body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background: #0073e6;
    color: #fff;
    text-align: center;
    padding: 2rem 0;
}

header h1 {
    margin: 0;
}

main {
    padding: 1rem 2rem;
    max-width: 800px;
    margin: auto;
    background: whitesmoke;
}

section {
    margin-bottom: 2rem;
}

footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 0.7rem 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}