/*
 * Component: Sidebar
 * Depends on: tokens.css
 */

.sb-section {
  margin-bottom: var(--space-6);
  background: var(--color-bg);
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--sha);
}

.sb-heading {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-dark);
  margin: 0 0 var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid gainsboro;
  display: inline-block;
}

/* Related posts */
.sb-related-item {
  display: flex; gap: var(--space-3);
  align-items: flex-start;
  text-decoration: none; color: inherit;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-light);
  transition: color var(--transition-fast);
}

.sb-related-item:last-of-type { border-bottom: none; }
.sb-related-item:hover { color: var(--color-primary); }

.sb-related-thumb {
  width: 72px; height: 54px; flex-shrink: 0;
  border-radius: var(--radius-sm); overflow: hidden;
}

.sb-related-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

.sb-related-info { flex: 1; min-width: 0; }
.sb-related-date { font-size: var(--font-size-xs); color: var(--color-text-muted); display: block; margin-bottom: 3px; }
.sb-related-title { font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); margin: 0; line-height: var(--line-height-snug); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }

.sb-empty { font-size: var(--font-size-sm); color: var(--color-text-muted); margin: 0; }

/* Tags */
.sb-tag-cloud { display: flex; flex-wrap: wrap; gap: var(--space-1); }

.sb-tag {
  display: inline-block;
  padding: 4px var(--space-3);
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.sb-tag:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* Categories */
.sb-cat-list { list-style: none; padding: 0; margin: 0; }

.sb-cat-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.sb-cat-item:last-child { border-bottom: none; }

.sb-cat-item a {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.sb-cat-item a:hover { color: var(--color-primary); }

.sb-cat-count {
  font-size: var(--font-size-xs);
  background: var(--color-bg-soft);
  color: var(--color-text-muted);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
}