:root {
    --primary: #1e3c72;
    --secondary: #6a3093;
    --accent: #ff7e5f;
    --text: #ffffff;
    --bg-gradient: linear-gradient(135deg, var(--primary), #2a5298, var(--secondary));
  }

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

  body {
    font-family: 'Roboto', sans-serif;
    color: var(--text);
    background: var(--bg-gradient);
    line-height: 1.6;
    min-height: 100%;
    overflow-x: hidden;
  }

  .header {
    text-align: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
  }

  .header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, rgba(255,255,255,0.1) 0%, transparent 50%);
    z-index: -1;
  }

  h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    margin: 1.5rem 0;
    position: relative;
  }

  h2 {
    font-size: 2.2rem;
    text-align: center;
    padding: 1rem;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  }

  h3 {
    font-size: 1.8rem;
    border-left: 5px solid var(--accent);
    padding-left: 1rem;
    margin-top: 3rem;
  }

  p {
    margin: 1rem 0;
    font-size: 1.1rem;
  }

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

  .content-block {
    background: rgba(30, 60, 114, 0.7);
    border-radius: 15px;
    padding: 2rem;
    margin: 3rem 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .content-block:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.4);
  }

  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
  }

  .image-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
  }

  .image-card:hover {
    transform: scale(1.03);
  }

  .image-card img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
  }

  .image-card:hover img {
    transform: scale(1.1);
  }

  .image-card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.7)));
  }

  pre {
    background: rgba(0,0,0,0.3);
    border-radius: 10px;
    padding: 1.5rem;
    margin: 2rem 0;
    overflow: auto;
    border-left: 4px solid var(--accent);
    font-family: 'Courier New', monospace;
    position: relative;
  }

  pre::before {
    content: "CSS";
    position: absolute;
    top: 0;
    right: 0;
    background: var(--accent);
    color: white;
    padding: 0.2rem 0.8rem;
    border-radius: 0 0 0 10px;
    font-size: 0.9rem;
  }

  code {
    font-family: 'Courier New', monospace;
    background: rgba(0,0,0,0.2);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
  }

  table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: rgba(0,0,0,0.2);
    border-radius: 10px;
    overflow: hidden;
  }

  th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }

  th {
    background: rgba(255,255,255,0.1);
    font-weight: bold;
  }

  tr:hover {
    background: rgba(255,255,255,0.05);
  }

  .notice {
    background: rgba(255,255,255,0.1);
    border-left: 4px solid var(--accent);
    padding: 1rem;
    margin: 2rem 0;
    border-radius: 0 5px 5px 0;
    animation: pulse 2s infinite;
  }

  @keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255,126,95,0.4); }
    70% { box-shadow: 0 0 0 10px rgba(255,126,95,0); }
    100% { box-shadow: 0 0 0 0 rgba(255,126,95,0); }
  }

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

  .nav-link {
    padding: 0.8rem 1.5rem;
    background: rgba(255,255,255,0.1);
    border-radius: 50px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }

  .nav-link::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
  }

  .nav-link:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-3px);
  }

  .nav-link:hover::before {
    left: 100%;
  }

  @media (max-width: 768px) {
    .container {
      padding: 0 1rem;
    }
    
    h2 {
      font-size: 1.8rem;
    }
    
    h3 {
      font-size: 1.5rem;
    }
    
    .content-block {
      padding: 1.5rem;
    }
    
    .image-grid {
      grid-template-columns: 1fr;
    }
  }