script.js

// Mobile Navigation 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 on a nav link
navLinks.forEach(link => {
    link.addEventListener('click', () => {
        hamburger.classList.remove('active');
        navMenu.classList.remove('active');
    });
});

// Smooth Scrolling
document.querySelectorAll('a[href^="#"]').forEach(anchor => {
    anchor.addEventListener('click', function (e) {
        e.preventDefault();
        const target = document.querySelector(this.getAttribute('href'));
        if (target) {
            const offsetTop = target.offsetTop - 70;
            window.scrollTo({
                top: offsetTop,
                behavior: 'smooth'
            });
        }
    });
});

// Combined scroll event handler for better performance
window.addEventListener('scroll', () => {
    const navbar = document.querySelector('.navbar');
    
    // Navbar background change on scroll
    if (window.scrollY > 50) {
        navbar.style.background = 'rgba(255, 255, 255, 0.95)';
        navbar.style.backdropFilter = 'blur(10px)';
    } else {
        navbar.style.background = '#ffffff';
        navbar.style.backdropFilter = 'none';
    }
    
    // Add active class to navigation based on scroll position
    let current = '';
    const sections = document.querySelectorAll('section');
    
    sections.forEach(section => {
        const sectionTop = section.offsetTop;
        const sectionHeight = section.clientHeight;
        if (window.pageYOffset >= (sectionTop - 100)) {
            current = section.getAttribute('id');
        }
    });

    navLinks.forEach(link => {
        link.classList.remove('active');
        if (link.getAttribute('href').slice(1) === current) {
            link.classList.add('active');
        }
    });
});

// Scroll Reveal Animation
const observerOptions = {
    threshold: 0.1,
    rootMargin: '0px 0px -100px 0px'
};

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

// Observe skill cards
document.querySelectorAll('.skill-card').forEach((card, index) => {
    card.style.transitionDelay = `${index * 0.1}s`;
    observer.observe(card);
});

// Observe project cards
document.querySelectorAll('.project-card').forEach((card, index) => {
    card.style.transitionDelay = `${index * 0.1}s`;
    observer.observe(card);
});

// Console welcome message
console.log('%cWelcome to my Portfolio!', 'color: #4f46e5; font-size: 20px; font-weight: bold;');
console.log('%cInterested in the code? Check out the repository!', 'color: #06b6d4; font-size: 14px;');