:root{
  color-scheme:dark;
  --bg:#090d14;--card:#101722;--line:#233044;--text:#f5f7fb;--muted:#8f9bad;
  --accent:#7c6cff;--danger:#ff6b7a;--good:#35d39a
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:system-ui,-apple-system,"Segoe UI",Tahoma,Arial,sans-serif;background:
radial-gradient(circle at 50% 0,rgba(124,108,255,.18),transparent 38%),var(--bg);color:var(--text)}
body{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-shell{width:min(440px,100%)}
.login-card{background:rgba(16,23,34,.96);border:1px solid var(--line);border-radius:26px;padding:28px;box-shadow:0 24px 80px rgba(0,0,0,.34)}
.brand-mark{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;background:linear-gradient(135deg,#7c6cff,#5a9dff);font-weight:900;font-size:21px;margin-bottom:20px}
.eyebrow{display:block;color:#9d94ff;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-bottom:7px}
h1{font-size:28px;margin:0 0 8px}
p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
form{display:grid;gap:15px;margin-top:24px}
label{display:grid;gap:7px}
label span{font-size:12px;font-weight:700;color:#cbd3df}
input{width:100%;border:1px solid var(--line);background:#0b111a;color:var(--text);border-radius:14px;padding:13px 14px;font:inherit;outline:none}
input:focus{border-color:#6f64eb;box-shadow:0 0 0 3px rgba(124,108,255,.16)}
button{border:0;border-radius:14px;padding:13px 16px;font:inherit;font-weight:800;background:linear-gradient(135deg,#7c6cff,#5a78ff);color:white;cursor:pointer}
button:disabled{opacity:.55;cursor:wait}
.login-message{min-height:20px;text-align:center;color:var(--danger);font-size:12px;font-weight:700}
.login-message.good{color:var(--good)}
.security-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;align-items:center;color:var(--muted);font-size:11px}
.security-note strong{color:#dbe2ec;white-space:nowrap}
@media(max-width:480px){body{padding:14px}.login-card{padding:22px;border-radius:22px}.security-note{align-items:flex-start;flex-direction:column}}