*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,system-ui,-apple-system,sans-serif}html,body{width:100%;height:100%;overflow:hidden;background:#000}canvas{display:block}#starter-screen,#gameover-screen{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:radial-gradient(circle at center,#141428eb,#000000f5);color:#fff;z-index:10;text-align:center;padding:20px}#gameover-screen{display:none}#starter-screen h1,#gameover-screen h1{font-size:2.6rem;letter-spacing:2px;text-shadow:0 0 20px rgba(255,90,90,.6)}#starter-screen p,#gameover-screen p{font-size:1.1rem;color:#cfd3ff}.controls-hint{display:flex;flex-direction:column;gap:6px;margin:10px 0;font-size:.95rem;color:#a9adcf}.controls-hint__slot{display:flex;align-items:center;gap:6px;margin-bottom:12px}.controls-hint--mobile{display:none}.controls-hint--desktop{display:block}@media (pointer: coarse),(hover: none){.controls-hint--desktop{display:none}.controls-hint--mobile{display:block}}kbd{background:#2a2a45;border:1px solid #4a4a75;border-radius:4px;padding:2px 8px;margin:0 2px;font-size:.85rem;box-shadow:0 2px #1a1a30}#start-button,#restart-button{margin-top:10px;padding:14px 36px;font-size:1.1rem;font-weight:700;letter-spacing:1px;color:#101020;background:linear-gradient(135deg,#ffd93d,#ff6b6b);border:none;border-radius:30px;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease;box-shadow:0 6px 20px #ff6b6b66}#start-button:hover,#restart-button:hover{transform:translateY(-2px) scale(1.03);box-shadow:0 10px 28px #ff6b6b8c}#final-score{font-weight:800;color:#ffd93d}#game-points,#game-speed{display:none;position:fixed;top:20px;padding:10px 18px;border-radius:14px;background:#0f0f1e8c;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#fff;font-weight:700;font-size:1.1rem;z-index:5;border:1px solid rgba(255,255,255,.12)}#game-points{left:20px}#game-points span{color:#ffd93d}#game-speed{right:20px;font-variant-numeric:tabular-nums}#game-speed span{color:#6ac5fe}#game-lives{display:none;position:fixed;top:70px;left:20px;gap:4px;font-size:1.3rem;z-index:5}.heart{filter:drop-shadow(0 0 4px rgba(255,0,60,.6))}#boost-meter{display:none;position:fixed;bottom:24px;left:50%;transform:translate(-50%);width:220px;z-index:5;text-align:center}#boost-label{font-size:.75rem;letter-spacing:2px;color:#cfd3ff;margin-bottom:4px;text-shadow:0 0 6px rgba(0,0,0,.8)}#boost-track{width:100%;height:12px;border-radius:8px;background:#ffffff26;overflow:hidden;border:1px solid rgba(255,255,255,.25)}#boost-fill{height:100%;width:100%;background:linear-gradient(90deg,#6ac5fe,#a06bff);transition:width .1s linear}#damage-flash{position:fixed;top:0;right:0;bottom:0;left:0;background:#ff000059;opacity:0;pointer-events:none;z-index:6}#damage-flash.flash-active{animation:flashFade .4s ease-out}@keyframes flashFade{0%{opacity:1}to{opacity:0}}#mobile-controls{display:none;position:fixed;bottom:72px;left:0;right:0;z-index:20;justify-content:space-around;align-items:center;pointer-events:none}#mobile-controls.active{display:none}.mobile-control-btn,#steer-left,#steer-right,#boost-button{display:flex;justify-content:center;align-items:center;pointer-events:auto;width:64px;height:64px;border-radius:50%;border:2px solid rgba(255,255,255,.35);background:#141428bf;color:#fff;font-size:32px;font-weight:700;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);touch-action:none}#boost-button{width:76px;height:76px;font-size:14px;background:linear-gradient(135deg,#6ac5fe,#a06bff)}#steer-left:active,#steer-right:active,#boost-button:active{transform:scale(.9)}@media (max-width: 768px){#mobile-controls.active{display:flex}}