:root {
  color-scheme: light dark;
  --background: #fbfcfd;
  --text: #1c2733;
  --secondary: #55616e;
  --accent: #2576bf;
  --line: #dde3e9;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #14191f;
    --text: #e8edf2;
    --secondary: #a3afbb;
    --accent: #7dbcf0;
    --line: #333d47;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  max-width: 44rem;
  padding: 1.5rem 1rem 4rem;
  background: var(--background);
  color: var(--text);
  font: 1.0625rem/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

nav { display: flex; gap: 1.25rem; margin-bottom: 3rem; }
nav a:first-child { margin-right: auto; font-weight: 600; color: var(--text); }
nav a { text-decoration: none; }
nav a[aria-current] { color: var(--text); }

h1 { font-size: 2.25rem; line-height: 1.2; margin: 0 0 1rem; }
h2 { font-size: 1.375rem; margin: 2.5rem 0 0.5rem; }
h3 { font-size: 1.125rem; margin: 1.75rem 0 0.25rem; }

a { color: var(--accent); }
.lead { font-size: 1.25rem; color: var(--secondary); }
code { font-size: 0.9em; }

.table { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.9375rem; }
th, td { border-bottom: 1px solid var(--line); padding: 0.5rem 0.75rem 0.5rem 0; text-align: left; vertical-align: top; }