:root { color-scheme: light dark; --fg:#1c1e21; --muted:#6b7280; --bg:#fff; }
@media (prefers-color-scheme: dark) {
  :root { --fg:#e5e7eb; --muted:#9ca3af; --bg:#111315; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  display: flex; min-height: 100vh; align-items: center; justify-content: center;
}
main { max-width: 34rem; padding: 2rem; }
h1 { font-size: 1.25rem; font-weight: 600; margin: 0 0 1rem; letter-spacing: -0.01em; }
p { margin: 0 0 0.85rem; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; }
.muted { color: var(--muted); font-size: 0.9rem; }
footer { margin-top: 2rem; }