:root {
  color-scheme: light dark;
  font-family: ui-sans-serif, system-ui, sans-serif;
}

body {
  margin: 0;
  padding: 2rem 1rem 4rem;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  display: grid;
  gap: 1.5rem;
}

.lede,
.hint {
  color: #555;
  line-height: 1.4;
}

@media (prefers-color-scheme: dark) {
  .lede,
  .hint {
    color: #c8c8c8;
  }
}

label {
  display: grid;
  gap: 0.35rem;
  margin: 0.75rem 0;
}

input,
select,
button,
pre {
  font: inherit;
}

input,
select {
  padding: 0.45rem 0.6rem;
}

.row {
  display: flex;
  gap: 0.75rem;
}

button {
  padding: 0.45rem 0.8rem;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

pre {
  overflow: auto;
  padding: 0.75rem;
  border: 1px solid #ccc;
}