html,body{touch-action:none;overscroll-behavior:none;background:#000;height:100%;margin:0;padding:0;overflow:hidden}#game{width:100vw;height:100vh;display:block}#hud{color:#fff;z-index:10;text-shadow:0 0 6px #000;font-family:system-ui,sans-serif;font-size:clamp(18px,4vw,32px);font-weight:700;position:fixed;top:10px;left:10px}#difficulty-container{color:#fff;z-index:1000;background:#00000080;border-radius:6px;padding:6px 10px;font-family:sans-serif;position:absolute;bottom:10px;left:10px}#difficulty{color:#fff;background:#222;border:1px solid #555;border-radius:4px;padding:4px 6px}canvas{touch-action:none;display:block}