*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:hidden}#game-container{position:relative;box-shadow:0 10px 40px #0000004d;border-radius:10px;overflow:hidden}#game-container canvas{display:block;border-radius:10px}