/* Pulse animation on the active item */
@keyframes glePulse {
  0%, 100% {
    box-shadow:
      0 0 4px rgba(0, 220, 190, 0.5),
      0 0 10px rgba(0, 220, 190, 0.3),
      0 0 20px rgba(0, 220, 190, 0.15);
  }
  50% {
    box-shadow:
      0 0 6px rgba(0, 220, 190, 0.9),
      0 0 15px rgba(0, 220, 190, 0.5),
      0 0 30px rgba(0, 220, 190, 0.25);
  }
}