/*============== FOR CHAPTERS UPTO(461) ================*/
  /* General Styles */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
  }
  
  /* Container for the entire page */
  .container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
  }
  
  /* Header section */
  header {
    text-align: center;
    margin-bottom: 40px;
  }
  
  header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
  }

  h3 {
    margin-bottom: 10px;
  }
  
  header p {
    font-size: 1.2rem;
    color: #555;
  }
  
  /* Search Bar */
  .search-bar {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
  }
  
  .search-bar input {
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    width: 60%;
    margin-right: 10px;
  }
  
  .search-bar button {
    padding: 10px 20px;
    font-size: 1rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  .search-bar button:hover {
    background-color: #0056b3;
  }
  
  /* Video section styles */
  .video-section {
  width: 100%;
    background-color: #f4f4f9;
    padding: 20px;
    border-radius: 18px;
    margin-bottom: 50px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  }
  
  .video-section iframe {
    width: 100%;
    height: 400px;
    border-radius: 8px;
    margin-bottom: 15px;
  }
  
  .video-section h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: #333;
  }
  
  .video-section p {
    font-size: 1.1rem;
    color: #666;
  }
  
  /* Pagination Buttons */
  .pagination {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
  }
  
  .pagination button {
    padding: 12px 25px;
    font-size: 1rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  .pagination button:hover {
    background-color: #0056b3;
  }
  
  /* Mobile responsiveness */
  @media (max-width: 768px) {
    .search-bar input {
        width: 80%;
    }
  
    .video-section iframe {
        height: 250px;
    }
  
    .pagination button {
        padding: 10px 20px;
    }
  }