#product-subnav-wrapper-2026.sub-nav-pdp {
  position: sticky;
  top: 0;
  z-index: 99; /* Below mega menu (z-index: 100) */
  background: #fff;
  border-bottom: 1px solid #e5e5e5;
}

/* Add transition only on desktop */
@media (min-width: 768px) {
  #product-subnav-wrapper-2026.sub-nav-pdp {
    transition: top 0.3s ease;
  }
}

@media (max-width: 1023px) {
  #product-subnav-wrapper-2026.sub-nav-pdp {
    position: sticky;
    top: calc(
      var(--header-total-height, 140px)
    ); /* Use CSS variable set by nav JS */
    z-index: 104;
    background: #fff;
    transition: none; /* No transition on initial load */
  }

  /* Enable transition after page loads */
  #product-subnav-wrapper-2026.sub-nav-pdp.ready {
    transition: top 0.3s ease;
  }
}

/* Hide product sub nav when mobile menu is open */
body.mobile-menu-open #product-subnav-wrapper-2026.sub-nav-pdp {
  display: none;
}