:root{--bg:#f6f6f4;--panel:#fff;--text:#1b1b1a;--muted:#6b6b66;--border:#dcdcd6;--accent:#2458d3;--accent-text:#fff;--error-bg:#fdecea;--error-text:#8a1c12;--ok:#1d7a3a}@media (prefers-color-scheme:dark){:root{--bg:#151514;--panel:#1f1f1d;--text:#ececea;--muted:#a3a39c;--border:#3a3a36;--accent:#6d95f2;--accent-text:#0d1020;--error-bg:#3b1714;--error-text:#ffb4aa;--ok:#6fd28f}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}main{max-width:760px;margin:0 auto;padding:32px 16px 64px}h1{margin:0 0 4px;font-size:1.6rem}.lede{color:var(--muted);margin:0 0 28px}form,.result{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:20px}.field{margin-bottom:22px}.field>label,.field>.label{margin-bottom:6px;font-weight:600;display:block}.hint{color:var(--muted);margin:4px 0 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