: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:#222;color:#fafafa}.game-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem}h1{margin:0;font-size:1.8rem;font-weight:600}.hud{font-size:1.1rem}canvas{border:2px solid white;background:#111}