* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, #e0f7fa 0%, #e8eaf6 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  nav {
    background-color: white;
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    display: flex;
    justify-content: space-between;
  }
  
  .logo {
    color: #2196f3;
    font-size: 1.5rem;
    text-decoration: none;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .contact-button {
    background-color: #2196f3;
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.2s ease;
  }
  
  .contact-button:hover {
    background-color: #1976d2;
  }
  
  .page-content {
    max-width: 900px;
    width: 80%;
    margin: 2rem auto;
    background-color: white;
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid #e0e0e0;
  }
  
  .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem;
  }
  
  .breadcrumb {
    color: #666;
    margin-bottom: 1.5rem;
  }
  
  .breadcrumb a {
    color: #2196f3;
    text-decoration: none;
  }
  
  .step-detail {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .step-detail h1 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #2196f3;
  }
  
  .step-section {
    margin-bottom: 2.5rem;
  }
  
  .step-section h2 {
    color: #2196f3;
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  
  .step-section h3 {
    font-size: 1.2rem;
    margin: 1.5rem 0 0.5rem;
    color: #333;
  }
  
  .step-section p {
    margin-bottom: 1rem;
    color: #444;
  }
  
  .step-section ul, 
  .step-section ol {
    margin: 1rem 0;
    padding-left: 1.2rem;
  }
  
  .step-section li {
    margin-bottom: 0.5rem;
    color: #444;
  }
  
  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
  }
  
  .step-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }
  
  .navigation-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
    gap: 1rem;
  }
  
  .nav-button {
    background-color: #2196f3;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s ease;
  }
  
  .nav-button:hover {
    background-color: #1976d2;
  }
  
  footer {
    background: white;
    color: #666;
    text-align: center;
    padding: 1.5rem;
    margin-top: auto;
    box-shadow: 0 -2px 4px rgba(0,0,0,0.05);
  }
  
  .footer-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2196f3;
    margin-bottom: 0.5rem;
  }
  
  .footer-credits {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: #666;
  }
  
  .footer-link {
    color: #2196f3;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
  }
  
  .footer-link:hover {
    color: #1976d2;
  }
  
  pre {
    background-color: #f5f5f5;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0;
    font-size: 0.9rem;
    line-height: 1.4;
  }
  .styled-link {
    color: #2196f3;
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
}

.styled-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background-color: #2196f3;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.styled-link:hover {
    color: #1976d2;
}

.styled-link:hover::after {
    transform: scaleX(1);
}




  @media screen and (max-width: 768px) {
    .page-content {
      width: 90%;
      margin: 1rem auto;
      padding: 1rem;
    }
  
    .container {
      padding: 0.5rem;
    }
  
    .step-detail h1 {
      font-size: 1.75rem;
      margin-bottom: 1.5rem;
    }
  
    .step-section h2 {
      font-size: 1.3rem;
    }
  
    .step-section h3 {
      font-size: 1.1rem;
    }
  
    .image-grid {
      grid-template-columns: 1fr;
      gap: 1rem;
    }
  
    .navigation-buttons {
      flex-direction: column;
      gap: 0.75rem;
    }
  
    .nav-button {
      width: 100%;
      text-align: center;
    }
  
    .footer-credits {
      flex-direction: column;
      gap: 0.5rem;
    }
  
    nav {
      padding: 0.75rem 1rem;
    }
  
    .logo {
      font-size: 1.2rem;
    }
  
    .contact-button {
      padding: 0.4rem 1rem;
      font-size: 0.9rem;
    }
  }
  
  @media screen and (max-width: 480px) {
    .page-content {
      width: 95%;
      margin: 0.5rem auto;
      padding: 0.75rem;
      border-radius: 8px;
    }
  
    .step-detail h1 {
      font-size: 1.5rem;
    }
  
    .step-section h2 {
      font-size: 1.2rem;
    }
  
    .breadcrumb {
      margin-bottom: 1rem;
      font-size: 0.9rem;
    }
  
    pre {
      font-size: 0.8rem;
      padding: 0.75rem;
    }
}