:root { --bg: #f7f6f2; --fg: #1d1d1b; --muted: #6b6b66; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #151514; --fg: #ecebe6; --muted: #9a9a94; }
}
html, body { height: 100%; margin: 0; }
body {
  display: grid; place-items: center;
  background: var(--bg); color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { text-align: center; padding: 1rem; }
h1 { font-weight: 600; letter-spacing: 0.04em; margin: 0 0 0.5rem; }
p { color: var(--muted); margin: 0; }
a { color: inherit; }