*{box-sizing:border-box;margin:0;padding:0}
body{
  min-height:100vh;
  background:#050b14;
  color:#e2e8f0;
  font-family:'IBM Plex Mono',monospace;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px 16px;
  position:relative;
  overflow-x:hidden;
}
.bg-grid{
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%,rgba(0,212,255,.18),transparent),
    linear-gradient(rgba(0,212,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,212,255,.04) 1px,transparent 1px);
  background-size:auto,48px 48px,48px 48px;
}
.shell{position:relative;z-index:1;width:100%;max-width:420px}
.brand{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.logo{
  width:48px;height:48px;border-radius:12px;
  background:linear-gradient(135deg,#00d4ff,#0066ff,#a78bfa);
  display:flex;align-items:center;justify-content:center;font-size:22px;
  box-shadow:0 0 24px rgba(0,212,255,.35);
}
.brand h1{
  font-size:22px;font-weight:700;
  background:linear-gradient(90deg,#00d4ff,#7dd3fc,#a78bfa);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.brand p{font-size:10px;color:#64748b;letter-spacing:.06em;margin-top:2px}
.card{
  background:rgba(255,255,255,.03);
  border:1px solid rgba(0,212,255,.2);
  border-radius:16px;padding:22px 20px;
  box-shadow:0 12px 40px rgba(0,0,0,.45);
  animation:fadeUp .45s ease;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.card h2{font-size:14px;color:#00d4ff;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.hint{font-size:11px;color:#64748b;line-height:1.6;margin-bottom:18px}
label{display:block;font-size:10px;color:#94a3b8;letter-spacing:.08em;text-transform:uppercase;margin:0 0 6px}
input{
  width:100%;padding:12px 14px;margin-bottom:14px;
  background:rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.1);
  border-radius:10px;color:#e2e8f0;font-family:inherit;font-size:13px;
  outline:none;transition:border .2s,box-shadow .2s;
}
input:focus{border-color:rgba(0,212,255,.55);box-shadow:0 0 0 3px rgba(0,212,255,.12)}
button#btn-login{
  width:100%;margin-top:6px;padding:13px 16px;border:none;border-radius:10px;
  background:linear-gradient(135deg,#00d4ff,#0066ff);color:#04101f;
  font-family:inherit;font-weight:700;font-size:13px;letter-spacing:.06em;
  cursor:pointer;transition:transform .15s,opacity .15s,box-shadow .2s;
}
button#btn-login:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(0,212,255,.3)}
button#btn-login:disabled{opacity:.55;cursor:wait;transform:none;box-shadow:none}
.msg{margin-top:14px;font-size:11px;line-height:1.5;padding:10px 12px;border-radius:8px}
.msg.err{background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.35);color:#fca5a5}
.msg.ok{background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.35);color:#6ee7b7}
.links{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:16px;font-size:11px;color:#475569}
.linkish{
  background:none;border:none;color:#00d4ff;cursor:pointer;font-family:inherit;font-size:11px;
  text-decoration:underline;text-underline-offset:3px;
}
a.linkish{color:#00d4ff}
.back{
  background:none;border:none;color:#94a3b8;cursor:pointer;font-family:inherit;font-size:11px;margin-bottom:12px;
}
.info-body{
  font-size:12px;color:#cbd5e1;line-height:1.7;white-space:pre-wrap;max-height:55vh;overflow:auto;
}
.foot{
  margin-top:18px;display:flex;justify-content:space-between;gap:12px;
  font-size:9px;color:#475569;letter-spacing:.04em;
}