:root{--bg:#f4f5f7;--panel:#fff;--border:#dfe2e7;--text:#1f2329;--muted:#667080;--accent:#e08a00;--accent-dark:#b86f00;--blue:#1971c2;--green:#2b8a3e;--red:#c92a2a;--warn-bg:#fff4d6;--radius:8px;color:var(--text);font-family:Segoe UI,system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;font-size:14px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg)}h1,h2,h3{margin:0;font-weight:600}h2{font-size:18px}h3{font-size:14px}p{margin:0 0 8px;line-height:1.45}button{font:inherit;cursor:pointer;border:1px solid var(--border);background:var(--panel);color:var(--text);border-radius:6px;padding:6px 12px}button:hover:not(:disabled){background:#f8f9fb;border-color:#b9bfc9}button:disabled{opacity:.5;cursor:default}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}button.primary:hover:not(:disabled){background:var(--accent-dark);border-color:var(--accent-dark)}button.link{color:var(--blue);background:0 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