:root {
  --nodes-hero-space: clamp(72px, 9vw, 118px);
  --nodes-copy-size: 18px;
  --nodes-small-size: 12px;
  --nodes-label-size: 11px;
  --nodes-panel-gap: clamp(28px, 5vw, 72px);
  --nodes-card-space: clamp(24px, 3.5vw, 38px);
  --nodes-row-space: clamp(24px, 4vw, 42px);
}

.nodes-hero {
  position: relative;
  overflow-x: clip;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-page);
  background-image: linear-gradient(to right, var(--color-page), var(--color-surface-soft));
}

.nodes-hero::after {
  position: absolute;
  inset: 0 0 0 auto;
  width: 42%;
  background-color: var(--color-ink);
  background-image: radial-gradient(var(--texture-dot) 1px, var(--color-transparent) 1.5px);
  background-size: 16px 16px;
  content: "";
}

.nodes-hero-grid {
  position: relative;
  z-index: 2;
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  align-items: center;
  gap: var(--nodes-panel-gap);
  padding-top: var(--nodes-hero-space);
  padding-bottom: var(--nodes-hero-space);
}

.nodes-hero-copy {
  max-width: 700px;
}

.nodes-hero-copy .badge {
  margin-bottom: 22px;
}

.nodes-hero-copy h1 {
  max-width: 10em;
  margin-bottom: 22px;
}

.nodes-hero-lead {
  max-width: 39em;
  margin-bottom: 28px;
  color: var(--color-text-muted);
  font-size: var(--nodes-copy-size);
  line-height: 1.8;
}

.nodes-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.nodes-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topology-board {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-lg);
  background: var(--color-ink-panel);
  box-shadow: var(--shadow-window);
  color: var(--color-on-ink);
}

.topology-board::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-on-ink) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--line-on-ink) 1px, var(--color-transparent) 1px);
  background-size: 32px 32px;
  opacity: 0.28;
  content: "";
  pointer-events: none;
}

.topology-head,
.topology-core,
.topology-route,
.topology-foot {
  position: relative;
  z-index: 1;
}

.topology-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line-on-ink);
  background: var(--color-ink-raised);
  padding: 13px 18px;
  color: var(--color-on-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--nodes-label-size);
  letter-spacing: 0.08em;
}

.topology-core {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 20px 14px;
  border: 1px solid var(--line-accent-soft);
  border-radius: var(--radius-md);
  background: var(--fill-ink-soft);
  padding: 16px;
  color: var(--color-on-ink);
  font-weight: 700;
}

.topology-core-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  flex: none;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 900;
}

.topology-route {
  display: grid;
  grid-template-columns: auto minmax(76px, auto) minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  margin-inline: 20px;
  border-top: 1px solid var(--line-on-ink);
  padding: 15px 4px;
}

.topology-route i {
  width: 9px;
  height: 9px;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-xs);
  background: var(--color-ink-panel);
  transform: rotate(45deg);
}

.topology-route span {
  color: var(--color-on-ink);
  font-weight: 700;
}

.topology-route b {
  color: var(--color-on-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--nodes-label-size);
  font-weight: 500;
  overflow-wrap: anywhere;
}

.topology-foot {
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--line-on-ink);
  background: var(--fill-ink-faint);
  padding: 15px 20px;
  color: var(--color-on-ink-muted);
  font-size: 13px;
}

.nodes-table-note {
  margin-top: 22px;
}

.route-type-section {
  position: relative;
  background-image: radial-gradient(var(--texture-dot) 1px, var(--color-transparent) 1.5px);
  background-size: 16px 16px;
}

.route-type-section .section-head {
  max-width: 800px;
}

.route-eyebrow {
  display: inline-flex;
  margin-bottom: 18px;
  border: 1px solid var(--line-accent-soft);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  padding: 5px 13px;
  font-family: var(--font-mono);
  font-size: var(--nodes-label-size);
  letter-spacing: 0.08em;
}

.route-classes {
  display: grid;
  gap: 14px;
}

.route-class {
  display: grid;
  grid-template-columns: minmax(170px, 0.5fr) minmax(0, 1fr) minmax(230px, 0.7fr);
  gap: clamp(22px, 4vw, 54px);
  align-items: start;
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-md);
  background: var(--color-ink-panel);
  padding: var(--nodes-card-space);
}

.route-class-head {
  min-width: 0;
}

.route-class-code {
  display: inline-flex;
  margin-bottom: 16px;
  border: 1px solid var(--line-accent-soft);
  border-radius: var(--radius-xs);
  color: var(--color-accent);
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: var(--nodes-label-size);
  letter-spacing: 0.1em;
}

.route-class h3 {
  color: var(--color-on-ink);
}

.route-class > p {
  margin-bottom: 0;
  color: var(--color-on-ink-muted);
}

.route-fit {
  display: grid;
  gap: 14px;
  margin: 0;
}

.route-fit div {
  border-left: 2px solid var(--color-accent);
  padding-left: 14px;
}

.route-fit dt {
  margin-bottom: 4px;
  color: var(--color-on-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--nodes-label-size);
  letter-spacing: 0.08em;
}

.route-fit dd {
  margin: 0;
  color: var(--color-on-ink);
  font-size: 14px;
}

.selection-section {
  background: var(--color-page);
}

.use-case-list {
  border-top: 1px solid var(--color-border);
}

.use-case-row {
  display: grid;
  grid-template-columns: minmax(210px, 0.55fr) minmax(0, 1.45fr);
  gap: var(--nodes-panel-gap);
  border-bottom: 1px solid var(--color-border);
  padding-top: var(--nodes-row-space);
  padding-bottom: var(--nodes-row-space);
}

.use-case-title {
  position: relative;
  padding-left: 18px;
}

.use-case-title::before {
  position: absolute;
  inset: 4px auto 4px 0;
  width: 3px;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  content: "";
}

.use-case-label {
  display: block;
  margin-bottom: 9px;
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: var(--nodes-label-size);
  letter-spacing: 0.1em;
}

.use-case-title h3 {
  margin-bottom: 0;
}

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

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

.route-workflow-section {
  background: var(--color-surface-soft);
}

.route-workflow {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: var(--nodes-panel-gap);
  align-items: start;
}

.route-workflow-intro {
  position: sticky;
  top: calc(var(--header-height) + 20px);
}

.route-workflow-intro p {
  color: var(--color-text-muted);
}

.workflow-notes {
  display: grid;
  gap: 10px;
}

.workflow-notes article {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: 24px;
}

.workflow-notes h3 {
  font-size: 20px;
}

.workflow-notes p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.coverage-section {
  background: var(--color-page);
}

.region-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 48px;
}

.region-wall span {
  max-width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-surface);
  color: var(--color-text-muted);
  padding: 9px 13px;
  font-family: var(--font-mono);
  font-size: var(--nodes-small-size);
  overflow-wrap: anywhere;
}

.region-wall span:nth-child(3n + 1) {
  border-color: var(--line-accent-soft);
  background: var(--color-surface-soft);
  color: var(--color-accent-strong);
}

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

.coverage-copy article {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: var(--nodes-card-space);
}

.coverage-copy p {
  color: var(--color-text-muted);
}

.coverage-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

@media (max-width: 1080px) {
  .nodes-hero::after {
    display: none;
  }

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

  .topology-board {
    width: min(620px, 100%);
    margin-inline: auto;
  }

  .route-class {
    grid-template-columns: minmax(150px, 0.45fr) minmax(0, 1fr);
  }

  .route-fit {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .nodes-hero-grid {
    min-height: auto;
    padding-top: 54px;
    padding-bottom: 64px;
  }

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

  .nodes-hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .nodes-hero-actions .button {
    width: 100%;
  }

  .route-class,
  .use-case-row,
  .route-workflow,
  .coverage-copy {
    grid-template-columns: 1fr;
  }

  .route-fit {
    grid-column: auto;
  }

  .route-workflow-intro {
    position: static;
  }
}

@media (max-width: 640px) {
  .topology-route {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .topology-route b {
    grid-column: 2;
  }

  .route-fit {
    grid-template-columns: 1fr;
  }

  .coverage-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .coverage-actions .button {
    width: 100%;
  }
}