.site-header {
  position: relative;
  z-index: 1000;
  background-color: var(--color-cream);
  border-bottom: var(--border-width) solid var(--border-color);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 4.5rem;
  padding-block: var(--space-2);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
  text-decoration: none;
  color: var(--color-forest);
}

.site-header__logo {
  width: 3rem;
  height: 3rem;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
}

.site-header__nav {
  display: flex;
  align-items: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.site-header__nav-link {
  display: inline-block;
  padding-block: var(--space-2);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-forest);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-duration) var(--transition-ease);
}

.site-header__nav-link:hover {
  color: var(--color-moss);
}

.site-header__nav-link::after {
  content: "";
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-moss);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-duration) var(--transition-ease);
}

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

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.site-header__cta {
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-small);
  transition: background-color var(--transition-duration) var(--transition-ease);
}

.site-header__toggle:hover {
  background-color: var(--color-sand);
}

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

.site-header__toggle-icon {
  position: relative;
  display: block;
  width: 1.5rem;
  height: 2px;
  background-color: var(--color-forest);
  transition: background-color var(--transition-duration) var(--transition-ease);
}

.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-forest);
  transition: transform var(--transition-duration) var(--transition-ease);
}

.site-header__toggle-icon::before {
  top: -0.5rem;
}

.site-header__toggle-icon::after {
  top: 0.5rem;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon {
  background-color: transparent;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::before {
  transform: translateY(0.5rem) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::after {
  transform: translateY(-0.5rem) rotate(-45deg);
}

@media (max-width: 64rem) {
  .site-header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-cream);
    border-bottom: var(--border-width) solid var(--border-color);
    box-shadow: var(--shadow-soft);
    max-height: calc(100vh - 4.5rem);
    overflow-y: auto;
    display: none;
    z-index: 999;
  }

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

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-3);
  }

  .site-header__nav-item {
    width: 100%;
  }

  .site-header__nav-link {
    display: block;
    padding: var(--space-3);
    border-radius: var(--radius-small);
  }

  .site-header__nav-link::after {
    display: none;
  }

  .site-header__nav-link:hover {
    background-color: var(--color-sand);
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__cta {
    display: none;
  }
}

@media (max-width: 48rem) {
  .site-header__logo {
    width: 2.5rem;
    height: 2.5rem;
  }

  .site-header__brand-text {
    font-size: 1.125rem;
  }
}