(function() {
  'use strict';

  // Mobile Menu
  const mobileMenuToggle = document.querySelector('.mobile-menu-toggle');
  const mainNav = document.querySelector('.main-nav');

  if (mobileMenuToggle && mainNav) {
    mobileMenuToggle.addEventListener('click', function() {
      const isOpen = mainNav.classList.toggle('open');
      this.classList.toggle('open');
      this.setAttribute('aria-expanded', isOpen);
      document.body.style.overflow = isOpen ? 'hidden' : '';
    });

    mainNav.querySelectorAll('.nav-link').forEach(function(link) {
      link.addEventListener('click', function() {
        mainNav.classList.remove('open');
        mobileMenuToggle.classList.remove('open');
        mobileMenuToggle.setAttribute('aria-expanded', 'false');
        document.body.style.overflow = '';
      });
    });

    document.addEventListener('click', function(e) {
      if (mainNav.classList.contains('open') && 
          !mainNav.contains(e.target) && 
          !mobileMenuToggle.contains(e.target)) {
        mainNav.classList.remove('open');
        mobileMenuToggle.classList.remove('open');
        mobileMenuToggle.setAttribute('aria-expanded', 'false');
        document.body.style.overflow = '';
      }
    });

    document.addEventListener('keydown', function(e) {
      if (e.key === 'Escape' && mainNav.classList.contains('open')) {
        mainNav.classList.remove('open');
        mobileMenuToggle.classList.remove('open');
        mobileMenuToggle.setAttribute('aria-expanded', 'false');
        document.body.style.overflow = '';
        mobileMenuToggle.focus();
      }
    });
  }

  // Check for reduced motion preference
  const prefersReducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;

  // Scroll Reveal Animation
  const observerOptions = {
    root: null,
    rootMargin: '0px 0px -80px 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);

  if (!prefersReducedMotion) {
    document.querySelectorAll('.reveal-fade, .reveal-slide').forEach(function(el) {
      revealObserver.observe(el);
    });
  } else {
    document.querySelectorAll('.reveal-fade, .reveal-slide').forEach(function(el) {
      el.classList.add('revealed');
    });
  }

  // Count Up Animation for Stats
  function countUp(element, target, duration) {
    if (prefersReducedMotion) {
      element.textContent = target;
      return;
    }
    
    let start = 0;
    const increment = target / (duration / 16);
    const timer = setInterval(function() {
      start += increment;
      if (start >= target) {
        element.textContent = target;
        clearInterval(timer);
      } else {
        element.textContent = Math.floor(start);
      }
    }, 16);
  }

  const statsObserver = new IntersectionObserver(function(entries) {
    entries.forEach(function(entry) {
      if (entry.isIntersecting) {
        const statNumbers = entry.target.querySelectorAll('.stat-number[data-count]');
        statNumbers.forEach(function(stat) {
          const target = parseInt(stat.getAttribute('data-count'), 10);
          countUp(stat, target, 2000);
        });
        statsObserver.unobserve(entry.target);
      }
    });
  }, { threshold: 0.5 });

  const heroStats = document.querySelector('.hero-stats');
  if (heroStats) {
    statsObserver.observe(heroStats);
  }

  // Layer animation observer
  const layerObserver = new IntersectionObserver(function(entries) {
    entries.forEach(function(entry) {
      if (entry.isIntersecting) {
        entry.target.classList.add('animate');
        layerObserver.unobserve(entry.target);
      }
    });
  }, { threshold: 0.3 });

  const layersVisual = document.querySelector('.layers-visual');
  if (layersVisual && !prefersReducedMotion) {
    layerObserver.observe(layersVisual);
  }

  // Header scroll effect
  const header = document.querySelector('.site-header');
  let lastScrollY = 0;

  function updateHeader() {
    const currentScrollY = window.scrollY;
    
    if (currentScrollY > 50) {
      header.classList.add('scrolled');
    } else {
      header.classList.remove('scrolled');
    }
    
    lastScrollY = currentScrollY;
  }

  window.addEventListener('scroll', updateHeader, { passive: true });

  // 3D Tilt Effect for Cards
  if (!prefersReducedMotion) {
    document.querySelectorAll('[data-tilt]').forEach(function(card) {
      card.addEventListener('mousemove', function(e) {
        const rect = card.getBoundingClientRect();
        const x = e.clientX - rect.left;
        const y = e.clientY - rect.top;
        const centerX = rect.width / 2;
        const centerY = rect.height / 2;
        const rotateX = (y - centerY) / 20;
        const rotateY = (centerX - x) / 20;
        
        card.style.transform = `perspective(1000px) rotateX(${rotateX}deg) rotateY(${rotateY}deg) translateY(-10px)`;
      });
      
      card.addEventListener('mouseleave', function() {
        card.style.transform = 'perspective(1000px) rotateX(0) rotateY(0) translateY(0)';
      });
    });
  }

  // Parallax effect for particles
  if (!prefersReducedMotion) {
    window.addEventListener('scroll', function() {
      const particles = document.querySelectorAll('.particle');
      const scrollY = window.scrollY;
      
      particles.forEach(function(particle, index) {
        const speed = 0.05 + (index * 0.02);
        particle.style.transform = `translateY(${scrollY * speed}px)`;
      });
    }, { passive: true });
  }

  // Feature progress bars animation
  const featureObserver = new IntersectionObserver(function(entries) {
    entries.forEach(function(entry) {
      if (entry.isIntersecting) {
        entry.target.classList.add('revealed');
      }
    });
  }, { threshold: 0.5 });

  document.querySelectorAll('.tech-features li').forEach(function(li) {
    featureObserver.observe(li);
  });

  // Form handling
  const contactForm = document.querySelector('.contact-form form');
  
  if (contactForm) {
    contactForm.addEventListener('submit', function(e) {
      e.preventDefault();
      
      const requiredFields = this.querySelectorAll('[required]');
      let isValid = true;
      
      requiredFields.forEach(function(field) {
        if (!field.value.trim()) {
          isValid = false;
          field.style.borderColor = '#ef4444';
          field.style.boxShadow = '0 0 0 3px rgba(239, 68, 68, 0.15)';
        } else {
          field.style.borderColor = '';
          field.style.boxShadow = '';
        }
      });
      
      if (!isValid) {
        return;
      }
      
      const submitBtn = this.querySelector('button[type="submit"]');
      const originalText = submitBtn.textContent;
      
      submitBtn.textContent = 'שולח...';
      submitBtn.disabled = true;
      submitBtn.style.opacity = '0.7';
      
      setTimeout(function() {
        submitBtn.textContent = 'נשלח בהצלחה!';
        submitBtn.style.background = 'linear-gradient(135deg, #22c55e, #16a34a)';
        submitBtn.style.opacity = '1';
        
        setTimeout(function() {
          submitBtn.textContent = originalText;
          submitBtn.style.background = '';
          submitBtn.disabled = false;
          contactForm.reset();
        }, 2500);
      }, 1500);
    });

    contactForm.querySelectorAll('input, textarea, select').forEach(function(field) {
      field.addEventListener('input', function() {
        this.style.borderColor = '';
        this.style.boxShadow = '';
      });
    });
  }

  // Smooth scroll for anchor links
  document.querySelectorAll('a[href^="#"]').forEach(function(anchor) {
    anchor.addEventListener('click', function(e) {
      const targetId = this.getAttribute('href');
      if (targetId === '#') return;
      
      const targetElement = document.querySelector(targetId);
      if (targetElement) {
        e.preventDefault();
        targetElement.scrollIntoView({
          behavior: prefersReducedMotion ? 'auto' : 'smooth'
        });
        targetElement.setAttribute('tabindex', '-1');
        targetElement.focus();
      }
    });
  });

  // Ripple effect on buttons
  document.querySelectorAll('.btn-glow').forEach(function(btn) {
    btn.addEventListener('click', function(e) {
      const ripple = this.querySelector('.btn-ripple');
      if (ripple) {
        ripple.style.transform = 'scale(0)';
        ripple.style.opacity = '0';
        setTimeout(function() {
          ripple.style.transform = '';
          ripple.style.opacity = '';
        }, 10);
      }
    });
  });

  // Add staggered animation delay to grid items
  if (!prefersReducedMotion) {
    document.querySelectorAll('.expertise-grid .expertise-card, .products-grid .product-card, .advantages-grid .advantage-item, .industries-grid .industry-card').forEach(function(card, index) {
      card.style.transitionDelay = (index * 0.1) + 's';
    });
  }

  // Logo cards hover glow effect
  document.querySelectorAll('.client-logo-card').forEach(function(card) {
    card.addEventListener('mouseenter', function() {
      this.style.filter = 'brightness(1.1)';
    });
    card.addEventListener('mouseleave', function() {
      this.style.filter = '';
    });
  });

})();