/* General Styles */
body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #1e1e2f;
    color: #e0e0e0;
    text-align: left;
  }
  
  /* Header */
  header {
    background: #3c3c6e;
    padding: 20px;
    font-size: 1.8em;
    text-align: center;
    transition: background 0.5s ease;
  }
  
  header:hover {
    background: #3a4d7a;
  }
  
  /* Main Content */
  main {
    margin: 40px auto;
    width: 80%;
    max-width: 800px;
    background: #3c3c6e;
    padding: 20px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
    border-radius: 10px;
  }
  
  /* Fade-in animation for sections */
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  main section {
    animation: fadeIn 1s ease-out;
    margin-bottom: 20px;
  }
  
  /* Paragraphs */
  p {
    font-size: 1.1em;
    line-height: 1.5;
  }
  
  /* Buttons */
  .btn {
    display: inline-block;
    background: #00aaff;
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
    font-weight: bold;
    text-align: center;
    transition: background 0.3s ease, transform 0.3s ease;
  }
  
  .btn:hover {
    background: #0099dd;
    transform: scale(1.05);
  }
  
  /* Images */
  .image {
    width: 100%;
    max-width: 100%;
    margin-top: 20px;
    border-radius: 8px;
    box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.5);
  }
  
  /* Code Blocks */
  pre {
    background: #111;
    color: #0f0;
    padding: 15px;
    text-align: left;
    border-radius: 5px;
    overflow-x: auto;
  }
  
  /* Video */
  iframe {
    margin-top: 20px;
    width: 80%;
    max-width: 560px;
    height: 315px;
    border-radius: 8px;
  }