/* Catalog pages (Lexicosphere / Deweyverse) */

.lexicosphere-hero,
.deweyverse-hero {
  padding-top: 1rem;
  margin-bottom: 1rem;
}

.lexicosphere-hero p,
.deweyverse-hero p {
  max-width: 58rem;
}

.lexicosphere-nav,
.deweyverse-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.lexicosphere-item-links,
.deweyverse-item-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.9rem;
}

.lexicosphere-item-links a,
.deweyverse-item-links a {
  display: inline-block;
  padding: 0.34rem 0.65rem;
  border: 1px solid var(--line-strong, #444);
  border-radius: 999px;
  background: var(--accent-bg, rgba(255, 255, 255, 0.06));
  color: var(--fg-dim, #ccc);
  font-size: 0.82rem;
  line-height: 1.2;
  text-decoration: none;
}

.lexicosphere-item-links a:hover,
.lexicosphere-item-links a:focus-visible,
.deweyverse-item-links a:hover,
.deweyverse-item-links a:focus-visible {
  background: var(--fg-base, #fff);
  border-color: var(--fg-base, #fff);
  color: var(--bg-base, #000);
  outline: none;
  text-shadow: none;
}

.lexicosphere-note,
.deweyverse-note {
  margin-top: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--line, #333);
  border-left: 4px solid var(--fg-base, #fff);
  background: var(--card-soft, #111);
  box-shadow: var(--shadow-sm, none);
}

.lexicosphere-note p:last-child,
.deweyverse-note p:last-child {
  margin-bottom: 0;
}

.view-toggle {
  margin: 1rem 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.view-toggle .label {
  margin: 0;
}

.nav-sidebar-inner {
  padding: 0.5rem 0.75rem 1rem;
}

.nav-filter {
  margin-bottom: 0.75rem;
}

.nav-filter input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.4rem 0.55rem;
  border: 1px solid var(--line, #333);
  border-radius: 0.35rem;
  background: var(--bg-elevated, #1a1a1a);
  color: var(--fg-base, #fff);
}

.nav-group {
  margin-bottom: 0.85rem;
}

.nav-section-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-dim, #aaa);
  margin: 0.5rem 0 0.35rem;
}

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

.nav-item {
  margin: 0;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.4rem;
  border-radius: 0.3rem;
  text-decoration: none;
  color: var(--fg-base, #fff);
}

.nav-link:hover {
  background: var(--bg-elevated, #1a1a1a);
}

.nav-icon {
  width: 1.25rem;
  text-align: center;
  opacity: 0.85;
}

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

.toc-list li {
  margin: 0.25rem 0;
}

.toc-list a {
  text-decoration: none;
  color: var(--fg-dim, #ccc);
  font-size: 0.9rem;
}

.toc-list a:hover {
  color: var(--fg-base, #fff);
}

.toc-h3 {
  padding-left: 0.85rem;
}

.toc-empty {
  font-size: 0.85rem;
  color: var(--fg-dim, #aaa);
}