.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-canvas);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: background-color 180ms ease-out, border-color 180ms ease-out;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-16);
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding-mobile);
  height: 72px;
}

@media (min-width: 641px) {
  .site-header__inner {
    padding-inline: var(--container-padding-desktop);
    height: 80px;
  }
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  flex-shrink: 0;
  text-decoration: none;
  color: var(--color-text-primary);
}

.site-header__logo {
  width: 34px;
  height: 34px;
  object-fit: contain;
  display: block;
}

@media (min-width: 641px) {
  .site-header__logo {
    width: 38px;
    height: 38px;
  }
}

.site-header__brand-text {
  font-size: 15px;
  line-height: 1.2;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--color-text-primary);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .site-header__brand-text {
    font-size: 13px;
    letter-spacing: 0.16em;
  }
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-8);
  background-color: transparent;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: border-color 140ms ease-out;
}

.nav-toggle:hover {
  border-color: var(--color-border-gold);
}

.nav-toggle:focus-visible {
  outline: none;
  border-color: var(--color-border-gold);
  box-shadow: 0 0 0 2px rgba(217, 142, 58, 0.4);
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 1px;
  background-color: var(--color-text-primary);
  transition: transform 220ms ease-out, opacity 220ms ease-out;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.site-nav {
  display: none;
}

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

  .site-nav {
    display: block;
  }

  .site-nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-24);
    list-style: none !important;
    margin: 0;
    padding: 0;
  }

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

  .site-nav__link {
    display: inline-block;
    padding: var(--space-8) 0;
    font-size: var(--text-nav-size);
    line-height: var(--text-nav-line-height);
    letter-spacing: var(--text-nav-tracking);
    text-transform: uppercase;
    font-weight: 500;
    color: var(--color-text-primary);
    text-decoration: none;
    white-space: nowrap;
    transition: color 140ms ease-out;
  }

  .site-nav__link:hover {
    color: var(--color-accent-amber);
  }

  .site-nav__link:focus-visible {
    outline: none;
    border-bottom: 1px solid var(--color-border-gold);
    box-shadow: 0 0 0 2px rgba(217, 142, 58, 0.4);
  }
}

@media (max-width: 1023px) {
  .site-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    background-color: var(--color-canvas);
    padding: var(--space-24);
    overflow-y: auto;
    display: block;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 220ms ease-out, transform 220ms ease-out, visibility 0s linear 220ms;
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity 220ms ease-out, transform 220ms ease-out;
  }

  .site-nav__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-24);
    list-style: none !important;
    margin: 0;
    padding: 0;
  }

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

  .site-nav__link {
    display: block;
    padding: var(--space-8) 0;
    font-size: var(--text-nav-size);
    line-height: var(--text-nav-line-height);
    letter-spacing: var(--text-nav-tracking);
    text-transform: uppercase;
    font-weight: 500;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color 140ms ease-out;
  }

  .site-nav__link:hover {
    color: var(--color-accent-amber);
  }

  .site-nav__link:focus-visible {
    outline: none;
    border-bottom: 1px solid var(--color-border-gold);
    box-shadow: 0 0 0 2px rgba(217, 142, 58, 0.4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav {
    transition: none;
  }

  .nav-toggle-bar {
    transition: none;
  }
}