:root{color-scheme:dark;font-family:Arial,Helvetica,sans-serif;color:#fff;background:#090909;--yellow:#ffe12e}*{box-sizing:border-box}body{margin:0;overflow:hidden}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:default;filter:grayscale(1);opacity:.45}[hidden]{display:none!important}button:focus-visible,.dropzone:focus-visible{outline:3px solid #ffd600;outline-offset:4px}
.arcade{position:fixed;inset:0;background:#000}#screen{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;image-rendering:pixelated;outline:none;opacity:0}.playing #screen{opacity:1}.idle-scene{position:absolute;inset:0;overflow:hidden;background:radial-gradient(ellipse at 50% 30%,#343638,transparent 70%),#101112}.playing .idle-scene{display:none}.horizon{position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 3px,#0002 3px 4px)}.track{position:absolute;left:-10%;right:-10%;bottom:-18%;height:45%;background:conic-gradient(#ffffff06 25%,transparent 0 50%,#ffffff06 0 75%,transparent 0) 0 0/80px 80px;transform:perspective(400px) rotateX(45deg)}.track-number{position:absolute;right:4%;top:15%;font:italic 900 32vw Impact,'Arial Black',sans-serif;color:#ffffff02}
.fps{position:fixed;right:18px;top:15px;display:flex;gap:5px;align-items:baseline;font-size:10px;font-variant-numeric:tabular-nums;color:#ffffff64;text-shadow:0 1px 3px #000;z-index:2;pointer-events:none}.fps span:first-child{font-size:12px}.launcher-open .fps{opacity:0}.arcade-tools{position:absolute;left:18px;bottom:18px;display:flex;gap:6px;z-index:3;opacity:0;transition:opacity .25s}.playing.hud-visible .arcade-tools,.arcade-tools:focus-within,.arcade-tools:hover{opacity:1}.arcade-tools button{display:grid;place-items:center;width:38px;height:38px;background:#111c;border:1px solid #ffffff40;border-radius:3px;color:#eee;font-size:20px}.arcade-tools button:hover{color:var(--yellow);border-color:var(--yellow)}
.launcher{position:fixed;inset:0;z-index:10;overflow-y:auto;background:#050505ad;backdrop-filter:blur(7px);display:flex;padding:22px 20px;overscroll-behavior:contain}.launcher-content{width:min(100%,640px);margin:auto;animation:arrival .3s ease both}.rom-modal{position:relative;padding:22px 34px 19px;color:#171717;background:linear-gradient(115deg,#fff,#e9e9e4);border:4px solid #b4b6b7;border-radius:7px;box-shadow:0 0 0 2px #111,0 0 0 4px #ededeb,0 0 0 6px #373737,0 24px 70px #0009,inset 0 0 0 2px #fff;overflow:hidden;text-align:center}.rom-modal::before,.rom-modal::after{content:'';position:absolute;width:5px;height:5px;background:#565656;border-radius:50%;box-shadow:0 1px 0 #fff;top:9px;left:9px}.rom-modal::after{left:auto;right:9px}.modal-stripe{position:absolute;inset:0 0 auto;height:6px;background:linear-gradient(#fff22e 0 40%,#f5aa00 40% 70%,#da391b 70%)}.edition{display:flex;justify-content:center;align-items:center;gap:12px;font-size:9px;font-weight:900;letter-spacing:.2em;color:#444}.checkers{width:30px;height:12px;background:conic-gradient(#222 25%,#ddd 0 50%,#222 0 75%,#ddd 0) 0 0/8px 8px}.game-logo{margin:12px auto 10px;width:min(100%,260px);line-height:0}.game-logo img{display:block;width:100%;height:auto}.headline{display:inline-block;margin:0 0 9px;padding:2px 24px 4px;background:linear-gradient(#e90000,#a00000);border:2px solid #ffdf31;outline:2px solid #181818;box-shadow:0 0 0 4px #aaa;font:italic 700 27px Georgia,'Times New Roman',serif;color:#fff6ac;text-shadow:1px 2px 0 #731010;line-height:1.1}.message{font-size:12px;line-height:1.5;color:#4b4b47;margin:5px 0 15px;min-height:18px}.dropzone{position:relative;display:flex;align-items:center;gap:14px;padding:15px 17px;border:2px solid #191919;border-radius:3px;background:linear-gradient(#fff,#ededeb);box-shadow:inset 0 0 0 2px #fff,0 3px 0 #aaa;text-align:left;cursor:pointer;transition:background .15s}.dropzone:hover,.dropzone.drag{background:#fff7bd}.dropzone input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.dropzone strong{display:block;font-size:16px;font-weight:900;text-transform:uppercase;font-stretch:condensed;overflow-wrap:anywhere}.dropzone small{display:block;margin-top:4px;color:#62625c;font-size:11px}.file-icon{font-size:30px;font-weight:900;color:#d00}.file-arrow{margin-left:auto;font-size:24px;font-weight:900;color:#d00}.rom-meta{font-size:10px;line-height:1.6;color:#64645e;margin:9px 0 12px;overflow-wrap:anywhere}.launch-options{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;font-size:10px;color:#4b4b45;text-align:left}.launch-options label{display:flex;align-items:center;gap:7px;white-space:nowrap}.launch-options input{accent-color:#bb1717;width:13px;height:13px;margin:0}#status{text-align:right;font-size:9px;max-width:47%}.ready #status{color:#176b2b}.launch-btn{width:100%;min-height:44px;border:2px solid #121212;border-radius:3px;background:linear-gradient(#ffef53,#ffc400);color:#111;display:flex;align-items:center;justify-content:center;gap:24px;font-weight:900;text-transform:uppercase;font-size:18px;font-style:italic;box-shadow:inset 0 0 0 2px #fff19a,0 3px 0 #8d6500;transition:filter .15s,transform .15s}.launch-btn:hover:enabled{filter:brightness(1.07);transform:translateY(-1px)}.launch-btn:active:enabled{transform:translateY(2px);box-shadow:inset 0 0 0 2px #fff19a,0 1px 0 #8d6500}.launch-btn span:last-child{font-size:26px;color:#c00}.first-run{font-size:10px;line-height:1.6;color:#5a5a54;margin:13px 0 0}.close-btn{position:absolute;right:17px;top:15px;border:1px solid #666;background:#fff;color:#111;font-size:24px;line-height:1;width:28px;height:28px;z-index:1}
.controls-guide{position:relative;padding:20px 4px 0;color:#c9c9c4}.guide-heading{display:flex;align-items:center;gap:13px;font-size:10px;letter-spacing:.16em;color:#ffe12e;font-weight:900}.guide-rule{flex:1;height:8px;background:conic-gradient(#aaa 25%,transparent 0 50%,#aaa 0 75%,transparent 0) 0 0/8px 8px;opacity:.45}.guide-columns{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin:12px 0}.guide-columns h2{font-size:12px;text-transform:uppercase;font-style:italic;color:#fff;margin:0 0 9px;display:flex;align-items:center;gap:8px}.guide-columns h2 span{color:#ffe12e;font-size:14px}.guide-columns dl{margin:0;display:grid;gap:6px}.guide-columns dl>div{display:flex;justify-content:space-between;gap:9px;align-items:center;font-size:10px}.guide-columns dt{color:#bababa}.guide-columns dd{margin:0;white-space:nowrap;color:#eee;font-size:10px}kbd{display:inline-block;padding:2px 4px;min-width:16px;border:1px solid #9a9a95;border-radius:2px;background:linear-gradient(#eee,#ccc);color:#171717;font:bold 9px Arial,sans-serif;text-align:center;margin-left:2px;box-shadow:0 1px 0 #555}.service-note{display:flex;align-items:flex-start;gap:10px;margin:12px 0 0;padding-top:11px;border-top:1px solid #ffffff2b;font-size:10px;line-height:1.6;color:#bcbcb7}.service-note>kbd{padding:4px 6px;background:#ffe12e;border-color:#fff0a4;flex-shrink:0}.service-note b{font-weight:700;color:#fff}.guide-footer{text-align:center;font-size:9px;color:#a8a8a3;margin:10px 0 0}.guide-footer kbd{font-size:8px}@keyframes arrival{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(min-height:900px){.launcher{padding:35px 20px}.rom-modal{padding-top:28px;padding-bottom:25px}.game-logo{width:320px;margin:16px auto}.controls-guide{padding-top:25px}.guide-columns{margin:17px 0}.guide-columns dl{gap:9px}}
@media(max-width:520px){.launcher{padding:18px 17px}.rom-modal{padding:23px 18px 18px;border-width:3px}.edition{font-size:8px;letter-spacing:.12em;gap:8px}.checkers{width:22px}.game-logo{width:240px;max-width:90%;margin:15px auto}.headline{font-size:25px}.message{font-size:11px}.dropzone{padding:14px 12px;gap:10px}.dropzone strong{font-size:14px}.launch-options{font-size:9px}.guide-columns{grid-template-columns:1fr;gap:17px}.guide-columns dl{gap:8px}.controls-guide{padding-top:22px}.fps{top:10px;right:12px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media(min-width:521px) and (max-height:850px){.launcher{padding:18px 20px}.rom-modal{padding-top:18px;padding-bottom:15px}.game-logo{width:230px;margin:9px auto}.message{margin-bottom:11px}.first-run{margin-top:10px}.controls-guide{padding-top:16px}.guide-columns{margin:10px 0}.guide-columns dl{gap:5px}.service-note{margin-top:10px;padding-top:9px}.guide-footer{margin-top:8px}}
.game-logo{width:100%;padding:6px 0;background:#101010;border:2px solid #656565;box-shadow:inset 0 0 0 1px #222}.game-logo img{width:min(100%,280px);margin:auto}.edition{color:#ab0909}.message{margin-top:10px}
@media(min-width:521px) and (max-height:850px){.game-logo{width:100%;padding:5px 0;margin:9px auto}.game-logo img{width:260px;max-width:100%}.dropzone{padding-top:12px;padding-bottom:12px}.rom-modal{padding-bottom:12px}.message{margin-top:8px;margin-bottom:10px}.rom-meta{margin-bottom:9px}.first-run{margin-top:9px}}
@media(max-width:520px){.game-logo{max-width:100%;width:100%;padding:9px}.game-logo img{width:250px}.message{margin-top:10px}}
.game-logo{background:transparent;border:0;box-shadow:none;padding:0}.game-logo img{width:min(100%,280px)}.display-mode{display:flex;align-items:center;gap:9px;font-weight:700;color:#666}.display-mode .selected{color:#151515}.mode-switch{position:relative;flex-shrink:0;width:40px;height:21px;padding:2px;border:1px solid #555;border-radius:12px;background:#aaa;box-shadow:inset 0 1px 3px #0003}.mode-switch span{display:block;width:15px;height:15px;background:#fff;border:1px solid #777;border-radius:50%;transition:transform .15s;box-shadow:0 1px 2px #0004}.mode-switch[aria-checked=true]{background:#ffd600}.mode-switch[aria-checked=true] span{transform:translateX(18px)}.mode-description{font-size:9px;color:#5a5a54;text-align:left;margin:-5px 0 12px}.launch-options{margin-bottom:10px}.game-logo+.message{margin-top:10px}#screen.enhanced{object-fit:fill;image-rendering:auto}
@media(min-width:521px) and (max-height:850px){.game-logo{padding:0}.game-logo img{width:250px}.mode-description{margin-bottom:10px}}
@media(max-width:520px){.game-logo{padding:0}.display-mode{gap:7px}}
.touch-controls,.touch-guide{display:none}.touch-controls{position:absolute;inset:0;z-index:4;pointer-events:none;user-select:none;-webkit-user-select:none}.touch-controls button,.steering-pad{pointer-events:auto;touch-action:none;-webkit-tap-highlight-color:transparent}.touch-controls button{min-width:44px;min-height:44px;padding:9px 12px;color:#fff;background:#1119;border:1px solid #ffffff42;border-radius:10px;font-weight:800;font-size:10px;opacity:.58}.touch-controls button.pressed,.touch-controls button:active{opacity:1;background:#ffe12ec7;color:#111;border-color:#ffe12e}.touch-top{position:absolute;top:max(12px,env(safe-area-inset-top));left:max(14px,env(safe-area-inset-left));right:max(14px,env(safe-area-inset-right));display:flex;justify-content:space-between;gap:12px}.touch-top>[data-menu]{font-size:18px}.touch-actions{display:flex;gap:6px}.touch-service{position:absolute;right:max(14px,env(safe-area-inset-right));top:68px;display:flex;gap:5px;flex-wrap:wrap;max-width:300px}.steering-pad{position:absolute;bottom:max(22px,env(safe-area-inset-bottom));left:max(18px,env(safe-area-inset-left));width:148px;height:74px;display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border:1px solid #ffffff3b;border-radius:38px;background:#1116;color:#fff7;font-size:32px}.steering-knob{display:grid;place-items:center;width:48px;height:48px;flex-shrink:0;border-radius:50%;font-size:22px;background:#ffffff25;border:1px solid #ffffff40;color:#ffed79;will-change:transform}.touch-pedals{position:absolute;right:max(18px,env(safe-area-inset-right));bottom:max(22px,env(safe-area-inset-bottom));display:flex;align-items:flex-end;gap:9px}.touch-pedals button[data-action=gas]{width:74px;height:84px;border-radius:25px 25px 12px 12px;border-color:#ffe12e66;color:#ffe979}.touch-pedals button[data-action=brake]{width:62px;height:62px}.touch-gears{position:absolute;right:max(18px,env(safe-area-inset-right));bottom:120px;display:flex;align-items:center;gap:8px;color:#fff8;font:bold 12px Arial}.touch-gears button{min-width:44px;font-size:21px;padding:6px}.rotate-hint{display:none;position:absolute;bottom:160px;left:0;right:0;text-align:center;color:#ffffff60;font-size:10px;pointer-events:none}.touch-guide{font-size:10px;line-height:1.7;color:#c9c9c4;border-top:1px solid #ffffff25;padding-top:11px}
@media(max-width:1100px){.touch-device.playing:not(.launcher-open) .touch-controls{display:block}.touch-device .touch-guide{display:block}.touch-device .arcade-tools{display:none}.touch-device .fps{top:72px;right:max(16px,env(safe-area-inset-right))}.touch-device .launcher{padding-left:max(18px,env(safe-area-inset-left));padding-right:max(18px,env(safe-area-inset-right))}}
@media(max-width:600px) and (orientation:portrait){.touch-device .rotate-hint{display:block}.touch-gears{right:18px;bottom:122px}}
@media(orientation:landscape) and (max-height:500px){.steering-pad{bottom:max(14px,env(safe-area-inset-bottom));height:68px}.touch-pedals{bottom:max(14px,env(safe-area-inset-bottom))}.touch-pedals button[data-action=gas]{height:76px}.touch-gears{bottom:106px}}
@media(max-width:600px) and (orientation:portrait){.rotate-hint{bottom:185px}}
.arcade,.arcade *{touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}
.touch-top [data-menu],.touch-top [data-sound]{font-size:18px}