body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  margin: 2rem;
}

main {
  max-width: 42rem;
}

a {
  color: inherit;
}

.quiet {
  font-size: 0.9rem;
  opacity: 0.75;
}

.offline-nav {
  margin: 0 0 1rem 0;
}

.offline-nav div {
  margin-bottom: 0.5rem;
}

.controls {
  margin: 1rem 0;
}

.controls button {
  margin: 0 0.5rem 0.5rem 0;
}

#messages {
  background: #eee;
  padding: 1rem;
  overflow-x: auto;
  white-space: pre-wrap;
  min-height: 6rem;
}

progress {
  width: 100%;
  max-width: 42rem;
  height: 1.2rem;
  margin: 0.5rem 0 1rem 0;
}