:root {
  --ink: light-dark(#1f2430, #e6e9f0);
  --muted: light-dark(#5b6472, #9aa3b2);
  --line: light-dark(#e3e6ec, #2c313c);
  --surface: light-dark(#ffffff, #171a21);
  --wash: light-dark(#f4f6fa, #1d212b);
  --accent: light-dark(#0b62c4, #5aa9ff);
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color-scheme: light dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.65 var(--sans);
  color: var(--ink);
  background: var(--surface);
}

header, main, footer {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-top: 1.6rem;
  padding-bottom: .4rem;
  border-bottom: 1px solid var(--line);
}

.brand .mark { font-weight: 700; }
nav a { margin-left: 1.1rem; color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--accent); }

main { padding-top: 1.6rem; padding-bottom: 3rem; }

h1, h2, h3 { line-height: 1.25; }
h2, h3 { margin-top: 2em; }

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

code, pre {
  font-family: var(--mono);
  font-size: .92em;
}

code {
  background: var(--wash);
  padding: .12em .35em;
  border-radius: 4px;
}

pre {
  background: var(--wash);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: .9rem 1.1rem;
  overflow-x: auto;
}

pre code { background: none; padding: 0; }

table { border-collapse: collapse; width: 100%; }
th, td { border: 1px solid var(--line); padding: .35rem .6rem; text-align: left; }
th { background: var(--wash); }

blockquote {
  margin: 1.2em 0;
  padding: .2rem 1rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}

.hero {
  margin-top: 2.2rem;
}
.hero h1 { font-size: 2rem; margin-bottom: .3rem; }
.hero p.tagline { font-size: 1.15rem; color: var(--muted); margin-top: 0; }

.page-list { list-style: none; padding: 0; }
.page-list li { padding: .45rem 0; border-bottom: 1px solid var(--line); }
.page-list a { text-decoration: none; font-weight: 600; }
.page-list a:hover { text-decoration: underline; }

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .9rem;
  padding-top: 1rem;
  padding-bottom: 2.5rem;
}