:root {
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #00acee;
    --text: #e6e6e6;
    --highlight: #8e44ad;
    --success: #32CD32;
    --warning: #FFD700;
    --danger: #e74c3c;
  }

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

  body {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--text);
    font-family: 'Inter', 'Roboto', sans-serif;
    line-height: 1.6;
    min-height: 100%;
    padding: 0;
    overflow-x: hidden;
  }

  .header {
    position: relative;
    padding: 2rem 0;
    text-align: center;
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 3rem;
  }

  .header h1 {
    font-size: 2.5rem;
    background: linear-gradient(90deg, var(--accent), var(--highlight));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
  }

  .header p {
    color: rgba(230,230,230,0.8);
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
  }

  .notice {
    background: rgba(0,172,238,0.1);
    border-left: 4px solid var(--accent);
    padding: 1rem;
    margin: 2rem auto;
    max-width: 800px;
    border-radius: 0 4px 4px 0;
    font-size: 0.9rem;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
  }

  article {
    background: rgba(30,30,46,0.6);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 3rem;
    margin: 2rem 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.05);
  }

  article h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
    position: relative;
    padding-bottom: 0.5rem;
  }

  article h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--highlight));
    border-radius: 3px;
  }

  article h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: var(--warning);
  }

  article p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
  }

  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
  }

  .image-card {
    background: rgba(44, 62, 80, 0.3);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  }

  .image-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
  }

  .image-card img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px 8px 0 0;
  }

  .image-caption {
    padding: 1rem;
    font-size: 0.9rem;
    color: rgba(230,230,230,0.7);
  }

  pre {
    background: rgba(44, 62, 80, 0.5);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
    overflow: auto;
    border-left: 4px solid var(--accent);
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
  }

  code {
    color: var(--warning);
    background: rgba(255,215,0,0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
  }

  pre code {
    background: transparent;
    padding: 0;
    color: var(--text);
  }

  .nav-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0;
  }

  .nav-link {
    background: rgba(0,172,238,0.1);
    color: var(--accent);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(0,172,238,0.3);
    font-weight: 500;
  }

  .nav-link:hover {
    background: rgba(0,172,238,0.3);
    transform: translateY(-2px);
  }

  .summary {
    background: rgba(142, 68, 173, 0.1);
    border-left: 4px solid var(--highlight);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 8px 8px 0;
  }

  .summary h3 {
    color: var(--highlight);
    margin-top: 0;
  }

  @media (max-width: 768px) {
    .container {
      padding: 0 1rem;
    }
    
    article {
      padding: 2rem 1.5rem;
    }
    
    .header h1 {
      font-size: 2rem;
    }
    
    .image-grid {
      grid-template-columns: 1fr;
    }
  }

  @keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
  }

  .floating {
    animation: float 3s ease-in-out infinite;
  }