:root {
  --site-nav-paper: #eee9df;
  --site-nav-muted: #aeb5ae;
  --site-nav-accent: #cfaa86;
  --site-nav-gutter: clamp(24px, 4.4vw, 84px);
}

.site-header {
  position: sticky;
  z-index: 80;
  top: 0;
  display: flex;
  align-items: center;
  min-height: 94px;
  padding: 0 var(--site-nav-gutter);
  border-bottom: 1px solid rgba(238, 233, 223, 0.12);
  background: rgba(18, 27, 23, 0.92);
  color: var(--site-nav-paper);
  backdrop-filter: blur(14px);
}

.site-header--overlay {
  position: relative;
  background: linear-gradient(180deg, rgba(4, 6, 6, 0.58), transparent);
  border-bottom-color: transparent;
  backdrop-filter: none;
  animation: interfaceReveal 0.8s ease-out 0.32s both;
}

.site-brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: fit-content;
  color: var(--site-nav-paper);
  text-decoration: none;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.55);
}

.site-brand strong {
  font: 400 27px/1.15 Georgia, "Times New Roman", serif;
}

.site-brand small {
  margin-top: 6px;
  color: var(--site-nav-muted);
  font: 11px/1.4 Arial, sans-serif;
}

.site-nav {
  position: absolute;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 30px;
  transform: translateX(-50%);
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 2px 0;
  color: var(--site-nav-paper);
  font: 15px/1.4 Arial, sans-serif;
  text-decoration: none;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.65);
  transition: color 180ms ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 6px;
  left: 0;
  height: 1px;
  background: currentColor;
  opacity: 0;
  transform: scaleX(0.35);
  transition: opacity 180ms ease, transform 180ms ease;
}

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

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.site-nav a:focus-visible,
.site-brand:focus-visible,
.site-menu-toggle:focus-visible {
  outline: 2px solid var(--site-nav-paper);
  outline-offset: 5px;
}

.site-menu-toggle {
  display: none;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--site-nav-paper);
}

.site-menu-toggle svg {
  width: 25px;
  height: 25px;
}

.site-menu-toggle .menu-close-icon { display: none; }
.site-menu-toggle[aria-expanded="true"] .menu-open-icon { display: none; }
.site-menu-toggle[aria-expanded="true"] .menu-close-icon { display: block; }

.site-header .extras {
  margin-left: auto;
}

@media (max-width: 1100px) {
  .site-menu-toggle { display: grid; }

  .site-nav {
    top: calc(100% - 4px);
    right: var(--site-nav-gutter);
    left: auto;
    display: none;
    width: 250px;
    max-width: calc(100vw - 48px);
    padding: 14px 24px 18px;
    border: 1px solid rgba(238, 233, 223, 0.2);
    border-radius: 4px;
    background: rgba(15, 24, 20, 0.98);
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.32);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    transform: none;
  }

  .site-nav.is-open { display: flex; }
  .site-nav a { width: 100%; padding: 7px 0; }
  .site-nav a::after { bottom: 5px; transform-origin: left; }

  .site-header .extras {
    position: fixed;
    top: auto;
    right: auto;
    bottom: calc(22px + env(safe-area-inset-bottom, 0px));
    left: calc(var(--site-nav-gutter) - 12px);
  }
}

@media (max-width: 600px) {
  .site-header {
    min-height: 76px;
    padding-top: env(safe-area-inset-top, 0px);
  }

  .site-brand strong { font-size: 22px; }
  .site-brand small { margin-top: 4px; font-size: 10px; }
  .site-nav { top: calc(100% + 5px); }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav a,
  .site-nav a::after { transition: none; }
}