:root {
    --primary: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    --secondary: rgba(37, 117, 252, 0.1);
    --accent: #00ffcc;
    --text: #ffffff;
    --card-bg: rgba(255, 255, 255, 0.9);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  }

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

  body {
    font-family: 'Roboto', sans-serif;
    color: var(--text);
    background: var(--primary);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    line-height: 1.6;
    overflow-x: hidden;
  }

  @keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

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

  .header {
    position: relative;
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
  }

  .header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--secondary);
    animation: stormEffect 20s infinite linear;
    z-index: 0;
  }

  @keyframes stormEffect {
    0% { transform: translateX(-100%) skewX(-20deg); }
    100% { transform: translateX(100%) skewX(-20deg); }
  }

  .header-content {
    position: relative;
    z-index: 1;
    padding: 40px;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    max-width: 800px;
  }

  h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #ffffff, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  }

  h2 {
    font-size: 2.2rem;
    margin: 40px 0 20px;
    color: var(--accent);
    position: relative;
    display: inline-block;
  }

  h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
  }

  h2:hover::after {
    transform: scaleX(1);
  }

  h3 {
    font-size: 1.8rem;
    margin: 30px 0 15px;
    color: var(--text);
  }

  p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.8;
  }

  .content-section {
    padding: 80px 0;
    position: relative;
  }

  .content-section:nth-child(even) {
    background: rgba(0, 0, 0, 0.1);
  }

  .article-container {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    margin: 40px 0;
    box-shadow: var(--shadow);
  }

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

  .image-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 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, 0.3);
  }

  .image-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
  }

  .image-card .caption {
    padding: 20px;
    color: #333;
  }

  pre {
    background: rgba(0, 0, 0, 0.5);
    border-radius: 10px;
    padding: 20px;
    margin: 30px 0;
    overflow: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    position: relative;
  }

  pre::before {
    content: 'CSS';
    position: absolute;
    top: 0;
    left: 0;
    background: var(--accent);
    color: #000;
    padding: 5px 10px;
    border-radius: 0 0 10px 0;
    font-size: 0.8rem;
    font-weight: bold;
  }

  code {
    font-family: 'Courier New', monospace;
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 5px;
    border-radius: 3px;
    font-size: 0.9rem;
  }

  .note {
    background: rgba(0, 255, 204, 0.1);
    border-left: 4px solid var(--accent);
    padding: 20px;
    margin: 30px 0;
    border-radius: 0 10px 10px 0;
  }

  .footer {
    text-align: center;
    padding: 40px 0;
    background: rgba(0, 0, 0, 0.3);
    margin-top: 80px;
  }

  .reference {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 20px;
  }

  @media (max-width: 768px) {
    h1 {
      font-size: 2.5rem;
    }
    
    h2 {
      font-size: 1.8rem;
    }
    
    h3 {
      font-size: 1.5rem;
    }
    
    .header {
      height: 60vh;
    }
    
    .header-content {
      padding: 20px;
    }
    
    .article-container {
      padding: 20px;
    }
    
    .image-grid {
      grid-template-columns: 1fr;
    }
  }