:root { color-scheme: light; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color:#17232d; background:#eef3f5; }
* { box-sizing:border-box; }
body { min-height:100vh; margin:0; display:grid; place-items:center; padding:24px; background:linear-gradient(145deg,#e4eff0,#f8fafb); }
.auth-card { width:min(100%,460px); padding:32px; border:1px solid #d6dfe5; border-radius:16px; background:#fff; box-shadow:0 16px 46px rgb(17 42 51 / 12%); }
.auth-brand { display:flex; align-items:center; gap:10px; color:#0a4f55; }
.auth-brand span { display:grid; place-items:center; width:36px; height:36px; border-radius:10px; color:#fff; background:#12636a; font-weight:800; }
h1 { margin:24px 0 18px; font-size:26px; line-height:1.2; }
.auth-lead,.auth-help,.setup-steps { color:#52616d; line-height:1.55; }
.auth-form { display:grid; gap:14px; margin-top:18px; }
.auth-form label { display:grid; gap:6px; color:#52616d; font-size:13px; font-weight:650; }
.auth-form input { min-height:44px; padding:9px 11px; border:1px solid #b8c6cf; border-radius:8px; color:#17232d; background:#fff; font:inherit; }
.auth-form input:focus { outline:3px solid #a8d7e9; border-color:#087fdb; }
.auth-button { display:inline-flex; min-height:42px; align-items:center; justify-content:center; padding:9px 16px; border:1px solid #12636a; border-radius:8px; color:#fff; background:#12636a; font:inherit; font-weight:750; text-decoration:none; cursor:pointer; }
.auth-button.secondary { color:#0a4f55; background:#fff; }
.auth-error { padding:10px 12px; border:1px solid #a82f3c; border-radius:8px; color:#8a2330; background:#fbe9eb; }
.auth-link { margin-top:18px; text-align:center; }.auth-link a { color:#0a4f55; }
.secret-label { margin:20px 0 6px; color:#52616d; font-size:12px; font-weight:700; text-transform:uppercase; }
.secret { display:block; padding:12px; border-radius:8px; background:#edf2f5; font:700 17px ui-monospace,monospace; letter-spacing:.04em; overflow-wrap:anywhere; }
.recovery-codes { display:grid; grid-template-columns:1fr 1fr; gap:8px 24px; padding:16px 16px 16px 42px; border:1px solid #d6dfe5; border-radius:10px; background:#f7f9fa; font:700 14px ui-monospace,monospace; }
.auth-actions { display:flex; align-items:center; gap:10px; flex-wrap:wrap; }.auth-actions form { margin:0; }
@media (max-width:520px) { .auth-card { padding:22px; }.recovery-codes { grid-template-columns:1fr; } }