:root {
  --nrru-green:      #4a148c;
  --nrru-green-mid:  #7b1fa2;
  --nrru-green-soft: #7b1fa2;
  --nrru-gold:       #ffab00;
}

.nrru-navbar {
  background: linear-gradient(135deg,
    rgba(74,20,140,0.75) 0%,
    rgba(123,31,162,calc(0.75 - 0.10)) 100%) !important;
}

.login-page {
  background:
    radial-gradient(ellipse at 20% 50%, rgba(123,31,162,0.6) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(45,0,75,0.7) 0%, transparent 55%),
    linear-gradient(135deg, #1a0033 0%, #2d004b 100%) !important;
}
.login-page::before {
  background: radial-gradient(circle, rgba(123,31,162,0.6), transparent) !important;
}
.login-page::after {
  background: radial-gradient(circle, rgba(45,0,75,0.7), transparent) !important;
}

.btn-nrru {
  background: linear-gradient(135deg,
    rgba(123,31,162,0.85) 0%,
    rgba(74,20,140,0.95) 100%) !important;
  border-color: rgba(123,31,162,0.40) !important;
}
.btn-nrru:hover, .btn-nrru:focus {
  background: linear-gradient(135deg,
    rgba(123,31,162,1) 0%,
    rgba(74,20,140,1) 100%) !important;
}
.login-logo i { color: #ffab00 !important; filter: drop-shadow(0 0 8px #ffab0099); }