@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&family=Roboto:wght@300;400;500&display=swap');
  
  :root {
    --primary: #0d1b2a;
    --primary-light: #1b263b;
    --secondary: #3282b8;
    --accent: #0f4c75;
    --highlight: #00b4d8;
    --text: #e0e0e0;
    --text-light: #f8f9fa;
    --card-bg: rgba(27, 38, 59, 0.8);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--text);
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  /* Header Styles */
  header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(13, 27, 42, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
  }
  
  header.scrolled {
    background: rgba(13, 27, 42, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  }
  
  .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
  }
  
  .logo {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-light);
    text-decoration: none;
    display: flex;
    align-items: center;
  }
  
  .logo span {
    color: var(--highlight);
  }
  
  .nav-links {
    display: flex;
    list-style: none;
  }
  
  .nav-links li {
    margin-left: 30px;
  }
  
  .nav-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
  }
  
  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--highlight);
    transition: var(--transition);
  }
  
  .nav-links a:hover::after {
    width: 100%;
  }
  
  /* Hero Section */
  .hero {
    height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
  }
  
  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, rgba(0, 180, 216, 0.1) 0%, rgba(13, 27, 42, 0.9) 70%);
    z-index: -1;
  }
  
  .hero-content {
    max-width: 600px;
  }
  
  .hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--text-light), var(--highlight));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  
  .hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
  }
  
  .hero-image {
    position: absolute;
    right: -50px;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    max-width: 600px;
    z-index: -1;
    opacity: 0.8;
  }
  
  .hero-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  }
  
  /* Button Styles */
  .btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(45deg, var(--secondary), var(--accent));
    color: var(--text-light);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(50, 130, 184, 0.4);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
  }
  
  .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
  }
  
  .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(50, 130, 184, 0.6);
  }
  
  .btn:hover::before {
    left: 100%;
  }
  
  /* Main Content */
  main {
    padding: 100px 0;
  }
  
  section {
    margin-bottom: 80px;
    position: relative;
  }
  
  .section-header {
    text-align: center;
    margin-bottom: 60px;
  }
  
  .section-header h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
  }
  
  .section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary), var(--highlight));
  }
  
  .section-header p {
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.8;
  }
  
  /* Article Styles */
  article {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    margin-bottom: 60px;
  }
  
  article h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--highlight);
  }
  
  article p {
    margin-bottom: 20px;
    line-height: 1.8;
  }
  
  article strong {
    color: var(--highlight);
    font-weight: 500;
  }
  
  article span {
    color: var(--highlight);
    font-weight: 500;
  }
  
  /* Code Block Styles */
  pre {
    background: rgba(13, 27, 42, 0.8);
    border-radius: 10px;
    padding: 20px;
    margin: 30px 0;
    overflow: auto;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
    border-left: 4px solid var(--highlight);
  }
  
  code {
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9rem;
    color: var(--text-light);
  }
  
  /* Card Grid */
  .card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
  }
  
  .card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
  }
  
  .card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--secondary), var(--highlight));
  }
  
  .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
  }
  
  .card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-light);
  }
  
  .card p {
    opacity: 0.8;
    margin-bottom: 20px;
  }
  
  .card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  }
  
  /* Footer */
  footer {
    background: rgba(13, 27, 42, 0.9);
    padding: 60px 0 30px;
    text-align: center;
  }
  
  .footer-links {
    display: flex;
    justify-content: center;
    list-style: none;
    margin-bottom: 30px;
  }
  
  .footer-links li {
    margin: 0 15px;
  }
  
  .footer-links a {
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
  }
  
  .footer-links a:hover {
    color: var(--highlight);
  }
  
  .copyright {
    opacity: 0.6;
    font-size: 0.9rem;
  }
  
  /* Animations */
  @keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
  }
  
  .floating {
    animation: float 6s ease-in-out infinite;
  }
  
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .fade-in {
    animation: fadeIn 1s ease forwards;
  }
  
  /* Responsive Styles */
  @media (max-width: 992px) {
    .hero h1 {
      font-size: 2.8rem;
    }
    
    .hero-image {
      width: 45%;
      opacity: 0.6;
    }
  }
  
  @media (max-width: 768px) {
    .nav-container {
      flex-direction: column;
    }
    
    .nav-links {
      margin-top: 20px;
    }
    
    .nav-links li {
      margin: 0 15px;
    }
    
    .hero {
      height: auto;
      padding: 150px 0 80px;
      text-align: center;
    }
    
    .hero-content {
      max-width: 100%;
    }
    
    .hero-image {
      position: relative;
      right: auto;
      top: auto;
      transform: none;
      width: 100%;
      max-width: 100%;
      margin-top: 40px;
      opacity: 1;
    }
    
    .section-header h2 {
      font-size: 2rem;
    }
    
    article {
      padding: 30px;
    }
  }
  
  @media (max-width: 576px) {
    .hero h1 {
      font-size: 2.2rem;
    }
    
    .nav-links {
      flex-wrap: wrap;
      justify-content: center;
    }
    
    .nav-links li {
      margin: 10px 15px;
    }
    
    .section-header h2 {
      font-size: 1.8rem;
    }
    
    .card-grid {
      grid-template-columns: 1fr;
    }
  }
  
  /* Utility Classes */
  .mt-1 { margin-top: 10px; }
  .mt-2 { margin-top: 20px; }
  .mt-3 { margin-top: 30px; }
  .mt-4 { margin-top: 40px; }
  .mt-5 { margin-top: 50px; }
  
  .mb-1 { margin-bottom: 10px; }
  .mb-2 { margin-bottom: 20px; }
  .mb-3 { margin-bottom: 30px; }
  .mb-4 { margin-bottom: 40px; }
  .mb-5 { margin-bottom: 50px; }
  
  .text-center { text-align: center; }
  .text-right { text-align: right; }
  
  .opacity-75 { opacity: 0.75; }
  
  /* Notification */
  .notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--card-bg);
    color: var(--text-light);
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.5s ease;
    border-left: 4px solid var(--highlight);
  }
  
  .notification.show {
    transform: translateY(0);
    opacity: 1;
  }