:root{font-family:Cascadia Code,SFMono-Regular,Consolas,Microsoft YaHei,monospace;color:#eeeede;background:#0b0c0a;font-synthesis:none;font-variant-numeric:tabular-nums;--amber:#ffb800;--dim:#999c8d;--line:#ffffff26}*{box-sizing:border-box}body{margin:0;overflow:hidden}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;background:none;border:1px solid var(--line);cursor:pointer;min-height:44px;padding:12px 18px}button:hover{border-color:var(--amber);color:var(--amber)}button:focus-visible,a:focus-visible{outline:2px solid var(--amber);outline-offset:4px}button:disabled{cursor:not-allowed;opacity:.35}button:disabled:hover{color:inherit;border-color:var(--line)}[hidden]{display:none!important}#scene{position:fixed;inset:0}#scene canvas{display:block;width:100%;height:100%}.vignette{position:fixed;inset:0;pointer-events:none;background:linear-gradient(90deg,#0b0c0af7,#0b0c0aca 29%,#0b0c0a24 62%),linear-gradient(0deg,#0b0c0abd,transparent 26%,transparent 80%,#0b0c0a9c)}header{position:fixed;z-index:3;left:4.5vw;right:4.5vw;top:max(24px,env(safe-area-inset-top));display:flex;justify-content:space-between;align-items:center}.wordmark{font-size:20px;letter-spacing:4px;font-weight:700;color:#eeeede;text-decoration:none}.wordmark span{display:block;font-size:10px;letter-spacing:3px;font-weight:400;margin-top:5px;color:var(--dim)}.header-actions{display:flex;gap:8px}.header-actions button{font-size:12px;background:#0b0c0a70}.menu{position:fixed;z-index:2;left:7vw;top:18vh;width:min(440px,40vw)}.eyebrow{color:var(--amber);font-size:11px;letter-spacing:2px}.menu h1{font-size:clamp(32px,3.8vw,60px);font-weight:500;line-height:1.22;letter-spacing:-2px;margin:20px 0}.menu h1 span{color:var(--amber)}.intro{font-size:13px;line-height:1.9;color:#b6b8aa;margin-bottom:32px}.selection-info{display:flex;justify-content:space-between;font-size:11px;color:var(--dim);margin:0 0 12px}.selection-info 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var(--line);padding-top:15px;font-size:10px;color:var(--dim)}.hud-top{position:fixed;top:115px;left:6vw;right:6vw;display:flex;justify-content:space-between}.hud-top>div{display:flex;flex-direction:column;gap:10px}.hud-top span{font-size:11px;color:#c3c6b7}.hud-top strong{font-size:15px;font-weight:400}.distance{text-align:right}.distance strong{font-size:36px}.distance small{font-size:13px;color:var(--dim)}.route{position:fixed;top:210px;left:6vw;right:6vw;height:2px;background:#ffffff30}.route>span{position:absolute;top:12px;font-size:9px;color:#b7baac}.route>span:last-child{right:0}#route-zone{position:absolute;top:-3px;height:8px;background:var(--amber)}#route-car{position:absolute;top:-5px;width:3px;height:12px;background:#fff}.cue{position:fixed;top:260px;left:0;right:0;text-align:center;font-size:13px;letter-spacing:2px;color:#d0d5c9}.cue.highlight{color:var(--amber)}.dashboard{position:fixed;bottom:max(44px,env(safe-area-inset-bottom));left:6vw;right:6vw;display:flex;justify-content:space-between;align-items:flex-end}.speedometer{width:260px;position:relative}.speedometer svg{width:100%;overflow:visible}.speedometer path{fill:none;stroke-width:4;stroke-linecap:butt}.arc-track{stroke:#ffffff25}#arc{stroke:var(--amber);stroke-dasharray:0 100}.speed-reading{position:absolute;inset:35% 0 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small{font-size:10px;color:var(--dim)}#brake.pressed{background:var(--amber);color:#0b0c0a}#brake.pressed small{color:#0b0c0a}.input-hint{display:block;text-align:center;font-size:10px;color:var(--dim);margin-top:10px}.countdown{position:fixed;inset:0;display:grid;place-items:center;pointer-events:none;color:var(--amber);font-size:160px;background:#0b0c0a22}.modal{position:fixed;inset:0;z-index:5;display:flex;align-items:center;justify-content:center;background:#0b0c0acd;-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px);padding:24px}.dialog{width:min(540px,100%);max-height:90dvh;overflow:auto;background:#0b0c0a;border:1px solid var(--line);padding:36px}.dialog h2{font-size:26px;font-weight:400;line-height:1.5;letter-spacing:-1px;margin:16px 0}.subtle{color:var(--dim);font-size:12px;line-height:1.9}.instructions{padding:0;list-style:none;counter-reset:step;margin:24px 0}.instructions li{counter-increment:step;position:relative;padding:0 0 22px 34px;display:flex;flex-direction:column;gap:8px}.instructions li:before{content:"0" counter(step);position:absolute;left:0;top:1px;color:var(--amber);font-size:13px}.instructions b{font-size:13px;font-weight:400}.instructions span{font-size:12px;line-height:1.8;color:var(--dim)}.dialog .primary{margin-top:20px}.secondary{width:100%;margin-top:10px}.stars{display:flex;gap:8px;margin:16px 0}.stars svg{width:26px;height:26px;fill:none;stroke:#626657;stroke-width:1.5}.stars .earned{fill:var(--amber);stroke:var(--amber)}.result-stats{display:grid;grid-template-columns:1fr 1fr;gap:24px 16px;border-block:1px solid var(--line);padding:24px 0;margin-top:22px}.result-stats div{display:flex;flex-direction:column;gap:10px}.result-stats span{font-size:11px;color:var(--dim)}.result-stats strong{font-size:27px;font-weight:400}.result-stats small{font-size:10px;color:var(--dim)}.completion{color:var(--amber);font-size:12px;line-height:1.7}.graphics-error{position:absolute;left:55%;top:40%;width:35%;line-height:2;color:var(--amber)}@media(max-height:760px)and (min-width:701px){.menu{top:15vh}.menu h1{font-size:42px;margin:14px 0}.intro{margin-bottom:20px}.level-spec{padding:14px 0}.start{margin-top:12px}.car-caption{bottom:17vh}}@media(max-width:700px){header{left:20px;right:20px;top:max(18px,env(safe-area-inset-top))}.wordmark{font-size:15px}.header-actions button{padding:8px 10px;font-size:10px;min-height:38px}.vignette{background:linear-gradient(0deg,#0b0c0a,#0b0c0ae5 38%,#0b0c0a22 73%,#0b0c0a85)}.menu{inset:auto 24px 45px;width:auto}.menu h1{font-size:36px;line-height:1.15;margin:13px 0}.intro{font-size:11px;margin:0 0 18px}.eyebrow,.selection-info{font-size:10px}.level{min-height:58px}.level span{font-size:17px}.level-spec{padding:14px 0}.level-spec strong{font-size:21px}.start{margin-top:12px;min-height:48px}.text-button{min-height:34px;padding-top:9px;padding-bottom:8px}.car-caption{top:110px;bottom:auto;right:24px;gap:8px}.car-caption strong{font-size:12px}.car-caption>span,.car-caption small{font-size:9px}footer{left:24px;right:24px;bottom:14px;padding-top:9px;font-size:8px}footer span:first-child{display:none}.hud-top{top:105px;left:24px;right:24px}.hud-top strong{font-size:12px}.hud-top .distance strong{font-size:27px}.route{left:24px;right:24px;top:180px}.cue{top:220px;font-size:11px;letter-spacing:1px}.dashboard{left:20px;right:20px;bottom:max(26px,env(safe-area-inset-bottom))}.speedometer{width:170px}.speed-reading strong{font-size:49px}.brake-control{width:145px}#brake{min-height:91px}#brake>span{font-size:19px}.input-hint{font-size:9px}.dialog{padding:25px}.dialog h2{font-size:23px}.modal{padding:18px}.result-stats strong{font-size:24px}.graphics-error{left:20px;right:20px;top:23%;width:auto}}@media(max-width:700px)and (max-height:740px){.menu{bottom:33px}.menu h1{font-size:29px;margin:9px 0}.intro{margin-bottom:10px}.car-caption{top:90px}.level{min-height:48px;gap:4px;padding:7px 2px}.level-spec{padding:10px 0}.selection-info{margin-bottom:8px}.menu .eyebrow{font-size:9px}.menu .text-button{min-height:26px;padding-block:5px}}