body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
    color: #111;
    line-height: 1.7;
    background: #fff;
}

.hero {
    padding: 100px 20px 40px;
    text-align: center;
}

    .hero h1 {
        font-size: 2.5rem;
        margin-bottom: 10px;
    }

.hero-sub {
    color: #666;
}

.nav {
    text-align: center;
    margin-bottom: 80px;
}

    .nav a {
        margin: 0 15px;
        text-decoration: none;
        color: #111;
    }

main {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    margin-bottom: 90px;
}

h2 {
    font-size: 1.4rem;
    margin-bottom: 30px;
}

.item {
    margin-bottom: 35px;
}

    .item h3 {
        margin-bottom: 5px;
        font-size: 1.1rem;
    }

a {
    color: #111;
}

footer {
    text-align: center;
    padding: 40px;
    color: #999;
}