body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: #333;
    color: white;
    padding: 1rem;
    text-align: center;
}

header nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

header nav ul li {
    display: inline;
    margin: 0 1rem;
}

header nav ul li a {
    color: white;
    text-decoration: none;
}

main {
    flex: 1;
    padding: 2rem;
}

section {
    padding: 2rem 0;
}

h1, h2 {
    color: #333;
}

footer {
    background-color: #333;
    color: white;
    padding: 1rem;
    text-align: center;
}

a {
    color: #0066cc;
}

a:hover {
    text-decoration: underline;
}