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

// Navbar background on scroll
window.addEventListener('scroll', () => {
    const navbar = document.querySelector('.navbar');
    if (window.scrollY > 50) {
        navbar.style.background = 'rgba(255, 255, 255, 0.98)';
    } else {
        navbar.style.background = 'rgba(255, 255, 255, 0.95)';
    }
});

// Intersection Observer for animations
const observerOptions = {
    threshold: 0.1,
    rootMargin: '0px 0px -50px 0px'
};

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

// Observe elements for animation
document.querySelectorAll('.mission-item, .team-member, .timeline-item').forEach(el => {
    el.style.opacity = '0';
    el.style.transform = 'translateY(30px)';
    el.style.transition = 'opacity 0.6s ease, transform 0.6s ease';
    observer.observe(el);
});

// Animate stats counter
const animateStats = () => {
    const statNumbers = document.querySelectorAll('.stat-number');
    const targets = ['10,000+', '500K+', '50+', '99.9%'];

    statNumbers.forEach((stat, index) => {
        const target = targets[index];
        let current = 0;
        const increment = target.includes('K') ? 5000 : target.includes('%') ? 1 : target.includes('+') ? 50 : 1;
        const max = target.includes('K') ? 500000 : target.includes('%') ? 99.9 : target.includes('10,000') ? 10000 : 50;

        const updateStat = () => {
            if (current < max) {
                current += increment;
                if (target.includes('K')) {
                    stat.textContent = Math.floor(current / 1000) + 'K+';
                } else if (target.includes('%')) {
                    stat.textContent = (current / 10).toFixed(1) + '%';
                } else if (target.includes('10,000')) {
                    stat.textContent = current.toLocaleString() + '+';
                } else {
                    stat.textContent = current + '+';
                }
                setTimeout(updateStat, 50);
            } else {
                stat.textContent = target;
            }
        };

        setTimeout(updateStat, 500 + (index * 200));
    });
};

// Trigger stats animation when stats section is visible
const statsObserver = new IntersectionObserver((entries) => {
    entries.forEach(entry => {
        if (entry.isIntersecting) {
            animateStats();
            statsObserver.unobserve(entry.target);
        }
    });
});

const statsSection = document.querySelector('.stats');
if (statsSection) {
    statsObserver.observe(statsSection);
}

// Button click handlers
document.querySelectorAll('.btn').forEach(btn => {
    btn.addEventListener('click', (e) => {
        const buttonText = btn.textContent.toLowerCase();

        if (buttonText.includes('trial') || buttonText.includes('start')) {
            alert('Starting your free trial!\n\nThis would redirect to the registration page.');
        } else if (buttonText.includes('positions') || buttonText.includes('careers')) {
            alert('Opening careers page...\n\nThis would show available job positions.');
        } else if (buttonText.includes('culture')) {
            alert('Learning about our culture...\n\nThis would show company culture information.');
        }
    });
});

// Timeline animation on scroll
const timelineObserver = new IntersectionObserver((entries) => {
    entries.forEach(entry => {
        if (entry.isIntersecting) {
            entry.target.style.opacity = '1';
            entry.target.style.transform = 'translateX(0)';
        }
    });
}, { threshold: 0.3 });

document.querySelectorAll('.timeline-item').forEach((item, index) => {
    item.style.opacity = '0';
    item.style.transform = 'translateX(-30px)';
    item.style.transition = `opacity 0.6s ease ${index * 0.2}s, transform 0.6s ease ${index * 0.2}s`;
    timelineObserver.observe(item);
});

// Hero section animation on load
window.addEventListener('load', () => {
    const heroTitle = document.querySelector('.hero-title');
    const heroSubtitle = document.querySelector('.hero-subtitle');

    [heroTitle, heroSubtitle].forEach((element, index) => {
        if (element) {
            element.style.opacity = '0';
            element.style.transform = 'translateY(30px)';
            element.style.transition = 'opacity 0.8s ease, transform 0.8s ease';

            setTimeout(() => {
                element.style.opacity = '1';
                element.style.transform = 'translateY(0)';
            }, 300 + (index * 200));
        }
    });
});