:root {
    --primary: #0d0d2b;
    --secondary: #1a1a40;
    --accent: #39ff14;
    --accent2: #8a2be2;
    --accent3: #00ffff;
    --text: #ffffff;
    --text-secondary: rgba(255,255,255,0.7);
    --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 {
    font-family: 'Montserrat', sans-serif;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
  }

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

  header {
    position: relative;
    padding: 40px 0;
    text-align: center;
    background: linear-gradient(to right, transparent, rgba(57, 255, 20, 0.1), transparent);
    margin-bottom: 60px;
    border-bottom: 1px solid rgba(57, 255, 20, 0.3);
  }

  .header-content {
    position: relative;
    z-index: 2;
  }

  h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, var(--accent), var(--accent3));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 15px rgba(57, 255, 20, 0.3);
  }

  .subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 30px;
  }

  .notice {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: rgba(0,0,0,0.7);
    padding: 10px 15px;
    border-radius: 5px;
    font-size: 0.9rem;
    z-index: 100;
    border-left: 3px solid var(--accent);
  }

  .nav-container {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(13, 13, 43, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(57, 255, 20, 0.2);
  }

  nav {
    display: flex;
    justify-content: center;
    padding: 15px 0;
  }

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

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

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

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

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

  article {
    max-width: 900px;
    margin: 0 auto 80px;
    padding: 0 20px;
  }

  h2 {
    font-size: 2rem;
    margin: 50px 0 20px;
    color: var(--accent);
    position: relative;
    padding-bottom: 10px;
  }

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

  h3 {
    font-size: 1.5rem;
    margin: 30px 0 15px;
    color: var(--accent3);
  }

  p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.7;
  }

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

  .img-card {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: var(--transition);
    position: relative;
  }

  .img-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(57, 255, 20, 0.2);
  }

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

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

  pre {
    background: rgba(0,0,0,0.5);
    border-left: 3px solid var(--accent);
    padding: 20px;
    border-radius: 5px;
    overflow-x: auto;
    margin: 30px 0;
    font-size: 0.9rem;
    line-height: 1.5;
    position: relative;
  }

  pre:before {
    content: 'CSS';
    position: absolute;
    top: 0;
    left: 0;
    background: var(--accent);
    color: var(--primary);
    padding: 2px 10px;
    font-size: 0.8rem;
    border-bottom-right-radius: 5px;
  }

  code {
    font-family: 'Courier New', monospace;
    color: var(--accent3);
  }

  .card-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin: 50px 0;
  }

  .content-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: var(--transition);
    border: 1px solid rgba(57, 255, 20, 0.1);
  }

  .content-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(57, 255, 20, 0.3);
    border-color: rgba(57, 255, 20, 0.3);
  }

  .particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
  }

  .particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent);
    border-radius: 50%;
    animation: moveParticles linear infinite;
  }

  @keyframes moveParticles {
    0% {
      transform: translateY(0) translateX(0);
      opacity: 0;
    }
    10% {
      opacity: 1;
    }
    90% {
      opacity: 1;
    }
    100% {
      transform: translateY(-100vh) translateX(100px);
      opacity: 0;
    }
  }

  footer {
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid rgba(57, 255, 20, 0.2);
    margin-top: 80px;
  }

  @media (max-width: 768px) {
    h1 {
      font-size: 2rem;
    }
    
    h2 {
      font-size: 1.5rem;
    }
    
    .nav-links {
      gap: 15px;
    }
    
    .card-container {
      grid-template-columns: 1fr;
    }
  }