.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--stone-800);
  border-bottom: 1px solid var(--stone-700);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.6);
}

.site-header__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding-mobile);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: 56px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--parchment-100);
  flex-shrink: 0;
  min-width: 0;
}

.site-header__brand:hover {
  color: var(--ember-500);
}

.site-header__logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
  padding: 0;
}

.nav-toggle__line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--parchment-100);
  transition: transform var(--transition-medium), opacity var(--transition-fast);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-toggle:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-offset);
}

.site-nav {
  display: none;
  position: absolute;
  top: 56px;
  left: 0;
  right: 0;
  background-color: var(--stone-900);
  border-bottom: 1px solid var(--stone-700);
  max-height: calc(100vh - 56px);
  overflow-y: auto;
  z-index: 999;
}

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

.site-nav__list {
  list-style: none !important;
  margin: 0;
  padding: var(--space-3) 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

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

.site-nav__link {
  display: block;
  padding: var(--space-3) var(--container-padding-mobile);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--parchment-100);
  text-decoration: none;
  border-bottom: 1px solid var(--stone-700);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-nav__link:hover {
  color: var(--ember-500);
  background-color: var(--stone-800);
}

.site-nav__link:focus-visible {
  outline: var(--focus-outline);
  outline-offset: -2px;
}

.site-nav__link[aria-current="page"] {
  color: var(--ember-500);
  border-bottom: 2px solid var(--ember-500);
}

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

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

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

  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: block;
    position: static;
    background: none;
    border: none;
    max-height: none;
    overflow: visible;
  }

  .site-nav__list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-5);
    padding: 0;
  }

  .site-nav__item {
    margin: 0;
  }

  .site-nav__link {
    display: inline-block;
    padding: var(--space-2) 0;
    border-bottom: 2px solid transparent;
    font-size: 13px;
    line-height: 1.4;
  }

  .site-nav__link:hover {
    background: none;
    border-bottom-color: var(--parchment-300);
  }

  .site-nav__link[aria-current="page"] {
    border-bottom-color: var(--ember-500);
  }
}

@media (min-width: 1024px) {
  .site-header__inner {
    gap: var(--space-6);
  }

  .site-nav__list {
    gap: var(--space-6);
  }
}