:root {
  --bg: #f6f7f9;
  --text: #1c2430;
  --muted: #5b6676;
  --accent: #0b6e8a;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161c;
    --text: #e6ebf1;
    --muted: #9aa5b4;
    --accent: #4fb3cf;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 16px;
}

p { color: var(--muted); }