:root {
  --bg: #ffffff;
  --fg: #111111;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0f12;
    --fg: #f2f2f2;
  }
}

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

main {
  padding: 16px;
  text-align: center;
}