script.js

// Mobile Menu Toggle
const hamburger = document.querySelector('.hamburger');
const navMenu = document.querySelector('.nav-menu');
const navLinks = document.querySelectorAll('.nav-link');

hamburger.addEventListener('click', () => {
    hamburger.classList.toggle('active');
    navMenu.classList.toggle('active');
});

// Close mobile menu when clicking a nav link
navLinks.forEach(link => {
    link.addEventListener('click', () => {
        hamburger.classList.remove('active');
        navMenu.classList.remove('active');
    });
});

// Close mobile menu when clicking outside
document.addEventListener('click', (e) => {
    if (!hamburger.contains(e.target) && !navMenu.contains(e.target)) {
        hamburger.classList.remove('active');
        navMenu.classList.remove('active');
    }
});

// Highlight active section in navigation
const sections = document.querySelectorAll('section[id]');

function highlightNavigation() {
    const scrollY = window.pageYOffset;

    sections.forEach(section => {
        const sectionHeight = section.offsetHeight;
        const sectionTop = section.offsetTop - 100;
        const sectionId = section.getAttribute('id');
        const correspondingLink = document.querySelector(`.nav-link[href="#${sectionId}"]`);

        if (scrollY > sectionTop && scrollY <= sectionTop + sectionHeight) {
            correspondingLink?.classList.add('active');
        } else {
            correspondingLink?.classList.remove('active');
        }
    });
}

window.addEventListener('scroll', highlightNavigation);

// Smooth scroll for browsers that don't support CSS scroll-behavior
navLinks.forEach(link => {
    link.addEventListener('click', (e) => {
        const targetId = link.getAttribute('href');

        // Only handle internal links
        if (targetId.startsWith('#')) {
            e.preventDefault();
            const targetSection = document.querySelector(targetId);

            if (targetSection) {
                const offsetTop = targetSection.offsetTop - 80; // Account for fixed navbar

                window.scrollTo({
                    top: offsetTop,
                    behavior: 'smooth'
                });
            }
        }
    });
});

// Add scroll animation for elements
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 project cards and skill tags for animation
document.addEventListener('DOMContentLoaded', () => {
    // Set initial state for animated elements
    const animatedElements = document.querySelectorAll('.project-card, .skill-tag');
    animatedElements.forEach(el => {
        el.style.opacity = '0';
        el.style.transform = 'translateY(20px)';
        el.style.transition = 'opacity 0.6s ease, transform 0.6s ease';
        observer.observe(el);
    });
});

// Navbar background on scroll
const navbar = document.querySelector('.navbar');
window.addEventListener('scroll', () => {
    if (window.scrollY > 50) {
        navbar.style.boxShadow = '0 4px 12px rgba(0, 0, 0, 0.1)';
    } else {
        navbar.style.boxShadow = '0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06)';
    }
});