.site-header {
  position: relative;
  z-index: 800;
  min-height: 4.5rem;
  border-bottom: var(--border-default);
  background: var(--color-obsidian);
}

.site-header__inner {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  gap: var(--space-5);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  flex: 0 1 auto;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-paper);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__logo {
  width: 2.5rem;
  height: 2.5rem;
  flex: 0 0 2.5rem;
  object-fit: contain;
}

.site-header__brand-text {
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-header__nav {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-4);
}

.site-header__nav-list {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: clamp(0.75rem, 1.3vw, 1.25rem);
  margin: 0;
  padding: 0;
}

.site-header__nav-list li,
.site-header__nav-list li + li {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
}

.site-header__nav-list a {
  position: relative;
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-mist);
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.site-header__nav-list a::after {
  position: absolute;
  right: 0;
  bottom: 0.35rem;
  left: 0;
  height: 2px;
  background: var(--color-amber);
  content: '';
  opacity: 0;
  transform: scaleX(0.45);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

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

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

.site-header__cta {
  flex: 0 0 auto;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 2.75rem;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.625rem;
  border: var(--border-metal);
  border-radius: var(--radius-control);
  background: var(--color-slate-panel);
}

.nav-toggle__line {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: var(--color-paper);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
  transform: translateY(0.375rem) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
  transform: translateY(-0.375rem) rotate(-45deg);
}

@media (max-width: 68rem) {
  .site-header__inner {
    justify-content: space-between;
    gap: var(--space-3);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: none;
    max-height: calc(100vh - 4.5rem);
    overflow-y: auto;
    border-bottom: var(--border-metal);
    background: var(--color-slate-panel);
    box-shadow: var(--shadow-overlay);
  }

  .site-header__nav.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
    padding: var(--space-5) max(var(--container-padding), 1rem);
  }

  .site-header__nav-list {
    display: grid;
    width: 100%;
    gap: 0;
  }

  .site-header__nav-list li,
  .site-header__nav-list li + li {
    width: 100%;
    border-bottom: var(--border-default);
  }

  .site-header__nav-list a {
    width: 100%;
    min-height: 3rem;
    font-size: var(--text-sm);
  }

  .site-header__nav-list a::after {
    right: auto;
    bottom: 0;
    width: 2px;
    height: 100%;
    transform: scaleY(0.45);
  }

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

  .site-header__cta {
    width: 100%;
  }

  body.has-mobile-nav-open {
    overflow: hidden;
  }
}

@media (max-width: 30rem) {
  .site-header__brand-text {
    font-size: 1rem;
  }

  .site-header__logo {
    width: 2rem;
    height: 2rem;
    flex-basis: 2rem;
  }
}

ul {
  list-style: none !important;
}

.nav-toggle {
  flex-direction: column;
}