/* Buildless presentation stylesheet. Shared tokens keep the desktop and phone
   layouts consistent; no framework, font download, or third-party service. */
:root{color-scheme:dark;--bg:#0a1119;--panel:#111d29;--line:#273642;--text:#edf3f2;--muted:#9eb0b8;--mint:#a2e6cd;--gold:#e3bf8b;--radius:18px;font-family:Inter,"Segoe UI","Microsoft JhengHei",system-ui,sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:30px}body{margin:0;background:var(--bg);color:var(--text);line-height:1.7}a{color:inherit;text-decoration:none}button,select,input{font:inherit}button,a,input,select{touch-action:manipulation}button,select{color:inherit}button,select,summary{cursor:pointer}button:disabled,select:disabled{cursor:wait;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:4px}a:hover{color:var(--mint)}button:hover:not(:disabled){filter:brightness(1.15)}.wrap{max-width:1320px;margin:auto;padding-inline:42px}.header{height:100px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-size:24px;font-weight:700;letter-spacing:3px;white-space:nowrap}.brand>span{color:var(--mint)}.brand .brand-caption{font-size:9px;letter-spacing:1.9px;color:var(--muted);display:block;margin-top:-3px}.header nav{display:flex;gap:28px;font-size:13px}.repo-link{color:var(--mint)}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:90px;align-items:center;padding:88px 0 76px}.eyebrow{font-size:11px;letter-spacing:2.1px;color:var(--mint);font-weight:600;margin:0 0 20px}.dot{display:inline-block;height:6px;width:6px;border-radius:50%;background:var(--mint);vertical-align:middle;margin-right:7px;box-shadow:0 0 14px #a2e6cd44}h1,h2,h3,p{margin-top:0}h1{font-weight:550;font-size:clamp(38px,4.9vw,64px);line-height:1.25;letter-spacing:1px;margin-bottom:24px}h1>span{color:var(--mint)}h2{font-size:27px;font-weight:500;line-height:1.45;margin-bottom:12px}h3{font-size:19px;font-weight:500}.intro{color:var(--muted);font-size:16px;line-height:1.95}.hero-actions{display:flex;gap:24px;align-items:center;margin-top:32px}.button{padding:13px 21px;border-radius:8px;font-size:13px;display:inline-flex;gap:24px;justify-content:space-between;align-items:center}.primary{background:var(--mint);color:#10241e;font-weight:700}.primary:hover{color:#10241e;background:#b7f1dc}.secondary{border:1px solid #527264;color:var(--mint)}.text-link{font-size:13px;color:var(--mint)}.route-summary{padding:28px 30px;border:1px solid var(--line);background:linear-gradient(135deg,#17283088,#0d1822);border-radius:var(--radius)}.route-summary>p:not(.eyebrow){color:var(--muted);font-size:14px}.route-summary h2{font-size:22px;margin-top:24px}.route-mark{display:flex;align-items:center;padding:0 12px;height:36px}.route-mark i{width:15px;height:15px;border:2px solid var(--mint);border-radius:50%}.route-mark>span{flex:1;border-top:2px dashed #486559;margin-inline:14px}.route-mark b{border-radius:50%;background:var(--mint);width:30px;height:30px;color:#112b22;text-align:center}.route-summary dl{display:flex;justify-content:space-between;margin:28px 0 0;padding-top:22px;border-top:1px solid var(--line)}dt{color:var(--muted);font-size:11px}dd{margin:5px 0 0;font-size:23px;font-variant-numeric:tabular-nums}dd small{font-size:12px;color:var(--muted)}.mint{color:var(--mint);font-size:20px}.section-top{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:25px}.section-top .eyebrow{margin-bottom:12px}.section-top h2{margin-bottom:0}.section-top>p{font-size:14px;color:var(--muted)}.badge{white-space:nowrap;font-size:11px;padding:6px 12px;border:1px solid #395249;border-radius:50px;color:var(--mint);background:#a2e6cd06}.player{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#101a25}.notice{padding:11px 20px;font-size:13px;color:var(--muted);background:#16232d;border-bottom:1px solid var(--line)}.notice.error{color:#ffb7aa;background:#412626}.views{display:grid;grid-template-columns:1.2fr 1fr}.world-panel{border-right:1px solid var(--line)}.panel-caption{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px 20px;height:63px;font-size:13px}.panel-caption small{font-size:11px;color:var(--muted);margin-left:8px}.small-button{background:transparent;border:1px solid var(--line);border-radius:5px;padding:5px 12px;font-size:12px;min-height:32px}.viewport{height:388px;position:relative;overflow:hidden;background:#101c28}.viewport canvas{width:100%;height:100%;display:block;touch-action:none}.canvas-hint{position:absolute;bottom:14px;right:16px;font-size:10px;color:#8399a6;pointer-events:none}.legend{display:flex;gap:16px;flex-wrap:wrap;padding:15px 20px;font-size:10px;color:var(--muted);border-top:1px solid var(--line)}.legend i{display:inline-block;width:8px;height:8px;margin-right:5px;border-radius:2px}.road{background:#566c7d}.path{background:var(--mint)}.object{background:#e4a7bf}.held{border:1px solid #8b9ca8}.rgb-panel select,select{background:#172733;border:1px solid #324653;border-radius:6px;padding:5px 9px;font-size:12px;max-width:100%}.rgb-container{position:relative;aspect-ratio:16/9;margin:0 20px;background:#091119;border-radius:7px;overflow:hidden}.rgb-container img{width:100%;height:100%;display:block;object-fit:cover}.image-status{position:absolute;inset:0;display:grid;place-items:center;background:#101b25;font-size:12px;color:var(--muted)}[hidden]{display:none!important}.image-meta{padding:9px 20px;display:flex;justify-content:space-between;gap:8px;font-size:9px;color:#93a7b4;font-variant-numeric:tabular-nums}.route-map{display:flex;gap:20px;margin:4px 20px 15px;align-items:center}.route-map svg{height:113px;min-width:0;width:50%;background:#0e1821;border:1px solid #263a46;border-radius:8px}.route-map>div{display:flex;flex-direction:column;gap:4px}.route-map .eyebrow{font-size:9px;letter-spacing:1.3px;margin:0}.route-map strong{font-size:14px;font-weight:500}.route-map small{font-size:10px;color:var(--muted)}.telemetry{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line);padding:20px 25px;gap:20px}.telemetry>div>span{display:block;color:var(--muted);font-size:11px;margin-bottom:5px}.telemetry strong{font-weight:500;font-size:27px;font-variant-numeric:tabular-nums;line-height:1.3}.telemetry small{color:var(--muted);margin-left:7px;font-size:11px}.telemetry .decision{color:var(--mint);font-size:21px}.telemetry .object-count{font-size:15px}.playback{display:flex;gap:22px;align-items:center;padding:20px 25px 10px}.playback-buttons{display:flex;gap:8px;align-items:center}.play-button{border:0;background:var(--mint);color:#123025;border-radius:50%;width:40px;height:40px;font-size:16px}.timeline{flex:1;min-width:0}.timeline input{width:100%;accent-color:var(--mint);margin:0;height:25px;cursor:pointer}.timeline>div{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums}.decision-description{padding:0 25px 18px;font-size:12px;color:var(--muted);min-height:40px;margin:0}.explanation{margin-top:16px;font-size:12px;color:var(--muted);border-bottom:1px solid var(--line);padding:10px 0 18px}.explanation summary{color:#b5c5c9}.explanation p{margin:15px 0 0;max-width:1000px}.system{padding:85px 0 65px}.pipeline{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);padding:0;gap:28px;margin-top:40px}.pipeline li{border-top:1px solid #3c514e;padding-top:19px}.pipeline li>span{font-size:11px;color:var(--mint)}.pipeline h3{margin-top:13px;margin-bottom:12px}.pipeline p{font-size:13px;color:var(--muted)}.pipeline small{font-size:10px;color:#708d99}.video-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px;align-items:center;padding:35px 0 65px;border-bottom:1px solid var(--line)}.video-section>div>p:not(.eyebrow){font-size:14px;color:var(--muted)}video{width:100%;height:auto;border-radius:10px;border:1px solid var(--line);background:#101a24}.start{display:grid;grid-template-columns:1fr 1.2fr;gap:85px;padding:75px 0 80px}.start>div>p:not(.eyebrow){color:var(--muted);font-size:14px}.start-options article{padding-bottom:18px;margin-bottom:20px;border-bottom:1px solid var(--line)}.start-options article>span{font-size:10px;color:var(--mint);letter-spacing:1px}.start-options h3{margin:6px 0 12px}.start-options p{font-size:12px;color:var(--muted);margin-bottom:0}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#14212d;border:1px solid #273c48;border-radius:7px;padding:12px 15px;font-size:12px;color:#cae0d9;line-height:1.7}code{font-family:Consolas,monospace}.start-options .button{width:100%;justify-content:center}footer{display:flex;gap:20px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:25px!important;padding-bottom:30px!important}footer .brand{font-size:17px}footer p,footer>a:last-child{font-size:10px;color:var(--muted);margin:0}.skip{position:absolute;top:-80px;left:15px;background:var(--mint);color:#10221b;padding:10px;z-index:20}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1450px){.viewport{height:403px}}
@media(max-width:1000px){.wrap{padding-inline:26px}.hero{gap:35px}.views{grid-template-columns:1fr 1fr}.viewport{height:350px}.panel-caption{padding-inline:15px}.route-map{gap:12px;margin-inline:15px}.route-map svg{height:95px}.legend{gap:10px}.telemetry{gap:10px}.start{gap:40px}.header nav{gap:18px}}
@media(max-width:700px){.wrap{padding-inline:20px}.header{height:83px}.header nav{gap:16px;font-size:12px}.header nav a:nth-child(2),.header nav a:nth-child(3){display:none}.brand{font-size:21px}.brand .brand-caption{font-size:7px}.hero{grid-template-columns:1fr;gap:32px;padding-top:45px;padding-bottom:50px}.eyebrow{font-size:9px;letter-spacing:1.5px}h1{font-size:45px}.intro{font-size:14px}.hero-actions{gap:20px}.route-summary{padding:22px 24px}.route-summary .eyebrow{margin-bottom:12px}.route-summary h2{margin-top:16px}.route-summary dl{margin-top:18px;padding-top:15px}.section-top{align-items:flex-start;flex-direction:column;gap:13px}h2{font-size:24px}.views{grid-template-columns:1fr}.world-panel{border-right:0;border-bottom:1px solid var(--line)}.viewport{height:330px}.panel-caption{height:57px}.rgb-container{margin-inline:15px}.route-map{margin-bottom:16px}.route-map svg{height:100px}.telemetry{grid-template-columns:1fr 1fr;gap:21px;padding:20px}.telemetry strong{font-size:26px}.telemetry .decision{font-size:20px}.playback{padding:16px 15px 12px;gap:12px;flex-wrap:wrap}.playback-buttons .small-button{padding:4px 9px}.playback-buttons{gap:5px}.rate-label{margin-left:auto}.timeline{order:3;flex-basis:100%}.decision-description{padding:0 16px 18px;min-height:58px}.canvas-hint{font-size:10px}.explanation{font-size:12px}.system{padding:55px 0 35px}.pipeline{grid-template-columns:1fr 1fr;gap:26px 24px;margin-top:22px}.pipeline h3{font-size:18px}.pipeline p{font-size:12px}.video-section{grid-template-columns:1fr;gap:22px;padding:20px 0 45px}.start{grid-template-columns:1fr;gap:22px;padding:48px 0}.start-options h3{font-size:18px}footer{flex-wrap:wrap}footer p{flex-basis:100%;order:3}footer>a:last-child{margin-left:auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

/* Chapter controls and truthful memory overlays share the existing layout. */
.chapter-picker{display:flex;gap:16px;align-items:center;margin:0 0 12px;font-size:13px}.chapter-picker select{font-size:14px;padding:10px 14px;min-width:330px}.chapter-description{color:var(--muted);font-size:13px;max-width:1000px;margin-bottom:22px}.tracking-detail{display:grid;grid-template-columns:1.5fr 1fr;gap:25px;padding:16px 25px;border-bottom:1px solid var(--line)}.tracking-detail>div{min-width:0}.tracking-detail .eyebrow{display:block;font-size:9px;margin-bottom:6px}.tracking-detail strong{display:block;font-size:12px;font-weight:500;color:var(--gold);overflow-wrap:anywhere}.tracking-detail small{display:block;color:var(--muted);font-size:10px;margin-top:5px}.bookmarks{display:flex;gap:8px;flex-wrap:wrap;padding:16px 25px 0}.track-label{position:absolute;transform:translate(-50%,-100%);pointer-events:none;background:#322b1ee8;color:#ffe2a9;border:1px solid #ad9364;padding:1px 5px;border-radius:4px;font:10px Consolas,monospace;white-space:nowrap}.legend .held{border-color:var(--gold)}
@media(max-width:700px){.chapter-picker{align-items:stretch;flex-direction:column;gap:6px}.chapter-picker select{min-width:0;width:100%;font-size:12px}.tracking-detail{grid-template-columns:1fr;padding:16px;gap:16px}.bookmarks{padding-inline:16px}.chapter-description{font-size:12px}}

#signal-crop{display:flex;align-items:center;gap:12px;margin:9px 0}#signal-zoom{height:90px;width:auto;max-width:110px;image-rendering:pixelated;border:1px solid #87724f;border-radius:5px}#signal-crop figcaption{font-size:10px;color:var(--muted)}