:root{
  --bg:#f3f6f8;
  --ink:#102033;
  --muted:#627184;
  --line:#d8e1ea;
  --navy:#08192b;
  --blue:#1f6feb;
  --gold:#d8a514;
  --green:#168a64;
  --red:#c2413a;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg);letter-spacing:0}
body{min-height:100vh}
.login-shell{display:grid;grid-template-columns:minmax(300px,430px) minmax(0,1fr);min-height:100vh}
.identity{
  background:#08192b;color:#fff;padding:34px 30px;display:flex;flex-direction:column;justify-content:space-between;
}
.brand{font-weight:950;font-size:42px;line-height:.86;letter-spacing:0}
.brand small{display:block;margin-top:14px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#b9c7d6}
.identity-panel{border-top:1px solid rgba(255,255,255,.12);padding-top:22px}
.identity-panel h2{font-size:18px;margin:0 0 10px}
.identity-panel p{color:#c5d2e0;margin:0;line-height:1.55;font-size:14px}
.status{display:inline-flex;align-items:center;gap:8px;margin-top:18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:9px 11px;font-size:12px;font-weight:850;color:#e8f0f8}
.status span{width:8px;height:8px;border-radius:999px;background:#20c997;box-shadow:0 0 0 4px rgba(32,201,151,.15)}
.content{display:flex;align-items:center;padding:48px}
.login-card{width:min(520px,100%)}
.eyebrow{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:950;margin-bottom:10px}
h1{font-size:38px;line-height:1.05;margin:0 0 8px}
.subtitle{font-size:15px;color:var(--muted);margin:0 0 24px}
form{background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px;box-shadow:0 18px 45px rgba(24,36,52,.1)}
.field{margin-bottom:16px}
label{display:block;font-size:12px;font-weight:950;margin-bottom:7px;color:#314860}
input{width:100%;min-height:46px;border:1px solid #cbd6e0;border-radius:8px;padding:12px 13px;font-size:15px;color:var(--ink);background:#fff}
input:focus{outline:0;border-color:#78a9e6;box-shadow:0 0 0 3px rgba(31,111,235,.12)}
.actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px}
button{border:0;border-radius:8px;min-height:42px;padding:11px 15px;font-weight:950;cursor:pointer;background:var(--gold);color:#182000}
button.secondary{background:#e8eef5;color:#132b45}
button:disabled{opacity:.68;cursor:wait}
.alert{display:none;margin-top:14px;border-radius:8px;padding:12px 13px;font-size:14px;font-weight:850;line-height:1.35}
.alert.show{display:block}
.alert.err{background:#fff0ef;border:1px solid #f0b8b3;color:var(--red)}
.alert.ok{background:#edf9f4;border:1px solid #b8e8d6;color:#0c6f50}
.foot{margin-top:16px;color:var(--muted);font-size:12px}
@media(max-width:860px){
  .login-shell{grid-template-columns:1fr}
  .identity{min-height:auto;padding:24px 20px;gap:28px}
  .brand{font-size:34px}
  .content{padding:28px 18px;align-items:flex-start}
  h1{font-size:32px}
  form{padding:20px}
}