* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Segoe UI', sans-serif;
    background: #121212;
    color: #f0f0f0;
    line-height: 1.6;
    padding: 20px;
  }
  
  header {
    text-align: center;
    padding: 2rem 0;
  }
  
  header h1 {
    font-size: 2.5rem;
    color: #00ffd1;
  }
  
  header p {
    font-size: 1.2rem;
    color: #ccc;
  }
  
  nav {
    margin-top: 1rem;
  }
  
  nav a {
    margin: 0 1rem;
    text-decoration: none;
    color: #00ffd1;
    font-weight: bold;
    transition: color 0.3s ease;
  }
  
  nav a:hover {
    color: #ffffff;
  }
  section {
    padding: 2rem 0;
  }
  
  h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #ffcc00;
  }
  
  .video-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
  }
  
  .video {
    width: 100%;
    max-width: 480px;
    text-align: center;
  }
  
  .video video {
    width: 100%;
    border: 2px solid #333;
    border-radius: 8px;
  }
  footer {
    text-align: center;
    margin-top: 2rem;
    padding: 1rem;
    border-top: 1px solid #333;
    font-size: 0.9rem;
    color: #888;
  }
  @media (max-width: 768px) {
    .video-gallery {
      flex-direction: column;
      align-items: center;
    }
  }