/* Book Card Component
 * ==========================================================================
 * Card display for books with cover images
 */

/* Grid Layout
 * -------------------------------------------------------------------------- */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--size-6);
  margin: var(--size-6) 0;
}

@media (min-width: 768px) {
  .books-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--size-8);
  }
}

@media (min-width: 1200px) {
  .books-grid {
    grid-template-columns: repeat(3, 1fr);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* Book Section
 * -------------------------------------------------------------------------- */
.books-section {
  margin-bottom: var(--size-12);
}

.books-section__title {
  font-size: var(--font-size-x-large);
  font-weight: 700;
  margin-bottom: var(--size-3);
  text-align: center;
  color: var(--color-ink);
}

.books-section__description {
  text-align: center;
  color: var(--color-ink--muted);
  max-width: 600px;
  margin: 0 auto var(--size-6);
  line-height: 1.6;
}

/* Book Card
 * -------------------------------------------------------------------------- */
.book-card__link {
  text-decoration: none;
  display: block;
  transition: transform 0.2s ease;
  color: var(--color-ink);
}

.book-card__link:hover {
  transform: translateY(-4px);
}

.book-card {
  background: var(--color-bg--surface);
  border-radius: var(--radius-medium);
  overflow: hidden;
  box-shadow: 0 2px 8px oklch(from var(--color-shadow) l c h / 0.1);
  transition: box-shadow 0.2s ease;
}

.book-card__link:hover .book-card {
  box-shadow: 0 8px 24px oklch(from var(--color-shadow) l c h / 0.15);
}

/* Book Cover
 * -------------------------------------------------------------------------- */
.book-card__cover {
  position: relative;
  aspect-ratio: 2 / 3;
  background: var(--color-bg--container);
  overflow: hidden;
}

.book-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.book-card__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: var(--size-4);
  color: var(--color-ink--muted);
  background: linear-gradient(
    135deg,
    var(--color-bg--container),
    var(--color-bg--surface-container)
  );
}

.book-card__placeholder-text {
  margin-top: var(--size-2);
  font-size: var(--font-size-x-small);
  text-align: center;
  opacity: 0.7;
}

/* Book Content
 * -------------------------------------------------------------------------- */
.book-card__content {
  padding: var(--size-4);
}

.book-card__title {
  font-size: var(--font-size-small);
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 var(--size-2);
  color: var(--color-ink);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--size-1);
  text-align: center;
}

.book-card__lock-icon {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-ink--muted);
}

.book-card__meta {
  display: flex;
  flex-direction: column;
  gap: var(--size-1);
  font-size: var(--font-size-x-small);
  color: var(--color-ink--muted);
  text-align: center;
}

.book-card__year {
  font-weight: 500;
}

.book-card__series {
  opacity: 0.8;
  font-style: italic;
}

.book-card__excerpt {
  margin: var(--size-2) 0;
  font-size: var(--font-size-x-small);
  line-height: 1.5;
  color: var(--color-ink--muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-card__badge {
  margin-top: var(--size-2);
}

/* Featured Book Card
 * -------------------------------------------------------------------------- */
.book-card--featured {
  grid-column: span 2;
}

.book-card--featured .book-card__cover {
  aspect-ratio: 3 / 2;
}

.book-card--featured .book-card__title {
  font-size: var(--font-size-medium);
}

/* Coming Soon Section
 * -------------------------------------------------------------------------- */
.books-coming-soon {
  text-align: center;
  padding: var(--size-8) var(--size-4);
  background: var(--color-bg--surface-container);
  border-radius: var(--radius-large);
  margin-top: var(--size-8);
}

.books-coming-soon__title {
  font-size: var(--font-size-large);
  font-weight: 600;
  margin-bottom: var(--size-4);
  color: var(--color-ink);
}

.books-coming-soon__text {
  max-width: 600px;
  margin: 0 auto var(--size-6);
  line-height: 1.6;
  color: var(--color-ink--muted);
}

/* Content Header (for books page)
 * -------------------------------------------------------------------------- */
.content-header {
  text-align: center;
  margin-bottom: var(--size-8);
}

.content-header__subtitle {
  font-size: var(--font-size-medium);
  color: var(--color-ink--muted);
  margin-top: var(--size-2);
}

/* Content Empty State
 * -------------------------------------------------------------------------- */
.content-empty {
  text-align: center;
  padding: var(--size-12) var(--size-4);
}

.content-empty__icon {
  margin-bottom: var(--size-4);
  color: var(--color-ink--muted);
  opacity: 0.3;
}

.content-empty__message {
  font-size: var(--font-size-medium);
  color: var(--color-ink--muted);
}

/* Dark Mode Adjustments
 * -------------------------------------------------------------------------- */
[data-color-scheme="dark"] .book-card {
  background: var(--color-bg--surface);
}

[data-color-scheme="dark"] .book-card__placeholder {
  background: linear-gradient(
    135deg,
    var(--color-bg--surface-container),
    var(--color-bg--container)
  );
}

[data-color-scheme="dark"] .books-coming-soon {
  background: var(--color-bg--surface);
}