(function() {
  'use strict';

  // Mobile Menu Toggle
  const menuToggle = document.querySelector('.menu-toggle');
  const navLinks = document.querySelector('.nav-links');
  const menuOverlay = document.querySelector('.menu-overlay');

  function closeMenu() {
    menuToggle.setAttribute('aria-expanded', 'false');
    menuToggle.setAttribute('aria-label', 'פתיחת תפריט');
    navLinks.classList.remove('is-open');
    menuOverlay.classList.remove('is-visible');
    menuOverlay.setAttribute('aria-hidden', 'true');
  }

  function openMenu() {
    menuToggle.setAttribute('aria-expanded', 'true');
    menuToggle.setAttribute('aria-label', 'סגירת תפריט');
    navLinks.classList.add('is-open');
    menuOverlay.classList.add('is-visible');
    menuOverlay.setAttribute('aria-hidden', 'false');
  }

  if (menuToggle && navLinks && menuOverlay) {
    menuToggle.addEventListener('click', function() {
      const isExpanded = menuToggle.getAttribute('aria-expanded') === 'true';
      if (isExpanded) {
        closeMenu();
      } else {
        openMenu();
      }
    });

    // Close menu when clicking overlay
    menuOverlay.addEventListener('click', closeMenu);

    // Close menu when clicking a link
    navLinks.querySelectorAll('a').forEach(function(link) {
      link.addEventListener('click', closeMenu);
    });

    // Close menu on Escape key
    document.addEventListener('keydown', function(e) {
      if (e.key === 'Escape' && navLinks.classList.contains('is-open')) {
        closeMenu();
        menuToggle.focus();
      }
    });
  }

  // Reveal on Scroll
  const prefersReducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;

  if (!prefersReducedMotion) {
    const revealElements = document.querySelectorAll('.reveal');

    const revealObserver = new IntersectionObserver(function(entries) {
      entries.forEach(function(entry) {
        if (entry.isIntersecting) {
          entry.target.classList.add('is-visible');
          revealObserver.unobserve(entry.target);
        }
      });
    }, {
      root: null,
      rootMargin: '0px 0px -60px 0px',
      threshold: 0.1
    });

    revealElements.forEach(function(el) {
      revealObserver.observe(el);
    });
  } else {
    // Show all elements immediately if reduced motion is preferred
    document.querySelectorAll('.reveal').forEach(function(el) {
      el.classList.add('is-visible');
    });
  }

  // Smooth scroll for anchor links (fallback for browsers without CSS scroll-behavior)
  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',
          block: 'start'
        });
      }
    });
  });

  // Header shadow on scroll
  const header = document.querySelector('.header');

  if (header) {
    let ticking = false;
    
    window.addEventListener('scroll', function() {
      if (!ticking) {
        window.requestAnimationFrame(function() {
          if (window.pageYOffset > 50) {
            header.style.boxShadow = '0 2px 20px rgba(61, 50, 41, 0.1)';
          } else {
            header.style.boxShadow = 'none';
          }
          ticking = false;
        });
        ticking = true;
      }
    }, { passive: true });
  }

})();