(function() {
  'use strict';

  // Navigation scroll effect
  const nav = document.querySelector('.nav');

  function handleNavScroll() {
    if (window.pageYOffset > 100) {
      nav.classList.add('scrolled');
    } else {
      nav.classList.remove('scrolled');
    }
  }

  // Mobile menu toggle
  const navToggle = document.querySelector('.nav__toggle');
  const navMenu = document.querySelector('.nav__menu');

  function toggleMenu() {
    const isExpanded = navToggle.getAttribute('aria-expanded') === 'true';
    navToggle.setAttribute('aria-expanded', !isExpanded);
    navMenu.classList.toggle('active');
    document.body.style.overflow = !isExpanded ? 'hidden' : '';
    
    if (!isExpanded) {
      navToggle.setAttribute('aria-label', 'סגור תפריט ניווט');
    } else {
      navToggle.setAttribute('aria-label', 'פתח תפריט ניווט');
    }
  }

  navToggle.addEventListener('click', toggleMenu);

  // Close menu on link click
  navMenu.querySelectorAll('a').forEach(link => {
    link.addEventListener('click', () => {
      if (navMenu.classList.contains('active')) {
        toggleMenu();
      }
    });
  });

  // Close menu on escape
  document.addEventListener('keydown', (e) => {
    if (e.key === 'Escape' && navMenu.classList.contains('active')) {
      toggleMenu();
      navToggle.focus();
    }
  });

  // Trap focus in mobile menu
  navMenu.addEventListener('keydown', (e) => {
    if (!navMenu.classList.contains('active')) return;
    
    const focusable = navMenu.querySelectorAll('a');
    const first = focusable[0];
    const last = focusable[focusable.length - 1];
    
    if (e.key === 'Tab') {
      if (e.shiftKey && document.activeElement === first) {
        e.preventDefault();
        last.focus();
      } else if (!e.shiftKey && document.activeElement === last) {
        e.preventDefault();
        first.focus();
      }
    }
  });

  // Scroll reveal
  function initReveal() {
    const revealElements = document.querySelectorAll('[data-reveal]');
    const prefersReducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
    
    if (prefersReducedMotion) {
      revealElements.forEach(el => el.classList.add('revealed'));
      return;
    }

    const observer = new IntersectionObserver((entries) => {
      entries.forEach(entry => {
        if (entry.isIntersecting) {
          entry.target.classList.add('revealed');
          observer.unobserve(entry.target);
        }
      });
    }, {
      threshold: 0.1,
      rootMargin: '0px 0px -50px 0px'
    });

    revealElements.forEach(el => observer.observe(el));
  }

  // Form handling
  function initForms() {
    const forms = document.querySelectorAll('.booking__form, .contact__form');
    
    forms.forEach(form => {
      form.addEventListener('submit', (e) => {
        e.preventDefault();
        
        const btn = form.querySelector('button[type="submit"]');
        const originalText = btn.textContent;
        
        btn.textContent = 'שולח...';
        btn.disabled = true;
        btn.setAttribute('aria-busy', 'true');
        
        // Simulate form submission
        setTimeout(() => {
          btn.textContent = 'נשלח בהצלחה!';
          btn.style.background = '#4a9c6d';
          btn.setAttribute('aria-busy', 'false');
          
          // Announce to screen readers
          const announcement = document.createElement('div');
          announcement.setAttribute('role', 'status');
          announcement.setAttribute('aria-live', 'polite');
          announcement.className = 'sr-only';
          announcement.textContent = 'הטופס נשלח בהצלחה';
          form.appendChild(announcement);
          
          setTimeout(() => {
            form.reset();
            btn.textContent = originalText;
            btn.style.background = '';
            btn.disabled = false;
            announcement.remove();
          }, 2000);
        }, 1000);
      });
    });
  }

  // Set minimum date for booking
  function initDateInput() {
    const dateInput = document.querySelector('#book-date');
    if (dateInput) {
      const today = new Date();
      const tomorrow = new Date(today);
      tomorrow.setDate(tomorrow.getDate() + 1);
      dateInput.min = tomorrow.toISOString().split('T')[0];
    }
  }

  // Smooth scroll for anchor links
  function initSmoothScroll() {
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
      anchor.addEventListener('click', function(e) {
        const targetId = this.getAttribute('href');
        if (targetId === '#') return;
        
        const target = document.querySelector(targetId);
        if (target) {
          e.preventDefault();
          const navHeight = nav.offsetHeight;
          const targetPosition = target.getBoundingClientRect().top + window.pageYOffset - navHeight;
          
          window.scrollTo({
            top: targetPosition,
            behavior: 'smooth'
          });
          
          // Set focus for accessibility
          target.setAttribute('tabindex', '-1');
          target.focus({ preventScroll: true });
        }
      });
    });
  }

  // Initialize
  window.addEventListener('scroll', handleNavScroll, { passive: true });
  
  document.addEventListener('DOMContentLoaded', () => {
    handleNavScroll();
    initReveal();
    initForms();
    initDateInput();
    initSmoothScroll();
  });

})();