:root {
  color-scheme: dark;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  background: #000;
}

.viewport {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.hero {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}