@import url("./base.css");
@import url("./components/top-bar.css");
@import url("./components/search.css");
@import url("./components/cards-and-lists.css");


/*  Reference map page */
.reference-map-hero {
  margin-bottom: 1rem;
}
.refmap-toolbar-btn {
  border: 1px solid var(--border-muted);
  border-radius: 999px;
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 0.375rem 0.75rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.refmap-toolbar-btn:hover {
  border-color: var(--border);
  color: var(--text-primary);
  background: var(--bg-elevated);
}
.refmap-empty {
  border: 1px dashed var(--border-muted);
  border-radius: 10px;
  padding: 0.85rem 0.95rem;
  color: var(--text-muted);
  background: var(--bg-surface);
}
.refmap-lang {
  margin: 1rem 0 1.5rem;
}
.refmap-empty-inline {
  margin: 0;
  padding: 0.6rem 0.2rem;
  color: var(--text-muted);
  font-size: 0.88rem;
}
.refmap-lang-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.6rem;
  margin-bottom: 0.55rem;
}
.refmap-lang-head h2 {
  margin: 0;
  font-size: 1.2rem;
}
.refmap-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}
.refmap-card {
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  background: var(--bg-surface);
  overflow: hidden;
  transition: border-color 0.15s;
}
.refmap-card[open] {
  border-color: var(--border);
}
.refmap-card-head {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  justify-content: space-between;
  list-style: none;
  padding: 0.625rem 0.75rem;
  cursor: pointer;
  user-select: none;
  transition: background 0.12s;
}
.refmap-card-head:hover {
  background: rgba(255, 255, 255, 0.02);
}
.refmap-card-head::-webkit-details-marker { display: none; }
.refmap-card-head::after {
  content: "▾";
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-left: auto;
  transition: transform 0.2s;
}
.refmap-card:not([open]) .refmap-card-head::after {
  content: "▸";
}
.refmap-card-head a,
.refmap-card-head span {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}
.refmap-card-head a:hover {
  color: var(--accent-hover);
}
.refmap-links {
  margin: 0;
  padding: 0 0.75rem 0.75rem;
  list-style: none;
  display: grid;
  gap: 0.35rem;
}
.refmap-links li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
}
.refmap-links a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.85rem;
  line-height: 1.35;
  transition: color 0.12s;
}
.refmap-links a:hover {
  color: var(--accent-hover);
}
.min-standard-status[hidden],
[data-min-standard-item][hidden] {
  display: none !important;
}
.min-standard-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.9rem 0 1.15rem;
  padding: 0.58rem 0.72rem;
  border: 1px solid var(--accent-border);
  border-radius: 10px;
  background: var(--accent-dim);
  color: var(--text-secondary);
  font-size: 0.86rem;
}
.min-standard-status-label {
  color: var(--text-muted);
}
.min-standard-status-value {
  color: var(--accent-hover);
  font-family: var(--font-mono);
  font-size: 0.84rem;
}
.min-standard-status-hint {
  color: var(--text-muted);
  font-size: 0.82rem;
}
.min-standard-page-notice {
  margin: 0.85rem 0 1rem;
  padding: 0.72rem 0.82rem;
  border: 1px solid rgba(196, 125, 14, 0.28);
  border-radius: 10px;
  background: rgba(196, 125, 14, 0.12);
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.45;
}
.min-standard-page-notice-label {
  color: var(--text-primary);
  font-weight: 600;
}
.refmap-since {
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--accent-hover);
  border-radius: 999px;
  padding: 0.08rem 0.42rem;
  font-size: 0.68rem;
  font-family: var(--font-mono);
  white-space: nowrap;
}

/* ── Ranges hub  */
.ranges-hub-hero {
  margin-bottom: 1rem;
}
.ranges-hub-intro p:last-child {
  margin-bottom: 0;
}
.ranges-hub-section {
  margin: 1.25rem 0 1.75rem;
}
.ranges-hub-section-head {
  margin-bottom: 0.75rem;
}
.ranges-hub-section-head h2 {
  margin: 0 0 0.25rem;
}
.ranges-hub-section-head p {
  margin: 0;
  color: var(--text-muted);
  max-width: 70ch;
}
.ranges-hub-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}
.ranges-hub-grid-compact {
  grid-template-columns: 1fr;
}
.ranges-task-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}
.ranges-task-group {
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  background: var(--bg-surface);
  padding: 0.75rem;
  transition: border-color 0.15s;
}
.ranges-task-group:hover {
  border-color: var(--border);
}
.ranges-task-group h3 {
  margin: 0 0 0.65rem;
  font-size: 0.95rem;
}
.ranges-hub-card {
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  background: var(--bg-surface);
  padding: 0.875rem 1rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.ranges-hub-card:hover {
  border-color: var(--border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}
.ranges-card-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}
.ranges-card-title {
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.25;
}
.ranges-card-title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.12s;
}
.ranges-card-title a:hover {
  color: var(--accent-hover);
}
.ranges-card-desc {
  margin: 0 0 0.65rem;
  color: var(--text-secondary);
  font-size: 0.86rem;
  line-height: 1.5;
}
.ranges-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.ranges-card-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.82rem;
  transition: color 0.12s;
}
.ranges-card-link:hover {
  color: var(--accent-hover);
}
.ranges-card-since {
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--accent-hover);
  border-radius: 999px;
  padding: 0.08rem 0.42rem;
  font-size: 0.68rem;
  font-family: var(--font-mono);
  white-space: nowrap;
}
.ranges-related {
  margin-top: 0.65rem;
  border-top: 1px solid var(--border-muted);
  padding-top: 0.55rem;
}
.ranges-related summary {
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: color 0.12s;
}
.ranges-related summary:hover {
  color: var(--text-secondary);
}
.ranges-related-list {
  margin: 0.45rem 0 0;
  padding-left: 1rem;
}
.ranges-related-list li {
  margin: 0.18rem 0;
}
.ranges-related-list a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.82rem;
  transition: color 0.12s;
}
.ranges-related-list a:hover {
  color: var(--accent-hover);
}
.ranges-index-section {
  border-top: 1px solid var(--border-muted);
  padding-top: 1rem;
}
.ranges-index-details {
  border: 1px solid var(--border-muted);
  border-radius: 14px;
  background: var(--bg-surface);
  overflow: hidden;
}
.ranges-index-summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  padding: 1rem 1.05rem;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.ranges-index-summary::-webkit-details-marker {
  display: none;
}
.ranges-index-summary::marker {
  content: "";
}
.ranges-index-summary:hover {
  background: var(--bg-elevated);
}
.ranges-index-summary-text {
  min-width: 0;
}
.ranges-index-summary-text h2 {
  margin: 0;
  font-size: 1.02rem;
}
.ranges-index-summary-text p {
  margin: 0.38rem 0 0;
  color: var(--text-secondary);
}
.ranges-index-summary-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  white-space: nowrap;
}
.ranges-index-summary-meta::before {
  content: "▸";
  font-size: 0.9rem;
  transition: transform 0.15s ease;
}
.ranges-index-details[open] .ranges-index-summary-meta::before {
  transform: rotate(90deg);
}
.ranges-index-details[open] .ranges-index-columns {
  padding: 0 1.05rem 1.05rem;
}
.ranges-index-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}
.ranges-index-group {
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  background: var(--bg-surface);
  padding: 0.75rem 0.875rem;
}
.ranges-index-group-wide {
  grid-column: 1 / -1;
}
.ranges-index-group h3 {
  margin: 0 0 0.6rem;
  font-size: 0.92rem;
}
.ranges-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.ranges-index-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.25rem 0;
  border-bottom: 1px solid var(--border-muted);
}
.ranges-index-item:last-child {
  border-bottom: none;
}
.ranges-index-name {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.87rem;
  font-family: var(--font-mono);
  transition: color 0.12s;
}
.ranges-index-name:hover {
  color: var(--accent-hover);
}
.ranges-index-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.ranges-index-since {
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 0.06rem 0.38rem;
  font-size: 0.66rem;
  font-family: var(--font-mono);
  white-space: nowrap;
}
.ranges-index-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.76rem;
  white-space: nowrap;
  transition: color 0.12s;
}
.ranges-index-link:hover {
  color: var(--accent-hover);
}

/* ── Algorithm hub ─────────────────────────────────────────────────────── */
.algorithm-hub-hero {
  margin-bottom: 1rem;
}
.algorithm-hub-intro p:last-child {
  margin-bottom: 0;
}
.algorithm-hub-section {
  margin: 1.25rem 0 1.75rem;
}
.algorithm-hub-section-head {
  margin-bottom: 0.75rem;
}
.algorithm-hub-section-head h2 {
  margin: 0 0 0.25rem;
}
.algorithm-hub-section-head p {
  margin: 0;
  color: var(--text-muted);
  max-width: 74ch;
}
.algorithm-core-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}
.algorithm-hub-card {
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  background: var(--bg-surface);
  padding: 0.875rem 1rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.algorithm-hub-card:hover {
  border-color: var(--border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}
.algorithm-hub-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}
.algorithm-hub-card-title {
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.25;
}
.algorithm-hub-card-title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.12s;
}
.algorithm-hub-card-title a:hover {
  color: var(--accent-hover);
}
.algorithm-hub-card-desc {
  margin: 0 0 0.65rem;
  color: var(--text-secondary);
  font-size: 0.86rem;
  line-height: 1.5;
}
.algorithm-hub-badges {
  display: inline-flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.algorithm-hub-badge {
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 0.08rem 0.42rem;
  font-size: 0.68rem;
  font-family: var(--font-mono);
  white-space: nowrap;
}
.algorithm-hub-badge-ranges {
  color: #93c5fd;
}
.algorithm-hub-badge-policy {
  color: #f9a8d4;
}
.algorithm-hub-badge-since {
  color: var(--accent-hover);
}
.algorithm-hub-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.82rem;
  transition: color 0.12s;
}
.algorithm-hub-link:hover {
  color: var(--accent-hover);
}
.algorithm-index-panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  align-items: start;
}
.algorithm-index-column {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}
.algorithm-index-panel {
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  background: var(--bg-surface);
  overflow: hidden;
  transition: border-color 0.15s;
}
.algorithm-index-panel:hover {
  border-color: var(--border);
}
.algorithm-index-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.55rem;
  padding: 0.625rem 0.875rem;
  border-bottom: 1px solid var(--border-muted);
  background: rgba(255, 255, 255, 0.02);
}
.algorithm-index-panel-head h3 {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.2;
}
.algorithm-index-panel-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.algorithm-index-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.65rem;
  padding: 0.08rem 0.4rem;
  border-radius: 999px;
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-size: 0.68rem;
  font-family: var(--font-mono);
}
.algorithm-index-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.8rem;
  padding: 0.08rem 0.42rem;
  border-radius: 999px;
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 0.67rem;
  font-family: var(--font-mono);
  white-space: nowrap;
  cursor: pointer;
  transition: border-color 0.12s, color 0.12s;
}
.algorithm-index-toggle:hover {
  border-color: var(--border);
  color: var(--text-primary);
}
.algorithm-index-panel[data-expanded="false"] .algorithm-index-panel-head {
  border-bottom-color: transparent;
}
.algorithm-index-panel[data-expanded="false"] .algorithm-index-toggle {
  color: var(--text-muted);
}
.algorithm-index-panel[data-expanded="true"] .algorithm-index-toggle {
  color: var(--accent-hover);
  border-color: var(--accent-border);
}
.algorithm-index-panel[data-expanded="false"] .algorithm-task-list {
  display: none;
}
.algorithm-task-list {
  list-style: none;
  margin: 0;
  padding: 0.25rem 0.875rem 0.625rem;
  display: grid;
  gap: 0;
}
.algorithm-task-item {
  display: block;
  padding: 0.375rem 0;
  border-bottom: 1px solid var(--border-muted);
}
.algorithm-task-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}
.algorithm-task-main {
  min-width: 0;
}
.algorithm-task-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.38rem;
  margin-bottom: 0.08rem;
}
.algorithm-task-titleline {
  display: flex;
  align-items: baseline;
  gap: 0.42rem;
  min-width: 0;
  flex-wrap: wrap;
}
.algorithm-task-name {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  line-height: 1.3;
  transition: color 0.12s;
}
.algorithm-task-name:hover {
  color: var(--accent-hover);
}
.algorithm-task-badges {
  justify-content: flex-start;
  gap: 0.28rem;
  row-gap: 0.18rem;
}
.algorithm-task-badges .algorithm-hub-badge {
  padding: 0.05rem 0.34rem;
  font-size: 0.62rem;
}
.algorithm-task-desc {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.75rem;
  line-height: 1.3;
  max-width: 58ch;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Section landing (top-level under /cpp/) ─────────────────────────── */
.section-hero {
  border: 1px solid var(--border-muted);
  border-radius: 12px;
  padding: 1.25rem 1.25rem;
  background:
    radial-gradient(ellipse 60% 80% at 0% 50%, rgba(129, 140, 248, 0.08), transparent),
    var(--bg-surface);
  margin-bottom: 1.25rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.section-kicker {
  margin: 0 0 0.5rem;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 600;
}
.section-meta {
  display: flex;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0.75rem 0 1rem;
  flex-wrap: wrap;
}
.meta-chip {
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}
.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.quick-link {
  text-decoration: none;
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--accent-hover);
  font-size: 0.88rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.quick-link:hover {
  border-color: var(--accent-border);
  color: var(--text-primary);
  background: var(--accent-dim);
}

/* ── Header controls / settings ───────────────────────────────────────── */
.header-control { margin-left: auto; position: relative; }
.theme-toggle {
  border: 1px solid var(--border-muted);
  background: var(--bg-surface);
  color: var(--text-secondary);
  border-radius: 999px;
  width: 2rem;
  height: 2rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.theme-toggle:hover {
  border-color: var(--border);
  color: var(--text-primary);
  background: var(--bg-elevated);
}
.settings-menu {
  position: absolute;
  right: 0;
  top: 2.5rem;
  min-width: 19rem;
  border: 1px solid var(--border-muted);
  background: var(--bg-surface);
  border-radius: 12px;
  padding: 0.75rem;
  z-index: 50;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.settings-group + .settings-group {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-muted);
}
.settings-title {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.settings-help {
  margin: 0.4rem 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.segmented { display: flex; gap: 0.35rem; flex-wrap: wrap; }
.segmented button {
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.82rem;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.segmented button:hover {
  border-color: var(--border);
  color: var(--text-primary);
}
.segmented button.is-active {
  border-color: var(--accent-border);
  color: var(--accent-hover);
  background: var(--accent-dim);
}
.pinned-list { display: flex; flex-direction: column; gap: 0.35rem; }
.pinned-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.87rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.12s;
}
.pinned-link:hover {
  color: var(--accent-hover);
}
.pinned-more {
  border: 0;
  background: transparent;
  color: var(--accent);
  text-align: left;
  padding: 0;
  cursor: pointer;
  font-size: 0.84rem;
  transition: color 0.12s;
}
.pinned-more:hover {
  color: var(--accent-hover);
}

/* ── Single page pin control ──────────────────────────────────────────── */
.page-heading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}
.page-heading h1 { margin: 0; }
.page-heading .instantiated-member-header {
  min-width: 0;
  flex: 1 1 auto;
}
.instantiated-member-kicker {
  margin: 0 0 0.28rem;
  color: var(--text-muted);
  font-size: 0.74rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.instantiated-member-template {
  margin: 0.4rem 0 0;
  color: var(--text-secondary);
}
.instantiated-member-specializations {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.instantiated-member-label {
  color: var(--text-muted);
  font-size: 0.82rem;
}
.instantiated-member-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.instantiated-member-chip-list li {
  margin: 0;
}
.instantiated-member-chip-list code {
  display: inline;
  padding: 0.02rem 0.18rem;
  border: 1px solid var(--border-muted);
  border-radius: 999px;
  background: transparent;
  color: var(--text-secondary);
  white-space: nowrap;
}
.instantiated-member-chip-list code.is-active {
  border-color: var(--accent-border);
  color: var(--accent-hover);
}
.overview-page {
  max-width: 100%;
}
.overview-lead {
  margin: 0 0 1.25rem;
  color: var(--text-secondary);
  max-width: 68ch;
  font-size: 1rem;
  line-height: 1.7;
}
.page-local-toc {
  margin: 0 0 1.5rem;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  background: var(--bg-surface);
}
.page-local-toc-title {
  margin: 0 0 0.5rem;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.page-local-toc #TableOfContents ul {
  margin: 0;
  padding-left: 1.15rem;
}
.page-local-toc #TableOfContents li {
  margin: 0.25rem 0;
  color: var(--text-muted);
}
.page-local-toc #TableOfContents a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.12s;
}
.page-local-toc #TableOfContents a:hover {
  color: var(--accent-hover);
}
.overview-minor-heading {
  margin: 1.25rem 0 0.7rem;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.overview-link-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0 0 1.5rem;
}
.overview-link-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.38rem 0.68rem;
  border: 1px solid var(--border-muted);
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 0.83rem;
  line-height: 1.2;
  text-decoration: none;
  transition: border-color 0.12s, color 0.12s, background 0.12s;
}
.overview-link-chip:hover {
  border-color: var(--accent-border);
  color: var(--accent-hover);
  background: var(--accent-dim);
}
.overview-page-container .page-local-toc {
  padding: 0.72rem 0.9rem;
}
.overview-page-container .page-local-toc-title {
  margin-bottom: 0.35rem;
  font-size: 0.66rem;
}
.overview-page-container .page-local-toc #TableOfContents > ul {
  columns: 2;
  column-gap: 1.5rem;
  padding-left: 1rem;
}
.overview-page-container .page-local-toc #TableOfContents li {
  break-inside: avoid;
  margin: 0.14rem 0;
}
.overview-page-container .page-local-toc #TableOfContents a {
  font-size: 0.9rem;
}
.overview-content > h2,
.overview-content > h3 {
  scroll-margin-top: 4.8rem;
}
.overview-note {
  margin: 1rem 0 1.25rem;
  padding: 0.875rem 1rem;
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  background: var(--accent-dim);
  color: var(--text-secondary);
}
.overview-table {
  margin: 1rem 0 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  background: var(--bg-surface);
}
.overview-table table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
}
.overview-table th,
.overview-table td {
  padding: 0.7rem 0.875rem;
  vertical-align: top;
  border-bottom: 1px solid var(--border-muted);
}
.overview-table tr:last-child td {
  border-bottom: 0;
}
.overview-table th {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
  text-align: left;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  font-weight: 600;
}
.overview-table td {
  color: var(--text-secondary);
  font-size: 0.92rem;
}
.overview-table code {
  white-space: nowrap;
}
.overview-table ul {
  margin: 0;
  padding-left: 1rem;
}
.overview-table p:first-child,
.overview-table ul:first-child {
  margin-top: 0;
}
.overview-table p:last-child,
.overview-table ul:last-child {
  margin-bottom: 0;
}
.overview-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.14rem 0.46rem;
  border: 1px solid var(--border-muted);
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  white-space: nowrap;
}
.pin-toggle {
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 0.2rem 0.625rem;
  font-size: 0.81rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.pin-toggle:hover {
  border-color: var(--border);
  color: var(--text-primary);
}
.pin-toggle[aria-pressed="true"] {
  border-color: var(--accent-border);
  color: var(--accent-hover);
  background: var(--accent-dim);
}

/* ── Modals ───────────────────────────────────────────────────────────── */
.shortcuts-modal {
  border: 1px solid var(--border-muted);
  background: var(--bg-surface);
  color: var(--text-primary);
  border-radius: 12px;
  padding: 1.25rem;
  width: min(34rem, 92vw);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.8);
}
.shortcuts-modal::backdrop { background: rgba(0, 0, 0, 0.65); }
.shortcuts-modal h3 { margin-top: 0; }
.shortcuts-modal ul { margin: 0.6rem 0 0.9rem; padding-left: 1.1rem; }
.spotlight-modal {
  width: min(42rem, 94vw);
}
.spotlight-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.8rem;
}
.spotlight-head h3 {
  margin: 0;
}
.spotlight-input {
  width: 100%;
  border: 1px solid var(--border-muted);
  background: var(--bg-subtle);
  color: var(--text-primary);
  border-radius: 10px;
  padding: 0.72rem 0.85rem;
  font: inherit;
}
.spotlight-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}
.spotlight-help {
  margin: 0.65rem 0 0.8rem;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.spotlight-results {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
  max-height: min(24rem, 55vh);
  overflow: auto;
}
.spotlight-item,
.spotlight-empty {
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  padding: 0.72rem 0.82rem;
  background: var(--bg-elevated);
}
.spotlight-item {
  cursor: pointer;
  display: grid;
  gap: 0.18rem;
}
.spotlight-item.is-active,
.spotlight-item:hover {
  border-color: var(--accent-border);
  background: var(--accent-dim);
}
.spotlight-title {
  color: var(--text-primary);
}
.spotlight-url {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-family: var(--font-mono);
}
.shortcuts-close {
  border: 1px solid var(--border-muted);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.shortcuts-close:hover {
  border-color: var(--border);
  color: var(--text-primary);
}

/* ── Theme modes (auto/dark/light)  */

/*
 * Light theme design tokens
 * ─────────────────────────
 * bg-page      : #f7f8fa   (off-white, neutral)
 * bg-surface   : #ffffff   (cards, panels, modals)
 * bg-subtle    : #f1f3f7   (inset areas, inputs)
 * bg-control   : #eef0f5   (buttons, chips, badges)
 * border       : #dde1ea   (default borders)
 * border-strong: #c9cfd9   (emphasized borders, focus ring base)
 * text-primary : #111827   (headings, body)
 * text-secondary: #4b5563  (descriptions, secondary labels)
 * text-muted   : #6b7280   (placeholders, timestamps, meta)
 * accent       : #2563eb   (links, focus, active state)
 * accent-soft  : #eff4ff   (tinted bg for accent elements)
 * accent-border: #bfcfef   (borders of accent-soft elements)
 * badge-ns     : #be185d   (namespace badge)
 * badge-op     : #1d4ed8   (operator badge)
 * badge-name   : #047857   (name badge)
 */

html[data-theme="light"] {
  --bg-base:       #f7f8fa;
  --bg-surface:    #ffffff;
  --bg-elevated:   #eef0f5;
  --border:        #dde1ea;
  --border-muted:  #e5e7eb;
  --text-primary:  #111827;
  --text-secondary: #4b5563;
  --text-muted:    #6b7280;
  --accent:        #2563eb;
  --accent-hover:  #1d4ed8;
  --accent-dim:    rgba(37, 99, 235, 0.08);
  --accent-border: rgba(37, 99, 235, 0.3);
  --badge-ns:      #be185d;
  --badge-op:      #1d4ed8;
  --badge-name:    #047857;
}
html[data-theme="light"] body {
  background: #f7f8fa;
  color: #111827;
}

/* Brand badge */
html[data-theme="light"] .brand-badge {
  background: #f1f3f7;
  color: #111827;
  border-color: #dde1ea;
}

/* Typography */
html[data-theme="light"] .heading-anchor {
  color: #9ca3af;
}
html[data-theme="light"] .heading:hover .heading-anchor {
  color: #2563eb;
}

/* Breadcrumb */
html[data-theme="light"] .breadcrumb {
  color: #6b7280;
}
html[data-theme="light"] .breadcrumb a {
  color: #6b7280;
}
html[data-theme="light"] .breadcrumb a:hover {
  color: #2563eb;
}

/* Code */
html[data-theme="light"] code {
  background: #eef0f7;
  color: #1e293b;
  box-shadow: inset 0 0 0 1px #dde1ea;
}
html[data-theme="light"] pre {
  background: #2b2f3d;
  color: #cdd0da;
  box-shadow: inset 0 0 0 1px #3d4155;
}
html[data-theme="light"] pre code {
  background: transparent;
  color: inherit;
  box-shadow: none;
  border: none;
}

html[data-theme="light"] .hero-search {
  background: rgba(255, 255, 255, 0.7);
  border-color: #dde1ea;
}
html[data-theme="light"] .hero-search-label {
  color: #6b7280;
}

/* Home blocks */
html[data-theme="light"] .home-divider {
  background: linear-gradient(90deg, transparent 0%, rgba(37, 99, 235, 0.2) 18%, rgba(37, 99, 235, 0.2) 82%, transparent 100%);
}

/* Domain diagram */
html[data-theme="light"] .domain-diagram-frame {
  background: #f1f3f7;
  border-color: #dde1ea;
}
html[data-theme="light"] .domain-diagram-caption {
  color: #6b7280;
}

/* Section hero */
html[data-theme="light"] .section-hero {
  background:
    radial-gradient(600px 160px at 5% -30%, rgba(219, 234, 254, 0.6), transparent 60%),
    linear-gradient(140deg, #f0f4ff 0%, #f7f8fa 55%, #eef3fb 100%);
  border-color: #dde1ea;
}
html[data-theme="light"] .section-kicker {
  color: #2563eb;
}
html[data-theme="light"] .section-meta {
  color: #6b7280;
}
html[data-theme="light"] .meta-chip {
  background: #f1f3f7;
  border-color: #dde1ea;
  color: #374151;
}
html[data-theme="light"] .quick-link {
  background: #f1f3f7;
  border-color: #dde1ea;
  color: #374151;
}
html[data-theme="light"] .quick-link:hover {
  background: #eff4ff;
  border-color: #bfcfef;
  color: #2563eb;
}

/* Settings / theme controls */
html[data-theme="light"] .theme-toggle {
  background: #f1f3f7;
  color: #374151;
  border-color: #dde1ea;
}
html[data-theme="light"] .theme-toggle:hover {
  border-color: #c9cfd9;
  background: #e5e8f0;
}
html[data-theme="light"] .settings-menu {
  background: #ffffff;
  border-color: #dde1ea;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}
html[data-theme="light"] .settings-group + .settings-group {
  border-top-color: #e5e7eb;
}
html[data-theme="light"] .settings-title {
  color: #6b7280;
}
html[data-theme="light"] .settings-help {
  color: #6b7280;
}
html[data-theme="light"] .segmented button {
  background: #f1f3f7;
  color: #374151;
  border-color: #dde1ea;
}
html[data-theme="light"] .segmented button:hover {
  background: #e5e8f0;
  border-color: #c9cfd9;
}
html[data-theme="light"] .segmented button.is-active {
  background: #eff4ff;
  border-color: #2563eb;
  color: #1d4ed8;
}
html[data-theme="light"] .pinned-link {
  color: #374151;
}
html[data-theme="light"] .pinned-link:hover {
  color: #2563eb;
}
html[data-theme="light"] .pinned-more {
  color: #2563eb;
}

/* Pin toggle */
html[data-theme="light"] .pin-toggle {
  background: #f1f3f7;
  color: #374151;
  border-color: #dde1ea;
}
html[data-theme="light"] .pin-toggle[aria-pressed="true"] {
  background: #eff4ff;
  border-color: #2563eb;
  color: #1d4ed8;
}

/* Shortcuts modal */
html[data-theme="light"] .shortcuts-modal {
  background: #ffffff;
  border-color: #dde1ea;
  color: #111827;
}
html[data-theme="light"] .shortcuts-modal::backdrop {
  background: rgba(0, 0, 0, 0.3);
}
html[data-theme="light"] .spotlight-input {
  background: #f8fafc;
  border-color: #dde1ea;
}
html[data-theme="light"] .spotlight-item,
html[data-theme="light"] .spotlight-empty {
  background: #f8fafc;
  border-color: #dde1ea;
}
html[data-theme="light"] .spotlight-item.is-active,
html[data-theme="light"] .spotlight-item:hover {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.24);
}
html[data-theme="light"] .shortcuts-close {
  background: #f1f3f7;
  color: #374151;
  border-color: #dde1ea;
}
html[data-theme="light"] .shortcuts-close:hover {
  background: #e5e8f0;
  border-color: #c9cfd9;
}

/* Single page: TOC, tables, overview */
html[data-theme="light"] .overview-lead {
  color: #4b5563;
}
html[data-theme="light"] .page-local-toc {
  background: #ffffff;
  border-color: #dde1ea;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}
html[data-theme="light"] .page-local-toc-title {
  color: #2563eb;
}
html[data-theme="light"] .page-local-toc #TableOfContents li {
  color: #4b5563;
}
html[data-theme="light"] .page-local-toc #TableOfContents a {
  color: #2563eb;
}
html[data-theme="light"] .page-local-toc #TableOfContents a:hover {
  color: #1d4ed8;
}
html[data-theme="light"] .overview-note {
  background: #eff4ff;
  border-left-color: #2563eb;
  color: #1e3a8a;
}
html[data-theme="light"] .overview-table {
  background: #ffffff;
  border-color: #dde1ea;
  box-shadow: none;
}
html[data-theme="light"] .overview-table th {
  background: #f7f8fa;
  color: #111827;
  border-bottom-color: #dde1ea;
}
html[data-theme="light"] .overview-table td {
  color: #374151;
  border-bottom-color: #e5e7eb;
}
html[data-theme="light"] .overview-chip {
  background: #eff4ff;
  border-color: #bfcfef;
  color: #1d4ed8;
}

/* Build info / footer */
html[data-theme="light"] footer {
  border-top-color: #e5e7eb;
}
html[data-theme="light"] .build-info {
  color: #9ca3af;
}

@media (prefers-color-scheme: light) {
  html[data-theme="auto"] {
    --bg-base:       #f7f8fa;
    --bg-surface:    #ffffff;
    --bg-elevated:   #eef0f5;
    --border:        #dde1ea;
    --border-muted:  #e5e7eb;
    --text-primary:  #111827;
    --text-secondary: #4b5563;
    --text-muted:    #6b7280;
    --accent:        #2563eb;
    --accent-hover:  #1d4ed8;
    --accent-dim:    rgba(37, 99, 235, 0.08);
    --accent-border: rgba(37, 99, 235, 0.3);
    --badge-ns:      #be185d;
    --badge-op:      #1d4ed8;
    --badge-name:    #047857;
  }
  html[data-theme="auto"] body {
    background: #f7f8fa;
    color: #111827;
  }

  /* Brand badge */
  html[data-theme="auto"] .brand-badge {
    background: #f1f3f7;
    color: #111827;
    border-color: #dde1ea;
  }

  /* Typography */
  html[data-theme="auto"] .heading-anchor {
    color: #9ca3af;
  }
  html[data-theme="auto"] .heading:hover .heading-anchor {
    color: #2563eb;
  }

  /* Breadcrumb */
  html[data-theme="auto"] .breadcrumb {
    color: #6b7280;
  }
  html[data-theme="auto"] .breadcrumb a {
    color: #6b7280;
  }
  html[data-theme="auto"] .breadcrumb a:hover {
    color: #2563eb;
  }

  /* Code */
  html[data-theme="auto"] code {
    background: #eef0f7;
    color: #1e293b;
    box-shadow: inset 0 0 0 1px #dde1ea;
  }
  html[data-theme="auto"] pre {
    background: #2b2f3d;
    color: #cdd0da;
    box-shadow: inset 0 0 0 1px #3d4155;
  }
  html[data-theme="auto"] pre code {
    background: transparent;
    color: inherit;
    box-shadow: none;
    border: none;
  }

  html[data-theme="auto"] .hero-search {
    background: rgba(255, 255, 255, 0.7);
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .hero-search-label {
    color: #6b7280;
  }

  /* Home blocks */
  html[data-theme="auto"] .home-divider {
    background: linear-gradient(90deg, transparent 0%, rgba(37, 99, 235, 0.2) 18%, rgba(37, 99, 235, 0.2) 82%, transparent 100%);
  }
  /* Domain diagram */
  html[data-theme="auto"] .domain-diagram-frame {
    background: #f1f3f7;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .domain-diagram-caption {
    color: #6b7280;
  }

  /* Section hero */
  html[data-theme="auto"] .section-hero {
    background:
      radial-gradient(600px 160px at 5% -30%, rgba(219, 234, 254, 0.6), transparent 60%),
      linear-gradient(140deg, #f0f4ff 0%, #f7f8fa 55%, #eef3fb 100%);
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .section-kicker {
    color: #2563eb;
  }
  html[data-theme="auto"] .section-meta {
    color: #6b7280;
  }
  html[data-theme="auto"] .meta-chip {
    background: #f1f3f7;
    border-color: #dde1ea;
    color: #374151;
  }
  html[data-theme="auto"] .quick-link {
    background: #f1f3f7;
    border-color: #dde1ea;
    color: #374151;
  }
  html[data-theme="auto"] .quick-link:hover {
    background: #eff4ff;
    border-color: #bfcfef;
    color: #2563eb;
  }

  /* Settings / theme controls */
  html[data-theme="auto"] .theme-toggle {
    background: #f1f3f7;
    color: #374151;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .theme-toggle:hover {
    border-color: #c9cfd9;
    background: #e5e8f0;
  }
  html[data-theme="auto"] .settings-menu {
    background: #ffffff;
    border-color: #dde1ea;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  }
  html[data-theme="auto"] .settings-group + .settings-group {
    border-top-color: #e5e7eb;
  }
  html[data-theme="auto"] .settings-title {
    color: #6b7280;
  }
  html[data-theme="auto"] .settings-help {
    color: #6b7280;
  }
  html[data-theme="auto"] .segmented button {
    background: #f1f3f7;
    color: #374151;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .segmented button:hover {
    background: #e5e8f0;
    border-color: #c9cfd9;
  }
  html[data-theme="auto"] .segmented button.is-active {
    background: #eff4ff;
    border-color: #2563eb;
    color: #1d4ed8;
  }
  html[data-theme="auto"] .pinned-link {
    color: #374151;
  }
  html[data-theme="auto"] .pinned-link:hover {
    color: #2563eb;
  }
  html[data-theme="auto"] .pinned-more {
    color: #2563eb;
  }

  /* Pin toggle */
  html[data-theme="auto"] .pin-toggle {
    background: #f1f3f7;
    color: #374151;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .pin-toggle[aria-pressed="true"] {
    background: #eff4ff;
    border-color: #2563eb;
    color: #1d4ed8;
  }

  /* Shortcuts modal */
  html[data-theme="auto"] .shortcuts-modal {
    background: #ffffff;
    border-color: #dde1ea;
    color: #111827;
  }
  html[data-theme="auto"] .shortcuts-modal::backdrop {
    background: rgba(0, 0, 0, 0.3);
  }
  html[data-theme="auto"] .spotlight-input {
    background: #f8fafc;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .spotlight-item,
  html[data-theme="auto"] .spotlight-empty {
    background: #f8fafc;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .spotlight-item.is-active,
  html[data-theme="auto"] .spotlight-item:hover {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.24);
  }
  html[data-theme="auto"] .shortcuts-close {
    background: #f1f3f7;
    color: #374151;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .shortcuts-close:hover {
    background: #e5e8f0;
    border-color: #c9cfd9;
  }

  /* Single page: TOC, tables, overview */
  html[data-theme="auto"] .overview-lead {
    color: #4b5563;
  }
  html[data-theme="auto"] .page-local-toc {
    background: #ffffff;
    border-color: #dde1ea;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
  }
  html[data-theme="auto"] .page-local-toc-title {
    color: #2563eb;
  }
  html[data-theme="auto"] .page-local-toc #TableOfContents li {
    color: #4b5563;
  }
  html[data-theme="auto"] .page-local-toc #TableOfContents a {
    color: #2563eb;
  }
  html[data-theme="auto"] .page-local-toc #TableOfContents a:hover {
    color: #1d4ed8;
  }
  html[data-theme="auto"] .overview-note {
    background: #eff4ff;
    border-left-color: #2563eb;
    color: #1e3a8a;
  }
  html[data-theme="auto"] .overview-table {
    background: #ffffff;
    border-color: #dde1ea;
    box-shadow: none;
  }
  html[data-theme="auto"] .overview-table th {
    background: #f7f8fa;
    color: #111827;
    border-bottom-color: #dde1ea;
  }
  html[data-theme="auto"] .overview-table td {
    color: #374151;
    border-bottom-color: #e5e7eb;
  }
  html[data-theme="auto"] .overview-chip {
    background: #eff4ff;
    border-color: #bfcfef;
    color: #1d4ed8;
  }

  /* Build info / footer */
  html[data-theme="auto"] footer {
    border-top-color: #e5e7eb;
  }
  html[data-theme="auto"] .build-info {
    color: #9ca3af;
  }
}

/* ── Footer ────────────────────────────────────────────────────────────── */
footer { margin: 3rem 0 2rem; border-top: 1px solid var(--border-muted); padding-top: 1rem; }
.build-info {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

@media (max-width: 720px) {
  body { margin: 1rem auto; padding: 4.6rem 1rem 0; }
  .hero { padding: 1.2rem 1rem; margin-bottom: 1.3rem; }
  .hero h1 { font-size: 1.55rem; }
  .hero-lead { font-size: 0.98rem; }
  .search-input {
    font-size: 1rem;
    padding: 0.72rem 0.82rem;
  }
  .section-hero { padding: 1rem 0.9rem; margin-bottom: 0.95rem; }
  .section-hero h1 { font-size: 1.45rem; }
  .section-meta { gap: 0.35rem; }
  .meta-chip { font-size: 0.74rem; }
  .home-block { margin: 1.5rem 0; }
  .section-card { padding: 0.85rem 0.9rem; }
  .section-card .card-title { font-size: 1rem; }
  .section-card .card-desc { font-size: 0.84rem; }
  .section-grid { grid-template-columns: 1fr; gap: 0.75rem; }
  .refmap-grid { grid-template-columns: 1fr; gap: 0.65rem; }
  .refmap-card-head { padding: 0.62rem 0.7rem; }
  .refmap-links { padding: 0 0.7rem 0.68rem; }
  .ranges-hub-grid,
  .ranges-task-grid { grid-template-columns: 1fr; gap: 0.7rem; }
  .ranges-task-group,
  .ranges-hub-card { padding: 0.78rem 0.82rem; }
  .algorithm-core-grid { grid-template-columns: 1fr; gap: 0.7rem; }
  .algorithm-index-panels {
    grid-template-columns: 1fr;
    gap: 0.7rem;
  }
  .algorithm-index-column { gap: 0.7rem; }
  .algorithm-index-panel,
  .algorithm-hub-card { padding: 0.78rem 0.82rem; }
  .algorithm-task-heading { align-items: flex-start; flex-direction: column; }
  .algorithm-index-panel-head,
  .algorithm-task-list { padding-left: 0.82rem; padding-right: 0.82rem; }
  .ranges-index-columns { grid-template-columns: 1fr; gap: 0.7rem; }
  .ranges-index-group-wide { grid-column: auto; }
  .ranges-index-item { align-items: flex-start; flex-direction: column; gap: 0.3rem; }
  .ranges-index-meta { justify-content: flex-start; }
  .search-dropdown { max-height: 16rem; }
  .settings-menu { min-width: 16rem; right: -0.25rem; }
  .page-heading { align-items: flex-start; flex-direction: column; gap: 0.4rem; }
  .page-local-toc { padding: 0.82rem 0.88rem; }
  .overview-page-container .page-local-toc #TableOfContents > ul { columns: 1; }
  .overview-link-chip-list { gap: 0.45rem; }
  .overview-link-chip { font-size: 0.8rem; padding: 0.34rem 0.58rem; }
  .overview-table th,
  .overview-table td {
    padding: 0.62rem 0.68rem;
    font-size: 0.84rem;
  }
  .top-bar {
    width: calc(100vw - 2rem);
    left: 1rem;
    transform: none;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "left right"
      "center center";
    gap: 0.45rem;
  }
  .top-bar-left { grid-area: left; }
  .top-bar-right { grid-area: right; }
  .top-bar-center { grid-area: center; }
  .top-context { max-width: 55vw; }
  .min-standard-control { margin-right: 0; }
  .min-standard-label { display: none; }
  .min-standard-select {
    max-width: 5.6rem;
    font-size: 0.76rem;
    padding: 0 0.3rem;
  }
}

@media (min-width: 721px) and (max-width: 1080px) {
  .refmap-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .ranges-hub-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .ranges-task-grid {
    grid-template-columns: 1fr;
  }
  .algorithm-core-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .algorithm-task-columns {
    grid-template-columns: 1fr;
  }
}

/* ── Light theme: Reference map ──────────────────────────────────────── */
html[data-theme="light"] .refmap-card {
  background: #ffffff;
  border-color: #dde1ea;
}
html[data-theme="light"] .refmap-card[open] {
  border-color: #bfcfef;
}
html[data-theme="light"] .min-standard-status {
  background: rgba(11, 110, 79, 0.08);
  border-color: rgba(11, 110, 79, 0.22);
}
html[data-theme="light"] .min-standard-status-label {
  color: var(--text-secondary);
}
html[data-theme="light"] .min-standard-status-value {
  color: #0b6e4f;
}
html[data-theme="light"] .min-standard-status-hint {
  color: var(--text-secondary);
}
html[data-theme="light"] .min-standard-page-notice {
  background: rgba(196, 125, 14, 0.1);
  border-color: rgba(196, 125, 14, 0.24);
  color: #4b5563;
}
html[data-theme="light"] .min-standard-page-notice-label {
  color: #111827;
}
html[data-theme="light"] .refmap-card-head a,
html[data-theme="light"] .refmap-card-head span {
  color: #111827;
}
html[data-theme="light"] .refmap-card-head::after {
  color: #6b7280;
}
html[data-theme="light"] .refmap-links a {
  color: #2563eb;
}
html[data-theme="light"] .refmap-links a:hover {
  color: #1d4ed8;
}
html[data-theme="light"] .refmap-since {
  background: #eff4ff;
  border-color: #bfcfef;
  color: #1d4ed8;
}
html[data-theme="light"] .refmap-toolbar-btn {
  background: #f1f3f7;
  border-color: #dde1ea;
  color: #374151;
}
html[data-theme="light"] .refmap-toolbar-btn:hover {
  background: #e5e8f0;
  border-color: #c9cfd9;
  color: #111827;
}
html[data-theme="light"] .refmap-empty {
  background: #f7f8fa;
  border-color: #dde1ea;
  color: #6b7280;
}
html[data-theme="light"] .refmap-empty-inline {
  color: #6b7280;
}

/* ── Light theme: Ranges hub ─────────────────────────────────────────── */
html[data-theme="light"] .ranges-task-group,
html[data-theme="light"] .ranges-hub-card {
  background: #ffffff;
  border-color: #dde1ea;
}
html[data-theme="light"] .ranges-task-group:hover,
html[data-theme="light"] .ranges-hub-card:hover {
  border-color: #bfcfef;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.06);
}
html[data-theme="light"] .ranges-card-title a {
  color: #111827;
}
html[data-theme="light"] .ranges-card-title a:hover {
  color: #2563eb;
}
html[data-theme="light"] .ranges-card-desc,
html[data-theme="light"] .ranges-hub-section-head p {
  color: #4b5563;
}
html[data-theme="light"] .ranges-card-link {
  color: #2563eb;
}
html[data-theme="light"] .ranges-card-since {
  background: #eff4ff;
  border-color: #bfcfef;
  color: #1d4ed8;
}
html[data-theme="light"] .ranges-index-group {
  background: #f7f8fa;
  border-color: #dde1ea;
}
html[data-theme="light"] .ranges-index-details {
  background: #ffffff;
  border-color: #dde1ea;
}
html[data-theme="light"] .ranges-index-summary:hover {
  background: #f7f8fa;
}
html[data-theme="light"] .ranges-index-summary-text p,
html[data-theme="light"] .ranges-index-summary-meta {
  color: #6b7280;
}
html[data-theme="light"] .ranges-index-name {
  color: #111827;
}
html[data-theme="light"] .ranges-index-name:hover {
  color: #2563eb;
}
html[data-theme="light"] .ranges-index-item {
  border-bottom-color: rgba(0, 0, 0, 0.06);
}
html[data-theme="light"] .ranges-index-since {
  background: #eff4ff;
  border-color: #bfcfef;
  color: #1d4ed8;
}
html[data-theme="light"] .ranges-index-link {
  color: #2563eb;
}
html[data-theme="light"] .ranges-index-link:hover {
  color: #1d4ed8;
}
html[data-theme="light"] .ranges-related {
  border-top-color: #e5e7eb;
}
html[data-theme="light"] .ranges-related summary {
  color: #6b7280;
}
html[data-theme="light"] .ranges-related-list a {
  color: #2563eb;
}
html[data-theme="light"] .ranges-related-list a:hover {
  color: #1d4ed8;
}
html[data-theme="light"] .ranges-index-section {
  border-top-color: #e5e7eb;
}

/* ── Light theme: Algorithm hub ──────────────────────────────────────── */
html[data-theme="light"] .algorithm-index-panel,
html[data-theme="light"] .algorithm-hub-card {
  background: #ffffff;
  border-color: #dde1ea;
}
html[data-theme="light"] .algorithm-hub-card:hover {
  border-color: #bfcfef;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.06);
}
html[data-theme="light"] .algorithm-index-panel-head {
  background: #f7f8fa;
  border-bottom-color: #e5e7eb;
}
html[data-theme="light"] .algorithm-hub-card-title a {
  color: #111827;
}
html[data-theme="light"] .algorithm-hub-card-title a:hover {
  color: #2563eb;
}
html[data-theme="light"] .algorithm-task-name {
  color: #111827;
}
html[data-theme="light"] .algorithm-task-name:hover {
  color: #2563eb;
}
html[data-theme="light"] .algorithm-hub-card-desc,
html[data-theme="light"] .algorithm-task-desc,
html[data-theme="light"] .algorithm-hub-section-head p {
  color: #4b5563;
}
html[data-theme="light"] .algorithm-hub-badge {
  background: #eff4ff;
  border-color: #bfcfef;
  color: #1d4ed8;
}
html[data-theme="light"] .algorithm-index-count {
  background: #eff4ff;
  border-color: #bfcfef;
  color: #1d4ed8;
}
html[data-theme="light"] .algorithm-index-toggle {
  background: #f1f3f7;
  border-color: #dde1ea;
  color: #374151;
}
html[data-theme="light"] .algorithm-index-toggle:hover {
  background: #e5e8f0;
  border-color: #c9cfd9;
}
html[data-theme="light"] .algorithm-index-panel[data-expanded="false"] .algorithm-index-panel-head {
  border-bottom-color: transparent;
}
html[data-theme="light"] .algorithm-task-item {
  border-bottom-color: rgba(0, 0, 0, 0.05);
}
html[data-theme="light"] .algorithm-hub-link,
html[data-theme="light"] .algorithm-task-link {
  color: #2563eb;
}
html[data-theme="light"] .algorithm-hub-link:hover,
html[data-theme="light"] .algorithm-task-link:hover {
  color: #1d4ed8;
}

@media (prefers-color-scheme: light) {
  /* ── Reference map ── */
  html[data-theme="auto"] .refmap-card {
    background: #ffffff;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .refmap-card[open] {
    border-color: #bfcfef;
  }
  html[data-theme="auto"] .min-standard-status {
    background: rgba(11, 110, 79, 0.08);
    border-color: rgba(11, 110, 79, 0.22);
  }
  html[data-theme="auto"] .min-standard-status-label {
    color: var(--text-secondary);
  }
  html[data-theme="auto"] .min-standard-status-value {
    color: #0b6e4f;
  }
  html[data-theme="auto"] .min-standard-status-hint {
    color: var(--text-secondary);
  }
  html[data-theme="auto"] .min-standard-page-notice {
    background: rgba(196, 125, 14, 0.1);
    border-color: rgba(196, 125, 14, 0.24);
    color: #4b5563;
  }
  html[data-theme="auto"] .min-standard-page-notice-label {
    color: #111827;
  }
  html[data-theme="auto"] .refmap-card-head a,
  html[data-theme="auto"] .refmap-card-head span {
    color: #111827;
  }
  html[data-theme="auto"] .refmap-card-head::after {
    color: #6b7280;
  }
  html[data-theme="auto"] .refmap-links a {
    color: #2563eb;
  }
  html[data-theme="auto"] .refmap-links a:hover {
    color: #1d4ed8;
  }
  html[data-theme="auto"] .refmap-since {
    background: #eff4ff;
    border-color: #bfcfef;
    color: #1d4ed8;
  }
  html[data-theme="auto"] .refmap-toolbar-btn {
    background: #f1f3f7;
    border-color: #dde1ea;
    color: #374151;
  }
  html[data-theme="auto"] .refmap-toolbar-btn:hover {
    background: #e5e8f0;
    border-color: #c9cfd9;
    color: #111827;
  }
  html[data-theme="auto"] .refmap-empty {
    background: #f7f8fa;
    border-color: #dde1ea;
    color: #6b7280;
  }
  html[data-theme="auto"] .refmap-empty-inline {
    color: #6b7280;
  }

  /* ── Ranges hub ── */
  html[data-theme="auto"] .ranges-task-group,
  html[data-theme="auto"] .ranges-hub-card {
    background: #ffffff;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .ranges-task-group:hover,
  html[data-theme="auto"] .ranges-hub-card:hover {
    border-color: #bfcfef;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.06);
  }
  html[data-theme="auto"] .ranges-card-title a {
    color: #111827;
  }
  html[data-theme="auto"] .ranges-card-title a:hover {
    color: #2563eb;
  }
  html[data-theme="auto"] .ranges-card-desc,
  html[data-theme="auto"] .ranges-hub-section-head p {
    color: #4b5563;
  }
  html[data-theme="auto"] .ranges-card-link {
    color: #2563eb;
  }
  html[data-theme="auto"] .ranges-card-since {
    background: #eff4ff;
    border-color: #bfcfef;
    color: #1d4ed8;
  }
  html[data-theme="auto"] .ranges-index-group {
    background: #f7f8fa;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .ranges-index-details {
    background: #ffffff;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .ranges-index-summary:hover {
    background: #f7f8fa;
  }
  html[data-theme="auto"] .ranges-index-summary-text p,
  html[data-theme="auto"] .ranges-index-summary-meta {
    color: #6b7280;
  }
  html[data-theme="auto"] .ranges-index-name {
    color: #111827;
  }
  html[data-theme="auto"] .ranges-index-name:hover {
    color: #2563eb;
  }
  html[data-theme="auto"] .ranges-index-item {
    border-bottom-color: rgba(0, 0, 0, 0.06);
  }
  html[data-theme="auto"] .ranges-index-since {
    background: #eff4ff;
    border-color: #bfcfef;
    color: #1d4ed8;
  }
  html[data-theme="auto"] .ranges-index-link {
    color: #2563eb;
  }
  html[data-theme="auto"] .ranges-index-link:hover {
    color: #1d4ed8;
  }
  html[data-theme="auto"] .ranges-related {
    border-top-color: #e5e7eb;
  }
  html[data-theme="auto"] .ranges-related summary {
    color: #6b7280;
  }
  html[data-theme="auto"] .ranges-related-list a {
    color: #2563eb;
  }
  html[data-theme="auto"] .ranges-related-list a:hover {
    color: #1d4ed8;
  }
  html[data-theme="auto"] .ranges-index-section {
    border-top-color: #e5e7eb;
  }

  /* ── Algorithm hub ── */
  html[data-theme="auto"] .algorithm-index-panel,
  html[data-theme="auto"] .algorithm-hub-card {
    background: #ffffff;
    border-color: #dde1ea;
  }
  html[data-theme="auto"] .algorithm-hub-card:hover {
    border-color: #bfcfef;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.06);
  }
  html[data-theme="auto"] .algorithm-index-panel-head {
    background: #f7f8fa;
    border-bottom-color: #e5e7eb;
  }
  html[data-theme="auto"] .algorithm-hub-card-title a {
    color: #111827;
  }
  html[data-theme="auto"] .algorithm-hub-card-title a:hover {
    color: #2563eb;
  }
  html[data-theme="auto"] .algorithm-task-name {
    color: #111827;
  }
  html[data-theme="auto"] .algorithm-task-name:hover {
    color: #2563eb;
  }
  html[data-theme="auto"] .algorithm-hub-card-desc,
  html[data-theme="auto"] .algorithm-task-desc,
  html[data-theme="auto"] .algorithm-hub-section-head p {
    color: #4b5563;
  }
  html[data-theme="auto"] .algorithm-hub-badge {
    background: #eff4ff;
    border-color: #bfcfef;
    color: #1d4ed8;
  }
  html[data-theme="auto"] .algorithm-index-count {
    background: #eff4ff;
    border-color: #bfcfef;
    color: #1d4ed8;
  }
  html[data-theme="auto"] .algorithm-index-toggle {
    background: #f1f3f7;
    border-color: #dde1ea;
    color: #374151;
  }
  html[data-theme="auto"] .algorithm-index-toggle:hover {
    background: #e5e8f0;
    border-color: #c9cfd9;
  }
  html[data-theme="auto"] .algorithm-index-panel[data-expanded="false"] .algorithm-index-panel-head {
    border-bottom-color: transparent;
  }
  html[data-theme="auto"] .algorithm-task-item {
    border-bottom-color: rgba(0, 0, 0, 0.05);
  }
  html[data-theme="auto"] .algorithm-hub-link,
  html[data-theme="auto"] .algorithm-task-link {
    color: #2563eb;
  }
  html[data-theme="auto"] .algorithm-hub-link:hover,
  html[data-theme="auto"] .algorithm-task-link:hover {
    color: #1d4ed8;
  }
}