// Main JavaScript file for NanoMatter Technologies

document.addEventListener('DOMContentLoaded', function() {
    // Initialize all components and animations
    initScrollAnimations();
    initFormHandling();
});

function initScrollAnimations() {
    // Add intersection observer for scroll animations
    const observerOptions = {
        threshold: 0.1,
        rootMargin: '0px 0px -100px 0px'
    };

    const observer = new IntersectionObserver((entries) => {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                entry.target.classList.add('animate-in');
            }
        });
    }, observerOptions);

    // Observe all sections for animation
    document.querySelectorAll('section').forEach(section => {
        observer.observe(section);
    });
}

function initFormHandling() {
    const contactForm = document.querySelector('#contact form');
    if (contactForm) {
        contactForm.addEventListener('submit', function(e) {
            e.preventDefault();
            // Simple form validation
            const inputs = contactForm.querySelectorAll('input, textarea');
            let isValid = true;
            
            inputs.forEach(input => {
                if (!input.value.trim()) {
                    isValid = false;
                    input.style.borderColor = '#ef4444';
                } else {
                    input.style.borderColor = '#d1d5db';
                }
            });
            
            if (isValid) {
                // Show success message (in a real app, this would send to server)
                alert('Thank you for your message! We will get back to you soon.');
                contactForm.reset();
            } else {
                alert('Please fill in all fields.');
            }
        });
    }
}

// Smooth scrolling for anchor links
document.querySelectorAll('a[href^="#"]').forEach(anchor => {
    anchor.addEventListener('click', function (e) {
        e.preventDefault();
        const target = document.querySelector(this.getAttribute('href'));
        if (target) {
            window.scrollTo({
                top: target.offsetTop - 80,
                behavior: 'smooth'
            });
        }
    });
});

// Navbar scroll effect
window.addEventListener('scroll', function() {
    const navbar = document.querySelector('custom-navbar');
    if (navbar) {
        const navShadow = navbar.shadowRoot.querySelector('nav');
        if (window.scrollY > 100) {
                navShadow.style.boxShadow = '0 4px 6px -1px rgba(0, 0, 0, 0.1)';
            } else {
                navShadow.style.boxShadow = 'none';
            }
        });
    }
}