.site-header {
  position: relative;
  z-index: 1000;
  height: 4.75rem;
  isolation: isolate;
}

.site-header__bar {
  position: fixed;
  z-index: 1002;
  top: 0;
  right: 0;
  left: 0;
  height: 4.75rem;
  border-block-end: 1px solid var(--color-border);
  background: rgba(7, 11, 28, 0.82);
  backdrop-filter: blur(20px) saturate(125%);
}

.site-header__inner {
  display: grid;
  width: min(calc(100% - (var(--container-inline) * 2)), var(--container-max));
  height: 100%;
  min-width: 0;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  margin-inline: auto;
  column-gap: var(--space-4);
}

.site-header__desktop-nav {
  min-width: 0;
}

.site-header__desktop-nav ul,
.site-header__mobile-nav ul {
  display: flex;
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__desktop-nav ul {
  align-items: center;
  gap: clamp(0.65rem, 1.5vw, 1.35rem);
}

.site-header__desktop-nav li,
.site-header__mobile-nav li,
.site-header__desktop-nav li + li,
.site-header__mobile-nav li + li {
  min-width: 0;
  margin: 0;
}

.site-header__desktop-nav--right ul {
  justify-content: flex-end;
}

.site-header__desktop-nav a {
  position: relative;
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0.25rem;
  left: 0;
  height: 2px;
  background: var(--color-aurora-bright);
  box-shadow: 0 0 12px rgba(195, 181, 255, 0.45);
  content: "";
  opacity: 0;
  transform: scaleX(0.55);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

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

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

.site-header__contact-link {
  color: var(--color-aurora-bright) !important;
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  min-height: 2.75rem;
  align-items: center;
  justify-self: center;
  gap: 0.625rem;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__logo {
  width: 2rem;
  height: 2rem;
  max-width: none;
  flex: 0 0 2rem;
  object-fit: contain;
}

.site-header__toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  justify-self: end;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-glass);
  color: var(--color-text);
  backdrop-filter: blur(20px) saturate(125%);
  transition: border-color var(--transition-base), background-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header__toggle:hover {
  border-color: var(--color-border-active);
  background: var(--color-glass-hover);
  box-shadow: var(--shadow-glow);
}

.site-header__toggle-lines {
  display: flex;
  width: 1.125rem;
  flex-direction: column;
  gap: 0.25rem;
}

.site-header__toggle-lines span {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transform-origin: center;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(1) {
  transform: translateY(0.375rem) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(2) {
  opacity: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(3) {
  transform: translateY(-0.375rem) rotate(-45deg);
}

.site-header__mobile-nav {
  position: fixed;
  z-index: 1001;
  inset: 4rem 0 0;
  display: none;
  overflow-x: hidden;
  overflow-y: auto;
  border-block-start: 1px solid var(--color-border);
  background: rgba(7, 11, 28, 0.94);
  backdrop-filter: blur(24px) saturate(130%);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-0.75rem);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.site-header__mobile-nav.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.site-header__mobile-nav-inner {
  display: flex;
  width: min(calc(100% - (var(--container-inline) * 2)), 36rem);
  min-height: 100%;
  flex-direction: column;
  gap: var(--space-6);
  margin-inline: auto;
  padding-block: var(--space-8);
}

.site-header__mobile-label {
  margin: 0;
  color: var(--color-aurora-bright);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: var(--leading-xs);
  text-transform: uppercase;
}

.site-header__mobile-nav ul {
  flex-direction: column;
  gap: var(--space-1);
}

.site-header__mobile-nav a:not(.button) {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  padding: var(--space-2) 0;
  border-block-end: 1px solid rgba(174, 157, 255, 0.16);
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  text-decoration: none;
}

.site-header__mobile-nav a:not(.button):hover,
.site-header__mobile-nav a:not(.button)[aria-current="page"] {
  color: var(--color-aurora-bright);
}

.site-header__mobile-contact {
  align-self: flex-start;
}

body.site-header-menu-open {
  overflow: hidden;
}

@media (max-width: 62rem) {
  .site-header {
    height: 4rem;
  }

  .site-header__bar {
    height: 4rem;
  }

  .site-header__inner {
    grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem;
  }

  .site-header__desktop-nav {
    display: none;
  }

  .site-header__brand {
    grid-column: 2;
  }

  .site-header__logo {
    width: 1.75rem;
    height: 1.75rem;
    flex-basis: 1.75rem;
  }

  .site-header__brand-text {
    font-size: 1rem;
  }

  .site-header__toggle {
    display: inline-flex;
    grid-column: 3;
  }

  .site-header__mobile-nav {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__mobile-nav {
    transform: none;
  }
}