.page-header {
  text-align: center;
  margin-bottom: 40px;
}
.page-header h1 {
  font-size: 48px;
}
.page-subtitle {
  color: var(--color-faint);
  font-size: 16px;
  margin-top: 6px;
}

.section-subtitle {
  color: var(--color-faint);
  font-size: 14px;
  margin-top: -12px;
  margin-bottom: 20px;
}

.controls {
  margin-bottom: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.search-wrap {
  position: relative;
  flex: 0 0 auto;
}
.search-wrap input {
  width: 180px;
  padding: 5px 12px 5px 28px;
  font-size: 13px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-pill);
  outline: none;
  font-family: inherit;
  transition:
    border-color 0.2s,
    width 0.2s;
  background: var(--color-bg);
}
.search-wrap input:focus {
  border-color: var(--color-faint);
  width: 220px;
}
.search-wrap .search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-faint);
  font-size: 13px;
  pointer-events: none;
}

.divider {
  width: 1px;
  height: 18px;
  background: var(--color-border);
  flex-shrink: 0;
}

.filter-btn {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-muted);
  cursor: pointer;
  font-family: inherit;
  transition:
    border-color 0.15s,
    background 0.15s,
    color 0.15s;
}
.filter-btn:hover {
  border-color: var(--color-faint);
  color: var(--color-ink);
}
.filter-btn.active {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: #fff;
}
.filter-btn[data-filter="active"].active::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ade80;
  margin-right: 5px;
  vertical-align: middle;
  position: relative;
  top: -1px;
}
.filter-btn[data-filter="pinned"].active::before {
  content: "★";
  margin-right: 4px;
  font-size: 10px;
}

.no-results {
  text-align: center;
  color: var(--color-faint);
  font-size: 15px;
  padding: 60px 0;
  display: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card.collapsed-hidden,
.lib-card.collapsed-hidden {
  display: none;
}

.show-more-btn {
  display: none;
  margin: 16px auto 0;
  font-size: 13px;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-muted);
  cursor: pointer;
  font-family: inherit;
  transition:
    border-color 0.15s,
    color 0.15s;
}
.show-more-btn:hover {
  border-color: var(--color-faint);
  color: var(--color-ink);
}

.card {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}
.card:hover .card-body h3 {
  text-decoration: underline;
}

.card-img {
  overflow: hidden;
  aspect-ratio: 4 / 3;
  position: relative;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.card:hover .card-img img {
  transform: scale(1.03);
}

.card-img.contain {
  background: var(--color-bg);
  overflow: visible;
  box-shadow: none;
}
.card-img.contain img {
  object-fit: contain;
  filter: var(--shadow-contain);
}
.card:hover .card-img.contain img {
  transform: none;
}

.badge-active {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--color-ink);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 5px;
}
.badge-active::before {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ade80;
}

.badge-pinned {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--color-ink);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 5px;
}
.badge-pinned::before {
  content: "★";
  font-size: 9px;
  line-height: 1;
}

.card-body {
  padding: 12px 2px 6px;
}
.card-meta {
  font-size: 11px;
  color: var(--color-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.card-body h3 {
  font-size: 19px;
  color: var(--color-ink);
  margin-bottom: 5px;
}
.card-body p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: 8px;
}

.card.hidden {
  display: none;
}

/* ─── Libraries & Contributions ──────────────────────────────────────────── */
.libs-section {
  margin-top: 64px;
}
.libs-section h2 {
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--color-ink);
}

.libs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.lib-card {
  display: flex;
  flex-direction: column;
  padding: 16px 20px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s;
}
.lib-card:hover {
  border-color: var(--color-faint);
  text-decoration: none;
}
.lib-card:hover h3 {
  text-decoration: underline;
}

.lib-card-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}
.lib-card-header h3 {
  font-size: 16px;
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--color-ink);
}

.lib-badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-faint);
  flex-shrink: 0;
}
.lib-badge.contrib-merged {
  color: #16a34a;
}
.lib-badge.contrib-open {
  color: var(--color-accent);
}

.lib-card p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: 10px;
}

.lib-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: auto;
}
.lib-card-footer .tags {
  margin-bottom: 0;
}

.lib-blog-link {
  font-size: 12px;
  color: var(--color-accent);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}
.lib-blog-link:hover {
  text-decoration: underline;
}

.lib-card.hidden {
  display: none;
}

@media (max-width: 800px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 500px) {
  .grid {
    grid-template-columns: 1fr;
  }
  .libs-grid {
    grid-template-columns: 1fr;
  }
}