.nodes-hero {
  padding-top: clamp(58px, 8vw, 108px);
  padding-bottom: clamp(66px, 9vw, 118px);
}

.nodes-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  align-items: center;
  gap: clamp(42px, 7vw, 88px);
}

.nodes-hero__copy {
  min-width: 0;
}

.nodes-hero h1 {
  max-width: 720px;
  margin-top: 22px;
  font-size: clamp(48px, 5vw, 68px);
  font-weight: 430;
}

.nodes-hero__lead {
  max-width: 680px;
  font-size: 17px;
  line-height: 1.85;
}

.nodes-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.nodes-hero .fact-capsules {
  justify-content: flex-start;
}

.nodes-atlas {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-lg);
  background: var(--color-panel-raised);
  box-shadow: var(--shadow-panel);
}

.nodes-atlas__chrome {
  display: flex;
  min-height: 48px;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--color-edge-soft);
  color: var(--color-text-muted);
  background: var(--color-panel-chrome);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.nodes-atlas__signal {
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent);
}

.nodes-atlas__scope {
  margin-left: auto;
  color: var(--color-accent);
}

.nodes-atlas__field {
  padding: 14px 18px 4px;
}

.nodes-atlas__field svg {
  width: 100%;
  height: auto;
}

.atlas-grid {
  fill: none;
  stroke: var(--color-edge-soft);
  stroke-width: 1;
}

.atlas-route {
  fill: none;
  stroke-linecap: round;
}

.atlas-route--main {
  stroke: var(--color-accent);
  stroke-width: 3;
}

.atlas-route--branch {
  stroke: var(--color-border);
  stroke-width: 2;
  stroke-dasharray: 7 8;
}

.atlas-node {
  fill: var(--color-accent);
  stroke: var(--color-panel-raised);
  stroke-width: 4;
}

.atlas-halo {
  fill: var(--route-halo);
}

.atlas-halo--terminal {
  transform-box: fill-box;
  transform-origin: center;
  animation: nodes-terminal-pulse 3.4s ease-in-out infinite;
}

.atlas-label rect {
  fill: var(--color-panel);
  stroke: var(--color-border);
}

.atlas-label text {
  fill: var(--color-text);
  font-family: var(--font-body);
  font-size: 13px;
  text-anchor: middle;
}

.nodes-atlas__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  padding: 10px 22px 22px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.nodes-atlas__legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.nodes-atlas__legend i {
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

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

.nodes-content > .toc-tabs {
  top: 12px;
}

.route-region {
  margin-top: 40px;
}

.route-region__head {
  display: grid;
  grid-template-columns: minmax(220px, 0.65fr) minmax(0, 1.35fr);
  align-items: end;
  gap: 28px;
  margin-bottom: 18px;
}

.route-region__head h3 {
  margin-bottom: 0;
}

.route-region__head p {
  margin-bottom: 0;
  font-size: 14px;
}

.route-region__mark {
  display: block;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.11em;
}

.route-region + .route-region {
  padding-top: 18px;
  border-top: 1px solid var(--color-edge-soft);
}

.nodes-content .callout {
  margin-top: 30px;
}

.line-type-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.line-type-card {
  min-width: 0;
  padding: 28px;
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  transform-style: preserve-3d;
}

.line-type-card--featured {
  border-color: var(--color-accent-strong);
  background: var(--color-panel-raised);
}

.line-type-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  color: var(--color-accent);
}

.line-type-card h3 {
  font-size: 25px;
}

.line-type-card p {
  font-size: 15px;
}

.type-comparison {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 36px;
  margin-top: 28px;
  padding: clamp(28px, 5vw, 46px);
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-xl);
  background: var(--color-panel-raised);
  box-shadow: var(--shadow-card);
}

.type-comparison__intro h3 {
  font-size: 28px;
}

.type-comparison__points {
  display: grid;
  gap: 18px;
}

.type-comparison__points > div {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-edge-soft);
}

.type-comparison__points > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.type-comparison__points p {
  margin-top: 4px;
  font-size: 14px;
}

.use-case-list {
  display: grid;
  gap: 14px;
}

.use-case {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 28px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
}

.use-case__index {
  padding-top: 5px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.use-case h3 {
  font-size: 25px;
}

.use-case p {
  font-size: 15px;
}

.selection-process {
  position: relative;
  display: grid;
  gap: 0;
  max-width: 940px;
}

.selection-process::before {
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 10px;
  width: 1px;
  background: var(--color-border);
  content: "";
}

.selection-process article {
  position: relative;
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 24px;
  padding-bottom: 34px;
}

.selection-process article:last-child {
  padding-bottom: 0;
}

.selection-process__dot {
  position: relative;
  z-index: 1;
  width: 21px;
  height: 21px;
  margin-top: 5px;
  border: 5px solid var(--color-panel);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 14px var(--color-accent-strong);
}

.selection-process h3 {
  margin-bottom: 8px;
  font-size: 23px;
}

.selection-process p {
  max-width: 820px;
}

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

.coverage-notes .panel {
  padding: 30px;
}

.coverage-notes h3 {
  font-size: 23px;
}

.nodes-closing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 36px;
  margin-top: 42px;
  padding: clamp(30px, 5vw, 52px);
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-xl);
  background: var(--color-panel-raised);
  box-shadow: var(--shadow-panel);
}

.nodes-closing h2 {
  margin-top: 18px;
  margin-bottom: 12px;
  font-size: clamp(30px, 4vw, 44px);
}

.nodes-closing__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

@keyframes nodes-terminal-pulse {
  0%,
  100% {
    opacity: 0.12;
    transform: scale(1);
  }

  50% {
    opacity: 0.3;
    transform: scale(1.28);
  }
}

@media (max-width: 1040px) {
  .nodes-hero__inner {
    grid-template-columns: 1fr;
  }

  .nodes-hero__copy {
    max-width: 820px;
  }

  .nodes-atlas {
    width: 100%;
    max-width: 820px;
  }

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

@media (max-width: 820px) {
  .route-region__head,
  .type-comparison,
  .nodes-closing {
    grid-template-columns: 1fr;
  }

  .coverage-notes {
    grid-template-columns: 1fr;
  }

  .nodes-closing__actions {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .nodes-hero {
    padding-top: 48px;
    padding-bottom: 68px;
  }

  .nodes-hero h1 {
    font-size: clamp(30px, 9vw, 40px);
  }

  .nodes-hero__lead {
    font-size: 15px;
  }

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

  .nodes-hero__actions .btn-primary,
  .nodes-hero__actions .btn-secondary {
    width: 100%;
  }

  .nodes-atlas__field {
    padding-inline: 8px;
  }

  .atlas-label {
    display: none;
  }

  .nodes-atlas__legend {
    gap: 9px 14px;
    padding-inline: 16px;
  }

  .route-region__head {
    gap: 10px;
  }

  .line-type-card {
    padding: 24px;
    transform: none;
  }

  .use-case {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .use-case__index {
    padding-top: 0;
  }

  .type-comparison,
  .nodes-closing {
    padding: 26px;
  }

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

  .nodes-closing__actions .btn-primary,
  .nodes-closing__actions .btn-secondary {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .atlas-halo--terminal {
    animation: none;
  }
}