@layer components {
  /* Flashcard Review
   * Card-based vocabulary review with flip animation.
   */

  .flashcard {
    max-inline-size: 40ch;
    margin-inline: auto;
  }

  .flashcard__progress {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    color: var(--color-ink-muted);
    margin-block-end: var(--block-space);
  }

  .flashcard__inner {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--block-space-l) var(--inline-space-l);
    text-align: center;
    min-block-size: 16rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--block-space);
    transition: transform 400ms ease;
  }

  .flashcard__front,
  .flashcard__back {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--block-space);
  }

  .flashcard__word {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-link);
  }

  .flashcard__translation {
    font-size: 1.5rem;
    font-weight: 600;
  }

  .flashcard__context {
    font-size: 0.9375rem;
    color: var(--color-ink-muted);
    font-style: italic;
    max-inline-size: 35ch;
  }

  .flashcard__actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    margin-block-start: var(--block-space);

    /* Ensure touch-friendly tap targets */
    & .btn {
      min-height: 2.75rem;
      justify-content: center;
    }
  }

  .flashcard--empty {
    text-align: center;
    padding: var(--block-space-l);

    & h2 {
      margin-block-end: var(--block-space-s);
    }

    & p {
      color: var(--color-ink-muted);
      margin-block-end: var(--block-space);
    }
  }

  /* Stats row at top of review page */
  .review-stats {
    font-size: 0.875rem;
    color: var(--color-ink-muted);
    gap: var(--inline-space-l);
  }
}