/* SignalTerrain foundation — topics demo (quiet, editorial) */
.st-page {
  --st-bg: #f2efe8;
  --st-ink: #1a1916;
  --st-muted: #5a564e;
  --st-line: #d2ccc0;
  --st-panel: #faf8f3;
  --st-accent: #3a5348;
  --st-focus: #6b5a32;
  background:
    radial-gradient(1000px 520px at 0% -10%, #e4ebe6 0%, transparent 55%),
    radial-gradient(800px 480px at 100% 0%, #ebe6dc 0%, transparent 50%),
    var(--st-bg);
  color: var(--st-ink);
  min-height: 70vh;
}

.st-demo {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.st-demo-header h1 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 2.6rem);
  margin: 0 0 0.35rem;
  letter-spacing: -0.02em;
}

.st-lead {
  margin: 0;
  color: var(--st-muted);
  max-width: 36rem;
  font-size: 1.05rem;
}

.st-badge,
.st-disclaimer {
  margin-top: 0.85rem;
  font-size: 0.8rem;
  color: var(--st-muted);
  border: 1px solid var(--st-line);
  padding: 0.5rem 0.65rem;
  background: rgba(255, 255, 255, 0.35);
}

.st-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1.25rem 0 1rem;
}

.st-filter {
  font: inherit;
  font-size: 0.8rem;
  text-transform: capitalize;
  border: 1px solid var(--st-line);
  background: transparent;
  color: var(--st-muted);
  padding: 0.35rem 0.7rem;
  cursor: pointer;
}

.st-filter.is-active {
  color: var(--st-ink);
  border-color: var(--st-accent);
  background: var(--st-panel);
}

.st-demo-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.95fr) minmax(280px, 1.2fr);
  gap: 1rem;
  align-items: start;
}

@media (max-width: 800px) {
  .st-demo-grid {
    grid-template-columns: 1fr;
  }
}

.st-topic-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.st-topic-card {
  text-align: left;
  font: inherit;
  border: 1px solid var(--st-line);
  background: var(--st-panel);
  padding: 0.85rem 0.95rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transition: border-color 160ms ease, background 160ms ease;
}

.st-topic-card:hover,
.st-topic-card:focus-visible {
  border-color: var(--st-accent);
  outline: none;
}

.st-topic-card.is-selected {
  border-color: var(--st-accent);
  box-shadow: inset 3px 0 0 var(--st-accent);
}

.st-topic-workspace {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--st-accent);
}

.st-topic-title {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.2rem;
  line-height: 1.25;
}

.st-topic-summary {
  font-size: 0.9rem;
  color: var(--st-muted);
}

.st-topic-meta {
  font-size: 0.75rem;
  color: var(--st-muted);
}

.st-topic-detail {
  border: 1px solid var(--st-line);
  background: var(--st-panel);
  padding: 1.1rem 1.2rem 1.35rem;
  min-height: 20rem;
}

.st-detail-eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--st-accent);
}

.st-detail h2 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 500;
  font-size: 1.65rem;
  margin: 0 0 0.5rem;
}

.st-detail h3 {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 1.15rem 0 0.4rem;
  color: var(--st-focus);
}

.st-detail-summary {
  color: var(--st-muted);
  margin: 0 0 0.75rem;
}

.st-detail-meta,
.st-empty,
.st-loading,
.st-error {
  font-size: 0.85rem;
  color: var(--st-muted);
}

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

.st-rel-list li {
  padding: 0.55rem 0;
  border-top: 1px solid var(--st-line);
}

.st-rel-link {
  font: inherit;
  border: 0;
  background: none;
  color: var(--st-ink);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  padding: 0;
  display: block;
  text-align: left;
}

.st-rel-type {
  display: block;
  font-size: 0.75rem;
  color: var(--st-muted);
  margin-top: 0.15rem;
}

.st-back {
  display: inline-block;
  margin: 1rem 1.25rem 0;
  font-size: 0.85rem;
  color: var(--st-muted);
}

/* Living knowledge graph explorer */
.st-explorer-toolbar {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin: 1rem 0 1.25rem;
}

.st-search-label {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.85rem;
  color: var(--st-muted);
}

.st-search {
  font: inherit;
  min-width: min(100%, 18rem);
  padding: 0.4rem 0.55rem;
  border: 1px solid var(--st-line);
  background: var(--st-panel);
  color: var(--st-ink);
}

.st-filter-block span {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--st-accent);
  margin-bottom: 0.35rem;
}

.st-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.st-chip {
  font: inherit;
  font-size: 0.72rem;
  border: 1px solid var(--st-line);
  background: transparent;
  color: var(--st-muted);
  padding: 0.28rem 0.55rem;
  cursor: pointer;
}

.st-chip.is-active {
  border-color: var(--st-accent);
  color: var(--st-ink);
  background: var(--st-panel);
}

.st-explorer-grid {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(280px, 1.15fr);
  gap: 1rem;
  align-items: start;
}

@media (max-width: 900px) {
  .st-explorer-grid {
    grid-template-columns: 1fr;
  }
}

.st-graph-panel {
  border: 1px solid var(--st-line);
  background: var(--st-panel);
  padding: 1rem 1.1rem 1.2rem;
}

.st-graph-panel h2,
.st-search-results h2 {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--st-accent);
  margin: 0.85rem 0 0.45rem;
}

.st-graph-panel h2:first-child {
  margin-top: 0;
}

.st-graph-nodes,
.st-graph-edges,
.st-search-results ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.st-graph-nodes li,
.st-graph-edges li,
.st-search-results li {
  padding: 0.55rem 0;
  border-top: 1px solid var(--st-line);
}

.st-graph-nodes li:first-child,
.st-graph-edges li:first-child {
  border-top: 0;
  padding-top: 0;
}

.st-graph-nodes li.is-focus {
  box-shadow: inset 3px 0 0 var(--st-accent);
  padding-left: 0.55rem;
}

.st-node-title {
  font: inherit;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.1rem;
  border: 0;
  background: none;
  padding: 0;
  cursor: pointer;
  text-align: left;
  color: var(--st-ink);
}

.st-node-actions {
  margin-top: 0.25rem;
}

.st-node-actions button,
.st-graph-edges button,
.st-search-results button {
  font: inherit;
  font-size: 0.78rem;
  border: 1px solid var(--st-line);
  background: transparent;
  color: var(--st-muted);
  padding: 0.2rem 0.45rem;
  cursor: pointer;
}

.st-muted {
  color: var(--st-muted);
  font-size: 0.78rem;
}

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

.st-timeline li {
  padding: 0.5rem 0 0.5rem 0.75rem;
  border-left: 2px solid var(--st-line);
  margin-left: 0.2rem;
}

.st-timeline-at {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--st-focus);
}

.st-timeline-text {
  display: block;
  margin-top: 0.15rem;
}

.st-timeline-src {
  display: block;
  font-size: 0.75rem;
  color: var(--st-muted);
}

.st-analysis h3 {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 1.1rem 0 0.35rem;
  color: var(--st-focus);
}

.st-search-results {
  border: 1px solid var(--st-line);
  background: var(--st-panel);
  padding: 0.75rem 1rem 1rem;
  margin-bottom: 1rem;
}

/* Intelligence Summary prototype */
.st-summary-questions ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  font-size: 0.9rem;
  color: var(--st-muted);
}

.st-summary-questions h2 {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--st-accent);
  margin: 0 0 0.45rem;
}

.st-summary-grid {
  display: grid;
  grid-template-columns: minmax(260px, 1.05fr) minmax(280px, 1fr);
  gap: 1rem;
  align-items: start;
}

@media (max-width: 900px) {
  .st-summary-grid {
    grid-template-columns: 1fr;
  }
}

.st-summary-today {
  border: 1px solid var(--st-line);
  background: var(--st-panel);
  padding: 1rem 1.1rem 1.25rem;
}

.st-summary-today h2 {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--st-accent);
  margin: 1rem 0 0.5rem;
}

.st-summary-today h2:first-child {
  margin-top: 0;
}

.st-summary-bullets,
.st-summary-recs {
  list-style: none;
  margin: 0;
  padding: 0;
}

.st-summary-bullets li,
.st-summary-recs li {
  padding: 0.45rem 0;
  border-top: 1px solid var(--st-line);
}

.st-summary-bullets li:first-child,
.st-summary-recs li:first-child {
  border-top: 0;
  padding-top: 0;
}

.st-summary-bullet {
  font: inherit;
  text-align: left;
  border: 0;
  background: none;
  padding: 0.15rem 0;
  cursor: pointer;
  color: var(--st-ink);
  line-height: 1.4;
}

.st-summary-bullet.is-selected {
  box-shadow: inset 3px 0 0 var(--st-accent);
  padding-left: 0.55rem;
}

.st-domain {
  display: inline-block;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--st-accent);
  margin-right: 0.35rem;
}

.st-summary-foot {
  margin-top: 1.25rem;
}

.st-summary-foot a {
  color: var(--st-muted);
}

/* Shared cyber sub-nav chrome (hash panels + peer links) */
.st-cyber-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  list-style: none;
  padding: 0;
  margin: 1rem 0 1.5rem;
}

.st-cyber-nav a {
  color: var(--st-accent, #3a5348);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.st-cyber-nav a[aria-current="page"],
.st-cyber-nav a[aria-current="true"] {
  border-bottom-color: var(--st-accent, #3a5348);
  font-weight: 600;
}

.st-cyber-list {
  list-style: none;
  padding: 0;
}

.st-cyber-list li {
  padding: 0.75rem 0;
  border-top: 1px solid var(--st-line, #d2ccc0);
}

.st-cyber-peers {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  line-height: 1.7;
}

.st-cyber-peers a {
  color: var(--st-accent, #3a5348);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.st-cyber-peers a:hover {
  border-bottom-color: var(--st-accent, #3a5348);
}