.page-header__nav {
  margin-left: auto;
}

.page-header__nav-contact {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-mono);
  line-height: var(--line-height-normal);
  color: var(--color-text-muted);
  text-transform: uppercase;
  text-decoration: none;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: color var(--duration-normal) var(--ease-out);
}

.page-header__nav-contact:hover {
  color: var(--color-accent);
}

.page-header__nav-contact:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.page-header__menu-toggle {
  display: none;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-family-mono);
  font-size: var(--font-size-mono);
  line-height: var(--line-height-normal);
  color: var(--color-text-muted);
  text-transform: uppercase;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: color var(--duration-normal) var(--ease-out);
}

.page-header__menu-toggle:hover {
  color: var(--color-accent);
}

.page-header__menu-toggle:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.page-header__menu-toggle-icon,
.page-header__menu-toggle-icon::before,
.page-header__menu-toggle-icon::after {
  display: block;
  width: 16px;
  height: 1px;
  background: currentColor;
  transition: transform var(--duration-normal) var(--ease-out),
    opacity var(--duration-normal) var(--ease-out);
}

.page-header__menu-toggle-icon {
  position: relative;
}

.page-header__menu-toggle-icon::before,
.page-header__menu-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.page-header__menu-toggle-icon::before {
  transform: translateY(-5px);
}

.page-header__menu-toggle-icon::after {
  transform: translateY(5px);
}

.page-header.is-nav-open .page-header__menu-toggle-icon {
  background: transparent;
}

.page-header.is-nav-open .page-header__menu-toggle-icon::before {
  transform: rotate(45deg);
}

.page-header.is-nav-open .page-header__menu-toggle-icon::after {
  transform: rotate(-45deg);
}

@media (max-width: 768px) {
  .page-header {
    padding-right: var(--container-padding-sm);
    padding-left: var(--container-padding-sm);
    gap: var(--space-2);
    z-index: 80;
  }

  .page-header__logo {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .page-header__menu-toggle {
    display: inline-flex;
  }

  .page-header__nav {
    position: absolute;
    top: calc(100% + var(--space-1));
    right: var(--container-padding-sm);
    left: var(--container-padding-sm);
    z-index: 120;
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-left: 0;
    padding: var(--space-1);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity var(--duration-normal) var(--ease-out),
      transform var(--duration-normal) var(--ease-out),
      visibility var(--duration-normal);
  }

  .page-header.is-nav-open .page-header__nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .page-header__nav a,
  .page-header__nav-contact {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 0 var(--space-2);
    border-radius: var(--radius-sm);
  }

  .page-header__nav a:hover,
  .page-header__nav a:focus-visible,
  .page-header__nav-contact:hover,
  .page-header__nav-contact:focus-visible {
    color: var(--color-accent);
    background: rgba(230, 95, 46, 0.08);
  }

  .page-header__nav a:focus-visible,
  .page-header__nav-contact:focus-visible {
    outline: var(--focus-ring);
    outline-offset: var(--focus-offset);
  }
}