:root {
  --bg: #faf8f5;
  --text: #1e1b18;
  --muted: #6b645c;
  --rule: #e4ded6;
  --link: #8a4b1f;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1816;
    --text: #f2ede6;
    --muted: #a39a90;
    --rule: #3a3530;
    --link: #e0a272;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 4rem;
}

h1 { font-size: 1.75rem; line-height: 1.3; margin: 0 0 .25rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 .5rem; }
h3 { font-size: 1rem; margin: 1.5rem 0 .25rem; }
p, ul, ol { margin: .5rem 0; }
li { margin: .25rem 0; }
a { color: var(--link); }

.meta { color: var(--muted); font-size: .9rem; margin: 0 0 1.5rem; }
.summary { padding: .75rem 1rem; border-left: 3px solid var(--link); background: color-mix(in srgb, var(--link) 8%, transparent); }

hr { border: 0; border-top: 1px solid var(--rule); margin: 3.5rem 0; }