/* Header layout & branding */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background-color: rgba(248, 245, 240, 0.88);
  border-bottom: 1px solid rgba(213, 206, 195, 0.8);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
  gap: var(--space-4);
}

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

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: inherit;
}

.site-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 20%, #e7f3eb 0, #3b7a4a 55%, #273029 100%);
  box-shadow: var(--shadow-sm);
}

.site-header__logo-text {
  display: flex;
  flex-direction: column;
}

.site-header__logo-main {
  font-family: var(--font-serif-soft);
  font-size: var(--font-size-xl);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-header__logo-sub {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

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

.site-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  padding-block: 0.35rem;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: var(--radius-pill);
  transition: width var(--transition-base);
}

.site-header__nav-link:hover::after,
.site-header__nav-link:focus-visible::after {
  width: 100%;
}

.site-header__nav-item--accent .site-header__nav-link {
  border-radius: var(--radius-pill);
  padding-inline: 0.9rem;
  padding-block: 0.45rem;
  border: 1px solid var(--color-gray-200);
}

.site-header__nav-link--accent {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
}

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

.site-header__nav-item--accent .site-header__nav-link:hover {
  background-color: rgba(224, 239, 228, 0.7);
}

.site-header__nav-icon {
  font-size: 0.9em;
}

/* Mobile toggle */
.site-header__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-gray-200);
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-text);
  cursor: pointer;
}

.site-header__toggle-label {
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header__toggle-icon {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.site-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 99px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Mobile-first: nav hidden until JS toggles */
.site-header__nav {
  position: fixed;
  inset-inline: 0;
  top: 56px;
  background-color: rgba(248, 245, 240, 0.98);
  border-bottom: 1px solid rgba(213, 206, 195, 0.9);
  transform: translateY(-120%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
}

.site-header__nav-list {
  flex-direction: column;
  align-items: center;
  padding: var(--space-4);
  gap: var(--space-3);
}

.site-header__nav-link {
  padding-block: 0.2rem;
}

.site-header__nav--open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.site-header__toggle--open .site-header__toggle-bar:first-child {
  transform: translateY(3px) rotate(45deg);
}

.site-header__toggle--open .site-header__toggle-bar:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

/* Desktop layout */
@media (min-width: 768px) {
  .site-header__inner {
    padding-block: var(--space-4);
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: transparent;
    border-bottom: none;
  }

  .site-header__nav-list {
    flex-direction: row;
    padding: 0;
    gap: var(--space-5);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .site-header__nav,
  .site-header__toggle-bar {
    transition: none;
  }
}