:root{
  --bg1:#0f172a;
  --bg2:#1e293b;
  --accent:#22d3ee;
  --accent2:#38bdf8;
  --card:#0b1220;
  --text:#e5e7eb;
  --muted:#94a3b8;
  --danger:#fca5a5;
}
*{box-sizing:border-box;}
body{
  margin:0;
  min-height:100vh;
  font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(56,189,248,.20), transparent 35%),
    radial-gradient(circle at bottom right, rgba(34,211,238,.18), transparent 35%),
    linear-gradient(135deg, var(--bg1), var(--bg2));
}
.login-shell{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
}
.login-card{
  width:min(460px, 100%);
  background:rgba(11,18,32,.9);
  border:1px solid rgba(255,255,255,.08);
  border-radius:22px;
  padding:28px;
  box-shadow:0 24px 48px rgba(0,0,0,.35);
  backdrop-filter:saturate(140%) blur(6px);
}
.brand{
  display:flex;
  gap:18px;
  align-items:center;
  margin-bottom:24px;
}
.brand img{
  height:72px;
  filter:drop-shadow(0 8px 18px rgba(0,0,0,.4));
}
.eyebrow{
  font-size:.8rem;
  color:var(--accent);
  text-transform:uppercase;
  letter-spacing:.12em;
  font-weight:700;
}
.brand h1{
  margin:4px 0 6px;
  font-size:1.8rem;
}
.brand p{
  margin:0;
  color:var(--muted);
}
.alert{
  margin-bottom:18px;
  padding:12px 14px;
  border-radius:12px;
  background:rgba(127,29,29,.35);
  border:1px solid rgba(252,165,165,.35);
  color:#fee2e2;
  font-size:.95rem;
}
.login-form{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.login-form label{
  font-weight:600;
  color:#cbd5e1;
  font-size:.92rem;
}
.login-form input{
  width:100%;
  padding:12px 14px;
  border-radius:12px;
  border:1px solid rgba(148,163,184,.28);
  background:rgba(15,23,42,.72);
  color:var(--text);
  font-size:1rem;
}
.login-form input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(34,211,238,.18);
}
.login-form button{
  margin-top:10px;
  border:none;
  border-radius:14px;
  padding:13px 16px;
  font-weight:700;
  font-size:1rem;
  color:#082f49;
  cursor:pointer;
  background:linear-gradient(90deg, var(--accent), var(--accent2));
}
.login-form button:hover{
  filter:brightness(1.04);
}
.footer-note{
  margin-top:18px;
  color:var(--muted);
  font-size:.86rem;
}
@media (max-width: 520px){
  .login-card{padding:22px;}
  .brand{align-items:flex-start;}
  .brand img{height:56px;}
}