.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-ink);
  border-block-end: var(--border-default);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  padding-block: var(--space-xs);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
  min-width: 0;
}

.site-header__logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__wordmark {
  font-family: var(--font-heading);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-header__toggle {
  display: inline-flex;
  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: 22px;
  height: 2px;
  background-color: var(--color-white);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  transform-origin: center;
}

.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__toggle:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.site-header__nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-ink);
  border-block-end: var(--border-default);
  padding: var(--space-md) var(--container-padding-mobile);
  display: none;
  max-height: calc(100vh - 56px);
  overflow-y: auto;
  z-index: 99;
}

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

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

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

.site-header__nav-link {
  display: block;
  padding: var(--space-xs) 0;
  font-family: var(--font-body);
  font-size: var(--text-button-size);
  line-height: var(--text-button-line-height);
  letter-spacing: var(--text-button-letter-spacing);
  text-transform: uppercase;
  color: var(--color-grey);
  transition: color var(--transition-fast);
}

.site-header__nav-link:hover {
  color: var(--color-white);
}

.site-header__nav-link[aria-current="page"] {
  color: var(--color-gold);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.site-header__cta {
  margin-block-start: var(--space-sm);
  width: 100%;
}

@media (min-width: 768px) {
  .site-header__inner {
    min-height: 72px;
    padding-block: var(--space-sm);
  }

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

  .site-header__wordmark {
    font-size: 13px;
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background-color: transparent;
    border-block-end: none;
    padding: 0;
    max-height: none;
    overflow-y: visible;
    z-index: auto;
  }

  .site-header__nav-list {
    flex-direction: row;
    gap: var(--space-sm);
  }

  .site-header__nav-link {
    padding: var(--space-xs) 0;
    font-size: 13px;
    letter-spacing: 0.08em;
  }

  .site-header__cta {
    margin-block-start: 0;
    width: auto;
    flex-shrink: 0;
  }
}

@media (min-width: 1024px) {
  .site-header__inner {
    gap: var(--space-lg);
  }

  .site-header__nav {
    gap: var(--space-lg);
  }

  .site-header__nav-list {
    gap: var(--space-md);
  }
}