/* Glowing pulse effect for lightbulb */
    @keyframes glowPulse {
      0%, 100% {
        text-shadow: 0 0 5px rgba(251, 191, 36, 0.6), 0 0 10px rgba(251, 191, 36, 0.4);
        transform: scale(1);
      }
      50% {
        text-shadow: 0 0 20px rgba(251, 191, 36, 0.9), 0 0 30px rgba(251, 191, 36, 0.7);
        transform: scale(1.2);
      }
    }

    .glow {
      animation: glowPulse 1.5s ease-in-out;