:root{--bg:#ffd500}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;background:var(--bg);overflow:hidden;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}#app,canvas{width:100%;height:100%;display:block}#loading{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;font:500 14px system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;letter-spacing:.08em;color:#000;animation:pulse 1.4s ease-in-out infinite;-webkit-user-select:none;user-select:none}@keyframes pulse{0%,to{opacity:.25}50%{opacity:.85}}