body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 20px;
    background-color: #f8f9fa;
    color: #333;
}

h1 {
    font-size: 2.5em;
    color: #007bff;
    margin-bottom: 10px;
}

h2 {
    font-size: 2em;
    color: #0056b3;
    margin-top: 20px;
    margin-bottom: 10px;
}

h3 {
    font-size: 1.75em;
    color: #004085;
    margin-top: 15px;
    margin-bottom: 10px;
}

h4 {
    font-size: 1.5em;
    color: #343a40;
    margin-top: 15px;
    margin-bottom: 10px;
}

p {
    margin-bottom: 15px;
}

ul {
    margin-left: 20px;
    list-style-type: disc;
}

a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

strong {
    color: #343a40;
}

footer {
    margin-top: 30px;
    font-size: 0.9em;
    color: #6c757d;
}