:root {
  color-scheme: light dark;
  --tint: #A44900;
  --fill: #F7931A;
  --bg: #ffffff;
  --fg: #1c1c1e;
  --muted: #6b6b70;
  --rule: #e5e5ea;
}
@media (prefers-color-scheme: dark) {
  :root {
    --tint: #F7931A;
    --bg: #000000;
    --fg: #f2f2f7;
    --muted: #9b9ba1;
    --rule: #2c2c2e;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  padding: 2.5rem 1.25rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font: 400 17px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 34rem; margin: 0 auto; }
h1 { font-size: 1.6rem; line-height: 1.25; margin: 0 0 0.25rem; letter-spacing: -0.01em; }
.mark {
  display: inline-block;
  width: 0.7em; height: 0.7em;
  border-radius: 0.2em;
  background: var(--fill);
  margin-right: 0.45em;
  vertical-align: 0.04em;
}
p { margin: 0 0 1rem; }
.lead { font-size: 1.05rem; }
.muted { color: var(--muted); }
hr { border: 0; border-top: 1px solid var(--rule); margin: 1.75rem 0; }
.bg { color: var(--fg); }
a { color: var(--tint); }
footer { margin-top: 2rem; font-size: 0.85rem; color: var(--muted); }
nav a { margin-right: 1rem; }