/* ==========================================================================
   Category Listing - Sidebar Navigation
   ========================================================================== */
:root {
  --cat-primary: #0d6efd;
  --cat-primary-dark: #0d4094;
  --cat-primary-light: #eef4ff;
  --cat-text: #2c3e50;
  --cat-text-secondary: #6b7280;
  --cat-bg: #f8fafc;
  --cat-bg-white: #ffffff;
  --cat-border: #e5e7eb;
  --cat-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --cat-radius: 8px;
}

/* --- Sidebar Card --- */
.cat-sidebar-nav {
  background: var(--cat-bg-white);
  border: 1px solid var(--cat-border);
  border-radius: var(--cat-radius);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.cat-sidebar-parent {
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--cat-border);
}

.cat-sidebar-parent__link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--cat-text-secondary);
  text-decoration: none;
  transition: var(--cat-transition);
}

.cat-sidebar-parent__link:hover {
  color: var(--cat-primary);
}

.cat-sidebar-parent__link svg {
  flex-shrink: 0;
}

.cat-sidebar-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--cat-text);
  margin: 0 0 0.75rem;
  padding: 0;
  line-height: 1.3;
}

.cat-sidebar-siblings-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--cat-text-secondary);
  margin: 1.25rem 0 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--cat-border);
}

.cat-sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.cat-sidebar-list__item {
  margin: 0;
}

.cat-sidebar-list__link {
  display: block;
  padding: 0.4375rem 0.625rem;
  margin: 0 -0.625rem;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--cat-text);
  text-decoration: none;
  border-radius: 6px;
  transition: var(--cat-transition);
  line-height: 1.4;
}

.cat-sidebar-list__link:hover {
  background: var(--cat-primary-light);
  color: var(--cat-primary);
  text-decoration: none;
}

.cat-sidebar-list__link--active {
  background: var(--cat-primary);
  color: #fff;
  font-weight: 600;
}

.cat-sidebar-list__link--active:hover {
  background: var(--cat-primary-dark);
  color: #fff;
}

/* --- Tag pills: 2-line max, expand on toggle --- */
.cat-tags__scroll {
  max-height: 4.5rem; /* ~2 lines of pills */
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.cat-tags--expanded .cat-tags__scroll {
  max-height: 100%;
}

.cat-tags__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 0.5rem;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--cat-primary);
}

.cat-tags__toggle:hover {
  color: var(--cat-primary-dark);
}

.cat-tags__toggle-icon {
  transition: transform 0.3s ease;
}

/* --- SEO Footer --- */
.cat-seo-footer {
  margin-top: 2.5rem;
  padding: 2rem 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--cat-text);
  border-top: 1px solid var(--cat-border);
}

.cat-seo-footer h2 { margin: 1.5rem 0 0.75rem; font-size: 1.25rem; font-weight: 600; }
.cat-seo-footer h2:first-child { margin-top: 0; }
.cat-seo-footer p { margin-bottom: 1rem; }
.cat-seo-footer a { color: var(--cat-primary); text-decoration: underline; }
.cat-seo-footer a:hover { color: var(--cat-primary-dark); }

/* --- Responsive --- */
@media (max-width: 767px) {
  .cat-sidebar-nav { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .cat-sidebar-list__link { transition-duration: 0.01ms !important; }
}