*{margin:0;padding:0;box-sizing:border-box}body{margin:0;padding:0;overflow:hidden;width:100vw;height:100vh;background-color:#2c3e50;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;touch-action:none;-webkit-user-select:none;user-select:none}#game-container{width:100%;height:100%;display:flex;justify-content:center;align-items:center}canvas{display:block;margin:0 auto}