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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.hero .hero-canvas,.cursor{display:none!important}.hero .hero-media{opacity:1!important}.word-inner,[data-reveal],.proof-step,.proof-verdict,.node,.edge,.empty-box,.code-line,.guide-list li{opacity:1!important;transform:none!important;clip-path:none!important}.site-header.is-hidden{transform:none}.milestones-viewport{overflow-x:auto!important}.milestones-track{transform:none!important}}
@media print{.page-sub::before{display:none}.site-header,main,.site-footer{margin-left:0}.site-header,.proof-rail,.grain,.cursor,.scroll-progress,.partners-slot,.hero-canvas{display:none!important}.page-home{padding-left:0}.article{padding-top:0}.prose{max-width:none}.prose .note{position:static;width:auto}.word-inner,[data-reveal],.code-line,.proof-step{opacity:1!important;transform:none!important;clip-path:none!important}}

@media(max-width:700px){.milestones-viewport{overflow:visible}.milestones-track{display:block;width:auto;padding:0 var(--gutter)}.stop{width:auto;margin-bottom:12px}.stop-card{border-right:1px solid var(--line)}.milestones-hint{display:none}}

/* data atlas */
.section-atlas{background-image:var(--grid);background-size:48px 48px}
.atlas-stage{position:relative;margin-top:44px;border:1px solid var(--line);background:radial-gradient(ellipse at 50% 45%,#8fd3ff0a,transparent 70%),#1c191bcc;overflow:hidden}
.atlas-fallback{padding:12px 16px}
.atlas-svg{width:100%;height:auto}
.a-edge{fill:none;stroke:var(--accent);stroke-opacity:.35;stroke-width:1}
.a-page{fill:var(--bg);stroke:var(--accent);stroke-width:1.5}
.a-term{fill:var(--muted)}
.a-key{fill:var(--bg);stroke:var(--accent2);stroke-width:1.5}
.a-text{fill:var(--muted);font:11px var(--mono)}
.atlas-canvas{display:none;width:100%;height:clamp(420px,56vw,640px);cursor:grab;touch-action:pan-y}
.atlas-stage.is-live .atlas-canvas{display:block}
.atlas-stage.is-live .atlas-fallback{display:none}
.atlas-stage.is-drag .atlas-canvas{cursor:grabbing}
.atlas-stage.is-hit .atlas-canvas{cursor:pointer}
.atlas-labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.atlas-label{position:absolute;left:0;top:0;white-space:nowrap;font:11px/1 var(--mono);letter-spacing:.06em;color:var(--muted);padding:4px 8px;opacity:0;transition:opacity .2s,color .2s}
.atlas-label.is-page{opacity:.75}
.atlas-label.is-on{opacity:1;color:var(--text);background:var(--surface);border:1px solid var(--line)}
.atlas-view{position:relative}.atlas-caption{display:none;margin:0;flex-wrap:wrap;align-items:baseline;gap:4px 18px;padding:14px 20px;border-top:1px solid var(--line);background:#272326e6;font:11px/1.6 var(--mono);color:var(--muted)}
.atlas-stage.is-live .atlas-caption{display:flex}
.cap-name{color:var(--accent)}
.cap-link{display:none;margin-left:auto;text-decoration:none;color:var(--text);border:1px solid var(--line);padding:4px 12px}
.atlas-caption.has-link .cap-link{display:inline-block}
.atlas-lists{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 6%;margin-top:40px}
.atlas-h{font:11px/1.8 var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.atlas-list{list-style:none;padding:0;margin:0}
.atlas-list li{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:4px 20px;align-items:baseline;padding:14px 0;border-top:1px solid var(--line)}
.atlas-list a{font:400 19px/1.25 var(--heading);letter-spacing:-.03em;color:var(--text);text-decoration:none}
.atlas-list a:hover{color:var(--accent)}
.atlas-list li[data-kind=key] a{color:var(--accent2)}
.atlas-list span{font-size:13px;line-height:1.6;color:var(--muted)}
@media(max-width:900px){.atlas-lists{grid-template-columns:minmax(0,1fr);gap:32px}.atlas-canvas{height:440px}}
@media(max-width:700px){.atlas-list li{grid-template-columns:minmax(0,1fr)}.atlas-canvas{height:400px}.atlas-stage{margin-top:32px}}