html,
body {
    margin: 0;
    min-height: 100%;
    background: #000;
}

body {
    min-height: 100vh;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    box-sizing: border-box;
}

.hero-logo {
    display: block;
    width: min(90vw, 1200px);
    height: auto;
}