Mini Shell

document.addEventListener('DOMContentLoaded', () => {
    // Intersection Observer for fade-in animations
    const observerOptions = {
        threshold: 0.2,
        rootMargin: '0px 0px -50px 0px'
    };

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

    // Observe all elements with fade-in class
    document.querySelectorAll('.fade-in').forEach(el => observer.observe(el));

    // Smooth scroll 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'
                });
            }
        });
    });

    // Parallax effect for hero section
    const hero = document.querySelector('.hero');
    window.addEventListener('scroll', () => {
        const scrolled = window.pageYOffset;
        if (hero) {
            hero.style.backgroundPositionY = `${scrolled * 0.5}px`;
        }
    });

    // Add air particles dynamically to multiple sections
    const addAirParticles = (section, count, isReverse = false) => {
        if (section) {
            for (let i = 0; i < count; i++) {
                const particle = document.createElement('div');
                
                // Randomly assign classes for variety
                const sizeClasses = ['small', 'medium', 'large'];
                const sizeClass = sizeClasses[Math.floor(Math.random() * sizeClasses.length)];
                
                // Randomly make some particles blue
                const isBlue = Math.random() > 0.6;
                
                particle.className = `air-particle ${sizeClass}${isBlue ? ' blue' : ''}`;
                
                // Set random width and height based on size class
                let size;
                if (sizeClass === 'small') size = Math.random() * 3 + 3;
                else if (sizeClass === 'medium') size = Math.random() * 4 + 7;
                else size = Math.random() * 5 + 12;
                
                particle.style.width = `${size}px`;
                particle.style.height = particle.style.width;
                particle.style.left = `${Math.random() * 100}%`;
                
                // Set animation properties
                particle.style.animationName = isReverse ? 'floatReverse' : 'float';
                particle.style.animationDuration = `${Math.random() * 15 + 10}s`;
                particle.style.animationDelay = `${Math.random() * 8}s`;
                
                section.appendChild(particle);
            }
        }
    };
    
    // Add particles to hero section
    const heroSection = document.querySelector('.hero');
    addAirParticles(heroSection, 20);
    
    // Add particles to services section
    const servicesSection = document.querySelector('.services');
    addAirParticles(servicesSection, 12, true);
    
    // Add particles to benefits section
    const benefitsSection = document.querySelector('.benefits');
    addAirParticles(benefitsSection, 15);
    
    // Add particles to CTA section
    const ctaSection = document.querySelector('.cta');
    addAirParticles(ctaSection, 10, true);
    
    // Add particles to footer section
    const footerSection = document.querySelector('footer');
    if (footerSection) {
        const footerAirFlowContainer = document.querySelector('.footer-air-flow-container');
        if (footerAirFlowContainer) {
            for (let i = 0; i < 15; i++) {
                const particle = document.createElement('div');
                
                // Randomly assign classes for variety
                const sizeClasses = ['small', 'medium', 'large'];
                const sizeClass = sizeClasses[Math.floor(Math.random() * sizeClasses.length)];
                
                // Randomly make some particles blue
                const isBlue = Math.random() > 0.6;
                
                particle.className = `footer-air-particle ${sizeClass}${isBlue ? ' blue' : ''}`;
                
                // Set random width and height based on size class
                let size;
                if (sizeClass === 'small') size = Math.random() * 3 + 3;
                else if (sizeClass === 'medium') size = Math.random() * 4 + 7;
                else size = Math.random() * 5 + 12;
                
                particle.style.width = `${size}px`;
                particle.style.height = particle.style.width;
                particle.style.left = `${Math.random() * 100}%`;
                
                // Set animation properties
                particle.style.animationDuration = `${Math.random() * 15 + 10}s`;
                particle.style.animationDelay = `${Math.random() * 8}s`;
                
                footerAirFlowContainer.appendChild(particle);
            }
        }
    }
}
});