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

header {
    background-color: #333;
    color: white;
    padding: 10px 0;
}

header nav ul {
    list-style: none;
    text-align: center;
    padding: 0;
}

header nav ul li {
    display: inline;
    margin-right: 20px;
}

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

main {
    padding: 20px;
    text-align: center;
}

footer {
    background-color: #333;
    color: white;
    padding: 10px 0;
    text-align: center;
}

ul {
    list-style: none;
}

form {
    text-align: left;
    margin-top: 20px;
    display: inline-block;
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

form input, form textarea {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
    border: 1px solid #ccc;
}

form input[type="submit"] {
    background-color: #333;
    color: white;
    border: none;
    cursor: pointer;
}