:root{
  --bg1: #0ea5ea;
  --bg2: #3b82f6;
  --dark: #0f172a;
  --dark-2: #0b1224;
  --glass: rgba(255,255,255,.08);
  --glass-border: rgba(255,255,255,.15);
  --brand: #ffffff;
  --light-50: rgba(255,255,255,.7);
  --primary: #2563eb;
}

html, body {
  height: 100%;
}

.auth-bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(1200px 800px at -10% -10%, var(--bg1), transparent 70%),
              radial-gradient(1000px 600px at 110% 10%, var(--bg2), transparent 60%),
              linear-gradient(135deg, #0b1224, #0b1224);
  overflow: hidden;
}

.shape {
  position: absolute;
  filter: blur(40px);
  opacity: .35;
  border-radius: 50%;
}
.shape-1 { width: 320px; height: 320px; left: 8%; top: 12%; background: #22d3ee; }
.shape-2 { width: 420px; height: 420px; right: 10%; top: 20%; background: #60a5fa; }
.shape-3 { width: 260px; height: 260px; left: 18%; bottom: 10%; background: #a78bfa; }
.shape-4 { width: 380px; height: 380px; right: 15%; bottom: 8%; background: #f472b6; }

.login-card {
  width: min(960px, 95%);
  border-radius: 1.25rem;
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  overflow: hidden;
  position: relative;
}

.hero-side {
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border-right: 1px solid var(--glass-border);
  color: var(--brand);
  min-height: 520px;
}

.brand {
  font-weight: 800;
  letter-spacing: .3px;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  font-size: 1.15rem;
}

.text-light-50 { color: var(--light-50) !important; }

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
}

.form-control, .form-select, .input-group .form-control, .input-group .btn {
  border-radius: .75rem;
}

@media (max-width: 991.98px) {
  .hero-side {
    display: none;
  }
}