:root{color-scheme:light dark;font-family:system-ui,sans-serif;--ui-top:calc(env(safe-area-inset-top, 0px) + 2.75rem)}body{max-width:720px;margin:2rem auto;padding:0 1rem}label{display:block;margin:1rem 0}button,input{padding:.6rem;font:inherit}input{display:block;width:8rem;margin-top:.4rem}#arStatus{min-height:1.5em}