:root {
  --void: #000000;
  --surface-1: #050505;
  --surface-2: #0a0a0a;
  --surface-3: #0f0f0f;
  --surface-4: #141414;
  --border: #1a1a1a;
  --border-strong: #333333;
  --text: #ffffff;
  --text-dim: #999999;
  --text-faint: #505050;
  --text-body: #b0b0b0;
  --text-primary: #e6e6e6;
  --text-bright: #ffffff;
  --accent: #c9a87c;
  --accent-soft: rgba(201, 168, 124, 0.16);
  --accent-wash: rgba(201, 168, 124, 0.08);
  --alert: #cc4444;
  --alert-soft: rgba(204, 68, 68, 0.12);
  --documented: #56b29a;
  --documented-soft: rgba(86, 178, 154, 0.14);
  --claimed: #d4a843;
  --claimed-soft: rgba(212, 168, 67, 0.16);
  --inferred: #70a0d9;
  --inferred-soft: rgba(112, 160, 217, 0.16);
  --disputed: #c85f88;
  --disputed-soft: rgba(200, 95, 136, 0.15);
  --shadow: none;
  --radius-lg: 8px;
  --radius-md: 8px;
  --radius-sm: 4px;
  --content-width: 1100px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text-body);
  background: var(--void);
  font-family: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
select {
  font: inherit;
}

.site-shell {
  padding-top: 52px;
}

.global-nav {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 100;
  height: 52px;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(20px);
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: max-content;
}

.brand-label,
.eyebrow,
.section-kicker,
.meta-label,
.tagline,
.footer-label,
.rail-label,
.legend-label,
.microcopy,
.chip,
.evidence-label,
.status-pill,
.summary-label,
.table-label {
  font-family: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.brand-label {
  font-size: 11px;
  color: var(--accent);
}

.brand-subtitle {
  font-size: 10px;
  color: var(--text-faint);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-link {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 4px;
  color: var(--text-faint);
  text-decoration: none;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.08em;
  transition: all 0.2s;
  white-space: nowrap;
  border: none;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--text-dim);
  background: var(--surface-3);
  outline: none;
}

.nav-link.active {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-status {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  color: var(--alert);
  letter-spacing: 0.1em;
  animation: pulse 2s ease-in-out infinite;
  white-space: nowrap;
}

.nav-status::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: none;
}

.page-frame {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 24px 28px 100px;
}

.hero-panel {
  position: relative;
  overflow: visible;
  margin-bottom: 52px;
  padding: 72px 0 52px;
  border: none;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.hero-panel::after {
  display: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 10px;
  color: var(--alert);
}

.eyebrow::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s ease-in-out infinite;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.9fr);
  gap: 20px;
  align-items: start;
}

.hero-title {
  margin: 0 0 16px;
  font-size: clamp(2.3rem, 5vw, 3.7rem);
  line-height: 1.1;
  font-weight: 200;
  color: var(--text-bright);
  letter-spacing: -0.01em;
}

.hero-title strong {
  font-weight: 200;
  color: var(--accent);
}

.hero-subtitle {
  max-width: 64ch;
  margin: 0 0 18px;
  font-size: 18px;
  color: var(--text-dim);
}

.hero-copy {
  max-width: 68ch;
  color: var(--text-body);
  font-size: 14px;
}

.hero-meta-grid,
.stat-grid,
.summary-grid,
.insight-grid,
.route-grid,
.card-grid,
.fact-grid,
.matrix-grid,
.source-grid,
.quote-grid {
  display: grid;
  gap: 14px;
}

.hero-meta-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.meta-card,
.stat-card,
.summary-card,
.insight-card,
.route-card,
.surface-card,
.callout-card,
.legend-card,
.figure-card,
.matrix-card,
.source-card,
.rail-card,
.fact-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-2);
  box-shadow: none;
}

.meta-card,
.stat-card,
.summary-card,
.insight-card,
.surface-card,
.callout-card,
.legend-card,
.figure-card,
.matrix-card,
.source-card,
.rail-card,
.fact-card {
  padding: 16px 16px 14px;
}

.meta-label,
.rail-label,
.legend-label,
.summary-label,
.table-label {
  font-size: 9px;
  color: var(--text-faint);
}

.meta-value {
  margin-top: 6px;
  font-size: 14px;
  color: var(--text-primary);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 8px;
  border-radius: 3px;
  border: 1px solid var(--border);
  font-size: 9px;
  color: var(--text-dim);
  background: var(--surface-3);
}

.status-pill.alert {
  color: var(--alert);
  border-color: rgba(197, 79, 69, 0.3);
  background: var(--alert-soft);
}

.chip-row,
.legend-row,
.tag-row,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 3px;
  border: 1px solid var(--border);
  font-size: 9px;
  color: var(--text-dim);
  background: var(--surface-3);
}

.chip strong {
  font-weight: 600;
  color: var(--text);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 24px;
  align-items: start;
}

.content-main {
  min-width: 0;
}

.side-rail {
  position: sticky;
  top: 72px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.section-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 14px;
}

.section-link {
  padding: 8px 10px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 12px;
  color: var(--text-faint);
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
  border: none;
}

.section-link:hover,
.section-link:focus-visible,
.section-link.active {
  color: var(--text-primary);
  background: var(--surface-3);
  outline: none;
}

.jump-select {
  display: none;
  width: 100%;
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--text-primary);
  background: var(--surface-2);
}

.evidence-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 3px;
  border: 1px solid transparent;
  font-size: 9px;
  line-height: 1;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.evidence-label::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.evidence-label.documented {
  color: var(--documented);
  background: var(--documented-soft);
  border-color: rgba(86, 178, 154, 0.22);
}

.evidence-label.claimed {
  color: var(--claimed);
  background: var(--claimed-soft);
  border-color: rgba(212, 168, 67, 0.22);
}

.evidence-label.inferred {
  color: var(--inferred);
  background: var(--inferred-soft);
  border-color: rgba(112, 160, 217, 0.22);
}

.evidence-label.disputed {
  color: var(--disputed);
  background: var(--disputed-soft);
  border-color: rgba(200, 95, 136, 0.22);
}

.section-block {
  position: relative;
  margin-bottom: 60px;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  overflow: visible;
}

.section-block::before {
  display: none;
}

.section-kicker {
  margin-bottom: 12px;
  font-size: 10px;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-kicker::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.section-title {
  margin: 0 0 24px;
  font-size: 28px;
  line-height: 1.2;
  font-weight: 200;
  color: var(--text-primary);
}

.section-intro {
  max-width: 70ch;
  margin-bottom: 22px;
  color: var(--text-dim);
  font-size: 15px;
}

.summary-grid,
.insight-grid,
.card-grid,
.route-grid,
.fact-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stat-grid {
  margin-top: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 0;
  padding: 16px;
}

.stat-value {
  font-size: clamp(2rem, 3vw, 2.6rem);
  font-weight: 200;
  line-height: 1;
  color: var(--text-bright);
}

.stat-note {
  color: var(--text-faint);
  font-size: 12px;
}

.summary-card h3,
.insight-card h3,
.surface-card h3,
.figure-card h3,
.callout-card h3,
.matrix-card h3,
.source-card h3,
.fact-card h3 {
  margin: 12px 0 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.summary-card p,
.insight-card p,
.surface-card p,
.callout-card p,
.source-card p,
.fact-card p {
  margin: 0;
  color: var(--text-body);
  font-size: 14px;
}

.route-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.route-card .preview {
  aspect-ratio: 16 / 10;
  border-bottom: 1px solid var(--border);
  background: var(--surface-1);
}

.route-card .preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.route-card .route-body {
  padding: 18px;
}

.route-card h3 {
  margin: 10px 0 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.route-card p {
  margin: 0 0 16px;
  color: var(--text-body);
  font-size: 14px;
}

.route-link,
.button-link,
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  text-decoration: none;
}

.route-link::after,
.button-link::after,
.text-link::after {
  content: "→";
  transition: transform 160ms ease;
}

.route-link:hover::after,
.button-link:hover::after,
.text-link:hover::after {
  transform: translateX(4px);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.button-link {
  padding: 10px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.button-link.ghost {
  color: var(--text-dim);
  background: var(--surface-1);
  border-color: var(--border);
}

.button-link.ghost::after {
  color: var(--accent);
}

.figure-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  align-items: stretch;
}

.figure-card {
  padding: 24px;
}

.diagram-stage {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-1);
  overflow: hidden;
  min-height: 380px;
}

.diagram-stage svg {
  width: 100%;
  height: auto;
  display: block;
  min-height: 380px;
}

.diagram-node {
  cursor: pointer;
  transition: opacity 160ms ease, transform 160ms ease;
}

.diagram-node:hover,
.diagram-node:focus-visible,
.diagram-node.active {
  opacity: 1;
}

.diagram-node text {
  fill: var(--text);
  font-family: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 400;
}

.diagram-node .node-core {
  fill: var(--surface-3);
  stroke: rgba(255, 255, 255, 0.15);
  stroke-width: 2;
  transition: fill 200ms ease, stroke 200ms ease;
}

.diagram-node .node-ring {
  fill: transparent;
  stroke: rgba(201, 168, 124, 0.18);
  stroke-width: 2.5;
  transition: stroke 200ms ease;
}

.diagram-node.active .node-core,
.diagram-node:hover .node-core,
.diagram-node:focus-visible .node-core {
  fill: rgba(201, 168, 124, 0.14);
  stroke: rgba(201, 168, 124, 0.7);
}

.diagram-node.active .node-ring,
.diagram-node:hover .node-ring,
.diagram-node:focus-visible .node-ring {
  stroke: rgba(201, 168, 124, 0.6);
}

.diagram-edge {
  stroke: rgba(255, 255, 255, 0.18);
  stroke-width: 2;
}

.diagram-panel {
  display: none;
}

.diagram-panel.active {
  display: block;
}

.diagram-panel h3 {
  margin-top: 14px;
  font-size: 16px;
}

.diagram-panel p {
  font-size: 14px;
  line-height: 1.6;
}

/* When figure-shell is stacked, give the panel card a clear boundary */
.figure-shell > .figure-card:last-child {
  border-top: 1px solid var(--accent);
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  min-height: 180px;
}

.diagram-panel ul,
.timeline-list,
.source-list,
.matrix-list,
.bullet-list,
.fact-list {
  margin: 14px 0 0;
  padding-left: 18px;
}

.diagram-panel li,
.timeline-list li,
.source-list li,
.matrix-list li,
.bullet-list li,
.fact-list li {
  margin-bottom: 8px;
  color: var(--text-body);
  font-size: 14px;
}

.timeline-rail {
  position: relative;
  padding-left: 28px;
  display: grid;
  gap: 18px;
}

.timeline-rail::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding: 0 0 0 14px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -21px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--text-faint);
  background: var(--surface-4);
}

.timeline-item h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 300;
  color: var(--text-primary);
}

.timeline-item .timeline-date {
  font-family: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 6px;
}

.quote-card blockquote {
  margin: 0;
  padding-left: 18px;
  border-left: 2px solid var(--accent);
  color: var(--text);
  font-size: 1.05rem;
}

.quote-card cite {
  display: block;
  margin-top: 12px;
  color: var(--text-faint);
  font-style: normal;
}

.matrix-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.matrix-card .probability {
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--accent);
}

.table-wrap {
  overflow-x: auto;
  border: none;
  border-radius: 0;
  background: transparent;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

th,
td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--surface-3);
  text-align: left;
  vertical-align: top;
}

th {
  font-family: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 10px;
  font-weight: 500;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-bottom: 1px solid var(--border);
}

td {
  color: var(--text-body);
  font-size: 13px;
}

.drawer-group {
  display: grid;
  gap: 14px;
}

.drawer {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface-2);
  overflow: hidden;
}

.drawer summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  color: var(--text-primary);
}

.drawer summary::-webkit-details-marker {
  display: none;
}

.drawer summary::after {
  content: "+";
  font-size: 12px;
  color: var(--text-faint);
}

.drawer[open] summary::after {
  content: "−";
}

.drawer-body {
  padding: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-body);
  background: var(--surface-1);
}

.drawer-body > :first-child {
  margin-top: 0;
}

.drawer-body > :last-child {
  margin-bottom: 0;
}

.dual-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.archive-callout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) auto;
  gap: 18px;
  align-items: center;
  padding: 22px 24px;
  border-radius: 6px;
  border: 1px solid var(--accent);
  border-left: 3px solid var(--accent);
  background: var(--surface-2);
}

.archive-callout p {
  margin: 8px 0 0;
  color: var(--text-dim);
}

.keyline {
  height: 1px;
  margin: 32px 0;
  background: linear-gradient(90deg, rgba(201, 168, 124, 0.4), rgba(255, 255, 255, 0.04));
}

.footer {
  margin-top: 64px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
}

.footer p {
  margin: 10px 0 0;
  font-size: 12px;
}

.footer a {
  color: var(--accent);
}

.microcopy {
  font-size: 10px;
  color: var(--text-faint);
}

.caption {
  margin-top: 12px;
  color: var(--text-faint);
  font-size: 12px;
}

.muted {
  color: var(--text-dim);
}

.strong {
  color: var(--text);
}

.alert-text {
  color: var(--alert);
}

.accent-text {
  color: var(--accent);
}

.inline-card {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 3px;
  background: var(--surface-3);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

@media (max-width: 1160px) {
  .content-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .side-rail {
    position: static;
    order: -1;
  }

  .hero-grid,
  .figure-shell,
  .archive-callout,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .site-shell {
    padding-top: 64px;
  }

  .global-nav {
    height: auto;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
    padding: 12px 20px;
  }

  .nav-status {
    margin-left: 0;
  }

  .page-frame {
    padding: 24px 20px 110px;
  }

  .hero-panel {
    padding: 56px 0 44px;
  }

  .hero-meta-grid,
  .summary-grid,
  .insight-grid,
  .route-grid,
  .card-grid,
  .fact-grid,
  .matrix-grid,
  .dual-column,
  .quote-grid {
    grid-template-columns: 1fr;
  }

  .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-nav {
    display: none;
  }

  .jump-select {
    display: block;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 30px;
  }

  .stat-grid {
    grid-template-columns: 1fr;
  }

  .hero-meta-grid {
    grid-template-columns: 1fr;
  }

  .nav-status {
    display: none;
  }
}