/* Library Page - Masonry layout inspired by pretext masonry demo */
.library-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.library-header {
  text-align: center;
  margin-bottom: 40px;
}

.library-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.library-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.library-controls {
  max-width: 700px;
  margin: 0 auto;
}

.search-box {
  position: relative;
  margin-bottom: 16px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-family: var(--font-sans);
  background: var(--color-surface);
  transition: all var(--transition-fast);
  outline: none;
}

.search-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.categories-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: none;
  justify-content: center;
  flex-wrap: wrap;
}

.categories-scroll::-webkit-scrollbar {
  display: none;
}

.category-btn {
  padding: 8px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
}

.category-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.category-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

/* Masonry Grid */
.masonry-grid {
  column-count: 3;
  column-gap: 16px;
}

.masonry-card {
  break-inside: avoid;
  margin-bottom: 16px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.masonry-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-link {
  display: block;
  padding: 20px;
}

.card-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-category);
  background: var(--color-category-bg);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 10px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.3;
  color: var(--color-text);
}

.card-description {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.card-tag {
  font-size: 0.75rem;
  padding: 3px 8px;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  border-radius: var(--radius-sm);
}

/* Responsive */
@media (max-width: 900px) {
  .masonry-grid {
    column-count: 2;
  }
}

@media (max-width: 600px) {
  .masonry-grid {
    column-count: 1;
  }

  .library-page {
    padding: 24px 16px 48px;
  }

  .categories-scroll {
    justify-content: flex-start;
  }
}