(function() {
  'use strict';

  // Mobile Navigation Toggle
  const navToggle = document.querySelector('.nav-toggle');
  const navLinks = document.querySelector('.nav-links');

  if (navToggle && navLinks) {
    navToggle.addEventListener('click', function() {
      const isExpanded = navToggle.getAttribute('aria-expanded') === 'true';
      navToggle.setAttribute('aria-expanded', !isExpanded);
      navLinks.classList.toggle('active');
    });

    // Close menu when clicking a link
    navLinks.querySelectorAll('a').forEach(function(link) {
      link.addEventListener('click', function() {
        navLinks.classList.remove('active');
        navToggle.setAttribute('aria-expanded', 'false');
      });
    });
  }

  // Smooth scroll for anchor links
  document.querySelectorAll('a[href^="#"]').forEach(function(anchor) {
    anchor.addEventListener('click', function(e) {
      e.preventDefault();
      const target = document.querySelector(this.getAttribute('href'));
      if (target) {
        const headerHeight = document.querySelector('.site-header').offsetHeight;
        const targetPosition = target.getBoundingClientRect().top + window.pageYOffset - headerHeight;
        window.scrollTo({
          top: targetPosition,
          behavior: 'smooth'
        });
      }
    });
  });

  // Intersection Observer for reveal animations
  const observerOptions = {
    root: null,
    rootMargin: '0px',
    threshold: 0.1
  };

  const revealObserver = new IntersectionObserver(function(entries) {
    entries.forEach(function(entry) {
      if (entry.isIntersecting) {
        entry.target.classList.add('revealed');
        revealObserver.unobserve(entry.target);
      }
    });
  }, observerOptions);

  // Add reveal class to elements
  const revealElements = document.querySelectorAll(
    '.category-card, .stat-card, .feature, .contact-item, .pwa-card'
  );
  
  revealElements.forEach(function(el, index) {
    el.classList.add('reveal');
    el.style.transitionDelay = (index % 4) * 0.1 + 's';
    revealObserver.observe(el);
  });

  // Counter animation for statistics
  function animateCounter(element) {
    const target = parseInt(element.getAttribute('data-count'), 10);
    if (!target) return;
    
    const duration = 2000;
    const step = target / (duration / 16);
    let current = 0;

    function update() {
      current += step;
      if (current < target) {
        element.textContent = Math.floor(current).toLocaleString('he-IL');
        requestAnimationFrame(update);
      } else {
        element.textContent = target.toLocaleString('he-IL') + '+';
      }
    }

    update();
  }

  const statNumbers = document.querySelectorAll('.stat-number[data-count], .stat-big[data-count]');
  
  const statsObserver = new IntersectionObserver(function(entries) {
    entries.forEach(function(entry) {
      if (entry.isIntersecting) {
        animateCounter(entry.target);
        statsObserver.unobserve(entry.target);
      }
    });
  }, { threshold: 0.5 });

  statNumbers.forEach(function(stat) {
    statsObserver.observe(stat);
  });

  // Form submission handling
  const orderForm = document.getElementById('orderForm');
  const formSuccess = document.getElementById('formSuccess');

  if (orderForm) {
    orderForm.addEventListener('submit', function(e) {
      e.preventDefault();
      
      // Simulate form submission
      const submitBtn = orderForm.querySelector('button[type="submit"]');
      submitBtn.disabled = true;
      submitBtn.innerHTML = '<span>שולח...</span>';
      
      setTimeout(function() {
        orderForm.style.display = 'none';
        formSuccess.hidden = false;
        formSuccess.scrollIntoView({ behavior: 'smooth', block: 'center' });
      }, 1500);
    });
  }

  const contactForm = document.getElementById('contactForm');
  
  if (contactForm) {
    contactForm.addEventListener('submit', function(e) {
      e.preventDefault();
      
      const submitBtn = contactForm.querySelector('button[type="submit"]');
      const originalText = submitBtn.textContent;
      submitBtn.disabled = true;
      submitBtn.textContent = 'שולח...';
      
      setTimeout(function() {
        contactForm.reset();
        submitBtn.disabled = false;
        submitBtn.textContent = 'נשלח בהצלחה!';
        
        setTimeout(function() {
          submitBtn.textContent = originalText;
        }, 2000);
      }, 1500);
    });
  }

  // PWA Install functionality
  let deferredPrompt;
  const installBtn = document.getElementById('installBtn');
  const installBtnMain = document.getElementById('installBtnMain');

  window.addEventListener('beforeinstallprompt', function(e) {
    e.preventDefault();
    deferredPrompt = e;
    
    if (installBtn) {
      installBtn.hidden = false;
    }
  });

  function handleInstall() {
    if (!deferredPrompt) {
      alert('האפליקציה כבר מותקנת או שהדפדפן לא תומך בהתקנה.');
      return;
    }
    
    deferredPrompt.prompt();
    
    deferredPrompt.userChoice.then(function(choiceResult) {
      if (choiceResult.outcome === 'accepted') {
        console.log('User accepted PWA install');
      }
      deferredPrompt = null;
      
      if (installBtn) installBtn.hidden = true;
    });
  }

  if (installBtn) {
    installBtn.addEventListener('click', handleInstall);
  }
  
  if (installBtnMain) {
    installBtnMain.addEventListener('click', handleInstall);
  }

  // Header scroll effect
  const header = document.querySelector('.site-header');
  let lastScrollY = window.scrollY;

  window.addEventListener('scroll', function() {
    const currentScrollY = window.scrollY;
    
    if (currentScrollY > 100) {
      header.style.boxShadow = 'var(--shadow-md)';
    } else {
      header.style.boxShadow = 'none';
    }
    
    lastScrollY = currentScrollY;
  }, { passive: true });

  // Respect reduced motion preference
  if (window.matchMedia('(prefers-reduced-motion: reduce)').matches) {
    document.querySelectorAll('.floating, .floating-delayed').forEach(function(el) {
      el.style.animation = 'none';
    });
  }

})();