:root {
    --primary: #2E4053;
    --secondary: #ECF0F1;
    --accent: #FFC300;
    --highlight: #27AE60;
    --text: #333;
    --light: rgba(255,255,255,0.8);
    --dark: rgba(0,0,0,0.1);
  }

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

  body {
    font-family: 'Open Sans', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: linear-gradient(135deg, var(--secondary) 0%, #D5DBDB 100%);
    padding: 0;
    margin: 0;
    min-height: 100%;
  }

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

  .header {
    background: linear-gradient(135deg, rgba(46,64,83,0.9) 0%, rgba(46,64,83,0.7) 100%);
    backdrop-filter: blur(10px);
    padding: 2rem;
    text-align: center;
    border-radius: 0 0 20px 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    margin-bottom: 3rem;
    color: white;
  }

  .header h1 {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
  }

  .header p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
  }

  .notice {
    background: var(--accent);
    color: var(--primary);
    padding: 1rem;
    text-align: center;
    font-weight: bold;
    border-radius: 8px;
    margin: 2rem 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  }

  article {
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    margin-bottom: 3rem;
  }

  article h2 {
    color: var(--primary);
    font-size: 2rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 0.5rem;
  }

  article h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--highlight));
    border-radius: 2px;
  }

  article h3 {
    color: var(--primary);
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    font-weight: 600;
  }

  article p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
  }

  article strong {
    color: var(--primary);
    font-weight: 600;
  }

  pre {
    background: rgba(46,64,83,0.9);
    color: white;
    padding: 1.5rem;
    border-radius: 10px;
    overflow-x: auto;
    margin: 2rem 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.5;
  }

  code {
    font-family: 'Courier New', monospace;
    background: rgba(46,64,83,0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    color: var(--primary);
  }

  .gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
  }

  .gallery img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .gallery img:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
  }

  .nav-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0;
  }

  .nav-link {
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    border-radius: 50px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  }

  .nav-link:hover {
    background: var(--accent);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
  }

  .footer {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(46,64,83,0.9) 0%, rgba(46,64,83,0.7) 100%);
    backdrop-filter: blur(10px);
    color: white;
    border-radius: 20px 20px 0 0;
    margin-top: 3rem;
  }

  @media (max-width: 768px) {
    .container {
      padding: 15px;
    }
    
    article {
      padding: 2rem;
    }
    
    .header h1 {
      font-size: 2rem;
    }
    
    .gallery {
      grid-template-columns: 1fr;
    }
  }

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

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