// Smooth scroll for any future internal 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'
            });
        }
    });
});

// Add fade-in animation to cards on scroll
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 = '0';
            entry.target.style.transform = 'translateY(20px)';
            entry.target.style.transition = 'opacity 0.6s ease, transform 0.6s ease';

            setTimeout(() => {
                entry.target.style.opacity = '1';
                entry.target.style.transform = 'translateY(0)';
            }, 100);

            observer.unobserve(entry.target);
        }
    });
}, observerOptions);

// Observe all service cards and tech items
document.querySelectorAll('.service-card, .tech-item, .flow-step').forEach(el => {
    observer.observe(el);
});

// Easter egg: Konami code detector
let konamiCode = ['ArrowUp', 'ArrowUp', 'ArrowDown', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'ArrowLeft', 'ArrowRight', 'b', 'a'];
let konamiIndex = 0;

document.addEventListener('keydown', (e) => {
    if (e.key === konamiCode[konamiIndex]) {
        konamiIndex++;
        if (konamiIndex === konamiCode.length) {
            document.body.style.animation = 'rainbow 2s ease infinite';
            setTimeout(() => {
                document.body.style.animation = '';
                konamiIndex = 0;
            }, 5000);
        }
    } else {
        konamiIndex = 0;
    }
});

// Add CSS for rainbow animation
const style = document.createElement('style');
style.textContent = `
    @keyframes rainbow {
        0% { filter: hue-rotate(0deg); }
        100% { filter: hue-rotate(360deg); }
    }
`;
document.head.appendChild(style);

// Console message for developers
console.log('%c👋 Hello, developer!', 'font-size: 20px; color: #6366f1; font-weight: bold;');
console.log('%cInterested in the infrastructure? Check out https://git.dc.railwayka.ru', 'font-size: 14px; color: #a1a1aa;');
console.log('%cPowered by Dcape - GitOps infrastructure management', 'font-size: 12px; color: #6366f1;');