:root {
    --primary: linear-gradient(135deg, #1e3c72, #2a5298);
    --secondary: rgba(30, 60, 114, 0.8);
    --accent: #a3d5ff;
    --text: #ffffff;
    --glass: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  }

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

  body {
    font-family: 'Roboto', sans-serif;
    color: var(--text);
    background: var(--primary);
    line-height: 1.6;
    overflow-x: hidden;
  }

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

  /* Header */
  header {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--secondary);
    padding: 15px 0;
    backdrop-filter: blur(5px);
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  }

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

  .logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--accent), #ffffff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

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

  .nav-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: color 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 {
    padding: 150px 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 30% 50%, rgba(106, 17, 203, 0.3), transparent 70%);
    z-index: -1;
  }

  .hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, #ffffff, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
  }

  .hero-images {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 50px;
    flex-wrap: wrap;
  }

  .hero-img {
    width: 320px;
    height: 320px;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: var(--shadow);
    transition: transform 0.5s ease, box-shadow 0.5s ease;
  }

  .hero-img:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
  }

  /* Main Content */
  main {
    padding: 80px 0;
  }

  article {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 60px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.18);
  }

  article h2 {
    font-size: 2.2rem;
    margin-bottom: 30px;
    color: var(--accent);
    position: relative;
    padding-bottom: 15px;
  }

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

  article h3 {
    font-size: 1.8rem;
    margin: 40px 0 20px;
    color: var(--accent);
  }

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

  .highlight {
    color: var(--accent);
    font-weight: 500;
  }

  /* Code Blocks */
  pre {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    padding: 20px;
    margin: 30px 0;
    overflow-x: auto;
    border-left: 4px solid var(--accent);
  }

  code {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--accent);
  }

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

  .grid-item {
    background: var(--glass);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(5px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .grid-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
  }

  /* Footer */
  footer {
    text-align: center;
    padding: 30px 0;
    background: rgba(0, 0, 0, 0.2);
    margin-top: 80px;
  }

  .footer-note {
    font-size: 0.9rem;
    opacity: 0.7;
  }

  /* Responsive */
  @media (max-width: 1024px) {
    .hero h1 {
      font-size: 2.5rem;
    }
  }

  @media (max-width: 768px) {
    .nav-links {
      display: none;
    }

    .hero {
      padding: 120px 0 80px;
    }

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

    article {
      padding: 30px;
    }
  }

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

    article {
      padding: 20px;
    }

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

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

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

  /* Dynamic Lines */
  .dynamic-lines {
    position: fixed;
    width: 100%;
    height: 100%;
    overflow: hidden;
    top: 0;
    left: 0;
    z-index: -1;
  }

  .line {
    position: absolute;
    width: 1px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    animation: moveLine 15s linear infinite;
  }

  @keyframes moveLine {
    from {
      transform: translateY(-100px);
    }
    to {
      transform: translateY(100vh);
    }
  }