.nodes-hero {
  position: relative;
  padding-top: clamp(42px, 7vw, 92px);
  padding-bottom: clamp(54px, 8vw, 104px);
  overflow-x: clip;
}

.nodes-hero::before {
  position: absolute;
  top: 5%;
  right: -8%;
  width: min(52vw, 760px);
  height: min(42vw, 560px);
  border-radius: 50%;
  background:
    radial-gradient(circle at 28% 30%, var(--color-sun-soft), transparent 58%),
    radial-gradient(circle at 72% 70%, var(--color-dusk-soft), transparent 62%);
  content: "";
  filter: blur(28px);
  pointer-events: none;
}

.nodes-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(480px, 1.1fr);
  align-items: center;
  gap: clamp(34px, 6vw, 88px);
}

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

.nodes-hero-copy h1 {
  max-width: 720px;
  margin-top: 20px;
  margin-bottom: 24px;
}

.nodes-hero-copy .lead {
  margin-bottom: 26px;
}

.route-board {
  position: relative;
  z-index: 1;
  min-height: 430px;
  padding: 20px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
  transform: rotate(-1.5deg);
}

.route-board::before {
  position: absolute;
  inset: 56px 20px 66px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(90deg, var(--color-sun-faint), transparent 45%, var(--color-dusk-faint)),
    repeating-linear-gradient(90deg, transparent 0, transparent 19%, var(--color-ink-06) 19%, var(--color-ink-06) calc(19% + 1px));
  content: "";
}

.route-board-head,
.route-board-foot {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.route-board-label {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.route-board-lines {
  position: relative;
  z-index: 1;
  width: 100%;
  margin-top: 28px;
  color: var(--color-text);
}

.route-arc-sun {
  color: var(--color-sun);
}

.route-arc-dusk {
  color: var(--color-dusk);
}

.route-board-lines circle {
  color: var(--color-text);
  stroke: var(--color-panel);
  stroke-width: 5px;
}

.route-board-cities {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  margin-top: -22px;
  margin-bottom: 34px;
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

.route-board-foot {
  justify-content: flex-end;
}

.coverage-strip {
  display: grid;
  grid-template-columns: 0.75fr 0.75fr 1.5fr;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.coverage-strip > div {
  display: flex;
  min-height: 98px;
  min-width: 0;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  padding: 20px 26px;
}

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

.coverage-strip-label {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.coverage-strip strong {
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 25px);
}

.nodes-soft-section {
  background: var(--color-panel-soft);
}

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

.route-type-card {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: clamp(24px, 3vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  transform-style: preserve-3d;
}

.route-type-card.is-emphasis {
  border-color: var(--color-accent);
}

.route-type-card.is-emphasis::before {
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, var(--color-sun), var(--color-accent), var(--color-dusk));
  content: "";
}

.route-type-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 26px;
}

.route-type-index {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  color: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.route-type-card h3 {
  font-size: 26px;
}

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

.route-type-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 12px;
}

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

.use-case-row {
  display: grid;
  grid-template-columns: minmax(190px, 0.32fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 72px);
  padding-top: 38px;
  padding-bottom: 38px;
  border-bottom: 1px solid var(--color-border);
}

.use-case-label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.use-case-mark {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  color: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.use-case-label h3 {
  margin-top: 4px;
  font-size: 22px;
}

.use-case-copy {
  max-width: 860px;
}

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

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

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

.diagnosis-card {
  position: relative;
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.diagnosis-card + .diagnosis-card::before {
  position: absolute;
  top: 38px;
  right: calc(100% + 1px);
  width: 14px;
  border-top: 1px dashed var(--color-accent);
  content: "";
}

.diagnosis-step {
  display: inline-flex;
  min-height: 27px;
  align-items: center;
  margin-bottom: 18px;
  padding: 3px 9px;
  border: 1px solid var(--color-sun);
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.diagnosis-card h3 {
  font-size: 20px;
}

.diagnosis-card p {
  color: var(--color-muted);
  font-size: 14px;
}

.service-notes-grid {
  display: grid;
  grid-template-columns: minmax(230px, 0.7fr) repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: var(--grid-gap);
}

.service-notes-grid .section-head {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  margin-bottom: 0;
}

.service-note-panel {
  min-width: 0;
  padding: clamp(24px, 3vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.service-note-panel h3 {
  font-size: 24px;
}

.service-note-panel p {
  color: var(--color-muted);
}

.service-note-panel .button-row {
  margin-top: 24px;
}

@media (max-width: 1100px) {
  .nodes-hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .route-board {
    width: 100%;
    max-width: 820px;
    margin-inline: auto;
    transform: none;
  }

  .route-type-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .diagnosis-card + .diagnosis-card::before {
    display: none;
  }

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

  .service-notes-grid .section-head {
    position: static;
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .nodes-hero {
    padding-top: 32px;
    padding-bottom: 56px;
  }

  .nodes-hero::before {
    top: auto;
    right: -30%;
    bottom: 3%;
    width: 110vw;
    height: 70vw;
  }

  .route-board {
    min-height: 330px;
    padding: 16px;
  }

  .route-board::before {
    inset: 52px 16px 60px;
  }

  .route-board-lines {
    margin-top: 18px;
  }

  .route-board-cities {
    margin-top: -12px;
    margin-bottom: 24px;
    font-size: 10px;
  }

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

  .coverage-strip > div {
    min-height: 82px;
  }

  .coverage-strip > div + div {
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }

  .use-case-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    padding-top: 30px;
    padding-bottom: 30px;
  }

  .diagnosis-grid,
  .service-notes-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .service-notes-grid .section-head {
    grid-column: auto;
  }
}

@media (max-width: 520px) {
  .route-board {
    min-height: 285px;
  }

  .route-board-label {
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .route-board-lines {
    margin-top: 30px;
  }

  .route-board-cities {
    gap: 2px;
    margin-top: -2px;
    font-size: 9px;
  }

  .route-board-foot {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .route-type-card,
  .diagnosis-card,
  .service-note-panel {
    padding: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .route-board {
    transform: none;
  }
}