/* Plain HTML, no JavaScript. White ground, black text, as the rest of the site. */
:root { color-scheme: light; }
* { box-sizing: border-box; }
body {
  margin: 0; padding: 4rem 1.5rem;
  background: #fff; color: #111;
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
}
main, footer { max-width: 42rem; margin: 0 auto; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; margin: 2.5rem 0 1rem; font-weight: 600; }
h1 { font-size: 1.75rem; margin-top: 0; }
h2 { font-size: 1.25rem; }
p, ul, ol, blockquote, pre { margin: 0 0 1.25rem; }
a { color: #111; text-underline-offset: 0.2em; }
a:hover, a:focus-visible { text-decoration-thickness: 2px; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; }
pre { padding: 1rem; overflow-x: auto; background: #f6f6f6; }
pre code { font-size: 0.85em; }
blockquote { padding-left: 1rem; border-left: 2px solid #ddd; color: #444; }
hr { border: 0; border-top: 1px solid #ddd; margin: 2.5rem 0; }
ul.index { list-style: none; padding: 0; }
ul.index li { margin-bottom: 1.5rem; }
ul.index .summary { color: #444; margin: 0.25rem 0 0; }
footer { margin-top: 4rem; padding-top: 1.5rem; border-top: 1px solid #ddd; font-size: 0.875rem; }