:root{--bg:#f7f7fb;--fg:#0f172a;--muted:#64748b;--card:#fff;--ring:#e2e8f0;--accent:#2563eb;--danger:#b91c1c;--ok:#166534}
*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;padding:24px 16px;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--fg);display:flex;align-items:center;justify-content:center}
.auth-card{width:min(430px,100%);background:var(--card);border:1px solid var(--ring);border-radius:24px;padding:24px;box-shadow:0 20px 50px rgba(15,23,42,.08)}
h1{font-size:1.45rem;margin:0 0 8px}.lead{margin:0 0 20px;color:var(--muted);line-height:1.45}.stack{display:grid;gap:12px}label{font-size:.9rem;font-weight:600}input{width:100%;font:inherit;padding:13px 14px;border:1px solid var(--ring);border-radius:13px;background:#fff;color:var(--fg)}
button,.button{appearance:none;border:0;border-radius:14px;padding:13px 15px;font:inherit;font-weight:700;cursor:pointer;text-align:center;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}.primary{background:var(--accent);color:#fff}.secondary{background:#fff;color:var(--fg);border:1px solid var(--ring)}.danger{background:#fff;color:var(--danger);border:1px solid #fecaca}.full{width:100%}.row{display:flex;gap:10px;flex-wrap:wrap}.row>*{flex:1}
.notice{padding:12px 14px;border-radius:13px;font-size:.92rem;line-height:1.4}.error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.success{background:#f0fdf4;color:var(--ok);border:1px solid #bbf7d0}.info{background:#eff6ff;color:#1e3a8a;border:1px solid #bfdbfe}.muted{color:var(--muted);font-size:.88rem}.divider{height:1px;background:var(--ring);margin:18px 0}.hidden{display:none!important}.spinner{opacity:.65;pointer-events:none}.top-actions{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:18px}.top-actions a{color:var(--accent);text-decoration:none;font-weight:600;font-size:.9rem}.passkey-list{display:grid;gap:8px}.passkey-item{border:1px solid var(--ring);border-radius:12px;padding:11px 12px}.passkey-item strong{display:block}.passkey-item span{font-size:.82rem;color:var(--muted)}