document.addEventListener('DOMContentLoaded', function() {
    const searchInput = document.querySelector('.search-form input[type="text"]');
    const searchIcon = document.querySelector('.search-form i');

    searchInput.addEventListener('focus', function() {
        searchIcon.style.visibility = 'visible';
    });

    searchInput.addEventListener('blur', function() {
        searchIcon.style.visibility = 'hidden';
    });
});