.nodes-hero {
  position: relative;
  overflow-x: clip;
  background:
    radial-gradient(circle at 18% 28%, var(--color-accent-soft), transparent 30%),
    radial-gradient(circle at 84% 68%, var(--color-info-soft), transparent 24%),
    var(--color-bg);
}

.nodes-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 38px 38px;
  content: "";
  mask-image: linear-gradient(to bottom, var(--color-text), transparent 88%);
  pointer-events: none;
}

.nodes-hero-shell {
  position: relative;
  z-index: 1;
  min-height: calc(820px - var(--header-height));
  padding-top: 72px;
  padding-bottom: 92px;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(500px, 1.08fr);
  align-items: center;
  gap: 76px;
}

.nodes-hero-copy h1 {
  max-width: 650px;
  margin-top: 20px;
  color: var(--color-text);
}

.nodes-hero-copy h1 .keyword-lock {
  color: var(--color-accent);
}

.nodes-lead {
  max-width: 650px;
  margin-bottom: 28px;
  color: var(--color-muted);
  font-size: 18px;
  line-height: 1.85;
}

.nodes-lead strong {
  color: var(--color-accent-dark);
}

.nodes-trust {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.region-board {
  position: relative;
  padding: 24px;
  border-radius: var(--radius-window);
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
}

.region-board::before {
  position: absolute;
  z-index: -1;
  inset: 24px -18px -18px 22px;
  border-radius: var(--radius-window);
  background: var(--color-panel-soft);
  box-shadow: var(--shadow-float);
  content: "";
  transform: rotate(3deg);
}

.region-board-head {
  min-height: 46px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.region-board-title {
  color: var(--color-muted);
  font: 700 12px var(--font-mono);
  letter-spacing: 0.12em;
}

.region-board-mark {
  width: 46px;
  height: 10px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.region-board-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.region-tile {
  min-height: 174px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-radius: var(--radius-large);
}

.region-tile-accent {
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
}

.region-tile-info {
  color: var(--color-flag-blue-deep);
  background: var(--color-info-soft);
}

.region-tile-success {
  color: var(--color-flag-green);
  background: var(--color-success-soft);
}

.region-tile-warning {
  color: var(--color-accent-dark);
  background: var(--color-warning-soft);
}

.region-code {
  margin-bottom: auto;
  font: 750 11px var(--font-mono);
  letter-spacing: 0.08em;
}

.region-tile strong {
  font-family: var(--font-display);
  font-size: 27px;
  line-height: 1.2;
}

.region-tile span:last-child {
  margin-top: 8px;
  color: var(--color-muted);
  font-size: 11px;
}

.route-thread {
  position: absolute;
  right: 44px;
  bottom: -24px;
  left: 44px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.route-thread::before {
  position: absolute;
  right: 0;
  left: 0;
  height: 2px;
  background: var(--color-accent);
  content: "";
  opacity: 0.42;
}

.route-thread span {
  position: relative;
  width: 12px;
  height: 12px;
  border: 3px solid var(--color-panel);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: var(--shadow-float);
}

.route-directory {
  display: grid;
  gap: 48px;
}

.route-group {
  min-width: 0;
}

.route-group-heading {
  margin-bottom: 18px;
  display: grid;
  grid-template-columns: minmax(240px, 0.66fr) minmax(0, 1.34fr);
  align-items: end;
  gap: 36px;
}

.route-group-heading > div {
  display: flex;
  align-items: center;
  gap: 14px;
}

.route-group-heading h3 {
  margin-bottom: 0;
}

.route-group-heading p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.region-index {
  min-width: 58px;
  min-height: 34px;
  padding: 0 10px;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  font: 750 10px var(--font-mono);
}

.type-browser {
  display: grid;
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 1.66fr);
  align-items: start;
  gap: 24px;
}

.type-index {
  position: sticky;
  top: var(--toc-offset);
  padding: 12px;
  display: grid;
  gap: 6px;
  border-radius: var(--radius-large);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.type-index a {
  min-height: 72px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: var(--radius-medium);
  color: var(--color-muted);
  transition: color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

.type-index a:hover {
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  transform: translateX(4px);
}

.type-index span {
  font: 700 10px var(--font-mono);
  letter-spacing: 0.08em;
}

.type-index strong {
  margin-top: 3px;
  color: var(--color-text);
  font-size: 15px;
}

.type-canvas {
  padding: clamp(24px, 5vw, 54px);
  display: grid;
  gap: 0;
  border-radius: var(--radius-window);
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
}

.type-detail {
  padding-top: 44px;
  padding-bottom: 44px;
  scroll-margin-top: var(--toc-offset);
  border-bottom: 1px solid var(--color-border);
}

.type-detail:first-child {
  padding-top: 0;
}

.type-detail:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.type-detail-head {
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.type-detail-head h3 {
  margin-bottom: 3px;
}

.type-detail-head p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 13px;
}

.type-symbol {
  width: 74px;
  height: 74px;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border-radius: var(--radius-medium);
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  font: 750 11px var(--font-mono);
}

.type-detail > p {
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.9;
}

.type-note {
  margin-top: 24px;
  padding: 18px 20px;
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 18px;
  border-radius: var(--radius-medium);
  color: var(--color-muted);
  background: var(--color-panel-soft);
}

.type-note strong {
  color: var(--color-accent-dark);
}

.scenario-list {
  border-radius: var(--radius-window);
  overflow: clip;
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
}

.scenario-row {
  padding: clamp(26px, 5vw, 52px);
  display: grid;
  grid-template-columns: minmax(220px, 0.68fr) minmax(0, 1.32fr);
  gap: 54px;
  border-bottom: 1px solid var(--color-border);
}

.scenario-row:last-child {
  border-bottom: 0;
}

.scenario-label span {
  min-height: 30px;
  margin-bottom: 18px;
  padding: 0 11px;
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  font-size: 11px;
  font-weight: 750;
}

.scenario-label h3 {
  margin-bottom: 0;
}

.scenario-copy p {
  color: var(--color-muted);
  line-height: 1.9;
}

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

.method-card {
  min-height: 260px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-large);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.method-card:nth-child(2),
.method-card:nth-child(3) {
  background: var(--color-accent-soft);
}

.method-key {
  margin-bottom: auto;
  color: var(--color-accent-dark);
  font: 750 11px var(--font-mono);
  letter-spacing: 0.1em;
}

.method-card h3 {
  margin-top: 34px;
  font-size: 23px;
}

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

.selection-summary {
  margin-top: 24px;
  padding: clamp(28px, 5vw, 48px);
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  align-items: center;
  gap: 46px;
  border-radius: var(--radius-large);
  color: var(--color-white-muted);
  background: var(--color-text);
  box-shadow: var(--shadow-window);
}

.selection-summary h3 {
  margin: 18px 0 0;
  color: var(--color-panel);
}

.selection-summary p {
  margin-bottom: 0;
  color: var(--color-white-muted);
}

.facts-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  align-items: center;
  gap: 70px;
}

.facts-copy p {
  color: var(--color-muted);
  line-height: 1.9;
}

.facts-stack {
  padding: 14px;
  display: grid;
  gap: 6px;
  border-radius: var(--radius-large);
  background: var(--color-panel-soft);
}

.fact-line {
  min-height: 68px;
  padding: 14px 18px;
  display: grid;
  grid-template-columns: minmax(110px, 0.4fr) minmax(0, 1.6fr);
  align-items: center;
  gap: 20px;
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.fact-line strong {
  color: var(--color-text);
  font-size: 14px;
}

.fact-line span {
  min-width: 0;
  color: var(--color-muted);
  font: 12px/1.6 var(--font-mono);
  overflow-wrap: anywhere;
}

@media (max-width: 1120px) {
  .nodes-hero-shell {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 58px;
  }

  .nodes-hero-copy {
    max-width: 780px;
  }

  .region-board {
    width: min(100%, 720px);
  }

  .facts-panel {
    grid-template-columns: 1fr;
    gap: 42px;
  }
}

@media (max-width: 860px) {
  .route-group-heading,
  .scenario-row,
  .selection-summary {
    grid-template-columns: 1fr;
  }

  .route-group-heading,
  .scenario-row {
    gap: 20px;
  }

  .selection-summary {
    gap: 24px;
  }

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

  .type-index {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .type-index a:hover {
    transform: translateY(-2px);
  }
}

@media (max-width: 640px) {
  .nodes-hero-shell {
    padding-top: 42px;
    padding-bottom: 72px;
  }

  .nodes-lead {
    font-size: 16px;
  }

  .region-board {
    padding: 16px;
  }

  .region-board::before,
  .route-thread {
    display: none;
  }

  .region-board-grid {
    grid-template-columns: 1fr;
  }

  .region-tile {
    min-height: 136px;
    padding: 20px;
  }

  .route-group-heading > div {
    align-items: flex-start;
  }

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

  .type-index a {
    min-height: 58px;
  }

  .type-canvas {
    padding: 22px;
  }

  .type-detail-head {
    align-items: flex-start;
  }

  .type-symbol {
    width: 58px;
    height: 58px;
  }

  .type-note {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .scenario-row {
    padding: 24px 22px;
  }

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

  .method-card {
    min-height: 230px;
    padding: 24px;
  }

  .selection-summary {
    padding: 28px 22px;
  }

  .fact-line {
    grid-template-columns: 1fr;
    gap: 3px;
  }
}