:root {
  color-scheme: light dark;
  --bg: #f7f7f5;
  --fg: #1c1c1a;
  --muted: #55554f;
  --link: #0a5f38;
  --border: #d8d8d2;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16171a;
    --fg: #eceae4;
    --muted: #a9a8a0;
    --link: #7fd8a8;
    --border: #333438;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
  line-height: 1.5;
}

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

h1 { font-size: 1.5rem; }

h2 {
  font-size: 1.1rem;
  margin-top: 2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.25rem;
}

.muted { color: var(--muted); font-size: 0.9rem; }
a { color: var(--link); }
.platzhalter { color: var(--link); font-family: ui-monospace, Menlo, monospace; }