body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 1rem 0;
    text-align: center;
}

main {
    padding: 1rem;
}

section {
    margin-bottom: 2rem;
}

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

form {
    display: flex;
    flex-direction: column;
}

label, input, button {
    margin-bottom: 0.5rem;
}