* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    background-color: #1a1a1a;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
  }
  
  header {
    text-align: center;
    padding: 20px;
    animation: fadeIn 1.5s ease-in-out;
  }
  
  header img {
    width: 100px;
    border-radius: 50%;
    margin-bottom: 10px;
  }
  
  header h1 {
    font-size: 2.5rem;
  }
  
  header p {
    font-size: 1.2rem;
    color: #aaaaaa;
  }
  
  nav {
    text-align: center;
    margin: 20px 0;
  }
  
  nav a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 15px;
    font-size: 1.2rem;
    transition: color 0.3s;
  }
  
  nav a:hover {
    color: #777777;
  }
  
  .content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    animation: slideIn 1.5s ease-in-out;
  }
  
  .content h2 {
    text-align: center;
    margin-bottom: 20px;
  }
  
  .video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
  }
  
  .video-grid iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: none;
  }

  .rounded-video {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  }  
  
  footer {
    text-align: center;
    padding: 20px;
    background-color: #111111;
    color: #777777;
    font-size: 0.9rem;
  }

::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: #1e1e1e;
  border-radius: 6px;
}

::-webkit-scrollbar-thumb {
  background: #555;
  border-radius: 6px;
  border: 2px solid #1e1e1e;
}

::-webkit-scrollbar-thumb:hover {
  background: #777777;
}

  
  @media (min-width: 1200px) {
    .video-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
  
  @keyframes slideIn {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }