/* The page header and footer, from the signed-off sketches. Sizes are rem, the
   16px browser root, scaled up to sit beside the 18.7px body text. */

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-head {
  position: sticky;
  top: 0;
  z-index: 5;
  padding-inline: 16px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap {
  height: 70px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  margin-right: auto;
}
.brand svg {
  height: 28px;
  width: auto;
  fill: var(--heading);
}
.brand span {
  font-family: var(--title-font);
  font-weight: 600;
  font-size: 1.33rem;
  letter-spacing: -.005em;
}
.site-nav {
  display: flex;
  gap: 24px;
}
.site-nav a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 1.1rem;
  padding-block: 4px;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover {
  color: var(--link);
}
.site-nav a[aria-current] {
  color: var(--heading);
  border-bottom-color: var(--accent);
}
.theme-btn {
  font-family: var(--mono-font);
  font-size: 15px;
  color: var(--ink-2);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  white-space: nowrap;
}

.site-foot {
  margin-top: 72px;
  padding: 20px 16px 64px;
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: .8rem;
}
.site-foot .wrap {
  flex-wrap: wrap;
  gap: 8px 28px;
  align-items: baseline;
}
.site-foot a {
  color: var(--ink-2);
}