:root {
  --bg: #000;
  --fg: #fff;
}
html,
body {
  height: 100%;
  margin: 0;
}
body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial;
}
h1 {
  margin: 1rem;
}
main {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
.logo {
  width: clamp(160px, 20vw, 240px);
  height: auto;
}