html { background: #000; color-scheme: dark; }
body { margin: 0; background: #000; }
main { min-height: 100vh; min-height: 100svh; display: grid; place-items: center; }
img { display: block; width: min(76vw, 480px); max-height: 82vh; max-height: 82svh; object-fit: contain; }