@font-face{font-family:RunMono;src:local("SFMono-Regular"),local("Menlo"),local("Consolas");font-display:swap}
:root{--paper:#f4f4ef;--ink:#242729;--muted:#8b8e8b;--line:#dddfd8;--red:#e72839;--white:#fcfcf9;--mono:RunMono,"Courier New",monospace;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.3}button:focus-visible,a:focus-visible,canvas:focus-visible{outline:2px solid var(--red);outline-offset:5px}a{color:inherit}button{color:inherit}svg{display:block}.page{max-width:1280px;padding:0 52px;margin:auto}.site-header{height:99px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:850;font-size:18px;letter-spacing:1.5px}.brand-run{font-weight:400;margin-left:5px}.brand-mark{position:relative;background:var(--red);color:white;width:35px;height:35px;display:grid;place-items:center;font-style:italic;font-size:27px;font-weight:900;letter-spacing:-3px;padding-right:5px}.brand-mark span{position:absolute;font-size:15px;right:2px;top:0;line-height:16px}.edition{font-family:var(--mono);font-size:10px;letter-spacing:1.5px;display:flex;gap:10px;align-items:center}.edition-number{color:#a5a7a1;margin-left:12px}.status-dot{display:inline-block;width:5px;height:5px;flex-shrink:0;background:#7c8971;border-radius:50%}.intro{display:flex;justify-content:space-between;align-items:center;padding:49px 0 36px}.eyebrow{font-family:var(--mono);font-size:9px;letter-spacing:1.9px;color:#888c84;margin:0 0 13px}h1{font-size:46px;letter-spacing:-2.5px;margin:0;line-height:1.3;font-weight:800;display:flex;align-items:center}h1 span{color:var(--red)}h1 svg{margin-left:24px;width:46px;fill:none;stroke:var(--red);stroke-width:3}.intro-copy{font-size:12px;letter-spacing:.6px;color:#8a8e86;margin:14px 0 0}.hero-label{text-align:right;font-size:17px;font-weight:800;letter-spacing:-.4px;display:flex;flex-direction:column;line-height:1.35}.hero-label .label-top{color:#92968c}.hero-label i{width:22px;height:2px;background:var(--red);margin:13px 0 10px auto}.hero-label small{font-family:var(--mono);font-size:8px;color:#898d83;font-weight:400;letter-spacing:1.2px}.game-shell{background:var(--white);border:1px solid #d4d8cf;border-radius:5px;overflow:hidden;box-shadow:0 6px 20px #252b2410}.game-toolbar{height:48px;padding:0 22px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #eaebe5}.track{font-size:10px;letter-spacing:.9px;display:flex;gap:10px;align-items:center}.live-square{width:5px;height:5px;background:var(--red)}.track-code{font-family:var(--mono);font-size:8px;color:#a2a59b;letter-spacing:1.4px;margin-left:4px}.toolbar-actions{display:flex;align-items:center;gap:16px}.icon-button{border:0;background:none;padding:3px;width:23px;height:25px;color:#858a80;display:grid;place-items:center}.icon-button:hover{color:var(--red)}.icon-button svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.stage{position:relative;height:380px;overflow:hidden;background:#fcfcf9;isolation:isolate;transition:background .7s;color:var(--ink)}canvas{display:block;width:100%;height:100%;touch-action:none;image-rendering:pixelated;outline:none!important}.scoreboard{position:absolute;right:28px;top:26px;display:flex;align-items:center;gap:27px;font-family:var(--mono);letter-spacing:2px;font-size:16px;pointer-events:none}.scoreboard b{font-weight:400}.scoreboard strong{font-weight:500}.best-label{color:#9d9f96;font-size:13px}.scene-label{position:absolute;left:25px;top:26px;display:flex;align-items:center;gap:9px;font-family:var(--mono);font-size:8px;letter-spacing:1.5px;color:#9d9f96;pointer-events:none}.scene-label>span:first-child{font-size:15px;line-height:18px}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;padding-bottom:37px}.overlay[hidden]{display:none}.overlay-inner{display:flex;align-items:center;flex-direction:column;text-align:center;position:relative;z-index:1;pointer-events:auto;padding:20px 34px}.overlay-inner:before{content:"";position:absolute;z-index:-1;inset:-12px -30px;background:radial-gradient(ellipse,#fcfcf9 35%,#fcfcf9df 65%,#fcfcf900 75%);pointer-events:none}.overlay-eyebrow{font-family:var(--mono);font-size:8px;letter-spacing:2.3px;color:#8c9086;margin-bottom:8px}.overlay h2{font-size:29px;letter-spacing:3px;margin:0;font-weight:750}.overlay p{font-size:11px;color:#95988f;letter-spacing:1px;margin:12px 0 23px}.primary-button{border:0;background:var(--red);color:white;border-radius:3px;min-width:165px;height:42px;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:0 20px;font-size:12px;letter-spacing:1px;box-shadow:0 4px 0 #bd1c2a;transition:background .15s,transform .15s}.primary-button:hover{background:#d71d2e;transform:translateY(-1px)}.primary-button:active{transform:translateY(2px);box-shadow:0 2px 0 #bd1c2a}.primary-button svg{width:17px;fill:none;stroke:currentColor;stroke-width:1.5}.start-hint{font-size:9px;color:#9da095;margin-top:16px;letter-spacing:.5px}.start-hint kbd{border:0;box-shadow:none;background:none;padding:0 3px;font-size:9px;color:#7b7f74}kbd{display:inline-flex;justify-content:center;align-items:center;border:1px solid #d1d5cb;border-bottom-width:2px;border-radius:4px;min-width:27px;height:25px;padding:0 7px;background:#f9f9f4;font-family:var(--mono);font-size:9px;color:#596053;white-space:nowrap}.dashboard{height:42px;padding:0 23px;display:flex;align-items:center;justify-content:space-between;font-size:9px;letter-spacing:.5px;border-top:1px solid #e7e9e0;background:#f9faf5}.system-status{display:flex;align-items:center;gap:8px;color:#7e8775}.dashboard-right{display:flex;align-items:center;gap:17px;color:#9aa08f}.speed-label{font-family:var(--mono);font-size:8px;letter-spacing:1px}.speed-label b{font-weight:400;color:#5d6852;margin-left:7px;font-size:10px}.divider{height:10px;width:1px;background:#d9ded0}.instructions{display:flex;justify-content:space-between;padding:27px 4px;gap:20px}.instructions>div{display:flex;align-items:center;gap:9px;font-size:10px;white-space:nowrap}.instruction-number{font-family:var(--mono);color:#adb1a6;font-size:8px;margin-right:4px}.instructions small{color:#969d8d;display:block;font-size:8px;margin-top:3px;letter-spacing:.3px}.key-or{color:#acb0a5;font-size:9px}.game-note{display:flex;align-items:center;justify-content:center;gap:19px;margin:22px 0 42px}.game-note p{font-size:10px;color:#a1a698;letter-spacing:1.2px;margin:0}.game-note b{color:#7b8371;font-weight:400}.note-line{width:34px;height:1px;background:#dfe3d6}footer{border-top:1px solid var(--line);padding:23px 0 25px;display:flex;justify-content:space-between;font-family:var(--mono);font-size:8px;color:#9aa08f;letter-spacing:1px}footer>div{display:flex;gap:12px;align-items:center}footer button{background:none;border:0;font-size:9px;padding:0;color:#7f8872;letter-spacing:.4px}footer button span{color:var(--red);font-size:12px;margin-left:3px}.milestone{position:absolute;top:65px;right:28px;font-family:var(--mono);font-size:9px;letter-spacing:1.5px;color:var(--red);opacity:0;transition:opacity .2s;pointer-events:none}.milestone.show{opacity:1}.stage.night{background:#20272d;color:#e8ede8}.stage.night .overlay-inner:before{background:radial-gradient(ellipse,#20272d 35%,#20272ddd 65%,#20272d00 75%)}.stage.night .scoreboard .best-label,.stage.night .scene-label{color:#9aa89d}.stage.crashed canvas{animation:impact .22s ease-out}.game-shell:fullscreen,.game-shell.expanded{width:100vw;height:100dvh;background:var(--paper);display:flex;flex-direction:column;border:0;border-radius:0}.game-shell:fullscreen .stage,.game-shell.expanded .stage{flex:1;height:auto;max-height:none}.game-shell.expanded{position:fixed;inset:0;z-index:100}.game-shell:fullscreen .game-toolbar,.game-shell.expanded .game-toolbar{height:56px;flex-shrink:0}.game-shell:fullscreen .dashboard,.game-shell.expanded .dashboard{flex-shrink:0}dialog{border:1px solid var(--line);border-radius:8px;max-width:520px;width:calc(100% - 32px);padding:40px;color:var(--ink);background:var(--white);box-shadow:0 20px 80px #1113}dialog::backdrop{background:#151a1a66;backdrop-filter:blur(4px)}dialog h2{font-size:25px;margin:0 0 22px}dialog p{font-size:12px;line-height:1.9;color:#778070}dialog b{color:var(--ink)}dialog a{text-underline-offset:3px;color:#303a29}.dialog-close{position:absolute;right:16px;top:12px;font-size:27px;border:0;background:none;font-weight:300;color:#8b9385}.license-links{display:flex;gap:20px;font-size:10px;margin:22px 0}.legal-note{border-top:1px solid var(--line);padding-top:18px;font-size:10px!important;color:#929b89!important}.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}@keyframes impact{25%{transform:translateX(-4px)}75%{transform:translateX(3px)}}
@media(min-width:1500px){.page{padding-top:12px}.intro{padding-top:62px;padding-bottom:43px}.stage{height:420px}.game-note{margin-top:32px;margin-bottom:50px}}
@media(max-width:1000px){.page{padding:0 30px}.intro{padding-top:36px}h1{font-size:38px}.hero-label{font-size:15px}.instructions{gap:15px}.instructions small{font-size:7px}.instructions>div{gap:6px}.instruction-number{display:none}.stage{height:350px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}
/* Desktop browser edition. The vehicle is the visual focus. */
body{min-width:720px}.site-header{height:86px}.tesla-brand{gap:12px;letter-spacing:6px;font-size:23px;font-weight:600}.tesla-mark{width:28px;height:34px;fill:#e72839}.intro{padding:33px 0 30px;gap:20px}h1{font-size:43px;letter-spacing:-1.7px;white-space:nowrap}h1 span{font-size:.67em;font-weight:550;letter-spacing:-1px}h1 em{font-family:var(--mono);font-size:.62em;font-style:normal;margin-left:12px;letter-spacing:1px}.intro .eyebrow{font-family:inherit;letter-spacing:1.5px;font-size:11px;color:#7e847a;margin-bottom:12px}#model-preview{width:208px;height:72px;flex-shrink:0;image-rendering:pixelated;background:none}.game-shell{border-top:2px solid #e72839}.stage{height:400px;background:#eef1ed}.scene-label,.best-label{color:#778175}.overlay-inner:before{background:radial-gradient(ellipse,#eef1ed 35%,#eef1eddf 65%,#eef1ed00 75%)}.overlay p{color:#7f8979}.overlay-eyebrow{color:#828d7c}.instructions{padding:26px 4px 32px}.instructions>div{font-size:11px}.instructions small{font-size:9px}.track-code{color:#8a9582}footer{font-size:9px;padding:20px 0}.game-toolbar{background:#fcfcf9}
@media(max-width:1000px){h1{font-size:35px}.intro{gap:12px}.tesla-brand{font-size:21px}#model-preview{width:170px;height:60px}.stage{height:380px}.instructions{gap:12px}.instructions>div{font-size:10px}.instructions small{font-size:8px}}

/* Touch devices show only the game, with thumb-sized controls. */
.mobile-only,.touch-controls{display:none}
@media(max-width:760px),(max-height:500px) and (max-width:1100px),(pointer:coarse) and (max-width:1100px){
  body{min-width:0;overscroll-behavior:none;background:#eef1ed}
  .page{max-width:none;padding:0!important}
  .site-header,.intro,.instructions,footer,.dashboard,.track-code,.scene-label{display:none}
  .game-shell,.game-shell:fullscreen,.game-shell.expanded{width:100%;height:100svh;height:100dvh;min-height:260px;border:0;border-radius:0;box-shadow:none;display:flex;flex-direction:column;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);background:#eef1ed}
  .game-toolbar{height:56px!important;flex-shrink:0;padding:0 12px}
  .track{font-size:11px;gap:7px;white-space:nowrap}
  .toolbar-actions{gap:2px}
  .icon-button{width:44px;height:44px;font-size:26px;touch-action:manipulation}
  .mobile-only{display:grid}
  .stage,.game-shell:fullscreen .stage,.game-shell.expanded .stage{flex:1;min-height:170px;height:auto}
  .scoreboard{top:20px;right:18px;font-size:15px;gap:18px}
  .best-label{font-size:12px}
  .overlay{padding-bottom:0}
  .overlay-inner{padding:12px 18px;max-width:100%}
  .overlay-inner:before{inset:-10px}
  .stage:not([data-state="crashed"]) #overlay-copy{display:none}
  .stage:not([data-state="crashed"]) .primary-button{margin-top:22px}
  .overlay h2{font-size:25px}
  .overlay p{margin:10px 0 18px}
  .overlay-eyebrow{margin-bottom:8px}
  .primary-button{min-height:48px;touch-action:manipulation}
  .start-hint{font-size:11px;margin-top:14px}
  .touch-controls{display:flex;gap:14px;padding:12px 16px 16px;flex-shrink:0;background:#eef1ed;user-select:none;-webkit-user-select:none}
  .touch-controls button{flex:1;min-height:62px;border:1px solid #ccd3c6;border-radius:12px;background:#fcfcf9;color:#596053;font-size:24px;touch-action:none;-webkit-touch-callout:none}
  .touch-controls span{font-size:15px;margin-left:6px}
  #touch-jump{flex:1.6;background:var(--red);border-color:var(--red);color:white}
  .touch-controls button:active{filter:brightness(.9);transform:translateY(1px)}
  .milestone{top:46px;right:18px}
}
@media(max-height:500px) and (max-width:1100px){
  .game-toolbar{height:44px!important}
  .touch-controls{padding:6px 16px;gap:16px}
  .touch-controls button{min-height:44px}
  .overlay-eyebrow,.start-hint{display:none}
  .overlay h2{font-size:22px}
  .overlay p{margin:6px 0 10px}
  .primary-button{height:44px;min-height:44px}
}

.author-credit{display:block;font-size:9px;font-weight:400;letter-spacing:0;color:#8a9582;margin-top:4px;white-space:nowrap}

.rank-result{font-size:12px;margin:-9px 0 16px;color:#596053;line-height:1.6}
.rank-result[hidden]{display:none}
.text-button{border:0;background:none;color:var(--red);font-size:11px;text-decoration:underline;text-underline-offset:3px;padding:5px 8px;min-height:32px}
#rank-list{padding:0;list-style:none;margin:16px 0;max-height:45dvh;overflow:auto}
#rank-list li{display:grid;grid-template-columns:40px 1fr auto;gap:8px;padding:12px 0;border-bottom:1px solid var(--line);font-size:12px}
#rank-list li span:first-child{color:var(--red);font-family:var(--mono)}
#rank-dialog{max-height:90dvh;overflow:auto}
.stage.night .rank-result{color:#bcc7b7}
@media(max-height:500px) and (max-width:1100px){
  .stage[data-state="crashed"] .overlay-inner{padding:4px 18px}
  .stage[data-state="crashed"] .overlay h2{font-size:18px}
  .stage[data-state="crashed"] .overlay p{margin:4px 0 8px}
  .rank-result{margin:0 0 6px;font-size:11px;line-height:1.3}
  #rank-dialog{padding:24px}
}