html,body{overscroll-behavior:none;background:var(--game-bg,#000);touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%;width:100%;height:100%;margin:0;padding:0;overflow:hidden}body{position:fixed;inset:0}#game{width:100%;height:100dvh;position:absolute;inset:0}#game canvas{outline:none;display:block}