.catalog-controls {
  margin-bottom: 1.5rem;
}

.catalog-search {
  width: 100%;
  padding: 0.375rem 0.75rem;
  margin-bottom: 0.75rem;
  border: 1px solid var(--color-border, #d1d9e0);
  border-radius: 0.375rem;
  background: var(--color-background, #fff);
  color: var(--color-foreground, #1f2328);
  font-size: 0.875rem;
  line-height: 1.5;
}

.catalog-search:focus {
  outline: none;
  border-color: #0969da;
  box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.3);
}

.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.catalog-select {
  padding: 0.3125rem 0.75rem;
  border: 1px solid var(--color-border, #d1d9e0);
  border-radius: 0.375rem;
  background: var(--color-background, #f6f8fa);
  color: var(--color-foreground, #1f2328);
  font-size: 0.75rem;
  font-weight: 500;
}

.catalog-toggle {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  color: var(--color-foreground, #1f2328);
  cursor: pointer;
  font-weight: 500;
}

.catalog-count {
  font-size: 0.75rem;
  color: var(--color-muted-foreground, #656d76);
  margin-bottom: 1rem;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1rem;
}

/* GitHub-style repo card */
.design-card {
  border: 1px solid var(--color-border, #d1d9e0);
  border-radius: 0.375rem;
  padding: 1rem;
  background: var(--color-card, #fff);
  color: var(--color-card-foreground, #1f2328);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}

.card-header h3 {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
}

.card-header h3 a {
  color: #0969da;
  text-decoration: none;
}

.card-header h3 a:hover {
  text-decoration: underline;
}

.card-summary {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-muted-foreground, #656d76);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* GitHub-style topic badges */
.card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-top: 0.25rem;
}

.badge {
  display: inline-block;
  padding: 0 0.625rem;
  border-radius: 2rem;
  font-size: 0.6875rem;
  font-weight: 500;
  line-height: 1.5rem;
  white-space: nowrap;
}

.badge-pdk {
  background: #ddf4ff;
  color: #0969da;
}

.badge-class {
  background: #ddf4ff;
  color: #0969da;
}

.badge-type {
  background: #ddf4ff;
  color: #0969da;
}

.badge-proven {
  background: #dafbe1;
  color: #1a7f37;
  font-size: 0.625rem;
  line-height: 1.375rem;
  flex-shrink: 0;
}

/* GitHub-style spec chips */
.card-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.25rem;
}

.card-spec {
  font-size: 0.6875rem;
  padding: 0.0625rem 0.375rem;
  background: var(--color-muted, #f6f8fa);
  color: var(--color-muted-foreground, #656d76);
  border-radius: 0.375rem;
  border: 1px solid var(--color-border, #d1d9e0);
}

/* GitHub-style footer with language dot + link */
.card-footer {
  margin-top: auto;
  padding-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--color-muted-foreground, #656d76);
}

.card-link {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-muted-foreground, #656d76);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.card-link:hover {
  color: #0969da;
}

.card-link svg {
  width: 1em;
  height: 1em;
  fill: currentColor;
}

@media (max-width: 640px) {
  .catalog-grid {
    grid-template-columns: 1fr;
  }

  .catalog-filters {
    flex-direction: column;
    align-items: stretch;
  }
}