:root{color:#111827;background:#f9fafb;font-family:system-ui,sans-serif}body{margin:0}.app{max-width:40rem;margin:3rem auto;padding:0 1rem}.app__header{align-items:center;gap:1rem;display:flex}.app__info{grid-template-columns:max-content 1fr;gap:.25rem 1rem;display:grid}.app__info dt{font-weight:600}.app__info dd{margin:0}button{font:inherit;cursor:pointer;padding:.5rem 1rem}.app__result pre{background:#e5e7eb;padding:1rem;overflow-x:auto}.app__error{color:#b91c1c}