:root {
  color-scheme: light dark;
}

.page {
  gap: clamp(36px, 5vw, 72px);
  max-width: var(--site-max, 1440px);
}

.structure-hero {
  display: grid;
  gap: 16px;
  max-width: 960px;
  padding-top: clamp(24px, 5vw, 70px);
}

.structure-hero h1 {
  font-size: clamp(52px, 8vw, 112px);
  font-weight: 650;
  letter-spacing: 0;
  line-height: 0.93;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.proof-strip,
.workflow-grid,
.flow,
.map-grid,
.contract-grid,
.group-list {
  display: grid;
  gap: 14px;
}

.proof-strip {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.proof-strip article {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 6px;
  padding-top: 14px;
}

.proof-strip strong {
  font-size: clamp(34px, 5vw, 60px);
  font-weight: 650;
  line-height: 0.95;
}

.proof-strip span {
  color: var(--muted);
}

.workflow-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.flow {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.map-grid,
.contract-grid,
.group-list {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.node,
.map-grid article,
.contract-grid article,
.route-groups,
.workflow-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 16px;
  min-width: 0;
  padding: clamp(18px, 2vw, 26px);
}

.node {
  align-content: space-between;
  min-height: 390px;
}

.node-index,
.workflow-grid span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1;
  text-transform: uppercase;
}

.node h2,
.map-grid h2,
.contract-grid h2,
.route-groups h2,
.workflow-grid h2 {
  font-size: clamp(25px, 2.7vw, 42px);
  font-weight: 650;
  line-height: 1;
}

.workflow-grid h2 {
  font-size: clamp(26px, 3.2vw, 44px);
}

.node p,
.map-grid p,
.contract-grid p,
.route-groups p,
.workflow-grid p {
  color: var(--muted);
  margin: 0;
}

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

.chips span {
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1;
  padding: 8px 10px;
}

.contract-grid.wide {
  grid-column: span 2;
}

.route-groups {
  gap: 22px;
}

.group-head {
  align-items: end;
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.7fr);
}

.group-list article {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 10px;
  padding-top: 14px;
}

.group-list h3 {
  font-size: 18px;
  font-weight: 650;
}

.structure-hero a,
.map-grid a,
.contract-grid a,
.route-groups a {
  color: inherit;
}

code {
  background: color-mix(in oklab, var(--bg), var(--fg) 7%);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.92em;
  padding: 1px 4px;
}

@media (max-width: 1100px) {
  .flow,
  .map-grid,
  .proof-strip,
  .contract-grid,
  .group-list,
  .workflow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .group-head {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .flow,
  .map-grid,
  .proof-strip,
  .contract-grid,
  .group-list,
  .workflow-grid {
    grid-template-columns: 1fr;
  }

  .contract-grid.wide {
    grid-column: auto;
  }

  .node {
    min-height: 0;
  }
}