const HEADER_POINT = 70;
let lastScrollY = window.scrollY;

window.addEventListener("scroll", () => {
  if (app_shop.vars.view === 1 || app_shop.vars.view === 2) return;

  const container = document.querySelector("#container");
  if (container.classList.contains("projector_page")) return;

  const bodyEl = document.querySelector("body");
  const currentScroll = window.scrollY;

  if (currentScroll < lastScrollY && currentScroll > HEADER_POINT) {
    bodyEl.classList.add("desktop-menu__scroll");
  } else {
    bodyEl.classList.remove("desktop-menu__scroll");
  }
  
  lastScrollY = currentScroll;
});