:root{color:#e7e9ed;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:#15171b;font-family:system-ui,sans-serif}*{box-sizing:border-box}body{margin:0}.app{width:min(100%,1200px);margin:0 auto;padding:24px}.app-header{margin-bottom:20px}.controls{color:#a9b0bd;margin:8px 0 0;font-size:.875rem}h1{margin:0;font-size:1.25rem;font-weight:600}.game-canvas{aspect-ratio:16/9;background:#23262d;border-radius:8px;width:100%;overflow:hidden}.game-canvas canvas{display:block}@media (width<=600px){.app{padding:16px}}