/* One stylesheet, no build step, no external requests. Cloudflare Pages serves
   this directory exactly as it is. */

:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #16181d;
  --muted: #5c6370;
  --rule: #e3e6ea;
  --link: #1b64d1;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --fg: #e8eaed;
    --muted: #9aa1ac;
    --rule: #262a31;
    --link: #6fa8ff;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  padding: 3rem 1.25rem 5rem;
  max-width: 42rem;
  background: var(--bg);
  color: var(--fg);
  font: 1rem/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

a { color: var(--link); }

header { margin-bottom: 2.5rem; }

.mark {
  font-weight: 650;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--fg);
}

h1 {
  font-size: 1.65rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  margin: 2.25rem 0 0.6rem;
}

.updated {
  color: var(--muted);
  font-size: 0.875rem;
  margin: 0 0 2rem;
}

ul { padding-left: 1.15rem; }
li { margin: 0.35rem 0; }

.lede { font-size: 1.05rem; }

.callout {
  border-left: 3px solid var(--rule);
  padding: 0.15rem 0 0.15rem 1rem;
  margin: 1.5rem 0;
  color: var(--muted);
}

footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.875rem;
}

footer a { margin-right: 1rem; }

.cta {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: 8px;
  background: var(--link);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}