body,html{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;touch-action:none;background-color:#0d0d0d;justify-content:center;align-items:center;height:100vh;margin:0;padding:0;display:flex;overflow:hidden}#game-container{touch-action:none;box-shadow:0 0 20px #00ff8033}canvas{-webkit-tap-highlight-color:transparent}