// SRT Master JavaScript functionality

document.addEventListener('DOMContentLoaded', function() {
    // Initialize Feather Icons
    feather.replace();
    
    // Add animation to feature cards on scroll
    const featureCards = document.querySelectorAll('.feature-card');
    
    const observer = new IntersectionObserver((entries) => {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                entry.target.classList.add('animate-fade-in-up');
            }
        });
    }, { threshold: 0.1 });
    
    featureCards.forEach(card => {
        observer.observe(card);
    });
    
    // Terminal animation
    const terminalLines = document.querySelectorAll('.terminal-line');
    if (terminalLines.length > 0) {
        terminalLines.forEach((line, index) => {
            setTimeout(() => {
                line.classList.add('opacity-100');
            }, 300 * index);
        });
    }
    
    // Smooth scrolling for anchor links
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
        anchor.addEventListener('click', function(e) {
            e.preventDefault();
            document.querySelector(this.getAttribute('href')).scrollIntoView({
                behavior: 'smooth'
            });
        });
    });
    
    // Form submission handling (if any forms exist)
    const forms = document.querySelectorAll('form');
    forms.forEach(form => {
        form.addEventListener('submit', function(e) {
            e.preventDefault();
            // Add form handling logic here
            console.log('Form submitted');
        });
    });
});

// Animation utility functions
function fadeInUp(element) {
    element.style.opacity = '0';
    element.style.transform = 'translateY(20px)';
    
    setTimeout(() => {
        element.style.transition = 'opacity 0.6s ease, transform 0.6s ease';
        element.style.opacity = '1';
        element.style.transform = 'translateY(0)';
    }, 100);
}

// Add to top button
window.addEventListener('scroll', function() {
    const backToTop = document.getElementById('backToTop');
    if (backToTop) {
        if (window.pageYOffset > 300) {
            backToTop.classList.remove('opacity-0', 'invisible');
            backToTop.classList.add('opacity-100', 'visible');
        } else {
            backToTop.classList.add('opacity-0', 'invisible');
            backToTop.classList.remove('opacity-100', 'visible');
        }
    }
});

// Add back to top button dynamically
function addBackToTopButton() {
    const backToTop = document.createElement('button');
    backToTop.id = 'backToTop';
    backToTop.innerHTML = '<i data-feather="arrow-up"></i>';
    backToTop.className = 'fixed bottom-6 right-6 bg-indigo-600 text-white p-3 rounded-full shadow-lg opacity-0 invisible transition-all duration-300 hover:bg-indigo-700';
    document.body.appendChild(backToTop);
    
    backToTop.addEventListener('click', () => {
        window.scrollTo({
            top: 0,
            behavior: 'smooth'
        });
    });
    
    feather.replace();
}

// Initialize back to top button
document.addEventListener('DOMContentLoaded', addBackToTopButton);