body {
    font-family: 'Segoe UI', sans-serif;
    background-color: #0f0f0f;
    color: #ffffff;
    margin: 0;
    padding: 0;
    text-align: center;
  }
  
  header {
    background: #121212;
    padding: 30px 0;
    box-shadow: 0 0 10px green;
  }
  
  .intro {
    padding: 40px 20px;
    background-color: #1a1a1a;
  }
  
  .intro button {
    padding: 10px 20px;
    background-color: limegreen;
    color: black;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  .animation {
    margin-top: 40px;
  }
  
  #cube {
    width: 100px;
    height: 100px;
    background: linear-gradient(45deg, lime, green);
    margin: 20px auto;
    animation: rotate 5s linear infinite;
  }
  
  @keyframes rotate {
    from { transform: rotateY(0deg); }
    to { transform: rotateY(360deg); }
  }
  
  footer {
    padding: 20px;
    background-color: #111;
    font-size: 14px;
  }
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    color: #fff;
    text-align: center;
    overflow-x: hidden;
  }
  
  .hero {
    padding: 30px 10px;
  }
  
  header {
    padding: 40px 10px;
  }
  
  .glow {
    font-size: 3rem;
    color: #0ff;
    text-shadow: 0 0 10px #0ff, 0 0 20px #0ff, 0 0 30px #0ff;
    animation: glowPulse 2s infinite ease-in-out;
  }
  
  @keyframes glowPulse {
    0%, 100% { text-shadow: 0 0 10px #0ff, 0 0 20px #0ff; }
    50% { text-shadow: 0 0 20px #0ff, 0 0 40px #0ff; }
  }
  
  .intro {
    margin-top: 40px;
    background: rgba(0, 0, 0, 0.5);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 0 20px #00f7ff;
  }
  
  .intro button {
    margin-top: 20px;
    padding: 10px 25px;
    font-size: 16px;
    background: linear-gradient(45deg, #00f7ff, #00ff95);
    color: black;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 0 15px #00ffcc;
    transition: transform 0.2s;
  }
  .intro button:hover {
    transform: scale(1.05);
  }
  
  .animation {
    margin: 50px auto;
  }
  
  .ne