.site-header {
  position: relative;
  z-index: 50;
  padding: var(--space-4) 0;
}

.site-header__shell {
  width: min(100% - (var(--container-padding) * 2), var(--container-max));
  margin-inline: auto;
}

.site-header__dock {
  position: relative;
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  min-height: 4.75rem;
  padding: var(--space-3) var(--space-4);
  border: var(--border-ink);
  border-radius: var(--radius-dock);
  background: var(--color-paper);
  box-shadow: var(--shadow-offset);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  justify-self: center;
  gap: var(--space-2);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__logo {
  width: 2.625rem;
  height: 2.625rem;
  flex: 0 0 2.625rem;
  object-fit: contain;
}

.site-header__wordmark {
  min-width: 0;
}

.site-header__nav {
  min-width: 0;
}

.site-header__nav--left {
  justify-self: start;
}

.site-header__nav--right {
  justify-self: end;
}

.site-header__list,
.site-header__mobile-list {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__list {
  gap: var(--space-3);
}

.site-header__item,
.site-header__item + .site-header__item,
.site-header__mobile-list li,
.site-header__mobile-list li + li {
  margin: 0;
  padding: 0;
}

.site-header__link,
.site-header__search {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.5rem 0.625rem;
  border-radius: var(--radius-control);
  color: var(--color-ink);
  font-size: var(--text-label);
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-control), background-color var(--transition-control), transform var(--transition-control);
}

.site-header__link:hover,
.site-header__search:hover {
  color: var(--color-blue);
  background: var(--color-canvas);
  transform: translateY(-1px);
}

.site-header__actions {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
}

.site-header__search svg {
  width: 1.125rem;
  height: 1.125rem;
  flex: 0 0 auto;
}

.site-header__toggle {
  display: none;
  width: 2.75rem;
  min-width: 2.75rem;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: var(--border-ink);
  border-radius: var(--radius-card);
  background: var(--color-yellow);
  color: var(--color-ink);
}

.site-header__toggle-lines {
  display: grid;
  width: 1.25rem;
  gap: 0.25rem;
}

.site-header__toggle-lines span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--transition-control), opacity var(--transition-control);
}

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

.site-header__mobile-menu {
  position: absolute;
  z-index: 2;
  top: calc(100% + var(--space-2));
  right: 0;
  left: 0;
  max-height: min(70vh, 32rem);
  overflow: auto;
  padding: var(--space-3);
  border: var(--border-ink);
  border-radius: var(--radius-feature);
  background: var(--color-paper);
  box-shadow: var(--shadow-offset);
}

.site-header__mobile-menu[hidden] {
  display: none;
}

.site-header__mobile-list {
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-1);
}

.site-header__mobile-list a {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.625rem var(--space-3);
  border-radius: var(--radius-control);
  color: var(--color-ink);
  font-weight: 700;
  text-decoration: none;
}

.site-header__mobile-list a:hover {
  background: var(--color-yellow);
  color: var(--color-ink);
}

@media (max-width: 62rem) {
  .site-header__dock {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .site-header__brand {
    justify-self: start;
  }

  .site-header__nav--left,
  .site-header__nav--right {
    display: none;
  }

  .site-header__toggle {
    display: inline-flex;
  }
}

@media (max-width: 31rem) {
  .site-header {
    padding: var(--space-3) 0;
  }

  .site-header__dock {
    min-height: 4.25rem;
    padding: var(--space-2) var(--space-3);
  }

  .site-header__logo {
    width: 2.125rem;
    height: 2.125rem;
    flex-basis: 2.125rem;
  }

  .site-header__wordmark {
    display: none;
  }

  .site-header__search span {
    display: none;
  }

  .site-header__search {
    width: 2.75rem;
    padding: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__link:hover,
  .site-header__search:hover {
    transform: none;
  }
}