:root {
    --primary: #0d47a1;
    --secondary: #00ffea;
    --accent: #ff00ff;
    --dark: #000000;
    --light: #ffffff;
    --gray: #1e1e1e;
    --font-main: 'Roboto', sans-serif;
  }

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

  body {
    font-family: var(--font-main);
    color: var(--light);
    background: linear-gradient(135deg, var(--primary), var(--dark));
    line-height: 1.6;
    overflow-x: hidden;
  }

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

  .design-notice {
    background: rgba(0,0,0,0.7);
    color: var(--secondary);
    text-align: center;
    padding: 10px;
    font-size: 14px;
    position: fixed;
    bottom: 0;
    width: 100%;
    z-index: 1000;
  }

  /* Navigation */
  .navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    z-index: 1000;
    backdrop-filter: blur(10px);
  }

  .nav-logo {
    color: var(--secondary);
    font-weight: 700;
    font-size: 1.5rem;
    text-decoration: none;
    transition: all 0.3s ease;
  }

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

  .nav-links {
    display: flex;
    gap: 25px;
  }

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

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

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

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

  /* Hero Section */
  .hero {
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px;
    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(13,71,161,0.3), rgba(0,0,0,0.8));
    z-index: -1;
  }

  .hero-content {
    max-width: 800px;
  }

  .hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--secondary);
    text-shadow: 0 0 10px rgba(0,255,234,0.5);
    animation: glow 2s infinite alternate;
  }

  @keyframes glow {
    from {
      text-shadow: 0 0 10px rgba(0,255,234,0.5);
    }
    to {
      text-shadow: 0 0 20px rgba(0,255,234,0.8), 0 0 30px rgba(0,255,234,0.6);
    }
  }

  .hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: rgba(255,255,255,0.9);
  }

  .hero-images {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
  }

  .hero-image {
    width: 150px;
    height: 150px;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
    filter: grayscale(30%);
  }

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

  /* Article Content */
  .main-content {
    padding: 100px 0;
  }

  article {
    background: rgba(30,30,30,0.7);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 60px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    backdrop-filter: blur(5px);
  }

  article h2 {
    font-size: 2rem;
    color: var(--secondary);
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
  }

  article h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
  }

  article h3 {
    font-size: 1.5rem;
    color: var(--secondary);
    margin: 30px 0 20px;
  }

  article p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.8;
  }

  /* Code Blocks */
  pre {
    background: rgba(0,0,0,0.5);
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    overflow: auto;
    border-left: 4px solid var(--secondary);
  }

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

  /* Tables */
  table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    background: rgba(30,30,30,0.5);
    border-radius: 10px;
    overflow: hidden;
  }

  th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }

  th {
    background: rgba(0,255,234,0.1);
    color: var(--secondary);
    font-weight: 500;
  }

  tr:hover {
    background: rgba(0,255,234,0.05);
  }

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

  .gallery-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
    position: relative;
  }

  .gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
  }

  .gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

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

  .gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 15px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .gallery-item:hover .gallery-caption {
    opacity: 1;
  }

  /* Cards */
  .card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
  }

  .card {
    background: rgba(30,30,30,0.7);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
    border: 1px solid rgba(0,255,234,0.1);
  }

  .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.3);
    border-color: rgba(0,255,234,0.3);
  }

  .card h4 {
    color: var(--secondary);
    margin-bottom: 15px;
    font-size: 1.3rem;
  }

  /* Animations */
  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 1s forwards;
  }

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

  .slide-in {
    opacity: 0;
    transform: translateX(-50px);
    animation: slideIn 1s forwards;
  }

  @keyframes slideIn {
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  /* Buttons */
  .btn {
    display: inline-block;
    padding: 12px 25px;
    background: linear-gradient(45deg, var(--secondary), var(--accent));
    color: var(--dark);
    border: none;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,255,234,0.3);
  }

  .btn:hover {
    background: linear-gradient(45deg, var(--accent), var(--secondary));
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255,0,255,0.4);
  }

  /* Responsive */
  @media (max-width: 768px) {
    .navbar {
      flex-direction: column;
      padding: 15px;
    }

    .nav-links {
      margin-top: 15px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .hero h1 {
      font-size: 2.2rem;
    }

    .hero-images {
      flex-wrap: wrap;
    }

    .hero-image {
      width: 120px;
      height: 120px;
    }

    article {
      padding: 25px;
    }

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

  @media (max-width: 480px) {
    .hero h1 {
      font-size: 1.8rem;
    }

    article h2 {
      font-size: 1.5rem;
    }

    article h3 {
      font-size: 1.3rem;
    }
  }