:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa}.shell{min-height:100vh;display:grid;place-items:center;padding:2rem}.game-container{display:flex;flex-direction:column;align-items:center;gap:1rem}.game-canvas{border:2px solid rgba(255,255,255,.15);border-radius:8px;outline:none;image-rendering:pixelated;cursor:default}