:root{--bg:#f8fafc;--surface:#ffffff;--border:#e2e8f0;--text:#0f172a;--text-muted:#64748b;--brand:#ea580c;--brand-dark:#c2410c}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--brand-dark);text-decoration:none}button{font:inherit;cursor:pointer}input,select,textarea{font:inherit;border:1px solid var(--border);border-radius:6px;padding:8px 10px;background:var(--surface)}