:root{--bg:#f4f6f8;--card:#fff;--ink:#14212b;--muted:#5b6b78;--navy:#004976;--line:#d9e0e6}
@media (prefers-color-scheme:dark){:root{--bg:#0e1419;--card:#17212a;--ink:#e8eef3;--muted:#9fb0bd;--navy:#4ea3d9;--line:#2a3742}}
*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:var(--bg);
color:var(--ink);font:16px/1.5 "Open Sans",system-ui,-apple-system,"Segoe UI",sans-serif;padding:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;max-width:440px;width:100%;padding:28px}
.eyebrow{margin:0 0 6px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--navy);font-weight:700}
h1{font-size:22px;margin:0 0 12px}.muted{color:var(--muted);font-size:14px}
form{display:flex;gap:10px;margin-top:20px}button,.btn{font:inherit;border-radius:8px;padding:10px 18px;cursor:pointer;
border:1px solid var(--line);background:transparent;color:var(--ink);text-decoration:none;display:inline-block}
.primary{background:var(--navy);border-color:var(--navy);color:#fff}