.site-header {
  position: relative;
  z-index: 1000;
  background-color: var(--color-warm-white);
  border-bottom: var(--border-light);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding-mobile);
  min-height: 4.5rem;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  min-width: 0;
  color: var(--color-slate);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.site-header__logo {
  width: 2.75rem;
  height: 2.75rem;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-name {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.site-header__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.3125rem;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  flex-shrink: 0;
}

.site-header__toggle:hover {
  background-color: rgba(39, 51, 58, 0.04);
}

.site-header__toggle:focus-visible {
  outline: 2px solid var(--color-bronze);
  outline-offset: 2px;
}

.site-header__toggle-line {
  display: block;
  width: 1.25rem;
  height: 0.125rem;
  background-color: var(--color-slate);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  transform-origin: center;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
  transform: translateY(0.4375rem) 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(-0.4375rem) rotate(-45deg);
}

.site-header__nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-warm-white);
  border-bottom: var(--border-light);
  box-shadow: var(--shadow-float);
  max-height: calc(100vh - 4.5rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-4) var(--container-padding-mobile) var(--space-6);
}

.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-2);
}

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

.site-header__nav-link {
  display: block;
  padding: var(--space-3) var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-body);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--color-slate);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-header__nav-link:hover {
  color: var(--color-bronze);
  background-color: rgba(39, 51, 58, 0.04);
}

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

.site-header__cta {
  display: none;
  flex-shrink: 0;
  min-height: 2.75rem;
  padding: 0.625rem 1.5rem;
  font-family: var(--font-heading);
  font-size: var(--text-body);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--color-warm-white);
  background-color: var(--color-dark-timber);
  border: 1px solid var(--color-dark-timber);
  border-radius: var(--radius-none);
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.site-header__cta:hover {
  background-color: var(--color-bronze);
  border-color: var(--color-bronze);
  color: var(--color-warm-white);
}

.site-header__cta:focus-visible {
  outline: 2px solid var(--color-bronze);
  outline-offset: 2px;
}

@media (min-width: 64rem) {
  .site-header__inner {
    padding-inline: var(--container-padding-desktop);
    min-height: 5rem;
  }

  .site-header__logo {
    width: 2.75rem;
    height: 2.75rem;
  }

  .site-header__brand-name {
    font-size: 1.25rem;
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    display: block;
    position: static;
    background: transparent;
    border-bottom: 0;
    box-shadow: none;
    max-height: none;
    overflow: visible;
    padding: 0;
    margin-inline: auto;
  }

  .site-header__nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-5);
  }

  .site-header__nav-link {
    padding: var(--space-2) 0;
    font-size: var(--text-overline);
    letter-spacing: var(--tracking-overline);
    text-transform: uppercase;
    color: var(--color-slate);
    position: relative;
  }

  .site-header__nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background-color: var(--color-bronze);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-fast);
  }

  .site-header__nav-link:hover::after,
  .site-header__nav-link:focus-visible::after {
    transform: scaleX(1);
  }

  .site-header__nav-link:hover {
    background-color: transparent;
  }

  .site-header__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (min-width: 80rem) {
  .site-header__inner {
    gap: var(--space-6);
  }
}