body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}

header {
    background-color: #005f73;
    color: white;
    padding: 1rem;
    text-align: center;
}

main {
    padding: 2rem;
    text-align: center;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    margin: 0.5rem 0;
}

a {
    color: #005f73;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}