.sm-hero { padding: var(--space-9) 0 var(--space-6); }
  .sm-hero h1 { font-size: clamp(2rem, 3.5vw, 3rem); margin: 0 0 var(--space-3); font-family: var(--font-serif); font-weight: 500; letter-spacing: -0.02em; line-height: 1.05; }
  .sm-hero p { font-size: 1.0625rem; color: var(--fg-2); max-width: 640px; margin: 0; }
  .sm-toolbar { display: flex; justify-content: space-between; align-items: center; gap: var(--space-5); padding: var(--space-4) 0 var(--space-5); border-bottom: 1px solid var(--border); }
  .sm-toolbar__filters { display: flex; gap: 8px; }
  .sm-zoom { display: flex; gap: 4px; align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 4px; }
  .sm-zoom button { width: 32px; height: 32px; border: none; background: transparent; border-radius: 6px; cursor: pointer; font-size: 1.1rem; color: var(--fg-2); display: grid; place-items: center; }
  .sm-zoom button:hover { background: var(--bg-muted); color: var(--fg-1); }
  .sitemap-frame {
    position: relative;
    height: 1100px;
    background:
      radial-gradient(circle at 1px 1px, rgba(46,61,60,0.08) 1px, transparent 0);
    background-size: 24px 24px;
    background-color: var(--bg);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border);
    overflow: hidden;
    cursor: grab;
    margin-bottom: var(--space-7);
  }
  .sitemap-inner {
    position: absolute;
    inset: 0;
    transform-origin: 0 0;
    transition: transform 200ms var(--ease-out);
    padding: 60px 80px;
    min-width: 1900px;
  }
  .sm-node {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 10px 14px;
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    color: var(--fg-1);
    transition: all var(--dur-fast) var(--ease-out);
    display: block;
    position: relative;
  }
  .sm-node:hover {
    border-color: var(--brand-trunk);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
  }
  .sm-node strong { display: block; font-size: 0.875rem; font-weight: 600; color: var(--fg-1); font-family: var(--font-sans); }
  .sm-node span { display: block; font-size: 0.7rem; color: var(--fg-3); margin-top: 2px; }
  .sm-node.is-root {
    background: var(--brand-trunk);
    border-color: var(--brand-trunk);
    padding: 16px 22px;
  }
  .sm-node.is-root strong { color: var(--brand-cream); font-family: var(--font-serif); font-size: 1.2rem; font-weight: 500; }
  .sm-node.is-root span { color: var(--brand-sage-light); }
  .sm-node.is-pillar {
    background: var(--brand-cream);
    border-color: var(--border-strong);
  }
  .sm-node.is-pillar.tint-succ  { background: #E8E4D4; }
  .sm-node.is-pillar.tint-indiv { background: var(--tint-sage-lt); }
  .sm-node.is-pillar.tint-inv   { background: var(--tint-amber); }
  .sm-node.is-pillar.tint-fisc  { background: var(--tint-orange); }
  .sm-node.is-persona {
    background: var(--surface);
    border-color: var(--brand-sage);
    border-left-width: 3px;
  }
  .sm-node.is-utility {
    background: var(--surface-alt);
    border-style: dashed;
  }
  .sm-col { position: absolute; display: flex; flex-direction: column; gap: 10px; }
  .sm-svg { position: absolute; inset: 0; pointer-events: none; width: 100%; height: 100%; }
  .sm-svg path { stroke: var(--border-strong); stroke-width: 1.5; fill: none; stroke-linecap: round; }

  .sm-label {
    position: absolute;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg-3);
  }
  .sm-legend {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
    padding: var(--space-5);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
  }
  .sm-legend__item { display: flex; align-items: center; gap: 10px; font-size: 0.875rem; color: var(--fg-2); }
  .sm-legend__swatch { width: 22px; height: 14px; border-radius: 4px; border: 1px solid var(--border); }