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

header {
    background: #990000;
    color: #fff;
    padding: 20px;
    text-align: center;
}

nav ul {
    list-style: none;
    padding: 0;
    text-align: center;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

main {
    padding: 20px;
    max-width: 800px;
    margin: auto;
    background: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}

h2 {
    color: #990000;
}

footer {
    text-align: center;
    padding: 10px;
    background: #990000;
    color: #fff;
    margin-top: 20px;
}