.card-glow {
  --tw-ring-color: rgba(30, 64, 175, 0.4);
  box-shadow: 0 0 8px rgba(30, 64, 175, 0.15);
  transition: box-shadow 0.3s ease, --tw-ring-color 0.3s ease;
}
.card-glow:hover {
  --tw-ring-color: rgba(59, 130, 246, 0.5);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.2), 0 0 40px rgba(30, 64, 175, 0.1);
}