:root {
    --primary: #F5DEB3;
    --secondary: #FFA500;
    --accent: #228B22;
    --highlight: #0074D9;
    --text: #333333;
    --light: #FFFFFF;
    --shadow: rgba(0, 0, 0, 0.1);
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: linear-gradient(135deg, var(--primary) 0%, #F8F8F8 100%);
    padding: 0;
    margin: 0;
    min-height: 100%;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
  }

  .header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
  }

  .header::after {
    content: "";
    display: block;
    width: 150px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    margin: 20px auto;
    border-radius: 2px;
  }

  h1, h2, h3, h4 {
    font-family: 'Times New Roman', serif;
    color: var(--accent);
    margin-bottom: 20px;
  }

  h2 {
    font-size: 32px;
    position: relative;
    padding-bottom: 15px;
  }

  h2::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--secondary);
  }

  h3 {
    font-size: 24px;
    margin-top: 40px;
    border-left: 5px solid var(--highlight);
    padding-left: 15px;
  }

  p {
    margin-bottom: 20px;
    font-size: 17px;
  }

  .article-container {
    background: var(--light);
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow);
    padding: 50px;
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
  }

  .article-container::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--highlight) 0%, transparent 70%);
    opacity: 0.1;
    z-index: 0;
  }

  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
  }

  .image-card {
    background: var(--light);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .image-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
  }

  .image-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
    border-bottom: 1px solid #eee;
  }

  .image-caption {
    padding: 15px;
    text-align: center;
    font-style: italic;
    color: var(--text);
  }

  pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 30px 0;
    font-size: 15px;
    line-height: 1.5;
    position: relative;
  }

  pre::before {
    content: "CSS";
    position: absolute;
    top: 0;
    left: 0;
    background: var(--highlight);
    color: white;
    padding: 2px 10px;
    border-radius: 0 0 5px 0;
    font-size: 12px;
    font-weight: bold;
  }

  code {
    font-family: 'Courier New', monospace;
  }

  .note {
    background: rgba(255, 165, 0, 0.1);
    border-left: 4px solid var(--secondary);
    padding: 20px;
    margin: 30px 0;
    border-radius: 0 5px 5px 0;
  }

  .note-title {
    font-weight: bold;
    color: var(--secondary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
  }

  .note-title::before {
    content: "ℹ️";
    margin-right: 10px;
  }

  .color-swatch {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    margin-right: 5px;
    vertical-align: middle;
    border: 1px solid #ddd;
  }

  .footer {
    text-align: center;
    padding: 30px;
    color: var(--text);
    font-size: 14px;
    opacity: 0.8;
  }

  @media (max-width: 768px) {
    .article-container {
      padding: 30px 20px;
    }
    
    h2 {
      font-size: 28px;
    }
    
    h3 {
      font-size: 22px;
    }
    
    .image-grid {
      grid-template-columns: 1fr;
    }
  }

  @media (max-width: 480px) {
    .container {
      padding: 20px 10px;
    }
    
    .article-container {
      padding: 20px 15px;
    }
    
    h2 {
      font-size: 24px;
    }
  }

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

  .article-container {
    animation: fadeIn 0.6s ease-out forwards;
  }

  .image-card {
    animation: fadeIn 0.6s ease-out forwards;
    animation-delay: 0.3s;
    opacity: 0;
  }

  /* Navigation */
  .nav-links {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    z-index: 100;
  }

  .nav-link {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    margin: 10px 0;
    opacity: 0.5;
    transition: all 0.3s ease;
    cursor: pointer;
  }

  .nav-link:hover, .nav-link.active {
    opacity: 1;
    transform: scale(1.3);
    background: var(--highlight);
  }

  /* Retro elements */
  .retro-border {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    border: 8px solid transparent;
    border-image: linear-gradient(45deg, var(--secondary), var(--highlight)) 1;
    pointer-events: none;
    z-index: -1;
  }

  .corner-decoration {
    position: absolute;
    width: 50px;
    height: 50px;
    border: 3px solid var(--secondary);
    opacity: 0.3;
  }

  .corner-decoration.top-left {
    top: 20px;
    left: 20px;
    border-right: none;
    border-bottom: none;
  }

  .corner-decoration.top-right {
    top: 20px;
    right: 20px;
    border-left: none;
    border-bottom: none;
  }

  .corner-decoration.bottom-left {
    bottom: 20px;
    left: 20px;
    border-right: none;
    border-top: none;
  }

  .corner-decoration.bottom-right {
    bottom: 20px;
    right: 20px;
    border-left: none;
    border-top: none;
  }