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

header, footer {
    background-color: #222;
    color: #fff;
    padding: 10px 20px;
}

header h1 {
    margin: 0;
}

nav a {
    color: #fff;
    margin-right: 15px;
    text-decoration: none;
}

nav a:hover {
    text-decoration: underline;
}

main {
    padding: 20px;
    max-width: 800px;
    margin: auto;
    background-color: #fff;
}

form {
    display: flex;
    flex-direction: column;
    max-width: 400px;
}

label {
    margin-top: 10px;
}
input {
    padding: 8px;
    margin-top: 5px;
}
button {
    margin-top: 15px;
    padding: 10px;
    background-color: #222;
    color: #fff;
    border: none;
    cursor: pointer;
}
button:hover {
    background-color: #555;
}