/* Scoped header styles */
.site-header {
  position: relative;
  z-index: 100;
  background-color: var(--color-ink);
  border-bottom: 1px solid var(--color-border-subtle);
}

.site-header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-4);
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-3) var(--container-padding);
  min-height: 4.5rem;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text-primary);
  min-width: 0;
  justify-self: center;
}

.site-header__brand:hover {
  text-decoration: none;
}

.site-header__logo {
  width: 3rem;
  height: 3rem;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  line-height: 1.2;
  font-weight: 600;
  white-space: nowrap;
}

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

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

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

.site-header__list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__item {
  margin: 0;
  padding: 0;
}

.site-header__item + .site-header__item {
  margin: 0;
}

.site-header__link {
  display: inline-block;
  padding: var(--space-1) 0;
  color: var(--color-text-primary);
  font-size: var(--text-body-size);
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.site-header__link:hover {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.site-header__link:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.3125rem;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.site-header__toggle:hover {
  background-color: var(--color-surface);
}

.site-header__toggle:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

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

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
  transform: translateY(0.4375rem) 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(-0.4375rem) rotate(-45deg);
}

.site-header__mobile {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-ink);
  border-bottom: 1px solid var(--color-border-subtle);
  max-height: calc(100vh - 4.5rem);
  overflow-y: auto;
  padding: var(--space-3) var(--container-padding);
  z-index: 99;
}

.site-header__mobile.is-open {
  display: block;
}

.site-header__mobile-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.site-header__mobile-item {
  margin: 0;
  padding: 0;
}

.site-header__mobile-link {
  display: block;
  padding: var(--space-2) var(--space-3);
  color: var(--color-text-primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-header__mobile-link:hover {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  text-decoration: none;
}

.site-header__mobile-link:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

@media (max-width: 64rem) {
  .site-header__nav {
    display: none;
  }

  .site-header__inner {
    grid-template-columns: 1fr auto 1fr;
  }

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

  .site-header__toggle {
    display: flex;
    justify-self: end;
  }
}

@media (max-width: 48rem) {
  .site-header__inner {
    padding: var(--space-2) var(--container-padding);
    min-height: 4rem;
    display: flex;
    justify-content: space-between;
  }

  .site-header__logo {
    width: 2.25rem;
    height: 2.25rem;
  }

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

  .site-header__mobile {
    max-height: calc(100vh - 4rem);
  }
}