/* ── Scroll reveal + count-up ── */
  var obs=new IntersectionObserver(function(entries){
    entries.forEach(function(e){
      if(!e.isIntersecting) return;
      e.target.classList.add('visible');
      e.target.querySelectorAll('.cu').forEach(countUp);
      obs.unobserve(e.target);
    });
  },{threshold:0.12,rootMargin:'0px 0px -30px 0px'});
  document.querySelectorAll('.reveal').forEach(function(el){ obs.observe(el); });