:root {
    --primary: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    --secondary: rgba(255, 255, 255, 0.1);
    --accent: linear-gradient(45deg, #6a11cb, #2575fc);
    --text-light: #ffffff;
    --text-dim: rgba(255, 255, 255, 0.7);
    --card-bg: rgba(255, 255, 255, 0.2);
    --spacing-xl: 4rem;
    --spacing-lg: 2rem;
    --spacing-md: 1.5rem;
    --spacing-sm: 1rem;
    --border-radius: 12px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  }

  @font-face {
    font-family: 'Roboto';
    src: url('https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4mxK.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
  }

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

  body {
    background: var(--primary);
    color: var(--text-light);
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
  }

  .header {
    text-align: center;
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
  }

  .header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: aurora 15s ease infinite;
    z-index: -1;
    opacity: 0.7;
  }

  h1, h2, h3, h4 {
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
    font-weight: 700;
  }

  h1 {
    font-size: 2.5rem;
    background: linear-gradient(90deg, #fff, #aaa);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  }

  h2 {
    font-size: 1.8rem;
    color: var(--text-light);
    margin-top: var(--spacing-lg);
    position: relative;
    padding-bottom: 0.5rem;
  }

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

  h3 {
    font-size: 1.5rem;
    color: var(--text-light);
    margin-top: var(--spacing-md);
  }

  p {
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
  }

  .grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
  }

  .card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
  }

  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
  }

  .decorative-img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    object-fit: cover;
    aspect-ratio: 1/1;
  }

  .decorative-img:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  }

  pre {
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    overflow-x: auto;
    margin: var(--spacing-md) 0;
    border-left: 4px solid #6a11cb;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
  }

  code {
    font-family: 'Courier New', monospace;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9rem;
  }

  .nav-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
  }

  .nav-link {
    padding: 0.5rem 1rem;
    background: var(--accent);
    color: white;
    border-radius: 20px;
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }

  .nav-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
  }

  .footer {
    text-align: center;
    padding: var(--spacing-md);
    margin-top: var(--spacing-xl);
    font-size: 0.9rem;
    color: var(--text-dim);
  }

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

  @media (max-width: 768px) {
    .header {
      padding: var(--spacing-lg) 0;
    }
    
    h1 {
      font-size: 2rem;
    }
    
    h2 {
      font-size: 1.5rem;
    }
    
    .grid {
      grid-template-columns: 1fr;
    }
  }

  .disclaimer {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    text-align: center;
    font-size: 0.9rem;
  }