body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: #f9f9f9;
    color: #333;
}

header {
    background: #007ACC;
    color: #fff;
    padding: 2rem;
    text-align: center;
}

header a {
    color: #fff;
    text-decoration: underline;
}

main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
    background: #fff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    border-radius: 8px;
}

h1, h2 {
    margin-top: 0;
}

section {
    margin-bottom: 1.5rem;
}

footer {
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
    color: #555;
}