body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #333;
}

header {
    background: #005a9e;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
}

header h1 {
    margin: 0;
}

nav {
    margin-top: 1rem;
}

nav a {
    color: #fff;
    text-decoration: none;
    padding: 0.5rem 1rem;
}

nav a:hover {
    background: #0078d4;
}

main {
    padding: 1rem;
}

section {
    background: #fff;
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 8px;
}

h2 {
    color: #005a9e;
}

footer {
    text-align: center;
    padding: 1rem 0;
    background: #333;
    color: #fff;
}