<style>
body {
    margin: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

header {
    background: #0d42ba;
    color: white;
    padding: 20px;
}

nav a {
    color: white;
    text-decoration: none;
    margin-right: 15px;
}

.hero {
    background: #eef2ff;
    padding: 40px;
}

main {
    max-width: 900px;
    margin: auto;
    padding: 20px;
}

footer {
    text-align: center;
    padding: 20px;
    background: #f4f4f4;
}
</style>
