:root {
    --primary: #1e3c72;
    --secondary: #2a5298;
    --accent: #ff9800;
    --neutral: #f5f7fa;
    --text: #333333;
    --light: #ffffff;
    --dark: #0a1a3a;
  }

  @font-face {
    font-family: 'Roboto';
    src: local('Roboto Bold'), local('Roboto-Bold');
    font-weight: 700;
    font-style: normal;
  }

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

  body {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--light);
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
  }

  .background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #6a11cb, #2575fc);
    z-index: -2;
  }

  .particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
  }

  .particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    animation: float 15s linear infinite;
  }

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

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 20px 150px;
    position: relative;
  }

  .navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(30, 60, 114, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    padding: 15px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    transition: all 0.3s ease;
  }

  .navbar.scrolled {
    padding: 10px 0;
    background: rgba(10, 26, 58, 0.98);
  }

  .nav-container {
    width: 100%;
    max-width: 1200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
  }

  .logo {
    font-family: 'Roboto', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light);
    text-decoration: none;
    display: flex;
    align-items: center;
  }

  .logo-icon {
    margin-right: 10px;
    color: var(--accent);
  }

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

  .nav-link {
    color: var(--light);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 5px 0;
  }

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

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

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

  .hero {
    text-align: center;
    padding: 120px 0 80px;
    position: relative;
  }

  .hero h1 {
    font-family: 'Roboto', sans-serif;
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, var(--light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeIn 1s ease;
  }

  .hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    color: rgba(255, 255, 255, 0.8);
  }

  .notice {
    background: rgba(255, 152, 0, 0.1);
    border: 1px solid rgba(255, 152, 0, 0.3);
    padding: 15px;
    border-radius: 8px;
    max-width: 800px;
    margin: 40px auto;
    text-align: center;
    font-size: 0.9rem;
    color: var(--accent);
  }

  .content-section {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 50px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .content-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
  }

  h2 {
    font-family: 'Roboto', sans-serif;
    font-size: 2.2rem;
    margin-bottom: 25px;
    color: var(--light);
    position: relative;
    padding-bottom: 10px;
  }

  h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
  }

  h3 {
    font-family: 'Roboto', sans-serif;
    font-size: 1.6rem;
    margin: 30px 0 15px;
    color: var(--light);
  }

  p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.9);
  }

  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin: 30px 0;
  }

  .image-card {
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

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

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

  .image-card:hover img {
    transform: scale(1.1);
  }

  pre {
    background: rgba(10, 26, 58, 0.8);
    border-radius: 8px;
    padding: 20px;
    margin: 25px 0;
    overflow-x: auto;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
    border-left: 4px solid var(--accent);
  }

  code {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: #f8f8f2;
  }

  .language-css {
    display: block;
    white-space: pre;
  }

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

  .button {
    display: inline-block;
    background: var(--accent);
    color: var(--light);
    padding: 12px 25px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 152, 0, 0.3);
  }

  .button:hover {
    background: #e68900;
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(255, 152, 0, 0.4);
  }

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

  .widget {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
  }

  .widget:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.15);
  }

  .card-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin: 40px 0;
  }

  .card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
  }

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

  .card-img {
    height: 200px;
    overflow: hidden;
  }

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

  .card:hover .card-img img {
    transform: scale(1.1);
  }

  .card-content {
    padding: 20px;
  }

  .card h4 {
    font-family: 'Roboto', sans-serif;
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--light);
  }

  .card p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
  }

  .community-module {
    position: fixed;
    bottom: -300px;
    left: 0;
    width: 100%;
    background: rgba(10, 26, 58, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px;
    box-shadow: 0 -5px 30px rgba(0, 0, 0, 0.3);
    transition: bottom 0.5s ease;
    z-index: 999;
    border-top: 2px solid var(--accent);
  }

  .community-module.active {
    bottom: 0;
  }

  .chat-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--accent);
    color: var(--light);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(255, 152, 0, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
    border: none;
  }

  .chat-button:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(255, 152, 0, 0.5);
  }

  .chat-button i {
    font-size: 1.5rem;
  }

  .footer {
    background: rgba(10, 26, 58, 0.9);
    padding: 40px 0;
    text-align: center;
    margin-top: 80px;
  }

  .footer p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
  }

  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @media (max-width: 768px) {
    .hero h1 {
      font-size: 2.5rem;
    }
    
    .nav-links {
      gap: 15px;
    }
    
    .content-section {
      padding: 30px;
    }
    
    .image-grid {
      grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
  }

  @media (max-width: 480px) {
    .hero h1 {
      font-size: 2rem;
    }
    
    .nav-container {
      flex-direction: column;
      gap: 15px;
    }
    
    .content-section {
      padding: 20px;
    }
    
    h2 {
      font-size: 1.8rem;
    }
    
    h3 {
      font-size: 1.4rem;
    }
  }