/* Flashcard-only production hotfix: restore dynamic teaching sizes after UI01. */
body[data-role][data-page-module="onlinePractice"] #module-content .lesson-flashcard-card .lesson-flashcard-hanzi {
  font-size: var(--lesson-flashcard-hanzi-size, clamp(3rem, 10cqi, 7.5rem));
}

body[data-role][data-page-module="onlinePractice"] #module-content .lesson-flashcard-card .lesson-flashcard-pinyin {
  font-size: var(--lesson-flashcard-pinyin-size, clamp(1.6rem, 5cqi, 3.5rem));
}

body[data-role][data-page-module="onlinePractice"] #module-content .lesson-flashcard-card .lesson-flashcard-sandhi-pinyin {
  font-size: calc(var(--lesson-flashcard-pinyin-size, clamp(1.6rem, 5cqi, 3.5rem)) * 0.88) !important;
}

.lesson-flashcard-card {
  min-block-size: clamp(18rem, 46dvh, 32rem);
  padding-inline: clamp(4rem, 9cqi, 6rem);
}

.lesson-flashcard-side-nav {
  position: absolute;
  z-index: 2;
  inset-block-start: 50%;
  display: grid;
  min-inline-size: 44px;
  min-block-size: 44px;
  inline-size: 44px;
  block-size: 44px;
  place-items: center;
  translate: 0 -50%;
  border: 1px solid rgb(255 255 255 / 72%);
  border-radius: 50%;
  padding: 0;
  background: rgb(255 255 255 / 94%);
  color: #14520f;
  box-shadow: 0 5px 16px rgb(6 47 32 / 22%);
  cursor: pointer;
  touch-action: manipulation;
}

.lesson-flashcard-side-nav span {
  font-size: 2rem;
  line-height: 1;
  translate: 0 -0.06em;
}

.lesson-flashcard-side-nav.is-previous {
  inset-inline-start: max(0.65rem, env(safe-area-inset-left));
}

.lesson-flashcard-side-nav.is-next {
  inset-inline-end: max(0.65rem, env(safe-area-inset-right));
}

.lesson-flashcard-side-nav:is(:hover, :focus-visible) {
  background: #fff;
  color: #063f3c;
}

.lesson-flashcard-side-nav:focus-visible {
  outline: 3px solid #ffef96;
  outline-offset: 3px;
}

.lesson-flashcard-side-nav:disabled {
  opacity: 0.42;
  cursor: default;
}

@media (min-width: 1200px) {
  body[data-role][data-page-module="onlinePractice"] #module-content .lesson-flashcard-card .lesson-flashcard-hanzi {
    font-size: min(calc(var(--lesson-flashcard-hanzi-size, 7.5rem) * 1.24), 9.25rem);
  }

  body[data-role][data-page-module="onlinePractice"] #module-content .lesson-flashcard-card .lesson-flashcard-pinyin {
    font-size: min(calc(var(--lesson-flashcard-pinyin-size, 3.5rem) * 1.24), 4.35rem);
  }
}

@media (max-height: 900px) and (min-width: 641px) {
  .lesson-flashcard-player {
    gap: 0.7rem;
    padding-block: 0.8rem;
  }

  .lesson-flashcard-card {
    min-block-size: clamp(16rem, 39dvh, 22rem);
    padding-block: clamp(1.25rem, 4cqi, 3rem);
  }
}

@media (max-width: 640px) {
  .lesson-flashcard-card {
    min-block-size: clamp(17rem, 42dvh, 22rem);
    padding-inline: 3.55rem;
  }

  .lesson-flashcard-side-nav {
    inline-size: 44px;
    block-size: 44px;
  }

  .lesson-flashcard-side-nav.is-previous {
    inset-inline-start: max(0.4rem, env(safe-area-inset-left));
  }

  .lesson-flashcard-side-nav.is-next {
    inset-inline-end: max(0.4rem, env(safe-area-inset-right));
  }
}

@media (forced-colors: active) {
  .lesson-flashcard-side-nav {
    border-color: ButtonText;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lesson-flashcard-side-nav {
    transition: none;
  }
}