:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #5c5c5c;
  --border: #e4e4e4;
  --link: #0b5cd5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --fg: #fafafa;
    --muted: #a1a1a1;
    --border: #272727;
    --link: #7aa9f7;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0 auto;
  padding: 3rem 1.25rem 6rem;
  max-width: 44rem;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}
header { border-bottom: 1px solid var(--border); padding-bottom: 1.5rem; margin-bottom: 2.5rem; }
h1 { font-size: 1.75rem; line-height: 1.25; margin: 0 0 .4rem; letter-spacing: -0.02em; }
h2 { font-size: 1.15rem; margin: 2.5rem 0 .75rem; letter-spacing: -0.01em; }
h3 { font-size: 1rem; margin: 1.75rem 0 .5rem; }
p, li { color: var(--fg); }
.sub, footer { color: var(--muted); font-size: .9rem; }
a { color: var(--link); }
ul { padding-left: 1.25rem; }
li { margin: .4rem 0; }
table { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: .93rem; display: block; overflow-x: auto; }
th, td { text-align: left; padding: .6rem .75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-weight: 600; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; }
footer { border-top: 1px solid var(--border); margin-top: 3.5rem; padding-top: 1.5rem; }
nav a { margin-right: 1.25rem; }