body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9f9fb;
    color: #333;
    line-height: 1.7;
    margin: 0;
    padding-top: 80px; /* Adjust this value to match your navbar height */
   
  }

  article {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: #ffffff;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
    border-radius: 12px;
  }

  h1, h2 {
    color: #2c3e50;
    font-weight: 700;
  }

  h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    border-bottom: 3px solid #4aa3df;
    padding-bottom: 0.5rem;
  }

  h2 {
    font-size: 1.4rem;
    margin-top: 2rem;
    border-left: 5px solid #4aa3df;
    padding-left: 0.5rem;
  }

  ul {
    padding-left: 1.5rem;
  }

  li {
    margin-bottom: 0.5rem;
  }

  p {
    margin-bottom: 1rem;
  }

  a {
    color: #3182ce;
    text-decoration: none;
  }

  a:hover {
    text-decoration: underline;
  }

  iframe {
   
    aspect-ratio: 16 / 9;
    border-radius: 8px;
    margin: 1rem 0;
  }

  .video-title {
    font-weight: bold;
    font-size: 1.1rem;
    margin-top: 0.5rem;
  }

  footer {
    margin-top: 3rem;
    font-size: 0.9rem;
    color: #666;
    text-align: center;
    border-top: 1px solid #eee;
    padding-top: 1rem;
  }

  @media (max-width: 600px) {
    article {
      padding: 1rem;
    }

    h1 {
      font-size: 1.6rem;
    }

    h2 {
      font-size: 1.2rem;
    }
  }
/* Navbar Base */
#mainNav {
    background-color: #212529; /* Solid black */
    transition: all 0.3s ease-in-out;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    z-index: 1030; /* Ensures it stays above other content */
  }
  
  /* Navbar Brand/Links */
  #mainNav .navbar-nav .nav-link {
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.2s ease-in-out;
  }
  
  #mainNav .navbar-nav .nav-link:hover,
  #mainNav .navbar-nav .nav-link:focus {
    color: #4aa3df; /* Light blue on hover */
  }
  
  /* Navbar Toggler Button (Mobile Menu) */
  .navbar-toggler {
    border: none;
    background-color: #222;
    color: #fff;
    font-weight: bold;
  }
  
  /* Fix for navbar staying visible (sticky effect) */
  .navbar.fixed-top {
    position: fixed;
    top: 0;
    width: 100%;
  }
  
  /* YouTube icon alignment */
  .navbar-nav .nav-item img {
    vertical-align: middle;
    height: 28px;
    margin-top: -3px;
  }
  
  .card-container {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 1fr;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
  }
  
  .card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
  }
  
  .card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  @media (min-width: 768px) {
    .card-container {
      grid-template-columns: repeat(3, 1fr);
    }
  }
  .video-section {
    max-width: 800px;
    margin: 3rem auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    text-align: center;
  }
  
  .video-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #333;
  }
  
  .video-card {
    margin-top: 1.5rem;
  }
  
  .video-card img {
    width: 100%;
    max-width: 100%;
    border-radius: 8px;
    transition: transform 0.3s;
  }
  
  .video-card img:hover {
    transform: scale(1.02);
  }
  
  .video-title {
    margin-top: 1rem;
    font-size: 1.2rem;
    color: black;
  }
  
  @media (max-width: 600px) {
    .video-section {
      margin: 1rem;
      padding: 1rem;
    }
  }
  
  .title-video {
    color: black;
    font-size: 500%;
    text-align: center;
    margin: 3rem auto;
  }