*{box-sizing:border-box}
:root{--bg:#080a0f;--panel:#11151d;--line:#28303c;--text:#f4f7fb;--muted:#8993a3;--accent:#55e38c}
body{margin:0;background:radial-gradient(circle at 50% 0,#18212a,#080a0f 55%);color:var(--text);font-family:Inter,system-ui,Arial,sans-serif;min-height:100vh}
.hidden{display:none!important}.screen{min-height:100vh;display:grid;place-items:center;padding:20px}.panel{width:min(420px,100%);background:rgba(17,21,29,.96);border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:0 20px 70px #0008}
.logo{font-size:25px;font-weight:900;letter-spacing:2px}.logo span{color:var(--accent);margin-left:5px}.muted{color:var(--muted);font-size:11px;letter-spacing:2px}
h1{margin:10px 0 4px;font-size:34px}h2{font-size:28px}p{line-height:1.5}
input{width:100%;padding:15px;border-radius:12px;border:1px solid var(--line);background:#090c12;color:white;font-size:16px;margin:12px 0}
button{border:1px solid var(--line);background:#171d27;color:white;border-radius:12px;padding:13px 18px;font-weight:800;cursor:pointer;min-height:46px}
button:hover{border-color:#475464}button:active{transform:translateY(1px)}
#unlock,.gas{background:var(--accent);color:#07120b;border-color:var(--accent)}
.error{color:#ff7777;min-height:22px;font-size:13px}
main{max-width:900px;margin:auto;padding:16px}
header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}header div{display:flex;gap:14px;align-items:center}header span{font-size:11px;color:var(--muted);letter-spacing:1.5px}
.hud{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:10px}.hud div{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 12px}.hud small{display:block;color:var(--muted);font-size:9px}.hud strong{font-size:24px}.hud em{font-size:9px;color:var(--muted);font-style:normal;margin-left:4px}
.race-wrap{position:relative;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#0d1015}
canvas{display:block;width:100%;height:auto;background:#10151a}
.mission{position:absolute;top:12px;left:12px;background:#080a0dcc;border:1px solid #ffffff18;border-radius:10px;padding:9px 12px;font-size:12px}.mission b{display:block;color:var(--accent);font-size:11px}.mission span{color:#c8ced8}
.finish{position:absolute;inset:0;background:#05070bd9;display:grid;place-items:center;text-align:center}.finish .panel{box-shadow:none}
.controls{display:grid;grid-template-columns:1fr 1fr 1fr;gap:9px;margin-top:10px}.controls .gas{grid-column:1/-1}.controls button{font-size:18px;touch-action:none}
.help{text-align:center;color:var(--muted);font-size:11px}
@media(max-width:520px){main{padding:10px}.hud strong{font-size:20px}.logo{font-size:20px}.mission span{display:none}.help{font-size:10px}}