.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-charcoal);
  border-bottom: 1px solid var(--color-border-gold-soft);
  height: 64px;
}

.site-header__inner {
  max-width: var(--container-editorial);
  margin: 0 auto;
  padding: 0 var(--page-padding-mobile);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

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

.site-header__logo {
  width: 36px;
  height: 36px;
  display: block;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-white);
  line-height: 1;
}

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

.site-header__toggle:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
}

.site-header__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  transition: background-color var(--transition-fast), 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: none;
  position: fixed;
  top: 64px;
  right: 0;
  bottom: 0;
  width: min(320px, 100vw);
  background-color: var(--color-charcoal);
  border-left: 1px solid var(--color-border-gold-soft);
  padding: var(--space-lg);
  overflow-y: auto;
  z-index: 999;
}

.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-md);
}

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

.site-header__nav-link {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-body-size);
  font-weight: 500;
  color: var(--color-white);
  text-decoration: none;
  padding: var(--space-sm) 0;
  transition: color var(--transition-fast);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  color: var(--color-gold);
}

.site-header__nav-link:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
}

@media (min-width: 48rem) {
  .site-header__inner {
    padding: 0 var(--page-padding-tablet);
  }
}

@media (min-width: 75rem) {
  .site-header__inner {
    padding: 0 var(--page-padding-desktop);
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    display: block;
    position: static;
    width: auto;
    background: transparent;
    border: none;
    padding: 0;
    overflow: visible;
    z-index: auto;
  }

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

  .site-header__nav-link {
    padding: var(--space-xs) 0;
    font-size: var(--text-small-size);
  }
}

@media (max-width: 74.99rem) {
  .site-header__nav {
    transition: transform 300ms ease-out;
    transform: translateX(100%);
  }

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