:root {
  color-scheme: light dark;
  --bg: #fff;
  --fg: #111;
  --muted: #6b6b6b;
  --rule: #e6e6e6;
  --link: #111;
  --code: #f3f3f3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000;
    --fg: #f2f2f2;
    --muted: #9a9a9a;
    --rule: #262626;
    --link: #fff;
    --code: #161616;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 2rem;
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--fg);
  text-decoration: none;
}

nav { display: flex; gap: 1rem; font-size: 0.95rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--fg); }

h1 {
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  margin: 2.25rem 0 0.5rem;
}

h3 { font-size: 1.05rem; margin: 1.5rem 0 0.25rem; }

p, ul, table { margin: 0 0 1rem; }
ul { padding-left: 1.25rem; }
li { margin-bottom: 0.35rem; }

a { color: var(--link); text-underline-offset: 0.15em; }

code {
  font: 0.88em ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: var(--code);
  padding: 0.1em 0.3em;
  border-radius: 4px;
  overflow-wrap: anywhere;
}

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

table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; padding: 0.5rem 0.5rem 0.5rem 0; border-bottom: 1px solid var(--rule); }
th { font-weight: 600; }
.table-scroll { overflow-x: auto; }

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-size: 0.9rem;
  color: var(--muted);
}
footer a { color: var(--muted); }

@media (max-width: 480px) {
  body { font-size: 16px; }
  h1 { font-size: 1.7rem; }
}