.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}
.site-header__left {
  display: flex;
  align-items: center;
}
.navbar-brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.navbar-brand-text-main {
  font-size: 0.82rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.navbar-brand-text-sub {
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.site-header__utility {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.site-header__utility-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.1rem;
}
.site-header__utility-label {
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.site-header__utility-year {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary-strong);
}
.site-header__toggle {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.22rem;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  border: 1px solid rgba(245, 193, 95, 0.6);
  background: radial-gradient(circle at 30% 0, rgba(245, 193, 95, 0.4), rgba(5, 6, 10, 0.95));
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-normal), border-color var(--transition-normal), background-color var(--transition-normal);
}
.site-header__toggle:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-subtle);
}
.site-header__toggle:focus-visible {
  box-shadow: 0 0 0 2px rgba(245, 193, 95, 0.8);
}
.site-header__toggle-bar {
  width: 1.1rem;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal), width var(--transition-normal);
}
.site-header__toggle--open .site-header__toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.site-header__toggle--open .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
  width: 0.5rem;
}
.site-header__toggle--open .site-header__toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}
.site-header__mobile {
  position: fixed;
  inset: 0;
  top: 3.25rem;
  background: radial-gradient(circle at top, rgba(79, 177, 201, 0.2), rgba(5, 6, 10, 0.98) 55%);
  backdrop-filter: blur(18px);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
}
.site-header__mobile--open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}
.site-header__mobile-inner {
  padding-top: var(--space-md);
  padding-bottom: var(--space-xl);
}
.site-header__mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.site-header__mobile-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.site-header__mobile-item {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(5, 6, 10, 0.9);
}
.site-header__mobile-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.65rem 0.95rem;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}
.site-header__mobile-link:hover {
  background: rgba(245, 193, 95, 0.08);
  color: var(--color-primary-strong);
}
.site-header__mobile-link--active {
  border-radius: 999px;
  background: radial-gradient(circle at 0 0, rgba(245, 193, 95, 0.3), rgba(5, 6, 10, 0.95));
  color: var(--color-primary-strong);
  border-color: rgba(245, 193, 95, 0.7);
}
.site-header__mobile-link-label {
  flex: 1;
}
.site-header__mobile-link-tag {
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.site-header__mobile-meta {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: var(--space-md);
}
.site-header__mobile-stamp {
  align-self: flex-start;
}
.site-header__mobile-copy {
  max-width: 22rem;
}
@media (min-width: 768px) {
  .site-header__toggle {
    display: none;
  }
  .site-header__mobile {
    display: none;
  }
}
@media (max-width: 767.98px) {
  .navbar-nav.site-header__nav-list {
    display: none;
  }
  .site-header__utility-meta {
    display: none;
  }
}