:root { color-scheme: light dark; }
body {
  margin: 0;
  font: 16px/1.5 system-ui, sans-serif;
}
main {
  max-width: 46rem;
  margin: 0 auto;
  padding: 1rem;
}
h1 { font-size: 1.6rem; margin: 0.5rem 0 1rem; }
h1 small { font-size: 1rem; font-weight: normal; opacity: 0.75; }
h2 { font-size: 1.15rem; margin: 0 0 0.5rem; }
fieldset {
  margin: 1rem 0;
  padding: 0.5rem 1rem 0.75rem;
  border: 1px solid #8886;
  border-radius: 0.4rem;
}
.choice { padding: 0.15rem 0; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; }
.row label { min-width: 7rem; }
#arguments .row { margin-top: 0.6rem; }
input[type="text"], input[type="number"] {
  font: inherit;
  font-family: ui-monospace, monospace;
  padding: 0.3rem 0.5rem;
  border: 1px solid #8889;
  border-radius: 0.3rem;
  background: transparent;
  color: inherit;
}
input[type="text"] { flex: 1 1 14rem; min-width: 0; }
input[type="number"] { width: 7rem; }
button {
  font: inherit;
  padding: 0.5rem 1.4rem;
  border: 0;
  border-radius: 0.4rem;
  background: #2563eb;
  color: #fff;
  cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: progress; }
#status { margin-left: 0.8rem; opacity: 0.8; }
#result {
  margin: 1.25rem 0;
  padding: 0.75rem 1rem;
  border: 1px solid #8886;
  border-radius: 0.4rem;
}
#result:empty { display: none; }
#again { margin: 0 0 0.6rem; }
dl { margin: 0; }
dt { font-size: 0.85rem; opacity: 0.75; }
dd {
  margin: 0 0 0.6rem;
  font-family: ui-monospace, monospace;
  font-size: 1.05rem;
  overflow-wrap: anywhere;
}
code { font-family: ui-monospace, monospace; overflow-wrap: anywhere; }
.hint { font-size: 0.88rem; opacity: 0.85; margin: 0.6rem 0 0; }
.error { color: #c0262d; font-weight: 600; overflow-wrap: anywhere; }
.note { margin: 0 0 0.6rem; overflow-wrap: anywhere; }
footer { margin-top: 2rem; font-size: 0.85rem; opacity: 0.85; }
a { color: #2563eb; }
@media (prefers-color-scheme: dark) {
  a { color: #7aa7ff; }
  .error { color: #ff7b7b; }
}