.atlas-hero,
.atlas-section,
.atlas-doors {
  padding: 3rem 0;
}

.atlas-hero .eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.atlas-hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2.4rem, 3.5vw + 1rem, 3.4rem);
  letter-spacing: -0.01em;
}

.atlas-hero .atlas-lede,
.atlas-section p,
.atlas-node-section p {
  color: var(--muted);
  max-width: 64ch;
}

.atlas-diagram {
  padding: 0 0 3rem;
}

.atlas-diagram-frame {
  margin: 1.5rem auto 0;
  padding: clamp(1rem, 3vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  overflow: auto;
}

.atlas-diagram-frame .mermaid {
  display: inline-block;
  width: max-content;
  min-width: 100%;
}

.atlas-diagram-frame svg {
  display: block;
  width: auto !important;
  height: auto;
  max-width: none !important;
  overflow: visible;
}

.mermaid svg g.node {
  cursor: pointer;
  transition: opacity 0.2s ease, filter 0.2s ease;
}

.mermaid svg g.node .label,
.mermaid svg g.node foreignObject {
  pointer-events: none;
}

.mermaid svg.atlas-has-hover g.node {
  opacity: 0.45;
}

.mermaid svg.atlas-has-hover g.node.atlas-node-active {
  opacity: 1;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.18));
}

.mermaid svg.atlas-has-hover g.edgePath {
  opacity: 0.3;
}

.atlas-diagram-note {
  margin-top: 0.75rem;
  color: var(--muted);
}

.atlas-doors .card-grid {
  margin-top: 1.5rem;
}

.atlas-node {
  padding: 3rem 0;
}

.atlas-node-header h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 3vw + 1rem, 3rem);
}

.atlas-node-meta {
  margin: 0 0 1.5rem;
}

.atlas-node-section {
  margin-top: 2rem;
}

.atlas-todo {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.atlas-todo li {
  margin-bottom: 0.5rem;
}

@media (max-width: 720px) {
  .atlas-diagram-frame .mermaid {
    min-width: 720px;
  }
}