* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: "Baloo Bhai 2", cursive;
      background: linear-gradient(135deg, #141E30, #243B55);
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
    }

    section {
      width: 100%;
      max-width: 600px;
      text-align: center;
    }

    #bulb {
      width: 200px;
      transition: 0.3s ease-in-out;
      filter: drop-shadow(0 0 10px rgba(0,0,0,0.3));
    }

    #bulb.on {
      filter: drop-shadow(0 0 20px yellow) brightness(1.2);
      animation: glow 1s infinite alternate;
    }

    @keyframes glow {
      from { filter: drop-shadow(0 0 15px yellow) brightness(1.1); }
      to { filter: drop-shadow(0 0 30px yellow) brightness(1.3); }
    }

    .btn_container {
      margin-top: 30px;
      display: flex;
      justify-content: center;
      gap: 20px;
    }

    .bulb_btn {
      font-family: "Baloo Bhai 2", cursive;
      width: 120px;
      height: 50px;
      border: none;
      outline: none;
      cursor: pointer;
      font-size: 20px;
      border-radius: 10px;
      transition: 0.3s;
      color: #fff;
      background: #34dab4;
      box-shadow: 0 5px #2bb297;
    }

    .bulb_btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px #2bb297;
      background: #28c9a1;
    }

    .bulb_btn:active {
      transform: translateY(2px);
      box-shadow: 0 3px #2bb297;
    }