:root {
    --primary: #0f2027;
    --secondary: #203a43;
    --accent: #00ffcc;
    --text: #ffffff;
    --card-bg: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  }

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

  body {
    background: linear-gradient(135deg, var(--primary), var(--secondary), #2c5364);
    color: var(--text);
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    padding-top: 80px;
  }

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

  .design-notice {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px;
    text-align: center;
    margin-bottom: 30px;
    border-radius: 8px;
    border-left: 4px solid var(--accent);
    font-size: 16px;
  }

  article {
    background: rgba(32, 58, 67, 0.2);
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 50px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  }

  h2 {
    font-size: 32px;
    margin-bottom: 30px;
    background: linear-gradient(90deg, var(--accent), #6600ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    padding-bottom: 15px;
  }

  h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
  }

  h3 {
    font-size: 24px;
    margin: 30px 0 20px;
    color: var(--accent);
  }

  p {
    margin-bottom: 20px;
    font-size: 17px;
  }

  .img-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 30px 0;
  }

  .img-container {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    height: 320px;
  }

  .img-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 255, 204, 0.3);
  }

  .img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
  }

  .img-container:hover img {
    transform: scale(1.05);
  }

  pre {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 20px;
    margin: 25px 0;
    overflow-x: auto;
    border-left: 3px solid var(--accent);
    font-family: 'Courier New', monospace;
    font-size: 15px;
    line-height: 1.5;
  }

  code {
    color: var(--accent);
    font-family: 'Courier New', monospace;
  }

  .navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(32, 58, 67, 0.9);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    z-index: 1000;
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  }

  .nav-logo {
    font-size: 22px;
    font-weight: bold;
    background: linear-gradient(90deg, var(--accent), #6600ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .nav-menu {
    display: flex;
    gap: 30px;
    list-style: none;
  }

  .nav-item {
    position: relative;
    padding: 10px 0;
  }

  .nav-link {
    color: var(--text);
    text-decoration: none;
    font-size: 16px;
    transition: var(--transition);
  }

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

  .nav-item::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--accent);
    left: 0;
    bottom: 0;
    transition: var(--transition);
  }

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

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

  .card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 255, 204, 0.2);
    background: rgba(255, 255, 255, 0.15);
  }

  .footer {
    text-align: center;
    padding: 30px;
    margin-top: 50px;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  @media (max-width: 768px) {
    .nav-menu {
      gap: 15px;
    }
    
    article {
      padding: 25px;
    }
    
    h2 {
      font-size: 28px;
    }
    
    h3 {
      font-size: 22px;
    }
  }

  @media (max-width: 480px) {
    .navbar {
      padding: 15px 20px;
    }
    
    .nav-menu {
      gap: 10px;
    }
    
    .nav-link {
      font-size: 14px;
    }
    
    article {
      padding: 20px;
    }
    
    h2 {
      font-size: 24px;
    }
  }