html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at 70% 15%, rgba(0,214,255,.16), transparent 32%),
    radial-gradient(circle at 20% 80%, rgba(218,176,83,.12), transparent 30%),
    #02070d;
  color: #e7fbff;
  font-family: Inter, system-ui, -apple-system, Segoe UI, sans-serif;
}
.gateway-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px;
}
.gateway-card {
  width: min(720px, 94vw);
  border: 1px solid rgba(0,214,255,.3);
  border-radius: 28px;
  padding: 32px;
  background: linear-gradient(145deg, rgba(5,16,26,.96), rgba(8,33,42,.92));
  box-shadow: 0 0 60px rgba(0,214,255,.12), inset 0 0 30px rgba(218,176,83,.05);
}
.sigil {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(218,176,83,.7);
  color: #ffe3a0;
  font-weight: 800;
  margin-bottom: 18px;
}
.eyebrow {
  letter-spacing: .18em;
  color: #86dff0;
  font-size: 12px;
}
h1 {
  font-size: clamp(44px, 8vw, 82px);
  margin: 0 0 10px;
}
.lead {
  color: #a8cbd5;
  font-size: 18px;
}
.role-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(138px, 1fr));
  gap: 10px;
  margin: 26px 0;
}
button {
  background: rgba(0,214,255,.09);
  border: 1px solid rgba(0,214,255,.33);
  color: #e7fbff;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 700;
  cursor: pointer;
}
button.active, button:hover {
  border-color: rgba(218,176,83,.8);
  color: #ffe3a0;
}
.login-panel {
  display: grid;
  gap: 10px;
}
label {
  color: #86dff0;
  font-size: 13px;
}
input {
  border-radius: 14px;
  border: 1px solid rgba(0,214,255,.28);
  background: rgba(0,0,0,.28);
  color: #fff;
  padding: 13px 14px;
}
pre {
  margin-top: 18px;
  white-space: pre-wrap;
  border: 1px solid rgba(0,214,255,.18);
  background: rgba(0,0,0,.25);
  border-radius: 14px;
  padding: 14px;
  color: #bdeef8;
}