// Smooth scroll behavior
document.addEventListener('DOMContentLoaded', function() {
    // Add smooth scroll to all internal links
    const links = document.querySelectorAll('a[href^="#"]');
    links.forEach(link => {
        link.addEventListener('click', function(e) {
            e.preventDefault();
            const targetId = this.getAttribute('href').substring(1);
            const targetElement = document.getElementById(targetId);
            if (targetElement) {
                targetElement.scrollIntoView({ behavior: 'smooth' });
            }
        });
    });

    // Add fade-in animation on scroll
    const observerOptions = {
        threshold: 0.1,
        rootMargin: '0px 0px -50px 0px'
    };

    const observer = new IntersectionObserver(function(entries) {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                entry.target.style.opacity = '1';
                entry.target.style.transform = 'translateY(0)';
            }
        });
    }, observerOptions);

    // Observe sections for fade-in effect
    const sections = document.querySelectorAll('.features, .testimonials, .message');
    sections.forEach(section => {
        section.style.opacity = '0';
        section.style.transform = 'translateY(20px)';
        section.style.transition = 'opacity 0.6s ease, transform 0.6s ease';
        observer.observe(section);
    });

    // Observe testimonial cards
    const testimonialCards = document.querySelectorAll('.testimonial-card');
    testimonialCards.forEach((card, index) => {
        card.style.opacity = '0';
        card.style.transform = 'translateY(20px)';
        card.style.transition = `opacity 0.6s ease ${index * 0.1}s, transform 0.6s ease ${index * 0.1}s`;
        observer.observe(card);
    });
});

// Fixed button always visible
// Removed auto-hide functionality to keep button always displayed