* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f9f9f9;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
  }

  
  
  /* ===== GLOBAL CONTAINER ===== */
  .page-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 16px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  /* ===== HEADER ===== */
  .header {
    background: linear-gradient(135deg, #2d5f8d 0%, #1f4562 100%);
    color: white;
    padding: 40px 24px 32px;
    text-align: center;
    margin: 0 -16px 32px;
  }
  
  .header__title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
  }
  
  .header__subtitle {
    font-size: 14px;
    opacity: 0.95;
  }
  
  .header__nav {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
  }
  
  .header__nav-link {
    display: inline-block;
    color: white;
    text-decoration: none;
    margin: 0 12px;
    font-size: 13px;
    opacity: 0.9;
    transition: opacity 0.2s ease;
  }
  
  .header__nav-link:hover {
    opacity: 1;
    text-decoration: underline;
  }
  
  .header__back-link {
    display: inline-block;
    color: white;
    text-decoration: none;
    margin: 0 12px;
    font-size: 13px;
    opacity: 0.9;
    transition: opacity 0.2s ease;
  }
  
  .header__back-link:hover {
    opacity: 1;
    text-decoration: underline;
  }
  
  /* ===== MAIN CONTENT ===== */
  .page-content {
    flex: 1;
    background: white;
    padding: 32px 24px;
    border-radius: 8px;
    margin-bottom: 32px;
    border: 1px solid #e0e0e0;
  }
  
  .page-content h1 {
    font-size: 28px;
    color: #2d5f8d;
    margin-bottom: 24px;
    border-bottom: 2px solid #2d5f8d;
    padding-bottom: 16px;
  }
  
  .page-content h2 {
    font-size: 20px;
    color: #2d5f8d;
    margin-top: 28px;
    margin-bottom: 16px;
  }
  
  .page-content h3 {
    font-size: 16px;
    color: #1f4562;
    margin-top: 20px;
    margin-bottom: 12px;
  }
  
  .page-content p {
    margin-bottom: 16px;
    line-height: 1.8;
    color: #555;
  }
  
  .page-content ul {
    margin-left: 24px;
    margin-bottom: 16px;
  }
  
  .page-content li {
    margin-bottom: 10px;
    color: #555;
    line-height: 1.8;
  }
  
  .page-content ol {
    margin-left: 24px;
    margin-bottom: 16px;
  }
  
  .page-content strong {
    color: #2d5f8d;
    font-weight: 600;
  }
  
  .page-content a {
    color: #2d5f8d;
    text-decoration: none;
    transition: color 0.2s ease;
  }
  
  .page-content a:hover {
    color: #1f4562;
    text-decoration: underline;
  }
  
  .page-content blockquote {
    border-left: 4px solid #2d5f8d;
    padding-left: 16px;
    margin: 20px 0;
    color: #666;
    font-style: italic;
  }
  
  /* ===== BUTTONS ===== */
  .btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    text-decoration: none;
    display: inline-block;
  }
  
  .btn--primary {
    background: #2d5f8d;
    color: white;
  }
  
  .btn--primary:hover {
    background: #1f4562;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(45, 95, 141, 0.25);
  }
  
  .btn--secondary {
    background: #f5f5f5;
    color: #333;
    border: 1px solid #ddd;
  }
  
  .btn--secondary:hover {
    background: #efefef;
  }
  
  /* ===== FOOTER ===== */
  .footer {
    background: #f9f9f9;
    border-top: 1px solid #e0e0e0;
    padding: 32px 16px;
    text-align: center;
    margin-top: auto;
  }
  
  .footer__content {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .footer__nav {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 16px;
  }
  
  .footer__link {
    font-size: 13px;
    color: #2d5f8d;
    text-decoration: none;
    cursor: pointer;
    transition: color 0.2s ease;
  }
  
  .footer__link:hover {
    color: #1f4562;
    text-decoration: underline;
  }
  
  .footer__copyright {
    font-size: 12px;
    color: #999;
  }
  
  /* ===== RESPONSIVE ===== */
  @media (max-width: 600px) {
    .header {
      padding: 30px 20px 24px;
    }
  
    .header__title {
      font-size: 24px;
    }
  
    .header__subtitle {
      font-size: 13px;
    }
  
    .header__nav {
      margin-top: 16px;
      padding-top: 16px;
    }
  
    .header__nav-link,
    .header__back-link {
      display: block;
      margin: 8px 0;
    }
  
    .page-content {
      padding: 24px 16px;
      margin-bottom: 24px;
    }
  
    .page-content h1 {
      font-size: 22px;
      margin-bottom: 16px;
    }
  
    .page-content h2 {
      font-size: 18px;
      margin-top: 20px;
    }
  
    .page-content h3 {
      font-size: 15px;
    }
  
    .page-content ul,
    .page-content ol {
      margin-left: 20px;
    }
  
    .footer__nav {
      gap: 12px;
    }
  
    .footer__link {
      font-size: 12px;
    }
  }
  
  /* ===== UTILITY CLASSES ===== */
  .text-center {
    text-align: center;
  }
  
  .text-right {
    text-align: right;
  }
  
  .mt-20 {
    margin-top: 20px;
  }
  
  .mb-20 {
    margin-bottom: 20px;
  }
  
  .p-20 {
    padding: 20px;
  }
  
  .highlight {
    background: #f0f5f9;
    padding: 16px;
    border-radius: 6px;
    border-left: 4px solid #2d5f8d;
    margin: 20px 0;
  }
  
  .highlight p {
    margin: 0;
  }