var counterElement = document.querySelector('.card-sayı');
    var counter = 0;
    var target = 100;

    function startCount() {
      counterElement.classList.add('show');

      var interval = setInterval(function() {
        if (counter >= target) {
          clearInterval(interval);
        } else {
          counter++;
          counterElement.textContent = counter;
        }
      }, 10);
    }

    var observer = new IntersectionObserver(function(entries, observer) {
      entries.forEach(function(entry) {
        if (entry.isIntersecting) {
          startCount();
          observer.unobserve(entry.target);
        }
      });
    }, { threshold: 0.5 });

    var ortaElement = document.querySelector('.orta');
    observer.observe(ortaElement);