:root {
    --primary-dark: #1E3A8A;
    --primary-light: #3B82F6;
    --accent-green: #10B981;
    --accent-purple: #8B5CF6;
    --text-light: #FFFFFF;
    --text-dark: #111827;
    --bg-gradient: linear-gradient(135deg, var(--primary-dark), var(--accent-purple));
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

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

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

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
  }

  header {
    padding: 30px 0;
    position: relative;
    z-index: 10;
  }

  .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .logo-icon {
    width: 32px;
    height: 32px;
    fill: var(--accent-green);
  }

  .nav-links {
    display: flex;
    gap: 30px;
  }

  .nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
  }

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

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

  .hero {
    padding: 80px 0;
    position: relative;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, rgba(59, 130, 246, 0.2) 0%, transparent 50%);
    z-index: -1;
  }

  .hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
  }

  .hero-title {
    font-size: 48px;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--text-light), var(--accent-green));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: fadeIn 1s ease-out;
  }

  .hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
  }

  .hero-image {
    width: 100%;
    max-width: 600px;
    margin: 40px auto 0;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
  }

  .hero-image:hover {
    transform: translateY(-5px);
  }

  .section {
    padding: 80px 0;
  }

  .section-title {
    font-size: 36px;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
  }

  .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-light), var(--accent-green));
    border-radius: 3px;
  }

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

  .card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.3);
  }

  .card-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 20px;
    fill: var(--accent-green);
  }

  .card-title {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-light);
  }

  .card-text {
    opacity: 0.8;
    margin-bottom: 20px;
  }

  .content-section {
    background: rgba(30, 58, 138, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 50px;
    margin: 60px 0;
    box-shadow: var(--card-shadow);
  }

  article {
    max-width: 800px;
    margin: 0 auto;
  }

  article h2 {
    font-size: 32px;
    margin: 40px 0 20px;
    color: var(--accent-green);
  }

  article h3 {
    font-size: 26px;
    margin: 30px 0 15px;
    color: var(--primary-light);
  }

  article p {
    margin-bottom: 20px;
    font-size: 18px;
    line-height: 1.7;
  }

  pre {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    padding: 20px;
    margin: 30px 0;
    overflow-x: auto;
    border-left: 4px solid var(--accent-green);
    font-family: 'Courier New', monospace;
    font-size: 16px;
    line-height: 1.5;
  }

  code {
    font-family: 'Courier New', monospace;
    background: rgba(0, 0, 0, 0.2);
    padding: 2px 5px;
    border-radius: 3px;
    font-size: 15px;
  }

  .image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin: 40px 0;
  }

  .gallery-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 10px;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }

  .gallery-image:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  }

  .footer {
    background: rgba(0, 0, 0, 0.3);
    padding: 40px 0;
    margin-top: 80px;
    text-align: center;
  }

  .footer-text {
    opacity: 0.7;
    font-size: 14px;
  }

  .reference {
    background: rgba(16, 185, 129, 0.2);
    padding: 15px;
    border-radius: 8px;
    margin: 30px 0;
    text-align: center;
    font-weight: 500;
  }

  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @media (max-width: 768px) {
    .hero-title {
      font-size: 36px;
    }
    
    .hero-subtitle {
      font-size: 18px;
    }
    
    .nav-links {
      display: none;
    }
    
    .content-section {
      padding: 30px;
    }
    
    article h2 {
      font-size: 28px;
    }
    
    article h3 {
      font-size: 22px;
    }
  }

  @media (max-width: 480px) {
    .hero-title {
      font-size: 28px;
    }
    
    .section-title {
      font-size: 28px;
    }
    
    .card-grid {
      grid-template-columns: 1fr;
    }
    
    .content-section {
      padding: 20px;
    }
  }