.site-header {
  position: relative;
  z-index: 100;
  background-color: var(--color-ink);
  border-bottom: var(--border-width) var(--border-style) var(--color-slate);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-gutter);
  min-height: 72px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
  text-decoration: none;
  color: var(--color-paper);
}

.site-header__brand:hover {
  color: var(--color-paper);
}

.site-header__logo {
  display: block;
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__wordmark {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--color-paper);
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.site-header__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-paper);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
  transform: translateY(7px) 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(-7px) rotate(-45deg);
}

.site-header__nav {
  display: flex;
  align-items: center;
  flex-shrink: 1;
  min-width: 0;
}

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

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

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

.site-header__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--space-2xs);
  font-size: var(--text-label-size);
  line-height: var(--text-label-leading);
  letter-spacing: var(--text-label-tracking);
  text-transform: uppercase;
  color: var(--color-paper);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-medium);
  white-space: nowrap;
}

.site-header__link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-cue);
  transition: width var(--transition-medium);
}

.site-header__link:hover {
  color: var(--color-cue);
}

.site-header__link:hover::after {
  width: 100%;
}

.site-header__link[aria-current="page"] {
  color: var(--color-cue);
}

.site-header__link[aria-current="page"]::after {
  width: 100%;
}

@media (max-width: 64rem) {
  .site-header__inner {
    min-height: 64px;
  }

  .site-header__logo {
    width: 32px;
    height: 32px;
  }

  .site-header__wordmark {
    font-size: 1.125rem;
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 85vw);
    background-color: var(--color-ink);
    border-left: var(--border-width) var(--border-style) var(--color-slate);
    padding: var(--space-xl) var(--space-lg);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--transition-medium), visibility var(--transition-medium);
    overflow-y: auto;
    z-index: 200;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
  }

  .site-header__nav.is-open {
    transform: translateX(0);
    visibility: visible;
  }

  .site-header__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-xs);
    width: 100%;
  }

  .site-header__item {
    width: 100%;
  }

  .site-header__link {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 48px;
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--text-body-size);
    line-height: var(--text-body-leading);
    letter-spacing: var(--text-body-tracking);
    text-transform: none;
    border-bottom: var(--border-width) var(--border-style) var(--color-slate);
  }

  .site-header__link::after {
    display: none;
  }

  .site-header__link:hover {
    color: var(--color-cue);
  }
}

@media (max-width: 48rem) {
  .site-header__inner {
    padding-inline: var(--container-gutter);
  }

  .site-header__logo {
    width: 28px;
    height: 28px;
  }

  .site-header__wordmark {
    font-size: 1rem;
  }
}

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

  .site-header__toggle-line {
    transition: none;
  }

  .site-header__link::after {
    transition: none;
  }
}