:root {
  color-scheme: light;
  --bg: #f6f4ef;
  --panel: #ffffff;
  --ink: #1f2933;
  --muted: #5d6975;
  --line: #d8d2c6;
  --accent: #287a65;
  --accent-strong: #1f5f50;
  --amber: #b7791f;
  --blue: #315f8f;
  --rose: #9d4b5f;
  --shadow: 0 18px 38px rgba(31, 41, 51, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: var(--accent-strong);
  font-weight: 650;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code,
pre {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

code {
  background: #ece7dc;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.1rem 0.3rem;
}

pre {
  background: #17202a;
  border-radius: 8px;
  color: #f8fafc;
  overflow: auto;
  padding: 1rem;
}

pre code {
  background: transparent;
  border: 0;
  color: inherit;
  padding: 0;
}

.site-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: #efe9dd;
  border-right: 1px solid var(--line);
  padding: 1.25rem;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  color: var(--ink);
  display: block;
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

nav {
  display: grid;
  gap: 0.35rem;
}

nav a {
  border-radius: 6px;
  color: var(--ink);
  padding: 0.55rem 0.7rem;
}

nav a.active,
nav a:hover {
  background: var(--panel);
  box-shadow: inset 3px 0 0 var(--accent);
  text-decoration: none;
}

.content {
  padding: clamp(1.25rem, 3vw, 3rem);
}

.public-notice {
  background: #eef3f9;
  border: 1px solid #c8d6e5;
  border-radius: 8px;
  color: var(--muted);
  display: grid;
  gap: 0.25rem;
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
}

.public-notice strong {
  color: var(--blue);
}

.overview-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.9fr);
  margin-bottom: 1rem;
}

.intro-panel,
.platform-map,
.empty-state,
.table-section,
.article,
.page-list {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: clamp(1rem, 2vw, 1.5rem);
}

.intro-panel h1,
.page-header h1 {
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
  margin: 0.25rem 0 1rem;
  max-width: 12ch;
}

.intro-panel p,
.page-header p {
  color: var(--muted);
  max-width: 74ch;
}

.eyebrow {
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0;
  text-transform: uppercase;
}

.metric-grid,
.section-grid,
.card-grid,
.two-column {
  display: grid;
  gap: 1rem;
}

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

.metric,
.route-card,
.page-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
}

.metric span {
  display: block;
  font-size: 2rem;
  font-weight: 800;
}

.metric p,
.route-card p,
.page-card p {
  color: var(--muted);
  margin: 0.25rem 0 0;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.1rem;
}

.home-actions a,
.primary-link a {
  background: #e8f1ed;
  border: 1px solid #bed8cf;
  border-radius: 6px;
  display: inline-block;
  padding: 0.45rem 0.65rem;
}

.home-actions a:hover,
.primary-link a:hover {
  background: #d9ebe4;
  text-decoration: none;
}

.home-section,
.marketing-entry {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
  padding: clamp(1rem, 2vw, 1.5rem);
}

.section-heading {
  max-width: 840px;
}

.section-heading h2,
.marketing-entry h2 {
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: 1.18;
  margin: 0.35rem 0 0.75rem;
}

.atlas-grid,
.path-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.atlas-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.atlas-card,
.path-card,
.link-group {
  background: #f7f2e8;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
}

.atlas-card h3,
.path-card h3,
.link-group h3 {
  font-size: 1rem;
  margin: 0 0 0.35rem;
}

.atlas-card p,
.marketing-entry p {
  color: var(--muted);
}

.atlas-card p {
  margin: 0 0 0.75rem;
}

.atlas-card ul,
.path-card ol,
.link-group ul {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding-left: 1.15rem;
}

.marketing-entry {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
}

.marketing-link-groups {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.home-search {
  margin-bottom: 1rem;
  margin-top: 0;
}

.platform-map {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(240px, 0.8fr) minmax(0, 1.2fr);
  margin-bottom: 1rem;
}

.platform-map h2 {
  font-size: clamp(1.35rem, 2vw, 2.1rem);
  line-height: 1.15;
  margin: 0.35rem 0 0;
}

.map-lanes {
  display: grid;
  gap: 0.55rem;
}

.map-lane {
  align-items: center;
  background: #f7f2e8;
  border-left: 6px solid var(--accent);
  border-radius: 6px;
  display: flex;
  justify-content: space-between;
  min-height: 3.1rem;
  padding: 0.75rem 1rem;
}

.map-lane:nth-child(2) {
  border-color: var(--blue);
}

.map-lane:nth-child(3) {
  border-color: var(--amber);
}

.map-lane:nth-child(4) {
  border-color: var(--rose);
}

.map-lane span {
  color: var(--muted);
  font-weight: 700;
}

.map-lane strong {
  font-size: 1.35rem;
}

.section-grid,
.card-grid,
.two-column {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-list,
.empty-state,
.page-header,
.table-section {
  margin-top: 1rem;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.7rem;
}

.badge {
  background: #efe9dd;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.25rem 0.5rem;
}

.badge-link {
  background: #e8f1ed;
  border: 1px solid #bed8cf;
  border-radius: 999px;
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 750;
  padding: 0.25rem 0.55rem;
}

.thread-strip {
  align-items: center;
  background: #f7f2e8;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.75rem;
}

.thread-strip span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.article {
  max-width: 980px;
}

.article-body {
  border-top: 1px solid var(--line);
  margin-top: 1.25rem;
  padding-top: 1rem;
}

.visual-gallery {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

.visual-card {
  background: #f7f2e8;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 0;
  overflow: hidden;
}

.visual-frame {
  align-items: center;
  background: #fffdfa;
  display: flex;
  justify-content: center;
  min-height: 220px;
  padding: 1rem;
}

.visual-frame a {
  display: block;
  width: 100%;
}

.visual-frame img {
  display: block;
  height: auto;
  margin: 0 auto;
  max-height: 560px;
  max-width: 100%;
  object-fit: contain;
}

.visual-card figcaption {
  border-top: 1px solid var(--line);
  padding: 0.85rem 1rem;
}

.visual-card figcaption span {
  color: var(--accent-strong);
  display: block;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.visual-card figcaption p {
  color: var(--muted);
  margin: 0.2rem 0 0.5rem;
}

.visual-open-link {
  display: inline-block;
  font-size: 0.86rem;
  margin-bottom: 0.5rem;
}

.visual-card details {
  color: var(--muted);
  font-size: 0.86rem;
}

.visual-card summary {
  cursor: pointer;
  font-weight: 750;
}

.visual-card ul {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
}

.coverage-metrics {
  margin-top: 1rem;
}

.coverage-level {
  border-radius: 999px;
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 800;
  padding: 0.22rem 0.5rem;
}

.coverage-level-direct {
  background: #e8f1ed;
  color: var(--accent-strong);
}

.coverage-level-parent {
  background: #eef3f9;
  color: var(--blue);
}

.coverage-level-graph-reachable {
  background: #fbefd9;
  color: var(--amber);
}

.coverage-level-uncovered {
  background: #f7e5e9;
  color: var(--rose);
}

.coverage-table code {
  overflow-wrap: anywhere;
}

.article-body h2,
.article-body h3,
.evidence-panel h2,
.table-section h2,
.page-list h2 {
  line-height: 1.2;
  margin-top: 0;
}

.evidence-panel {
  background: #f7f2e8;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-top: 1.25rem;
  padding: 1rem;
}

.related-panel {
  border-top: 1px solid var(--line);
  margin-top: 1.25rem;
  padding-top: 1rem;
}

.related-panel ul {
  display: grid;
  gap: 0.55rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.related-panel li {
  background: #f7f2e8;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem;
}

.related-panel span {
  color: var(--muted);
  display: block;
  font-size: 0.82rem;
  margin-top: 0.15rem;
}

.search-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-top: 1rem;
  padding: 1rem;
}

.search-panel label {
  display: block;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.search-panel input {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  font: inherit;
  min-height: 2.6rem;
  padding: 0.5rem 0.7rem;
  width: 100%;
}

.search-results {
  display: grid;
  gap: 0.6rem;
  margin-top: 0.8rem;
}

.search-result {
  background: #f7f2e8;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem;
}

.search-result p,
.search-result small,
.empty-inline {
  color: var(--muted);
}

.search-result p {
  margin: 0.15rem 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0.65rem;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
}

.artifact-link {
  margin-top: 1rem;
}

@media (max-width: 860px) {
  .site-shell,
  .overview-grid,
  .platform-map,
  .section-grid,
  .card-grid,
  .two-column,
  .atlas-grid,
  .path-grid,
  .marketing-entry,
  .marketing-link-groups {
    grid-template-columns: 1fr;
  }

  .sidebar {
    height: auto;
    position: static;
  }

  .intro-panel h1,
  .page-header h1 {
    font-size: 2.2rem;
    max-width: 16ch;
  }
}