body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

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

nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    background-color: #555;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    padding: 1rem;
    display: block;
}

nav ul li a:hover {
    background-color: #444;
}

main {
    padding: 1rem;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem;
    position: fixed;
    bottom: 0;
    width: 100%;
}

#admin-content input, #admin-content textarea {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
    padding: 0.5rem;
}

#admin-content button {
    padding: 0.5rem 1rem;
    background-color: #333;
    color: #fff;
    border: none;
    cursor: pointer;
}

#admin-content button:hover {
    background-color: #555;
}