/* PR-UI08: Admin workspace presentation. Business hooks and data contracts stay unchanged. */
body[data-shell="app"].admin-module-active {
  --ui08-admin-ink: #1f2a2f;
  --ui08-admin-muted: #627078;
  --ui08-admin-line: #d8e0e3;
  --ui08-admin-line-strong: #c3ced3;
  --ui08-admin-canvas: #f4f7f7;
  --ui08-admin-surface: #ffffff;
  --ui08-admin-tint: #eef5f3;
  --ui08-admin-accent: #0d5c54;
  --ui08-admin-accent-strong: #08463f;
  --ui08-admin-coral: #c45448;
  --ui08-admin-warning: #8a641d;
  --ui08-admin-radius: 6px;
}

body[data-shell="app"].admin-module-active #app-view {
  inline-size: 100%;
  max-inline-size: 104rem;
  padding-block-end: 3rem;
}

body[data-shell="app"].admin-module-active .admin-module-page {
  gap: 1.5rem;
}

body[data-shell="app"].admin-module-active .admin-module-page > * {
  min-inline-size: 0;
}

/* Dashboard: a compact operating header followed by one contiguous metric strip. */
body[data-shell="app"].admin-module-active .admin-welcome {
  min-block-size: 8rem;
  align-items: center;
  border: 1px solid #cddbd7;
  border-inline-start: 4px solid var(--ui08-admin-coral);
  border-radius: var(--ui08-admin-radius);
  padding: 1.35rem 1.5rem;
  background: var(--ui08-admin-tint);
  color: var(--ui08-admin-ink);
}

body[data-shell="app"].admin-module-active .admin-welcome h2 {
  max-inline-size: 24ch;
  margin: 0.2rem 0 0.45rem;
  color: var(--ui08-admin-ink);
  font-size: 1.75rem;
  font-weight: 750;
  line-height: 1.25;
  text-wrap: balance;
}

body[data-shell="app"].admin-module-active .admin-welcome p {
  color: var(--ui08-admin-muted);
}

body[data-shell="app"].admin-module-active .admin-welcome .eyebrow {
  color: var(--ui08-admin-accent);
}

body[data-shell="app"].admin-module-active .admin-welcome .row-actions {
  justify-content: flex-end;
}

body[data-shell="app"].admin-module-active .admin-welcome .button {
  border-color: var(--ui08-admin-accent);
  background: var(--ui08-admin-accent);
  color: #ffffff;
}

body[data-shell="app"].admin-module-active .admin-welcome .button.ghost {
  border-color: var(--ui08-admin-line-strong);
  background: var(--ui08-admin-surface);
  color: var(--ui08-admin-accent-strong);
}

body[data-shell="app"].admin-module-active .dashboard-metrics {
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--ui08-admin-line);
  border-radius: var(--ui08-admin-radius);
  background: var(--ui08-admin-line);
}

body[data-shell="app"].admin-module-active .dashboard-metrics button {
  min-block-size: 7.25rem;
  border: 0;
  border-radius: 0;
  padding: 1rem 1.15rem;
  background: var(--ui08-admin-surface);
  transition:
    background-color 140ms ease,
    box-shadow 140ms ease;
}

body[data-shell="app"].admin-module-active
  .dashboard-metrics
  button:is(:hover, :focus-visible) {
  z-index: 1;
  background: #f7fbfa;
  box-shadow: inset 0 -3px 0 var(--ui08-admin-accent);
  transform: none;
}

body[data-shell="app"].admin-module-active .dashboard-metrics strong {
  color: var(--ui08-admin-accent-strong);
  font-size: 1.8rem;
  font-weight: 780;
  line-height: 1.15;
}

body[data-shell="app"].admin-module-active .dashboard-metrics :is(span, small) {
  color: var(--ui08-admin-muted);
}

body[data-shell="app"].admin-module-active .dashboard-columns {
  grid-template-columns: minmax(18rem, 0.9fr) minmax(30rem, 1.35fr);
  gap: 2rem;
}

body[data-shell="app"].admin-module-active .dashboard-section {
  padding-block: 1.2rem 1.5rem;
  border-block-start-color: var(--ui08-admin-line);
}

body[data-shell="app"].admin-module-active .dashboard-section .panel-title-row {
  min-block-size: 3.25rem;
  margin-block-end: 0.75rem;
}

body[data-shell="app"].admin-module-active .dashboard-quick-links {
  gap: 0;
  border-block-start: 1px solid var(--ui08-admin-line);
}

body[data-shell="app"].admin-module-active .dashboard-quick-links button {
  position: relative;
  min-block-size: 5rem;
  border: 0;
  border-block-end: 1px solid var(--ui08-admin-line);
  border-radius: 0;
  padding: 0.85rem 2.5rem 0.85rem 0.9rem;
}

body[data-shell="app"].admin-module-active
  .dashboard-quick-links
  button::after {
  content: "›";
  position: absolute;
  inset-block-start: 50%;
  inset-inline-end: 0.9rem;
  color: #7b8a90;
  font-size: 1.15rem;
  transform: translateY(-50%);
}

body[data-shell="app"].admin-module-active
  .dashboard-quick-links
  button:nth-child(odd) {
  border-inline-end: 1px solid var(--ui08-admin-line);
}

body[data-shell="app"].admin-module-active
  .dashboard-quick-links
  button:is(:hover, :focus-visible) {
  border-color: var(--ui08-admin-line);
  background: var(--ui08-admin-tint);
}

body[data-shell="app"].admin-module-active .dashboard-schedule .empty-state,
body[data-shell="app"].admin-module-active .dashboard-news-list .empty-state {
  min-block-size: 6.5rem;
}

body[data-shell="app"].admin-module-active .dashboard-data-note {
  margin: 0;
  border-block-start: 1px solid var(--ui08-admin-line);
  padding-block-start: 1rem;
}

/* Navigation: preserve tree behavior while improving scan and active-state contrast. */
body[data-shell="app"].admin-module-active .admin-menu-tree {
  display: grid;
  gap: 0.3rem;
}

body[data-shell="app"].admin-module-active .admin-menu-group {
  min-inline-size: 0;
}

body[data-shell="app"].admin-module-active .admin-menu-group-toggle {
  min-block-size: 2.75rem;
  inline-size: 100%;
  padding-inline: 0.75rem;
  text-align: start;
}

body[data-shell="app"].admin-module-active .admin-menu-group.is-open {
  border-inline-start: 2px solid rgba(240, 160, 120, 0.7);
  padding-inline-start: 0.25rem;
}

body[data-shell="app"].admin-module-active .admin-menu-items {
  display: grid;
  gap: 0.1rem;
  padding-block: 0.15rem 0.35rem;
}

body[data-shell="app"].admin-module-active .admin-menu-items[hidden] {
  display: none;
}

body[data-shell="app"].admin-module-active .admin-menu-item {
  min-block-size: 2.5rem;
  padding: 0.55rem 0.75rem;
  overflow-wrap: anywhere;
  line-height: 1.35;
}

body[data-shell="app"].admin-module-active .admin-menu-item.is-active {
  background: rgba(255, 255, 255, 0.13);
  color: #ffffff;
}

/* C01: the course-tree admin route must keep its navigation surface dark even
   while the shell is transitioning between module states.  Scope this to the
   presence of the admin tree so public/member navigation is untouched. */
body[data-shell="app"] .site-header:has(.admin-menu-tree) {
  background: #202b2a !important;
  background-color: #202b2a !important;
  background-image: none !important;
  color: #ffffff;
}

body[data-shell="app"] .site-header:has(.admin-menu-tree) .admin-menu-group-toggle,
body[data-shell="app"] .site-header:has(.admin-menu-tree) .admin-menu-item {
  color: rgba(255, 255, 255, 0.86);
}

body[data-shell="app"] .site-header:has(.admin-menu-tree) .brand strong {
  color: #ffffff;
}

body[data-shell="app"] .site-header:has(.admin-menu-tree) .brand span,
body[data-shell="app"] .site-header:has(.admin-menu-tree) .nav-section-label {
  color: rgba(255, 255, 255, 0.72);
}

body[data-shell="app"] .site-header:has(.admin-menu-tree) .admin-menu-group-toggle:is(:hover, :focus-visible),
body[data-shell="app"] .site-header:has(.admin-menu-tree) .admin-menu-item:is(:hover, :focus-visible),
body[data-shell="app"] .site-header:has(.admin-menu-tree) .admin-menu-item.is-active {
  background: rgba(255, 255, 255, 0.13);
  color: #ffffff;
}

/* Shared workspaces: flatten the outer shell and make filters unmistakably operational. */
body[data-shell="app"].admin-module-active #admin-table.table-wrap {
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
}

body[data-shell="app"].admin-module-active .admin-module-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
  justify-content: flex-end;
  border-block-end: 1px solid var(--ui08-admin-line);
  padding-block-end: 1rem;
}

body[data-shell="app"].admin-module-active .admin-module-toolbar:empty {
  display: none;
}

body[data-shell="app"].admin-module-active
  :is(
    .member-list-filters,
    .question-filter-grid,
    .course-filter-grid,
    .billing-filter-grid,
    [data-project-task-filters] .form-grid
  ) {
  gap: 0.75rem;
  border: 1px solid var(--ui08-admin-line);
  border-radius: var(--ui08-admin-radius);
  padding: 0.9rem;
  background: #f1f5f5;
}

body[data-shell="app"].admin-module-active .field {
  min-inline-size: 0;
}

body[data-shell="app"].admin-module-active .field > span {
  display: block;
  margin-block-end: 0.35rem;
}

body[data-shell="app"].admin-module-active
  :is(input, select, textarea):user-invalid {
  border-color: var(--ui08-admin-coral);
  background: #fff8f7;
}

body[data-shell="app"].admin-module-active
  :is(input, select, textarea)[aria-invalid="true"] {
  border-color: var(--ui08-admin-coral);
  background: #fff8f7;
}

body[data-shell="app"].admin-module-active
  :is(
    .table-wrap,
    .member-list-table,
    .billing-table-wrap,
    .question-table-viewport
  ) {
  border-color: var(--ui08-admin-line);
  scrollbar-color: #9fb3b8 #edf2f3;
}

body[data-shell="app"].admin-module-active
  :is(
    .table-wrap,
    .member-list-table,
    .billing-table-wrap,
    .question-table-viewport
  )
  > table {
  min-inline-size: 48rem;
}

body[data-shell="app"].admin-module-active :is(th, td) {
  vertical-align: top;
}

body[data-shell="app"].admin-module-active th {
  color: #44535a;
  font-size: 0.8125rem;
  text-transform: none;
}

body[data-shell="app"].admin-module-active tbody tr:focus-within td {
  background: var(--ui08-admin-tint);
}

body[data-shell="app"].admin-module-active
  :is(.member-row-actions, .question-row-actions, .pagination-actions) {
  gap: 0.4rem;
}

body[data-shell="app"].admin-module-active .pagination-actions {
  min-block-size: 3.5rem;
  align-items: center;
  justify-content: flex-end;
  border-block-start: 1px solid var(--ui08-admin-line);
  padding-block-start: 0.75rem;
  color: var(--ui08-admin-muted);
  font-variant-numeric: tabular-nums;
}

body[data-shell="app"].admin-module-active .table-scroll-hint {
  display: inline-flex;
  align-items: center;
  min-block-size: 2rem;
  margin: 0;
  color: var(--ui08-admin-muted);
  font-size: 0.9375rem;
}

/* Keep dense row actions touchable without changing their labels or hooks. */
body[data-shell="app"].admin-module-active
  :is(.member-row-actions, .question-row-actions, .pagination-actions)
  :is(.button, .text-button) {
  min-block-size: 44px;
  min-inline-size: 44px;
}

body[data-shell="app"].admin-module-active
  .learning-tree-row
  :is(.icon-button, .learning-node-move-button) {
  min-block-size: 44px;
  min-inline-size: 44px;
}

/* State surfaces are visible without turning them into promotional cards. */
body[data-shell="app"].admin-module-active
  :is(.empty-state, .loading-box, .question-load-error, [data-tone="error"]) {
  border: 1px dashed var(--ui08-admin-line-strong);
  border-radius: var(--ui08-admin-radius);
  padding: 1rem;
  background: #fafcfc;
}

body[data-shell="app"].admin-module-active .loading-box {
  position: relative;
  overflow: hidden;
  color: var(--ui08-admin-muted);
}

body[data-shell="app"].admin-module-active .loading-box::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  block-size: 3px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--ui08-admin-accent) 50%,
    transparent 100%
  );
  animation: ui08-admin-loading 1.2s ease-in-out infinite;
}

body[data-shell="app"].admin-module-active .question-load-error,
body[data-shell="app"].admin-module-active [data-tone="error"] {
  border-color: #dfb3ae;
  background: #fff6f5;
  color: #8a3831;
}

body[data-shell="app"].admin-module-active :is(.button, .text-button):disabled {
  border-color: #d8dee1;
  background: #edf0f2;
  color: #7a858b;
  opacity: 1;
  cursor: not-allowed;
}

/* Dialogs: predictable viewport containment and persistent action context. */
body[data-shell="app"].admin-module-active
  :is(
    .modal-dialog,
    .member-editor-dialog,
    .question-create-dialog,
    .question-report-dialog,
    .paper-builder-dialog,
    .paper-preview-dialog,
    #learning-node-move-dialog,
    .point-reward-type-dialog,
    .member-group-members-dialog,
    .point-earning-task-dialog,
    .member-point-award-dialog
  ) {
  inline-size: min(54rem, calc(100dvw - 2rem));
  max-inline-size: calc(100dvw - 2rem);
  max-block-size: calc(100dvh - 2rem);
  border: 1px solid var(--ui08-admin-line-strong);
  border-radius: var(--ui08-admin-radius);
  padding: 0;
  box-shadow: 0 1rem 2.5rem rgba(27, 42, 46, 0.18);
}

body[data-shell="app"].admin-module-active
  :is(
    .modal-dialog,
    .member-editor-dialog,
    .question-create-dialog,
    .question-report-dialog,
    .paper-builder-dialog,
    .paper-preview-dialog,
    #learning-node-move-dialog,
    .point-reward-type-dialog,
    .member-group-members-dialog,
    .point-earning-task-dialog,
    .member-point-award-dialog
  )::backdrop {
  background: rgba(20, 31, 34, 0.48);
}

body[data-shell="app"].admin-module-active
  :is(.modal-head, .dialog-title-row, .question-report-dialog-head) {
  position: sticky;
  inset-block-start: 0;
  z-index: 2;
  border-block-end: 1px solid var(--ui08-admin-line);
  padding: 1rem 1.1rem;
  background: var(--ui08-admin-surface);
}

body[data-shell="app"].admin-module-active .modal-actions {
  position: sticky;
  inset-block-end: 0;
  z-index: 2;
  border-block-start: 1px solid var(--ui08-admin-line);
  padding: 0.9rem 1.1rem;
  background: var(--ui08-admin-surface);
}

@keyframes ui08-admin-loading {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

@media (max-width: 1180px) {
  body[data-shell="app"].admin-module-active .dashboard-columns {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.5rem;
  }

  body[data-shell="app"].admin-module-active .dashboard-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  body[data-shell="app"].admin-module-active #app-view {
    padding-inline: 1.25rem;
  }

  body[data-shell="app"].admin-module-active .page-head {
    min-block-size: 5.5rem;
  }

  body[data-shell="app"].admin-module-active .site-header {
    max-inline-size: min(20rem, 86dvw);
    box-shadow: 1rem 0 2rem rgba(15, 29, 30, 0.2);
  }

  body[data-shell="app"].admin-module-active .admin-welcome {
    align-items: stretch;
    flex-direction: column;
    gap: 1rem;
  }

  body[data-shell="app"].admin-module-active .admin-welcome .row-actions {
    justify-content: flex-start;
  }

  body[data-shell="app"].admin-module-active
    :is(.question-list-workspace, .practice-structure, .learning-node-layout) {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 700px) {
  body[data-shell="app"].admin-module-active #app-view {
    padding-inline: 0.875rem;
    padding-block-end: calc(6.75rem + env(safe-area-inset-bottom));
  }

  body[data-shell="app"].admin-module-active .admin-module-page {
    gap: 1rem;
  }

  body[data-shell="app"].admin-module-active .admin-welcome {
    min-block-size: 0;
    border-inline-start-width: 3px;
    padding: 1rem;
  }

  body[data-shell="app"].admin-module-active .admin-welcome h2 {
    font-size: 1.4rem;
  }

  body[data-shell="app"].admin-module-active .admin-welcome .row-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    inline-size: 100%;
  }

  body[data-shell="app"].admin-module-active .admin-welcome .button {
    inline-size: 100%;
  }

  body[data-shell="app"].admin-module-active .dashboard-metrics button {
    min-block-size: 6rem;
    padding: 0.8rem;
  }

  body[data-shell="app"].admin-module-active .dashboard-metrics strong {
    font-size: 1.55rem;
  }

  body[data-shell="app"].admin-module-active .dashboard-quick-links {
    grid-template-columns: minmax(0, 1fr);
  }

  body[data-shell="app"].admin-module-active
    .dashboard-quick-links
    button:nth-child(odd) {
    border-inline-end: 0;
  }

  body[data-shell="app"].admin-module-active
    :is(.module-head, .panel-title-row, .question-admin-page-header) {
    gap: 0.75rem;
  }

  body[data-shell="app"].admin-module-active
    :is(.module-head, .panel-title-row, .question-admin-page-header)
    > .row-actions {
    inline-size: 100%;
  }

  body[data-shell="app"].admin-module-active
    :is(
      .member-list-filters,
      .question-filter-grid,
      .course-filter-grid,
      .billing-filter-grid
    ) {
    grid-template-columns: minmax(0, 1fr);
  }

  body[data-shell="app"].admin-module-active .pagination-actions {
    justify-content: space-between;
  }

  body[data-shell="app"].admin-module-active .pagination-actions > span {
    flex: 1 1 100%;
    order: -1;
    text-align: center;
  }

  body[data-shell="app"].admin-module-active .pagination-actions .button {
    flex: 1 1 calc(50% - 0.25rem);
    inline-size: auto;
  }

  body[data-shell="app"].admin-module-active
    :is(
      .modal-dialog,
      .member-editor-dialog,
      .question-create-dialog,
      .question-report-dialog,
      .paper-builder-dialog,
      .paper-preview-dialog,
      #learning-node-move-dialog,
      .point-reward-type-dialog,
      .member-group-members-dialog,
      .point-earning-task-dialog,
      .member-point-award-dialog
    ) {
    inline-size: calc(100dvw - 0.75rem);
    max-inline-size: calc(100dvw - 0.75rem);
    max-block-size: calc(100dvh - 0.75rem);
  }
}

@media (max-width: 420px) {
  body[data-shell="app"].admin-module-active #app-view {
    padding-inline: 0.75rem;
  }

  body[data-shell="app"].admin-module-active .dashboard-metrics button {
    min-block-size: 5.75rem;
  }

  body[data-shell="app"].admin-module-active .dashboard-metrics span,
  body[data-shell="app"].admin-module-active .dashboard-metrics small {
    font-size: 0.75rem;
  }

  body[data-shell="app"].admin-module-active .table-scroll-hint {
    font-size: 0.9375rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  body[data-shell="app"].admin-module-active .loading-box::after {
    animation: none;
  }
}