:root {
    --primary: #1E90FF;
    --secondary: #8A2BE2;
    --accent: #32CD32;
    --highlight: #FFA500;
    --light: #C0C0C0;
    --dark: #121212;
    --text: #FFFFFF;
    --bg-gradient: linear-gradient(135deg, var(--primary), var(--secondary), var(--light));
  }

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

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

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

  header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
  }

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

  .logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
  }

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

  .nav-link {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    transition: all 0.3s ease;
  }

  .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 {
    min-height: 80vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    position: relative;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(30, 144, 255, 0.2), transparent 70%);
    z-index: -1;
  }

  .hero-content {
    max-width: 600px;
  }

  .hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
  }

  .hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
  }

  .hero-image {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    max-width: 600px;
    height: auto;
  }

  .hero-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    transform: perspective(1000px) rotateY(-20deg);
    transition: transform 0.5s ease;
  }

  .hero-image:hover img {
    transform: perspective(1000px) rotateY(0deg);
  }

  .section {
    padding: 80px 0;
    position: relative;
  }

  .section-title {
    font-size: 2.5rem;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
  }

  .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    border-radius: 3px;
  }

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

  .card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    border: 1px solid rgba(255,255,255,0.1);
  }

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

  .card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: white;
  }

  .card-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--accent);
  }

  .card-text {
    opacity: 0.8;
    margin-bottom: 20px;
  }

  .article-container {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 50px;
    margin: 50px 0;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  }

  article h2 {
    font-size: 2rem;
    margin: 40px 0 20px;
    color: var(--accent);
    position: relative;
    padding-left: 20px;
  }

  article h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 5px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
    border-radius: 5px;
  }

  article h3 {
    font-size: 1.5rem;
    margin: 30px 0 15px;
    color: var(--highlight);
  }

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

  table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: rgba(255,255,255,0.1);
    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(255,255,255,0.2);
    color: var(--highlight);
  }

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

  pre {
    background: rgba(0,0,0,0.5);
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    overflow-x: auto;
    border-left: 4px solid var(--accent);
  }

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

  .image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin: 40px 0;
  }

  .gallery-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
    position: relative;
  }

  .gallery-item:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 30px 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(1.1);
  }

  .gallery-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  }

  footer {
    background: rgba(0, 0, 0, 0.8);
    padding: 50px 0 20px;
    margin-top: 100px;
  }

  .footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
  }

  .footer-column h3 {
    color: var(--accent);
    margin-bottom: 20px;
    font-size: 1.2rem;
  }

  .footer-links {
    list-style: none;
  }

  .footer-link {
    color: var(--text);
    text-decoration: none;
    margin-bottom: 10px;
    display: block;
    opacity: 0.7;
    transition: all 0.3s ease;
  }

  .footer-link:hover {
    opacity: 1;
    color: var(--highlight);
    padding-left: 5px;
  }

  .copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    opacity: 0.7;
  }

  .reference {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: rgba(0,0,0,0.7);
    padding: 10px 15px;
    border-radius: 50px;
    font-size: 0.8rem;
    backdrop-filter: blur(10px);
    z-index: 1000;
  }

  @media (max-width: 992px) {
    .hero {
      flex-direction: column;
      text-align: center;
      padding-top: 150px;
    }

    .hero-content {
      max-width: 100%;
      margin-bottom: 50px;
    }

    .hero-image {
      position: relative;
      width: 100%;
      transform: none;
      right: auto;
      top: auto;
    }

    .hero-title {
      font-size: 2.5rem;
    }
  }

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

    .section-title {
      font-size: 2rem;
    }

    article h2 {
      font-size: 1.8rem;
    }

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

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

  @keyframes pulse {
    0%, 100% {
      opacity: 0.5;
    }
    50% {
      opacity: 1;
    }
  }

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

  .pulse {
    animation: pulse 2s ease-in-out infinite;
  }

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

  .particle {
    position: absolute;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0;
    animation: particle-animation linear infinite;
  }

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