.game-container{height:100vh;display:flex;justify-content:center;align-items:center;background:radial-gradient(circle at center,#1a0a2e,#000 90%)}#ui-layer{position:relative;padding:2rem;text-align:center;max-width:800px;width:100%}canvas{background:#000c;border:2px solid var(--primary-color);box-shadow:0 0 20px #0ff3;border-radius:4px;margin-top:1rem;width:100%;max-width:800px;aspect-ratio:16/9}