:root{--bg:#04060b;--panel:#0c101a94;--line:#ffffff14;--text:#e8edf3;--muted:#8b95a5;--accent:#00ffa3;--heat:#ff7a2f;--cold:#5ab8ff;--fil:#ff6b1a;font-family:Inter,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);margin:0;overflow:hidden}#viewport{position:fixed;inset:0}#viewport canvas{display:block}button{font:inherit;color:inherit;cursor:pointer}.panel{background:var(--panel);-webkit-backdrop-filter:blur(18px)saturate(140%);border:1px solid var(--line);border-radius:18px;box-shadow:0 20px 60px #00000073,inset 0 1px #ffffff0d}.brand{text-align:center;pointer-events:none;position:fixed;top:22px;left:50%;transform:translate(-50%)}.logo{letter-spacing:.32em;justify-content:center;align-items:center;gap:12px;font-size:22px;font-weight:800;display:flex}.logo b{color:var(--accent);text-shadow:0 0 18px #00ffa3b3}.logo-mark{background:conic-gradient(from 0deg, var(--accent), var(--heat), var(--cold), 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