/* Static file:// site. No fonts, trackers, stylesheets or scripts from a CDN. */
:root{color-scheme:dark;--bg:#0e1213;--panel:#151a1b;--ink:#f0f3f1;--muted:#adb9ba;--line:#344043;--cyan:#77dce5;--warm:#ffbd8a}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:0}a{color:inherit;text-underline-offset:5px}a:hover{color:var(--cyan)}a:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:6px}img{max-width:100%}p{margin:0 0 22px}h1,h2,h3{line-height:1.12;margin:0;font-weight:550;letter-spacing:0}h2{font-size:42px}h3{font-size:22px}section{scroll-margin-top:24px}.skip{position:absolute;top:-100px;left:20px;z-index:10;background:var(--bg);padding:12px}.skip:focus{top:10px}
.header{min-height:90px;padding:20px 5%;display:flex;align-items:center;justify-content:space-between;gap:30px;border-bottom:1px solid var(--line)}.wordmark{font-size:25px;font-weight:750;text-decoration:none;display:flex;align-items:center;gap:20px}.wordmark span{font-size:10px;font-weight:500;color:var(--muted)}nav{display:flex;gap:30px;font-size:14px}nav a{text-decoration:none}
.hero{position:relative;height:min(760px,78svh);min-height:560px;isolation:isolate;overflow:hidden}.hero-image{position:absolute;width:100%;height:100%;object-fit:contain;object-position:85% 50%;z-index:-1;padding-left:30%;opacity:.95}.hero-content{padding:70px 5% 65px;max-width:660px}.eyebrow{font-size:12px;color:var(--cyan);text-transform:uppercase;font-weight:600;margin-bottom:24px}h1{font-size:100px;margin-bottom:14px}.hero-subtitle{font-size:45px;line-height:1.15;font-weight:400;margin-bottom:24px}.hero-description{max-width:335px;font-size:17px;color:var(--muted)}.primary{display:inline-flex;align-items:center;gap:28px;background:var(--ink);color:#101617;padding:13px 20px;font-size:14px;font-weight:650;text-decoration:none;border:1px solid transparent}.primary:hover{background:var(--cyan);color:#101617}.hero-footer{position:absolute;bottom:0;left:5%;right:5%;display:flex;justify-content:space-between;gap:18px;padding:16px 0;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.section{padding:80px 5%;border-top:1px solid var(--line)}.section-heading{display:grid;grid-template-columns:1fr 2fr 2fr;gap:36px;align-items:start;margin-bottom:48px}.section-heading p:last-child{color:var(--muted);font-size:16px}.section-heading .eyebrow{padding-top:9px}video{display:block;width:100%;max-height:78vh;aspect-ratio:1.44;object-fit:contain;background:#0e1213}.caption{display:flex;justify-content:space-between;gap:18px;font-size:12px;color:var(--muted);margin:18px 0 25px}details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;font-size:15px}summary{cursor:pointer;color:var(--warm)}details p{max-width:900px;margin:20px 0 0;color:var(--muted)}.method-list{display:grid;grid-template-columns:repeat(3,1fr);gap:38px}.method-list article{border-top:1px solid var(--line);padding-top:22px}.number{color:var(--warm);font:13px monospace}.method-list h3{margin:16px 0}.method-list p{font-size:15px;color:var(--muted)}.method-list a{font-size:13px}.geometry{margin:60px 0 0;max-width:1050px}.geometry img{display:block;width:100%;background:white}.geometry figcaption{font-size:12px;color:var(--muted);margin-top:12px}.code-section{background:#111718}.code-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:60px}.code-layout p{color:var(--muted);font-size:15px;margin-top:20px}.code-layout .muted{font-size:12px}pre{margin:0;padding:24px;background:#0a0f10;border:1px solid var(--line);border-radius:4px;overflow:auto;font-size:14px;line-height:1.9;color:var(--cyan)}.comment{color:#94a6a7}.resource-links{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin:45px 0 24px}.resource-links a{border-top:1px solid var(--line);padding:20px 0;text-decoration:none;font-size:22px}.resource-links span{display:block;font-size:13px;color:var(--muted);margin-top:8px}.status{color:var(--warm);font-size:13px;max-width:750px}.publication-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:100px}.publication h2{font-family:Georgia,serif;font-weight:400;font-size:42px;line-height:1.2;margin:20px 0 28px}.publication p{color:var(--muted);font-size:16px;max-width:680px}.publication .edition{font:12px monospace;color:var(--warm)}.text-link{display:inline-block;margin:20px;font-size:14px}.contents{margin:40px 0 0;padding:0;list-style-position:inside}.contents li{padding:22px 0;border-bottom:1px solid var(--line);font-size:16px}.contents li::marker{color:var(--cyan)}footer{padding:32px 5%;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:25px;font-size:12px;color:var(--muted)}footer p{margin:0}
@media(min-width:1700px){.hero-content{padding-left:8%}.hero-image{padding-left:23%}.section{padding-left:8%;padding-right:8%}}
@media(max-width:900px){.wordmark span{display:none}.section-heading{grid-template-columns:1fr 1.5fr}.section-heading .eyebrow{grid-column:1/-1;margin-bottom:0}.publication-layout{gap:40px}.hero-content{padding-top:45px}.hero-image{padding-left:24%;object-position:right center;opacity:.65}.method-list{gap:20px}.code-layout{gap:25px}}
@media(max-width:600px){body{font-size:16px}.header{padding:18px 6%;align-items:flex-start;gap:18px;min-height:100px}.wordmark{font-size:24px}nav{display:grid;grid-template-columns:1fr 1fr;gap:8px 22px;font-size:12px}.hero{height:720px;max-height:calc(100svh - 130px);min-height:560px}.hero-content{padding:27px 6%;max-width:100%}.hero .eyebrow{font-size:10px;margin-bottom:18px}h1{font-size:65px}.hero-subtitle{font-size:34px}.hero-description{font-size:14px;max-width:240px}.hero-image{padding:0;top:160px;height:calc(100% - 195px);width:100%;object-position:100% 100%;opacity:.6}.hero-footer{font-size:10px;left:6%;right:6%;flex-wrap:wrap;gap:3px}.hero-footer span{width:100%}.primary{padding:11px 15px}.section{padding:48px 6%}.section-heading{display:block;margin-bottom:28px}.section-heading .eyebrow{margin-bottom:18px}h2,.publication h2{font-size:31px}.section-heading h2{margin-bottom:24px}.method-list,.code-layout,.resource-links,.publication-layout{grid-template-columns:1fr;gap:28px}.caption{flex-direction:column;gap:8px}.geometry{margin-top:32px}pre{font-size:11px;padding:14px;white-space:pre-wrap;overflow-wrap:anywhere}.contents{margin-top:0}.resource-links{margin-top:30px}.resource-links a{font-size:20px}.text-link{margin-left:0;margin-right:20px}footer{flex-wrap:wrap;padding:28px 6%;gap:14px}footer .wordmark{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Revision 1: geometry first, demonstration second. Fixed type sizes avoid
   viewport-dependent scaling; the first section stays visible below the hero. */
.tree-hero{height:auto;min-height:0;padding-bottom:58px}
.tree-hero .hero-content{max-width:1040px;padding:48px 5% 38px}
.tree-hero h1{font-size:52px;overflow-wrap:anywhere}
.tree-hero .hero-subtitle{font-size:34px;max-width:740px}
.tree-hero .hero-description{max-width:600px;color:#e0e7e6}
.tree-hero .hero-image{padding:0;object-fit:cover;object-position:center;opacity:.20}
.hero-paths{display:flex;flex-wrap:wrap;gap:14px 28px;font-size:16px}
.hero-paths a{color:var(--cyan)}
.demo-section video{max-width:760px;aspect-ratio:1.44;max-height:540px}
.demo-section .caption{max-width:760px}
@media(max-width:600px){.tree-hero{max-height:none}.tree-hero .hero-content{padding:28px 6% 32px}.tree-hero h1{font-size:32px}.tree-hero .hero-subtitle{font-size:25px}.tree-hero .hero-description{font-size:15px}.tree-hero .hero-image{top:0;height:100%;opacity:.15}.hero-paths{font-size:14px;gap:12px 22px}.tree-hero .hero-footer{font-size:10px}}