html, body { margin: 0; height: 100%; background: #0b0d14; overflow: hidden; touch-action: none; }
#game { display: block; width: 100vw; height: 100vh; }
#build-version { position: fixed; right: 6px; bottom: 4px; font: 11px monospace; color: #fff6; pointer-events: none; }