:root {
  --bg: #f7f6f2;
  --fg: #1f2326;
  --muted: #5d656c;
  --accent: #1f6f78;
  --accent-soft: #d8ecee;
  --rule: #d9d6cf;
  --card: #ffffff;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181b;
    --fg: #e8e6e1;
    --muted: #a3aab1;
    --accent: #6fc3cc;
    --accent-soft: #1d3a3e;
    --rule: #2c3237;
    --card: #1c2024;
  }
}

* { box-sizing: border-box; }

html { font-size: 17px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

header.site {
  border-bottom: 1px solid var(--rule);
  background: var(--card);
}

header.site .inner,
main,
footer.site .inner {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 1rem;
}

header.site .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 3.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-weight: 650;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: .01em;
  white-space: nowrap;
}

.brand svg { width: 1.5rem; height: 1.5rem; }

nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 1.1rem;
  font-size: .95rem;
}

nav a:hover, nav a[aria-current] { color: var(--accent); }

main { padding: 2.5rem 1rem 3rem; }

h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 .6rem; letter-spacing: -.01em; }
h2 { font-size: 1.3rem; margin: 2.2rem 0 .6rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 .4rem; }

p.lede { font-size: 1.15rem; color: var(--muted); margin: 0 0 1.6rem; }

p.meta { color: var(--muted); font-size: .9rem; margin: 0 0 1.8rem; }

a { color: var(--accent); }

ul, ol { padding-left: 1.3rem; }
li { margin: .3rem 0; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: .75rem;
  padding: 1rem 1.1rem;
}

.card h3 { margin: 0 0 .35rem; font-size: 1rem; }
.card p { margin: 0; color: var(--muted); font-size: .95rem; }

.note {
  background: var(--accent-soft);
  border-radius: .75rem;
  padding: .9rem 1.1rem;
  margin: 1.5rem 0;
}

.note p { margin: 0; }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .9em;
  background: var(--accent-soft);
  padding: .1em .35em;
  border-radius: .3em;
}

table { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: .95rem; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }

footer.site {
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: .9rem;
}

footer.site .inner {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  padding-top: 1.2rem;
  padding-bottom: 1.6rem;
}

footer.site a { color: var(--muted); }

@media (max-width: 40rem) {
  table { display: block; overflow-x: auto; }
}