body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header, footer {
    background-color: #444;
    color: #fff;
    text-align: center;
    padding: 20px 0;
}

header h1 {
    margin: 0;
}

main {
    flex: 1;
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

section {
    margin-bottom: 20px;
}

h2 {
    color: #555;
}

footer {
    margin-top: auto;
}

footer p {
    margin: 0;
}