:root{color-scheme:dark;--bg:#080f1d;--panel:#111e32;--line:#26384e;--text:#eff5ff;--muted:#a9b9cf;--cyan:#62deed;--green:#81ecc3;--amber:#ffcd87;font-family:Inter,"Segoe UI",system-ui,sans-serif;font-size:16px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--cyan);text-decoration:none}a:hover{text-decoration:underline}button,a,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible,video:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}.topbar{max-width:1440px;margin:auto;padding:25px 48px;display:flex;justify-content:space-between;border-bottom:1px solid var(--line);gap:24px}.brand{font-size:20px;font-weight:700;color:var(--text);display:flex;gap:12px;align-items:center}.brand .muted{font-size:14px;font-weight:400}.brand-icon{display:grid;place-items:center;width:34px;height:34px;background:var(--cyan);color:var(--bg);border-radius:9px}.topbar nav{display:flex;gap:28px;align-items:center;font-size:14px}main{max-width:1344px;margin:auto;padding:54px 48px 24px}.eyebrow{font-size:13px;letter-spacing:.12em;font-weight:700;color:var(--cyan)}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);margin-right:7px}.muted{color:var(--muted)}h1{font-size:clamp(38px,5.7vw,76px);line-height:1.05;letter-spacing:-.045em;margin:20px 0 22px;font-weight:700}h2{font-size:28px;letter-spacing:-.035em;line-height:1.2;margin:10px 0 24px}h3{font-size:18px;line-height:1.4}.intro{max-width:710px;color:var(--muted);font-size:18px;margin-bottom:36px}.demo-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(265px,1fr);gap:20px}.video-panel{overflow:hidden;border:1px solid var(--line);border-radius:14px;background:var(--panel);align-self:start}video{display:block;width:100%;aspect-ratio:16/9;background:#080f1d}.video-footer{padding:14px 18px;display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--muted)}.proof-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px}.proof-card h2{margin-bottom:18px}.proof-row{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:8px 0;gap:14px}.proof-row strong{font:700 24px ui-monospace,monospace;color:var(--green)}.provenance{display:flex;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin:18px 0}.provenance span{border:1px solid var(--line);border-radius:5px;padding:3px 7px}.button{display:block;text-align:center;padding:9px 14px;color:var(--bg);background:var(--cyan);border-radius:7px;font-weight:650;font-size:14px}.notice{padding-left:16px;border-left:2px solid var(--line);font-size:14px;color:var(--muted);margin:24px 0 58px}.section-title{display:flex;justify-content:space-between;align-items:center;gap:20px}.text-link{font-size:14px}.trace-section{scroll-margin-top:24px}.trace-toolbar{padding:18px;background:var(--panel);border:1px solid var(--line);border-radius:12px 12px 0 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}button{font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;border:1px solid var(--line);border-radius:6px;padding:9px 14px;color:var(--muted);background:var(--bg);margin-right:8px}button[aria-pressed=true]{color:var(--bg);background:var(--cyan);border-color:var(--cyan)}code{font-family:ui-monospace,Consolas,monospace;font-size:14px}.table-wrap{overflow:auto;border:1px solid var(--line);border-top:0;border-radius:0 0 12px 12px}table{border-collapse:collapse;width:100%;min-width:620px;font-size:14px}th{text-align:left;color:var(--muted);font-weight:500;font-size:13px}th,td{padding:13px 18px;border-bottom:1px solid var(--line)}tbody tr:last-child td{border-bottom:0}td:first-child{font-family:ui-monospace,Consolas,monospace;width:45%}td:nth-child(2){font-variant-numeric:tabular-nums;white-space:nowrap;width:14%}.track{position:relative;height:11px;background:#14263b;border-radius:3px;min-width:170px;overflow:hidden}.bar{height:100%;position:absolute;min-width:2px;border-radius:3px;background:var(--cyan)}.bar.error{background:var(--amber)}.small{color:var(--muted);font-size:14px;max-width:980px}.decisions{margin-top:56px}.decision-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.number{font:500 14px ui-monospace,monospace;color:var(--cyan)}.decision-grid article{border-top:1px solid var(--line);padding-top:20px}.decision-grid p{color:var(--muted);font-size:16px}details{margin-top:36px;padding:18px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}summary{cursor:pointer;color:var(--text)}footer{border-top:1px solid var(--line);padding-top:22px;margin-top:36px;display:flex;gap:20px;justify-content:space-between;color:var(--muted);font-size:13px;flex-wrap:wrap}.sr-only,.skip:not(:focus){position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip:focus{display:block;padding:10px}.error-message{color:var(--amber)}[hidden]{display:none!important}@media(max-width:880px){main{padding:36px 24px}.topbar{padding:20px 24px}.demo-grid{grid-template-columns:1fr}.proof-card{padding:24px}.decision-grid{grid-template-columns:1fr;gap:14px}.section-title{align-items:start;flex-direction:column;gap:0;margin-bottom:18px}.brand .muted{display:none}.notice{margin-bottom:40px}.video-footer{flex-wrap:wrap}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}