body {
    font-family: 'Roboto', sans-serif;
    background-color: #08151c;
    color: #00C062;
    margin: 0;
    padding: 0;
  }
  
  .container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
  }
  
  .main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 2px solid #F4CE14;
  }
  
  .logo {
    height: 50px;
  }
  
  .nav-link {
    color: #00C062;
    text-decoration: none;
    font-size: 1.2rem;
    position: relative;
    padding: 5px;
  }
  
  .nav-link::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: #00C062;
    transition: width 0.3s;
    position: absolute;
    bottom: -5px;
    left: 0;
  }
  
  .nav-link:hover::after {
    width: 100%;
  }
  
  header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 2px solid #F4CE14;
  }
  
  header h1 {
    margin: 0;
    font-size: 2rem;
  }
  
  #search {
    padding: 10px;
    width: 300px;
    border: none;
    border-radius: 5px;
    background-color: #040D12;
    color: #f3f3f3;
    font-size: 1rem;
  }
  
  #search:focus {
    outline: none;
    border: 2px solid #00C062;
  }
  
  #categories {
    margin: 20px 0;
  }
  
  .category {
    background-color: #040D12;
    color: #f3f3f3;
    border: none;
    padding: 10px 20px;
    margin: 0 10px 10px 0;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 0 4px 8px #00C062;
  }
  
  .category.active {
    background-color: #00C062;
  }
  
  #video-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
  }
  
  .video-card {
    border-radius: 10px;
    overflow: hidden;
    background-color: #040D12;
    box-shadow: 0 4px 8px #00C062;
    transition: transform 0.3s ease-in-out;
    cursor: pointer;
  }
  
  .video-card:hover {
    transform: scale(1.05);
  }
  
  .video-card iframe {
    width: 100%;
    height: 200px;
  }
  
  .video-card .content {
    padding: 15px;
  }
  
  .video-card .content h3 {
    margin: 0 0 10px;
    font-size: 1.4em;
    color: #00C062;
  }
  
  .video-card .content p {
    margin: 0;
    color: #aaa;
  }
  
  .video-card .tags {
    margin-top: 10px;
  }
  
  .video-card .tags span {
    background-color: #040D12;
    color: #f3f3f3;
    border-radius: 3px;
    padding: 2px 5px;
    margin-right: 5px;
    font-size: 0.9rem;
    box-shadow: 0 4px 8px #00C062;
  }
  
  .modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 1000;
  }
  
  .modal-content {
    display: flex;
    width: 90%;
    height: 70%;
    background-color: #040D12;
    border-radius: 10px;
    overflow: hidden;
  }
  
  .modal-video {
    flex: 7;
    padding: 10px;
  }
  
  .modal-video iframe {
    width: 100%;
    height: 100%;
  }
  
  .modal-recommendations {
    flex: 3;
    padding: 20px;
    overflow-y: auto;
  }
  
  .modal-recommendations h2 {
    margin: 0 0 20px;
  }
  
  .modal-recommendations .recommendation-card {
    display: flex;
    margin-bottom: 15px;
    cursor: pointer;
  }
  
  .modal-recommendations .recommendation-card img {
    width: 100px;
    height: 60px;
    border-radius: 5px;
  }
  
  .modal-recommendations .recommendation-content {
    margin-left: 10px;
  }
  
  .modal-recommendations .recommendation-content h3 {
    margin: 0;
    font-size: 1rem;
    color: #00C062;
  }
  
  .modal-recommendations .recommendation-content p {
    margin: 5px 0 0;
    color: #aaa;
  }
  
  @media (max-width: 480px) {
    .video-card {
      width: 100%;
    }
  
    .modal-content {
      flex-direction: column;
    }
  
    .modal-video {
      height: 60%;
    }
  
    .modal-recommendations {
      height: 40%;
    }
  }