inline-end: 0;
  z-index: 2;
  min-inline-size: 15rem;
  background: #ffffff;
  box-shadow: -1px 0 0 var(--line);
}

.question-preview-table thead th:last-child {
  z-index: 3;
  background: #edf9f6;
}

.question-row-actions {
  flex-wrap: nowrap;
  gap: 0.35rem;
  white-space: nowrap;
}

.question-delete-button {
  min-block-size: 2.25rem;
  border-color: #e6d9d7;
  border-radius: 8px;
  padding: 0.35rem 0.55rem;
  background: #faf8f7;
  color: #8d625c;
  font-size: 0.8rem;
  box-shadow: none;
}

.question-delete-button:hover,
.question-delete-button:focus-visible {
  border-color: #d4aaa4;
  background: #f7efed;
  color: #7e3e36;
}

.question-editor-dialog,
.question-permission-dialog {
  inline-size: min(74rem, calc(100vw - 2rem));
}

/* Admin practice workspace: Figma-aligned compact layout without changing APIs. */
.question-review-admin {
  --question-surface: #ffffff;
  --question-canvas: #f1f4f2;
  --question-header: #eef3f0;
  --question-border: #d9e2de;
  --question-muted: #66736f;
  gap: 0.9rem;
  color: #22302c;
}

.question-admin-page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.3rem 0 0.2rem;
}

.question-admin-page-header nav {
  display: flex;
  gap: 0.45rem;
  align-items: center;
  margin-block-end: 0.3rem;
  color: var(--question-muted);
  font-size: 0.78rem;
}

.question-admin-page-header nav b {
  color: #a1aaa6;
  font-weight: 500;
}

.question-admin-page-header h2,
.question-admin-page-header p,
.question-list-heading h3 {
  margin: 0;
}

.question-admin-page-header h2 {
  color: var(--teal-900);
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  line-height: 1.25;
  letter-spacing: 0;
}

.question-admin-page-header p {
  margin-block-start: 0.3rem;
  color: var(--question-muted);
  font-size: 0.88rem;
}

.question-admin-header-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
}

.question-admin-workspaces {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  border-block-end: 1px solid var(--question-border);
  scrollbar-width: thin;
}

.question-admin-workspaces button {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.5rem;
  min-block-size: 2.6rem;
  border: 0;
  border-block-end: 3px solid transparent;
  border-radius: 0;
  padding: 0.45rem 0.8rem;
  background: transparent;
  color: var(--question-muted);
  font: inherit;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.question-admin-workspaces button:hover,
.question-admin-workspaces button:focus-visible {
  background: var(--teal-100);
  color: var(--teal-900);
}

.question-admin-workspaces button[aria-current="page"] {
  border-block-end-color: var(--teal-700);
  color: var(--teal-900);
  font-weight: 800;
}

.question-admin-workspaces b {
  display: inline-grid;
  min-inline-size: 1.55rem;
  min-block-size: 1.45rem;
  place-items: center;
  border-radius: 4px;
  padding-inline: 0.35rem;
  background: #e7ece9;
  color: #52615c;
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
}

.question-admin-workspaces button[aria-current="page"] b {
  background: var(--teal-700);
  color: #fff;
}

.question-list-workspace,
.question-secondary-workspace > .panel,
.question-secondary-workspace > section {
  border: 1px solid var(--question-border);
  border-radius: 8px;
  background: var(--question-surface);
}

.question-list-workspace {
  padding: 0;
  overflow: clip;
}

.question-list-heading {
  margin: 0;
  border-block-end: 1px solid var(--question-border);
  padding: 0.85rem 1rem;
}

.question-list-heading h3 {
  color: var(--teal-900);
  font-size: 1rem;
}

.question-list-heading .hint {
  margin-block-start: 0.2rem;
  font-size: 0.8rem;
}

.question-category-shortcuts {
  margin: 0;
  border: 0;
  border-block-end: 1px solid var(--question-border);
  border-radius: 0;
  padding: 0.75rem 0.85rem;
  background: #f7f9f8;
}

.question-category-shortcuts .question-category-grid {
  display: flex;
  gap: 0.55rem;
  overflow-x: auto;
  padding-block-end: 0.25rem;
  scrollbar-width: thin;
}

.question-category-shortcuts .question-category-card {
  display: grid;
  flex: 0 0 15rem;
  gap: 0.5rem;
  align-content: start;
  border-radius: 6px;
  padding: 0.65rem;
  color: #33413d;
  text-align: start;
  box-shadow: none;
  cursor: pointer;
}

.question-category-shortcuts .question-category-card span,
.question-category-shortcuts .question-category-card small {
  color: var(--question-muted);
  font-size: 0.76rem;
  line-height: 1.4;
}

.question-category-shortcuts .question-category-card:hover,
.question-category-shortcuts .question-category-card:focus-visible {
  border-color: var(--teal-500);
  background: var(--teal-100);
}

.question-review-layout {
  grid-template-columns: minmax(15rem, 18rem) minmax(0, 1fr);
  gap: 0;
}

.question-review-layout.is-tree-collapsed {
  grid-template-columns: minmax(0, 1fr);
}

.question-review-tree-panel {
  inset-block-start: 5.5rem;
  max-block-size: calc(100dvh - 8rem);
  border: 0;
  border-inline-end: 1px solid var(--question-border);
  border-radius: 0;
  padding: 0.85rem;
  background: #f7f9f8;
  box-shadow: none;
  overflow: auto;
}

.question-review-results {
  position: relative;
  min-inline-size: 0;
  padding: 0.85rem;
}

.question-review-filter-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem 1rem;
  margin-block-end: 0.55rem;
}

.question-review-filter-head strong {
  color: var(--teal-900);
  font-size: 0.88rem;
}

.question-review-filter-head span {
  color: var(--question-muted);
  font-size: 0.76rem;
}

.question-filter-grid {
  display: grid;
  grid-template-columns: minmax(10rem, 0.8fr) minmax(11rem, 0.9fr) minmax(16rem, 1.5fr);
  gap: 0.65rem;
  margin: 0 0 0.75rem;
  border: 1px solid var(--question-border);
  border-radius: 6px;
  padding: 0.75rem;
  background: #fafcfb;
}

.question-filter-grid .field {
  min-inline-size: 0;
  margin: 0;
}

.question-filter-grid .field > span {
  color: var(--question-muted);
  font-size: 0.74rem;
}

.question-filter-grid input,
.question-filter-grid select {
  min-block-size: 2.35rem;
  border-color: var(--question-border);
  border-radius: 6px;
  background: #fff;
  font-size: 0.82rem;
}

.question-table-hint {
  margin: 0 0 0.45rem;
  color: var(--question-muted);
  font-size: 0.74rem;
}

.question-preview-table {
  min-inline-size: 0;
  max-inline-size: 100%;
  overflow-x: auto;
  scrollbar-width: thin;
}

.question-preview-table > .question-preview-toolbar,
.question-preview-table > .question-table-viewport,
.question-preview-table > .question-pagination {
  min-inline-size: 90rem;
}

.question-preview-toolbar {
  min-block-size: 2.5rem;
  margin: 0;
  border: 1px solid var(--question-border);
  border-block-end: 0;
  border-radius: 6px 6px 0 0;
  padding: 0.45rem 0.65rem;
  background: #fff;
}

.question-preview-note strong,
.question-preview-note span {
  font-size: 0.78rem;
}

.question-preview-note strong {
  color: #35443f;
}

.question-bulk-actions .danger {
  min-block-size: 2rem;
  border-radius: 6px;
  padding: 0.25rem 0.6rem;
  font-size: 0.76rem;
}

.question-select-cell input,
.compact-check input {
  inline-size: 1rem !important;
  block-size: 1rem !important;
  min-inline-size: 1rem !important;
  min-block-size: 1rem !important;
  margin: 0;
  border-radius: 3px;
  padding: 0 !important;
  background: #fff;
}

body[data-shell="app"] #app-view.question-admin-wide #admin-table-scroll-hint,
body[data-shell="app"] #app-view.question-admin-wide .admin-module-toolbar:empty {
  display: none;
}

.question-table-viewport {
  position: relative;
  max-block-size: min(62dvh, 46rem);
  min-block-size: 13rem;
  overflow: auto;
  border: 1px solid var(--question-border);
  background: #fff;
  scrollbar-gutter: stable both-edges;
}

.question-table-loading {
  position: sticky;
  inset-block-start: 0;
  inset-inline-start: 0;
  z-index: 40;
  display: flex;
  gap: 0.55rem;
  align-items: center;
  justify-content: center;
  inline-size: 100%;
  min-block-size: 2.7rem;
  background: rgba(255, 255, 255, 0.94);
  color: var(--teal-900);
  font-size: 0.8rem;
  font-weight: 750;
}

.question-table-loading span {
  inline-size: 1rem;
  block-size: 1rem;
  border: 2px solid var(--brand-primary-soft-strong);
  border-block-start-color: var(--teal-700);
  border-radius: 50%;
  animation: question-admin-spin 700ms linear infinite;
}

@keyframes question-admin-spin {
  to { transform: rotate(360deg); }
}

.question-management-table {
  inline-size: 100%;
  min-inline-size: 90rem;
  border-collapse: separate;
  border-spacing: 0;
  table-layout: fixed;
  color: #2d3935;
  font-size: 0.79rem;
}

.question-management-table caption {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.question-management-table th,
.question-management-table td {
  border-block-end: 1px solid #e6ebe8;
  padding: 0.62rem 0.7rem;
  vertical-align: middle;
  text-align: start;
}

.question-management-table th {
  position: sticky;
  inset-block-start: 0;
  z-index: 10;
  background: var(--question-header);
  color: #5d6a66;
  font-size: 0.73rem;
  font-weight: 750;
  white-space: nowrap;
}

.question-management-table tbody tr:hover td {
  background: #f7faf8;
}

.question-management-table .question-check-column {
  position: sticky;
  inset-inline-start: 0;
  z-index: 8;
  inline-size: 3.5rem;
  background: #fff;
  text-align: center;
}

.question-management-table th.question-check-column {
  z-index: 18;
  background: var(--question-header);
}

.question-management-table .question-serial-column {
  position: sticky;
  inset-inline-start: 3.5rem;
  z-index: 8;
  inline-size: 9.5rem;
  background: #fff;
}

.question-management-table th.question-serial-column {
  z-index: 18;
  background: var(--question-header);
}

.question-management-table .question-title-column {
  inline-size: 24rem;
}

.question-management-table .question-title-column strong {
  display: -webkit-box;
  max-inline-size: 23rem;
  overflow: hidden;
  color: #24332e;
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1.45;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.question-management-table .question-title-column small {
  display: block;
  margin-block-start: 0.18rem;
  overflow: hidden;
  color: var(--question-muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.question-management-table .question-scope-column {
  inline-size: 18rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.question-management-table .question-updated-column {
  inline-size: 10rem;
  color: var(--question-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.question-management-table .question-action-column {
  position: sticky;
  inset-inline-end: 0;
  z-index: 8;
  inline-size: 14rem;
  background: #fff;
  box-shadow: -1px 0 0 var(--question-border);
}

.question-management-table th.question-action-column {
  z-index: 18;
  background: var(--question-header);
}

.question-management-table code {
  color: #5b6864;
  font-size: 0.74rem;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.question-status {
  display: inline-flex;
  align-items: center;
  min-block-size: 1.55rem;
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 750;
  white-space: nowrap;
}

.question-status.is-active {
  background: #e4f2e9;
  color: #21643c;
}

.question-status.is-inactive {
  background: #f0f1f0;
  color: #6e7773;
}

.question-row-actions {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.25rem;
  align-items: center;
  justify-content: flex-end;
  white-space: nowrap;
}

.question-row-actions > .text-button,
.question-row-menu summary {
  min-block-size: 2rem;
  border: 0;
  border-radius: 5px;
  padding: 0.3rem 0.5rem;
  background: transparent;
  color: var(--teal-800);
  font-size: 0.76rem;
  font-weight: 750;
  cursor: pointer;
}

.question-row-actions > .text-button:hover,
.question-row-actions > .text-button:focus-visible,
.question-row-menu summary:hover,
.question-row-menu summary:focus-visible {
  background: var(--teal-100);
}

.question-row-menu {
  position: relative;
}

.question-row-menu summary {
  list-style: none;
}

.question-row-menu summary::-webkit-details-marker {
  display: none;
}

.question-row-menu[open] > div {
  position: absolute;
  inset-block-start: calc(100% + 0.25rem);
  inset-inline-end: 0;
  z-index: 30;
  display: grid;
  inline-size: 8.5rem;
  overflow: hidden;
  border: 1px solid var(--question-border);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(6, 63, 60, 0.16);
}

.question-row-menu button {
  min-block-size: 2.25rem;
  border: 0;
  padding-inline: 0.7rem;
  background: #fff;
  color: #31403b;
  text-align: start;
  cursor: pointer;
}

.question-row-menu button:hover,
.question-row-menu button:focus-visible {
  background: #f1f6f4;
}

.question-row-menu button.is-danger {
  color: #a23c34;
}

.question-row-menu button.question-delete-button.is-danger {
  min-block-size: 2.25rem;
  border: 0;
  border-radius: 0;
  padding: 0.35rem 0.7rem;
  background: #faf8f7;
  color: #8d625c;
  font-size: 0.76rem;
  box-shadow: none;
}

.question-pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border: 1px solid var(--question-border);
  border-block-start: 0;
  border-radius: 0 0 6px 6px;
  padding: 0.65rem;
  background: #fff;
  color: var(--question-muted);
  font-size: 0.76rem;
}

.question-pagination-controls,
.question-pagination-controls label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.question-pagination-controls select,
.question-pagination-controls button {
  min-block-size: 2rem;
  border: 1px solid var(--question-border);
  border-radius: 5px;
  padding: 0.25rem 0.55rem;
  background: #fff;
  color: #34433e;
  font: inherit;
}

.question-pagination-controls button:not(:disabled) {
  cursor: pointer;
}

.question-pagination-controls button:hover:not(:disabled),
.question-pagination-controls button:focus-visible,
.question-pagination-controls button[aria-current="page"] {
  border-color: var(--teal-700);
  background: var(--teal-700);
  color: #fff;
}

.question-pagination-controls button:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.question-page-number {
  min-inline-size: 2rem;
}

.question-page-ellipsis {
  padding-inline: 0.2rem;
}

.question-load-error {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-block-end: 0.75rem;
  border: 1px solid #e8c5c1;
  border-radius: 6px;
  padding: 0.7rem 0.8rem;
  background: #fff7f6;
  color: #7e332c;
}

.question-load-error div {
  display: grid;
  gap: 0.15rem;
}

.question-load-error span {
  font-size: 0.78rem;
}

.question-secondary-workspace {
  min-inline-size: 0;
}

.question-secondary-workspace > .panel,
.question-secondary-workspace > section {
  margin: 0;
  box-shadow: none;
}

.question-create-dialog {
  inline-size: min(58rem, calc(100dvw - 2rem));
  max-block-size: calc(100dvh - 2rem);
  padding: 0;
}

.question-create-dialog-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  max-block-size: calc(100dvh - 2rem);
  overflow: hidden;
}

.question-create-dialog .modal-head {
  margin: 0;
  border-block-end: 1px solid var(--question-border);
  padding: 0.9rem 1rem;
}

.question-create-dialog [data-question-create-body] {
  overflow: auto;
  padding: 1rem;
}

.question-create-form {
  margin: 0;
  border: 0;
  padding: 0;
  box-shadow: none;
}

.question-create-form > h2 {
  display: none;
}

@media (max-width: 1100px) {
  .question-admin-page-header {
    align-items: stretch;
    flex-direction: column;
  }

  .question-admin-header-actions {
    justify-content: flex-start;
  }

  .question-review-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .question-review-tree-panel {
    position: static;
    max-block-size: 24rem;
    border-inline-end: 0;
    border-block-end: 1px solid var(--question-border);
  }

  .question-filter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .question-filter-grid .field:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 700px) {
  .question-admin-page-header,
  .question-list-heading,
  .question-review-results {
    padding-inline: 0.7rem;
  }

  .question-admin-header-actions,
  .question-list-heading,
  .question-pagination {
    align-items: stretch;
    flex-direction: column;
  }

  .question-admin-header-actions .button,
  .question-list-heading .row-actions,
  .question-list-heading .button {
    inline-size: 100%;
  }

  .question-filter-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .question-filter-grid .field:last-child {
    grid-column: auto;
  }

  .question-preview-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .question-pagination-controls {
    flex-wrap: wrap;
  }

  .question-page-number,
  .question-page-ellipsis {
    display: none;
  }

  .question-create-dialog {
    inline-size: calc(100dvw - 1rem);
  }
}

.question-editor-modal-content,
.question-editor-dialog .question-media-box {
  min-inline-size: 0;
}

.question-editor-dialog .question-review-form,
.question-permission-dialog .practice-permission-form {
  margin-block-start: 0;
}

.question-permission-dialog .practice-permission-panel {
  border: 0;
  padding: 0;
  box-shadow: none;
}

@media (max-width: 1100px) {
  .question-review-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .question-review-tree-panel {
    position: static;
    max-block-size: 38dvh;
  }
}

@media (max-width: 768px) {
  .question-tree-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .question-tree-heading .text-button {
    align-self: flex-start;
  }

  .question-preview-table table {
    min-inline-size: 76rem;
  }

  .question-editor-dialog,
  .question-permission-dialog {
    inline-size: calc(100dvw - 1.5rem);
  }

  .question-delete-button {
    min-block-size: 2.5rem;
  }
}

.question-review-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.question-review-form .full {
  grid-column: 1 / -1;
}

.question-review-form textarea {
  resize: vertical;
}

.question-review-toolbar {
  margin-block: 0.85rem;
}

.media-library-panel,
.question-media-box {
  display: grid;
  gap: 0.75rem;
  min-inline-size: 0;
}

.media-upload-form {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: end;
}

.media-upload-form .full {
  grid-column: 1 / -1;
}

.media-upload-note {
  margin: 0;
  padding: 0.65rem 0.8rem;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 8px;
  background: rgba(37, 99, 235, 0.08);
  color: #1e3a8a;
  font-size: 0.92rem;
}

.video-resource-panel {
  display: grid;
  gap: 0.85rem;
}

.directory-test-summary {
  display: grid;
  grid-template-columns: repeat(3, max-content) minmax(0, 1fr);
  gap: 0.65rem;
  align-items: center;
}

.directory-test-summary .hint {
  margin: 0;
}

.video-resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 0.85rem;
}

.video-resource-card {
  display: grid;
  gap: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.8rem;
  background: #fff;
}

.video-resource-card video {
  inline-size: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  background: #0f1f1f;
}

.video-resource-card strong {
  color: var(--navy);
}

.video-resource-card p {
  color: var(--muted);
}

.practice-permission-panel {
  display: grid;
  gap: 0.75rem;
  min-inline-size: 0;
}

.practice-permission-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.practice-permission-form .full {
  grid-column: 1 / -1;
}

.checkbox-fieldset {
  border: 0;
  padding: 0;
  margin: 0;
}

.checkbox-fieldset legend {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
  margin-block-end: 0.35rem;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.45rem;
}

.check-option {
  min-block-size: 48px;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  font-weight: 800;
}

.check-option input {
  accent-color: var(--teal-700);
}

.activation-required {
  align-self: end;
}

.tag-remove {
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  text-decoration: underline;
}

.compact-metrics {
  margin-block-end: 1rem;
}

.role-workspace,
.role-panel,
.role-action-form,
.role-management-panel {
  min-inline-size: 0;
}

.role-summary {
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
}

.role-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 0.8rem;
  margin-block: 1rem;
}

.admin-capacity-check {
  display: grid;
  gap: 0.65rem;
  min-inline-size: 0;
  padding-block: 0.2rem;
}

.admin-capacity-check > .field-help {
  margin: 0;
}

.admin-capacity-override {
  display: grid;
  gap: 0.75rem;
  padding: 0.85rem;
  border: 1px solid #d98b33;
  border-radius: 0.8rem;
  background: #fff8e8;
  color: #6f3f08;
}

.admin-capacity-override[hidden] {
  display: none;
}

.admin-capacity-warning strong {
  display: block;
  margin-block-end: 0.35rem;
  color: #8a3f00;
}

.admin-capacity-warning ul {
  display: grid;
  gap: 0.25rem;
  margin: 0;
  padding-inline-start: 1.15rem;
}

.admin-capacity-override .field-help,
.admin-capacity-override small {
  color: #704916;
}

.admin-capacity-override textarea {
  inline-size: 100%;
  min-block-size: 5.5rem;
  resize: vertical;
}

.role-action-form input,
.role-action-form select,
.role-action-form textarea,
.role-form-grid input,
.role-form-grid select,
.role-form-grid textarea,
[data-teacher-makeup] {
  min-block-size: 48px;
  inline-size: 100%;
}

.temporary-password {
  margin-block: 1rem;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
  overflow-wrap: anywhere;
  font-family: Consolas, "Courier New", monospace;
  font-size: 1.05rem;
  font-weight: 900;
}

.credential-notification-status:not(:empty) {
  margin-block: 0.65rem;
  padding: 0.7rem 0.85rem;
  border-radius: 0.65rem;
  background: #f1f5f4;
  color: var(--muted);
  font-weight: 700;
}

.credential-notification-status[data-tone="success"] {
  background: #edf8f4;
  color: var(--teal-900);
}

.credential-notification-status[data-tone="error"] {
  background: #fff1ef;
  color: #8e2f24;
}

.split-makeup-box,
.makeup-detail-box {
  margin-block: 1rem;
}

.course-student-preview {
  margin-block: 0.75rem 1rem;
}

.course-tuition-summary {
  display: grid;
  gap: 1rem;
  margin-block-start: 1rem;
}

.course-tuition-summary .billing-records {
  margin-block: 0;
}

.split-row {
  min-inline-size: 0;
  border: 1px solid rgba(31, 41, 55, 0.14);
  border-radius: var(--radius);
  padding: 0.85rem;
  display: grid;
  gap: 0.55rem;
  background: rgba(255, 255, 255, 0.76);
}

.split-row legend {
  padding-inline: 0.35rem;
  font-weight: 800;
}

.split-row.is-conflict {
  border-color: #b42318;
  background: #fff4f2;
}

.danger-tag,
.error-text {
  color: #b42318;
  font-weight: 800;
}

.split-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 0.75rem;
}

.split-preview-box {
  margin-block: 1rem;
}

.member-admin .mini-form input,
.member-admin .mini-form select,
.course-admin .mini-form input,
.course-admin .mini-form select,
.course-admin .mini-form textarea,
#my-student-form input {
  min-block-size: 2.75rem;
}

#member-permission-box .tag {
  margin-block: 0.15rem;
}

@media (max-width: 980px) {
  .auth-layout,
  .login-shell,
  .grid.two,
  .admin-grid,
  .metrics,
  .feature-grid,
  .site-map-grid {
    grid-template-columns: 1fr;
  }

  .page-head,
  .site-header,
  .info-band {
    align-items: flex-start;
    flex-direction: column;
  }

  .intro-panel {
    min-block-size: 30rem;
  }

  .login-page {
    align-content: start;
  }

  .login-page-copy {
    min-block-size: 16rem;
  }

  .floating-service {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-inline-size: 78rem;
    margin: 1rem auto 0;
    padding-inline: 1rem;
  }

  .paper-admin-layout {
    grid-template-columns: 1fr;
  }

  .paper-export-form {
    grid-template-columns: 1fr 1fr;
  }

  .paper-export-form .check-row,
  .paper-export-form .button {
    min-block-size: 3rem;
  }

  .attempt-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  body {
    padding-block-end: 4.8rem;
  }

  .member-admin-action-workflow > summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.2rem;
    min-block-size: 3.5rem;
  }

  .member-admin-action-workflow > summary span {
    text-align: start;
  }

  .member-admin-back-top {
    inset-block-end: calc(5.25rem + env(safe-area-inset-bottom));
  }

  .paper-export-form {
    grid-template-columns: 1fr;
  }

  .paper-list-export-toolbar {
    align-items: stretch;
  }

  .paper-list-export-toolbar .field,
  .paper-list-export-toolbar .button {
    flex: 1 1 calc(50% - 0.65rem);
  }

  main {
    --page-inline-gutter: 0.8rem;
  }

  main,
  .site-header {
    padding-inline: 0.8rem;
  }

  .intro-panel h1 {
    font-size: 2.2rem;
  }

  .login-page {
    min-block-size: 0;
  }

  .login-page-copy {
    min-block-size: 12rem;
    padding: 1.25rem;
  }

  .login-page-copy h1 {
    font-size: 2.25rem;
  }

  .hero-strip,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .inline-form,
  .head-actions,
  .panel-title-row,
  .floating-service {
    align-items: stretch;
    flex-direction: column;
    inline-size: 100%;
  }

  .nav {
    inline-size: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-block-end: 0.2rem;
    scrollbar-width: thin;
  }

  .nav .tab {
    flex: 0 0 auto;
    min-block-size: 48px;
    white-space: nowrap;
  }

  .floating-service {
    display: grid;
    grid-template-columns: 1fr;
  }

  .attempt-summary {
    grid-template-columns: 1fr;
  }

  .role-form-grid,
  .role-summary {
    grid-template-columns: 1fr;
  }

  .role-workspace .panel,
  .role-workspace .learning-section,
  .role-management-panel {
    padding: 0.8rem;
  }

  .role-workspace .button,
  .role-workspace .text-button,
  .role-management-panel .button,
  .role-management-panel .text-button {
    min-block-size: 48px;
  }

  .detail-head {
    flex-direction: column;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  .inline-management-form {
    flex-direction: column;
    align-items: stretch;
  }

  .inline-management-form select,
  .inline-management-form input {
    min-inline-size: 0;
    inline-size: 100%;
  }

  .learning-node-toolbar,
  .learning-node-layout,
  .learning-node-form,
  .learning-node-parent-picker,
  .lesson-word-import-form,
  .lesson-import-directory,
  .paper-rule-row,
  .question-generation-form,
  .question-review-form,
  .media-upload-form,
  .practice-permission-form {
    grid-template-columns: 1fr;
  }

  .prompt-template-grid,
  .question-template-scope {
    grid-template-columns: 1fr;
  }

  .lesson-import-directory .full,
  .media-upload-form .full,
  .practice-permission-form .full {
    grid-column: 1;
  }

  .directory-test-summary {
    grid-template-columns: 1fr;
  }

  .learning-node-toolbar,
  .learning-node-detail-panel .row-actions,
  .learning-node-form .row-actions,
  .lesson-word-import-panel .panel-title-row {
    align-items: stretch;
    flex-direction: column;
  }

  .lesson-word-import-panel .panel-title-row .row-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    inline-size: 100%;
  }

  .lesson-word-import-panel .panel-title-row .row-actions > * {
    min-inline-size: 0;
    inline-size: 100%;
  }

  .learning-node-detail-panel .detail-head .row-actions,
  .learning-node-form > .row-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
    inline-size: 100%;
  }

  .learning-node-detail-panel .detail-head .row-actions > *,
  .learning-node-form > .row-actions > * {
    min-inline-size: 0;
    inline-size: 100%;
  }

  .learning-node-toolbar .field {
    min-inline-size: 0;
    inline-size: 100%;
  }

  .learning-node-tree-panel {
    max-block-size: 45dvh;
  }

  .learning-node-tree-panel > h3 {
    inset-block-start: -0.8rem;
    margin-block-start: -0.8rem;
    padding-block-start: 0.8rem;
  }

  .learning-tree-row {
    grid-template-columns: 2rem minmax(0, 1fr) auto;
  }

  .learning-tree-row .tag {
    grid-column: 2;
    justify-self: start;
  }

  .learning-node-move-button {
    grid-column: 3;
    grid-row: 1;
  }

  .learning-node-move-targets,
  .learning-node-move-placements {
    grid-template-columns: 1fr;
  }

  #learning-node-move-dialog {
    inline-size: calc(100% - 1rem);
    max-block-size: calc(100dvh - 1rem);
  }

  .learning-node-detail-panel,
  .learning-node-tree-panel {
    padding: 0.8rem;
  }

  .lesson-word-import-form .button,
  .lesson-word-import-panel .button {
    min-block-size: 48px;
  }

  .module-head {
    flex-direction: column;
  }

  .platform-hero {
    grid-template-columns: 1fr;
    padding: 0.9rem;
  }

  .platform-hero::after {
    inline-size: 11rem;
    opacity: 0.45;
  }

  .hero-quick-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-quick-grid button {
    min-inline-size: 0;
  }

  .home-search {
    align-items: stretch;
    flex-direction: column;
  }

  .home-search input,
  .home-search .button {
    inline-size: 100%;
    min-block-size: 48px;
  }

  .learning-section,
  .practice-structure,
  .study-dashboard {
    padding: 0.8rem;
  }

  .home-course-grid,
  .study-dashboard,
  .voice-topic-grid {
    grid-template-columns: 1fr;
  }

  .course-cover-card {
    min-block-size: 0;
  }

  .course-cover-media {
    aspect-ratio: 16 / 8;
  }

  .practice-entry-banner {
    align-items: stretch;
    flex-direction: column;
  }

  .module-entry-grid,
  .module-entry-grid.compact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.55rem;
  }

  .module-entry-card {
    min-block-size: 6.4rem;
    padding: 0.65rem;
  }

  .module-entry-card strong {
    font-size: 0.9rem;
  }

  .module-entry-card span {
    font-size: 0.78rem;
  }

  .practice-breadcrumb,
  .practice-node-row {
    margin-inline: -0.2rem;
    padding-inline: 0.2rem;
  }

  .practice-node-chip {
    min-block-size: 48px;
  }

  .practice-catalog-grid {
    grid-template-columns: 1fr;
  }

  .practice-student-selector {
    grid-template-columns: 1fr;
  }

  .catalog-card {
    min-block-size: auto;
  }

  .practice-focus-actions {
    grid-template-columns: 1fr;
  }

  .study-card {
    min-block-size: 6.8rem;
  }

  .practice-player-top,
  .practice-player-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .practice-player-actions .button,
  .practice-player-top .button {
    inline-size: 100%;
    min-block-size: 48px;
  }

  .practice-question-card {
    padding: 0.85rem;
  }

  .bottom-nav {
    position: fixed;
    z-index: 22;
    inset-inline: 0;
    inset-block-end: 0;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.25rem;
    padding: 0.45rem max(0.6rem, env(safe-area-inset-left)) calc(0.45rem + env(safe-area-inset-bottom)) max(0.6rem, env(safe-area-inset-right));
    border-block-start: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 -10px 28px rgba(6, 63, 60, 0.1);
  }

  .bottom-nav button {
    min-block-size: 2.75rem;
    border: 0;
    border-radius: var(--radius);
    background: transparent;
    color: var(--muted);
    font-weight: 800;
  }

  .bottom-nav button.is-active {
    background: var(--teal-100);
    color: var(--teal-900);
  }
}

@media (max-width: 768px) {
  body[data-shell="app"] .site-header,
  body[data-shell="app"].shell-menu-open .site-header {
    position: static;
    inline-size: 100%;
    block-size: auto;
    transform: none;
    gap: 0.65rem;
    padding: 0.7rem 0.8rem;
  }

  body[data-shell="app"] .brand {
    inline-size: 100%;
    padding: 0 0 0.65rem;
  }

  body[data-shell="app"] .nav {
    display: flex;
    flex-wrap: nowrap;
    inline-size: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0 0 0.2rem;
  }

  body[data-shell="app"] .nav-section-label {
    display: none;
  }

  body[data-shell="app"] .nav .tab {
    flex: 0 0 auto;
    min-block-size: 2.65rem;
    border-inline-start: 0;
    border-block-end: 3px solid transparent;
    white-space: nowrap;
  }

  body[data-shell="app"] .nav .tab.is-active {
    border-inline-start-color: transparent;
    border-block-end-color: #e9823d;
  }

  .shell-menu-button {
    display: none;
  }
}

/* 2026-07-15: two lightweight in-site pinyin games reuse the normal practice engine. */
.practice-player.is-mini-game {
  inline-size: min(100%, 54rem);
}

.practice-player.is-mini-game .practice-question-card {
  overflow: hidden;
  border-color: color-mix(in srgb, var(--teal-700) 28%, var(--line));
  padding: 0;
  background: #fffdf8;
}

.practice-mini-game {
  display: grid;
  gap: 1.2rem;
  padding: clamp(1rem, 3vw, 2rem);
}

.practice-mini-game-pinyin_word {
  border-block-start: 0.7rem solid #f4ad3d;
  background: linear-gradient(180deg, #fff8dc, #fffdf8 42%);
}

.practice-mini-game-listen_pinyin {
  border-block-start: 0.7rem solid var(--teal-500);
  background: linear-gradient(180deg, #ecfaf7, #ffffff 42%);
}

.practice-game-heading {
  text-align: center;
}

.practice-game-heading h4 {
  margin: 0.2rem 0 0;
  color: var(--teal-900);
  font-size: clamp(1.15rem, 3vw, 1.65rem);
  line-height: 1.35;
}

.practice-game-audio-zone,
.practice-game-pinyin-zone,
.practice-game-pinyin {
  min-block-size: 7.5rem;
  display: grid;
  place-items: center;
}

.practice-game-pinyin.is-long {
  font-size: clamp(2.75rem, 7vw, 4.5rem);
}

.practice-game-pinyin-zone {
  position: relative;
}

.practice-game-speaker {
  min-inline-size: 10rem;
  min-block-size: 8rem;
  display: grid;
  place-items: center;
  gap: 0.2rem;
  border: 2px solid #bcded8;
  border-radius: 1.4rem;
  padding: 1rem 1.4rem;
  background: #ffffff;
  color: var(--teal-900);
  box-shadow: 0 12px 28px rgba(6, 63, 60, 0.12);
  cursor: pointer;
}

.practice-game-speaker > span {
  font-size: 3.1rem;
  line-height: 1;
}

.practice-game-speaker small {
  color: var(--muted);
}

.practice-game-speaker:hover,
.practice-game-speaker:focus-visible,
.practice-game-speaker.is-playing {
  border-color: var(--teal-500);
  background: var(--teal-100);
  transform: translateY(-2px);
}

.practice-speech-status,
.lesson-flashcard-speech-status {
  margin: 0;
  border: 1px solid #e7c36a;
  border-radius: 0.75rem;
  padding: 0.7rem 0.85rem;
  background: #fff8dc;
  color: #684b00;
  line-height: 1.55;
}

.practice-speech-retry {
  justify-self: center;
  min-block-size: 44px;
}

.practice-game-pinyin {
  inline-size: 100%;
  color: #fff;
  border: 0.65rem solid #f4ad3d;
  border-radius: 0.35rem;
  padding: 1rem 4.75rem;
  background: #477a3f;
  font-family: "Segoe UI", "Noto Sans", sans-serif;
  font-size: clamp(3rem, 10vw, 6.5rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.1;
  text-align: center;
  text-wrap: balance;
}

.practice-game-inline-speaker {
  position: absolute;
  inset-block-start: 1.25rem;
  inset-inline-end: 1.25rem;
  inline-size: 3.25rem;
  block-size: 3.25rem;
  display: grid;
  place-items: center;
  border: 2px solid rgba(255, 255, 255, 0.78);
  border-radius: 999px;
  background: rgba(36, 75, 31, 0.82);
  color: #fff;
  font-size: 1.45rem;
  cursor: pointer;
}

.practice-game-inline-speaker:hover,
.practice-game-inline-speaker:focus-visible,
.practice-game-inline-speaker.is-playing {
  background: #244b1f;
  border-color: #fff;
  transform: scale(1.05);
}

.practice-game-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.7rem, 2vw, 1rem);
}

.practice-game-option {
  position: relative;
  min-inline-size: 0;
  min-block-size: 8.5rem;
  display: grid;
  place-items: center;
  border: 2px solid #cfdedb;
  border-radius: 1rem;
  padding: 1rem;
  background: #fff;
  color: var(--ink);
  box-shadow: 0 8px 20px rgba(17, 51, 48, 0.08);
  cursor: pointer;
}

.practice-game-option > span {
  position: absolute;
  inset-block-start: 0.55rem;
  inset-inline-start: 0.65rem;
  display: grid;
  place-items: center;
  inline-size: 1.75rem;
  block-size: 1.75rem;
  border-radius: 999px;
  background: var(--soft);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.practice-game-option strong {
  min-inline-size: 0;
  font-size: clamp(1.7rem, 6vw, 3.2rem);
  font-weight: 500;
  line-height: 1.2;
  overflow-wrap: anywhere;
  text-align: center;
}

.practice-game-option:hover,
.practice-game-option:focus-visible,
.practice-game-option.is-selected {
  border-color: var(--teal-500);
  background: var(--teal-100);
  box-shadow: 0 10px 26px rgba(6, 63, 60, 0.15);
}

.practice-game-option.is-selected::after {
  content: "已選";
  position: absolute;
  inset-block-start: 0.65rem;
  inset-inline-end: 0.7rem;
  color: var(--teal-900);
  font-size: 0.78rem;
  font-weight: 800;
}

.practice-game-challenge {
  justify-self: center;
  min-inline-size: min(100%, 22rem);
  min-block-size: 3.7rem;
  border: 0;
  border-radius: 0.8rem;
  padding: 0.8rem 1.5rem;
  background: #f4ad3d;
  color: #422b06;
  font-size: 1.1rem;
  font-weight: 900;
  box-shadow: 0 10px 24px rgba(181, 112, 14, 0.18);
  cursor: pointer;
}

.practice-share-fab {
  min-block-size: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border: 0;
  border-radius: var(--radius);
  padding: 0.6rem 0.85rem;
  background: #1769e0;
  color: #fff;
  -webkit-text-fill-color: currentColor;
  box-shadow: 0 6px 16px rgba(12, 64, 140, 0.2);
  cursor: pointer;
  transition:
    transform 0.16s ease,
    background-color 0.16s ease,
    box-shadow 0.16s ease,
    color 0.16s ease;
}

.practice-player-top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
}

.practice-share-fab .share-button-icon {
  inline-size: 1.45rem;
  block-size: 1.45rem;
  flex: 0 0 auto;
  overflow: visible;
  color: inherit;
}

.practice-share-fab > strong {
  line-height: 1.2;
}

.practice-share-fab:hover:not(:disabled),
.practice-share-fab:focus-visible:not(:disabled) {
  background: #0d55bf;
  color: #fff;
  -webkit-text-fill-color: currentColor;
  transform: translateY(-2px);
}

.practice-share-fab:active:not(:disabled) {
  background: #08489f;
  color: #fff;
  -webkit-text-fill-color: currentColor;
  transform: translateY(1px);
}

.practice-share-fab:disabled {
  background: #536f96;
  color: #fff;
  -webkit-text-fill-color: currentColor;
  opacity: 1;
  box-shadow: none;
  transform: none;
  cursor: not-allowed;
}

@media (max-width: 768px) {
  .practice-mini-game {
    gap: 0.9rem;
    padding: 0.9rem;
  }

  .practice-game-audio-zone,
  .practice-game-pinyin-zone,
  .practice-game-pinyin {
    min-block-size: 6.5rem;
  }

  .practice-game-inline-speaker {
    inset-block-start: 0.8rem;
    inset-inline-end: 0.8rem;
  }

  .practice-game-pinyin {
    padding-inline: 4rem;
  }

  .practice-game-pinyin.is-long {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .practice-game-speaker {
    min-block-size: 6.5rem;
  }

  .practice-game-option {
    min-block-size: 7rem;
    padding: 0.8rem 0.55rem;
  }

  .practice-game-option strong {
    font-size: clamp(1.45rem, 8vw, 2.3rem);
  }

  .practice-share-fab {
    min-block-size: 48px;
    padding: 0.65rem 0.85rem;
  }

  .practice-player-top-actions {
    inline-size: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .practice-player-top-actions .button,
  .practice-player-top-actions .practice-share-fab {
    inline-size: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .practice-game-speaker,
  .practice-game-inline-speaker,
  .practice-game-option,
  .practice-game-challenge,
  .practice-share-fab {
    transition: none;
    transform: none !important;
  }
}

/* Three independent question types: sentence fill, sentence choice and matching. */
.question-type-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.question-type-panel > legend {
  padding-inline: 0.4rem;
  color: var(--teal-900);
  font-weight: 800;
}

.question-type-panel > .field:has(textarea),
.question-type-panel > .hint {
  grid-column: 1 / -1;
}

.sentence-fill-fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.sentence-fill-fieldset > legend {
  margin-block-end: 0.7rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.sentence-fill-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  font-size: clamp(1.05rem, 2.5vw, 1.35rem);
  font-weight: 700;
  line-height: 2.2;
}

.sentence-inline-blank {
  display: inline-flex;
  align-items: center;
}

.sentence-inline-blank input {
  inline-size: clamp(7rem, 22vw, 12rem);
  min-block-size: 3rem;
  padding: 0.45rem 0.65rem;
  border: 2px solid var(--teal-700);
  border-radius: 0.45rem;
  background: #fffef7;
  font-size: 1rem;
  text-align: center;
}

.sentence-fill-fallback {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  inline-size: 100%;
}

.matching-exercise {
  margin-block-start: 1rem;
}

.matching-instruction {
  margin: 0 0 0.9rem;
  color: var(--muted);
}

.matching-layout {
  display: grid;
  grid-template-columns: minmax(14rem, 0.9fr) minmax(18rem, 1.1fr);
  gap: 1rem;
  align-items: start;
}

.matching-items,
.matching-targets {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.matching-items h4,
.matching-targets h4 {
  margin: 0 0 0.75rem;
  color: var(--teal-900);
}

.matching-card-grid,
.matching-target-grid {
  display: grid;
  gap: 0.7rem;
}

.matching-card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.matching-target-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.matching-item-card,
.matching-target-card {
  min-inline-size: 0;
  padding: 0.7rem;
  border: 2px solid #b8d9d5;
  border-radius: var(--radius);
  background: var(--paper);
}

.matching-item-card[draggable="true"] {
  cursor: grab;
}

.matching-item-card.is-selected {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 188, 0, 0.2);
}

.matching-item-card.is-assigned {
  border-color: var(--teal-700);
}

.matching-part-content {
  display: grid;
  gap: 0.55rem;
  justify-items: center;
  margin-block-end: 0.55rem;
  text-align: center;
}

.matching-part-content img,
.matching-part-content video {
  display: block;
  inline-size: 100%;
  max-block-size: 10rem;
  object-fit: contain;
  border-radius: 0.4rem;
  background: #eef7f5;
}

.matching-part-content audio {
  inline-size: 100%;
  min-inline-size: 0;
}

.matching-item-card button,
.matching-target-card > button {
  inline-size: 100%;
  min-block-size: 3rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--teal-700);
  border-radius: 0.4rem;
  background: var(--paper);
  color: var(--teal-900);
  font-weight: 800;
  cursor: pointer;
}

.matching-target-card > button {
  background: var(--teal-900);
  color: white;
}

.matching-assigned-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  min-block-size: 2.2rem;
  margin-block-start: 0.65rem;
}

.matching-assigned-list span {
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  background: var(--teal-100);
  color: var(--teal-900);
  font-size: 0.86rem;
  font-weight: 700;
}

.matching-assigned-list .is-empty {
  background: transparent;
  color: var(--muted);
  font-weight: 400;
}

.matching-clear {
  margin-block-start: 0.8rem;
}

.matching-line-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin-block-start: 0.9rem;
  padding: 0.8rem;
  border-inline-start: 4px solid var(--teal-700);
  background: var(--teal-100);
}

.matching-line-summary span {
  padding: 0.4rem 0.55rem;
  border-radius: 0.35rem;
  background: var(--paper);
  text-align: center;
}

.matching-line-summary b {
  color: var(--coral);
}

.matching-result-list {
  display: grid;
  gap: 0.45rem;
  margin-block: 0.75rem;
}

.paper-preview-matching {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-block: 0.8rem;
}

.paper-preview-matching > div {
  display: grid;
  gap: 0.5rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  background: var(--soft);
}

.paper-preview-matching > div > span {
  display: block;
  padding: 0.55rem;
  border-radius: 0.35rem;
  background: var(--paper);
}

.paper-preview-matching .matching-part-content {
  margin: 0;
}

.matching-result-row {
  display: grid;
  grid-template-columns: minmax(6rem, 1fr) minmax(6rem, 1fr) minmax(8rem, 1.2fr);
  gap: 0.6rem;
  margin: 0;
  padding: 0.6rem;
  border-radius: 0.4rem;
  background: var(--soft);
}

@media (max-width: 760px) {
  .question-type-panel,
  .matching-layout,
  .matching-card-grid,
  .matching-target-grid,
  .matching-line-summary,
  .paper-preview-matching,
  .matching-result-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .matching-item-card,
  .matching-target-card {
    padding: 0.8rem;
  }

  .sentence-fill-line {
    align-items: flex-start;
  }

  .sentence-inline-blank,
  .sentence-inline-blank input {
    inline-size: 100%;
  }
}

@media (pointer: coarse) {
  .matching-item-card button,
  .matching-target-card > button,
  .sentence-inline-blank input {
    min-block-size: 3.25rem;
  }
}

body[data-shell="app"] .page-head > div:not(.head-actions) {
  min-inline-size: 0;
}

body[data-shell="app"] #page-context-line {
  margin: 0.25rem 0 0;
  color: #337368;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

@media (min-width: 901px) and (max-width: 1200px) {
  .textbook-group > .home-course-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 621px) and (max-width: 900px) {
  .textbook-group > .home-course-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .textbook-group > .home-course-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    overflow-x: visible;
    padding-block-end: 0;
    scroll-snap-type: none;
    scrollbar-width: auto;
  }

  .textbook-group > .home-course-grid .course-cover-card {
    min-inline-size: 0;
    inline-size: 100%;
    scroll-snap-align: none;
  }

  .textbook-group > .home-course-grid .course-cover-media {
    aspect-ratio: 12 / 7;
  }

  .textbook-group > .home-course-grid .course-cover-copy strong,
  .textbook-group > .home-course-grid .course-cover-copy small,
  .textbook-group > .home-course-grid .course-cover-copy em {
    display: -webkit-box;
    overflow: hidden;
    overflow-wrap: anywhere;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  body[data-shell="app"] #page-context-line {
    max-inline-size: 17rem;
    font-size: 0.74rem;
  }
}

.external-practice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 0.85rem;
  min-inline-size: 0;
}

.external-practice-browser,
.external-practice-groups,
.external-practice-group {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.external-practice-home-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: clamp(15rem, 23vw, 18rem);
  gap: 0.85rem;
  min-inline-size: 0;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  padding: 0.1rem 0.15rem 0.65rem;
  scroll-padding-inline: 0.15rem;
  scroll-snap-type: inline proximity;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.external-practice-home-row > .external-practice-card {
  inline-size: 100%;
  scroll-snap-align: start;
}

.external-practice-filter-bar {
  display: flex;
  align-items: end;
  flex-wrap: wrap;
  gap: 0.75rem;
  border: 1px solid rgba(6, 63, 60, 0.12);
  border-radius: var(--radius);
  padding: 0.8rem;
  background: #f8fdfb;
}

.external-practice-filter-bar label {
  display: grid;
  flex: 1 1 12rem;
  gap: 0.3rem;
  min-inline-size: 0;
}

.external-practice-filter-bar label > span,
.external-practice-server-cover > span {
  color: var(--teal-900);
  font-size: 0.78rem;
  font-weight: 800;
}

.external-practice-filter-bar select,
.external-practice-server-cover select {
  min-block-size: 48px;
  inline-size: 100%;
}

.external-practice-filter-bar > .tag {
  margin-block-end: 0.6rem;
}

.external-practice-group-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border-block-end: 1px solid var(--line);
  padding-block-end: 0.5rem;
}

.external-practice-group-heading h4,
.external-practice-group-heading span {
  margin: 0;
}

.external-practice-group-heading span {
  color: var(--muted);
  font-size: 0.8rem;
}

.external-practice-card {
  display: grid;
  grid-template-rows: auto 1fr;
  min-inline-size: 0;
  overflow: hidden;
  border: 1px solid rgba(6, 63, 60, 0.14);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.external-practice-cover {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, #dff5ef, #fff1df 58%, #e4eaff);
}

.external-practice-cover img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
}

.external-practice-cover.is-contain img,
.external-practice-cover-preview.is-contain img {
  object-fit: contain;
}

.external-practice-cover.is-original img,
.external-practice-cover-preview.is-original img {
  inline-size: auto;
  block-size: auto;
  max-inline-size: 100%;
  max-block-size: 100%;
  object-fit: contain;
}

.external-practice-cover.is-cover img,
.external-practice-cover-preview.is-cover img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
}

.external-practice-cover > span {
  display: grid;
  place-items: center;
  inline-size: 3.25rem;
  block-size: 3.25rem;
  border-radius: 0.95rem;
  background: rgba(255, 255, 255, 0.88);
  color: var(--teal-900);
  font-size: 1.4rem;
  font-weight: 900;
  box-shadow: 0 12px 28px rgba(17, 51, 48, 0.12);
}

.external-practice-cover b {
  position: absolute;
  inset-inline-start: 0.7rem;
  inset-block-end: 0.7rem;
  border-radius: 999px;
  padding: 0.28rem 0.6rem;
  background: rgba(6, 63, 60, 0.88);
  color: #fff;
  font-size: 0.72rem;
}

.external-practice-copy {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-inline-size: 0;
  padding: 0.9rem;
}

.external-practice-copy strong {
  color: var(--teal-900);
  font-size: 1.02rem;
}

.external-practice-knowledge-tag {
  justify-self: start;
}

.external-practice-copy p,
.external-practice-copy small {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.external-practice-copy .button {
  margin-block-start: auto;
  min-block-size: 48px;
}

.public-external-practice {
  display: grid;
  gap: 1rem;
}

.admin-table-custom-host {
  min-inline-size: 0;
}

#project-task-form {
  scroll-margin-block-start: 7rem;
}

.external-practice-admin,
.external-practice-admin-list {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.external-practice-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.external-practice-form .field,
.external-practice-form .panel-title-row,
.external-practice-form .row-actions {
  margin: 0;
}

.external-practice-form .full {
  grid-column: 1 / -1;
}

.external-practice-knowledge-field,
.external-practice-knowledge-field > label {
  display: grid;
  gap: 0.35rem;
  min-inline-size: 0;
}

.external-practice-platform-field,
.external-practice-platform-field > label,
.external-practice-platform-custom,
.external-practice-platform-custom > label {
  display: grid;
  gap: 0.35rem;
  min-inline-size: 0;
}

.external-practice-platform-custom {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  margin-block-start: 0.45rem;
}

.external-practice-platform-custom .button {
  min-block-size: 48px;
  white-space: nowrap;
}

.external-practice-platform-manager {
  display: grid;
  gap: 0.85rem;
}

.external-platform-list {
  display: grid;
  gap: 0.65rem;
}

.external-platform-row {
  min-inline-size: 0;
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) minmax(7rem, 0.35fr) minmax(8rem, 0.4fr) auto;
  align-items: end;
  gap: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  background: #fff;
}

.external-platform-row > label,
.external-platform-row > div {
  min-inline-size: 0;
  display: grid;
  gap: 0.3rem;
}

.external-platform-row span,
.external-platform-row small {
  color: var(--muted);
  font-size: 0.82rem;
}

.external-platform-row.is-system {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  background: #f8fcfb;
}

.external-platform-row .button {
  min-block-size: 48px;
  white-space: nowrap;
}

.external-practice-cover-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(13rem, 20rem);
  gap: 0.65rem 0.8rem;
}

.external-practice-cover-field > span,
.external-practice-cover-field > .hint {
  grid-column: 1 / -1;
}

.external-practice-cover-source,
.external-practice-cover-source-panel {
  display: grid;
  gap: 0.4rem;
  min-inline-size: 0;
}

.external-practice-cover-source > span,
.external-practice-cover-source-panel label > span {
  color: var(--teal-900);
  font-size: 0.78rem;
  font-weight: 800;
}

.external-practice-cover-source select,
.external-practice-cover-source-panel input,
.external-practice-cover-source-panel select {
  inline-size: 100%;
  min-block-size: 48px;
}

.external-practice-cover-source-panel input.visually-hidden {
  inline-size: 1px;
  block-size: 1px;
  min-block-size: 1px;
}

.external-practice-cover-source small,
.external-practice-cover-source-panel .hint,
.external-practice-server-cover small {
  color: var(--muted);
  line-height: 1.45;
}

.external-practice-cover-source-panel {
  align-content: start;
  border: 1px solid rgba(6, 63, 60, 0.12);
  border-radius: 0.8rem;
  padding: 0.7rem;
  background: #f8fdfb;
}

.external-practice-cover-source-panel[hidden] {
  display: none;
}

.external-practice-cover-chooser {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.55rem;
  align-items: center;
  min-inline-size: 0;
}

.external-practice-cover-chooser.is-upload {
  grid-template-columns: auto minmax(0, 1fr);
}

.external-practice-file-button {
  min-block-size: 48px;
  white-space: nowrap;
}

.external-practice-cover-status {
  grid-column: 1 / -1;
  min-block-size: 1.4em;
  margin: 0;
  color: var(--teal-700);
  font-size: 0.86rem;
  font-weight: 750;
}

.external-practice-cover-status.is-error {
  color: var(--danger);
}

.external-practice-cover-field progress {
  inline-size: 100%;
  block-size: 0.75rem;
  accent-color: var(--teal-700);
}

.external-practice-server-cover {
  display: grid;
  gap: 0.3rem;
  min-inline-size: 0;
}

.external-practice-cover-preview {
  position: relative;
  display: grid;
  min-inline-size: 0;
  max-inline-size: 100%;
  grid-column: 2;
  grid-row: 2 / span 2;
  place-items: center;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px dashed rgba(6, 63, 60, 0.3);
  border-radius: 0.9rem;
  background: linear-gradient(135deg, #e7f7f2, #fff4e8);
  color: var(--muted);
}

.external-practice-cover-preview img {
  inline-size: 100%;
  block-size: 100%;
  min-inline-size: 0;
  max-inline-size: 100%;
  object-fit: cover;
}

.external-practice-cover-mode {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  margin: 0;
  padding: 0.75rem;
  border: 1px solid rgba(6, 63, 60, 0.16);
  border-radius: 0.8rem;
}

.external-practice-cover-mode legend {
  padding-inline: 0.3rem;
  font-weight: 800;
}

.external-practice-cover-mode label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.external-practice-cover-mode small {
  flex-basis: 100%;
  color: var(--muted);
}

.payment-method-record {
  align-items: flex-start;
}

.payment-method-qr-thumb {
  display: block;
  inline-size: min(180px, 42vw);
  block-size: auto;
  aspect-ratio: 1;
  object-fit: contain;
  margin-block-start: 0.65rem;
  border: 1px solid rgba(6, 63, 60, 0.16);
  border-radius: 0.65rem;
  background: #fff;
}

.payment-method-qr-link {
  display: inline-block;
}

.external-practice-cover-preview.is-error::after {
  content: "圖片載入失敗，請改用本地上傳";
  position: absolute;
  inset-inline: 0.6rem;
  inset-block-end: 0.6rem;
  border-radius: 0.5rem;
  padding: 0.35rem 0.5rem;
  background: rgba(255, 255, 255, 0.92);
  color: #8a3b2f;
  font-size: 0.72rem;
  text-align: center;
}

.external-practice-admin-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.external-practice-admin-list > article {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-inline-size: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
  background: #fff;
}

.external-practice-admin-list > article > div:first-child {
  display: grid;
  gap: 0.35rem;
  min-inline-size: 0;
}

.external-practice-admin-list strong,
.external-practice-admin-list p,
.external-practice-admin-list small {
  margin: 0;
}

.textbook-cover-admin {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.textbook-cover-admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 0.9rem;
  min-inline-size: 0;
}

.textbook-cover-admin-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-inline-size: 0;
  overflow: hidden;
  border: 1px solid rgba(6, 63, 60, 0.16);
  border-radius: var(--radius);
  background: #fff;
}

.textbook-cover-admin-preview {
  display: grid;
  place-items: center;
  aspect-ratio: 12 / 7;
  overflow: hidden;
  background: #f6fbfa;
}

.textbook-cover-admin-preview img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
}

.textbook-cover-admin-copy,
.textbook-cover-admin-form {
  display: grid;
  gap: 0.45rem;
  min-inline-size: 0;
  padding: 0.8rem;
}

.textbook-cover-admin-copy small,
.textbook-cover-admin-form .hint {
  margin: 0;
  color: var(--muted);
}

.textbook-cover-admin-copy code {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.textbook-cover-admin-form {
  padding-block-start: 0;
}

.textbook-cover-admin-form .button,
.textbook-cover-file-button {
  min-block-size: 44px;
}

@media (max-width: 620px) {
  .textbook-cover-admin-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 900px) {
  .external-practice-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .external-platform-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .external-platform-row .button {
    inline-size: 100%;
  }
}

@media (max-width: 620px) {
  .external-practice-form {
    grid-template-columns: minmax(0, 1fr);
  }

  .external-practice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
  }

  .external-practice-form .full {
    grid-column: 1;
  }

  .external-practice-filter-bar,
  .external-practice-cover-chooser,
  .external-practice-cover-field,
  .external-practice-platform-custom,
  .external-platform-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .external-practice-filter-bar {
    display: grid;
  }

  .external-practice-filter-bar > .tag {
    margin: 0;
    justify-self: start;
  }

  .external-practice-cover-field > span,
  .external-practice-cover-field > .hint,
  .external-practice-cover-preview {
    grid-column: 1;
  }

  .external-practice-cover-preview {
    grid-row: auto;
  }

  .external-practice-home-row {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow-x: visible;
    overscroll-behavior-inline: auto;
    margin-inline: 0;
    padding: 0.1rem 0 0.25rem;
    scroll-padding-inline: 0;
    scroll-snap-type: none;
    scrollbar-width: auto;
  }

  .external-practice-grid > .external-practice-card,
  .external-practice-home-row > .external-practice-card {
    min-inline-size: 0;
    inline-size: 100%;
    scroll-snap-align: none;
  }

  .external-practice-grid .external-practice-cover,
  .external-practice-home-row .external-practice-cover {
    aspect-ratio: 16 / 9;
  }

  .external-practice-grid .external-practice-copy strong,
  .external-practice-home-row .external-practice-copy strong {
    display: -webkit-box;
    overflow: hidden;
    overflow-wrap: anywhere;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  .external-practice-grid .external-practice-copy .button,
  .external-practice-home-row .external-practice-copy .button {
    min-block-size: 48px;
  }

  .external-practice-cover-source-panel,
  .external-practice-cover-source,
  .external-practice-cover-status {
    grid-column: 1;
  }

  .external-practice-admin-list > article {
    align-items: stretch;
    flex-direction: column;
  }

  .external-practice-admin-list .row-actions,
  .external-practice-admin-list .button,
  .external-platform-row .button {
    inline-size: 100%;
  }

  .external-platform-row.is-system {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (max-width: 768px) {
  .admin-module-page .question-review-tree-panel {
    max-block-size: 38dvh;
  }
}

/* PR-UI16: keep the question-bank workspace dense and scannable without changing behavior. */
.question-review-admin .question-list-heading {
  background: linear-gradient(180deg, #ffffff 0%, #fbfdfc 100%);
}

.question-review-admin .question-list-heading .row-actions {
  align-items: center;
}

.question-review-admin .question-list-heading .tag {
  font-variant-numeric: tabular-nums;
}

.question-review-admin .question-review-results > .question-review-filter-head {
  margin-block-start: 0.1rem;
}

.question-review-admin .question-filter-grid {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.question-review-admin .question-table-viewport {
  scrollbar-color: #b8cec7 #f4f8f6;
}

.question-review-admin .question-management-table tbody tr:focus-within td {
  background: #f1f8f5;
}

.question-review-admin .question-management-table td:has(.question-row-actions) {
  vertical-align: top;
}

@media (min-width: 1101px) {
  .question-review-admin .question-review-tree-panel {
    max-block-size: calc(100dvh - 12rem);
  }

  .question-review-admin .question-review-results {
    padding-block-start: 1rem;
  }

  .question-review-admin .question-filter-grid {
    grid-template-columns: minmax(12rem, 0.85fr) minmax(13rem, 0.95fr) minmax(18rem, 1.45fr);
  }
}

@media (min-width: 701px) and (max-width: 1100px) {
  .question-review-admin .question-review-tree-panel {
    max-block-size: 28rem;
  }

  .question-review-admin .question-review-results {
    padding-block-start: 1rem;
  }

  .question-review-admin .question-filter-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .question-review-admin .question-filter-grid .field:last-child {
    grid-column: auto;
  }
}

@media (max-width: 700px) {
  .question-review-admin {
    gap: 0.7rem;
  }

  .question-review-admin .question-list-heading {
    gap: 0.65rem;
    padding-block: 0.8rem;
  }

  .question-review-admin .question-list-heading .row-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.45rem;
  }

  .question-review-admin .question-list-heading .row-actions > * {
    min-inline-size: 0;
  }

  .question-review-admin .question-list-heading .row-actions .button {
    inline-size: 100%;
    min-block-size: 2.7rem;
    padding-inline: 0.6rem;
    font-size: 0.8rem;
  }

  .question-review-admin .question-category-shortcuts {
    padding-inline: 0.7rem;
  }

  .question-review-admin .question-category-shortcuts .question-category-card {
    flex-basis: 13.5rem;
    min-block-size: 7.5rem;
  }

  .question-review-admin .question-review-tree-panel {
    max-block-size: 42dvh;
    padding: 0.75rem 0.7rem;
  }

  .question-review-admin .question-review-results {
    padding: 0.75rem 0.7rem;
  }

  .question-review-admin .question-review-filter-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.15rem;
  }

  .question-review-admin .question-review-filter-head span {
    line-height: 1.45;
  }

  .question-review-admin .question-filter-grid {
    gap: 0.55rem;
    padding: 0.65rem;
  }

  .question-review-admin .question-filter-grid .field > span {
    font-size: 0.78rem;
  }

  .question-review-admin .question-filter-grid input,
  .question-review-admin .question-filter-grid select {
    min-block-size: 2.7rem;
    font-size: 0.9rem;
  }

  .question-review-admin .question-table-viewport {
    max-block-size: 52dvh;
  }

  .question-review-admin .question-preview-table > .question-preview-toolbar,
  .question-review-admin .question-preview-table > .question-table-viewport,
  .question-review-admin .question-preview-table > .question-pagination {
    min-inline-size: 64rem;
  }

  .question-review-admin .question-management-table {
    min-inline-size: 64rem;
  }

  .question-review-admin .question-management-table .question-serial-column {
    inset-inline-start: 3rem;
    inline-size: 7.5rem;
  }

  .question-review-admin .question-management-table .question-check-column {
    inline-size: 3rem;
  }

  .question-review-admin .question-management-table .question-title-column {
    inline-size: 20rem;
  }

  .question-review-admin .question-management-table .question-action-column {
    inline-size: 12rem;
    min-inline-size: 12rem;
  }

  .question-review-admin .question-row-actions {
    flex-wrap: wrap;
    justify-content: flex-start;
    white-space: normal;
  }

  .question-review-admin .question-row-actions > .text-button,
  .question-review-admin .question-row-actions > .danger {
    min-block-size: 2.35rem;
  }

  .question-review-admin .question-pagination {
    gap: 0.55rem;
  }
}

/* Taste refresh: visual layer only. Keep existing DOM, routes, forms, and data actions intact. */
:root {
  --canvas: #f5faf8;
  --surface: #ffffff;
  --surface-soft: #f8fdfb;
  --ink-strong: #102725;
  --accent-warm: #f07a4f;
  --accent-blue: #315fd6;
  --accent-gold: #f5b83a;
  --line-strong: rgba(6, 63, 60, 0.2);
  --shadow: 0 18px 48px rgba(17, 51, 48, 0.12);
  --shadow-soft: 0 10px 28px rgba(17, 51, 48, 0.08);
}

body {
  background:
    linear-gradient(135deg, rgba(49, 95, 214, 0.08) 0 18rem, transparent 18rem),
    linear-gradient(180deg, rgba(10, 187, 185, 0.1), transparent 30rem),
    var(--canvas);
}

.site-header {
  border-block-end-color: rgba(6, 63, 60, 0.12);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 8px 26px rgba(17, 51, 48, 0.07);
}

.brand-logo {
  border: 2px solid rgba(255, 255, 255, 0.82);
  box-shadow: 0 10px 24px rgba(17, 51, 48, 0.16);
}

.brand strong,
h1,
h2,
h3 {
  color: var(--ink-strong);
}

.intro-panel,
.auth-card,
.panel,
.module-head,
.learning-section,
.practice-structure,
.study-dashboard,
.question-box,
.result,
.list-item,
.loading-box,
.loading-state {
  border-color: rgba(6, 63, 60, 0.14);
  box-shadow: var(--shadow-soft);
}

.intro-panel {
  border: 0;
  background-image:
    linear-gradient(90deg, rgba(9, 43, 40, 0.94) 0%, rgba(9, 43, 40, 0.76) 48%, rgba(9, 43, 40, 0.24) 100%),
    url("https://3958219.s148i.faieduusr.com/4/101/AJQBCAAQBBgAIOq738UGKNGCy9kHMM4aOIQH.png");
  box-shadow: 0 28px 70px rgba(9, 43, 40, 0.22);
}

.intro-panel::after {
  border-color: rgba(245, 184, 58, 0.62);
  box-shadow: inset 0 0 0 1rem rgba(255, 255, 255, 0.06);
}

.intro-panel h1 {
  text-wrap: balance;
}

.intro-panel p {
  text-wrap: pretty;
}

.auth-card {
  border-block-start-color: var(--accent-warm);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 253, 251, 0.96)),
    var(--surface);
}

.button,
.tab,
.danger,
.text-button,
.module-entry-card,
.course-cover-card,
.voice-topic-card,
.catalog-card,
.study-card,
.practice-node-chip,
.bottom-nav button {
  transition:
    transform 0.16s ease,
    border-color 0.16s ease,
    background-color 0.16s ease,
    box-shadow 0.16s ease,
    color 0.16s ease;
}

.button {
  background: var(--teal-900);
  box-shadow: 0 10px 22px rgba(6, 63, 60, 0.18);
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
  background: #052f2d;
}

.button:active:not(:disabled),
.tab:active:not(:disabled),
.module-entry-card:active,
.course-cover-card:active,
.voice-topic-card:active,
.study-card:active {
  transform: translateY(1px);
}

.button.ghost,
.tab {
  background: rgba(255, 255, 255, 0.9);
}

.button {
  color: #ffffff;
  -webkit-text-fill-color: currentColor;
}

.button:is(:hover, :active, :focus-visible):not(:disabled) {
  color: #ffffff;
  -webkit-text-fill-color: currentColor;
}

.button.ghost {
  color: var(--teal-900);
  -webkit-text-fill-color: currentColor;
}

.button.ghost:is(:hover, :active, :focus-visible):not(:disabled) {
  border-color: var(--teal-500);
  background: var(--teal-100);
  color: var(--teal-900);
  -webkit-text-fill-color: currentColor;
}

.button:disabled {
  background: #315e5b;
  color: #ffffff;
  -webkit-text-fill-color: currentColor;
  opacity: 1;
  box-shadow: none;
  transform: none;
}

.button.ghost:disabled {
  border-color: #b8cfcc;
  background: #eef5f4;
  color: #4c6260;
  -webkit-text-fill-color: currentColor;
}

.danger:disabled {
  border-color: #d6aaa6;
  background: #f6e7e5;
  color: #8b3d36;
  -webkit-text-fill-color: currentColor;
  opacity: 1;
}

.tab.is-active {
  border-color: rgba(240, 122, 79, 0.46);
  background: #fff6ef;
  box-shadow: inset 0 -3px 0 var(--accent-warm);
}

.public-practice-entries,
.info-band {
  border-color: rgba(240, 122, 79, 0.22);
  background:
    linear-gradient(135deg, rgba(255, 248, 230, 0.88), rgba(247, 253, 251, 0.95)),
    var(--surface);
}

.feature-card {
  border-color: rgba(6, 63, 60, 0.12);
  background:
    linear-gradient(180deg, #ffffff, #f8fdfb);
}

.feature-card:nth-child(2n) .feature-icon {
  background: rgba(49, 95, 214, 0.1);
  color: var(--accent-blue);
}

.feature-card:nth-child(3n) .feature-icon {
  background: rgba(240, 122, 79, 0.13);
  color: var(--accent-warm);
}

.platform-hero {
  min-block-size: 19rem;
  border: 0;
  background:
    linear-gradient(135deg, rgba(255, 248, 230, 0.95), rgba(255, 255, 255, 0.94) 44%, rgba(225, 249, 245, 0.95)),
    var(--surface);
  box-shadow: 0 24px 64px rgba(17, 51, 48, 0.13);
}

.platform-hero::after {
  inset-block: 1.25rem;
  inset-inline-end: 1.25rem;
  inline-size: min(18rem, 32%);
  block-size: auto;
  aspect-ratio: 3 / 4;
  border: 1px solid rgba(6, 63, 60, 0.14);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(6, 63, 60, 0.2)),
    url("./assets/cover-shuohao.png") center / cover;
  box-shadow: 0 18px 44px rgba(17, 51, 48, 0.16);
  opacity: 0.92;
  transform: rotate(2deg);
}

.platform-hero-copy,
.home-search {
  position: relative;
  z-index: 1;
}

.platform-hero h2 {
  max-inline-size: 11ch;
  font-size: clamp(2rem, 4vw, 3.55rem);
  line-height: 1.05;
  text-wrap: balance;
}

.platform-hero p {
  max-inline-size: 42rem;
  color: #47615e;
}

.home-search {
  align-self: end;
  padding: 0.9rem;
  border: 1px solid rgba(6, 63, 60, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(12px);
}

.hero-quick-grid button,
.practice-node-chip {
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 8px 18px rgba(17, 51, 48, 0.06);
}

.hero-quick-grid button:hover,
.practice-node-chip:hover,
.practice-node-chip:focus-visible,
.practice-node-chip.is-active {
  border-color: rgba(240, 122, 79, 0.52);
  background: #fff7ee;
  color: var(--ink-strong);
}

.module-entry-card {
  --card-accent: var(--teal-700);
  position: relative;
  overflow: hidden;
  border-color: rgba(6, 63, 60, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 253, 251, 0.98)),
    var(--surface);
  box-shadow: var(--shadow-soft);
}

.module-entry-card::before {
  content: "";
  inline-size: 2.2rem;
  block-size: 0.25rem;
  border-radius: 999px;
  background: var(--card-accent);
}

.module-entry-card:nth-child(5n + 2) {
  --card-accent: var(--accent-warm);
}

.module-entry-card:nth-child(5n + 3) {
  --card-accent: var(--accent-blue);
}

.module-entry-card:nth-child(5n + 4) {
  --card-accent: var(--leaf);
}

.module-entry-card:nth-child(5n + 5) {
  --card-accent: var(--accent-gold);
}

.module-entry-card:hover,
.module-entry-card:focus-visible,
.module-entry-card.is-active {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--card-accent), white 28%);
  background: #ffffff;
  box-shadow: 0 18px 42px rgba(17, 51, 48, 0.13);
}

.module-entry-card strong,
.course-cover-copy strong,
.catalog-card strong,
.study-card strong {
  color: var(--ink-strong);
}

.course-cover-card {
  border-color: rgba(6, 63, 60, 0.12);
  background: var(--surface);
}

.course-cover-card:hover,
.course-cover-card:focus-visible {
  border-color: rgba(240, 122, 79, 0.62);
  box-shadow: 0 22px 52px rgba(17, 51, 48, 0.16);
}

.course-cover-media {
  background: linear-gradient(135deg, #ecf8f5, #fff5eb);
}

.course-cover-copy {
  background: linear-gradient(180deg, #ffffff, #fbfefd);
}

.voice-topic-card {
  border-color: rgba(6, 63, 60, 0.12);
  box-shadow: var(--shadow-soft);
}

.voice-topic-card:hover,
.voice-topic-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(49, 95, 214, 0.42);
  box-shadow: 0 16px 38px rgba(17, 51, 48, 0.13);
}

.practice-catalog-grid,
.module-entry-grid,
.home-course-grid,
.voice-topic-grid,
.study-dashboard {
  container-type: inline-size;
}

.catalog-card,
.study-card,
.practice-result-item {
  background:
    linear-gradient(180deg, #ffffff, var(--surface-soft));
  box-shadow: var(--shadow-soft);
}

.catalog-card:hover {
  border-color: rgba(6, 63, 60, 0.26);
}

.practice-player {
  inline-size: min(100%, 760px);
}

.practice-question-card,
.practice-result-summary,
.practice-result-item {
  box-shadow: var(--shadow-soft);
}

.loading-state,
.loading-box {
  position: relative;
  overflow: hidden;
}

.loading-state::after,
.loading-box::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.62), transparent);
  transform: translateX(-100%);
  animation: loading-sheen 1.5s ease-in-out infinite;
}

@keyframes loading-sheen {
  to {
    transform: translateX(100%);
  }
}

@media (max-width: 620px) {
  .platform-hero {
    min-block-size: 0;
  }

  .platform-hero::after {
    inset-block: auto 0.9rem;
    inset-inline-end: 0.9rem;
    inline-size: 6.8rem;
    opacity: 0.22;
  }

  .platform-hero h2 {
    max-inline-size: 12ch;
    font-size: clamp(2rem, 12vw, 2.85rem);
  }

  .module-entry-card::before {
    inline-size: 1.7rem;
  }

  .bottom-nav {
    border-color: rgba(6, 63, 60, 0.16);
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(14px);
  }

  .bottom-nav button.is-active {
    background: #fff2e9;
    color: var(--ink-strong);
  }
}

.paper-workspace {
  inline-size: min(100%, 860px);
  margin-inline: auto;
}

.paper-progress {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 1rem;
}

.paper-number {
  inline-size: 2.75rem;
  block-size: 2.75rem;
  border: 1px solid #b9c8c4;
  border-radius: 6px;
  background: #fff;
  color: var(--ink-strong);
  font-weight: 700;
}

.paper-number.is-answered {
  border-color: #17806f;
  background: #e7f6f1;
}

.paper-number.is-current {
  outline: 3px solid #f2a65a;
  outline-offset: 2px;
}

.paper-status-line {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  margin-block-end: 1rem;
  color: var(--ink-muted);
  font-weight: 700;
}

.paper-question-form {
  border: 1px solid #d4dfdc;
  border-radius: 8px;
  background: #fff;
  padding: clamp(1rem, 3vw, 1.75rem);
}

.paper-question-form fieldset {
  min-inline-size: 0;
  border: 0;
  margin: 0;
  padding: 0;
}

.paper-question-form legend {
  inline-size: 100%;
  margin-block-end: 1rem;
  font-size: 1.35rem;
  line-height: 1.45;
  font-weight: 800;
  text-wrap: pretty;
}

.paper-options {
  display: grid;
  gap: 0.625rem;
}

.paper-option {
  display: grid;
  grid-template-columns: 1.25rem minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  min-block-size: 3.25rem;
  border: 1px solid #c7d3d0;
  border-radius: 6px;
  padding: 0.7rem 0.85rem;
  cursor: pointer;
}

.paper-option:has(input:checked) {
  border-color: #17766a;
  background: #edf8f4;
}

.paper-option input[type="radio"] {
  inline-size: 1.15rem;
  block-size: 1.15rem;
  min-block-size: 0;
  margin: 0;
  padding: 0;
  accent-color: #17766a;
}

.paper-option > span {
  min-inline-size: 0;
  font-size: 1.05rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

@media (max-width: 480px), (any-pointer: coarse) and (max-width: 1400px) {
  .fill-answer-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .fill-answer-grid.is-paired-pinyin {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pinyin-answer-wrap {
    gap: 0.6rem;
  }

  .pinyin-keyboard {
    position: fixed;
    z-index: 120;
    inset-inline: 0;
    inset-block-end: 0;
    inline-size: 100%;
    max-inline-size: 64rem;
    margin-inline: auto;
    max-block-size: min(70dvh, 32rem);
    overflow-y: auto;
    gap: 0.25rem;
    border: 0;
    border-block-start: 1px solid #d4dadc;
    border-radius: 1rem 1rem 0 0;
    padding: 0.4rem max(0.35rem, env(safe-area-inset-right)) calc(0.45rem + env(safe-area-inset-bottom)) max(0.35rem, env(safe-area-inset-left));
    background: #e9edef;
    box-shadow: 0 -18px 48px rgba(10, 40, 38, 0.22);
    visibility: hidden;
    pointer-events: none;
    transform: translateY(calc(100% + 1rem));
    overscroll-behavior: contain;
  }

  .pinyin-keyboard.is-mobile-open {
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .pinyin-keyboard.is-mobile-open + .pinyin-keyboard-spacer {
    display: block;
    block-size: min(70dvh, 32rem);
  }

  .pinyin-keyboard-mobile-head {
    min-block-size: 44px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.25rem;
    padding-inline: 0.25rem;
    color: #24433f;
  }

  .pinyin-keyboard-mobile-head strong {
    min-inline-size: 0;
    flex: 1 1 auto;
    font-size: 0.84rem;
    letter-spacing: 0.02em;
    white-space: nowrap;
  }

  .pinyin-keyboard-head-actions {
    min-inline-size: 0;
    flex: 0 0 auto;
    display: flex;
    justify-content: flex-end;
    gap: 0.22rem;
  }

  .pinyin-keyboard-tool {
    min-block-size: 44px;
    border: 0;
    border-radius: 0.65rem;
    padding-inline: 0.55rem;
    background: #fff;
    color: #173d37;
    font: inherit;
    font-size: 0.78rem;
    font-weight: 800;
    white-space: nowrap;
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(19, 50, 46, 0.13);
  }

  .pinyin-keyboard-delete {
    inline-size: 44px;
    padding-inline: 0;
    background: rgba(255, 255, 255, 0.72);
    color: #60716e;
    font-size: 1.08rem;
    font-weight: 700;
  }

  .pinyin-keyboard-close {
    inline-size: 44px;
    min-block-size: 44px;
    border: 0;
    border-radius: 999px;
    background: #fff;
    color: #173d37;
    font: inherit;
    font-size: 1.45rem;
    font-weight: 800;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(19, 50, 46, 0.13);
  }

  .pinyin-keyboard-close:focus-visible,
  .pinyin-keyboard-tool:focus-visible {
    outline: 3px solid #006b5f;
    outline-offset: 2px;
  }

  .pinyin-keyboard-section,
  .pinyin-tone-keyboard {
    gap: 0.25rem;
  }

  .pinyin-keyboard-section > strong,
  .pinyin-tone-keyboard > summary {
    display: none;
  }

  .pinyin-key-grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
    gap: 0.25rem;
  }

  .pinyin-key-grid-desktop,
  .pinyin-keyboard-actions-desktop {
    display: none;
  }

  .pinyin-key-grid-mobile {
    display: grid;
  }

  .pinyin-consonant-grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
  }

  .pinyin-vowel-grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
  }

  .pinyin-keyboard-actions-mobile {
    display: grid;
    grid-template-columns: repeat(10, minmax(0, 1fr));
    gap: 0.25rem;
  }

  .pinyin-key {
    min-block-size: 44px;
    border: 0;
    border-radius: 0.55rem;
    padding: 0.2rem 0.05rem;
    background: #fff;
    font-size: 1.08rem;
    box-shadow: 0 1px 4px rgba(19, 50, 46, 0.14);
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
  }

  .pinyin-key:hover,
  .pinyin-key:focus-visible {
    background: #dff1ec;
  }

  .pinyin-keyboard-actions-mobile .pinyin-key {
    font-size: 0.9rem;
  }

  .pinyin-keyboard .hint {
    display: none;
  }

  .practice-player.has-mobile-pinyin-keyboard .practice-player-actions,
  .paper-workspace.has-mobile-pinyin-keyboard .paper-player-actions {
    position: fixed;
    z-index: 121;
    inset-inline: max(0.5rem, env(safe-area-inset-left)) max(0.5rem, env(safe-area-inset-right));
    inset-block-end: var(--pinyin-keyboard-height, 0px);
    max-inline-size: 64rem;
    margin-inline: auto;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 0.4rem;
    border: 1px solid #cbded9;
    border-block-end: 0;
    border-radius: 0.9rem 0.9rem 0 0;
    padding: 0.45rem;
    margin-block: 0;
    margin-inline: auto;
    background: rgba(245, 250, 248, 0.98);
    box-shadow: 0 -8px 24px rgba(10, 40, 38, 0.14);
  }

  .practice-player.has-mobile-pinyin-keyboard .practice-player-actions .button,
  .paper-workspace.has-mobile-pinyin-keyboard .paper-player-actions .button {
    flex: 1 1 0;
    inline-size: auto;
    min-inline-size: 0;
    min-block-size: 48px;
    padding-inline: 0.45rem;
    white-space: nowrap;
  }

  .blank-result-row {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (any-pointer: coarse) and (min-width: 481px) and (max-width: 1400px) {
  .pinyin-keyboard {
    gap: 0.35rem;
    border-inline: 1px solid #d4dadc;
    padding: 0.55rem max(0.75rem, env(safe-area-inset-right)) calc(0.6rem + env(safe-area-inset-bottom)) max(0.75rem, env(safe-area-inset-left));
  }

  .pinyin-keyboard-mobile-head {
    min-block-size: 48px;
    padding-inline: 0.35rem;
  }

  .pinyin-keyboard-tool,
  .pinyin-keyboard-close {
    min-block-size: 48px;
  }

  .pinyin-keyboard-tool {
    padding-inline: 0.8rem;
    font-size: 0.86rem;
  }

  .pinyin-keyboard-delete,
  .pinyin-keyboard-close {
    inline-size: 48px;
  }

  .pinyin-key-grid,
  .pinyin-keyboard-actions-mobile {
    gap: 0.35rem;
  }

  .pinyin-key {
    min-block-size: clamp(48px, 5dvh, 54px);
    border-radius: 0.7rem;
    font-size: 1.2rem;
  }

  .pinyin-keyboard-actions-mobile .pinyin-key {
    font-size: 1rem;
  }

  .practice-player.has-mobile-pinyin-keyboard .practice-player-actions,
  .paper-workspace.has-mobile-pinyin-keyboard .paper-player-actions {
    inset-inline: max(0.75rem, env(safe-area-inset-left)) max(0.75rem, env(safe-area-inset-right));
    padding: 0.55rem;
  }

  .practice-player.has-mobile-pinyin-keyboard .practice-player-actions .button,
  .paper-workspace.has-mobile-pinyin-keyboard .paper-player-actions .button {
    min-block-size: 52px;
    padding-inline: 0.8rem;
  }
}

@media (max-width: 359px) {
  .pinyin-keyboard-tool {
    padding-inline: 0.4rem;
    font-size: 0.72rem;
  }

  .pinyin-keyboard-mobile-head strong {
    font-size: 0.78rem;
  }
}

.paper-option > span strong {
  display: inline-block;
  min-inline-size: 1.5rem;
  margin-inline-end: 0.35rem;
}

.paper-player-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-block-start: 1.5rem;
}

.paper-result-list .is-correct {
  border-inline-start: 4px solid #17806f;
}

.paper-result-list .is-wrong {
  border-inline-start: 4px solid #c7504b;
}

.paper-result-list .is-unanswered {
  border-inline-start: 4px solid #7b8794;
}

.paper-result-progress .paper-number {
  inline-size: auto;
  min-inline-size: 3.5rem;
  block-size: auto;
  min-block-size: 3rem;
  display: inline-grid;
  grid-template-columns: auto auto;
  align-items: center;
  justify-content: center;
  gap: .2rem;
  padding: .35rem .5rem;
}

.paper-result-progress .paper-number small {
  grid-column: 1 / -1;
  font-size: .68rem;
  line-height: 1;
}

.paper-number.is-correct { border-color: #15803d; background: #ecfdf3; color: #166534; }
.paper-number.is-wrong { border-color: #dc2626; background: #fff1f2; color: #b91c1c; }
.paper-number.is-unanswered { border-color: #94a3b8; background: #f8fafc; color: #475569; }
.paper-result-list .is-correct .paper-result-status,
.paper-result-list .is-correct .paper-user-answer strong { color: #15803d; }
.paper-result-list .is-wrong .paper-result-status,
.paper-result-list .is-wrong .paper-user-answer strong { color: #c81e1e; }
.paper-result-list .is-unanswered .paper-result-status,
.paper-result-list .is-unanswered .paper-user-answer strong { color: #64748b; }
.paper-result-status { font-weight: 850; }
.paper-result-status span { display: inline-block; min-inline-size: 1.3rem; margin-inline-end: .25rem; }
.paper-correct-answer strong { color: #166534; }

.paper-question-picker,
.paper-selected-list {
  grid-column: 1 / -1;
  min-inline-size: 0;
  border: 1px solid #d4dfdc;
  border-radius: 8px;
  padding: 1rem;
}

.paper-candidate-list,
.paper-selected-list {
  display: grid;
  gap: 0.6rem;
}

.paper-candidate,
.paper-selected-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  border-block-start: 1px solid #e0e8e6;
  padding-block-start: 0.65rem;
}

.paper-selected-row {
  grid-template-columns: minmax(0, 1fr) 6rem auto;
}

.paper-candidate span,
.paper-selected-row > span {
  min-inline-size: 0;
}

.paper-candidate strong,
.paper-selected-row strong,
.paper-candidate small,
.paper-selected-row small {
  display: block;
  overflow-wrap: anywhere;
}

.field.compact {
  margin: 0;
}

@media (max-width: 620px) {
  .paper-status-line {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .paper-status-line span:last-child {
    grid-column: 1 / -1;
  }

  .paper-player-actions .button {
    flex: 1 1 8rem;
    min-block-size: 3rem;
  }

  .paper-selected-row {
    grid-template-columns: 1fr;
  }

  .paper-selected-row .row-actions {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* B7: administrator workspace must contain wide tools instead of clipping the page. */
img,
video,
canvas,
svg,
input,
select,
textarea {
  max-inline-size: 100%;
}

#app-view,
#module-view,
#module-content,
.view,
.module-page,
.admin-module-page,
.admin-module-panel,
.panel,
.admin-grid,
.form-grid,
.field,
.panel-title-row,
.row-actions,
.table-tabs,
.table-wrap,
.paper-admin-layout,
.paper-question-picker,
.paper-selected-list,
.paper-question-group {
  min-inline-size: 0;
  max-inline-size: 100%;
}

.table-wrap {
  inline-size: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-gutter: stable;
  -webkit-overflow-scrolling: touch;
}

.table-scroll-hint {
  display: none;
  margin: 0.35rem 0 0.55rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.paper-question-group > .table-wrap {
  inline-size: auto;
  max-inline-size: calc(100% - 2rem);
}

pre,
code,
.temporary-password,
.break-text,
.hint,
th,
td {
  overflow-wrap: anywhere;
  word-break: break-word;
}

@media (max-width: 768px) {
  .admin-module-page .module-head,
  .admin-module-page .panel-title-row,
  .admin-module-page .head-actions,
  .admin-module-page .inline-form {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-module-page .panel-title-row > *,
  .admin-module-page .row-actions,
  .admin-module-page .table-search,
  .admin-module-page .inline-form input,
  .admin-module-page .inline-form select,
  .admin-module-page .inline-form textarea {
    min-inline-size: 0;
    inline-size: 100%;
  }

  .admin-module-panel > .table-tabs {
    flex-wrap: nowrap;
    inline-size: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    padding-block-end: 0.35rem;
    scrollbar-width: thin;
  }

  .admin-module-panel > .table-tabs .tab {
    flex: 0 0 auto;
    min-block-size: 48px;
    white-space: nowrap;
  }

  .admin-module-page .form-grid,
  .admin-module-page .role-form-grid,
  .admin-module-page .learning-node-toolbar,
  .admin-module-page .learning-node-layout,
  .admin-module-page .learning-node-form,
  .admin-module-page .lesson-word-import-form,
  .admin-module-page .lesson-import-directory,
  .admin-module-page .paper-rule-row,
  .admin-module-page .question-generation-form,
  .admin-module-page .question-review-form,
  .admin-module-page .media-upload-form,
  .admin-module-page .practice-permission-form,
  .admin-module-page .paper-export-form {
    grid-template-columns: minmax(0, 1fr);
  }

  .admin-module-page .full,
  .admin-module-page .paper-export-status {
    grid-column: 1;
  }

  .admin-module-page .lesson-word-file-row {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-module-page .button,
  .admin-module-page .text-button,
  .admin-module-page input,
  .admin-module-page select,
  .admin-module-page textarea,
  .modal-dialog .button,
  .modal-dialog .text-button,
  .modal-dialog input,
  .modal-dialog select,
  .modal-dialog textarea {
    min-block-size: 48px;
    font-size: 1rem;
  }

  .admin-module-page .row-actions {
    align-items: stretch;
  }

  .admin-module-page .row-actions .button,
  .admin-module-page .row-actions .text-button {
    flex: 1 1 10rem;
    white-space: normal;
  }

  .table-scroll-hint {
    display: block;
  }

  .inline-detail[open] {
    min-inline-size: 0;
  }

  .modal-dialog {
    inline-size: calc(100dvw - 1.5rem);
    max-inline-size: calc(100dvw - 1.5rem);
    max-block-size: calc(100dvh - 1.5rem);
    margin: auto;
  }

  .modal-dialog > div {
    max-block-size: calc(100dvh - 1.5rem);
    padding: 0.85rem;
  }

  .modal-head,
  .detail-head {
    align-items: stretch;
    flex-direction: column;
  }

  .modal-actions {
    inset-block-end: -0.85rem;
    margin-inline: -0.85rem;
    margin-block-end: -0.85rem;
    padding: 0.75rem 0.85rem;
  }

  .modal-actions .button,
  .modal-actions .text-button {
    flex: 1 1 9rem;
  }

  .admin-home-section .module-entry-grid,
  .admin-home-section .module-entry-grid.compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .billing-metrics,
  .billing-editor-grid,
  .billing-form,
  .commerce-catalog-grid,
  .payment-proof-editor form {
    grid-template-columns: minmax(0, 1fr);
  }

  .billing-form-wide,
  .billing-form > .button,
  .payment-proof-editor form .button,
  .payment-proof-editor form .field:last-of-type {
    grid-column: 1;
  }

  .billing-record {
    align-items: stretch;
    flex-direction: column;
  }

  .billing-record > .row-actions,
  .billing-record > .button,
  .billing-record > a.button {
    inline-size: 100%;
  }

  .billing-search-form {
    align-items: stretch;
    flex-direction: column;
  }

  .billing-table {
    min-width: 640px;
  }

  .billing-table th,
  .billing-table td {
    padding: 10px;
  }

  .commerce-payment-entry,
  .commerce-payment-entry .row-actions,
  .commerce-payment-entry .button,
  .commerce-payment-entry a.button,
  .commerce-student-picker {
    inline-size: 100%;
  }

  .billing-aging > div {
    grid-template-columns: 1fr auto;
  }
  .billing-aging-item {
    grid-template-columns: 1fr auto;
  }
  .billing-aging-item em {
    grid-column: 1 / -1;
  }

  .billing-aging em {
    grid-column: 1 / -1;
  }
}

@media (max-width: 360px) {
  main {
    --page-inline-gutter: 0.75rem;
  }

  main,
  .site-header {
    padding-inline: 0.75rem;
  }

  .admin-module-page .panel,
  .admin-module-page .module-head,
  .admin-module-page .learning-section {
    padding: 0.75rem;
  }

  .admin-module-page .metrics,
  .admin-home-section .module-entry-grid,
  .admin-home-section .module-entry-grid.compact {
    grid-template-columns: minmax(0, 1fr);
  }
}

.content-uat-host {
  min-width: 0;
  overflow: visible;
}

.content-uat-workspace {
  min-width: 0;
  color: var(--ink);
}

.content-uat-toolbar,
.content-uat-heading,
.content-media-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.content-uat-toolbar {
  padding: 4px 0 20px;
}

.content-uat-toolbar h3,
.content-uat-heading h3 {
  margin: 0;
  letter-spacing: 0;
}

.content-uat-toolbar .eyebrow {
  display: block;
  margin-bottom: 4px;
}

.content-uat-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.content-uat-metrics > div {
  min-width: 0;
  padding: 18px 16px;
  border-right: 1px solid var(--line);
}

.content-uat-metrics > div:last-child {
  border-right: 0;
}

.content-uat-metrics span,
.content-uat-metrics strong {
  display: block;
}

.content-uat-metrics span,
.content-uat-heading p,
.content-uat-list p,
.content-media-result span {
  color: var(--muted);
}

.content-uat-metrics strong {
  margin-top: 6px;
  font-size: 1.35rem;
  font-variant-numeric: tabular-nums;
}

.content-uat-section {
  padding: 28px 0 32px;
  border-bottom: 1px solid var(--line);
}

.content-uat-heading {
  align-items: flex-start;
  margin-bottom: 18px;
}

.content-uat-heading p {
  margin: 5px 0 0;
}

.content-uat-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 16px;
  min-width: 0;
}

.content-uat-form .field,
.content-uat-form input,
.content-uat-form select,
.content-uat-form textarea {
  min-width: 0;
  width: 100%;
}

.content-uat-form textarea[name="manifest"] {
  resize: vertical;
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.55;
  tab-size: 2;
}

.content-uat-wide,
.content-uat-full {
  grid-column: 1 / -1;
}

.content-uat-form > .button {
  justify-self: start;
}

.content-uat-list {
  margin-top: 22px;
  border-top: 1px solid var(--line);
}

.content-uat-list article {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-width: 0;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft, var(--line));
}

.content-uat-list article > div:first-child {
  min-width: 0;
}

.content-uat-list span,
.content-uat-list strong,
.content-uat-list p {
  display: block;
}

.content-uat-list strong {
  margin-top: 3px;
}

.content-uat-list p {
  margin: 4px 0 0;
}

.content-uat-list code {
  max-width: 20rem;
  overflow-wrap: anywhere;
  color: var(--muted);
  font-size: 0.75rem;
}

.content-uat-errors {
  margin-top: 16px;
  padding: 12px 14px;
  border-left: 3px solid var(--danger, #a63a3a);
  background: color-mix(in srgb, var(--danger, #a63a3a) 7%, transparent);
}

.content-uat-errors p {
  margin: 4px 0;
}

.content-media-result {
  margin-top: 18px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

@media (max-width: 768px) {
  .content-uat-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content-uat-metrics > div:nth-child(2) {
    border-right: 0;
  }

  .content-uat-metrics > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .content-uat-form {
    grid-template-columns: minmax(0, 1fr);
  }

  .content-uat-wide,
  .content-uat-full {
    grid-column: auto;
  }

  .content-uat-form > .button,
  .content-uat-form .row-actions,
  .content-uat-form .row-actions .button {
    width: 100%;
  }

  .content-uat-list article,
  .content-media-result {
    align-items: flex-start;
    flex-direction: column;
  }

  .content-uat-list article > .row-actions {
    width: 100%;
    align-items: flex-start;
  }

  .content-uat-list code {
    max-width: 100%;
  }
}

@media (max-width: 390px) {
  .content-uat-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .content-uat-toolbar .button {
    width: 100%;
  }

  .content-uat-metrics > div {
    padding: 14px 10px;
  }

  .content-uat-metrics strong {
    font-size: 1.1rem;
  }

  .content-uat-section {
    padding: 22px 0 26px;
  }
}

/* Frontend batch 1: professional education workspace. */
body[data-shell="login"] {
  background: #f4f7f6;
}

body[data-shell="login"] .site-header {
  display: none;
}

body[data-shell="login"] main {
  display: grid;
  min-block-size: 100dvh;
  padding: clamp(1rem, 3vw, 2rem);
}

body[data-shell="login"] .login-page {
  inline-size: min(100%, 72rem);
  min-block-size: 0;
}

body[data-shell="login"] .login-shell {
  border: 1px solid #d8e3df;
  border-radius: 8px;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 24px 64px rgba(24, 54, 49, 0.12);
}

body[data-shell="login"] .login-page-copy,
body[data-shell="login"] .auth-card {
  border-radius: 0;
  box-shadow: none;
}

body[data-shell="login"] .auth-card {
  border: 0;
  border-block-start: 4px solid #e9823d;
}

.shell-menu-button {
  display: none;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  flex: 0 0 2.75rem;
  border: 1px solid #c9d8d3;
  border-radius: 6px;
  background: #ffffff;
  color: #164c43;
  font-size: 1.35rem;
  cursor: pointer;
}

body[data-shell="app"] {
  background: #f4f7f6;
  color: #202724;
}

body[data-shell="app"] .site-header {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 20;
  display: flex;
  inline-size: 16.5rem;
  block-size: 100dvh;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 1.5rem;
  padding: 1.35rem 1rem;
  border: 0;
  background: var(--brand-primary-strong, #164c43);
  box-shadow: none;
  backdrop-filter: none;
}

body[data-shell="app"] .brand {
  flex: 0 0 auto;
  flex-wrap: nowrap;
  padding: 0.25rem 0.35rem 1.2rem;
  border-block-end: 1px solid rgba(255, 255, 255, 0.16);
}

body[data-shell="app"] .brand-logo {
  inline-size: 2.75rem;
  block-size: 2.75rem;
  flex: 0 0 2.75rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: none;
}

body[data-shell="app"] .brand strong {
  color: var(--brand-on-primary-strong, #ffffff);
  font-size: 1rem;
}

body[data-shell="app"] .brand span {
  margin-block-start: 0.2rem;
  color: color-mix(in srgb, var(--brand-on-primary-strong, #ffffff) 66%, transparent);
  font-size: 0.78rem;
}

body[data-shell="app"] .nav {
  display: grid;
  align-content: start;
  gap: 0.25rem;
  inline-size: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0 0.15rem 1rem;
  scrollbar-width: thin;
}

body[data-shell="app"] .nav-section-label {
  padding: 0.25rem 0.65rem 0.55rem;
  color: color-mix(in srgb, var(--brand-on-primary-strong, #ffffff) 52%, transparent);
  font-size: 0.75rem;
  font-weight: 700;
}

body[data-shell="app"] .nav .tab {
  display: flex;
  min-block-size: 2.75rem;
  align-items: center;
  justify-content: flex-start;
  border: 0;
  border-inline-start: 3px solid transparent;
  border-radius: 4px;
  padding: 0.65rem 0.75rem;
  background: transparent;
  color: color-mix(in srgb, var(--brand-on-primary-strong, #ffffff) 80%, transparent);
  box-shadow: none;
  font-size: 0.92rem;
  font-weight: 700;
  white-space: normal;
}

body[data-shell="app"] .nav .tab:hover,
body[data-shell="app"] .nav .tab:focus-visible {
  background: color-mix(in srgb, var(--brand-on-primary-strong, #ffffff) 10%, transparent);
  color: var(--brand-on-primary-strong, #ffffff);
}

body[data-shell="app"] .nav .tab.is-active {
  border-inline-start-color: var(--brand-focus, #e9823d);
  background: color-mix(in srgb, var(--brand-on-primary-strong, #ffffff) 14%, transparent);
  color: var(--brand-on-primary-strong, #ffffff);
  box-shadow: none;
}

body[data-shell="app"] main {
  min-block-size: 100dvh;
  margin-inline-start: 16.5rem;
  padding: 0;
}

body[data-shell="app"] #app-view {
  max-inline-size: 96rem;
  margin-inline: auto;
  padding: 0 clamp(1rem, 2.6vw, 2.5rem) 3rem;
}

body[data-shell="app"] .floating-service {
  display: none !important;
}

body[data-shell="app"] .page-head {
  position: sticky;
  inset-block-start: 0;
  z-index: 9;
  min-block-size: 5.4rem;
  max-inline-size: none;
  margin: 0 -0.25rem 1.5rem;
  padding: 1rem 0.25rem;
  border-block-end: 1px solid #d8e3df;
  background: rgba(244, 247, 246, 0.96);
  backdrop-filter: blur(12px);
}

body[data-shell="app"] .page-head h1 {
  margin-block-end: 0.15rem;
  color: #16342f;
  font-size: 1.55rem;
  line-height: 1.2;
}

body[data-shell="app"] .page-head .eyebrow {
  margin-block-end: 0.2rem;
  color: #337368;
}

body[data-shell="app"] #member-line {
  margin: 0;
  font-size: 0.84rem;
}

body[data-shell="app"] .module-head {
  border: 0;
  border-block-end: 1px solid #d8e3df;
  border-radius: 0;
  padding: 0 0 1rem;
  background: transparent;
  box-shadow: none;
}

body[data-shell="app"] .module-head.is-page-summary {
  padding-block-end: 0.75rem;
}

body[data-shell="app"] .module-head.is-page-summary .hint {
  margin: 0;
}

body[data-shell="app"] .module-head .eyebrow {
  color: #337368;
}

body[data-shell="app"] .admin-module-panel {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.admin-module-toolbar {
  display: flex;
  justify-content: flex-end;
  gap: 0.65rem;
  min-inline-size: 0;
}

.admin-module-toolbar:empty {
  display: none;
}

.admin-module-toolbar .table-search {
  inline-size: min(22rem, 100%);
}

body[data-shell="app"] .admin-module-panel > .panel-title-row {
  padding-block: 0.2rem 0.8rem;
  border-block-end: 1px solid #d8e3df;
}

body[data-shell="app"] .admin-module-panel > .table-tabs {
  flex-wrap: nowrap;
  overflow-x: auto;
  padding-block-end: 0.35rem;
}

.dashboard-data-tools {
  inline-size: 100%;
  min-inline-size: 0;
  max-inline-size: 100%;
  grid-template-columns: minmax(0, 1fr);
  overflow-x: clip;
  border-block: 1px solid #d8e3df;
  padding-block: 0.2rem;
}

.dashboard-data-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-block-size: 3.5rem;
  padding: 0.75rem 0;
}

.dashboard-data-summary small {
  color: var(--muted);
  font-weight: 650;
}

.dashboard-data-tools[open] > .dashboard-data-summary {
  border-block-end: 1px solid #d8e3df;
}

.admin-welcome {
  display: flex;
  min-block-size: 10rem;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.5rem;
  border-radius: 8px;
  background: #164c43;
  color: #ffffff;
}

.admin-welcome h2 {
  margin-block-end: 0.45rem;
  color: #ffffff;
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  line-height: 1.18;
}

.admin-welcome p {
  margin-block-end: 0;
  color: rgba(255, 255, 255, 0.72);
}

.admin-welcome .eyebrow {
  color: #a8d8ce;
}

.admin-welcome .button {
  flex: 0 0 auto;
  background: #e9823d;
  box-shadow: none;
}

.dashboard-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.dashboard-metrics button {
  display: grid;
  gap: 0.25rem;
  min-block-size: 8rem;
  align-content: center;
  border: 1px solid #d8e3df;
  border-radius: 6px;
  padding: 1rem;
  background: #ffffff;
  color: #202724;
  text-align: start;
  cursor: pointer;
  transition: border-color 160ms ease, transform 160ms ease;
}

.dashboard-metrics button:hover,
.dashboard-metrics button:focus-visible {
  border-color: #4f8c81;
  transform: translateY(-1px);
}

.dashboard-metrics span,
.dashboard-metrics small {
  color: #65756f;
}

.dashboard-metrics strong {
  color: #164c43;
  font-size: 2rem;
  font-variant-numeric: tabular-nums;
}

.dashboard-columns {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(22rem, 0.85fr);
  gap: 1.5rem;
}

.dashboard-section {
  min-inline-size: 0;
  padding-block: 1.1rem 1.4rem;
  border-block-start: 1px solid #d8e3df;
}

.dashboard-section h3 {
  margin-block-end: 0;
  font-size: 1.15rem;
}

.dashboard-section .eyebrow {
  margin-block-end: 0.25rem;
  color: #337368;
}

.dashboard-schedule,
.dashboard-news-list {
  display: grid;
}

.dashboard-schedule article {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr) auto;
  gap: 0.9rem;
  align-items: center;
  padding-block: 0.9rem;
  border-block-end: 1px solid #e1e9e6;
}

.dashboard-schedule time {
  color: #164c43;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.dashboard-schedule article div,
.dashboard-schedule article strong,
.dashboard-schedule article span {
  display: block;
  min-inline-size: 0;
}

.dashboard-schedule article div span {
  margin-block-start: 0.2rem;
  color: #65756f;
  font-size: 0.85rem;
}

.dashboard-quick-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.dashboard-quick-links button {
  display: grid;
  gap: 0.3rem;
  min-block-size: 5.6rem;
  align-content: center;
  border: 1px solid #d8e3df;
  border-radius: 6px;
  padding: 0.85rem;
  background: #ffffff;
  color: #202724;
  text-align: start;
  cursor: pointer;
}

.dashboard-quick-links button:hover,
.dashboard-quick-links button:focus-visible {
  border-color: #4f8c81;
  background: #f1f8f5;
}

.dashboard-quick-links span {
  color: #65756f;
  font-size: 0.8rem;
  line-height: 1.4;
}

.dashboard-news-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 1.5rem;
}

.dashboard-news-list article {
  position: relative;
  min-inline-size: 0;
  padding: 0.9rem 5.5rem 0.9rem 0;
  border-block-end: 1px solid #e1e9e6;
}

.dashboard-news-list p {
  margin: 0.3rem 0 0;
  color: #65756f;
  line-height: 1.5;
}

.dashboard-news-list time {
  position: absolute;
  inset-block-start: 0.9rem;
  inset-inline-end: 0;
  color: #7d8b86;
  font-size: 0.78rem;
}

.course-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
  overflow: visible;
}

.course-list-panel,
.course-workspace .embedded-panel {
  min-inline-size: 0;
  border: 1px solid #d8e3df;
  border-radius: 6px;
  background: #ffffff;
}

.course-list-panel {
  overflow: hidden;
}

.pending-makeup-panel {
  border-inline-start: 4px solid #c87824;
}

.pending-makeup-panel .course-list-heading {
  background: #fffaf2;
}

.pending-makeup-panel .course-table-region {
  margin-block-start: 0;
}

.pending-makeup-table table {
  min-inline-size: 66rem;
}

.pending-makeup-table td:first-child,
.pending-makeup-table td:nth-child(2) {
  font-weight: 700;
}

.pending-makeup-empty {
  padding: 1rem;
}

.course-list-heading {
  padding: 1rem;
  border-block-end: 1px solid #e1e9e6;
}

.course-list-heading h2 {
  margin-block-end: 0.25rem;
  font-size: 1.25rem;
}

.course-list-heading .eyebrow,
.course-detail .eyebrow {
  color: #337368;
}

.course-filter-grid {
  display: grid;
  grid-template-columns: minmax(11rem, 1.6fr) repeat(3, minmax(7rem, 1fr));
  gap: 0.7rem;
  padding: 1rem;
  background: #f7faf9;
}

.course-filter-grid .field {
  margin: 0;
}

.course-filter-grid .field span {
  font-size: 0.78rem;
}

.course-list-table {
  border-block-start: 1px solid #e1e9e6;
}

.course-list-table table {
  margin: 0;
}

.course-list-table th,
.course-list-table td {
  padding-block: 0.72rem;
}

.course-detail-column .course-detail {
  margin: 0;
  overflow: hidden;
}

.course-detail-column,
.course-table-region {
  min-inline-size: 0;
  max-inline-size: 100%;
}

.course-detail-column {
  grid-column: 1 / -1;
}

.course-table-region {
  margin-block-start: 1rem;
}

.course-table-region .table-wrap {
  inline-size: 100%;
  max-inline-size: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.course-table-region table {
  inline-size: max-content;
  min-inline-size: 100%;
}

.course-detail .panel-title-row {
  padding-block-end: 0.9rem;
  border-block-end: 1px solid #e1e9e6;
}

.course-detail .compact-tabs {
  flex-wrap: wrap;
  overflow-x: visible;
  margin: 0 -1.1rem 1rem;
  padding: 0 1.1rem 0.45rem;
}

.course-basic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: 1px solid #dce7e3;
  background: #dce7e3;
}

.course-basic-grid > div {
  min-inline-size: 0;
  padding: 0.9rem 1rem;
  background: #f8fbfa;
}

.course-basic-grid dt {
  margin-block-end: 0.35rem;
  color: #687973;
  font-size: 0.78rem;
  font-weight: 700;
}

.course-basic-grid dd {
  margin: 0;
  color: #16342f;
  font-size: 1rem;
  font-weight: 750;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.course-basic-grid .course-rules-highlight {
  grid-column: 1 / -1;
  background: #eef9f5;
  border-inline-start: 4px solid #16806f;
}

.course-rules-highlight dd,
.lesson-rule-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.lesson-rules-field {
  padding: 0.8rem;
  border: 1px solid #cfe0da;
  border-radius: 6px;
}

.lesson-rules-field legend {
  padding-inline: 0.3rem;
  color: #214c44;
  font-weight: 750;
}

.lesson-rule-options label {
  display: inline-flex;
  align-items: center;
  min-block-size: 2rem;
  gap: 0.35rem;
  border: 1px solid #d7e6e1;
  border-radius: 6px;
  padding: 0.3rem 0.5rem;
  background: #f8fbfa;
  font-size: 0.84rem;
  line-height: 1.25;
}

.lesson-rule-options input[type="checkbox"] {
  flex: 0 0 auto;
  inline-size: 1rem;
  block-size: 1rem;
  margin: 0;
  accent-color: var(--teal-700);
}

.course-table-region th:last-child,
.course-table-region td:last-child,
.sticky-action-table th:last-child,
.sticky-action-table td:last-child {
  position: sticky;
  inset-inline-end: 0;
  z-index: 2;
  min-inline-size: 9rem;
  background: #ffffff;
  box-shadow: -1px 0 0 #d8ebe8;
}

.course-table-region thead th:last-child,
.sticky-action-table thead th:last-child {
  z-index: 3;
  background: #eaf8f5;
}

.course-table-region td:last-child .row-actions,
.sticky-action-table td:last-child .row-actions {
  flex-wrap: nowrap;
  white-space: nowrap;
}

.word-lookup-page {
  max-inline-size: 64rem;
  margin-inline: auto;
}

.word-lookup-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: end;
  margin-block-end: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: #ffffff;
}

.word-lookup-form .field {
  margin: 0;
}

.word-lookup-results {
  display: grid;
  gap: 0.75rem;
}

.word-lookup-result {
  display: grid;
  grid-template-columns: minmax(8rem, 0.45fr) minmax(12rem, 1fr);
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
}

.word-lookup-result > div,
.word-lookup-result dl > div {
  display: grid;
  gap: 0.2rem;
}

.word-lookup-result span,
.word-lookup-result dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.word-lookup-result strong {
  color: var(--teal-900);
  font-size: 1.35rem;
}

.word-lookup-pinyin strong {
  font-size: 1.65rem;
}

.word-lookup-result dl {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.word-lookup-result dl > div {
  padding: 0.7rem;
  background: #f8fbfa;
}

.word-lookup-result dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.home-word-lookup {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 0.75rem;
  min-inline-size: 0;
  padding: 1rem;
  border: 1px solid rgba(6, 63, 60, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 16px 34px rgba(17, 51, 48, 0.1);
}

.home-word-lookup h2,
.home-word-lookup h3,
.home-word-lookup p {
  margin: 0;
}

.home-word-lookup-form {
  display: grid;
  gap: 0.35rem;
}

.home-word-lookup-form > label {
  color: var(--teal-900);
  font-size: 0.82rem;
  font-weight: 800;
}

.home-word-lookup-form > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.55rem;
}

.home-word-lookup-form input {
  min-inline-size: 0;
  inline-size: 100%;
  font-size: 1rem;
}

.home-word-lookup-feedback {
  min-block-size: 1.4rem;
}

.home-word-lookup-results {
  display: grid;
  gap: 0.35rem;
}

.home-word-lookup-results article {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.4rem;
  border-block-start: 1px solid var(--line);
}

.home-word-lookup-results span {
  color: var(--teal-900);
  font-size: 1.15rem;
  font-weight: 800;
}

.public-home-word-lookup {
  margin-block-start: 1rem;
  max-inline-size: 46rem;
}

.pinyin-error-report-entry {
  display: flex;
  justify-content: flex-start;
  border-block-start: 1px solid var(--line);
  padding-block-start: 0.65rem;
}

.pinyin-error-report-trigger {
  min-block-size: 2.75rem;
  border: 0;
  border-radius: 0.65rem;
  padding: 0.55rem 0.75rem;
  background: transparent;
  color: #b42318;
  font: inherit;
  font-weight: 900;
  text-decoration: underline;
  text-decoration-thickness: 0.1em;
  text-underline-offset: 0.22em;
  cursor: pointer;
}

.pinyin-error-report-trigger:hover,
.pinyin-error-report-trigger:active {
  background: #fff1f0;
  color: #8f1d14;
}

.pinyin-error-report-trigger:focus-visible {
  outline: 3px solid #b42318;
  outline-offset: 2px;
}

.pinyin-error-report-trigger:disabled {
  color: #7a6663;
  opacity: 0.72;
  cursor: not-allowed;
}

.pinyin-error-report-dialog {
  inline-size: min(46rem, calc(100vw - 2rem));
}

.pinyin-error-report-form {
  display: grid;
  gap: 1rem;
}

.pinyin-error-report-form .field {
  margin: 0;
}

.pinyin-error-report-form textarea,
.pinyin-error-report-form input,
.pinyin-error-report-form select {
  inline-size: 100%;
  font-size: 1rem;
}

.pinyin-error-report-form [aria-invalid="true"] {
  border-color: #b42318;
  box-shadow: 0 0 0 2px rgba(180, 35, 24, 0.12);
}

.pinyin-error-report-context {
  border: 1px solid #b8d8d1;
  border-radius: 0.9rem;
  padding: 0.9rem;
  background: #f4fbf9;
}

.pinyin-error-report-context h3 {
  margin: 0 0 0.65rem;
  color: var(--teal-900);
  font-size: 1rem;
}

.pinyin-error-report-context dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem 1rem;
  margin: 0;
}

.pinyin-error-report-context dl > div {
  min-inline-size: 0;
}

.pinyin-error-report-context dl > .full {
  grid-column: 1 / -1;
}

.pinyin-error-report-context dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.pinyin-error-report-context dd {
  margin: 0.18rem 0 0;
  overflow-wrap: anywhere;
  color: var(--teal-900);
  font-weight: 750;
}

.pinyin-error-report-status {
  min-block-size: 1.5rem;
  margin: 0;
  color: var(--teal-800);
  font-weight: 750;
}

.pinyin-error-report-status.is-error {
  color: #b42318;
}

.pinyin-error-report-received {
  display: grid;
  justify-items: start;
  gap: 1rem;
  padding: 0.5rem;
}

.pinyin-error-report-received h2,
.pinyin-error-report-received p {
  margin: 0;
}

.pinyin-error-report-received > div {
  display: grid;
  gap: 0.25rem;
  inline-size: 100%;
  border: 1px solid #b8d8d1;
  border-radius: 0.8rem;
  padding: 0.85rem;
  background: #f4fbf9;
}

.pinyin-error-report-received > div span {
  color: var(--muted);
  font-size: 0.82rem;
}

.pinyin-error-report-received > div strong {
  color: var(--teal-900);
  font-size: 1.1rem;
  overflow-wrap: anywhere;
}

@media (max-width: 700px) {
  .pinyin-error-report-entry,
  .pinyin-error-report-trigger {
    inline-size: 100%;
  }

  .pinyin-error-report-trigger {
    min-block-size: 3rem;
    text-align: start;
  }

  .pinyin-error-report-context dl {
    grid-template-columns: 1fr;
  }

  .pinyin-error-report-context dl > .full {
    grid-column: auto;
  }

  .pinyin-error-report-form .modal-actions .button {
    flex: 1 1 100%;
  }
}

.school-practice-search {
  inline-size: min(100%, 34rem);
  margin-inline-start: auto;
}

.points-redemption-page,
.redemption-list,
.question-report-admin-list {
  display: grid;
  gap: 1rem;
}

.points-redemption-callout,
.points-redemption-form,
.redemption-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.points-redemption-form .field {
  flex: 1 1 22rem;
  margin: 0;
}

.redemption-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  background: #fbfffe;
}

.redemption-card > div:first-child {
  min-inline-size: 0;
  display: grid;
  gap: 0.35rem;
}

.redemption-card code {
  inline-size: fit-content;
  max-inline-size: 100%;
  overflow-wrap: anywhere;
  color: var(--teal-900);
  font-size: 1rem;
  font-weight: 800;
}

.question-report-disclosure {
  border-block-start: 1px solid var(--line);
  padding-block-start: 0.75rem;
}

.question-report-disclosure > summary {
  inline-size: fit-content;
  min-block-size: 48px;
  display: flex;
  align-items: center;
  border: 1px solid #efaaa3;
  border-radius: var(--radius);
  padding: 0.55rem 0.75rem;
  background: #fff1ef;
  color: #b42318;
  font-weight: 850;
  cursor: pointer;
}

.question-report-disclosure > summary:hover,
.question-report-disclosure > summary:focus-visible {
  border-color: #d92d20;
  background: #ffe4e1;
}

.question-report-form {
  display: grid;
  gap: 0.65rem;
  padding-block-start: 0.5rem;
}

.question-report-form label {
  font-weight: 750;
}

.question-report-form textarea {
  min-block-size: 6.5rem;
  resize: vertical;
  font-size: 1rem;
}

.question-report-form .button {
  justify-self: start;
}

.student-practice-profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  gap: 1rem;
}

.voice-topic-card small {
  color: var(--muted);
  font-weight: 750;
}

.speech-topic-admin-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.85fr) minmax(22rem, 1.15fr);
  gap: 1rem;
  align-items: start;
}

.speech-topic-form,
.speech-topic-list {
  display: grid;
  gap: 0.75rem;
}

.speech-topic-form {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--surface-soft);
}

.speech-topic-form h4 {
  grid-column: 1 / -1;
  margin: 0;
}

.speech-topic-modes {
  display: flex;
  gap: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.7rem;
}

.speech-topic-list .list-item {
  align-items: flex-start;
}

.speech-topic-list .list-item > div:first-child {
  display: grid;
  gap: 0.35rem;
}

@media (max-width: 900px) {
  .speech-topic-admin-layout {
    grid-template-columns: 1fr;
  }
}

.student-practice-profile-form {
  display: grid;
  gap: 0.9rem;
}

.student-practice-profile-form h3,
.student-practice-profile-form p {
  margin: 0;
}

.student-avatar-upload {
  display: grid;
  gap: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.8rem;
  background: var(--surface-soft);
}

.student-avatar-upload .field,
.student-avatar-upload .hint {
  margin: 0;
}

.student-avatar-upload progress {
  inline-size: min(15rem, 100%);
  block-size: 0.75rem;
  accent-color: var(--teal-700);
}

.family-child-create {
  margin-block-end: 1rem;
}

.family-child-create > summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  min-height: 3rem;
}

.family-child-create > summary span {
  color: var(--muted);
  font-size: 0.9rem;
}

.family-child-create .mini-form {
  margin-block-start: 1rem;
}

.member-self-service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 21rem), 1fr));
  gap: 1rem;
  margin-block-end: 1rem;
}

.managed-member-create > summary,
.managed-member-bind > summary {
  display: grid;
  gap: 0.2rem;
  cursor: pointer;
}

.managed-member-create > summary span,
.managed-member-bind > summary span {
  color: var(--muted);
  font-size: 0.86rem;
}

.managed-member-create .mini-form,
.managed-member-bind .mini-form {
  margin-block-start: 1rem;
}

.institution-member-tree,
.institution-tree-grid,
.institution-assignment-list {
  display: grid;
  gap: 0.8rem;
}

.institution-tree-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
}

.institution-tree-teacher {
  min-width: 0;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.institution-tree-teacher header,
.institution-tree-teacher li,
.institution-student-assignment {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
}

.institution-tree-teacher header > div,
.institution-tree-teacher li > span,
.institution-student-assignment > span {
  display: grid;
  min-width: 0;
}

.institution-tree-teacher ul {
  display: grid;
  gap: 0.45rem;
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
}

.institution-tree-teacher li {
  padding-block-start: 0.55rem;
  border-block-start: 1px solid var(--line);
}

.institution-student-assignment {
  display: grid;
  grid-template-columns: minmax(10rem, 1fr) minmax(11rem, 1fr) auto;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.institution-student-assignment :where(select, button) { min-height: 2.85rem; }

@media (max-width: 900px) {
  .institution-student-assignment {
    grid-template-columns: minmax(0, 1fr);
  }

  .billing-course-charge-heading {
    grid-template-columns: minmax(0, 1fr);
  }

  .billing-course-charge-heading ol {
    align-items: flex-start;
    flex-direction: column;
  }

  .billing-course-charge-heading li:not(:last-child)::after { content: none; }

  .institution-student-assignment .button {
    inline-size: 100%;
  }
}

body[data-shell="app"] .admin-menu-tree {
  display: grid;
  gap: 0.35rem;
}
body[data-shell="app"] .admin-menu-group {
  min-inline-size: 0;
}
body[data-shell="app"] .admin-menu-group-toggle {
  display: flex;
  min-block-size: 2.35rem;
  inline-size: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border: 0;
  border-radius: 6px;
  padding: 0.45rem 0.7rem;
  background: color-mix(in srgb, var(--brand-on-primary-strong, #fff) 6%, transparent);
  color: color-mix(in srgb, var(--brand-on-primary-strong, #fff) 70%, transparent);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  text-align: start;
  cursor: pointer;
}
body[data-shell="app"] .admin-menu-group-toggle:hover,
body[data-shell="app"] .admin-menu-group-toggle:focus-visible {
  background: color-mix(in srgb, var(--brand-on-primary-strong, #fff) 13%, transparent);
  color: var(--brand-on-primary-strong, #fff);
}
body[data-shell="app"] .admin-menu-chevron {
  transition: transform 160ms ease;
}
body[data-shell="app"] .admin-menu-group.is-open .admin-menu-chevron {
  transform: rotate(180deg);
}
body[data-shell="app"] .admin-menu-items {
  display: grid;
  gap: 0.1rem;
  margin-block-start: 0.15rem;
  padding-inline-start: 0.35rem;
}
body[data-shell="app"] .admin-menu-items[hidden] {
  display: none;
}
body[data-shell="app"] .admin-menu-item {
  min-block-size: 2.4rem !important;
  padding-block: 0.5rem !important;
  padding-inline-start: 1rem !important;
  font-size: 0.86rem !important;
}

.family-child-card {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

.family-child-card-header,
.family-learning-banner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.85rem;
}

.family-child-card-header h3,
.family-child-card-header p,
.family-learning-banner span,
.family-learning-banner strong,
.family-learning-banner small {
  margin: 0;
}

.family-child-actions {
  justify-content: flex-end;
  max-inline-size: 24rem;
}

.family-child-avatar {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  overflow: hidden;
  background: var(--teal-100);
  color: var(--teal-900);
  font-size: 1.3rem;
  font-weight: 900;
}

.family-child-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.child-login-form,
.child-login-form fieldset,
.child-device-panel {
  display: grid;
  gap: 0.8rem;
}

.child-login-form fieldset,
.child-device-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem;
}

.child-login-form legend {
  padding-inline: 0.35rem;
  color: var(--teal-900);
  font-weight: 800;
}

.child-device-list {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.child-device-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-width: 0;
  padding-block: 0.55rem;
  border-block-start: 1px solid var(--line);
}

.child-device-list span {
  display: grid;
  min-width: 0;
}

.child-device-list strong {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.child-device-list .tag {
  font-style: normal;
  font-size: 0.72rem;
}

.child-device-list .tag.muted {
  border-color: #c8d1cf;
  background: #eef2f1;
  color: #556864;
}

.child-device-list small {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.family-learning-banner {
  position: sticky;
  top: 0.5rem;
  z-index: 8;
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.family-learning-banner > div {
  display: grid;
  min-width: 0;
}

@media (max-width: 620px) {
  .family-child-card-header,
  .family-learning-banner {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .family-child-card-header .button,
  .family-learning-banner .button {
    grid-column: 1 / -1;
    min-height: 3rem;
  }

  .family-child-actions,
  .family-student-context {
    grid-column: 1 / -1;
    inline-size: 100%;
  }

  .family-child-actions :where(.button, .text-button) {
    flex: 1 1 100%;
    min-block-size: 3rem;
  }

  .family-student-context {
    align-items: stretch;
    flex-direction: column;
  }

  .family-student-context .text-button {
    min-block-size: 2.75rem;
  }

  .family-child-create > summary {
    display: grid;
    justify-content: start;
  }

  .child-device-list li {
    align-items: stretch;
    flex-direction: column;
  }

  .child-device-list .text-button {
    min-block-size: 2.75rem;
    align-self: stretch;
  }

  .institution-student-assignment {
    grid-template-columns: 1fr;
  }

  .institution-student-assignment .button {
    width: 100%;
  }
}

.student-textbook-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.8rem;
}

.student-textbook-options legend {
  padding-inline: 0.35rem;
  color: var(--teal-900);
  font-weight: 800;
}

.student-textbook-options > .form-error {
  grid-column: 1 / -1;
  margin: 0;
}

.student-textbook-option {
  min-inline-size: 0;
  min-block-size: 3rem;
  display: grid;
  grid-template-columns: 1.2rem minmax(0, 1fr);
  align-items: center;
  gap: 0.65rem;
  border: 1px solid #c8ddd8;
  border-radius: var(--radius);
  padding: 0.7rem 0.8rem;
  background: #fff;
  cursor: pointer;
}

.student-textbook-option:hover {
  border-color: var(--teal-500);
  background: #f6fffd;
}

.student-textbook-option:has(input:checked) {
  border-color: var(--teal-700);
  background: var(--teal-100);
  color: var(--teal-900);
}

.student-textbook-option.is-stale:has(input:checked) {
  border-color: #b85b4a;
  background: #fff1ed;
  color: #7a2f24;
  cursor: not-allowed;
}

.student-textbook-option input[type="checkbox"],
.student-textbook-option input[type="radio"] {
  inline-size: 1.15rem;
  block-size: 1.15rem;
  min-block-size: 0;
  margin: 0;
  border: 0;
  padding: 0;
  accent-color: var(--teal-700);
}

.student-textbook-option input[type="checkbox"]:focus-visible,
.student-textbook-option input[type="radio"]:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}

.student-textbook-option span {
  min-inline-size: 0;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.practice-profile-notice,
.practice-profile-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.practice-profile-notice p,
.practice-profile-summary p {
  margin: 0.25rem 0 0;
}

@media (max-width: 560px) {
  .practice-profile-notice .button {
    inline-size: 100%;
  }
}

.question-report-success {
  margin: 0;
  border-block-start: 1px solid var(--line);
  padding-block-start: 0.75rem;
  color: var(--teal-700);
  font-weight: 750;
}

.question-report-admin-card {
  display: grid;
  gap: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  background: #fbfffe;
}

.question-report-card-head,
.question-report-card-head > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.question-report-card-head > div {
  justify-content: flex-start;
}

.question-report-admin-card dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
}

.question-report-admin-card dl > div {
  border-radius: calc(var(--radius) * 0.7);
  padding: 0.7rem;
  background: #fff;
}

.question-report-admin-card dl .full {
  grid-column: 1 / -1;
}

.question-report-admin-card dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.question-report-admin-card dd {
  margin: 0.25rem 0 0;
  overflow-wrap: anywhere;
}

.question-report-history {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 0.7rem 0.8rem;
  background: #fff;
}

.question-report-history summary {
  color: var(--teal-800);
  font-weight: 800;
  cursor: pointer;
}

.question-report-history ol {
  display: grid;
  gap: 0.55rem;
  margin: 0.7rem 0 0;
  padding-inline-start: 1.25rem;
}

.question-report-history li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.55rem;
}

.question-report-history li small {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.question-report-admin-fields {
  display: grid;
  grid-template-columns: minmax(10rem, 0.35fr) minmax(16rem, 1fr) auto;
  gap: 0.75rem;
  align-items: end;
}

.question-report-admin-fields .field {
  margin: 0;
}

.question-report-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-block-start: 1rem;
  border-block-start: 1px solid var(--line);
  padding-block-start: 0.85rem;
  color: var(--muted);
  font-weight: 750;
}

/* Task 110: centrally managed site brand and responsive previews. */
.site-brand-admin {
  display: grid;
  gap: 1.25rem;
  max-width: 1180px;
  margin-inline: auto;
}

.site-brand-admin > form {
  display: grid;
  gap: 1.25rem;
}

.site-brand-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .9rem 1rem;
}

.site-brand-wide { grid-column: 1 / -1; }

.site-brand-color-control {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  align-items: center;
  gap: .7rem;
  min-height: 2.75rem;
}

.site-brand-color-control input[type="color"] {
  inline-size: 3.25rem;
  block-size: 2.6rem;
  padding: .15rem;
}

.site-brand-color-control output {
  font: 700 .88rem/1.2 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.site-brand-media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .8rem;
}

.site-brand-media-field {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  align-items: center;
  gap: .9rem;
  min-width: 0;
  padding: .85rem;
  border: 1px solid var(--line, #d7e0de);
  border-radius: 8px;
  background: #fff;
}

.site-brand-media-preview {
  display: grid;
  place-items: center;
  inline-size: 92px;
  block-size: 92px;
  overflow: hidden;
  border: 1px solid #d7e0de;
  border-radius: 6px;
  background: #f8faf9;
}

.site-brand-media-preview img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: contain;
}

.site-brand-media-controls {
  display: grid;
  gap: .55rem;
  min-width: 0;
}

.site-brand-media-controls input[type="file"] { max-width: 100%; }

.site-brand-live-preview {
  display: grid;
  gap: .8rem;
  padding: 1rem;
  border-block: 1px solid var(--line, #d7e0de);
}

.site-brand-live-preview h4 { margin: 0; }

.site-brand-live-preview .segmented-control {
  display: inline-grid;
  grid-auto-flow: column;
  border: 1px solid #c9d5d2;
  border-radius: 6px;
  overflow: hidden;
}

.site-brand-live-preview .segmented-control button {
  min-width: 4.25rem;
  min-height: 2.35rem;
  border: 0;
  border-inline-end: 1px solid #c9d5d2;
  border-radius: 0;
  background: #fff;
  color: #24312f;
  font-weight: 700;
}

.site-brand-live-preview .segmented-control button:last-child { border-inline-end: 0; }
.site-brand-live-preview .segmented-control button.is-active { background: #173f3a; color: #fff; }

.site-brand-preview-frame {
  width: min(100%, 960px);
  min-height: 340px;
  margin-inline: auto;
  overflow: hidden;
  border: 1px solid #c8d4d1;
  border-radius: 8px;
  background: #f4f8f7;
  box-shadow: 0 12px 28px rgba(21, 48, 44, .09);
}

.site-brand-preview-frame.is-tablet { max-width: 760px; }
.site-brand-preview-frame.is-mobile { max-width: 390px; }

.site-brand-preview-frame > header {
  display: flex;
  align-items: center;
  gap: .75rem;
  min-height: 74px;
  padding: .7rem 1rem;
  border-block-end: 3px solid var(--brand-preview-color, #063f3c);
  background: #fff;
}

.site-brand-preview-frame > header img {
  inline-size: 54px;
  block-size: 54px;
  object-fit: contain;
}

.site-brand-preview-frame > header div { display: grid; min-width: 0; }
.site-brand-preview-frame > header strong,
.site-brand-preview-frame > header span { overflow-wrap: anywhere; }
.site-brand-preview-frame > header strong { font-size: 1.05rem; }
.site-brand-preview-frame > header span { color: #596965; font-size: .84rem; }

.site-brand-preview-frame > main {
  display: grid;
  align-content: center;
  justify-items: start;
  gap: .65rem;
  min-height: 260px;
  padding: clamp(1rem, 4vw, 2.5rem);
}

.site-brand-preview-frame > main h3,
.site-brand-preview-frame > main p { margin: 0; max-width: 42rem; overflow-wrap: anywhere; }
.site-brand-preview-frame > main h3 { color: #17211f; font-size: 1.55rem; }
.site-brand-preview-frame > main .button { background: var(--brand-preview-color, #063f3c); }
.site-brand-actions { align-items: center; }

@media (max-width: 820px) {
  .site-brand-form-grid,
  .site-brand-media-grid { grid-template-columns: 1fr; }
  .site-brand-wide { grid-column: auto; }
}

@media (max-width: 520px) {
  body.site-brand-admin-active #bottom-nav { display: none !important; }
  .site-brand-media-field { grid-template-columns: 72px minmax(0, 1fr); padding: .7rem; }
  .site-brand-media-preview { inline-size: 72px; block-size: 72px; }
  .site-brand-live-preview { padding-inline: 0; }
  .site-brand-live-preview .panel-title-row { align-items: stretch; }
  .site-brand-live-preview .segmented-control { width: 100%; }
  .site-brand-live-preview .segmented-control button { min-width: 0; }
  .site-brand-preview-frame { border-inline: 0; border-radius: 0; }
  .site-brand-actions .button { flex: 1 1 100%; }
}

.question-report-list-table {
  inline-size: 100%;
  min-inline-size: 48rem;
  table-layout: fixed;
}

.question-report-list-table th:nth-child(1) { inline-size: 9rem; }
.question-report-list-table th:nth-child(2) { inline-size: 9rem; }
.question-report-list-table th:nth-child(4) { inline-size: 7rem; }
.question-report-list-table th:nth-child(5) { inline-size: 11rem; }
.question-report-list-table th:nth-child(6) { inline-size: 7rem; }
.question-report-list-table td { vertical-align: top; overflow-wrap: anywhere; }
.question-report-list-table td small { display: block; margin-block-start: 0.2rem; color: var(--muted); }

.question-report-dialog {
  inline-size: min(54rem, calc(100vw - 2rem));
  max-block-size: calc(100dvh - 2rem);
  padding: 0;
  overflow: hidden;
}

.question-report-dialog::backdrop {
  background: rgba(17, 24, 39, 0.56);
  backdrop-filter: blur(2px);
}

.question-report-dialog > form {
  display: grid;
  gap: 1rem;
  max-block-size: calc(100dvh - 2rem);
  padding: 1.25rem;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.question-report-dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.question-report-dialog-head h3,
.question-report-dialog-head p { margin-block: 0.4rem 0; overflow-wrap: anywhere; }

.question-report-detail-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
}

.question-report-detail-list > div {
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.question-report-detail-list .full { grid-column: 1 / -1; }
.question-report-detail-list dt { color: var(--muted); font-size: 0.8rem; font-weight: 750; }
.question-report-detail-list dd { margin: 0.25rem 0 0; overflow-wrap: anywhere; white-space: pre-wrap; }
.question-report-dialog .question-report-admin-fields { grid-template-columns: minmax(10rem, 0.35fr) minmax(16rem, 1fr); }
.question-report-dialog .question-report-admin-fields .question-report-dialog-status,
.question-report-dialog .question-report-admin-fields .row-actions { grid-column: 1 / -1; }
.question-report-dialog-status { min-block-size: 1.5rem; margin: 0; color: var(--muted); }

.points-redemption-admin .inline-management-form {
  align-items: end;
}

.point-activity-grid,
.point-activity-admin-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr));
  gap: 1rem;
}

.point-activity-card,
.point-activity-admin-card {
  display: grid;
  gap: 0.8rem;
  min-inline-size: 0;
}

.point-activity-card > img {
  inline-size: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: calc(var(--radius) * 0.75);
}

.point-activity-card-head,
.point-activity-admin-head {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
}

.point-activity-card h3,
.point-activity-card p,
.point-activity-admin-card h4 {
  margin: 0;
}

.point-activity-card dl,
.point-activity-admin-card dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 0;
}

.point-activity-card dl > div,
.point-activity-admin-card dl > div {
  padding: 0.65rem;
  border-radius: calc(var(--radius) * 0.6);
  background: rgba(255, 255, 255, 0.72);
}

.point-activity-card dt,
.point-activity-admin-card dt {
  color: var(--muted);
  font-size: 0.78rem;
}

.point-activity-card dd,
.point-activity-admin-card dd {
  margin: 0.2rem 0 0;
  overflow-wrap: anywhere;
}

.point-activity-admin-card {
  padding: 1rem;
  border: 1px solid rgba(31, 41, 55, 0.15);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.7);
}

.point-earning-task-center {
  display: grid;
  gap: 1rem;
}

.point-earning-task-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 1rem;
}

.point-earning-task-card {
  display: grid;
  gap: 0.75rem;
  min-inline-size: 0;
  padding: 1rem;
  border: 1px solid rgba(31, 41, 55, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.7);
}

.point-earning-task-card h4,
.point-earning-task-card p {
  margin: 0;
}

.point-earning-submission-history {
  display: grid;
  gap: 0.55rem;
  min-inline-size: 0;
  margin-block-start: 0.25rem;
  padding-block-start: 0.75rem;
  border-block-start: 1px solid rgba(31, 41, 55, 0.12);
}

.point-earning-submission-history h5 {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.point-earning-submission-history-list {
  display: grid;
  gap: 0.55rem;
  min-inline-size: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.point-earning-submission-history-item {
  display: grid;
  gap: 0.35rem;
  min-inline-size: 0;
  padding: 0.65rem 0.75rem;
  border: 1px solid rgba(31, 41, 55, 0.11);
  border-radius: calc(var(--radius) * 0.65);
  background: rgba(255, 255, 255, 0.58);
}

.point-earning-submission-history-head,
.point-earning-submission-history-meta > div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.65rem;
  min-inline-size: 0;
  align-items: baseline;
}

.point-earning-submission-title {
  min-inline-size: 0;
  overflow-wrap: anywhere;
}

.point-earning-submission-history-meta {
  display: grid;
  gap: 0.2rem;
  min-inline-size: 0;
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.point-earning-submission-history-meta dt,
.point-earning-submission-history-meta dd {
  margin: 0;
}

.point-earning-submission-history-meta dt {
  flex: 0 0 auto;
  font-weight: 650;
}

.point-earning-submission-history-meta dd {
  min-inline-size: 0;
  overflow-wrap: anywhere;
}

.point-earning-task-card .status-pending {
  border-color: rgba(180, 83, 9, 0.35);
  background: rgba(251, 191, 36, 0.16);
}

.point-earning-task-card .status-approved {
  border-color: rgba(22, 101, 52, 0.35);
  background: rgba(74, 222, 128, 0.16);
}

.point-earning-task-card .status-rejected {
  border-color: rgba(185, 28, 28, 0.35);
  background: rgba(248, 113, 113, 0.16);
}

.point-activity-admin-card:has(.point-activity-admin-cover) {
  grid-template-columns: minmax(7rem, 0.32fr) minmax(0, 1fr);
  align-items: start;
}

.point-activity-admin-cover {
  inline-size: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: calc(var(--radius) * 0.7);
  background: rgba(31, 41, 55, 0.06);
}

.point-activity-admin-body {
  display: grid;
  gap: 0.8rem;
  min-inline-size: 0;
}

.point-activity-image-preview {
  display: grid;
  grid-template-columns: minmax(6rem, 10rem) minmax(0, 1fr);
  gap: 0.75rem;
  align-items: center;
  margin: 0;
  padding: 0.65rem;
  border: 1px solid rgba(31, 41, 55, 0.14);
  border-radius: calc(var(--radius) * 0.65);
  background: rgba(255, 255, 255, 0.65);
}

.point-activity-image-preview img {
  inline-size: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: calc(var(--radius) * 0.5);
}

.point-activity-image-preview figcaption {
  color: var(--muted);
  font-size: 0.86rem;
}

.point-reward-type-dialog {
  inline-size: min(62rem, calc(100vw - 2rem));
  max-block-size: calc(100dvh - 2rem);
  padding: 1.25rem;
  overflow-y: auto;
}

.point-reward-type-dialog .plan-form-grid {
  margin-block: 1rem;
}

.point-reward-type-table select,
.points-redemption-admin select {
  max-inline-size: 18rem;
}

.member-group-members-dialog {
  inline-size: min(54rem, calc(100vw - 2rem));
  max-block-size: calc(100dvh - 2rem);
  padding: 1.25rem;
  overflow-y: auto;
}

.member-plan-extension-fields {
  display: grid;
  grid-template-columns: minmax(7rem, 1fr) minmax(7rem, 1fr);
  gap: 0.75rem;
  align-items: end;
}

.member-plan-extension-fields[hidden] {
  display: none;
}

.relation-selector {
  display: grid;
  gap: 0.55rem;
  min-inline-size: 0;
  padding: 0.65rem;
  border: 1px solid rgba(31, 41, 55, 0.12);
  border-radius: calc(var(--radius) * 0.65);
  background: rgba(255, 255, 255, 0.55);
}

.relation-selector[data-loading="true"] {
  opacity: 0.68;
}

.relation-selector select[multiple] {
  min-block-size: 8.5rem;
  max-inline-size: 100%;
}

.point-earning-admin-section {
  display: grid;
  gap: 0.75rem;
  margin-block: 1.25rem;
  padding-block: 1rem;
  border-block-start: 1px solid rgba(31, 41, 55, 0.14);
}

.point-earning-task-dialog {
  inline-size: min(58rem, calc(100vw - 2rem));
  max-block-size: calc(100dvh - 2rem);
  padding: 0;
  overflow: hidden;
}

.point-earning-task-editor {
  display: grid;
  gap: 1rem;
  max-block-size: calc(100dvh - 2rem);
  padding: 1.25rem;
  overflow-y: auto;
}

.point-redemption-record-admin {
  margin-block-start: 1.5rem;
  padding-block-start: 1.25rem;
  border-block-start: 1px solid rgba(31, 41, 55, 0.14);
}

.point-activity-dialog {
  inline-size: min(68rem, calc(100vw - 2rem));
  max-block-size: calc(100dvh - 2rem);
  padding: 0;
  overflow: hidden;
}

.point-activity-dialog::backdrop {
  background: rgba(17, 24, 39, 0.56);
  backdrop-filter: blur(2px);
}

.member-point-award-dialog {
  inline-size: min(36rem, calc(100vw - 2rem));
  max-block-size: calc(100dvh - 2rem);
  padding: 0;
  overflow: hidden;
}

.member-point-award-dialog::backdrop {
  background: rgba(17, 24, 39, 0.56);
  backdrop-filter: blur(2px);
}

.member-point-award-dialog > form {
  display: grid;
  gap: 1rem;
  max-block-size: calc(100dvh - 2rem);
  padding: 1.25rem;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.member-point-award-dialog .dialog-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.member-point-award-results {
  position: static;
  margin-block-start: 0.5rem;
  max-block-size: 12rem;
  box-shadow: none;
}

.selected-member-summary {
  margin: 0.6rem 0 0;
  padding: 0.65rem 0.75rem;
  border: 1px solid rgba(31, 41, 55, 0.14);
  border-radius: 6px;
  background: rgba(64, 91, 132, 0.08);
  overflow-wrap: anywhere;
}

.point-activity-editor {
  display: grid;
  gap: 1rem;
  max-block-size: calc(100dvh - 2rem);
  padding: 1.25rem;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.point-activity-editor fieldset,
.point-limit-field {
  min-inline-size: 0;
  margin: 0;
  padding: 1rem;
  border: 1px solid rgba(31, 41, 55, 0.16);
  border-radius: calc(var(--radius) * 0.75);
}

.point-limit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.point-course-trial-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  min-inline-size: 0;
}

.point-course-trial-fields > .field {
  min-inline-size: 0;
}

.point-limit-field {
  display: grid;
  gap: 0.55rem;
}

.point-limit-field label {
  display: flex;
  gap: 0.45rem;
  align-items: center;
}

.point-limit-field input[type="number"] {
  min-inline-size: 0;
  inline-size: 7rem;
}

@media (max-width: 640px) {
  .point-activity-grid,
  .point-activity-admin-list,
  .point-earning-task-grid,
  .point-limit-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .point-course-trial-fields {
    grid-template-columns: minmax(0, 1fr);
  }

  .point-activity-card dl,
  .point-activity-admin-card dl {
    grid-template-columns: minmax(0, 1fr);
  }

  .point-activity-dialog {
    inline-size: calc(100vw - 1rem);
    max-block-size: calc(100dvh - 1rem);
  }

  .member-point-award-dialog {
    inline-size: 100vw;
    max-inline-size: none;
    block-size: 100dvh;
    max-block-size: none;
    margin: 0;
    border-radius: 0;
  }

  .member-point-award-dialog > form {
    max-block-size: 100dvh;
    padding: 1rem;
  }

  .point-activity-editor {
    max-block-size: calc(100dvh - 1rem);
    padding: 0.9rem;
  }

  .point-activity-card .button,
  .point-activity-admin-card .text-button,
  .point-redemption-record-admin .button {
    min-block-size: 3rem;
  }

  .member-combobox {
    flex-basis: 100%;
    inline-size: 100%;
    min-inline-size: 0;
  }

  .member-combobox-results button,
  .member-combobox-input .text-button {
    min-block-size: 3rem;
  }

  .word-lookup-form,
  .word-lookup-result {
    grid-template-columns: minmax(0, 1fr);
  }

  .word-lookup-result dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .home-word-lookup-form > div {
    grid-template-columns: minmax(0, 1fr);
  }

  .home-word-lookup-form .button,
  .school-practice-search {
    inline-size: 100%;
  }

  .points-redemption-callout,
  .points-redemption-form,
  .redemption-card {
    align-items: stretch;
    flex-direction: column;
  }

  .points-redemption-callout .button,
  .points-redemption-form .button,
  .redemption-card .row-actions,
  .redemption-card .button,
  .question-report-form .button {
    inline-size: 100%;
  }

  .question-report-admin-card dl,
  .question-report-admin-fields {
    grid-template-columns: minmax(0, 1fr);
  }

  .question-report-admin-card dl .full {
    grid-column: 1;
  }

  .question-report-history li {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .question-report-pagination {
    align-items: stretch;
    flex-direction: column;
  }

  .question-report-table-wrap { overflow: visible; border: 0; }
  .question-report-list-table { display: block; min-inline-size: 0; }
  .question-report-list-table thead { display: none; }
  .question-report-list-table tbody,
  .question-report-list-table tr,
  .question-report-list-table td { display: block; inline-size: 100%; }
  .question-report-list-table tr { margin-block-end: 0.75rem; padding: 0.75rem; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
  .question-report-list-table td { display: grid; grid-template-columns: 7rem minmax(0, 1fr); gap: 0.6rem; padding: 0.35rem 0; border: 0; }
  .question-report-list-table td::before { content: attr(data-label); color: var(--muted); font-size: 0.8rem; font-weight: 750; }
  .question-report-list-table td .text-button { justify-self: start; min-block-size: 3rem; }
  .question-report-dialog { inline-size: 100vw; max-inline-size: none; block-size: 100dvh; max-block-size: none; margin: 0; border-radius: 0; }
  .question-report-dialog > form { max-block-size: 100dvh; padding: 1rem; }
  .question-report-detail-list,
  .question-report-dialog .question-report-admin-fields { grid-template-columns: minmax(0, 1fr); }
  .question-report-detail-list .full,
  .question-report-dialog .question-report-admin-fields .question-report-dialog-status,
  .question-report-dialog .question-report-admin-fields .row-actions { grid-column: 1; }
}

.unbilled-lesson-summary {
  display: grid;
  gap: 0.6rem;
  margin-block: 1rem;
  border-inline-start: 4px solid #e07945;
  padding: 0.85rem 1rem;
  background: #fff8f2;
}

.split-row .button:hover:not(:disabled),
.split-row .button:focus-visible,
.split-row .button:disabled {
  color: #ffffff;
}

.split-row .button:disabled {
  opacity: 0.72;
}

.course-detail-notes {
  margin-block-start: 1rem;
  border-block-start: 1px solid #dce7e3;
  border-block-end: 1px solid #dce7e3;
  padding-block: 0.8rem;
}

.course-detail-notes summary {
  color: #164c43;
  font-weight: 750;
  cursor: pointer;
}

.course-detail-notes[open] {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.course-detail-notes[open] summary {
  grid-column: 1 / -1;
}

.course-detail-notes strong {
  color: #687973;
  font-size: 0.78rem;
}

.course-detail-notes p {
  margin: 0.35rem 0 0;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.course-editor-dialog {
  inline-size: min(68rem, calc(100vw - 2rem));
}

.course-editor-modal-content .mini-form {
  margin: 0;
}

.course-admin-host {
  overflow: visible;
}

@media (max-width: 1500px) {
  .course-workspace,
  .dashboard-columns {
    grid-template-columns: minmax(0, 1fr);
  }

}

@media (max-width: 980px) {
  body[data-shell="app"] .site-header {
    inline-size: min(18rem, 82vw);
    transform: translateX(-105%);
    transition: transform 180ms ease;
  }

  body[data-shell="app"].shell-menu-open .site-header {
    transform: translateX(0);
  }

  body[data-shell="app"] main {
    margin-inline-start: 0;
  }

  body[data-shell="app"] .page-head {
    flex-direction: row;
    align-items: center;
  }

  .shell-menu-button {
    display: inline-grid;
    place-items: center;
  }

  .dashboard-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .course-filter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  body[data-shell="login"] main {
    padding: 0;
  }

  body[data-shell="login"] .login-shell {
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  body[data-shell="login"] .login-page-copy {
    min-block-size: 13rem;
  }

  body[data-shell="app"] #app-view {
    padding-inline: 0.8rem;
  }

  body[data-shell="app"] .page-head {
    align-items: center;
    flex-direction: row;
    padding-block: 0.75rem;
  }

  body[data-shell="app"] .page-head .head-actions {
    inline-size: auto;
    margin-inline-start: auto;
  }

  body[data-shell="app"] .page-head #whatsapp-link {
    display: none;
  }

  body[data-shell="app"] .page-head [data-action="logout"] {
    min-block-size: 2.75rem;
    padding-inline: 0.75rem;
  }

  .admin-welcome {
    min-block-size: 0;
    align-items: stretch;
    flex-direction: column;
    padding: 1.15rem;
  }

  .admin-welcome .button {
    inline-size: 100%;
  }

  .dashboard-metrics,
  .dashboard-news-list,
  .dashboard-quick-links,
  .course-filter-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .dashboard-metrics button {
    min-block-size: 6.4rem;
  }

  .dashboard-schedule article {
    grid-template-columns: 3.5rem minmax(0, 1fr);
  }

  .dashboard-schedule article > .tag {
    grid-column: 2;
    justify-self: start;
  }

  .dashboard-news-list article {
    padding-inline-end: 0;
    padding-block-end: 2rem;
  }

  .dashboard-news-list time {
    inset-block: auto 0.55rem;
    inset-inline: 0 auto;
  }

  .course-list-heading {
    align-items: stretch;
  }

  .course-list-heading .row-actions,
  .course-list-heading .button {
    inline-size: 100%;
  }

  .admin-module-toolbar,
  .admin-module-toolbar .table-search,
  .admin-module-toolbar .button {
    inline-size: 100%;
  }

  .course-basic-grid,
  .course-detail-notes[open] {
    grid-template-columns: minmax(0, 1fr);
  }

  .course-detail-notes[open] summary {
    grid-column: 1;
  }
}

@media (max-width: 768px) {
  body[data-shell="app"] .site-header,
  body[data-shell="app"].shell-menu-open .site-header {
    position: static;
    inline-size: 100%;
    block-size: auto;
    transform: none;
    gap: 0.65rem;
    padding: 0.7rem 0.8rem;
  }

  body[data-shell="app"] .brand {
    inline-size: 100%;
    padding: 0 0 0.65rem;
  }

  body[data-shell="app"] .nav {
    display: flex;
    flex-wrap: nowrap;
    inline-size: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0 0 0.2rem;
  }

  body[data-shell="app"] .nav-section-label {
    display: none;
  }

  body[data-shell="app"] .nav .tab {
    flex: 0 0 auto;
    min-block-size: 2.65rem;
    border-inline-start: 0;
    border-block-end: 3px solid transparent;
    white-space: nowrap;
  }

  body[data-shell="app"] .nav .tab.is-active {
    border-inline-start-color: transparent;
    border-block-end-color: #e9823d;
  }

  .shell-menu-button {
    display: none;
  }

  body[data-shell="app"]:has(.practice-player.is-mini-game) .page-head {
    position: static;
  }
}

/* Tasks 9-12: public navigation, image-only home carousel and fixed mobile actions. */
.public-nav-toggle,
.account-nav {
  display: none;
}

body:not([data-shell])[data-role="public"] .site-header {
  display: grid;
  grid-template-columns: minmax(14rem, 1fr) auto minmax(14rem, 1fr);
  column-gap: clamp(1rem, 2.5vw, 2.5rem);
  inline-size: 100%;
}

body:not([data-shell])[data-role="public"] .site-header .brand {
  justify-self: start;
  min-inline-size: 0;
}

body:not([data-shell])[data-role="public"] .site-header .nav {
  justify-self: center;
  flex-wrap: nowrap;
  white-space: nowrap;
}

body:not([data-shell])[data-role="public"] .site-header .account-nav {
  display: flex;
  justify-self: end;
  gap: 0.65rem;
  align-items: center;
}

body:not([data-shell])[data-role="public"] main {
  padding-block-start: 0;
}

body[data-shell="login"] .account-nav,
body[data-shell="app"] .public-nav-toggle,
body[data-shell="login"] .public-nav-toggle {
  display: none;
}

body[data-shell="app"] .site-header .account-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-block-start: auto;
}

body[data-shell="app"] .site-header .account-nav .account-tab {
  inline-size: 100%;
  justify-content: center;
}

body[data-shell="app"]:not(.admin-module-active) .site-header .account-nav {
  justify-self: end;
  margin-block-start: 0;
}

body[data-shell="app"]:not(.admin-module-active) .site-header .account-nav .account-tab {
  inline-size: auto;
}

.public-hero-layout {
  max-inline-size: none;
  margin-block-start: 0;
  padding-block-start: 0;
  gap: 0;
}

.public-hero-layout::before {
  content: none;
  display: none;
}

.home-banner {
  position: relative;
  inline-size: calc(100% + var(--page-inline-gutter) + var(--page-inline-gutter));
  margin-inline: calc(0px - var(--page-inline-gutter));
  margin-block-start: 0;
  overflow: hidden;
  background: #fff9ed;
  box-shadow: 0 16px 42px rgba(18, 55, 50, 0.14);
}

.home-banner-viewport {
  overflow: hidden;
  inline-size: 100%;
  aspect-ratio: 3406 / 900;
  touch-action: pan-y;
  user-select: none;
}

.home-banner-track {
  display: flex;
  inline-size: 100%;
  block-size: 100%;
  transform: translate3d(calc(var(--home-banner-index, 0) * -100%), 0, 0);
  transition: transform 420ms cubic-bezier(0.22, 0.75, 0.28, 1);
  will-change: transform;
}

.home-banner-slide {
  min-inline-size: 100%;
  block-size: 100%;
  background: #fff9ed;
}

.home-banner-slide picture,
.home-banner-slide img {
  display: block;
  inline-size: 100%;
  block-size: 100%;
}

.home-banner-slide img {
  object-fit: contain;
}

.home-banner-arrow {
  position: absolute;
  z-index: 2;
  inset-block-start: 50%;
  inline-size: 3rem;
  block-size: 3rem;
  display: grid;
  place-items: center;
  transform: translateY(-50%);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  background: rgba(6, 63, 60, 0.78);
  color: #fff;
  font: 600 2rem/1 system-ui, sans-serif;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.home-banner-arrow:hover,
.home-banner-arrow:focus-visible {
  background: #063f3c;
}

.home-banner-arrow.is-prev {
  inset-inline-start: clamp(0.75rem, 2vw, 2rem);
}

.home-banner-arrow.is-next {
  inset-inline-end: clamp(0.75rem, 2vw, 2rem);
}

.home-banner-dots {
  position: absolute;
  z-index: 2;
  inset-inline-start: 50%;
  inset-block-end: 0.9rem;
  display: flex;
  gap: 0.55rem;
  transform: translateX(-50%);
}

.home-banner-dots button {
  position: relative;
  inline-size: 1.5rem;
  block-size: 1.5rem;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.home-banner-dots button::after {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  inline-size: .75rem;
  block-size: .75rem;
  transform: translate(-50%, -50%);
  border: 2px solid #fff;
  border-radius: 50%;
  background: rgba(6, 63, 60, 0.42);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.home-banner-dots button[aria-current="true"]::after {
  inline-size: 1.25rem;
  border-radius: 999px;
  background: #f5b83a;
}

.home-banner-toggle {
  position: absolute;
  z-index: 3;
  inset-inline-end: clamp(4rem, 5vw, 4.5rem);
  inset-block-end: .65rem;
  min-block-size: 2rem;
  padding: .3rem .65rem;
  border: 1px solid rgb(255 255 255 / 72%);
  border-radius: 6px;
  background: rgb(6 63 60 / 82%);
  color: #fff;
  font-size: .75rem;
  font-weight: 750;
  cursor: pointer;
}

.home-banner-toggle:hover,
.home-banner-toggle:focus-visible { background: #063f3c; }

.intro-panel.public-home-intro {
  isolation: auto;
  overflow: visible;
  min-block-size: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(20rem, 0.95fr);
  gap: clamp(1rem, 2.5vw, 2rem);
  align-items: start;
  max-inline-size: 78rem;
  margin: clamp(1.25rem, 3vw, 2.5rem) auto 0;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  border: 1px solid rgba(6, 63, 60, 0.14);
  border-radius: 12px;
  background: #fff;
  background-image: none;
  color: var(--ink-strong);
  box-shadow: var(--shadow-soft);
}

.intro-panel.public-home-intro::after {
  display: none;
}

.intro-panel.public-home-intro h1 {
  max-inline-size: 12ch;
  color: var(--ink-strong);
  font-size: clamp(2.15rem, 4.5vw, 4.25rem);
}

.intro-panel.public-home-intro p {
  color: #47615e;
}

.public-home-intro .public-home-word-lookup {
  margin: 0;
}

.public-home-intro .hero-actions {
  align-self: end;
}

.public-home-intro .button.ghost {
  border-color: var(--line);
  background: #ffffff;
  color: var(--teal-900);
  -webkit-text-fill-color: currentColor;
}

.public-home-intro .button.ghost:is(:hover, :active, :focus-visible) {
  border-color: var(--teal-500);
  background: var(--teal-100);
  color: var(--teal-900);
}

.public-home-intro .hero-strip {
  grid-column: 1 / -1;
  max-inline-size: none;
  margin-block-start: 0;
}

.public-home-intro .hero-strip span {
  border-color: rgba(6, 63, 60, 0.16);
  background: #f2faf7;
  color: #164c43;
}

.login-back-home {
  display: inline-flex;
  inline-size: fit-content;
  min-block-size: 3rem;
  align-items: center;
  padding-inline: 0.9rem;
  border: 1px solid #c9d8d3;
  border-radius: 8px;
  background: #fff;
  color: #164c43;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 8px 22px rgba(24, 54, 49, 0.08);
}

.login-back-home:hover,
.login-back-home:focus-visible {
  border-color: #e9823d;
  color: #9d421f;
}

.bottom-nav-icon,
.bottom-nav-label {
  display: block;
}

/* Tasks 39-40 */
.analytics-admin { display: grid; gap: 18px; min-width: 0; }
.analytics-filter-grid { display: grid; grid-template-columns: repeat(5, minmax(150px, 1fr)); gap: 12px; align-items: end; }
.analytics-searchable-filter { position: relative; min-width: 0; }
.analytics-searchable-filter > span { display: block; margin-bottom: 6px; font-size: .84rem; font-weight: 700; }
.analytics-combobox-button { width: 100%; min-height: 44px; padding: 9px 36px 9px 12px; overflow: hidden; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--text); text-align: left; text-overflow: ellipsis; white-space: nowrap; cursor: pointer; }
.analytics-combobox-button::after { position: absolute; right: 13px; content: "⌄"; color: var(--muted); }
.analytics-combobox-button:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent), transparent 72%); outline-offset: 1px; }
.analytics-combobox-popover { position: absolute; z-index: 30; top: calc(100% + 5px); left: 0; width: max(100%, 260px); max-width: min(420px, calc(100vw - 32px)); padding: 10px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); box-shadow: 0 16px 40px rgb(20 28 36 / .18); }
.analytics-combobox-popover input { width: 100%; min-height: 42px; }
.analytics-combobox-options { display: grid; max-height: 260px; margin-top: 8px; overflow-y: auto; overscroll-behavior: contain; }
.analytics-combobox-options button { display: grid; gap: 2px; width: 100%; padding: 9px 10px; border: 0; border-radius: 8px; background: transparent; color: var(--text); text-align: left; cursor: pointer; }
.analytics-combobox-options button:hover, .analytics-combobox-options button:focus-visible { background: var(--surface-2); }
.analytics-combobox-options button[aria-selected="true"] { background: color-mix(in srgb, var(--accent), transparent 88%); color: var(--accent-strong, var(--accent)); }
.analytics-combobox-options small { color: var(--muted); }
.analytics-tabs { display: flex; gap: 6px; min-width: 0; padding: 5px; overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; background: var(--surface-2); scrollbar-width: thin; }
.analytics-tabs button { flex: 1 0 auto; min-height: 42px; padding: 8px 15px; border: 0; border-radius: 10px; background: transparent; color: var(--muted); font: inherit; font-weight: 750; cursor: pointer; }
.analytics-tabs button.is-active, .analytics-tabs button[aria-selected="true"] { background: var(--surface); color: var(--accent-strong, var(--accent)); box-shadow: 0 2px 10px rgb(20 28 36 / .1); }
.analytics-tabs.is-subtabs { margin: 12px 0 16px; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; }
.analytics-tabs.is-subtabs button { flex: 0 0 auto; border-radius: 8px 8px 0 0; }
.analytics-section-card { min-width: 0; min-block-size: 720px; }
.analytics-section-card > [data-analytics-subpanel] { min-width: 0; }
.analytics-metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.analytics-metric { min-width: 0; padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.analytics-metric span { display: block; color: var(--muted); font-size: .82rem; }
.analytics-metric strong { display: block; margin-top: 5px; font-size: 1.55rem; line-height: 1.1; }
.analytics-trend { display: grid; gap: 8px; margin: 16px 0; }
.analytics-trend-row { display: grid; grid-template-columns: 88px minmax(120px, 1fr) minmax(190px, auto); gap: 10px; align-items: center; font-size: .82rem; }
.analytics-bars { display: grid; gap: 3px; }
.analytics-bars span { display: block; width: var(--bar); min-width: 2px; height: 7px; border-radius: 999px; background: #9bb2d0; }
.analytics-bars .is-complete { background: #2f7d63; }
.analytics-table small { display: block; margin-top: 3px; color: var(--muted); white-space: normal; }
.analytics-ranking .panel p { display: flex; justify-content: space-between; gap: 14px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.analytics-ranking .panel p:last-child { border-bottom: 0; }
.analytics-ranking-list p { display: flex; justify-content: space-between; gap: 14px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.analytics-ranking-list p:last-child { border-bottom: 0; }
.analytics-comparison-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.analytics-comparison { padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.analytics-comparison ul { list-style: none; padding: 0; margin: 8px 0 0; }
.analytics-comparison li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.analytics-comparison li small { grid-column: 1 / -1; color: var(--muted); }
.analytics-definitions p { margin: 8px 0; }
.practice-attempt-summary-card[data-practice-attempt-card] { cursor: pointer; }
.practice-attempt-summary-card[data-practice-attempt-card]:hover { border-color: var(--accent); }
.practice-history-detail { display: grid; gap: 18px; }
.practice-history-media { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0; align-items: center; }
.practice-history-media img, .practice-history-media video { width: min(100%, 420px); max-height: 280px; object-fit: contain; border-radius: 12px; background: var(--surface-2); }
.practice-history-media audio { width: min(100%, 420px); }
.practice-history-options { display: grid; gap: 7px; margin: 12px 0; padding: 0; list-style: none; }
.practice-history-options li { display: grid; grid-template-columns: 2rem minmax(0, 1fr); gap: 8px; align-items: start; padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px; }
.mobile-nav-admin { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(300px, .7fr); gap: 18px; align-items: start; }
.mobile-nav-scope-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 16px 0; }
.mobile-nav-item-grid { display: grid; gap: 12px; }
.mobile-nav-item-editor { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; padding: 14px; border: 1px solid var(--line); border-radius: 14px; }
.mobile-nav-item-editor legend { padding: 0 6px; font-weight: 700; }
.mobile-nav-item-editor .mobile-nav-type-panel { min-width: 0; }
.mobile-nav-item-editor select[multiple] { min-height: 6.5rem; }
.mobile-nav-icon-library-field { grid-column: span 2; }
.mobile-nav-icon-library { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 4px; }
.mobile-nav-icon-choice { display: grid; place-items: center; width: 36px; height: 36px; padding: 0; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); color: var(--text); font: inherit; font-weight: 800; cursor: pointer; }
.mobile-nav-icon-choice:hover, .mobile-nav-icon-choice:focus-visible { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent), transparent 82%); }
.mobile-nav-icon-choice[aria-pressed="true"] { border-color: var(--accent); background: color-mix(in srgb, var(--accent), white 86%); color: var(--accent-strong, var(--accent)); }
.mobile-nav-selected-icon { display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: 10px; align-items: center; margin-top: 5px; padding: 10px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.mobile-nav-selected-icon > span { display: grid; width: 46px; height: 46px; place-items: center; border-radius: 10px; background: var(--surface-2); color: var(--accent-strong, var(--accent)); }
.mobile-nav-selected-icon strong, .mobile-nav-selected-icon small { display: block; }
.mobile-nav-selected-icon small { margin-top: 2px; color: var(--muted); overflow-wrap: anywhere; }
.mobile-nav-vector-icon, .mobile-nav-picker-svg { width: 1.55rem; height: 1.55rem; color: currentColor; }
.mobile-nav-legacy-icons { margin-top: 8px; }
.mobile-nav-legacy-icons summary { color: var(--muted); cursor: pointer; font-size: .86rem; }
.mobile-nav-icon-picker { width: min(960px, calc(100vw - 24px)); max-height: min(820px, calc(100dvh - 24px)); padding: 0; border: 0; border-radius: 18px; background: var(--surface); color: var(--text); box-shadow: 0 28px 80px rgb(20 28 36 / .26); }
.mobile-nav-icon-picker::backdrop { background: rgb(18 25 32 / .56); backdrop-filter: blur(3px); }
.mobile-nav-icon-picker-shell { display: grid; min-height: 540px; max-height: calc(100dvh - 24px); grid-template-rows: auto auto auto minmax(0, 1fr); overflow: hidden; }
.mobile-nav-icon-picker header { display: flex; justify-content: space-between; gap: 16px; align-items: start; padding: 20px 22px 12px; border-bottom: 1px solid var(--line); }
.mobile-nav-icon-picker header h3 { margin: 2px 0 4px; }
.mobile-nav-icon-picker-toolbar { display: grid; grid-template-columns: minmax(230px, 1fr) auto; gap: 14px; align-items: end; padding: 14px 22px 8px; }
.mobile-nav-icon-style-tabs { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface-2); }
.mobile-nav-icon-style-tabs button, .mobile-nav-icon-category-tabs button { border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.mobile-nav-icon-style-tabs button { padding: 8px 14px; border-radius: 8px; }
.mobile-nav-icon-style-tabs button[aria-pressed="true"] { background: var(--surface); color: var(--accent-strong, var(--accent)); box-shadow: 0 1px 5px rgb(20 28 36 / .12); }
.mobile-nav-icon-category-tabs { display: flex; gap: 4px; padding: 6px 22px 12px; overflow-x: auto; scrollbar-width: thin; }
.mobile-nav-icon-category-tabs button { flex: 0 0 auto; padding: 7px 10px; border-bottom: 2px solid transparent; }
.mobile-nav-icon-category-tabs button[aria-selected="true"] { color: var(--accent-strong, var(--accent)); border-bottom-color: currentColor; }
[data-mobile-nav-icon-picker-results] { min-height: 0; overflow: auto; padding: 4px 22px 20px; }
.mobile-nav-svg-grid { display: grid; grid-template-columns: repeat(8, minmax(72px, 1fr)); gap: 10px; }
.mobile-nav-svg-grid button { display: grid; min-width: 0; min-height: 88px; place-items: center; gap: 5px; padding: 10px 5px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--text); cursor: pointer; }
.mobile-nav-svg-grid button:hover, .mobile-nav-svg-grid button:focus-visible { border-color: var(--accent); color: var(--accent-strong, var(--accent)); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent), transparent 84%); }
.mobile-nav-svg-grid button span { display: grid; width: 44px; height: 44px; place-items: center; border-radius: 10px; background: var(--surface-2); }
.mobile-nav-svg-grid button small { width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mobile-nav-icon-pagination { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-top: 16px; color: var(--muted); }
.mobile-nav-icon-pagination > div { display: flex; gap: 8px; }
.mobile-nav-image-field { grid-column: span 2; }
.mobile-nav-icon-upload-status { display: block; min-height: 1.2em; color: var(--muted); font-size: .82rem; }
.mobile-nav-icon-preview { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.mobile-nav-icon-preview img { width: 44px; height: 44px; object-fit: contain; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.mobile-nav-phone-preview { position: sticky; top: 20px; width: min(100%, 390px); min-height: 640px; margin: 14px auto 0; border: 8px solid #1e2630; border-radius: 34px; overflow: hidden; background: #f5f2ec; box-shadow: 0 18px 45px rgb(23 30 38 / .16); }
.mobile-nav-preview-content { display: grid; place-content: center; min-height: 560px; padding: 30px; text-align: center; }
.mobile-nav-preview.bottom-nav { position: absolute; display: grid !important; inset: auto 0 0; width: 100%; }
.mobile-nav-save-actions { align-items: center; flex-wrap: wrap; }
.mobile-nav-save-status { color: var(--muted); font-size: .9rem; }
.mobile-nav-save-status.is-error { color: var(--danger, #a52a2a); font-weight: 700; }

@media (max-width: 1000px) {
  .mobile-nav-admin { grid-template-columns: 1fr; }
  .mobile-nav-phone-preview { position: relative; top: 0; }
}

@media (max-width: 820px) {
  .mobile-nav-svg-grid { grid-template-columns: repeat(5, minmax(64px, 1fr)); }
}

@media (max-width: 900px) {
  .analytics-filter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .analytics-comparison-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .analytics-filter-grid, .analytics-comparison-grid { grid-template-columns: 1fr; }
  .analytics-trend-row { grid-template-columns: 70px minmax(90px, 1fr); }
  .analytics-trend-row small { grid-column: 1 / -1; }
  .analytics-metric { padding: 12px; }
  .mobile-nav-scope-grid, .mobile-nav-item-editor { grid-template-columns: 1fr; }
  .mobile-nav-icon-library-field, .mobile-nav-image-field { grid-column: auto; }
  .mobile-nav-selected-icon { grid-template-columns: 44px minmax(0, 1fr); }
  .mobile-nav-selected-icon .button { grid-column: 1 / -1; }
  .mobile-nav-icon-picker-toolbar { grid-template-columns: 1fr; }
  .mobile-nav-svg-grid { grid-template-columns: repeat(3, minmax(70px, 1fr)); }
  .mobile-nav-icon-picker header, .mobile-nav-icon-picker-toolbar, .mobile-nav-icon-category-tabs, [data-mobile-nav-icon-picker-results] { padding-inline: 14px; }
}

/* Task 80: native lesson-word flashcards */
.lesson-flashcard-entry {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  overflow: hidden;
  border-color: color-mix(in srgb, var(--accent-gold), var(--line) 58%);
  background:
    radial-gradient(circle at 92% 8%, rgba(255, 221, 112, 0.32), transparent 28%),
    linear-gradient(135deg, #fffdf5, #f2fbf7 62%, #ffffff);
}

.lesson-flashcard-entry-mark {
  display: grid;
  inline-size: 3.75rem;
  block-size: 3.75rem;
  place-items: center;
  border: 1px solid rgba(6, 63, 60, 0.16);
  border-radius: 1.1rem;
  background: var(--teal-900);
  color: #fff9dc;
  font-size: 1.8rem;
  font-weight: 900;
  box-shadow: 0 12px 28px rgba(6, 63, 60, 0.18);
}

.lesson-flashcard-entry-copy,
.lesson-flashcard-header > div,
.lesson-flashcard-progress-copy > * {
  min-inline-size: 0;
}

.lesson-flashcard-entry h3,
.lesson-flashcard-header h3 {
  margin-block: 0.35rem 0.15rem;
  color: var(--ink-strong);
}

.lesson-flashcard-entry .hint,
.lesson-flashcard-path {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.lesson-flashcard-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  color: var(--teal-700);
  font-size: 0.82rem;
  font-weight: 800;
}

.lesson-flashcard-entry-action {
  min-block-size: 48px;
  white-space: nowrap;
}

.lesson-flashcard-module {
  min-inline-size: 0;
}

.lesson-flashcard-player {
  display: grid;
  container-type: inline-size;
  gap: 1rem;
  inline-size: min(100%, 70rem);
  min-inline-size: 0;
  margin-inline: auto;
  padding: clamp(0.9rem, 2.5vw, 1.5rem);
  border: 1px solid rgba(6, 63, 60, 0.16);
  border-radius: clamp(1rem, 2vw, 1.5rem);
  background: #ffffff;
  box-shadow: 0 22px 64px rgba(17, 51, 48, 0.13);
}

.lesson-flashcard-loading {
  justify-items: center;
  min-block-size: 20rem;
  align-content: center;
  text-align: center;
}

.lesson-flashcard-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
}

.lesson-flashcard-header-actions,
.lesson-flashcard-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: flex-end;
}

.lesson-flashcard-progress-copy {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
}

.lesson-flashcard-progress-copy strong {
  color: var(--teal-900);
}

.lesson-flashcard-progress {
  inline-size: 100%;
  block-size: 0.7rem;
  border: 0;
  border-radius: 999px;
  overflow: hidden;
  accent-color: var(--teal-500);
  background: #e4efec;
}

.lesson-flashcard-progress::-webkit-progress-bar {
  border-radius: 999px;
  background: #e4efec;
}

.lesson-flashcard-progress::-webkit-progress-value {
  border-radius: 999px;
  background: linear-gradient(90deg, var(--teal-500), #62b59f);
}

.lesson-flashcard-mode-switch {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
  inline-size: min(100%, 42rem);
  margin-inline: auto;
}

.lesson-flashcard-mode {
  min-block-size: 48px;
  border: 1px solid #afc9c4;
  border-radius: 0.75rem;
  padding: 0.65rem 0.8rem;
  background: #ffffff;
  color: var(--teal-900);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.lesson-flashcard-mode:is(:hover, :focus-visible),
.lesson-flashcard-mode.is-active {
  border-color: var(--teal-700);
  background: var(--teal-100);
  box-shadow: inset 0 -3px 0 var(--teal-700);
}

.lesson-flashcard-mode:disabled {
  cursor: default;
  opacity: 0.7;
}

.lesson-flashcard-card {
  position: relative;
  display: grid;
  min-block-size: clamp(19rem, 52vh, 37rem);
  place-content: center;
  gap: clamp(0.8rem, 3cqi, 1.7rem);
  min-inline-size: 0;
  padding: clamp(2rem, 7cqi, 5.5rem) clamp(1rem, 8cqi, 6rem);
  overflow: hidden;
  border: clamp(0.3rem, 0.8cqi, 0.55rem) solid #f2bc3f;
  border-radius: 1rem;
  outline: 1px solid rgba(6, 63, 60, 0.2);
  outline-offset: 0.25rem;
  background:
    radial-gradient(circle at 18% 16%, rgba(255, 255, 255, 0.07), transparent 30%),
    linear-gradient(145deg, #2f7a25, #26691f);
  color: #ffffff;
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12), 0 18px 42px rgba(26, 85, 35, 0.2);
}

.lesson-flashcard-card:focus-visible {
  outline: 4px solid #315fd6;
  outline-offset: 4px;
}

.lesson-flashcard-card [hidden] {
  display: none;
}

.lesson-flashcard-pinyin-stack {
  display: grid;
  min-inline-size: 0;
  max-inline-size: 100%;
  justify-items: center;
  gap: clamp(0.45rem, 1.6cqi, 0.9rem);
}

.lesson-flashcard-hanzi,
.lesson-flashcard-pinyin {
  max-inline-size: 100%;
  margin: 0;
  color: inherit;
  font-weight: 800;
  text-wrap: balance;
}

.lesson-flashcard-hanzi {
  font-size: var(--lesson-flashcard-hanzi-size, clamp(3rem, 10cqi, 7.5rem));
  line-height: 1.12;
  letter-spacing: 0.04em;
  overflow-wrap: anywhere;
}

.lesson-flashcard-pinyin {
  display: grid;
  min-inline-size: 0;
  justify-items: center;
  gap: 0.08em;
  padding-block: 0.18em;
  font-size: var(--lesson-flashcard-pinyin-size, clamp(1.6rem, 5cqi, 3.5rem));
  font-weight: 650;
  line-height: 1.35;
  letter-spacing: 0.025em;
  overflow-wrap: anywhere;
}

.lesson-flashcard-pinyin strong {
  max-inline-size: 100%;
  font: inherit;
  font-weight: 750;
  overflow-wrap: anywhere;
}

.lesson-flashcard-pinyin-label {
  font-size: 0.42em;
  line-height: 1.2;
  letter-spacing: 0.08em;
  opacity: 0.86;
}

.lesson-flashcard-sandhi-pinyin {
  font-size: calc(var(--lesson-flashcard-pinyin-size, clamp(1.6rem, 5cqi, 3.5rem)) * 0.88) !important;
}

.practice-player-scope {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.18rem 0.38rem;
  margin-block-start: 0.35rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.practice-player-scope strong {
  color: var(--teal-900);
}

.practice-player-scope-separator {
  opacity: 0.58;
}

body[data-page-module="onlinePractice"] .practice-directory-kicker {
  font-size: 1.05rem !important;
  line-height: 1.45;
  letter-spacing: 0 !important;
}

body[data-page-module="onlinePractice"] .practice-directory-current {
  font-size: 1rem;
}

.practice-directory-scope-prefix {
  color: var(--teal-900);
  font-weight: 850;
}

@media (min-width: 1200px) {
  .lesson-flashcard-hanzi {
    font-size: min(calc(var(--lesson-flashcard-hanzi-size, 7.5rem) * 1.24), 9.25rem);
  }

  .lesson-flashcard-pinyin {
    font-size: min(calc(var(--lesson-flashcard-pinyin-size, 3.5rem) * 1.24), 4.35rem);
  }
}

/* Task 106: teacher / institution branded teaching spaces. */
body.teaching-space-active {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--primary, #2563eb) 9%, transparent), transparent 26rem),
    var(--canvas, var(--soft));
}

body.teaching-space-active .site-header {
  border-block-end-color: color-mix(in srgb, var(--primary, #2563eb) 28%, transparent);
}

body.teaching-space-active .floating-service,
body.teaching-space-active #whatsapp-link,
body.teaching-space-active #public-whatsapp,
body.teaching-space-active #bottom-nav {
  display: none !important;
}

body.teaching-space-active[data-role="student"] #nav > :not([data-module="teachingSpace"]),
body.teaching-space-active[data-role="parent"] #nav > :not([data-module="teachingSpace"]),
body.teaching-space-active[data-role="public"] #nav > *,
body.teaching-space-active:not([data-shell="app"]) #nav > * {
  display: none !important;
}

.teaching-space-page {
  inline-size: min(100%, 86rem);
  margin-inline: auto;
}

.teaching-space-page > * + * {
  margin-block-start: 1rem;
}

.teaching-space-hero {
  --space-accent: var(--primary, #2563eb);
  overflow: hidden;
  padding: 0;
  border-color: color-mix(in srgb, var(--space-accent) 26%, var(--line));
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--space-accent) 9%, white), #fff 58%);
}

.teaching-space-banner {
  display: block;
  inline-size: 100%;
  max-block-size: 22rem;
  aspect-ratio: 3.4 / 1;
  object-fit: cover;
  border-block-end: 1px solid color-mix(in srgb, var(--space-accent) 22%, var(--line));
}

.teaching-space-hero-content {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: clamp(1rem, 2.5vw, 1.6rem);
}

.teaching-space-identity {
  display: grid;
  place-items: center;
}

.teaching-space-logo,
.teaching-space-logo-fallback {
  inline-size: 5.25rem;
  block-size: 5.25rem;
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 12px 28px color-mix(in srgb, var(--space-accent) 24%, transparent);
}

.teaching-space-logo {
  object-fit: cover;
  background: #fff;
}

.teaching-space-logo-fallback {
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--space-accent);
  font-size: 2rem;
  font-weight: 900;
}

.teaching-space-hero-copy {
  min-inline-size: 0;
}

.teaching-space-hero-copy .eyebrow {
  color: color-mix(in srgb, var(--space-accent) 78%, #122725);
}

.teaching-space-hero-copy h2 {
  margin-block: 0.2rem 0.45rem;
  overflow-wrap: anywhere;
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  line-height: 1.15;
}

.teaching-space-hero-copy p:last-child {
  max-inline-size: 64ch;
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  white-space: pre-line;
}

.teaching-space-share-actions {
  justify-content: flex-end;
}

.teaching-space-share-actions .button,
.teaching-space-section .text-button {
  border-color: color-mix(in srgb, var(--space-accent) 34%, var(--line));
}

.teaching-space-selector {
  padding-block: 0.9rem;
  border-inline-start: 4px solid var(--primary, #2563eb);
}

.teaching-space-selector .field {
  display: grid;
  grid-template-columns: minmax(7rem, auto) minmax(14rem, 1fr);
  gap: 0.8rem;
  align-items: center;
  margin: 0;
}

.teaching-space-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-color: color-mix(in srgb, var(--primary, #2563eb) 18%, var(--line));
  background: color-mix(in srgb, var(--primary, #2563eb) 5%, #fff);
}

.teaching-space-summary span {
  min-inline-size: 0;
  text-align: center;
}

.teaching-space-summary strong {
  display: block;
  margin-block-end: 0.15rem;
  color: color-mix(in srgb, var(--primary, #2563eb) 76%, #122725);
}

.teaching-space-content-grid {
  align-items: start;
}

.teaching-space-section {
  min-inline-size: 0;
}

.teaching-space-section h3,
.teaching-space-manager > h3 {
  margin-block-start: 0;
}

.teaching-space-section .list-item {
  box-shadow: none;
}

.teaching-space-section .list-item p {
  overflow-wrap: anywhere;
}

.teaching-space-contact .row-actions {
  align-items: flex-start;
}

.teaching-space-payment-qr {
  display: block;
  inline-size: min(100%, 12rem);
  aspect-ratio: 1;
  object-fit: contain;
  padding: 0.45rem;
  border: 1px solid var(--line);
  background: #fff;
}

.teaching-space-manager {
  scroll-margin-block-start: 6rem;
  border-block-start: 4px solid var(--primary, #2563eb);
}

.teaching-space-manager form,
.teaching-space-payment-manager form {
  display: grid;
  gap: 0.9rem;
}

.teaching-space-manager input[type="color"] {
  inline-size: 100%;
  min-block-size: 2.9rem;
  padding: 0.25rem;
}

.teaching-space-payment-manager {
  margin-block-start: 1rem;
  box-shadow: none;
}

.teaching-space-payment-manager > summary {
  cursor: pointer;
  color: color-mix(in srgb, var(--primary, #2563eb) 74%, #122725);
  font-weight: 800;
}

.teaching-space-payment-manager[open] > summary {
  margin-block-end: 1rem;
}

@media (max-width: 980px) {
  .teaching-space-hero-content {
    grid-template-columns: 5rem minmax(0, 1fr);
  }

  .teaching-space-logo,
  .teaching-space-logo-fallback {
    inline-size: 4.75rem;
    block-size: 4.75rem;
  }

  .teaching-space-share-actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .teaching-space-content-grid {
    grid-template-columns: 1fr;
  }

  .teaching-space-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .teaching-space-selector .field {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  body.teaching-space-active main {
    padding-block-end: calc(1.25rem + env(safe-area-inset-bottom));
  }

  .teaching-space-page > * + * {
    margin-block-start: 0.8rem;
  }

  .teaching-space-banner {
    min-block-size: 8.5rem;
    aspect-ratio: 2 / 1;
  }

  .teaching-space-hero-content {
    grid-template-columns: 4rem minmax(0, 1fr);
    gap: 0.8rem;
    padding: 1rem;
  }

  .teaching-space-logo,
  .teaching-space-logo-fallback {
    inline-size: 4rem;
    block-size: 4rem;
    font-size: 1.45rem;
  }

  .teaching-space-hero-copy h2 {
    font-size: 1.45rem;
  }

  .teaching-space-share-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    inline-size: 100%;
  }

  .teaching-space-share-actions .button {
    inline-size: 100%;
    min-inline-size: 0;
    padding-inline: 0.65rem;
  }

  .teaching-space-summary span {
    padding: 0.65rem 0.45rem;
  }

  .teaching-space-manager .grid.two,
  .teaching-space-payment-manager .grid.two {
    grid-template-columns: 1fr;
  }

  .teaching-space-manager .row-actions > *,
  .teaching-space-payment-manager .row-actions > * {
    inline-size: 100%;
  }

  .teaching-space-payments .panel-title-row {
    align-items: flex-start;
    flex-direction: column;
  }
}

.lesson-flashcard-speak {
  position: absolute;
  inset-block-end: 1rem;
  inset-inline-end: 1rem;
  min-block-size: 44px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  padding: 0.55rem 0.85rem;
  background: rgba(255, 255, 255, 0.94);
  color: #14520f;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.lesson-flashcard-speak:focus-visible {
  outline: 3px solid #ffef96;
  outline-offset: 3px;
}

.lesson-flashcard-complete {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.8rem;
  align-items: baseline;
  margin: 0;
  padding: 0.85rem 1rem;
  border: 1px solid #b8d9cf;
  border-radius: 0.8rem;
  background: #f1fbf7;
  color: #315e58;
}

.lesson-flashcard-complete strong {
  color: var(--teal-900);
}

.lesson-flashcard-controls {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.lesson-flashcard-controls .button {
  min-block-size: 48px;
}

#app-view:fullscreen {
  overflow: auto;
  padding: clamp(0.75rem, 2vw, 1.5rem);
  background: #edf5f2;
}

#app-view:fullscreen .lesson-flashcard-module {
  min-block-size: calc(100vh - 3rem);
  align-content: center;
}

#app-view:fullscreen .lesson-flashcard-player {
  inline-size: min(100%, 86rem);
}

#app-view:fullscreen .lesson-flashcard-card {
  min-block-size: clamp(24rem, 62vh, 48rem);
}

@container (max-width: 42rem) {
  .lesson-flashcard-header {
    display: grid;
  }

  .lesson-flashcard-header-actions {
    justify-content: stretch;
  }

  .lesson-flashcard-header-actions .button {
    flex: 1 1 12rem;
  }

  .lesson-flashcard-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@container (max-width: 27rem) {
  .lesson-flashcard-mode-switch {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.35rem;
  }

  .lesson-flashcard-mode {
    min-inline-size: 0;
    min-block-size: 44px;
    padding: 0.45rem 0.2rem;
    font-size: clamp(0.72rem, 3.1vw, 0.84rem);
    white-space: nowrap;
  }

  .lesson-flashcard-header-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.4rem;
  }

  .lesson-flashcard-header-actions .button {
    min-inline-size: 0;
    padding-inline: 0.3rem;
    font-size: clamp(0.72rem, 3.1vw, 0.84rem);
    white-space: nowrap;
  }

  .lesson-flashcard-card {
    min-block-size: 18rem;
    padding-inline: 0.9rem;
  }
}

@media (max-width: 640px) {
  .lesson-flashcard-entry {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .lesson-flashcard-entry-action {
    grid-column: 1 / -1;
    inline-size: 100%;
  }

  .lesson-flashcard-player {
    gap: 0.8rem;
    padding: 0.75rem;
    border-radius: 1rem;
  }

  .lesson-flashcard-progress-copy {
    font-size: 0.88rem;
  }

  .lesson-flashcard-speak {
    position: static;
    justify-self: center;
    margin-block-start: 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lesson-flashcard-mode,
  .lesson-flashcard-card,
  .lesson-flashcard-entry-action,
  .lesson-flashcard-controls .button {
    transition: none;
  }
}

.bottom-nav-icon {
  font-size: 1rem;
  font-weight: 900;
  line-height: 1;
}

.lesson-flashcard-speech-status {
  text-align: center;
}

/* Task111: shared floating horizontal scrollbar for overflowing admin tables. */
.floating-table-scrollbar {
  position: fixed;
  z-index: 70;
  inset-block-end: calc(var(--floating-table-scroll-bottom, 8px) + env(safe-area-inset-bottom, 0px));
  block-size: 22px;
  overflow-x: auto;
  overflow-y: hidden;
  border: 1px solid rgba(6, 63, 60, 0.3);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 24px rgba(6, 63, 60, 0.2);
  overscroll-behavior-x: contain;
  touch-action: pan-x;
  scrollbar-color: var(--teal-700) #dcebea;
  scrollbar-width: auto;
}

.floating-table-scrollbar:focus-visible {
  outline: 3px solid rgba(15, 124, 119, 0.35);
  outline-offset: 2px;
}

.floating-table-scrollbar::-webkit-scrollbar {
  block-size: 14px;
}

.floating-table-scrollbar::-webkit-scrollbar-track {
  margin-inline: 5px;
  border-radius: 999px;
  background: #dcebea;
}

.floating-table-scrollbar::-webkit-scrollbar-thumb {
  min-inline-size: 44px;
  border: 2px solid #dcebea;
  border-radius: 999px;
  background: var(--teal-700);
}

.floating-table-scrollbar-track {
  block-size: 1px;
  pointer-events: none;
}

dialog[open] > .floating-table-scrollbar {
  z-index: 2;
}

.bottom-nav-icon img {
  display: block;
  width: 1.35rem;
  height: 1.35rem;
  object-fit: contain;
  margin-inline: auto;
}

.bottom-nav-icon svg {
  display: block;
  width: 1.35rem;
  height: 1.35rem;
  margin-inline: auto;
  color: currentColor;
}

.bottom-nav-label {
  margin-block-start: 0.3rem;
  font-size: 0.68rem;
  font-weight: 800;
  line-height: 1.15;
}

@media (prefers-reduced-motion: reduce) {
  .home-banner-track {
    transition: none;
  }
}

@media (max-width: 980px) {
  body:not([data-shell])[data-role="public"] .site-header {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.75rem;
  }

  body:not([data-shell])[data-role="public"] .public-nav-toggle {
    display: inline-grid;
    inline-size: 3rem;
    block-size: 3rem;
    place-items: center;
    justify-self: end;
    border: 1px solid #c9d8d3;
    border-radius: 8px;
    background: #fff;
    color: #164c43;
    cursor: pointer;
  }

  .public-nav-toggle span,
  .public-nav-toggle span::before,
  .public-nav-toggle span::after {
    inline-size: 1.35rem;
    block-size: 2px;
    display: block;
    border-radius: 2px;
    background: currentColor;
  }

  .public-nav-toggle span {
    position: relative;
  }

  .public-nav-toggle span::before,
  .public-nav-toggle span::after {
    content: "";
    position: absolute;
    inset-inline-start: 0;
  }

  .public-nav-toggle span::before { inset-block-start: -0.42rem; }
  .public-nav-toggle span::after { inset-block-start: 0.42rem; }

  body:not([data-shell])[data-role="public"] .site-header .nav,
  body:not([data-shell])[data-role="public"] .site-header .account-nav {
    display: none;
    grid-column: 1 / -1;
    inline-size: 100%;
  }

  body:not([data-shell])[data-role="public"].public-nav-open .site-header .nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-self: stretch;
    padding-block-start: 0.75rem;
    border-block-start: 1px solid rgba(6, 63, 60, 0.12);
  }

  body:not([data-shell])[data-role="public"].public-nav-open .site-header .account-nav {
    display: flex;
    justify-self: stretch;
  }

  body:not([data-shell])[data-role="public"].public-nav-open .account-nav .tab {
    inline-size: 100%;
    justify-content: center;
  }
}

@media (max-width: 700px) {
  .home-banner-viewport {
    aspect-ratio: 1;
  }

  .home-banner-arrow {
    inline-size: 2.75rem;
    block-size: 2.75rem;
  }

  .home-banner-dots {
    inset-block-end: 0.7rem;
  }

  .intro-panel.public-home-intro {
    grid-template-columns: minmax(0, 1fr);
    margin-block-start: 1rem;
    padding: 1.1rem;
  }

  .public-home-intro .hero-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body[data-shell="login"] .login-page {
    align-content: start;
  }

  body[data-shell="login"] .login-back-home {
    margin: calc(env(safe-area-inset-top, 0px) + 0.75rem) 0.75rem 0;
  }
}

@media (max-width: 768px) {
  body main {
    padding-block-end: calc(6.4rem + env(safe-area-inset-bottom, 0px));
  }

  .bottom-nav:not([hidden]) {
    position: fixed;
    z-index: 24;
    inset-inline: 0;
    inset-block-end: 0;
    display: grid !important;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: end;
    min-block-size: calc(4.7rem + env(safe-area-inset-bottom, 0px));
    padding: 0.35rem 0.2rem env(safe-area-inset-bottom, 0px);
    border: 0;
    border-block-start: 1px solid rgba(6, 63, 60, 0.16);
    border-radius: 0;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 -12px 32px rgba(17, 51, 48, 0.12);
    backdrop-filter: blur(16px);
  }

  .bottom-nav > a,
  .bottom-nav > button {
    min-inline-size: 0;
    min-block-size: 4rem;
    display: grid;
    place-content: center;
    align-self: end;
    padding: 0.3rem 0.1rem;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: #61736f;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
  }

  .bottom-nav > a:active,
  .bottom-nav > button:active {
    transform: translateY(1px);
  }

  .bottom-nav > .is-active:not(.bottom-nav-home),
  .bottom-nav > [aria-current="page"]:not(.bottom-nav-home) {
    background: #fff2e9;
    color: #9d421f;
  }

  .bottom-nav .bottom-nav-home {
    inline-size: 4.25rem;
    block-size: 4.25rem;
    min-block-size: 4.25rem;
    justify-self: center;
    align-self: start;
    margin-block-start: -1.15rem;
    padding: 0.3rem;
    border: 5px solid #fff;
    border-radius: 50%;
    background: #164c43;
    color: #fff;
    box-shadow: 0 8px 22px rgba(17, 51, 48, 0.24);
  }

  .bottom-nav .bottom-nav-home .bottom-nav-label {
    margin-block-start: 0.15rem;
    font-size: 0.72rem;
  }
}
/* Tasks 15-16: hierarchical paper scope selector */
.paper-scope-selector {
  grid-column: 1 / -1;
  min-width: 0;
  border: 1px solid var(--line, #d9e1ea);
  border-radius: 14px;
  padding: 14px;
}

.paper-scope-selector-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.paper-scope-all,
.paper-scope-node-choice {
  display: flex;
  align-items: center;
  gap: 9px;
  min-inline-size: 0;
  min-height: 44px;
  cursor: pointer;
}

.paper-scope-all input[type="radio"],
.paper-scope-node-choice input[type="radio"],
.paper-scope-node-choice input[type="checkbox"] {
  flex: 0 0 1.15rem;
  inline-size: 1.15rem;
  block-size: 1.15rem;
  min-inline-size: 1.15rem;
  min-block-size: 1.15rem;
  margin: 0;
  padding: 0;
  accent-color: var(--teal-700, #176f63);
}

.paper-scope-all {
  padding: 0 12px;
  border: 1px solid var(--line, #d9e1ea);
  border-radius: 10px;
}

.paper-scope-tree {
  max-height: 360px;
  overflow: auto;
  margin-top: 10px;
  border: 1px solid var(--line, #d9e1ea);
  border-radius: 12px;
  background: var(--surface, #fff);
}

.paper-scope-tree-level {
  list-style: none;
  margin: 0;
  padding: 4px 0;
}

.paper-scope-tree-level.is-nested {
  padding-block: 0;
}

.paper-scope-tree-row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 4px;
  min-height: 46px;
  padding: 2px 8px 2px calc(8px + var(--scope-depth, 0) * 18px);
  border-bottom: 1px solid color-mix(in srgb, var(--line, #d9e1ea) 60%, transparent);
}

.paper-rule-row {
  grid-template-columns: auto minmax(7.5rem, 1fr) minmax(8rem, 1fr) minmax(7rem, 0.75fr) minmax(7rem, 0.75fr) auto auto;
}

.paper-rule-enabled {
  min-height: 48px;
  margin: 0;
}

.paper-rule-availability {
  white-space: nowrap;
  color: var(--muted, #667085);
  font-weight: 750;
}

.paper-rule-availability.is-short {
  color: #b42318;
}

.paper-rule-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.paper-rule-footer .paper-rule-summary {
  min-width: 10rem;
  padding-inline: 1rem;
}

.pinyin-filter-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.pinyin-filter-grid {
  grid-column: 1;
}

.pinyin-primary-action {
  grid-column: 2;
  align-self: end;
  padding-bottom: 1px;
}

.pinyin-filter-actions {
  grid-column: 1 / -1;
}

.pinyin-list-table table {
  min-width: 1500px;
}

.pinyin-admin-host .import-summary {
  min-width: min(34rem, 100%);
}

.paper-scope-node-choice span {
  display: grid;
  gap: 2px;
  min-inline-size: 0;
  overflow-wrap: anywhere;
}

.paper-scope-node-choice strong {
  color: var(--ink, #173b36);
  line-height: 1.35;
}

.paper-scope-node-choice small {
  color: var(--muted, #667085);
}

@media (max-width: 720px) {
  .paper-scope-selector-head {
    grid-template-columns: 1fr;
  }

  .paper-scope-tree {
    max-height: 300px;
  }

  .paper-rule-row {
    grid-template-columns: 1fr;
  }

  .pinyin-filter-shell {
    grid-template-columns: 1fr;
  }

  .pinyin-primary-action,
  .pinyin-filter-grid,
  .pinyin-filter-actions {
    grid-column: 1;
  }

  .pinyin-primary-action .button {
    width: 100%;
    min-height: 48px;
  }
}
.credential-notification-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  margin-block: 1rem .5rem;
}

.credential-notification-actions .button {
  min-height: 48px;
}

@media (max-width: 520px) {
  .credential-notification-actions {
    grid-template-columns: 1fr;
  }
}
/* Task 34: membership plan editor */
.membership-plan-form {
  grid-column: 1 / -1;
  display: grid;
  gap: 14px;
  min-width: 0;
}

.membership-plan-form .panel-title-row { align-items: end; }
.membership-plan-form .plan-preset { min-width: min(260px, 100%); }

.plan-form-section {
  border: 1px solid var(--border, #d7dee8);
  border-radius: 14px;
  background: var(--surface, #fff);
  overflow: clip;
}

.plan-form-section > :is(h3, h4, summary) {
  margin: 0;
  min-height: 48px;
  padding: 14px 16px;
  font-weight: 800;
  background: #f7f9fc;
  border-bottom: 1px solid var(--border, #d7dee8);
}

.plan-form-section > summary { cursor: pointer; }

.plan-form-grid,
.plan-limit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 16px;
}

.plan-limit-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.plan-fixed-dates { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; grid-column: span 2; }
.plan-scope-group { min-width: 0; margin: 0; padding: 14px; border: 1px solid var(--border, #d7dee8); border-radius: 12px; }
.plan-scope-group > legend,
.plan-choice-group > legend,
.plan-limit > legend { padding-inline: 5px; font-weight: 800; }
.plan-choice-group { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 0; padding: 12px; border: 1px solid var(--border, #d7dee8); border-radius: 12px; }
.plan-choice-group label { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; }

.membership-plan-form .field { display: grid; align-content: start; gap: 6px; min-width: 0; }
.membership-plan-form .field > span { font-weight: 750; }
.membership-plan-form .field > small,
.membership-plan-form .field-help { color: var(--muted, #667085); font-size: .84rem; line-height: 1.45; }
.membership-plan-form :where(input, select, button) { min-height: 46px; font-size: 1rem; }
.membership-plan-form[aria-busy="true"] { cursor: progress; }
.membership-plan-form[aria-busy="true"] button[type="submit"] { cursor: progress; opacity: .78; }
.membership-plan-form :where(input, select, textarea)[aria-invalid="true"] { border-color: #b42318; box-shadow: 0 0 0 3px rgba(180, 35, 24, .12); }
.membership-plan-form-status { margin: 0; padding: 11px 13px; border: 1px solid #b8d8c7; border-radius: 10px; color: #174c35; background: #f0faf5; line-height: 1.5; }
.membership-plan-form-status[data-tone="progress"] { border-color: #9fc2ee; color: #194d86; background: #f0f6ff; }
.membership-plan-form-status[data-tone="error"] { border-color: #e5a6a1; color: #8f1d18; background: #fff3f2; }
.membership-plan-form :where(input, select):focus-visible,
.plan-form-section > summary:focus-visible { outline: 3px solid #2f6fed; outline-offset: 2px; }

.unit-input { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: stretch; }
.unit-input input { border-start-end-radius: 0; border-end-end-radius: 0; }
.unit-input span { display: grid; place-items: center; min-width: 48px; padding-inline: 10px; border: 1px solid var(--border, #d7dee8); border-inline-start: 0; border-radius: 0 10px 10px 0; background: #f7f9fc; }
.system-calculated-input input[readonly] { color: #123b2a; font-weight: 800; background: #eef9f3; cursor: default; }
.system-calculated-input input:disabled { color: #52645d; -webkit-text-fill-color: #52645d; opacity: 1; background: #f2f5f3; }
.pricing-calculation-note { grid-column: 1 / -1; margin: 0; padding: 11px 13px; border: 1px solid #b8d8c7; border-radius: 10px; color: #174c35; background: #f0faf5; line-height: 1.5; }
.pricing-calculation-note.is-warning { border-color: #e2bd68; color: #6e4a00; background: #fff8e5; }

.plan-multi-select { display: grid; gap: 12px; padding: 16px; }
.plan-multi-tools { display: flex; flex-wrap: wrap; align-items: end; gap: 10px; }
.plan-multi-tools .field { flex: 1 1 260px; }
.plan-check-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.plan-check-option { display: flex; align-items: center; gap: 9px; min-height: 48px; padding: 9px 11px; border: 1px solid var(--border, #d7dee8); border-radius: 10px; background: #fff; }
.plan-check-option:has(input:checked) { border-color: #2f6fed; background: #f1f6ff; }
.plan-check-option input { flex: 0 0 auto; min-height: auto; inline-size: 18px; block-size: 18px; accent-color: #2f6fed; }

.plan-cascade {
  grid-column: 1 / -1;
  display: grid;
  gap: 12px;
}

.plan-cascade-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.plan-cascade-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.plan-cascade-level {
  min-width: 0;
  border: 1px solid var(--border, #d7dee8);
  border-radius: 10px;
  padding: 10px;
  background: #f9fbfd;
}

.plan-cascade-level-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  margin-block-end: 8px;
}

.plan-cascade-level-head > span { display: inline-flex; gap: 4px; }
.plan-cascade-level-head .text-button { min-height: 36px; padding: 4px 6px; font-size: .75rem; }

.plan-cascade-level h5 {
  margin: 0;
  color: var(--teal-900);
  font-size: .88rem;
}

.plan-cascade-level .plan-check-grid {
  grid-template-columns: 1fr;
  max-height: 18rem;
  overflow: auto;
  padding-inline-end: 3px;
}

.plan-cascade-empty { display: none; margin: 0; color: var(--muted); font-size: .82rem; }
.plan-cascade-level.is-empty .plan-cascade-empty { display: block; }
.plan-cascade-level.is-empty .plan-check-grid { display: none; }
.plan-cascade [data-curriculum-option-wrap][hidden] { display: none; }

.form-warning {
  margin: 0;
  border: 1px solid #f2b8a0;
  border-radius: 10px;
  padding: 10px 12px;
  background: #fff7f2;
  color: #8a3b2f;
  font-weight: 700;
}

.plan-limit { min-width: 0; margin: 0; padding: 14px; border: 1px solid var(--border, #d7dee8); border-radius: 12px; }
.plan-limit.is-feature-disabled { background: #f5f6f8; opacity: .72; }
.plan-limit.is-feature-disabled .field-help::after { content: "（先在網站功能中開放此功能）"; }
.feature-capacity-status { grid-column: 1 / -1; margin: 0; padding: 11px 13px; border: 1px solid #bdd0ea; border-radius: 10px; color: #234f83; background: #f3f7fd; line-height: 1.5; }
.plan-limit-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.plan-limit-row .is-muted { opacity: .55; }

.plan-summary { padding: 16px; border: 1px solid #b9d0ff; border-radius: 14px; background: #f3f7ff; }
.plan-summary h4 { margin: 0 0 8px; }
.plan-summary ul { margin: 0; padding-inline-start: 22px; display: grid; gap: 5px; }

@media (max-width: 980px) {
  .plan-form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plan-limit-grid { grid-template-columns: 1fr; }
  .plan-check-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plan-cascade-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .membership-plan-form .panel-title-row { align-items: stretch; }
  .plan-form-grid,
  .plan-check-grid,
  .plan-limit-row,
  .plan-fixed-dates { grid-template-columns: 1fr; }
  .plan-fixed-dates { grid-column: auto; }
  .plan-form-grid,
  .plan-limit-grid,
  .plan-multi-select { padding: 12px; }
  .plan-multi-tools > :where(.tag, .text-button) { flex: 1 1 auto; }
  .plan-cascade-grid { grid-template-columns: 1fr; }
  .plan-cascade-level .plan-check-grid { grid-template-columns: 1fr; max-height: 14rem; }
}

/* Task 36: member list and editor */
@media (max-width: 1024px) {
  .member-list-table {
    display: none;
  }

  .member-card-list {
    display: grid;
    gap: 0.75rem;
  }

  .member-card {
    min-inline-size: 0;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
  }

  .member-card .panel-title-row > div {
    min-inline-size: 0;
  }

  .member-card h4,
  .member-card p {
    margin: 0;
    overflow-wrap: anywhere;
  }

  .member-card dl {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
    margin-block: 0.85rem;
  }

  .member-card dt {
    color: var(--muted);
    font-size: 0.82rem;
  }

  .member-card dd {
    margin: 0.15rem 0 0;
    overflow-wrap: anywhere;
  }

  .member-card details > summary {
    min-block-size: 48px;
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 750;
  }
}

@media (max-width: 640px) {
  .member-list-table {
    display: none;
  }

  .member-card-list {
    display: grid;
    gap: 0.75rem;
  }

  .member-card {
    min-inline-size: 0;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
  }

  .member-card .panel-title-row > div {
    min-inline-size: 0;
  }

  .member-card h4,
  .member-card p {
    margin: 0;
    overflow-wrap: anywhere;
  }

  .member-card dl {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
    margin-block: 0.85rem;
  }

  .member-card dt {
    color: var(--muted);
    font-size: 0.82rem;
  }

  .member-card dd {
    margin: 0.15rem 0 0;
    overflow-wrap: anywhere;
  }

  .member-card details > summary {
    min-block-size: 48px;
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 750;
  }

  .member-card .member-row-actions,
  .member-editor-dialog .row-actions,
  .field-inline {
    min-inline-size: 0;
    align-items: stretch;
    flex-direction: column;
  }

  .member-card .member-row-actions .text-button,
  .member-editor-dialog .row-actions > *,
  .field-inline > * {
    inline-size: 100%;
    min-block-size: 48px;
  }

  .member-editor-dialog {
    inline-size: calc(100dvw - 1rem);
    max-inline-size: calc(100dvw - 1rem);
    max-block-size: calc(100dvh - 1rem);
  }

  .member-editor-dialog > form {
    max-block-size: calc(100dvh - 1rem);
    padding: 0.85rem;
  }

  body[data-shell="app"] .nav:has(.admin-menu-tree) {
    display: block;
    overflow-x: hidden;
    overflow-y: auto;
    max-block-size: min(60dvh, 30rem);
    padding-block-end: 0.5rem;
  }
  body[data-shell="app"] .admin-menu-tree {
    display: grid;
    gap: 0.25rem;
  }
  body[data-shell="app"] .admin-menu-group-toggle {
    min-block-size: 2.7rem;
    padding-inline: 0.8rem;
  }
  body[data-shell="app"] .admin-menu-item {
    min-block-size: 2.7rem !important;
    padding-inline-start: 1.25rem !important;
  }

  .point-activity-admin-card:has(.point-activity-admin-cover) {
    grid-template-columns: minmax(0, 1fr);
  }

  .point-activity-admin-cover {
    max-block-size: 12rem;
  }

  .point-activity-image-preview {
    grid-template-columns: minmax(0, 1fr);
  }

  .point-reward-type-dialog {
    inline-size: calc(100vw - 1rem);
    max-block-size: calc(100dvh - 1rem);
    padding: 0.9rem;
  }

  .member-group-members-dialog {
    inline-size: calc(100vw - 1rem);
    max-block-size: calc(100dvh - 1rem);
    padding: 0.9rem;
  }

  .member-plan-extension-fields {
    grid-template-columns: minmax(0, 1fr);
  }

  .point-earning-task-dialog {
    inline-size: calc(100vw - 1rem);
    max-block-size: calc(100dvh - 1rem);
  }

  .point-earning-task-editor {
    max-block-size: calc(100dvh - 1rem);
    padding: 0.9rem;
  }

  .member-create-dialog[open] {
    padding: 0.85rem;
  }

  .member-editor-student-name input,
  .member-editor-student-grade select {
    block-size: 2.75rem;
    min-block-size: 2.75rem;
  }

  .member-editor-dialog .plan-form-grid {
    grid-template-columns: 1fr;
  }

  .member-device-dialog[open] {
    gap: 0.75rem;
    padding: 0.75rem;
  }

  .member-device-summary {
    grid-template-columns: 1fr;
  }

  .member-device-dialog .member-device-footer {
    flex-direction: row;
  }

  .member-device-dialog .member-device-footer > .button {
    flex: 1 1 0;
    inline-size: auto;
    min-block-size: 48px;
  }

  .admin-device-item {
    grid-template-columns: 1fr;
    align-items: stretch;
    padding: 0.85rem;
  }

  .admin-device-item dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-device-item > .button {
    min-block-size: 48px;
    inline-size: 100%;
  }
}
/* Task 43: persistent course email reminders. */
.course-reminder-settings {
  grid-column: 1 / -1;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--line, #d7dfdc);
  border-radius: 14px;
  background: var(--surface-soft, #f7faf8);
}

.course-reminder-settings > legend { padding-inline: .35rem; font-weight: 800; }
.course-reminder-settings-body { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .85rem; margin-top: .75rem; }
.course-reminder-settings-body[hidden] { display: none; }
.course-reminder-settings-body > .field:last-child { grid-column: 1 / -1; }
.course-reminder-toggle { display: inline-flex; align-items: center; gap: .6rem; min-height: 48px; font-weight: 700; }
.course-reminder-toggle input,
.course-reminder-settings input[type="checkbox"] { width: 1.15rem; height: 1.15rem; accent-color: var(--accent, #176b5b); }
.course-reminder-preview { margin: .75rem 0 0; color: var(--muted, #53645f); line-height: 1.55; }
.course-reminder-jobs { margin-top: 1rem; padding: 1rem; border: 1px solid var(--line, #d7dfdc); border-radius: 14px; background: #fff; }
.course-reminder-jobs h4 { margin: 0 0 .75rem; }
.course-reminder-job-list { display: grid; gap: .65rem; }
.course-reminder-job { display: grid; grid-template-columns: minmax(0, 1fr) minmax(220px, auto); gap: 1rem; align-items: start; padding: .85rem; border: 1px solid var(--line, #d7dfdc); border-radius: 12px; }
.course-reminder-job p { margin: .25rem 0; }
.course-reminder-job small { display: block; color: var(--muted, #53645f); }
.course-reminder-job.status-failed { border-color: #dc8e8e; background: #fff8f8; }
.course-reminder-job.status-sent { border-color: #8ac8ad; }
.course-notification-preferences { margin-block: 1rem; }
.course-notification-preferences form { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.25rem; }

@media (max-width: 760px) {
  .course-reminder-settings { padding: .85rem; }
  .course-reminder-settings-body { grid-template-columns: 1fr; }
  .course-reminder-settings-body > .field:last-child { grid-column: auto; }
  .course-reminder-settings input,
  .course-reminder-settings select,
  .course-reminder-settings textarea { font-size: 1rem; }
  .course-reminder-job { grid-template-columns: 1fr; }
  .course-notification-preferences form { align-items: stretch; flex-direction: column; }
}

/* Task 45: server-sorted course schedules. */
.course-schedule-toolbar {
  display: grid;
  grid-template-columns: minmax(14rem, 1.5fr) repeat(5, minmax(8rem, 1fr)) auto;
  gap: .7rem;
  align-items: end;
  margin-top: 1rem;
  padding: .9rem;
  border: 1px solid var(--line, #d7dfdc);
  border-radius: 12px;
  background: #f7faf9;
}

.course-schedule-toolbar .field,
.my-course-sort-toolbar .field { min-width: 0; margin: 0; }
.course-schedule-toolbar .field > span,
.my-course-sort-toolbar .field > span { font-size: .78rem; font-weight: 750; }
.course-schedule-toolbar select,
.my-course-sort-toolbar select { width: 100%; min-height: 44px; }
.course-schedule-count { align-self: center; white-space: nowrap; color: var(--muted, #53645f); font-weight: 750; }
.course-schedule-primary-actions { margin: .2rem 0 1rem; flex-wrap: wrap; }
.course-schedule-dialog { inline-size: min(64rem, calc(100vw - 2rem)); max-block-size: min(92vh, 62rem); }
.course-schedule-dialog > div { position: relative; max-block-size: min(88vh, 58rem); overflow: auto; overscroll-behavior: contain; }
.course-schedule-dialog .dialog-close { position: sticky; z-index: 3; inset-block-start: 0; margin-inline-start: auto; display: block; inline-size: 2.75rem; block-size: 2.75rem; border-radius: 999px; }
.course-schedule-dialog .mini-form { margin: 0; }

.course-student-search-form { display: grid; gap: .75rem; }
.course-student-search-results { display: grid; gap: .4rem; max-block-size: 22rem; overflow: auto; padding: .4rem; border: 1px solid var(--line, #d7dfdc); border-radius: 12px; background: #fff; }
.course-student-search-option { display: grid; grid-template-columns: minmax(9rem, .8fr) minmax(0, 1.4fr); gap: .8rem; inline-size: 100%; padding: .75rem .85rem; border: 1px solid transparent; border-radius: 10px; background: transparent; color: inherit; text-align: start; }
.course-student-search-option:hover, .course-student-search-option:focus-visible, .course-student-search-option.is-selected { border-color: color-mix(in srgb, var(--primary, #315f74) 45%, #fff); background: color-mix(in srgb, var(--primary, #315f74) 8%, #fff); }
.course-student-search-option span { color: var(--muted, #53645f); overflow-wrap: anywhere; }
.course-student-search-pagination, .makeup-target-pagination { justify-content: space-between; align-items: center; }
.makeup-target-toolbar { grid-template-columns: minmax(12rem, 1fr) minmax(10rem, .4fr); }

.course-schedule-pagination {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: .75rem;
  margin-top: .8rem;
}

.course-schedule-pagination span { min-width: 7rem; text-align: center; font-weight: 750; }
.my-course-sort-toolbar { display: flex; justify-content: flex-end; margin-block: .8rem 1rem; }
.my-course-sort-toolbar .field { width: min(22rem, 100%); }

@media (max-width: 1100px) {
  .course-schedule-toolbar { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .course-schedule-count { justify-self: end; }
}

@media (max-width: 640px) {
  .course-schedule-toolbar { grid-template-columns: minmax(0, 1fr); padding: .75rem; }
  .course-schedule-sort { order: -1; }
  .course-schedule-count { justify-self: start; }
  .course-schedule-pagination { justify-content: space-between; }
  .course-schedule-pagination .button { min-width: 0; flex: 1 1 0; }
  .my-course-sort-toolbar { justify-content: stretch; }
  .my-course-sort-toolbar .field { width: 100%; }
  .course-schedule-primary-actions { display: grid; grid-template-columns: 1fr; }
  .course-schedule-dialog { inline-size: 100vw; max-inline-size: none; block-size: 100dvh; max-block-size: none; margin: 0; border: 0; border-radius: 0; }
  .course-schedule-dialog > div { max-block-size: 100dvh; min-block-size: 100dvh; padding: 1rem; }
  .course-student-search-option { grid-template-columns: minmax(0, 1fr); gap: .25rem; }
  .course-student-search-pagination, .makeup-target-pagination { display: grid; grid-template-columns: 1fr auto 1fr; }
  .makeup-target-toolbar { grid-template-columns: minmax(0, 1fr); }
}

/* TASK83 member relationship list/dialog layout */
.task83-member-workspace .task83-member-toolbar { display: grid; gap: 1rem; }
.task83-member-filters { display: grid; grid-template-columns: minmax(180px, 1fr) repeat(2, minmax(140px, 180px)); gap: .75rem; align-items: end; }
.task83-member-capacity { display: flex; flex-wrap: wrap; gap: .45rem .8rem; align-items: center; margin: 0; }
.task83-member-capacity span { padding: .35rem .65rem; border-radius: 999px; background: var(--surface-soft, #f4f7f6); }
.task83-member-actions { flex-wrap: wrap; }
.task83-table-wrap { inline-size: 100%; overflow-x: auto; border-radius: 18px; border: 1px solid rgba(15, 23, 42, .08); }
.task83-member-table { width: 100%; border-collapse: collapse; min-width: 760px; background: #fff; }
.task83-member-table th, .task83-member-table td { padding: .8rem .9rem; border-bottom: 1px solid rgba(15, 23, 42, .08); text-align: left; vertical-align: top; }
.task83-member-table th { position: sticky; top: 0; background: #f8fafc; color: #334155; font-size: .86rem; }
.task83-member-table td strong { display: block; color: #0f172a; }
.task83-member-table td small { display: block; color: #64748b; margin-top: .2rem; }
.task83-device-cell .text-button { display: grid; justify-items: start; gap: .15rem; min-block-size: 2.75rem; text-align: start; }
.task83-device-cell .text-button small { color: inherit; opacity: .75; }
.task83-row-actions { display: flex; flex-wrap: wrap; gap: .45rem; min-width: 220px; }
.task83-institution-tabs { display: grid; gap: 1rem; }
.task83-tree-toggle > summary { cursor: pointer; font-weight: 700; padding: .9rem 1rem; border-radius: 16px; background: #f8fafc; }
.task83-member-dialog { width: min(920px, calc(100vw - 32px)); max-height: min(88vh, 920px); overflow: auto; }
.task83-member-dialog .family-child-card { box-shadow: none; }
.task83-pagination { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding-top: .85rem; }
.task83-pagination > span { color: #64748b; font-weight: 700; }
.task83-member-summary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; margin: 0; }
.task83-member-summary > div { padding: .85rem; border: 1px solid rgba(15, 23, 42, .09); border-radius: .9rem; background: #f8fafc; }
.task83-member-summary dt { color: #64748b; font-size: .82rem; }
.task83-member-summary dd { margin: .2rem 0 0; color: #0f172a; font-weight: 700; overflow-wrap: anywhere; }
.parent-effective-access { min-inline-size: 0; }
.parent-effective-account { display: flex; flex-wrap: wrap; gap: .4rem .75rem; align-items: baseline; margin-block-end: .8rem; padding-block-end: .7rem; border-block-end: 1px solid var(--line); }
.parent-effective-account span { color: var(--muted); }
.parent-effective-beneficiaries { display: grid; gap: .7rem; }
.parent-effective-row { min-inline-size: 0; padding: .8rem; border: 1px solid var(--line); border-radius: .5rem; background: #fff; }
.parent-effective-row > header { display: flex; justify-content: space-between; align-items: flex-start; gap: .75rem; }
.parent-effective-row > header > div { min-inline-size: 0; }
.parent-effective-row > header strong { display: block; overflow-wrap: anywhere; }
.parent-effective-row > header small { display: block; margin-block-start: .2rem; color: var(--muted); overflow-wrap: anywhere; }
.parent-effective-row dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .65rem .9rem; margin: .8rem 0 0; }
.parent-effective-row dt { color: var(--muted); font-size: .82rem; }
.parent-effective-row dd { margin: .15rem 0 0; overflow-wrap: anywhere; }
.parent-effective-empty { margin-block: .7rem 0; color: var(--muted); }
@media (min-width: 701px) and (max-width: 900px) {
  .task83-member-workspace,
  .task83-member-workspace > *,
  .task83-member-workspace .task83-member-toolbar,
  .task83-member-workspace .task83-table-wrap {
    min-inline-size: 0;
    max-inline-size: 100%;
  }
  .task83-member-workspace .task83-table-wrap { scrollbar-gutter: auto; }
  .task83-member-workspace .task83-member-table {
    inline-size: 100%;
    min-inline-size: min(100%, 44rem);
    table-layout: fixed;
  }
  .task83-member-workspace .task83-member-table :where(th, td) { overflow-wrap: anywhere; }
  .task83-member-workspace .task83-row-actions { min-inline-size: 0; }
}
@media (max-width: 700px) {
  .task83-member-filters { grid-template-columns: 1fr; }
  .task83-member-dialog { width: 100vw; max-width: none; height: 100dvh; max-height: none; margin: 0; border-radius: 0; }
  .task83-table-wrap { overflow: visible; border: 0; }
  .task83-member-table { min-width: 0; display: block; }
  .task83-member-table thead { display: none; }
  .task83-member-table tbody, .task83-member-table tr, .task83-member-table td { display: block; width: 100%; }
  .task83-member-table tr { margin-bottom: .75rem; padding: .85rem; border: 1px solid rgba(15, 23, 42, .08); border-radius: 18px; background: #fff; }
  .task83-member-table td { border: 0; padding: .35rem 0; }
  .task83-row-actions { min-width: 0; }
  .task83-pagination { align-items: stretch; flex-direction: column; }
  .task83-pagination .row-actions { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
  .task83-member-summary { grid-template-columns: 1fr; }
  .parent-effective-row dl { grid-template-columns: 1fr; }
}

/* Task108 school directory and anonymous parent messages */
.public-trust-section { display: grid; gap: 1.25rem; }
.school-directory { min-width: 0; }
.school-region-tabs { display: flex; gap: 1.1rem; margin-bottom: .75rem; overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-width: thin; }
.school-region-tab { position: relative; flex: 0 0 auto; min-height: 40px; padding: .45rem .1rem .55rem; border: 0; background: transparent; color: #526964; font-weight: 750; letter-spacing: 0; }
.school-region-tab::after { position: absolute; inset-inline: 28%; inset-block-end: .15rem; height: 2px; border-radius: 2px; background: transparent; content: ""; }
.school-region-tab.is-active { color: #0f172a; }
.school-region-tab.is-active::after { background: #d9485f; }
.school-directory-search { display: block; max-width: 22rem; margin-bottom: .9rem; }
.school-directory-search input { width: 100%; min-height: 42px; }
.school-logo-grid { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: .85rem .6rem; min-width: 0; }
.school-logo-item { display: grid; grid-template-rows: 76px auto auto; justify-items: center; align-content: start; gap: .35rem; min-width: 0; text-align: center; }
.school-logo-box { display: grid; place-items: center; width: 74px; height: 74px; overflow: hidden; border: 1px solid rgba(15, 23, 42, .09); border-radius: 7px; background: #fff; box-shadow: 0 4px 12px rgba(15, 23, 42, .08); }
.school-logo-box img { display: block; width: 62px; height: 62px; object-fit: contain; }
.school-logo-placeholder { display: grid; place-items: center; width: 62px; height: 62px; border-radius: 6px; background: #e7eef0; color: #526964; font-weight: 850; }
.school-logo-item strong { display: -webkit-box; max-width: 100%; overflow: hidden; color: #17202a; font-size: .86rem; line-height: 1.28; overflow-wrap: anywhere; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
.school-logo-item small { display: -webkit-box; max-width: 100%; overflow: hidden; color: #667085; font-size: .73rem; line-height: 1.3; overflow-wrap: anywhere; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.school-directory-empty { margin: 1rem 0 0; color: #667085; }
.school-directory-pagination { display: flex; align-items: center; justify-content: center; gap: .75rem; margin-top: 1rem; }
.school-directory-pagination > span { min-width: 10rem; color: #526964; font-size: .84rem; font-weight: 700; text-align: center; }
.school-directory-pagination .button { min-height: 40px; }
.testimonial-section { min-width: 0; padding-top: .25rem; border-top: 1px solid rgba(15, 23, 42, .1); }
.testimonial-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); gap: .8rem; }
.testimonial-image-card, .testimonial-card { min-width: 0; margin: 0; border: 1px solid rgba(15, 23, 42, .1); border-radius: 7px; background: #fff; }
.testimonial-image-card > button { display: grid; width: 100%; min-height: 44px; padding: 0; overflow: hidden; border: 0; border-radius: 7px 7px 0 0; background: #f5f7f8; color: #17202a; text-align: left; }
.testimonial-image-card img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #eef2f3; }
.testimonial-image-card span { display: flex; justify-content: space-between; gap: .65rem; padding: .65rem .75rem; font-weight: 760; }
.testimonial-image-card small { color: #667085; font-weight: 500; }
.testimonial-image-card p { margin: 0; padding: 0 .75rem .75rem; color: #52606d; font-size: .84rem; }
.testimonial-card { padding: .85rem; border-left: 3px solid #d9485f; }
.testimonial-card p { margin: 0 0 .45rem; color: #334155; line-height: 1.65; }
.testimonial-card footer { color: #526964; font-weight: 700; font-size: .86rem; }
.testimonial-image-dialog { width: min(94vw, 72rem); }
.testimonial-image-dialog img { display: block; max-width: 100%; max-height: 78vh; margin-inline: auto; object-fit: contain; }
.public-testimonial-upload { margin-bottom: 1rem; padding-bottom: 1rem; border-bottom: 1px solid rgba(15, 23, 42, .1); }
.public-trust-image-editor { display: grid; gap: .65rem; min-width: 0; }
.public-trust-image-editor canvas { display: block; max-width: 100%; height: auto; border: 1px solid rgba(15, 23, 42, .18); border-radius: 6px; background: #e7eef0; cursor: crosshair; touch-action: none; }
.public-testimonial-admin-list { display: grid; gap: .75rem; }
.public-testimonial-admin-row { display: grid; grid-template-columns: 10rem minmax(0, 1fr); gap: .85rem; align-items: start; padding: .8rem; border: 1px solid rgba(15, 23, 42, .1); border-radius: 7px; background: #f9fbfb; }
.public-testimonial-admin-row > img { width: 10rem; aspect-ratio: 4 / 3; border-radius: 6px; background: #eef2f3; object-fit: contain; }
.public-testimonial-admin-fields { display: grid; gap: .65rem; min-width: 0; }
.privacy-confirmation { align-items: flex-start; }

/* G015: additional declarations coexist with the versioned textbook copyright notice. */
.site-declarations-admin {
  display: grid;
  gap: 18px;
  margin-block-start: 24px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface, #fff);
}

.site-declaration-create,
.site-declaration-admin-item {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface, #fff) 96%, var(--brand-primary, #0f766e) 4%);
}

.site-declaration-create > summary,
.site-declaration-admin-item > summary {
  cursor: pointer;
  padding: 14px 16px;
  font-weight: 800;
}

.site-declaration-admin-item > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-declaration-admin-item > summary span:first-child {
  display: grid;
  gap: 3px;
}

.site-declaration-admin-item > summary small {
  color: var(--muted);
  font-weight: 600;
}

.site-declaration-admin-list,
.site-declaration-editor {
  display: grid;
  gap: 14px;
}

.site-declaration-editor {
  padding: 16px;
  border-block-start: 1px solid var(--line);
}

.site-declaration-editor > label,
.site-declaration-editor-grid > label {
  display: grid;
  gap: 7px;
  font-weight: 750;
}

.site-declaration-editor-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(150px, .4fr) minmax(120px, .25fr);
  gap: 14px;
}

.site-declaration-scope-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.site-declaration-scope {
  min-inline-size: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.site-declaration-scope legend {
  padding-inline: 5px;
  font-weight: 800;
}

.site-declaration-scope > div {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px 10px;
  margin-block-start: 8px;
}

.site-declaration-dialog {
  inline-size: min(760px, calc(100vw - 32px));
  max-block-size: min(86vh, 820px);
  padding: 0;
  border: 0;
  border-radius: 20px;
  background: var(--surface, #fff);
  box-shadow: 0 24px 80px rgb(15 23 42 / 28%);
}

.site-declaration-dialog::backdrop {
  background: rgb(15 23 42 / 54%);
  backdrop-filter: blur(3px);
}

.site-declaration-dialog-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  max-block-size: min(86vh, 820px);
}

.site-declaration-dialog-panel > header,
.site-declaration-dialog-panel > footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border-block-end: 1px solid var(--line);
}

.site-declaration-dialog-panel > footer {
  justify-content: flex-end;
  border-block-start: 1px solid var(--line);
  border-block-end: 0;
}

.site-declaration-dialog-panel h2,
.site-declaration-public-item h3,
.site-declaration-public-item p {
  margin: 0;
}

.site-declaration-dialog-content {
  display: grid;
  gap: 18px;
  overflow: auto;
  padding: 20px;
}

.site-declaration-public-item {
  display: grid;
  gap: 12px;
}

.site-declaration-public-item + .site-declaration-public-item {
  padding-block-start: 18px;
  border-block-start: 1px solid var(--line);
}

.site-declaration-summary {
  color: var(--muted);
  font-weight: 700;
}

@media (max-width: 700px) {
  .site-declarations-admin { padding: 16px; }
  .site-declaration-editor-grid,
  .site-declaration-scope-grid { grid-template-columns: 1fr; }
  .site-declaration-scope > div { grid-template-columns: 1fr; }
  .site-declaration-dialog { inline-size: calc(100vw - 20px); }
  .site-declaration-dialog-panel > header,
  .site-declaration-dialog-panel > footer,
  .site-declaration-dialog-content { padding: 14px; }
}
.paper-school-master-main { display: flex; align-items: center; gap: .75rem; min-width: 0; }
.paper-school-logo-preview { display: grid; flex: 0 0 54px; place-items: center; width: 54px; height: 54px; overflow: hidden; border: 1px solid rgba(15, 23, 42, .1); border-radius: 6px; background: #fff; }
.paper-school-logo-preview img { width: 46px; height: 46px; object-fit: contain; }
.paper-school-logo-preview > span { color: #667085; font-weight: 850; }
.paper-school-master { min-width: 0; }
.paper-school-directory-import { margin-block-end: 1rem; }
.paper-school-directory-import .panel-title-row { align-items: flex-start; }
.paper-school-import-preview { display: grid; gap: .8rem; margin-block-start: 1rem; padding-block-start: 1rem; border-top: 1px solid rgba(15, 23, 42, .1); }
.school-import-summary { display: flex; flex-wrap: wrap; gap: .55rem; }
.school-import-summary span { padding: .35rem .6rem; border: 1px solid rgba(15, 23, 42, .12); border-radius: 999px; background: rgba(15, 23, 42, .03); font-size: .85rem; }
.school-import-confirm { padding: .65rem .75rem; border: 1px solid rgba(180, 83, 9, .28); border-radius: .65rem; background: rgba(245, 158, 11, .08); }
.paper-school-directory-import table { min-width: 58rem; }
.paper-school-master-table { max-width: 100%; overflow-x: auto; overscroll-behavior-inline: contain; -webkit-overflow-scrolling: touch; }
.paper-school-master-table table { min-width: 74rem; table-layout: fixed; }
.paper-school-master-table th, .paper-school-master-table td { vertical-align: middle; }
.paper-school-master-table th:nth-child(1), .paper-school-master-table td:nth-child(1) { width: 4.25rem; }
.paper-school-master-table th:nth-child(2), .paper-school-master-table td:nth-child(2) { width: 22rem; }
.paper-school-master-table th:nth-child(3), .paper-school-master-table td:nth-child(3) { width: 11rem; }
.paper-school-master-table th:nth-child(4), .paper-school-master-table td:nth-child(4) { width: 9rem; }
.paper-school-master-table th:nth-child(5), .paper-school-master-table td:nth-child(5) { width: 6rem; }
.paper-school-master-table th:nth-child(6), .paper-school-master-table td:nth-child(6) { width: 10rem; }
.paper-school-master-table th:nth-child(7), .paper-school-master-table td:nth-child(7) { width: 9rem; }
.paper-school-name { display: grid; gap: .2rem; min-width: 0; }
.paper-school-name strong, .paper-school-name small, .paper-school-name .hint { overflow-wrap: anywhere; }
.paper-school-sequence { color: #667085; font-variant-numeric: tabular-nums; text-align: center; }
.paper-school-homepage-control { display: inline-flex; align-items: center; gap: .45rem; min-height: 44px; cursor: pointer; }
.paper-school-homepage-control input { width: 1.15rem; height: 1.15rem; margin: 0; }
.paper-school-homepage-control input[aria-busy="true"] + span { color: #667085; }
.paper-school-order-actions { display: flex; flex-wrap: nowrap; gap: .35rem; }
.paper-school-order-actions .text-button { min-width: 44px; min-height: 44px; padding-inline: .5rem; }
.paper-school-logo-editor { border-top: 1px solid rgba(15, 23, 42, .1); }
.paper-school-logo-large { width: 88px; height: 88px; object-fit: contain; }
@media (max-width: 1179px) { .school-logo-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); } }
@media (max-width: 900px) { .school-logo-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); } }
@media (max-width: 600px) {
  .school-logo-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .8rem .35rem; }
  .school-logo-box { width: 70px; height: 70px; }
  .school-logo-box img, .school-logo-placeholder { width: 58px; height: 58px; }
  .public-testimonial-admin-row { grid-template-columns: 1fr; }
  .public-testimonial-admin-row > img { width: min(100%, 18rem); }
  .school-directory-pagination { gap: .4rem; }
  .school-directory-pagination > span { min-width: 0; flex: 1; }
}
@media (max-width: 359px) { .school-logo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

/* Task109 centralized member messaging */
.message-campaign-admin-page, .member-message-page { min-width: 0; }
.message-campaign-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(18rem, .7fr); gap: 1rem; align-items: start; }
.message-campaign-layout > div, .message-campaign-editor { min-width: 0; }
.message-campaign-list, .message-campaign-detail, .message-campaign-editor, .member-message-panel { padding: 1rem; border: 1px solid rgba(15, 23, 42, .11); border-radius: 7px; background: #fff; }
.message-campaign-toolbar, .message-campaign-detail-head, .member-message-toolbar { display: flex; align-items: center; justify-content: space-between; gap: .75rem; }
.message-campaign-toolbar h3, .message-campaign-detail h3, .member-message-toolbar h3 { margin: 0; font-size: 1.08rem; }
.message-campaign-toolbar .field { min-width: min(100%, 15rem); margin-inline-start: auto; }
.message-campaign-records, .member-message-list { display: grid; gap: .65rem; margin-top: .85rem; }
.message-campaign-record { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .75rem; align-items: center; padding: .8rem; border: 1px solid rgba(15, 23, 42, .09); border-radius: 6px; background: #f8faf9; }
.message-campaign-record strong, .message-campaign-record span, .message-campaign-record small { display: block; }
.message-campaign-record strong { margin-block: .18rem; color: #17202a; }
.message-campaign-record span, .message-campaign-record small, .message-campaign-channel-status { color: #526964; font-size: .79rem; }
.message-campaign-record p { margin: .25rem 0; color: #34423f; font-size: .88rem; }
.message-campaign-form, .message-campaign-form-grid { display: grid; gap: .75rem; }
.message-campaign-form h3 { margin: 0; font-size: 1rem; }
.message-campaign-form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.message-campaign-editor .message-campaign-form-grid { grid-template-columns: 1fr; }
.message-campaign-editor .message-campaign-wide, .message-campaign-editor .message-campaign-fieldset, .message-campaign-editor .check-option { grid-column: auto; }
.message-campaign-wide, .message-campaign-fieldset, .message-campaign-form .check-option { grid-column: 1 / -1; }
.message-campaign-fieldset { display: flex; flex-wrap: wrap; gap: .55rem 1rem; margin: 0; padding: .75rem; border: 1px solid rgba(15, 23, 42, .12); border-radius: 6px; }
.message-campaign-fieldset label { display: inline-flex; gap: .4rem; align-items: center; }
.message-campaign-fieldset input[type="checkbox"], .message-campaign-form .check-option input[type="checkbox"] { flex: 0 0 18px; width: 18px; height: 18px; min-height: 0; margin: 0; }
.message-campaign-form .check-option { display: inline-flex; gap: .45rem; align-items: center; }
.message-campaign-detail { margin-top: 1rem; }
.message-campaign-detail-head { align-items: flex-start; margin-bottom: .8rem; }
.message-campaign-detail-head p { max-width: 58rem; white-space: pre-wrap; overflow-wrap: anywhere; }
.message-campaign-batch { margin-top: .75rem; }
.message-campaign-batch table { min-width: 780px; }
.message-campaign-batch td { vertical-align: top; }
.message-campaign-batch .button { min-width: 6.3rem; min-height: 38px; margin-top: .25rem; }
.message-channel-actions { display: flex; flex-wrap: wrap; gap: .25rem; align-items: center; }
.member-message-item { border: 1px solid rgba(15, 23, 42, .1); border-radius: 6px; background: #fff; }
.member-message-item.is-unread { border-inline-start: 4px solid #d9485f; background: #fffafb; }
.member-message-summary { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: .25rem .65rem; width: 100%; min-height: 48px; padding: .75rem; border: 0; background: transparent; color: #17202a; text-align: start; }
.member-message-summary > span { grid-row: span 2; align-self: start; padding: .18rem .4rem; border-radius: 4px; background: #e7eef0; color: #526964; font-size: .75rem; font-weight: 700; }
.member-message-summary strong, .member-message-summary small { min-width: 0; overflow-wrap: anywhere; }
.member-message-summary small { color: #667085; }
.member-message-detail { padding: 0 .8rem .8rem 4.4rem; color: #34423f; white-space: pre-wrap; overflow-wrap: anywhere; }
.message-campaign-empty, .message-campaign-loading, .member-message-empty, .member-message-loading { color: #667085; }
@media (max-width: 980px) { .message-campaign-layout { grid-template-columns: 1fr; } }
@media (max-width: 640px) {
  .message-campaign-toolbar, .message-campaign-detail-head, .member-message-toolbar { align-items: stretch; flex-direction: column; }
  .message-campaign-toolbar .field { width: 100%; min-width: 0; margin: 0; }
  .message-campaign-record { grid-template-columns: 1fr; }
  .message-campaign-record .row-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .message-campaign-form-grid { grid-template-columns: 1fr; }
  .message-campaign-wide, .message-campaign-fieldset, .message-campaign-form .check-option { grid-column: auto; }
  .member-message-detail { padding-inline-start: .8rem; }
}

/* Tasks 78/79: school mock exams and structured pinyin formula rows */
.school-mock-exam-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr)); gap: 1rem; }
.school-mock-exam-card { display: grid; align-content: space-between; gap: 1rem; padding: 1rem; border: 1px solid rgba(15, 118, 110, .18); border-radius: 1.15rem; background: #fff; }
.school-mock-exam-card h4 { margin: .55rem 0 .35rem; font-size: 1.08rem; }
.school-mock-exam-card dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .55rem; margin: .8rem 0; }
.school-mock-exam-card dl > div { padding: .55rem; border-radius: .75rem; background: #f1f7f5; }
.school-mock-exam-card dt { color: #64748b; font-size: .76rem; }
.school-mock-exam-card dd { margin: .15rem 0 0; font-weight: 750; overflow-wrap: anywhere; }
.textbook-paper-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr)); gap: 1rem; }
.textbook-paper-card { display: grid; align-content: space-between; gap: 1rem; padding: 1rem; border: 1px solid rgba(37, 99, 235, .18); border-radius: 1.15rem; background: #fff; }
.textbook-paper-card h4 { margin: .55rem 0 .35rem; font-size: 1.08rem; }
.textbook-paper-card dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .55rem; margin: .8rem 0; }
.textbook-paper-card dl > div { padding: .55rem; border-radius: .75rem; background: #f3f7ff; }
.textbook-paper-card dt { color: #64748b; font-size: .76rem; }
.textbook-paper-card dd { margin: .15rem 0 0; font-weight: 750; overflow-wrap: anywhere; }
.school-mock-flashcard-status { padding-top: .45rem; border-top: 1px dashed rgba(15, 118, 110, .22); }
.school-mock-question { display: grid; gap: .65rem; margin: 1rem 0; padding: 1rem; border: 1px solid rgba(15, 23, 42, .1); border-radius: 1rem; }
.school-mock-question legend { padding-inline: .35rem; font-weight: 800; }
.pinyin-formula-table { display: grid; gap: .65rem; }
.pinyin-formula-row { display: grid; grid-template-columns: minmax(10rem, 1fr) minmax(9rem, 1fr) minmax(5rem, auto); gap: .7rem; align-items: center; padding: .7rem; border-radius: .8rem; background: #f8fafc; }
.pinyin-formula-row input { min-width: 0; font-size: 1.05rem; }
.school-mock-result { text-align: center; }
.school-mock-result .result-score { margin: 1rem 0; color: #0f766e; font-size: clamp(2rem, 7vw, 4rem); font-weight: 900; }

.paper-word-list-admin { margin-block: 1rem; }
.paper-word-list-admin > summary { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; cursor: pointer; }
.paper-word-list-admin > summary span { color: #64748b; font-size: .86rem; font-weight: 500; }
.paper-word-list-layout { display: grid; grid-template-columns: minmax(18rem, .8fr) minmax(20rem, 1.2fr); gap: 1rem; margin-top: 1rem; }
.paper-word-list-picker { display: grid; gap: .55rem; max-height: 28rem; overflow: auto; }
.paper-word-list-picker-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .5rem; align-items: stretch; padding: .35rem; border: 1px solid rgba(15, 23, 42, .1); border-radius: .8rem; background: #fff; }
.paper-word-list-picker-row.is-active { border-color: #0f766e; background: #ecfdf5; box-shadow: inset 3px 0 #0f766e; }
.paper-word-list-picker-row > [data-paper-word-list-select] { display: grid; gap: .2rem; min-height: 48px; padding: .45rem; border: 0; background: transparent; color: #0f172a; text-align: left; }
.paper-word-list-picker-row > .button { align-self: center; min-height: 42px; }
.paper-word-list-picker small, .paper-word-list-item small { color: #64748b; }
.paper-word-list-detail { margin-top: 1rem; }
.paper-word-list-items { display: grid; gap: .75rem; margin-block: 1rem; }
.paper-word-list-item { display: grid; grid-template-columns: minmax(9rem, 1.2fr) repeat(5, minmax(6rem, .8fr)) minmax(8rem, 1fr) auto; gap: .65rem; align-items: end; padding: .8rem; border: 1px solid rgba(15, 23, 42, .09); border-radius: 1rem; background: #f8fafc; }
.paper-word-list-item > div, .paper-word-list-item label { display: grid; gap: .3rem; min-width: 0; }
.paper-word-list-item-identity { grid-template-columns: auto minmax(0, 1fr); align-items: center; }
.paper-word-list-item-identity > div { display: grid; gap: .25rem; min-width: 0; }
.paper-word-list-item-check { align-self: center; }
.paper-word-list-item-actions { display: grid; gap: .4rem; }
.paper-word-list-item input, .paper-word-list-item select { width: 100%; min-height: 44px; }
.paper-word-list-note { grid-column: span 2; }
.paper-word-list-selection-toolbar { display: flex; flex-wrap: wrap; gap: .7rem; align-items: center; justify-content: flex-end; margin-top: 1rem; padding: .65rem .8rem; border: 1px solid rgba(15, 118, 110, .18); border-radius: .8rem; background: #f3faf8; }
.paper-word-list-selection-toolbar > span { margin-right: auto; color: #526964; font-size: .9rem; }
.paper-word-list-import-preview { display: grid; gap: .8rem; margin-top: 1rem; padding: .9rem; border: 1px solid rgba(15, 118, 110, .22); border-radius: 1rem; background: #f7fcfb; }
.paper-word-list-mapping { display: grid; gap: .35rem; padding: .7rem .8rem; border-radius: .75rem; background: #fff; }
.paper-word-list-mapping p { margin: 0; overflow-wrap: anywhere; }
.paper-word-list-import-warnings { margin: 0; padding-left: 1.25rem; color: #9a3412; }
.paper-word-list-import-preview table { min-width: 58rem; }
.paper-word-list-table-panel { display: grid; gap: .9rem; margin-top: 1rem; }
.paper-word-list-filter { display: grid; grid-template-columns: minmax(12rem, 1.6fr) repeat(3, minmax(9rem, .8fr)) auto auto; gap: .7rem; align-items: end; }
.paper-word-list-table { max-width: 100%; overflow-x: auto; overflow-y: hidden; overscroll-behavior-inline: contain; scrollbar-gutter: stable; }
.paper-word-list-table table { width: max-content; min-width: 92rem; table-layout: auto; }
.paper-word-list-table th, .paper-word-list-table td { min-width: 6rem; writing-mode: horizontal-tb; word-break: normal; }
.paper-word-list-table th { white-space: nowrap; }
.paper-word-list-table th:nth-child(1), .paper-word-list-table td:nth-child(1),
.paper-word-list-table th:nth-child(3), .paper-word-list-table td:nth-child(3) { min-width: 12rem; }
.paper-word-list-table th:nth-child(2), .paper-word-list-table td:nth-child(2) { min-width: 10rem; }
.paper-word-list-table th:nth-child(5), .paper-word-list-table td:nth-child(5),
.paper-word-list-table th:nth-child(6), .paper-word-list-table td:nth-child(6) { min-width: 15rem; }
.paper-word-list-table th:last-child, .paper-word-list-table td:last-child { min-width: 16rem; }
.paper-word-list-table tr.is-selected td { background: #ecfdf5; }
.paper-word-list-table .row-actions { flex-wrap: nowrap; }
.paper-word-list-pagination { display: flex; justify-content: flex-end; align-items: center; gap: .6rem; }
.paper-word-list-editor-dialog { width: min(56rem, calc(100vw - 2rem)); max-height: min(90vh, 58rem); }
.paper-word-list-editor-dialog .dialog-form { overflow: auto; max-height: calc(90vh - 2rem); }
.paper-word-flashcard-readiness { margin-block: 1rem; padding: .85rem; border: 1px solid rgba(15, 118, 110, .2); border-radius: 1rem; background: #f3faf8; }
.paper-word-flashcard-readiness > summary { display: flex; justify-content: space-between; gap: .8rem; cursor: pointer; }
.paper-word-flashcard-readiness > summary span { color: #526964; font-size: .84rem; }
.paper-word-flashcard-preview-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .7rem; margin-block: .85rem; }
.paper-word-flashcard-preview-grid article { min-width: 0; display: grid; place-items: center; gap: .35rem; min-height: 9rem; padding: .8rem; border: 1px solid rgba(15, 118, 110, .16); border-radius: .85rem; background: #fff; text-align: center; }
.paper-word-flashcard-preview-grid strong { max-width: 100%; font-size: clamp(1.6rem, 3vw, 2.5rem); overflow-wrap: anywhere; }
.paper-word-flashcard-preview-grid span { max-width: 100%; color: #0f766e; font-size: clamp(1rem, 2vw, 1.35rem); overflow-wrap: anywhere; }
.paper-word-list-publish fieldset { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
@media (max-width: 1100px) {
  .paper-word-list-filter { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .paper-word-list-item { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .paper-word-list-item > div, .paper-word-list-note { grid-column: 1 / -1; }
  .paper-word-list-item-actions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .paper-word-list-item-actions > button { min-height: 48px; }
}
@media (max-width: 900px) {
  .paper-word-list-layout { grid-template-columns: 1fr; }
  .module-page.public-trust-directory-page { padding-block-end: calc(5rem + env(safe-area-inset-bottom, 0px)); }
  .school-directory-pagination { scroll-margin-block-end: calc(10rem + env(safe-area-inset-bottom, 0px)); }
}
@media (max-width: 700px) {
  .paper-school-master > .panel-title-row { align-items: stretch; flex-direction: column; }
  .paper-school-master > .panel-title-row > .button { width: 100%; min-height: 44px; }
  .paper-school-master-table { margin-inline: -.25rem; padding-inline: .25rem; scroll-padding-inline: .25rem; }
  .paper-school-master-table table { min-width: 66rem; }
  .paper-school-master-table th:nth-child(2), .paper-school-master-table td:nth-child(2) { width: 18rem; }
  .paper-school-master-main { align-items: flex-start; }
  .paper-school-order-actions .text-button { min-height: 46px; }
  .school-mock-exam-card dl, .textbook-paper-card dl { grid-template-columns: 1fr; }
  .pinyin-formula-row { grid-template-columns: 1fr; }
  .school-mock-exam-card .row-actions, .textbook-paper-card .row-actions { align-items: stretch; flex-direction: column; }
  .school-mock-exam-card .row-actions > *, .textbook-paper-card .row-actions > * { width: 100%; min-height: 48px; }
  .paper-word-list-admin > summary { align-items: flex-start; flex-direction: column; }
  .paper-word-list-layout { grid-template-columns: 1fr; }
  .paper-word-list-picker-row { grid-template-columns: 1fr; }
  .paper-word-list-item { grid-template-columns: 1fr; }
  .paper-word-list-note { grid-column: auto; }
  .paper-word-list-item-actions { grid-template-columns: 1fr 1fr; }
  .paper-word-list-selection-toolbar { align-items: stretch; }
  .paper-word-list-selection-toolbar > span { width: 100%; margin: 0; }
  .paper-word-list-filter { grid-template-columns: 1fr; }
  .paper-word-list-filter > button { width: 100%; }
  .paper-word-list-pagination { justify-content: stretch; flex-wrap: wrap; }
  .paper-word-list-pagination > button { flex: 1; }
  .paper-word-list-publish fieldset { grid-template-columns: 1fr; }
  .paper-word-flashcard-readiness > summary { flex-direction: column; }
  .paper-word-flashcard-preview-grid { grid-template-columns: 1fr; }
}

/* Task95: plan-gated continuous drill mode */
.drill-practice-panel { border-inline-start: 4px solid #0f766e; }
.drill-practice-panel .inline-management-form { grid-template-columns: minmax(11rem, 1fr) minmax(11rem, 1fr) minmax(8rem, .55fr) auto; align-items: end; }
.drill-practice-panel .field { min-width: 0; }
.drill-practice-panel select, .drill-practice-panel input { width: 100%; }
@media (max-width: 820px) {
  .drill-practice-panel .inline-management-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .drill-practice-panel .inline-management-form { grid-template-columns: 1fr; }
  .drill-practice-panel .inline-management-form .button { width: 100%; }
}

/* Task102: versioned copyright and disclaimer presentation */
.copyright-disclaimer {
  min-inline-size: 0;
  overflow: hidden;
  border: 1px solid rgba(15, 118, 110, 0.2);
  border-radius: 1.1rem;
  background: linear-gradient(135deg, rgba(240, 253, 250, 0.96), rgba(255, 251, 235, 0.9));
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.06);
}

.public-home-copyright-disclaimer {
  padding-inline: 1rem;
  padding-block-end: calc(1.25rem + env(safe-area-inset-bottom));
}

.learning-home > .copyright-disclaimer,
.school-mock-exam-panel > .copyright-disclaimer {
  inline-size: 100%;
}

.school-mock-exam-panel > .copyright-disclaimer {
  margin-block-end: 1rem;
}

.copyright-disclaimer-details > summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.8rem;
  align-items: center;
  min-block-size: 4.5rem;
  padding: 1rem 1.1rem;
  color: #134e4a;
  cursor: pointer;
}

.copyright-disclaimer-details > summary:focus-visible {
  outline: 3px solid #0f766e;
  outline-offset: -3px;
}

.copyright-disclaimer-title-wrap {
  display: grid;
  min-inline-size: 0;
  gap: 0.25rem;
}

.copyright-disclaimer-title-wrap strong {
  color: #0f3d3a;
  font-size: 1.02rem;
  overflow-wrap: anywhere;
}

.copyright-disclaimer-title-wrap small {
  max-inline-size: 76ch;
  color: #526964;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.copyright-disclaimer-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: #0f766e;
  font-size: 0.86rem;
  font-weight: 800;
  white-space: nowrap;
}

.copyright-disclaimer-toggle::before {
  content: "+";
  display: grid;
  place-items: center;
  inline-size: 1.5rem;
  block-size: 1.5rem;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.1);
}

.copyright-disclaimer-toggle .when-open {
  display: none;
}

.copyright-disclaimer-details[open] .copyright-disclaimer-toggle::before {
  content: "−";
}

.copyright-disclaimer-details[open] .copyright-disclaimer-toggle .when-closed {
  display: none;
}

.copyright-disclaimer-details[open] .copyright-disclaimer-toggle .when-open {
  display: inline;
}

.copyright-disclaimer-body {
  display: grid;
  gap: 0.8rem;
  padding: 1rem 1.1rem 1.15rem;
  border-block-start: 1px solid rgba(15, 118, 110, 0.14);
  background: rgba(255, 255, 255, 0.72);
}

.copyright-disclaimer-body p {
  max-inline-size: 80ch;
  margin: 0;
  color: #334155;
  line-height: 1.75;
  text-align: start;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.copyright-disclaimer-body .copyright-disclaimer-version {
  color: #64748b;
  font-size: 0.78rem;
}

.copyright-disclaimer-preview-note {
  padding: 0.6rem 0.7rem;
  border-radius: 0.7rem;
  background: #fff7ed;
  color: #9a3412 !important;
  font-weight: 700;
}

.copyright-disclaimer.is-placement-disabled {
  border-style: dashed;
  opacity: 0.58;
}

.copyright-disclaimer-admin-host {
  overflow: visible;
}

.copyright-disclaimer-admin {
  display: grid;
  min-inline-size: 0;
  gap: 1rem;
}

.copyright-disclaimer-current,
.copyright-disclaimer-form,
.copyright-disclaimer-preview-area,
.copyright-disclaimer-history-section,
.copyright-disclaimer-audit {
  min-inline-size: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: #fff;
}

.copyright-disclaimer-current {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
}

.copyright-disclaimer-current p {
  margin-block: 0.35rem 0;
  color: var(--muted);
}

.copyright-disclaimer-current dl {
  display: grid;
  grid-template-columns: repeat(4, minmax(7rem, auto));
  gap: 0.75rem;
  margin: 0;
}

.copyright-disclaimer-current dt {
  color: var(--muted);
  font-size: 0.78rem;
}

.copyright-disclaimer-current dd {
  margin: 0.15rem 0 0;
  font-weight: 750;
}

.copyright-disclaimer-form-grid {
  display: grid;
  grid-template-columns: minmax(14rem, 0.75fr) minmax(18rem, 1.25fr);
  gap: 0.8rem;
}

.copyright-disclaimer-placement-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 0;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
}

.copyright-disclaimer-placement-options legend {
  padding-inline: 0.3rem;
  font-weight: 800;
}

.copyright-disclaimer-placement-options label {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  min-block-size: 2.75rem;
  padding-inline: 0.75rem;
  border-radius: 0.7rem;
  background: #f4f8f7;
  cursor: pointer;
}

[data-copyright-disclaimer-paragraph-list] {
  display: grid;
  gap: 0.8rem;
}

.copyright-disclaimer-paragraph {
  position: relative;
  min-inline-size: 0;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  background: #fbfdfc;
}

.copyright-disclaimer-paragraph textarea {
  inline-size: 100%;
  min-block-size: 7rem;
  resize: vertical;
}

.copyright-disclaimer-paragraph .text-button {
  justify-self: end;
}

.copyright-disclaimer-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.copyright-disclaimer-preview-frame {
  min-inline-size: 0;
  padding: 0.75rem;
  border: 1px solid rgba(15, 23, 42, 0.09);
  border-radius: 0.9rem;
  background: #f8fafc;
}

.copyright-disclaimer-preview-frame h4 {
  margin: 0 0 0.65rem;
}

.copyright-disclaimer-preview-frame .copyright-disclaimer-details > summary {
  grid-template-columns: 1fr;
}

.copyright-disclaimer-preview-frame .copyright-disclaimer-toggle {
  justify-self: start;
}

.copyright-disclaimer-device-heading {
  margin-block-start: 1.25rem;
}

.copyright-disclaimer-device-preview-grid {
  display: grid;
  gap: 1rem;
}

.copyright-disclaimer-device-frame {
  display: grid;
  gap: 0.55rem;
  min-inline-size: 0;
  padding: 0.75rem;
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: 0.9rem;
  background: #eef3f2;
}

.copyright-disclaimer-device-frame > header {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  color: #526964;
}

.copyright-disclaimer-device-viewport {
  inline-size: 100%;
  max-inline-size: 100%;
  margin-inline: auto;
  padding: 0.7rem;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 0.75rem;
  background: #fff;
}

.copyright-disclaimer-device-frame.is-ipad .copyright-disclaimer-device-viewport {
  max-inline-size: 51.25rem;
}

.copyright-disclaimer-device-frame.is-mobile .copyright-disclaimer-device-viewport {
  max-inline-size: 24.375rem;
}

.copyright-disclaimer-device-frame.is-mobile .copyright-disclaimer-details > summary {
  grid-template-columns: 1fr;
  padding: 0.9rem;
}

.copyright-disclaimer-device-frame.is-mobile .copyright-disclaimer-toggle {
  justify-self: start;
}

.copyright-disclaimer-history {
  display: grid;
  gap: 0.7rem;
}

.copyright-disclaimer-history-item {
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: #fbfdfc;
}

.copyright-disclaimer-history-item > summary {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  cursor: pointer;
}

.copyright-disclaimer-history-item > summary small,
.copyright-disclaimer-audit p span {
  color: var(--muted);
}

.copyright-disclaimer-history-item > div {
  padding-block-start: 0.75rem;
}

.copyright-disclaimer-history-item p {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.copyright-disclaimer-audit {
  display: grid;
  gap: 0.5rem;
}

.copyright-disclaimer-audit p {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0;
  padding-block: 0.45rem;
  border-block-end: 1px solid var(--line);
}

@media (max-width: 980px) {
  .copyright-disclaimer-current,
  .copyright-disclaimer-form-grid {
    grid-template-columns: 1fr;
  }

  .copyright-disclaimer-current dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .copyright-disclaimer-preview-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  #privacy-policy-dialog.modal-dialog {
    position: fixed;
    inset: 0;
    inline-size: 100dvw;
    max-inline-size: 100dvw;
    block-size: 100dvh;
    max-block-size: 100dvh;
    margin: 0;
    border: 0;
    border-radius: 0;
  }

  #privacy-policy-dialog.modal-dialog > .privacy-policy-dialog-panel {
    inline-size: 100%;
    block-size: 100dvh;
    max-block-size: 100dvh;
    padding: 0;
  }
}

@media (max-width: 620px) {
  .public-home-copyright-disclaimer {
    padding-inline: 0.8rem;
    padding-block-end: calc(1.25rem + env(safe-area-inset-bottom));
  }

  .copyright-disclaimer-details > summary {
    grid-template-columns: 1fr;
    min-block-size: 0;
    padding: 0.9rem;
  }

  .copyright-disclaimer-toggle {
    justify-self: start;
  }

  .copyright-disclaimer-body {
    padding: 0.9rem;
  }

  .copyright-disclaimer-current dl,
  .copyright-disclaimer-placement-options {
    display: grid;
    grid-template-columns: 1fr;
  }

  .copyright-disclaimer-history-item > summary,
  .copyright-disclaimer-audit p {
    align-items: flex-start;
    flex-direction: column;
  }

  .copyright-disclaimer-form .row-actions > *,
  .copyright-disclaimer-history-item .row-actions > * {
    inline-size: 100%;
  }
}

/* Task 110: semantic site brand palette and compact branded mobile navigation. */
.button:not(.ghost):not(.danger):not(.whatsapp) {
  border-color: var(--brand-primary-strong);
  background: var(--brand-primary-strong);
  color: var(--brand-on-primary-strong);
  -webkit-text-fill-color: currentColor;
  box-shadow: 0 10px 22px color-mix(in srgb, var(--brand-primary) 22%, transparent);
}

.button:not(.ghost):not(.danger):not(.whatsapp):hover:not(:disabled),
.button:not(.ghost):not(.danger):not(.whatsapp):focus-visible:not(:disabled) {
  border-color: var(--brand-primary-hover);
  background: var(--brand-primary-hover);
  color: var(--brand-on-primary-strong);
}

.button.ghost:not(.danger),
.text-button:not(.danger) {
  color: var(--brand-primary-strong);
  -webkit-text-fill-color: currentColor;
}

.button.ghost:not(.danger):is(:hover, :active, :focus-visible):not(:disabled),
.tab.is-active,
.segmented-control button.is-active {
  border-color: var(--brand-primary);
  background: var(--brand-primary-soft);
  color: var(--brand-primary-strong);
  box-shadow: inset 0 -3px 0 var(--brand-primary);
}

:where(input, select, textarea):focus-visible,
:where(.button:not(.danger), .tab, .text-button:not(.danger), a[href]):focus-visible {
  outline-color: var(--brand-focus);
}

:where(input, select, textarea):focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-primary) 22%, transparent);
}

.mobile-nav-appearance {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
  margin-block: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-soft, #f8fdfb);
}

.mobile-nav-appearance legend { padding-inline: 6px; font-weight: 800; }
.mobile-nav-follow-theme,
.mobile-nav-logo-hint { grid-column: 1 / -1; }
.mobile-nav-logo-hint { margin: 0; }
.mobile-nav-color-control { display: grid; grid-template-columns: 3rem minmax(7rem, 1fr) auto; gap: 8px; align-items: center; }
.mobile-nav-color-control input[type="color"] { inline-size: 3rem; min-block-size: 2.75rem; padding: 3px; }
.mobile-nav-color-control output { min-inline-size: 5.2rem; color: var(--muted); font-family: ui-monospace, Consolas, monospace; }
.mobile-nav-size-control { display: grid; grid-template-columns: minmax(0, 1fr) 3rem; gap: 10px; align-items: center; }
.mobile-nav-size-control output { color: var(--brand-primary-strong); font-weight: 800; }
.mobile-nav-appearance.is-following-site-theme .mobile-nav-color-control { opacity: 0.62; }

.bottom-nav {
  --mobile-nav-background: var(--brand-primary);
  --mobile-nav-foreground: var(--brand-on-primary);
  --mobile-nav-active: var(--brand-on-primary);
  --mobile-nav-focus: var(--brand-focus);
  --mobile-nav-icon-size: 22px;
  overflow: visible;
  background: var(--mobile-nav-background);
  color: var(--mobile-nav-foreground);
}

.bottom-nav > a,
.bottom-nav > button {
  inline-size: 100%;
  min-inline-size: 0;
  display: grid;
  grid-template-rows: 1.7rem 1.6rem;
  place-items: end center;
  align-content: end;
  gap: 0;
  padding: 0.25rem 0.08rem 0.2rem;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--mobile-nav-foreground);
  opacity: 0.8;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.bottom-nav > :is(a, button):is(.is-active, [aria-current="page"]) {
  background: transparent;
  color: var(--mobile-nav-active);
  opacity: 1;
  box-shadow: none;
}

.bottom-nav > .is-active:not(.bottom-nav-home),
.bottom-nav > [aria-current="page"]:not(.bottom-nav-home) {
  background: transparent;
  color: var(--mobile-nav-active);
  opacity: 1;
  box-shadow: none;
}

.bottom-nav > :is(a, button):not(.bottom-nav-home):is(.is-active, [aria-current="page"])::after {
  content: "";
  position: absolute;
  inset-block-start: 0.18rem;
  inline-size: 1.2rem;
  block-size: 3px;
  border-radius: 999px;
  background: currentColor;
}

.bottom-nav > :is(a, button):not(.bottom-nav-home) { position: relative; }
.bottom-nav > :is(a, button):focus-visible { outline: 3px solid var(--mobile-nav-focus); outline-offset: -2px; opacity: 1; }
.bottom-nav-icon { display: grid; inline-size: var(--mobile-nav-icon-size); block-size: var(--mobile-nav-icon-size); place-items: center; font-size: var(--mobile-nav-icon-size); line-height: 1; }
.bottom-nav-icon img:not(.bottom-nav-home-logo),
.bottom-nav-icon svg { inline-size: 100%; block-size: 100%; object-fit: contain; }
.bottom-nav-label { display: block; max-inline-size: 100%; font-size: clamp(10px, 2.8vw, 12px); font-weight: 750; line-height: 1.08; overflow-wrap: anywhere; }

.bottom-nav .bottom-nav-home {
  inline-size: 100%;
  block-size: auto;
  min-block-size: 0;
  margin: 0;
  padding: 0.25rem 0.08rem 0.2rem;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--mobile-nav-foreground);
  box-shadow: none;
}

.bottom-nav .bottom-nav-home-disc {
  inline-size: 64px;
  block-size: 64px;
  padding: 4px;
  border: 4px solid #ffffff;
  border-radius: 50%;
  background: #ffffff;
  transform: translateY(-24px);
  box-shadow: 0 7px 18px rgb(16 31 30 / 28%);
  overflow: hidden;
}

.bottom-nav .bottom-nav-home-logo {
  display: block;
  inline-size: 100%;
  block-size: 100%;
  object-fit: contain;
  border-radius: 50%;
}

.bottom-nav .bottom-nav-home .bottom-nav-label {
  margin: 0;
  color: inherit;
  transform: none;
}

.mobile-nav-preview.bottom-nav {
  position: absolute;
  inset: auto 0 0;
  display: grid !important;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-items: end;
  min-block-size: 76px;
  padding: 13px 4px 6px;
  border: 0;
  border-radius: 0;
  box-shadow: 0 -10px 24px rgb(15 43 40 / 16%);
}

.site-brand-preview-bottom-nav {
  display: none;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-items: end;
  min-block-size: 72px;
  padding: 12px 3px 5px;
  background: var(--brand-primary);
  color: var(--brand-on-primary);
}
.site-brand-preview-bottom-nav > span { display: grid; place-items: center; gap: 3px; font-size: 20px; opacity: .82; }
.site-brand-preview-bottom-nav small { font-size: 10px; }
.site-brand-preview-bottom-nav .is-home i { display: grid; inline-size: 64px; block-size: 64px; place-items: center; margin-block-start: -28px; padding: 4px; border: 4px solid #fff; border-radius: 50%; background: #fff; box-shadow: 0 6px 16px rgb(0 0 0 / 22%); }
.site-brand-preview-bottom-nav .is-home img { inline-size: 100%; block-size: 100%; object-fit: contain; border-radius: 50%; }
.site-brand-preview-frame.is-mobile .site-brand-preview-bottom-nav { display: grid; }

@media (max-width: 900px) {
  body main { padding-block-end: calc(6.6rem + env(safe-area-inset-bottom, 0px)); }
  body.admin-module-active main { padding-block-end: calc(1.5rem + env(safe-area-inset-bottom, 0px)); }
  body.admin-module-active #bottom-nav { display: none !important; }
  body[data-shell="app"]:not(.admin-module-active) .toast {
    inset-block-end: calc(76px + env(safe-area-inset-bottom, 0px) + 1rem);
  }
  .bottom-nav:not([hidden]) {
    position: fixed;
    z-index: 24;
    inset-inline: 0;
    inset-block-end: 0;
    display: grid !important;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: end;
    inline-size: 100%;
    min-block-size: calc(76px + env(safe-area-inset-bottom, 0px));
    padding: 13px max(3px, env(safe-area-inset-right, 0px)) env(safe-area-inset-bottom, 0px) max(3px, env(safe-area-inset-left, 0px));
    border: 0;
    border-radius: 0;
    background: var(--mobile-nav-background);
    box-shadow: 0 -10px 28px rgb(15 43 40 / 18%);
    backdrop-filter: none;
  }
}

@media (min-width: 769px) and (max-width: 900px) {
  .bottom-nav .bottom-nav-home-disc { inline-size: 68px; block-size: 68px; transform: translateY(-26px); }
  .bottom-nav-label { font-size: 12px; }
}

@media (max-width: 560px) {
  .mobile-nav-appearance { grid-template-columns: 1fr; }
  .mobile-nav-follow-theme,
  .mobile-nav-logo-hint { grid-column: auto; }
}

@media (max-width: 359px) {
  .bottom-nav > a,
  .bottom-nav > button { padding-inline: 0; }
  .bottom-nav-label { font-size: 10px; }
  .bottom-nav .bottom-nav-home-disc { inline-size: 56px; block-size: 56px; transform: translateY(-20px); }
}

/* Website brand: quick theme colour presets. */
.site-brand-theme-field {
  align-content: start;
}

.site-brand-theme-field > small {
  color: var(--muted);
  line-height: 1.45;
}

.site-brand-theme-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block-start: 0.55rem;
}

.site-brand-theme-presets button {
  inline-size: 2.1rem;
  block-size: 2.1rem;
  border: 3px solid #fff;
  border-radius: 50%;
  padding: 0;
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.18);
  cursor: pointer;
}

.site-brand-theme-presets button:is(:hover, :focus-visible, .is-active) {
  box-shadow: 0 0 0 3px var(--brand-primary-soft-strong);
  transform: translateY(-1px);
}

.site-brand-theme-presets .theme-preset-green { background: #063f3c; }
.site-brand-theme-presets .theme-preset-blue { background: #245b8a; }
.site-brand-theme-presets .theme-preset-red { background: #7f3546; }
.site-brand-theme-presets .theme-preset-purple { background: #644a8f; }
.site-brand-theme-presets .theme-preset-orange { background: #a84f24; }

/* Home Banner manager: wide desktop art, square mobile art and decode fallback. */
.home-banner-slide,
.home-banner-skeleton {
  position: relative;
  min-inline-size: 100%;
  block-size: 100%;
  background:
    linear-gradient(110deg, var(--brand-primary-soft) 8%, #ffffff 26%, var(--brand-primary-soft) 44%) 0 0 / 220% 100%;
}
.home-banner-skeleton { display: grid; place-items: center; color: var(--muted); animation: home-banner-skeleton 1.4s linear infinite; }
.home-banner-skeleton.is-empty { animation: none; }
.home-banner-link,
.home-banner-slide picture { display: block; inline-size: 100%; block-size: 100%; }
.home-banner-slide img { opacity: 0; transition: opacity .22s ease; }
.home-banner-slide.is-loaded img { opacity: 1; }
.home-banner-slide img[hidden] { display: none; }
.home-banner-slide.is-failed::after { content: "Banner圖片暫未能顯示"; position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-weight: 700; }

@keyframes home-banner-skeleton { to { background-position: -220% 0; } }

@media (max-width: 700px) {
  .home-banner.is-mobile-fallback .home-banner-viewport { aspect-ratio: var(--home-banner-fallback-aspect, 3406 / 900); }
}

.home-banner-admin,
.home-banner-admin-list {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.home-banner-admin-card {
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
  padding: clamp(1rem, 2vw, 1.4rem);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface, #fff);
  box-shadow: 0 12px 30px rgb(15 43 40 / 8%);
}

.home-banner-admin-card.is-new {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px var(--brand-primary-soft);
}

.home-banner-admin-previews {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(180px, .7fr);
  gap: 1rem;
  align-items: start;
}

.home-banner-admin-preview {
  min-inline-size: 0;
  margin: 0;
}

.home-banner-admin-preview figcaption {
  margin-block-end: .45rem;
  color: var(--muted);
  font-size: .82rem;
  font-weight: 750;
}

.home-banner-admin-preview > div {
  display: grid;
  place-items: center;
  overflow: hidden;
  inline-size: 100%;
  border: 1px dashed color-mix(in srgb, var(--brand-primary) 38%, var(--line));
  border-radius: 14px;
  background: color-mix(in srgb, var(--brand-primary-soft) 42%, #fff);
  color: var(--muted);
}

.home-banner-admin-preview.is-desktop > div { aspect-ratio: 3406 / 900; }
.home-banner-admin-preview.is-mobile > div { aspect-ratio: 1; }

.home-banner-admin-preview img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: contain;
}

.home-banner-admin-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: .9rem;
  align-items: start;
}

@media (max-width: 700px) {
  .home-banner-admin-previews { grid-template-columns: minmax(0, 1fr); }
  .home-banner-admin-card .panel-title-row { align-items: flex-start; }
}

/* Member-facing pages use the same horizontal navigation language as the public homepage. */
body[data-shell="app"]:not(.admin-module-active) .site-header,
body[data-shell="app"]:not(.admin-module-active).shell-menu-open .site-header {
  position: sticky;
  inset: 0 0 auto;
  z-index: 20;
  display: block;
  inline-size: 100%;
  block-size: auto;
  padding: 0;
  border: 0;
  border-block-start: 4px solid var(--brand-primary, #0f5f55);
  border-block-end: 1px solid color-mix(in srgb, var(--brand-primary, #0f5f55) 18%, #dfe8e4);
  background: color-mix(in srgb, #ffffff 96%, var(--brand-primary-soft, #edf6f2));
  box-shadow: 0 8px 24px color-mix(in srgb, var(--brand-primary-strong, #0b443d) 8%, transparent);
  transform: none;
  backdrop-filter: blur(14px);
}

body[data-shell="app"]:not(.admin-module-active) .site-header-inner {
  display: grid;
  grid-template-columns: minmax(13rem, 1fr) minmax(0, auto) minmax(3rem, 1fr);
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
  inline-size: min(100%, 96rem);
  min-block-size: 4.6rem;
  margin-inline: auto;
  padding: 0.65rem clamp(1rem, 3vw, 2.5rem);
}

body[data-shell="app"]:not(.admin-module-active) .brand {
  min-inline-size: 0;
  padding: 0;
  border: 0;
}

body[data-shell="app"]:not(.admin-module-active) .brand-logo {
  inline-size: 2.75rem;
  block-size: 2.75rem;
  flex-basis: 2.75rem;
  border: 1px solid color-mix(in srgb, var(--brand-primary, #0f5f55) 18%, #ffffff);
  border-radius: 50%;
  box-shadow: 0 5px 14px color-mix(in srgb, var(--brand-primary-strong, #0b443d) 14%, transparent);
}

body[data-shell="app"]:not(.admin-module-active) .brand strong {
  color: var(--brand-primary-strong, #0b443d);
}

body[data-shell="app"]:not(.admin-module-active) .brand span {
  color: color-mix(in srgb, var(--brand-primary-strong, #0b443d) 62%, #ffffff);
}

body[data-shell="app"]:not(.admin-module-active) .nav {
  display: flex;
  inline-size: auto;
  max-inline-size: 100%;
  flex-wrap: nowrap;
  justify-content: center;
  gap: 0.4rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.15rem;
  scrollbar-width: thin;
}

body[data-shell="app"]:not(.admin-module-active) .nav-section-label {
  display: none;
}

body[data-shell="app"]:not(.admin-module-active) .nav .tab {
  flex: 0 0 auto;
  min-block-size: 2.6rem;
  justify-content: center;
  border: 1px solid color-mix(in srgb, var(--brand-primary, #0f5f55) 18%, #d8e4df);
  border-radius: 6px;
  padding: 0.55rem 0.85rem;
  background: #ffffff;
  color: var(--brand-primary-strong, #0b443d);
  box-shadow: none;
  font-size: 0.88rem;
  font-weight: 750;
  white-space: nowrap;
  transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

body[data-shell="app"]:not(.admin-module-active) .nav .tab:is(:hover, :focus-visible) {
  border-color: color-mix(in srgb, var(--brand-primary, #0f5f55) 42%, #d8e4df);
  background: var(--brand-primary-soft, #edf6f2);
  color: var(--brand-primary-strong, #0b443d);
  transform: translateY(-1px);
}

body[data-shell="app"]:not(.admin-module-active) .nav .tab.is-active {
  border-color: var(--brand-primary, #0f5f55);
  border-inline-start-color: var(--brand-primary, #0f5f55);
  border-block-end-color: var(--brand-primary, #0f5f55);
  background: var(--brand-primary, #0f5f55);
  color: var(--brand-on-primary, #ffffff);
  box-shadow: inset 0 -3px 0 color-mix(in srgb, var(--brand-focus, #e5a04c) 78%, #ffffff);
}

body[data-shell="app"]:not(.admin-module-active) main {
  margin-inline-start: 0;
  padding: 0;
}

body[data-shell="app"]:not(.admin-module-active) #app-view {
  max-inline-size: 96rem;
  margin-inline: auto;
  padding: 0 clamp(1rem, 3vw, 2.5rem) 3rem;
}

body[data-shell="app"]:not(.admin-module-active) .page-head {
  position: relative;
  inset-block-start: auto;
  z-index: 1;
  margin-block-end: 1.25rem;
  background: transparent;
  backdrop-filter: none;
}

body[data-shell="app"]:not(.admin-module-active) .shell-menu-button {
  display: none;
}

@media (max-width: 900px) {
  body[data-shell="app"]:not(.admin-module-active) .site-header-inner {
    grid-template-columns: minmax(10rem, auto) minmax(0, 1fr);
    gap: 0.65rem;
    padding-inline: 0.85rem;
  }

  body[data-shell="app"]:not(.admin-module-active) .nav {
    justify-content: flex-start;
  }

  body[data-shell="app"]:not(.admin-module-active) .nav .tab {
    min-block-size: 2.45rem;
    padding-inline: 0.7rem;
    font-size: 0.82rem;
  }
}

@media (max-width: 620px) {
  body[data-shell="app"]:not(.admin-module-active) .site-header-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.45rem;
    padding: 0.55rem 0.8rem 0.45rem;
  }

  body[data-shell="app"]:not(.admin-module-active) .brand {
    gap: 0.55rem;
  }

  body[data-shell="app"]:not(.admin-module-active) .brand-logo {
    inline-size: 2.25rem;
    block-size: 2.25rem;
    flex-basis: 2.25rem;
  }

  body[data-shell="app"]:not(.admin-module-active) .brand strong {
    font-size: 0.9rem;
  }

  body[data-shell="app"]:not(.admin-module-active) .brand span {
    display: none;
  }

  body[data-shell="app"]:not(.admin-module-active) .nav {
    inline-size: 100%;
    justify-content: flex-start;
    padding-block-end: 0.2rem;
  }

  body[data-shell="app"]:not(.admin-module-active) .nav .tab {
    min-block-size: 2.35rem;
    padding: 0.45rem 0.65rem;
    font-size: 0.78rem;
  }

  body[data-shell="app"]:not(.admin-module-active) #app-view {
    padding-inline: 0.8rem;
    padding-block-end: calc(6rem + env(safe-area-inset-bottom, 0px));
  }
}

/* G003: keep school, school-exam and paper administration visibly separated. */
.paper-word-list-admin-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.paper-word-list-admin-heading > div {
  display: grid;
  gap: 0.25rem;
}

.paper-word-list-admin-heading strong {
  font-size: 1.05rem;
}

.paper-word-list-admin-heading span {
  color: var(--muted, #64748b);
  font-size: 0.86rem;
}

.paper-admin-section-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin-block: 1rem;
  padding: 0.45rem;
  border: 1px solid #cfe4e1;
  border-radius: 0.9rem;
  background: #f4faf9;
}

.paper-admin-section-tab {
  min-block-size: 2.8rem;
  border: 1px solid transparent;
  border-radius: 0.7rem;
  background: transparent;
  color: #315b56;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

.paper-admin-section-tab:hover,
.paper-admin-section-tab:focus-visible {
  border-color: #72b9b0;
  outline: none;
}

.paper-admin-section-tab.is-active {
  border-color: #278b80;
  background: #278b80;
  color: #fff;
  box-shadow: 0 0.35rem 0.9rem rgb(39 139 128 / 18%);
}

.paper-admin-section-panel {
  min-inline-size: 0;
  padding-block-start: 0.25rem;
}

.paper-admin-section-panel[hidden],
.paper-list-panel[hidden] {
  display: none !important;
}

@media (max-width: 600px) {
  .paper-admin-section-tabs {
    gap: 0.35rem;
    padding: 0.35rem;
  }

  .paper-admin-section-tab {
    min-block-size: 2.65rem;
    padding-inline: 0.35rem;
    font-size: 0.78rem;
  }
}

/* Global copyright strip shown at the bottom of every route. */
.site-copyright-strip {
  display: flex;
  min-block-size: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  inline-size: 100%;
  padding: 0.65rem clamp(1rem, 4vw, 3rem);
  border-block-start: 3px solid #e7a044;
  background: #32965f;
  color: #082f21;
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.35;
  text-align: center;
}

body[data-shell="app"].admin-module-active .site-copyright-strip {
  inline-size: calc(100% - 16.5rem);
  margin-inline-start: 16.5rem;
}

@media (max-width: 980px) {
  body[data-shell="app"].admin-module-active .site-copyright-strip {
    inline-size: 100%;
    margin-inline-start: 0;
  }
}

@media (max-width: 900px) {
  body:not([data-shell])[data-role="public"] .site-copyright-strip,
  body[data-shell="app"]:not(.admin-module-active) .site-copyright-strip {
    margin-block-end: calc(76px + env(safe-area-inset-bottom, 0px));
  }
}

@media (max-width: 420px) {
  .site-copyright-strip {
    gap: 0.4rem;
    min-block-size: 2.5rem;
    padding: 0.55rem 0.7rem;
    font-size: 0.72rem;
    letter-spacing: 0.035em;
  }
}

/* Signed-in home rail alignment: this final override follows the legacy
   public-home ad rules so the member banner and rail start on the same line. */
.learning-home .home-content-with-ad > .home-ad-right {
  position: sticky;
  inset-block-start: 0;
  top: 0;
  inline-size: 100%;
  min-block-size: 7rem;
  margin-block: 0;
  margin-top: 0;
}

@media (max-width: 860px) {
  .learning-home .home-content-with-ad {
    grid-template-columns: minmax(0, 1fr);
  }

  .learning-home .home-content-with-ad > .home-ad-right {
    position: static;
    min-block-size: 4.75rem;
    margin-block: 0;
  }
}

/* Task111 touch/native fallback: preserve direct table swiping on iPad/mobile. */
.floating-table-scrollbar { -webkit-overflow-scrolling: touch; }

/* Mobile shell cleanup: public-only ad nodes must not sit ahead of signed-in
   content, and admin navigation remains an off-canvas tool on small screens. */
body[data-shell] #public-home-ad-voice,
body[data-shell] #public-home-ad-booking,
body[data-shell] #public-home-ad-right {
  display: none;
}

/* 20260901 UAT: keep one advertising slot and place it after the active page. */
#public-home-ad-voice,
#public-home-ad-booking,
#public-home-ad-right {
  display: none !important;
}

[data-home-ad="page-bottom"] {
  order: 999;
  inline-size: min(100% - 2rem, 1180px);
  margin: 1rem auto max(5rem, env(safe-area-inset-bottom, 0px));
}

.practice-catalog-filter-grid {
  display: grid;
  grid-template-columns: minmax(12rem, 2fr) repeat(2, minmax(10rem, 1fr));
  gap: 0.75rem;
}

.member-course-tabs {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  margin-block: 1rem;
  padding-block-end: 0.25rem;
}

.member-course-tabs .tab {
  flex: 0 0 auto;
}

.member-course-tab-panel {
  min-block-size: 12rem;
}

.course-lesson-notes .list-item p {
  max-inline-size: 72ch;
  line-height: 1.75;
}

#module-activate-form input[name="code"] {
  min-block-size: 3rem;
  font-size: 1rem;
}

@media (max-width: 720px) {
  .practice-catalog-filter-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 980px) {
  body[data-shell="app"].admin-module-active .site-header {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 30;
    inline-size: min(18rem, 82vw);
    block-size: 100dvh;
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateX(-105%);
    transition: none;
  }

  body[data-shell="app"].admin-module-active.shell-menu-open .site-header {
    transform: translateX(0);
  }

  body[data-shell="app"].admin-module-active .shell-menu-button {
    display: inline-grid;
    place-items: center;
  }
}

@media (max-width: 620px) {
  body[data-shell="app"]:not(.admin-module-active) .nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.4rem;
    overflow: visible;
    padding: 0;
  }

  body[data-shell="app"]:not(.admin-module-active) .nav .tab {
    inline-size: 100%;
    min-inline-size: 0;
    white-space: normal;
  }

  body[data-shell] .home-ad-placeholder:not(:has(iframe, ins, [data-ad-filled="true"])) {
    display: none;
  }
}

@media (max-width: 560px) {
  .bottom-nav:not(:has(> a, > button)) {
    display: none !important;
  }

  body:has(#bottom-nav:not(:has(> a, > button))) .whatsapp-floating-contact {
    inset-block-end: max(14px, env(safe-area-inset-bottom, 0px)) !important;
  }

  .bottom-nav:not([hidden]) {
    min-block-size: calc(68px + env(safe-area-inset-bottom, 0px));
    padding-block-start: 9px;
  }

  .bottom-nav > a,
  .bottom-nav > button,
  .bottom-nav .bottom-nav-home {
    grid-template-rows: 1.45rem 1.35rem;
    padding-block: 0.2rem 0.15rem;
  }

  .bottom-nav .bottom-nav-home-disc {
    inline-size: 54px;
    block-size: 54px;
    border-width: 3px;
    transform: translateY(-17px);
  }

  .bottom-nav-label {
    margin-block-start: 0.15rem;
    font-size: 10px;
  }
}

/* 20260831 visual polish: keep the mobile shell legible and give the
   member home a little more hierarchy without changing its data flow. */
@media (max-width: 980px) {
  body[data-shell="app"].admin-module-active.shell-menu-open::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 29;
    background: rgba(5, 31, 45, 0.42);
    -webkit-backdrop-filter: blur(1px);
    backdrop-filter: blur(1px);
    pointer-events: auto;
  }

  body[data-shell="app"].admin-module-active.shell-menu-open .site-header {
    z-index: 30;
    box-shadow: 14px 0 36px rgba(5, 31, 45, 0.2);
  }
}

@media (max-width: 760px) {
  body[data-shell] .home-ad-placeholder:not(:has(iframe, ins, [data-ad-filled="true"])) {
    display: none;
  }
}

@media (max-width: 620px) {
  /* Preserve every member tab as a reachable, single-line item on phones. */
  body[data-shell="app"]:not(.admin-module-active) .nav {
    display: flex;
    grid-template-columns: none;
    flex-wrap: nowrap;
    inline-size: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
  }

  body[data-shell="app"]:not(.admin-module-active) .nav::-webkit-scrollbar {
    display: none;
  }

  body[data-shell="app"]:not(.admin-module-active) .nav .tab {
    inline-size: auto;
    flex: 0 0 auto;
    white-space: nowrap;
  }
}

body[data-shell="app"] .learning-home .learning-section {
  position: relative;
  overflow: hidden;
  border-color: color-mix(in srgb, var(--brand-primary, #063f3c) 16%, var(--line, #d8ebe8));
  box-shadow: 0 10px 28px color-mix(in srgb, var(--brand-primary-strong, #052f2d) 9%, transparent);
}

body[data-shell="app"] .learning-home .learning-section::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  block-size: 3px;
  background: var(--home-section-accent, var(--brand-primary, #063f3c));
  pointer-events: none;
}

body[data-shell="app"] .learning-home [data-home-section="banner"] {
  --home-section-accent: #d96f22;
}

body[data-shell="app"] .learning-home [data-home-section="latest"],
body[data-shell="app"] .learning-home [data-home-section="school-practice"] {
  --home-section-accent: #2f6f6b;
}

body[data-shell="app"] .learning-home [data-home-section="pinyin"],
body[data-shell="app"] .learning-home [data-home-section="games"] {
  --home-section-accent: #1957c8;
}

body[data-shell="app"] .learning-home [data-home-section="voice"] {
  --home-section-accent: #8d4b9b;
}

body[data-shell="app"] .learning-home [data-home-section="social"] {
  --home-section-accent: #3d8b5f;
}

/* Keep the public home modules visually consistent with the UAT reference. */
body[data-shell="app"] .learning-home .public-home-sections > .public-section,
body[data-shell="app"] .learning-home .public-home-sections > .home-ad-placeholder {
  background-color: #fff;
}

body[data-shell="app"] .learning-home .home-social-section {
  border-top: 1px solid color-mix(in srgb, var(--line, #d8ebe8) 75%, transparent);
}

/* Member home uses learning-section nodes directly, rather than the public
   home wrapper. Keep those sections opaque when legacy backgrounds are loaded. */
body[data-shell="app"] .learning-home [data-home-section="school-practice"],
body[data-shell="app"] .learning-home [data-home-section="voice"],
body[data-shell="app"] .learning-home [data-home-section="games"],
body[data-shell="app"] .learning-home [data-home-section="booking"],
body[data-shell="app"] .learning-home [data-home-section="social"],
body[data-shell="app"] .learning-home [data-home-section="sitemap"] {
  background-color: #fff;
}

/* Empty ad placeholders must not reserve mobile space before an ad is filled. */
@media (max-width: 860px) {
  body[data-shell="app"] .learning-home .home-ad-placeholder:not([data-ad-filled="true"]):not(:has(iframe, ins, [data-ad-filled="true"])) {
    display: none;
  }
}

body[data-shell="app"] .learning-home [data-home-section="booking"],
body[data-shell="app"] .learning-home [data-home-section="sitemap"] {
  --home-section-accent: #ef6b4a;
}

body[data-shell="app"] .learning-home .course-cover-placeholder {
  position: relative;
  isolation: isolate;
  background:
    repeating-linear-gradient(135deg, rgba(6, 63, 60, 0.06) 0 1px, transparent 1px 13px),
    linear-gradient(135deg, #e3f4ef, #fff0df);
}

body[data-shell="app"] .learning-home .course-cover-placeholder::after {
  content: "";
  position: absolute;
  inset: 14%;
  z-index: 0;
  border: 1px solid rgba(6, 63, 60, 0.18);
  border-radius: 10px;
  pointer-events: none;
}

body[data-shell="app"] .learning-home .voice-topic-card,
body[data-shell="app"] .learning-home .module-entry-card,
body[data-shell="app"] .learning-home .course-cover-card {
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

body[data-shell="app"] .learning-home :is(.voice-topic-card, .module-entry-card, .course-cover-card):is(:hover, :focus-visible) {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--brand-primary, #063f3c) 42%, var(--line, #d8ebe8));
  box-shadow: 0 14px 28px color-mix(in srgb, var(--brand-primary-strong, #052f2d) 13%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  body[data-shell="app"] .learning-home :is(.voice-topic-card, .module-entry-card, .course-cover-card) {
    transition: none;
  }
}
/* 2026-08-18 member management UAT: clear, responsive submodule tabs. */
.member-admin-inner-tabs {
  display: flex;
  gap: 4px;
  margin: 14px 0 18px;
  padding: 4px;
  overflow-x: auto;
  border: 1px solid var(--border, #d7dee8);
  border-radius: 8px;
  background: #f5f7fa;
}

.member-admin-inner-tabs [role="tab"] {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 8px 14px;
  border: 0;
  border-radius: 6px;
  color: #455468;
  background: transparent;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.member-admin-inner-tabs [role="tab"][aria-selected="true"] {
  color: #123e31;
  background: #fff;
  box-shadow: 0 1px 3px rgba(18, 62, 49, .14);
}

.member-admin-inner-tabs [role="tab"]:focus-visible {
  outline: 3px solid #2f6fed;
  outline-offset: 1px;
}

.member-admin-inner-panel[hidden] { display: none !important; }
.member-admin-inner-panel > .plan-form-section { margin-top: 0; }

.role-relation-workspace-panel,
.role-form-grid > [data-role-relation-manage-panel] {
  min-inline-size: 0;
}

.role-relation-workspace-panel[hidden],
.role-form-grid > [data-role-relation-manage-panel][hidden] {
  display: none !important;
}

.role-relation-workspace-panel .role-form-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
}

@media (max-width: 600px) {
  .member-admin-inner-tabs { scrollbar-width: thin; }
  .member-admin-inner-tabs [role="tab"] { min-height: 44px; padding-inline: 12px; }
  .role-relation-workspace-panel .role-form-grid { grid-template-columns: 1fr; }
}