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document.addEventListener('DOMContentLoaded', () => {
  // Espera a que todo cargue (incluido Bricks)
  window.addEventListener('load', () => {
    setTimeout(() => {
      const headerEl = document.getElementById('brx-header');
      const targetEls = Array.from(document.querySelectorAll('.fb-hide-on-scroll'));

      if (!headerEl || !targetEls.length) return;

      let headerHeight = 0;
      let addThreshold = 0;
      let removeThreshold = 0;
      let hidden = false;
      let ticking = false;

      function updateHeights() {
        headerHeight = headerEl.getBoundingClientRect().height;
        addThreshold = Math.ceil(headerHeight) + 1;
        removeThreshold = Math.max(0, Math.floor(headerHeight) - 6);
      }

      function applyHiddenClass(shouldHide) {
        targetEls.forEach(el => {
          el.classList.toggle('fb-hide', shouldHide);
        });
      }

      function onScrollRaf() {
        const scrollY = window.scrollY || window.pageYOffset;

        if (!hidden && scrollY > addThreshold) {
          hidden = true;
          applyHiddenClass(true);
        } else if (hidden && scrollY < removeThreshold) {
          hidden = false;
          applyHiddenClass(false);
        }
        ticking = false;
      }

      function onScroll() {
        if (!ticking) {
          ticking = true;
          requestAnimationFrame(onScrollRaf);
        }
      }

      updateHeights();
      window.addEventListener('scroll', onScroll, { passive: true });

      window.addEventListener('resize', () => {
        updateHeights();
        onScrollRaf();
      });

      if (typeof ResizeObserver !== 'undefined') {
        const ro = new ResizeObserver(() => {
          updateHeights();
          onScrollRaf();
        });
        ro.observe(headerEl);
      }

      onScrollRaf();
    }, 400); // <-- inicia 1 segundo después de la carga completa
  });
});

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Discover the new set of templates, the difference with FB 1.0 is that FB 2.0 is component-based, keeps consistency and is more accessible without sacrificing creativity. New templates will be released every week.

You can use FB 1.0 and FB 2.0 at the same time without any problems.