.nodes-intro {
  position: relative;
  isolation: isolate;
  overflow-x: clip;
  background: linear-gradient(140deg,var(--stage-top),var(--bg) 60%,var(--stage-mid));
  border-bottom: 1px solid var(--border);
}
.nodes-intro::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 0 0 55%;
  pointer-events: none;
  background: radial-gradient(ellipse at top right,var(--glow-violet),var(--clear) 72%);
  filter: blur(40px);
}
.nodes-intro .section-head {
  max-width: 1000px;
  margin-bottom: 24px;
}
.nodes-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.nodes-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}
.nodes-document {
  padding-top: 32px;
}
.nodes-chapter + .nodes-chapter {
  margin-top: var(--section-space);
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.nodes-table-note {
  display: grid;
  gap: 12px;
  margin-top: 20px;
  color: var(--muted);
  font-size: var(--fs-ui);
  line-height: 1.85;
}
.nodes-table-note p {
  max-width: var(--reading-width);
}
.nodes-type-grid {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 20px;
}
.nodes-type-grid > * {
  min-width: 0;
}
.nodes-type-grid h3 {
  margin-top: 20px;
  margin-bottom: 16px;
}
.nodes-type-grid p {
  color: var(--muted);
  line-height: 1.9;
  font-size: var(--fs-label);
}
.nodes-type-grid p + p {
  margin-top: 16px;
}
.nodes-chapter > .prose {
  max-width: var(--reading-width);
}
.nodes-purpose-list {
  display: grid;
  gap: 16px;
}
.nodes-purpose {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,4fr);
  gap: 32px;
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  box-shadow: var(--panel-shadow);
}
.nodes-purpose > * {
  min-width: 0;
}
.nodes-purpose h3 {
  color: var(--accent);
}
.nodes-purpose .prose p:first-child {
  margin-top: 0;
}
.nodes-purpose .prose p:last-child {
  margin-bottom: 0;
}
.nodes-purpose .prose {
  color: var(--muted);
}
.nodes-closing {
  display: grid;
  gap: 20px;
  margin-top: 24px;
  line-height: 1.85;
}
@media (max-width: 1000px) {
  .nodes-type-grid {
    grid-template-columns: minmax(0,1fr);
  }
}
@media (max-width: 768px) {
  .nodes-purpose {
    grid-template-columns: minmax(0,1fr);
    gap: 16px;
    padding: 20px;
  }
  .nodes-chapter + .nodes-chapter {
    padding-top: 32px;
  }
  .nodes-intro::after {
    inset-inline-start: 30%;
  }
}
@media (max-width: 640px) {
  .nodes-actions {
    gap: 10px;
  }
  .nodes-actions .btn {
    padding-inline: 22px;
    font-size: var(--fs-ui);
  }
}