:root {
  --ink: #1c1e21;
  --muted: #5c6670;
  --line: #e2e6ea;
  --bg: #ffffff;
  --accent: #0b6b57;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
header.site, footer.site {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1.25rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.25rem;
  align-items: baseline;
  justify-content: space-between;
}
header.site { border-bottom: 1px solid var(--line); }
footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.brand { font-weight: 700; text-decoration: none; color: var(--ink); letter-spacing: -.01em; }
nav a { color: var(--muted); text-decoration: none; margin-right: 1rem; }
nav a:hover { color: var(--accent); text-decoration: underline; }
main { max-width: 44rem; margin: 0 auto; padding: 2rem 1.25rem 3rem; }
h1 { font-size: 1.9rem; line-height: 1.25; letter-spacing: -.02em; margin: 0 0 .35rem; }
h2 { font-size: 1.25rem; margin: 2rem 0 .5rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 .4rem; }
p, ul, ol { margin: 0 0 1.1rem; }
li { margin-bottom: .4rem; }
.meta { color: var(--muted); font-size: .9rem; margin-bottom: 1.75rem; }
a { color: var(--accent); }
.lede { font-size: 1.05rem; color: #333; }
ul.cards { list-style: none; padding: 0; }
ul.cards li { border-bottom: 1px solid var(--line); padding: 1rem 0; margin: 0; }
ul.cards a { font-weight: 600; text-decoration: none; }
ul.cards a:hover { text-decoration: underline; }
ul.cards p { margin: .25rem 0 0; color: var(--muted); font-size: .95rem; }
aside.related { border-top: 1px solid var(--line); margin-top: 3rem; padding-top: 1.5rem; }
aside.related h2 { font-size: 1.05rem; margin-top: 0; }