:root {
    --primary: #2E4053;
    --secondary: #964B00;
    --accent: #FFA500;
    --light: #FFF8DC;
    --dark: #1E3799;
    --text: #333333;
    --bg-gradient: linear-gradient(135deg, #964B00, #FFF8DC, #2E4053);
  }

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

  body {
    font-family: 'Open Sans', 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg-gradient);
    background-attachment: fixed;
    padding: 0;
    margin: 0;
    overflow-x: hidden;
  }

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

  .header {
    text-align: center;
    padding: 40px 0;
    position: relative;
    overflow: hidden;
  }

  .header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    z-index: -1;
    border-radius: 0 0 50% 50%/0 0 30% 30%;
    transform: scaleX(1.5);
  }

  .header h1 {
    font-size: 2.5rem;
    color: var(--light);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
  }

  .header h1::after {
    content: "";
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--accent);
  }

  .notice {
    background: rgba(255, 255, 255, 0.9);
    padding: 15px;
    border-radius: 8px;
    margin: 20px auto;
    max-width: 800px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-left: 4px solid var(--accent);
  }

  .navbar {
    position: sticky;
    top: 0;
    background: var(--primary);
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
  }

  .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }

  .nav-links {
    display: flex;
    gap: 20px;
  }

  .nav-links a {
    color: var(--light);
    text-decoration: none;
    font-weight: bold;
    padding: 5px 10px;
    border-radius: 4px;
    transition: all 0.3s ease;
    position: relative;
  }

  .nav-links a::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
  }

  .nav-links a:hover {
    color: var(--accent);
  }

  .nav-links a:hover::after {
    width: 100%;
  }

  .content-grid {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 30px;
    margin-top: 30px;
  }

  .sidebar {
    position: sticky;
    top: 80px;
    height: fit-content;
    background: rgba(255, 248, 220, 0.9);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  }

  .sidebar h3 {
    color: var(--secondary);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--secondary);
  }

  .sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .sidebar-nav a {
    color: var(--primary);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
  }

  .sidebar-nav a:hover {
    background: rgba(46, 64, 83, 0.1);
    color: var(--accent);
  }

  article {
    background: rgba(255, 248, 220, 0.9);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
  }

  article h2 {
    color: var(--secondary);
    margin-bottom: 20px;
    font-size: 1.8rem;
    position: relative;
    padding-bottom: 10px;
  }

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

  article h3 {
    color: var(--primary);
    margin: 25px 0 15px;
    font-size: 1.4rem;
  }

  article p {
    margin-bottom: 15px;
    font-size: 1.05rem;
    line-height: 1.7;
  }

  pre {
    background: rgba(46, 64, 83, 0.9);
    border-radius: 8px;
    padding: 15px;
    margin: 20px 0;
    overflow: auto;
    color: #f8f8f2;
    font-family: 'Courier New', monospace;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
    border-left: 4px solid var(--accent);
  }

  code {
    font-family: 'Courier New', monospace;
    background: rgba(46, 64, 83, 0.1);
    padding: 2px 5px;
    border-radius: 3px;
    color: var(--primary);
  }

  .image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
  }

  .gallery-item {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
  }

  .gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  }

  .gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
  }

  .button {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    margin: 10px 0;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }

  .button:hover {
    background: var(--dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
  }

  .footer {
    background: var(--primary);
    color: var(--light);
    padding: 30px 0;
    text-align: center;
    margin-top: 50px;
  }

  @media (max-width: 992px) {
    .content-grid {
      grid-template-columns: 1fr;
    }
    
    .sidebar {
      position: static;
      margin-bottom: 30px;
    }
  }

  @media (max-width: 768px) {
    .nav-container {
      flex-direction: column;
      gap: 15px;
    }
    
    .nav-links {
      flex-wrap: wrap;
      justify-content: center;
    }
    
    .header h1 {
      font-size: 2rem;
    }
    
    article {
      padding: 20px;
    }
  }

  @media (max-width: 576px) {
    .image-gallery {
      grid-template-columns: 1fr;
    }
  }

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

  .fade-in {
    animation: fadeIn 0.8s ease forwards;
  }

  .delay-1 { animation-delay: 0.2s; }
  .delay-2 { animation-delay: 0.4s; }
  .delay-3 { animation-delay: 0.6s; }