.nodes-hero {
  position: relative;
  overflow-x: clip;
  padding-top: 76px;
  padding-bottom: 76px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.nodes-hero::before {
  position: absolute;
  top: 8%;
  right: -8%;
  width: 48%;
  height: 82%;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle, var(--color-accent-soft), transparent 68%);
  content: "";
  pointer-events: none;
}

.nodes-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
  align-items: center;
  gap: 72px;
}

.nodes-hero-copy,
.region-index {
  min-width: 0;
}

.nodes-hero-copy h1 {
  max-width: 720px;
  margin-top: 22px;
  margin-bottom: 22px;
}

.nodes-hero-lede {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 18px;
  line-height: 1.75;
}

.nodes-hero-copy .button-row {
  margin-top: 28px;
}

.nodes-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 24px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--color-border);
  list-style: none;
}

.nodes-facts li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 650;
}

.region-index {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  box-shadow: var(--shadow-card);
}

.region-index-head {
  display: flex;
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel);
}

.region-index-head .section-kicker {
  margin-bottom: 4px;
}

.region-index-head strong {
  display: block;
  font-size: 16px;
}

.region-index-head > .mono {
  color: var(--color-accent-dark);
  font-size: 20px;
  font-weight: 800;
}

.region-cards {
  display: grid;
}

.region-card {
  display: grid;
  min-width: 0;
  min-height: 78px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.region-card:hover {
  background: var(--color-panel);
  color: var(--color-accent-dark);
}

.region-marker {
  display: inline-flex;
  width: 38px;
  height: 30px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font: 750 11px/1 var(--font-mono);
}

.region-marker.is-success {
  background: var(--color-panel);
  color: var(--color-success);
}

.region-marker.is-warning {
  background: var(--color-panel-strong);
  color: var(--color-warning);
}

.region-card b,
.region-card small {
  display: block;
}

.region-card b {
  margin-bottom: 2px;
  color: var(--color-text);
  font-size: 14px;
}

.region-card small {
  overflow-wrap: anywhere;
  color: var(--color-muted);
  font-size: 12px;
}

.region-index-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding: 12px 20px;
  background: var(--color-panel);
  color: var(--color-muted);
  font-size: 11px;
}

.nodes-document {
  position: relative;
}

.nodes-document > .toc-tabs {
  padding-inline: var(--gutter);
}

.route-note-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 34px;
}

.route-note-grid .callout {
  min-width: 0;
  margin-block: 0;
}

.route-note-grid .callout p {
  margin-bottom: 0;
}

.route-section + .route-section {
  margin-top: 48px;
}

.route-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 16px;
}

.route-section-head > div {
  min-width: 0;
}

.route-section-head h3 {
  margin-bottom: 7px;
}

.route-section-head p {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--color-muted);
}

.route-section-head > .chip {
  flex: 0 0 auto;
}

.route-table td:last-child {
  color: var(--color-muted);
}

.line-type-layout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.line-type-card {
  min-width: 0;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.line-type-card:nth-child(2) {
  background: var(--color-panel);
}

.line-type-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 22px;
}

.line-type-card h3 {
  font-size: 22px;
}

.line-type-card > p {
  color: var(--color-muted);
}

.type-facts {
  display: grid;
  gap: 0;
  margin: 24px 0 0;
  border-top: 1px solid var(--color-border);
}

.type-facts div {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 14px;
  padding-block: 12px;
  border-bottom: 1px solid var(--color-border);
}

.type-facts dt {
  color: var(--color-muted);
  font: 600 11px/1.6 var(--font-mono);
}

.type-facts dd {
  margin: 0;
  font-size: 13px;
}

.use-case-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--color-border);
}

.use-case {
  display: grid;
  min-width: 0;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  padding: 28px 26px 28px 0;
  border-bottom: 1px solid var(--color-border);
}

.use-case:nth-child(even) {
  padding-right: 0;
  padding-left: 26px;
  border-left: 1px solid var(--color-border);
}

.use-icon {
  display: inline-flex;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text);
}

.use-case h3 {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 20px;
}

.use-case p {
  color: var(--color-muted);
}

.use-case p:last-child {
  margin-bottom: 0;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.method-card {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.method-label {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--color-accent-dark);
  font-size: 12px;
  font-weight: 700;
}

.method-card h3 {
  font-size: 19px;
}

.method-card p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.method-callout {
  margin-top: 28px;
  margin-bottom: 0;
}

.method-callout p {
  margin-bottom: 0;
}

.method-callout a {
  color: var(--color-accent-dark);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.coverage-layout {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
  align-items: start;
  gap: 70px;
}

.coverage-copy {
  min-width: 0;
}

.coverage-copy > p:not(.section-kicker) {
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.78;
}

.coverage-actions {
  margin-top: 28px;
}

.coverage-badges {
  display: grid;
  min-width: 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.coverage-badge {
  display: flex;
  min-width: 0;
  min-height: 82px;
  flex-direction: column;
  justify-content: space-between;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}

.coverage-badge:nth-child(3n + 2) {
  background: var(--color-bg);
}

.coverage-badge b {
  overflow-wrap: anywhere;
  font-size: 14px;
}

.coverage-badge small {
  color: var(--color-muted);
  font: 11px/1.4 var(--font-mono);
}

@media (max-width: 1024px) {
  .nodes-hero-grid,
  .coverage-layout {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .region-index {
    max-width: 760px;
  }

  .line-type-layout {
    grid-template-columns: 1fr;
  }

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

  .coverage-badges {
    max-width: 760px;
  }
}

@media (max-width: 768px) {
  .nodes-hero {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .nodes-hero::before {
    top: 0;
    right: -35%;
    width: 90%;
    height: 48%;
  }

  .nodes-hero-lede {
    font-size: 16px;
  }

  .route-note-grid,
  .use-case-list {
    grid-template-columns: 1fr;
  }

  .use-case {
    padding-right: 0;
  }

  .use-case:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }

  .route-section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

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

@media (max-width: 640px) {
  .nodes-hero-grid {
    gap: 34px;
  }

  .nodes-facts {
    align-items: flex-start;
    flex-direction: column;
  }

  .region-index-head {
    padding-inline: 14px;
  }

  .region-card {
    padding-inline: 14px;
  }

  .region-index-foot {
    padding-inline: 14px;
  }

  .route-note-grid {
    gap: 12px;
  }

  .line-type-card {
    padding: 20px;
  }

  .use-case {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .type-facts div {
    grid-template-columns: 1fr;
    gap: 3px;
  }

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