html,body,#root{width:100%;height:100%;margin:0}*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;overflow:hidden}.game{width:100vw;height:100vh;position:relative}.game-container{width:100%;height:100%}.game-container canvas{display:block}.ui{z-index:10;color:#fff;text-shadow:0 2px 4px #000;position:absolute;top:20px;left:20px}.ui h1{margin:0 0 10px;font-size:28px}.score{margin-bottom:8px;font-size:24px;font-weight:700}.controls{font-size:16px}