.nodes-opening{
  position:relative;
  isolation:isolate;
  padding-bottom:40px;
}
.nodes-opening::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:radial-gradient(ellipse at 12% 0%,var(--accent-wash),var(--clear) 68%);
}
.nodes-opening h1{
  margin:20px 0 24px;
}
.nodes-intro{
  max-width:48em;
  font-size:var(--text-lede);
  color:var(--muted);
}
.nodes-fact-strip{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:24px;
}
.nodes-opening-note{
  max-width:56em;
  font-size:var(--text-small);
}
.nodes-handbook{
  padding-bottom:24px;
}
.nodes-handbook .section + .section{
  border-top:1px solid var(--border);
}
.nodes-handbook .section-head h2{
  margin:8px 0 0;
}
.nodes-handbook .section > p{
  max-width:72em;
}
.nodes-handbook .table-scroll{
  margin-bottom:40px;
}
.nodes-type-stack{
  display:grid;
  gap:24px;
  margin-top:32px;
}
.nodes-type-entry{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,2fr);
  gap:40px;
}
.nodes-type-label h3{
  margin:16px 0 0;
}
.nodes-type-entry p:last-child{
  margin-bottom:0;
}
.nodes-purpose-list{
  margin-top:32px;
  border-top:1px solid var(--border);
}
.nodes-purpose{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,2fr);
  gap:40px;
  padding-top:32px;
  padding-bottom:32px;
  border-bottom:1px solid var(--border);
}
.nodes-purpose h3{
  margin:0;
  max-width:16em;
}
.nodes-purpose p:last-child{
  margin-bottom:0;
}
.nodes-checklist{
  padding-left:24px;
  max-width:72em;
}
.nodes-checklist li{
  padding-left:8px;
  margin-block:20px;
}
.nodes-checklist li::marker{
  color:var(--accent-dark);
  font-family:var(--font-mono);
  font-weight:700;
}
.nodes-help-links{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:20px;
  margin-top:32px;
}
@media(max-width:768px){
  .nodes-opening{
    padding-bottom:32px;
  }
  .nodes-type-entry,
  .nodes-purpose{
    grid-template-columns:minmax(0,1fr);
    gap:24px;
  }
  .nodes-purpose h3{
    max-width:none;
  }
}
@media(max-width:640px){
  .nodes-fact-strip{
    gap:8px;
  }
  .nodes-type-entry{
    gap:20px;
  }
  .nodes-help-links{
    align-items:flex-start;
    flex-direction:column;
    gap:16px;
  }
}