:root{--bg:#f6f7f9;--card:#fff;--text:#2b3544;--muted:#6c7787;--faint:#9ca6b4;--border:#e3e7ee;--primary:#5b7db1;--primary-h:#4d6ea0;--primary-soft:#edf2f9;--danger:#b85c63;--danger-soft:#fbefef}
@media (prefers-color-scheme:dark){:root{--bg:#11141a;--card:#171b22;--text:#e3e8ef;--muted:#98a3b3;--faint:#687384;--border:#2a313c;--primary:#8aaee3;--primary-h:#a3c0ee;--primary-soft:#1b2433;--danger:#e08e94;--danger-soft:#2a191b}}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font:15px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--text);-webkit-font-smoothing:antialiased;
  background:radial-gradient(900px 480px at 12% -8%,var(--primary-soft),transparent 70%),radial-gradient(700px 420px at 100% 110%,var(--primary-soft),transparent 70%),var(--bg)}
.wrap{min-height:100%;display:grid;place-items:center;padding:24px}
.card{width:100%;max-width:410px;background:var(--card);border:1px solid var(--border);border-radius:18px;padding:36px 34px 30px;box-shadow:0 18px 46px -22px rgba(31,41,55,.28)}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;margin-bottom:26px;min-height:40px}
.brand-img{display:block;max-height:44px;max-width:210px;width:auto;height:auto}
@media (prefers-color-scheme:dark){.brand-img:not(.has-dark){background:#fff;padding:6px 10px;border-radius:10px}}
.logo{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--primary),color-mix(in srgb,var(--primary) 55%,#fff))}
h1{font-size:21px;font-weight:600;margin:0 0 4px;letter-spacing:-.01em}
.sub{margin:0 0 22px;color:var(--muted)}
label{display:block;font-size:13px;font-weight:500;margin:16px 0 6px}
input{width:100%;font:inherit;color:inherit;background:transparent;border:1px solid var(--border);border-radius:10px;padding:11px 13px;outline:none;transition:border-color .12s,box-shadow .12s}
input:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 16%,transparent)}
button{width:100%;margin-top:22px;padding:12px;border:0;border-radius:10px;background:var(--primary);color:#fff;font:inherit;font-weight:500;cursor:pointer;transition:background .12s}
button:hover{background:var(--primary-h)}button:disabled{opacity:.6;cursor:wait}
.err{margin:16px 0 0;padding:10px 13px;border-radius:9px;background:var(--danger-soft);color:var(--danger);font-size:14px}
.foot{margin:24px 0 0;font-size:12px;color:var(--faint);text-align:center}
[hidden]{display:none!important}
.brand-mark{display:flex;align-items:center;gap:10px;font-weight:600;font-size:17px}