:root {
  color-scheme: light dark;
  --fg: #1a1a1a;
  --bg: #fafafa;
  --accent: #2f6feb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e8e8e8;
    --bg: #14161a;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, sans-serif;
}

main {
  max-width: 32rem;
  padding: 2rem;
}

h1 {
  color: var(--accent);
}

code {
  font-family: ui-monospace, monospace;
  background: rgba(127, 127, 127, 0.15);
  padding: 0.1em 0.35em;
  border-radius: 0.25em;
}

.hint {
  opacity: 0.75;
  font-size: 0.9em;
}

#checks {
  padding-left: 1.2em;
}

#checks li::marker {
  content: attr(data-marker) " ";
}