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document.addEventListener('DOMContentLoaded', function() {
const filterButtons = document.querySelectorAll('.filter-btn');
const contentItems = document.querySelectorAll('.content-item');
filterButtons.forEach(button => {
button.addEventListener('click', function() {
const filter = this.getAttribute('data-filter');
// Remove active class from all buttons
filterButtons.forEach(btn => btn.classList.remove('active'));
// Add active class to clicked button
this.classList.add('active');
// Filter content items with smooth animation
contentItems.forEach(item => {
const category = item.getAttribute('data-category');
if (filter === 'all' || category === filter) {
item.classList.remove('hidden');
} else {
item.classList.add('hidden');
}
});
});
});
});
