body {
  font-family: 'Inter', sans-serif;
}
.auth-bg {
  position: relative;
  overflow: hidden;
}
.auth-bg::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 20% 20%, rgba(168, 85, 247, 0.15) 0%, transparent 25%),
    radial-gradient(circle at 80% 30%, rgba(107, 33, 168, 0.2) 0%, transparent 30%),
    radial-gradient(circle at 50% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 25%);
  transform: translate(-50%, -50%);
  animation: rotate-gradient 30s linear infinite;
  z-index: 0;
}
@keyframes rotate-gradient {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}