:root{--bg-color:#000;--text-color:#fff}*{box-sizing:border-box}body,html{background-color:var(--bg-color);width:100%;height:100%;color:var(--text-color);overscroll-behavior:none;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow:hidden}#game-canvas{z-index:1;width:100vw;height:100vh;display:block;position:absolute;top:0;left:0}#ui-layer{z-index:10;pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0}.controls{pointer-events:auto;-webkit-backdrop-filter:blur(10px);background:#ffffff1a;border:1px solid #fff3;border-radius:12px;flex-direction:column;gap:10px;padding:1rem 2rem;display:flex;position:absolute;bottom:2rem;left:50%;transform:translate(-50%)}#speedometer{text-shadow:0 2px 4px #00000080;pointer-events:none;font-size:2rem;font-weight:700;position:absolute;top:2rem;right:2rem}