body {
    font-family: sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header, main, footer {
    padding: 1rem;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

header {
    text-align: center;
    border-bottom: 1px solid #ddd;
}

main {
    flex: 1;
}

footer {
    text-align: center;
    border-top: 1px solid #ddd;
    margin-top: auto;
    font-size: 0.9em;
}

a {
    color: #007BFF;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}