:root{--bg:#f5f6f8;--surface:#ffffff;--border:#e3e6ea;--text:#16191d;--muted:#646d78;--brand:#0d5bd4;--brand-dark:#0a49aa;--danger:#c0392b;--radius:10px}@media (prefers-color-scheme:dark){:root{--bg:#101318;--surface:#171b22;--border:#262b34;--text:#eef1f5;--muted:#99a2ad}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5}a{color:var(--brand)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{font-size:13px;color:var(--muted);font-weight:500}.field input{padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text);font-size:15px}.field input:focus{outline:2px solid var(--brand);outline-offset:1px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:11px 16px;border-radius:8px;border:1px solid transparent;font-size:15px;font-weight:500;cursor:pointer}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-outline{background:var(--surface);color:var(--text);border-color:var(--border)}.btn-outline:hover{border-color:var(--muted)}.alert{padding:10px 12px;border-radius:8px;font-size:14px;margin-bottom:14px;background:#fdecea;color:var(--danger);border:1px solid #f5c6c2}.divider{display:flex;align-items:center;gap:12px;margin:20px 0;color:var(--muted);font-size:13px}.divider:after,.divider:before{content:"";flex:1 1;height:1px;background:var(--border)}