/* Stable site navigation, with colors inherited from each page's palette. */
:root { --site-navigation-height: 68px; }
html { scroll-padding-top: calc(var(--site-navigation-height) + 12px); }
/* Keep keyboard skip links above the persistent header. */
.skip:focus, .skip-link:focus { z-index: 20; }
.site-navigation {
  --nav-ink: var(--ink, var(--text, #182127));
  --nav-muted: var(--muted, var(--text-soft, #59676e));
  --nav-line: var(--line, var(--border, rgb(24 33 39 / 14%)));
  --nav-paper: var(--paper, var(--surface-strong, var(--bg, #fffaf2)));
  --nav-accent: var(--accent-deep, var(--accent, #0a5c69));
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  position: sticky; top: 0; z-index: 10; box-sizing: border-box;
  gap: 1rem; width: 100%; min-height: 68px;
  margin-inline: auto; padding: .5rem max(1rem, calc((100% - 1160px) / 2));
  border: 0; border-bottom: 1px solid var(--nav-line);
  background: var(--nav-paper); color: var(--nav-ink);
  font-family: "Avenir Next", "Segoe UI Variable", "Segoe UI", sans-serif;
}
/* Frost the content beneath the header while keeping navigation crisp. */
@supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)) {
  .site-navigation {
    background: color-mix(in srgb, var(--nav-paper) 76%, transparent);
    -webkit-backdrop-filter: blur(18px) saturate(115%);
    backdrop-filter: blur(18px) saturate(115%);
  }
}
@media (prefers-reduced-transparency: reduce) {
  .site-navigation {
    background: var(--nav-paper);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}
.site-navigation .site-navigation-brand {
  display: inline-flex; align-items: center; gap: .55rem; min-height: 44px; max-width: none;
  color: var(--nav-ink); font: 700 1.18rem/1.2 Georgia, "Times New Roman", serif;
  letter-spacing: normal; text-transform: none; text-decoration: none;
}
.site-navigation .site-brand-mark { width: 32px; height: 32px; flex: 0 0 32px; color: inherit; }
.site-navigation .site-navigation-brand > span { min-width: 0; }
.site-navigation nav.site-navigation-links {
  display: flex; align-items: center; flex-wrap: nowrap; gap: .45rem; margin: 0;
}
.site-navigation nav.site-navigation-links a {
  display: inline-flex; align-items: center; gap: .4rem; min-height: 44px;
  width: auto; height: auto; padding: .45rem .6rem; border: 0; border-radius: 999px;
  color: var(--nav-ink); background: transparent; box-shadow: none;
  font-size: .95rem; font-weight: 400; line-height: 1.6; text-decoration: none;
}
.site-navigation .nav-icon {
  width: 18px; height: 18px; flex: 0 0 18px; fill: none; stroke: currentColor;
  stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round;
}
.site-navigation .nav-label { display: inline; position: static; width: auto; height: auto; margin: 0; overflow: visible; clip: auto; white-space: nowrap; }
.site-navigation nav.site-navigation-links a:hover {
  background: color-mix(in srgb, var(--nav-accent) 9%, transparent); color: var(--nav-accent);
}
.site-navigation nav.site-navigation-links a[aria-current] { color: var(--nav-accent); font-weight: 750; }
.site-navigation a[aria-current] .nav-label { text-decoration: underline; text-underline-offset: .35em; text-decoration-thickness: 2px; }
.site-navigation #theme-toggle.pv-theme-toggle {
  margin-left: 0; border-color: var(--nav-line);
  background: color-mix(in srgb, var(--nav-paper) 72%, transparent); color: var(--nav-muted);
}
.site-navigation #theme-toggle.pv-theme-toggle:hover { color: var(--nav-ink); border-color: var(--nav-accent); }
.site-navigation :focus-visible { outline: 2px solid var(--nav-accent); outline-offset: 4px; }
.section-navigation { display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; padding-block: .75rem; }
.section-navigation a { display: inline-flex; align-items: center; min-height: 44px; color: inherit; text-underline-offset: .2em; }
@media (max-width: 760px) {
  :root { --site-navigation-height: 60px; }
  .site-navigation { min-height: 60px; flex-wrap: nowrap; gap: .25rem; padding-block: .35rem; }
  .site-navigation .site-navigation-brand { min-width: 0; max-width: 9rem; gap: .25rem; font-size: .9rem; overflow-wrap: anywhere; }
  .site-navigation .site-brand-mark { width: 24px; height: 24px; flex-basis: 24px; }
  .site-navigation nav.site-navigation-links { flex: 0 0 auto; gap: .375rem; }
  .site-navigation nav.site-navigation-links a { width: 44px; height: 44px; padding: 0; justify-content: center; }
  .site-navigation .nav-icon { width: 20px; height: 20px; flex-basis: 20px; }
  .site-navigation .nav-label { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); }
  .site-navigation nav.site-navigation-links a[aria-current] { background: color-mix(in srgb, var(--nav-accent) 12%, var(--nav-paper)); box-shadow: inset 0 -2px var(--nav-accent); }
}