.site-header {
  position: relative;
  z-index: 100;
  border-bottom: 1px solid var(--color-pixel-line);
  background: var(--color-night-navy);
  color: var(--color-paper-light);
}

.site-header::after {
  position: absolute;
  right: 8%;
  bottom: -1px;
  width: 3rem;
  height: 3px;
  background: var(--color-neon-lime);
  content: "";
}

.site-header__inner {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  gap: var(--space-3);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  flex: 1 1 auto;
  align-items: center;
  gap: 0.625rem;
  color: var(--color-paper-light);
  text-decoration: none;
}

.site-header__brand:hover {
  color: var(--color-paper-light);
  text-decoration: none;
}

.site-header__logo {
  width: 2.25rem;
  height: 2.25rem;
  flex: 0 0 2.25rem;
  object-fit: contain;
}

.site-header__brand-text {
  display: grid;
  min-width: 0;
  line-height: 1;
}

.site-header__brand-name,
.site-header__brand-subtitle {
  overflow: hidden;
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-header__brand-name {
  font-size: 0.875rem;
}

.site-header__brand-subtitle {
  margin-top: 0.25rem;
  color: var(--color-muted-blue);
  font-size: 0.625rem;
}

.site-header__toggle {
  display: inline-grid;
  width: 2.75rem;
  min-height: 2.75rem;
  flex: 0 0 2.75rem;
  align-content: center;
  justify-items: center;
  gap: 0.25rem;
  padding: 0.5rem;
  border: 1px solid var(--color-pixel-line);
  border-radius: var(--radius-control);
  background: var(--color-ink-blue);
  color: var(--color-paper-light);
}

.site-header__toggle:hover {
  border-color: var(--color-pixel-turquoise);
  background: var(--color-ink-blue);
  color: var(--color-paper-light);
  transform: none;
}

.site-header__toggle-line {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.site-header__nav {
  position: absolute;
  z-index: 110;
  top: calc(100% + 1px);
  right: 0;
  left: 0;
  display: none;
  max-height: calc(100vh - 4.5rem);
  padding: var(--space-4);
  overflow-y: auto;
  border-bottom: 1px solid var(--color-pixel-line);
  background: var(--color-deep-navy);
}

.site-header__nav.is-open {
  display: grid;
  gap: var(--space-4);
}

.site-header__nav-list,
.site-header__nav-list li {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__nav-list {
  gap: 0.25rem;
}

.site-header__nav-list li + li {
  margin: 0;
}

.site-header__nav-list a {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-control);
  color: var(--color-paper-light);
  font-family: var(--font-heading);
  font-size: var(--font-size-14);
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-decoration: none;
  text-transform: uppercase;
}

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

.site-header__nav-list a[aria-current="page"]::before {
  width: 0.375rem;
  height: 0.375rem;
  margin-right: 0.5rem;
  background: var(--color-neon-lime);
  content: "";
}

.site-header__cta {
  width: 100%;
}

@media (min-width: 66rem) {
  .site-header__inner {
    min-height: 5rem;
    gap: var(--space-4);
  }

  .site-header__brand {
    flex: 0 1 auto;
  }

  .site-header__logo {
    width: 2.875rem;
    height: 2.875rem;
    flex-basis: 2.875rem;
  }

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

  .site-header__brand-subtitle {
    font-size: 0.6875rem;
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
    display: flex;
    min-width: 0;
    max-height: none;
    flex: 1 1 auto;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: 0;
    overflow: visible;
    border: 0;
    background: transparent;
  }

  .site-header__nav-list {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 0.125rem;
  }

  .site-header__nav-list li {
    display: flex;
    min-width: 0;
    align-items: center;
  }

  .site-header__nav-list a {
    min-height: 3rem;
    padding: 0.5rem 0.375rem;
    font-size: 0.6875rem;
    white-space: nowrap;
  }

  .site-header__nav-mobile {
    display: none !important;
  }

  .site-header__cta {
    width: auto;
    flex: 0 0 auto;
    padding-inline: 0.75rem;
    font-size: 0.6875rem;
    white-space: nowrap;
  }
}

@media (min-width: 75rem) {
  .site-header__nav-list {
    gap: 0.375rem;
  }

  .site-header__nav-list a {
    padding-inline: 0.5rem;
    font-size: 0.75rem;
  }

  .site-header__cta {
    padding-inline: 1rem;
    font-size: var(--font-size-14);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__toggle-line {
    transition: none;
  }
}