body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: #333;
}
header {
    background-color: #004080;
    padding: 1em;
}
nav a {
    color: white;
    margin: 0 1em;
    text-decoration: none;
    font-weight: bold;
}
nav a:hover {
    color: #ff9900;
}
main {
    padding: 2em;
}
h1, h2 {
    color: #004080;
}
footer {
    background-color: #004080;
    color: white;
    text-align: center;
    padding: 1em;
    margin-top: 2em;
}
a {
    color: #ff9900;
}
a:hover {
    text-decoration: underline;
}
article {
    max-width: 700px;
    margin: auto;
    line-height: 1.6;
}