body {
            font-family: sans-serif;
            font-weight: 500;
            font-size: 20px;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            background-color: #f4f4f4;
        }
        @media (max-width: 768px) {
  body {
    font-size: 14px;
  }
}

        header {
            background-color: #3F69AA;
            color: white;
            padding: 15px;
            text-align: center;
            font-size: 15px;
            width: 100%;
        }



        footer {
            background-color: #3F69AA;
            color: white;
            padding: 10px;
            text-align: center;
            width: 100%;
            margin-top: auto;
        }