.nodes-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-canvas);
}

.nodes-hero::before {
  position: absolute;
  top: -280px;
  right: -190px;
  width: 860px;
  height: 760px;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(closest-side, color-mix(in srgb, var(--color-sunrise) 74%, var(--color-transparent)), var(--color-transparent)),
    radial-gradient(closest-side at 72% 68%, color-mix(in srgb, var(--color-rose) 45%, var(--color-transparent)), var(--color-transparent));
}

.nodes-hero-grid {
  position: relative;
  display: grid;
  min-height: 650px;
  grid-template-columns: minmax(0, 0.92fr) minmax(440px, 0.78fr);
  align-items: center;
  gap: 76px;
  padding-top: 82px;
  padding-bottom: 82px;
}

.nodes-hero-copy {
  position: relative;
  z-index: 2;
}

.nodes-hero-copy h1 {
  max-width: 690px;
  margin-top: 22px;
}

.nodes-lead {
  max-width: 650px;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 17px;
}

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

.nodes-index-panel {
  position: relative;
  z-index: 2;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-surface) 94%, var(--color-canvas));
  box-shadow: var(--shadow-card);
  transform: rotate(1deg);
}

.nodes-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.nodes-panel-head h2 {
  margin: 4px 0 0;
  font-size: 28px;
}

.nodes-panel-kicker,
.network-region-code,
.line-type-kicker {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.nodes-panel-head .status-dot {
  margin-top: 9px;
}

.nodes-region-stack {
  display: grid;
  gap: 7px;
  padding-top: 16px;
}

.nodes-region-stack a {
  display: grid;
  min-height: 68px;
  grid-template-columns: 42px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 13px;
  padding: 10px 12px;
  border: 1px solid var(--color-transparent);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.nodes-region-stack a:hover {
  border-color: var(--color-border);
  background: var(--color-surface-warm);
  transform: translateX(2px);
}

.nodes-region-stack a > svg {
  width: 18px;
  height: 18px;
  color: var(--color-brand-deep);
}

.nodes-region-stack strong,
.nodes-region-stack small {
  display: block;
}

.nodes-region-stack strong {
  color: var(--color-text);
  font-size: 15px;
}

.nodes-region-stack small {
  margin-top: 2px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.region-symbol {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--color-brand) 36%, var(--color-border));
  border-radius: var(--radius-pill);
  color: var(--color-brand-deep);
  background: color-mix(in srgb, var(--color-brand) 8%, var(--color-surface));
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.nodes-panel-note {
  margin-top: 17px;
  margin-bottom: 0;
  padding-top: 17px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 12px;
}

.nodes-ticker-wrap {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.nodes-ticker-wrap .motion-ticker-track {
  gap: 0;
}

.nodes-ticker-wrap .motion-ticker-track span {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  padding-inline: 28px;
  border-right: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
}

.network-group {
  padding-top: 42px;
  scroll-margin-top: calc(var(--toc-offset) + 56px);
}

.network-group + .network-group {
  margin-top: 42px;
  border-top: 1px solid var(--color-border);
}

.network-group-head {
  display: grid;
  grid-template-columns: minmax(200px, 0.55fr) minmax(0, 1fr);
  align-items: end;
  gap: 42px;
  margin-bottom: 22px;
}

.network-group-head h3 {
  margin: 5px 0 0;
  font-size: 29px;
}

.network-group-head p {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.network-table td:first-child {
  white-space: nowrap;
}

.line-label {
  display: inline-flex;
  max-width: 100%;
  min-height: 27px;
  align-items: center;
  padding-inline: 10px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  background: var(--color-surface);
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: nowrap;
}

.line-label.is-premium {
  border-color: color-mix(in srgb, var(--color-brand) 46%, var(--color-border));
  color: var(--color-brand-deep);
  background: color-mix(in srgb, var(--color-brand) 8%, var(--color-surface));
}

.line-label.is-direct {
  border-color: color-mix(in srgb, var(--color-blue) 35%, var(--color-border));
  color: var(--color-blue);
  background: color-mix(in srgb, var(--color-blue) 7%, var(--color-surface));
}

.media-state {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 12px;
  white-space: nowrap;
}

.media-state.is-supported {
  color: var(--color-positive);
}

.network-group .callout {
  margin-top: 22px;
}

.nodes-dark-head {
  position: relative;
  z-index: 2;
}

.nodes-dark-eyebrow {
  border-color: var(--color-dark-line);
  color: var(--color-dark-muted);
  background: color-mix(in srgb, var(--color-surface) 5%, var(--color-ink-dark));
}

.line-type-ledger {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--color-dark-line);
}

.line-type-row {
  display: grid;
  grid-template-columns: minmax(250px, 0.7fr) minmax(0, 1.3fr);
  gap: 54px;
  padding-top: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-dark-line);
}

.line-type-title {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.line-type-title h3 {
  margin-top: 5px;
  margin-bottom: 0;
}

.line-type-mark {
  display: grid;
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--color-dark-line);
  border-radius: var(--radius-pill);
  color: var(--color-brand);
  font-family: var(--font-mono);
  font-size: 12px;
}

.line-type-kicker {
  color: var(--color-dark-muted);
}

.line-type-content {
  display: flex;
  align-items: flex-start;
  gap: 15px;
}

.line-type-content > .status-dot {
  margin-top: 9px;
}

.line-type-content p {
  font-size: 16px;
}

.line-type-content p + p {
  margin-top: 16px;
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
}

.use-case-card {
  grid-column: span 2;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-low);
}

.use-case-card:nth-child(4),
.use-case-card:nth-child(5) {
  grid-column: span 3;
}

.use-case-head {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 18px;
}

.use-case-head h3 {
  margin: 0;
  font-size: 22px;
}

.use-case-code {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding-inline: 10px;
  border: 1px solid color-mix(in srgb, var(--color-brand) 38%, var(--color-border));
  border-radius: var(--radius-pill);
  color: var(--color-brand-deep);
  background: color-mix(in srgb, var(--color-brand) 7%, var(--color-surface));
  font-family: var(--font-mono);
  font-size: 10px;
}

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

.use-case-card p + p {
  margin-top: 14px;
}

.nodes-method {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-warm);
}

.nodes-method-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr);
  gap: 76px;
}

.nodes-method-intro {
  align-self: start;
}

.nodes-method-intro h2 {
  margin-top: 20px;
}

.nodes-method-intro p {
  color: var(--color-text-muted);
  font-size: 16px;
}

.route-steps {
  display: grid;
  gap: 0;
  padding: 0;
  list-style: none;
  counter-reset: route-step;
}

.route-steps li {
  position: relative;
  min-height: 128px;
  padding: 0 0 30px 66px;
  counter-increment: route-step;
}

.route-steps li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--color-brand);
  border-radius: var(--radius-pill);
  content: counter(route-step);
  color: var(--color-surface);
  background: linear-gradient(180deg, var(--color-brand), var(--color-brand-deep));
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  box-shadow: var(--shadow-button);
}

.route-steps li:not(:last-child)::after {
  position: absolute;
  top: 48px;
  bottom: 6px;
  left: 20px;
  width: 1px;
  content: "";
  background: var(--color-border);
}

.route-steps h3 {
  margin-bottom: 8px;
  font-size: 21px;
}

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

.nodes-fact-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 60px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-low);
}

.nodes-fact-strip > div {
  min-height: 112px;
  padding: 22px;
}

.nodes-fact-strip > div + div {
  border-left: 1px solid var(--color-border);
}

.nodes-fact-label {
  display: block;
  margin-bottom: 8px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.nodes-fact-strip strong {
  display: block;
  color: var(--color-text);
  line-height: 1.5;
}

.nodes-note {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px;
  margin-top: 24px;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
}

.nodes-note h2 {
  margin-bottom: 12px;
  font-size: 28px;
}

.nodes-note p {
  max-width: 850px;
  color: var(--color-text-muted);
}

.nodes-note .btn {
  white-space: nowrap;
}

@media (max-width: 1120px) {
  .nodes-hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 44px;
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .nodes-index-panel {
    max-width: 760px;
    transform: none;
  }

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

  .use-case-card,
  .use-case-card:nth-child(4),
  .use-case-card:nth-child(5) {
    grid-column: auto;
  }

  .use-case-card:last-child {
    grid-column: 1 / -1;
  }

  .nodes-method-grid {
    gap: 48px;
  }

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

  .nodes-fact-strip > div + div {
    border-left: 0;
  }

  .nodes-fact-strip > div:nth-child(even) {
    border-left: 1px solid var(--color-border);
  }

  .nodes-fact-strip > div:nth-child(n + 3) {
    border-top: 1px solid var(--color-border);
  }
}

@media (max-width: 768px) {
  .nodes-hero-grid {
    padding-top: 56px;
    padding-bottom: 58px;
  }

  .nodes-hero::before {
    top: -90px;
    right: -360px;
  }

  .network-group-head,
  .line-type-row,
  .nodes-method-grid {
    grid-template-columns: 1fr;
  }

  .network-group-head {
    align-items: start;
    gap: 14px;
  }

  .line-type-row {
    gap: 24px;
  }

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

  .use-case-card:last-child {
    grid-column: auto;
  }

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

  .nodes-note .btn {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .nodes-index-panel {
    padding: 18px;
  }

  .nodes-region-stack a {
    grid-template-columns: 38px minmax(0, 1fr) 16px;
    gap: 10px;
    padding-inline: 7px;
  }

  .region-symbol {
    width: 38px;
    height: 38px;
  }

  .network-group {
    padding-top: 32px;
  }

  .use-case-card {
    padding: 22px;
  }

  .line-type-row {
    padding-top: 32px;
    padding-bottom: 32px;
  }

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

  .nodes-fact-strip > div:nth-child(even) {
    border-left: 0;
  }

  .nodes-fact-strip > div:nth-child(n + 2) {
    border-top: 1px solid var(--color-border);
  }

  .nodes-note {
    padding: 23px;
  }

  .route-steps li {
    padding-left: 58px;
  }
}