:root { color-scheme: dark; font-family: system-ui, sans-serif; background: #11152d; color: #fff; }
* { box-sizing: border-box; }
html, body { margin: 0; width: 100%; height: 100%; overflow: hidden; }
#game { display: block; width: 100%; height: 100%; touch-action: none; outline: none; }
#loading { position: fixed; inset: 0; display: grid; place-content: center; padding: 24px; text-align: center; background: #11152d; }
#loading[hidden] { display: none; }