/*
 * The documentation site, in one stylesheet.
 *
 * The page is a single readable column with a header of links and a footer, and
 * it follows the reader's colour scheme instead of imposing one.
 */

:root {
  color-scheme: light dark;
  --page: #ffffff;
  --ink: #1b1b1f;
  --muted: #5c5f66;
  --accent: #2f6f4f;
  --rule: #e2e3e7;
  --surface: #f6f7f9;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #16171a;
    --ink: #e7e8ea;
    --muted: #a3a6ad;
    --accent: #7fc9a0;
    --rule: #2c2e33;
    --surface: #1f2126;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.5rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--rule);
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
}

header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.95rem;
}

header nav a {
  color: var(--muted);
  text-decoration: none;
}

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

main {
  max-width: 48rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

footer {
  max-width: 48rem;
  margin: 0 auto;
  padding: 1.25rem 1.5rem 3rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.9rem;
}

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

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  margin: 2rem 0 0.75rem;
}

h1 {
  font-size: 2rem;
  margin-top: 0;
}

h2 {
  font-size: 1.45rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--rule);
}

h3 {
  font-size: 1.15rem;
}

code,
pre,
kbd {
  font-family:
    ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono",
    monospace;
  font-size: 0.9em;
}

code {
  background: var(--surface);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

pre {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
}

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

blockquote {
  margin: 1.25rem 0;
  padding: 0.25rem 1rem;
  border-left: 3px solid var(--rule);
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.95rem;
  display: block;
  overflow-x: auto;
}

th,
td {
  border: 1px solid var(--rule);
  padding: 0.45rem 0.7rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface);
}

hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 2.5rem 0;
}

img {
  max-width: 100%;
}