:root {
    --primary: #0f0c29;
    --secondary: #302b63;
    --accent: #00e5ff;
    --text: #ffffff;
    --highlight: #ff5722;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  }

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

  body {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--text);
    font-family: 'Montserrat', sans-serif;
    line-height: 1.8;
    overflow-x: hidden;
  }

  .design-notice {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(0,0,0,0.7);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 14px;
    z-index: 1000;
    box-shadow: var(--shadow);
    border: 1px solid var(--accent);
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px;
  }

  header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
  }

  header::after {
    content: '';
    display: block;
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
    margin: 30px auto;
  }

  h1, h2, h3 {
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 0 10px rgba(0,0,0,0.5);
  }

  h1 {
    font-size: 2.5rem;
    background: linear-gradient(90deg, var(--accent), #ff4081);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

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

  h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    height: 60%;
    width: 5px;
    background: var(--highlight);
  }

  h3 {
    font-size: 1.5rem;
    color: var(--text);
    margin-top: 30px;
  }

  p {
    margin-bottom: 25px;
    font-size: 1.1rem;
  }

  article {
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 50px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255,255,255,0.1);
  }

  .img-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 50px 0;
  }

  .img-card {
    background: rgba(255,255,255,0.05);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
  }

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

  .img-card img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 15px 15px 0 0;
  }

  .img-caption {
    padding: 20px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
  }

  pre {
    background: rgba(0,0,0,0.5);
    border-radius: 10px;
    padding: 20px;
    margin: 30px 0;
    overflow: auto;
    border-left: 3px solid var(--highlight);
  }

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

  .nav-links {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    z-index: 100;
  }

  .nav-link {
    width: 12px;
    height: 12px;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    margin: 10px 0;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
  }

  .nav-link:hover, .nav-link.active {
    background: var(--accent);
    transform: scale(1.5);
  }

  .nav-link::after {
    content: attr(data-title);
    position: absolute;
    right: 25px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.7);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 12px;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
  }

  .nav-link:hover::after {
    opacity: 1;
  }

  @media (max-width: 768px) {
    .container {
      padding: 40px 15px;
    }
    
    article {
      padding: 30px;
    }
    
    h1 {
      font-size: 2rem;
    }
    
    h2 {
      font-size: 1.5rem;
    }
    
    .img-grid {
      grid-template-columns: 1fr;
    }
    
    .nav-links {
      display: none;
    }
  }

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

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