:root {
    --primary: #1e3c72;
    --secondary: #2a5298;
    --accent: #ffa500;
    --highlight: #00ff7f;
    --text: #ffffff;
    --bg-dark: #0a192f;
    --bg-light: rgba(255,255,255,0.1);
  }

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

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

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

  .notice {
    background: rgba(0,0,0,0.5);
    padding: 15px;
    text-align: center;
    margin: 20px 0;
    border-radius: 8px;
    border-left: 4px solid var(--accent);
  }

  header {
    padding: 100px 0 50px;
    text-align: center;
    position: relative;
  }

  header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--highlight), transparent);
  }

  h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 20px;
  }

  h1 {
    font-size: 2.5rem;
    background: linear-gradient(90deg, var(--text), var(--highlight));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
  }

  h2 {
    font-size: 1.8rem;
    color: var(--highlight);
    position: relative;
    padding-bottom: 10px;
    margin-top: 40px;
  }

  h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent);
  }

  h3 {
    font-size: 1.4rem;
    color: var(--text);
    margin-top: 30px;
  }

  p {
    margin: 15px 0;
    font-size: 1.1rem;
  }

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

  .grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 30px;
    margin: 40px 0;
  }

  .grid-item {
    background: var(--bg-light);
    border-radius: 15px;
    padding: 25px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255,255,255,0.1);
  }

  .grid-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
  }

  .image-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 30px 0;
    justify-content: center;
  }

  .decorative-img {
    width: 150px;
    height: 150px;
    border-radius: 15px;
    object-fit: cover;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
  }

  .decorative-img:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0,0,0,0.4);
  }

  pre {
    background: var(--bg-dark);
    padding: 20px;
    border-radius: 10px;
    overflow: auto;
    margin: 20px 0;
    border-left: 4px solid var(--highlight);
    font-family: 'Courier New', monospace;
  }

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

  .nav-links {
    display: flex;
    justify-content: center;
    margin: 40px 0;
    flex-wrap: wrap;
    gap: 15px;
  }

  .nav-link {
    padding: 10px 20px;
    background: var(--bg-light);
    border-radius: 30px;
    text-decoration: none;
    color: var(--text);
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.1);
  }

  .nav-link:hover {
    background: var(--highlight);
    color: var(--bg-dark);
    transform: translateY(-3px);
  }

  @media (max-width: 768px) {
    .grid-container {
      grid-template-columns: 1fr;
    }
    
    h1 {
      font-size: 2rem;
    }
    
    h2 {
      font-size: 1.5rem;
    }
  }

  /* Animations */
  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
  }

  .floating {
    animation: float 3s ease-in-out infinite;
  }

  /* Decorative elements */
  .circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(0,255,127,0.1);
    z-index: -1;
  }

  .circle-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 5%;
    filter: blur(30px);
  }

  .circle-2 {
    width: 200px;
    height: 200px;
    bottom: 15%;
    right: 5%;
    filter: blur(20px);
  }