body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #fefefe;
    color: #222;
}

header {
    background-color: #0a1e3d;
    color: white;
    padding: 1em;
    text-align: center;
}

nav a {
    color: white;
    margin: 0 1em;
    text-decoration: none;
}

.hero, .product {
    padding: 2em;
    text-align: center;
}

.cta {
    display: inline-block;
    background: #f5a623;
    color: white;
    padding: 1em 2em;
    text-decoration: none;
    margin-top: 1em;
    font-weight: bold;
}