/* ==========================================================================
   Bookshelf Section (Minimalist Literary Catalog)
   ========================================================================== */

.books-section {
  background-color: rgba(22, 25, 34, 0.4);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 3.5rem 0;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

/* Minimalist Literary Card */
.book-card {
  position: relative;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.25rem 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  overflow: hidden;
}

.book-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-md);
  background-color: var(--bg-card-hover);
}

/* Color Accent simulating a minimalist book spine on the left edge */
.book-spine-accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 5px;
  height: 100%;
  transition: width var(--transition-fast);
}

.book-card:hover .book-spine-accent {
  width: 8px;
}

.book-spine-accent.accent-violet { background-color: var(--accent-violet); }
.book-spine-accent.accent-amber  { background-color: var(--accent-amber); }
.book-spine-accent.accent-cyan   { background-color: var(--accent-cyan); }
.book-spine-accent.accent-rose   { background-color: var(--accent-rose); }
.book-spine-accent.accent-indigo { background-color: var(--accent-indigo); }

.book-info {
  margin-bottom: 1.25rem;
}

.book-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.book-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  line-height: 1.25;
}

.book-author {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.65rem;
  font-style: italic;
}

.book-excerpt {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.book-actions {
  padding-top: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.book-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.book-card:hover .book-link {
  color: var(--text-primary);
  transform: translateX(3px);
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
  .book-card:hover {
    transform: none;
  }
  .book-card:hover .book-link {
    transform: none;
  }
}