var cards = document.querySelectorAll('.card');
    var counters = [0, 0];
    var targets = [100, 200];

    function startCount(index) {
      var counterElement = cards[index].querySelector('.card-sayı');
      counterElement.classList.add('show');

      var counter = counters[index];
      var target = targets[index];

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

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

    cards.forEach(function(card) {
      observer.observe(card);
    });