:root {
  --ink: #1c1b19;
  --dim: #5f5b54;
  --rule: #e2ded6;
  --paper: #faf8f4;
  --link: #8a5a2b;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #ece7de;
    --dim: #9d968a;
    --rule: #34312c;
    --paper: #171614;
    --link: #d9a66a;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0 auto;
  padding: 3rem 1.5rem 6rem;
  max-width: 42rem;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}
h1 { font-size: 1.9rem; line-height: 1.2; margin: 0 0 .4rem; letter-spacing: -.02em; }
h2 { font-size: 1.15rem; margin: 2.6rem 0 .6rem; letter-spacing: -.01em; }
.sub { color: var(--dim); margin: 0 0 2.5rem; font-size: .95rem; }
p, li { color: var(--ink); }
ul { padding-left: 1.2rem; }
li { margin: .35rem 0; }
a { color: var(--link); text-underline-offset: 2px; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 3rem 0 1.5rem; }
footer { color: var(--dim); font-size: .9rem; }
.lede { font-size: 1.05rem; }
code { font-size: .9em; background: var(--rule); padding: .1em .35em; border-radius: 3px; }