/* Загальні налаштування */
body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background: #f4f8fb;
    color: #222;
    line-height: 1.6;
  }
  
  header {
    background: linear-gradient(to right top, #e0f7ff, #b2e0f9, #84c9f2, #57b1ec, #2a99e6);
    color: #fff;
    text-align: center;
    padding: 40px 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  }
  
  header h1 {
    margin: 0;
    font-size: 2.2rem;
  }
  
  header p {
    font-size: 1.2rem;
    margin-top: 10px;
  }
  
  section {
    background: #ffffff;
    margin: 30px auto;
    max-width: 900px;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.06);
  }
  
  section h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #2a99e6;
  }
  
  section p, section li {
    font-size: 1.1rem;
  }
  
  section ul {
    padding-left: 20px;
  }
  
  a {
    color: #2a99e6;
    text-decoration: none;
  }
  
  a:hover {
    text-decoration: underline;
  }
  
  iframe {
    border-radius: 10px;
    margin-top: 15px;
  }
  
  /* Footer */
  footer {
    background: #222;
    color: #fff;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    font-size: 0.95rem;
  }
  
  /* Адаптив */
  @media (max-width: 600px) {
    header h1 {
      font-size: 1.6rem;
    }
  
    section {
      padding: 20px;
    }
  
    section h2 {
      font-size: 1.5rem;
    }
  }