:root {
    --primary: #0D1B2A;
    --secondary: #4B0082;
    --accent: #7FFF00;
    --highlight: #FF69B4;
    --text: #E0E0E0;
    --card-bg: rgba(255, 255, 255, 0.08);
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  }

  @font-face {
    font-family: 'Montserrat';
    src: url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap');
  }

  @font-face {
    font-family: 'Roboto';
    src: url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500&display=swap');
  }

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

  body {
    background: radial-gradient(circle at 20% 30%, var(--primary), var(--secondary));
    color: var(--text);
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
  }

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

  .hero {
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 80px 0;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample1.png') center/cover no-repeat;
    opacity: 0.2;
    z-index: -1;
  }

  .hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
  }

  .hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.5rem;
    margin-bottom: 30px;
    background: linear-gradient(90deg, var(--accent), var(--highlight));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 20px rgba(127, 255, 0, 0.3);
  }

  .hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
  }

  .tech-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(127, 255, 0, 0.1);
    border: 1px solid var(--accent);
    border-radius: 30px;
    margin: 0 10px 15px 0;
    font-size: 0.9rem;
    transition: var(--transition);
  }

  .tech-badge:hover {
    background: rgba(127, 255, 0, 0.3);
    transform: translateY(-3px);
  }

  .content-section {
    padding: 100px 0;
    position: relative;
  }

  .content-section:nth-child(even) {
    background: rgba(13, 27, 42, 0.7);
  }

  .section-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 50px;
    text-align: center;
    position: relative;
  }

  .section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--highlight));
    margin: 20px auto;
    border-radius: 2px;
  }

  .article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
    background: var(--card-bg);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
  }

  .article-content h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    margin: 40px 0 20px;
    color: var(--accent);
  }

  .article-content h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    margin: 30px 0 15px;
    color: var(--highlight);
  }

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

  pre {
    background: rgba(0, 0, 0, 0.3);
    border-left: 4px solid var(--accent);
    border-radius: 5px;
    padding: 20px;
    margin: 25px 0;
    overflow: auto;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
  }

  code {
    font-family: 'Roboto Mono', monospace;
    background: rgba(0, 0, 0, 0.2);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.9rem;
  }

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

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

  .image-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
  }

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

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

  .image-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  }

  .nav-links {
    position: fixed;
    top: 30px;
    right: 30px;
    z-index: 100;
  }

  .nav-links a {
    color: var(--text);
    text-decoration: none;
    margin-left: 20px;
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    padding: 8px 15px;
    border-radius: 20px;
    transition: var(--transition);
  }

  .nav-links a:hover {
    background: rgba(127, 255, 0, 0.2);
    color: var(--accent);
  }

  .footer-note {
    text-align: center;
    padding: 30px;
    font-size: 0.9rem;
    opacity: 0.7;
  }

  @media (max-width: 768px) {
    .hero h1 {
      font-size: 2.5rem;
    }
    
    .section-title {
      font-size: 2rem;
    }
    
    .article-content {
      padding: 20px;
    }
    
    .image-grid {
      grid-template-columns: 1fr;
    }
    
    .nav-links {
      top: 20px;
      right: 20px;
    }
    
    .nav-links a {
      margin-left: 10px;
      font-size: 0.9rem;
      padding: 5px 10px;
    }
  }

  /* Animations */
  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
  }

  .floating {
    animation: float 6s ease-in-out infinite;
  }

  .pulsing {
    animation: pulse 3s ease-in-out infinite;
  }

  /* Scroll animations */
  [data-scroll] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  [data-scroll="fadeIn"] {
    transform: translateY(50px);
  }

  [data-scroll="fadeInLeft"] {
    transform: translateX(-50px);
  }

  [data-scroll="fadeInRight"] {
    transform: translateX(50px);
  }

  [data-scroll].is-visible {
    opacity: 1;
    transform: translate(0);
  }