var lastScroll = 0;
    var isScrolled = false;
    window.addEventListener("scroll", function () {
        var topHeader = document.querySelector(".header");
        var topStickyShare = document.querySelector(".sticky-share");
        var currentScroll =
            window.pageYOffset ||
            document.documentElement.scrollTop ||
            document.body.scrollTop ||
            0;
        var scrollDirection = currentScroll < lastScroll;
        var shouldToggle = isScrolled && scrollDirection;
        isScrolled = currentScroll > 65;
        topHeader.classList.toggle("active", shouldToggle);
        topStickyShare.classList.toggle("sticky-share-offset", shouldToggle);
        lastScroll = currentScroll;
    });