html,
body {
    margin: 0;
    padding: 0;
    background: #000;
    display: flex;
    min-height: 100vh;
    justify-content: center;
    align-items: center;
}

    body {
        font-family: 'Helvetica Neue', Arial, sans-serif;
        font-size: 19px;
        text-align: center;
        color: #fff;
    }

p,
h1,
h2 {
    margin: 1em 0;
}

main {
    padding: 1.2em;
}

.site-name {
    display: block;
    margin: 0 auto 0.6em auto;
    width: 250px;
    height: 79px;
    border: 0;
    overflow: hidden;
    text-indent: 105%;
    white-space: nowrap;
    background: transparent url('/img/logo.svg') no-repeat 50% 50%;
    background-size: 250px 79px;
}

.site-nav {
}

    .site-nav__title {
        font-size: 1em;
        font-weight: normal;
        margin-bottom: 0.3em;
    }
    
    .nav-items {
        margin: 0 auto;
        padding: 0;
        display: flex;
        justify-content: center;
        align-items: center;
        list-style: none;
        max-width: 32em;
        flex-wrap: wrap;
    }
    
        .nav-item {
            margin: 0 0.3em;
        }
    
            .nav-link {
                display: block;
                color: #fff;
                padding: 0.9em 0.9em;
                text-decoration: none;
                transition: border-bottom-color 0.3s;
                border-bottom: 2px solid transparent;
                font-weight: bold;
                white-space: nowrap;
            }
                .nav-link:hover,
                .nav-link:focus {
                    border-bottom-color: #fff;
                }
                .nav-link:active {
                    border-bottom-color: #fec904;
                }