body {
    font-family: Arial, sans-serif;
    background-color: #eef2f7;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
  }

  .gate-container {
    background-color: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 0 10px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 30px;
    width: 500px;
  }

  .inputs {
    display: flex;
    flex-direction: column;
    gap: 15px;
  }

  .inputs label {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .image {
    width: 120px;
    height: 120px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
  }

  .output {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: gray;
    box-shadow: inset 0 0 5px #00000055;
    transition: background-color 0.3s ease;
  }

  .on {
    background-color: yellow;
    box-shadow: 0 0 15px yellow;
  }

  h2 {
    text-align: center;
  }