// Mobile Menu Toggle
document.addEventListener('DOMContentLoaded', function() {
    const navToggle = document.querySelector('.nav-toggle');
    const navMenu = document.getElementById('nav-menu');
    
    if (navToggle && navMenu) {
        navToggle.addEventListener('click', function() {
            const expanded = this.getAttribute('aria-expanded') === 'true' || false;
            this.setAttribute('aria-expanded', !expanded);
            navMenu.classList.toggle('active');
        });
    }
    
    // Close mobile menu when clicking outside
    document.addEventListener('click', function(event) {
        if (navToggle && navMenu) {
            const isClickInsideNav = navToggle.contains(event.target) || navMenu.contains(event.target);
            if (!isClickInsideNav && navMenu.classList.contains('active')) {
                navToggle.setAttribute('aria-expanded', 'false');
                navMenu.classList.remove('active');
            }
        }
    });
    
    // FAQ Accordion
    const faqItems = document.querySelectorAll('.faq-item');
    faqItems.forEach(item => {
        const question = item.querySelector('.faq-question');
        if (question) {
            question.addEventListener('click', () => {
                const isActive = item.classList.contains('active');
                // Close all items
                faqItems.forEach(i => i.classList.remove('active'));
                // Open clicked item if it wasn't active
                if (!isActive) {
                    item.classList.add('active');
                }
            });
        }
    });
    
    // Smooth scrolling for anchor links
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
        anchor.addEventListener('click', function(e) {
            const target = document.querySelector(this.getAttribute('href'));
            if (target) {
                e.preventDefault();
                target.scrollIntoView({
                    behavior: 'smooth',
                    block: 'start'
                });
            }
        });
    });
    
    // Back to top button
    const backToTopButton = document.createElement('button');
    backToTopButton.innerHTML = '▲'; // Up arrow
    backToTopButton.className = 'back-to-top';
    backToTopButton.setAttribute('aria-label', 'Back to top');
    document.body.appendChild(backToTopButton);
    
    backToTopButton.addEventListener('click', () => {
        window.scrollTo({
            top: 0,
            behavior: 'smooth'
        });
    });
    
    window.addEventListener('scroll', () => {
        if (window.pageYOffset > 300) {
            backToTopButton.classList.add('visible');
        } else {
            backToTopButton.classList.remove('visible');
        }
    });
    
    // Form submissions (if using Formspree or similar)
    const forms = document.querySelectorAll('.contact-form');
    forms.forEach(form => {
        form.addEventListener('submit', function(e) {
            // This would typically be handled by the form service
            // For now, we'll prevent default and show a message
            e.preventDefault();
            const formNote = this.querySelector('.form-note');
            if (formNote) {
                formNote.textContent = 'Thank you for your message! We will get back to you soon.';
                formNote.style.color = '#10b981';
                this.reset();
            }
        });
    });
    
    // Tab functionality for product categories
    const tabButtons = document.querySelectorAll('.category-tab');
    tabButtons.forEach(button => {
        button.addEventListener('click', () => {
            const tabSlug = button.getAttribute('aria-controls');
            const tabPanel = document.getElementById(tabSlug);
            
            // Remove active class from all tabs and panels
            tabButtons.forEach(btn => btn.classList.remove('active'));
            document.querySelectorAll('.category-panel').forEach(panel => panel.classList.remove('active'));
            
            // Add active class to clicked tab and corresponding panel
            button.classList.add('active');
            if (tabPanel) {
                tabPanel.classList.add('active');
            }
        });
    });
    
    // Header scroll effect
    const header = document.querySelector('.site-header');
    let lastScroll = 0;
    
    window.addEventListener('scroll', () => {
        const currentScroll = window.pageYOffset;
        
        if (currentScroll <= 0) {
            header.classList.remove('scroll-up');
            return;
        }
        
        if (currentScroll > lastScroll && !header.classList.contains('scroll-down')) {
            // Scrolling down
            header.classList.remove('scroll-up');
            header.classList.add('scroll-down');
        } else if (currentScroll < lastScroll && header.classList.contains('scroll-down')) {
            // Scrolling up
            header.classList.remove('scroll-down');
            header.classList.add('scroll-up');
        }
        lastScroll = currentScroll;
    });
});