.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-mist);
  border-bottom: var(--border-thin);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding-mobile);
  height: 64px;
}

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

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

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.site-header__toggle-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-charcoal);
  transition: transform var(--transition-default), opacity var(--transition-default);
}

.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;
  min-width: 0;
}

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

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

.site-header__nav-link {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-charcoal);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-default), background-color var(--transition-default);
}

.site-header__nav-link:hover {
  color: var(--color-eucalyptus);
  background-color: var(--color-sandstone);
}

.site-header__nav-link:focus-visible {
  outline: 2px solid var(--color-eucalyptus);
  outline-offset: 2px;
}

@media (min-width: 768px) {
  .site-header__inner {
    padding-inline: var(--container-padding-desktop);
    height: 72px;
  }

  .site-header__logo {
    width: 40px;
    height: 40px;
  }

  .site-header__brand-text {
    font-size: 18px;
  }
}

@media (max-width: 1023px) {
  .site-header__toggle {
    display: flex;
  }

  .site-header__nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-mist);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-md);
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--transition-default);
    z-index: 999;
  }

  .site-header__nav[data-menu-open] {
    transform: translateX(0);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-header__nav-item {
    border-bottom: var(--border-thin);
  }

  .site-header__nav-link {
    padding: var(--space-sm) var(--space-xs);
    font-size: var(--text-body);
  }
}

@media (min-width: 1024px) {
  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
    transform: none;
    flex-direction: row;
    align-items: center;
    overflow: visible;
    padding: 0;
  }

  .site-header__nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-xs);
  }

  .site-header__nav-link {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--text-caption);
  }
}