:root {
    --primary-dark: #0d1b2a;
    --primary-mid: #1b263b;
    --primary-light: #415a77;
    --accent-blue: #00a8e8;
    --accent-green: #00ffaa;
    --accent-purple: #9c27b0;
    --text-light: #e0e1dd;
    --text-gray: #778da9;
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', 'Montserrat', sans-serif;
  }

  body {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-mid));
    color: var(--text-light);
    line-height: 1.6;
    min-height: 100%;
    overflow-x: hidden;
  }

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

  header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(13, 27, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    padding: 15px 0;
  }

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

  .logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration: none;
  }

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

  .nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.3s;
  }

  .nav-links a:hover {
    color: var(--accent-green);
  }

  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-green);
    transition: width 0.3s;
  }

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

  .hero {
    padding: 180px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(0, 168, 232, 0.1) 0%, transparent 70%);
    z-index: -1;
  }

  .hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--text-light), var(--accent-green));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: textGlow 3s ease-in-out infinite alternate;
  }

  @keyframes textGlow {
    from {
      text-shadow: 0 0 10px rgba(0, 255, 170, 0.3);
    }
    to {
      text-shadow: 0 0 20px rgba(0, 255, 170, 0.6), 0 0 30px rgba(0, 168, 232, 0.4);
    }
  }

  .hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    color: var(--text-gray);
  }

  .notice {
    background: rgba(0, 255, 170, 0.1);
    border: 1px solid var(--accent-green);
    border-radius: 8px;
    padding: 15px;
    margin: 40px auto;
    max-width: 800px;
    text-align: center;
    animation: pulse 2s infinite;
  }

  @keyframes pulse {
    0% {
      box-shadow: 0 0 0 0 rgba(0, 255, 170, 0.4);
    }
    70% {
      box-shadow: 0 0 0 10px rgba(0, 255, 170, 0);
    }
    100% {
      box-shadow: 0 0 0 0 rgba(0, 255, 170, 0);
    }
  }

  .content-section {
    padding: 80px 0;
    position: relative;
  }

  .content-section:nth-child(even) {
    background: rgba(27, 38, 59, 0.5);
  }

  .section-title {
    font-size: 2.5rem;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
  }

  .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent-green);
  }

  article {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px;
    background: rgba(27, 38, 59, 0.7);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }

  article h2 {
    font-size: 2rem;
    margin: 40px 0 20px;
    color: var(--accent-blue);
  }

  article h3 {
    font-size: 1.5rem;
    margin: 30px 0 15px;
    color: var(--accent-green);
  }

  article p {
    margin-bottom: 20px;
    font-size: 1.1rem;
  }

  article code {
    background: rgba(13, 27, 42, 0.8);
    color: var(--accent-green);
    padding: 2px 5px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
  }

  pre {
    background: rgba(13, 27, 42, 0.9);
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 20px 0;
    border-left: 3px solid var(--accent-green);
  }

  pre code {
    background: transparent;
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin: 40px 0;
  }

  .image-card {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
  }

  .image-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 255, 170, 0.2);
  }

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

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

  .image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 20px;
    color: white;
    transform: translateY(100%);
    transition: transform 0.3s;
  }

  .image-card:hover .image-caption {
    transform: translateY(0);
  }

  footer {
    background: var(--primary-dark);
    padding: 40px 0;
    text-align: center;
  }

  .footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
  }

  .footer-links a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s;
  }

  .footer-links a:hover {
    color: var(--accent-green);
  }

  .copyright {
    color: var(--text-gray);
    font-size: 0.9rem;
  }

  @media (max-width: 768px) {
    .nav-links {
      gap: 15px;
    }

    .hero h1 {
      font-size: 2.5rem;
    }

    .image-grid {
      grid-template-columns: 1fr;
    }

    article {
      padding: 20px;
    }
  }

  @media (max-width: 480px) {
    .header-content {
      flex-direction: column;
      gap: 15px;
    }

    .nav-links {
      flex-wrap: wrap;
      justify-content: center;
    }

    .hero {
      padding: 150px 0 60px;
    }

    .hero h1 {
      font-size: 2rem;
    }
  }