:root {
  color-scheme: light dark;
  --fg: #1b1f24;
  --bg: #ffffff;
  --muted: #5a6470;
  --accent: #0b5cad;
}
@media (prefers-color-scheme: dark) {
  :root { --fg: #e6e9ee; --bg: #14181d; --muted: #9aa5b1; --accent: #6db3ff; }
}
html { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--fg); }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 16px; }
main { max-width: 40rem; }
h1 { font-size: 2rem; margin: 0 0 0.5rem; }
p { line-height: 1.5; }
.meta { color: var(--muted); font-size: 0.9rem; }
a { color: var(--accent); }
code { font-family: ui-monospace, Menlo, Consolas, monospace; }