:root { --bg: #ffffff; --fg: #231f20; --muted: #6b6768; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #111010; --fg: #f2f0f0; --muted: #9a9696; }
  .logo { filter: invert(1); }
}
* { box-sizing: border-box; margin: 0; }
html, body { height: 100%; }
body {
  background: var(--bg); color: var(--fg);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: grid; place-items: center; padding: 16px;
}
main { text-align: center; }
.logo { width: min(320px, 70vw); height: auto; display: block; margin: 0 auto 20px; }
p { color: var(--muted); letter-spacing: .08em; text-transform: uppercase; font-size: 12px; }