.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.35s var(--ease-out), backdrop-filter 0.35s var(--ease-out);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-md);
}

/* Transparent header over home hero */
.page-home .site-header:not(.is-scrolled) {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: transparent;
  border-bottom-color: transparent;
  box-shadow: none;
}

.page-home .site-header:not(.is-scrolled) .nav-menu a,
.page-home .site-header:not(.is-scrolled) .nav-dropdown__toggle {
  color: rgba(255, 255, 255, 0.92);
}

.page-home .site-header:not(.is-scrolled) .nav-menu a:hover,
.page-home .site-header:not(.is-scrolled) .nav-dropdown__toggle:hover,
.page-home .site-header:not(.is-scrolled) .nav-menu a.is-active,
.page-home .site-header:not(.is-scrolled) .nav-dropdown__toggle.is-active {
  color: #fff;
}

.page-home .site-header:not(.is-scrolled) .nav-menu a.is-active::after,
.page-home .site-header:not(.is-scrolled) .nav-dropdown__toggle.is-active::before {
  background: var(--color-accent);
}

.page-home .site-header:not(.is-scrolled) .nav-search-icon {
  color: rgba(255, 255, 255, 0.9);
}

.page-home .site-header:not(.is-scrolled) .nav-search-icon:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.page-home .site-header:not(.is-scrolled) .nav-toggle__bar {
  background: #fff;
}

.page-home .site-header:not(.is-scrolled) .logo {
  filter: brightness(0) invert(1);
}

.page-home .site-header:not(.is-scrolled) .header-newsletter-btn {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff;
}

.page-home .site-header:not(.is-scrolled) .header-newsletter-btn:hover {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

.page-home .site-header:not(.is-scrolled) .nav-dropdown__menu {
  background: rgba(15, 61, 42, 0.96);
  border-color: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
}

.page-home .site-header:not(.is-scrolled) .nav-dropdown__menu a {
  color: rgba(255, 255, 255, 0.9);
}

.page-home .site-header:not(.is-scrolled) .nav-dropdown__menu a:hover,
.page-home .site-header:not(.is-scrolled) .nav-dropdown__menu a.is-active {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

@media (max-width: 768px) {
  .page-home .site-header:not(.is-scrolled).is-menu-open,
  .page-home .site-header:not(.is-scrolled):has(.nav-menu.is-open) {
    background: rgba(10, 46, 31, 0.96);
    backdrop-filter: blur(12px);
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }
}

.header-inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.85rem 1.25rem;
}

.logo img {
  height: 56px;
  width: auto;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex: 1;
  justify-content: flex-end;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  margin-left: auto;
}

.nav-toggle__bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-green-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-menu {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: wrap;
}

.nav-menu a,
.nav-dropdown__toggle {
  display: block;
  padding: 0.55rem 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: 0;
  position: relative;
  transition: color var(--transition);
  background: transparent;
}

.nav-menu a:hover,
.nav-dropdown__toggle:hover {
  background: transparent;
  color: var(--color-green-primary);
}

.nav-menu a.is-active {
  color: var(--color-green-primary);
  font-weight: 600;
}

.nav-menu a.is-active::after {
  content: '';
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  bottom: 0.2rem;
  height: 2px;
  background: var(--color-green-primary);
  border-radius: 1px;
}

.nav-dropdown__toggle.is-active {
  color: var(--color-green-primary);
  font-weight: 600;
  position: relative;
}

.nav-dropdown__toggle.is-active::before {
  content: '';
  position: absolute;
  left: 0.85rem;
  right: 1.5rem;
  bottom: 0.2rem;
  height: 2px;
  background: var(--color-green-primary);
  border-radius: 1px;
}

.nav-dropdown__menu a.is-active {
  color: var(--color-green-primary);
  font-weight: 600;
  background: var(--color-beige);
}

.nav-dropdown__menu a.is-active::after {
  display: none;
}

@media (max-width: 768px) {
  .nav-menu a.is-active::after {
    left: 0.85rem;
    right: auto;
    width: 2rem;
    bottom: 0.35rem;
  }

  .nav-dropdown__toggle.is-active::before {
    left: 0.85rem;
    right: auto;
    width: 2rem;
  }
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown__toggle::after {
  content: ' ▾';
  font-size: 0.75rem;
}

.nav-dropdown__menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  padding: 0.5rem 0;
  z-index: 100;
}

.nav-dropdown.is-open .nav-dropdown__menu {
  display: block;
}

.nav-dropdown__menu a {
  padding: 0.6rem 1.25rem;
  font-size: 0.9rem;
}

.nav-dropdown__menu a.is-active::after {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.nav-search-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-search-icon:hover {
  color: var(--color-green-primary);
  background: var(--color-beige);
}

.header-newsletter-btn {
  gap: 0.45rem;
  padding: 0.65rem 1.1rem;
  font-size: 0.9rem;
  white-space: nowrap;
}

.nav-search-link {
  color: var(--color-green-primary) !important;
  font-weight: 600 !important;
}

@media (max-width: 900px) {
  .header-newsletter-btn span,
  .header-newsletter-btn {
    font-size: 0.85rem;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
    position: absolute;
    right: 1.25rem;
    top: 1.1rem;
  }

  .header-inner {
    position: relative;
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .main-nav {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    width: 100%;
    padding-top: 0.5rem;
    align-items: stretch;
  }

  .nav-menu.is-open {
    display: flex;
  }

  .header-actions {
    display: none;
    width: 100%;
    padding: 0.35rem 0 0.5rem;
  }

  .main-nav.is-open .nav-menu,
  .nav-menu.is-open {
    display: flex;
  }

  .main-nav.is-open .header-actions {
    display: flex;
  }

  .nav-dropdown__menu {
    position: static;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
  }

  .nav-dropdown.is-open .nav-dropdown__menu {
    display: block;
  }
}