/*
RSK World
Founder: Molla Samser
Designer & Tester: Rima Khatun
Email: help@rskworld.in
Phone: +91 93305 39277
Address: Nutanhat, Mongolkote, Purba Burdwan, West Bengal, India, 713147
Website: https://rskworld.in/
*/

// Smooth scroll for navigation links
document.addEventListener('DOMContentLoaded', function() {
    // Add smooth scrolling to all anchor links
    const links = document.querySelectorAll('a[href^="#"]');
    
    links.forEach(link => {
        link.addEventListener('click', function(e) {
            const href = this.getAttribute('href');
            if (href !== '#' && href.length > 1) {
                e.preventDefault();
                const target = document.querySelector(href);
                if (target) {
                    target.scrollIntoView({
                        behavior: 'smooth',
                        block: 'start'
                    });
                }
            }
        });
    });

    // Add 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 all cards and sections (except installation section which should always be visible)
    const animatedElements = document.querySelectorAll('.card:not(#installation .card), section:not(#installation) > .container');
    animatedElements.forEach(el => {
        // Skip installation section
        if (el.closest('#installation')) {
            return;
        }
        el.style.opacity = '0';
        el.style.transform = 'translateY(20px)';
        el.style.transition = 'opacity 0.6s ease, transform 0.6s ease';
        observer.observe(el);
    });
    
    // Ensure installation section is always visible
    const installationSection = document.getElementById('installation');
    if (installationSection) {
        installationSection.style.opacity = '1';
        installationSection.style.visibility = 'visible';
        installationSection.style.display = 'block';
        const installationContainer = installationSection.querySelector('.container');
        if (installationContainer) {
            installationContainer.style.opacity = '1';
            installationContainer.style.visibility = 'visible';
            installationContainer.style.display = 'block';
        }
    }

    // Navbar background on scroll
    const navbar = document.querySelector('.navbar');
    window.addEventListener('scroll', function() {
        if (window.scrollY > 50) {
            navbar.style.backgroundColor = 'rgba(33, 37, 41, 0.95)';
            navbar.style.backdropFilter = 'blur(10px)';
        } else {
            navbar.style.backgroundColor = '#212529';
            navbar.style.backdropFilter = 'none';
        }
    });

    // Download button click tracking
    const downloadBtn = document.querySelector('a[href*="sports-analysis.zip"]');
    if (downloadBtn) {
        downloadBtn.addEventListener('click', function() {
            console.log('Download initiated for Sports Analysis Dataset');
            // You can add analytics tracking here
        });
    }
});

// Add loading animation
window.addEventListener('load', function() {
    document.body.style.opacity = '0';
    setTimeout(() => {
        document.body.style.transition = 'opacity 0.5s ease';
        document.body.style.opacity = '1';
    }, 100);
});