html,body{margin:0;width:100%;height:100%;overflow:hidden;background:#101923}#game{width:100%;height:100%;touch-action:none}canvas{display:block;margin:auto;box-shadow:0 0 60px #0009}#viewport-gate{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:20px;box-sizing:border-box;overflow:auto;background:#101923;color:#eef4fa;font:18px/1.55 system-ui,sans-serif}#viewport-gate[hidden]{display:none}#viewport-gate>div{width:min(100%,520px)}#viewport-gate h1{margin:0 0 12px;font-size:30px}#viewport-gate p{margin:0 0 20px}#viewport-gate button{min-height:48px;min-width:180px;padding:10px 18px;border:2px solid #f5cf83;border-radius:8px;background:#e6ad57;color:#17232d;font:600 18px/1.3 system-ui,sans-serif;cursor:pointer}#viewport-gate button:focus-visible{outline:3px solid white;outline-offset:4px}