script.js

// Mobile menu toggle
const hamburger = document.querySelector('.hamburger');
const navMenu = document.querySelector('.nav-menu');

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

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

// 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) {
            const offsetTop = target.offsetTop - 70;
            window.scrollTo({
                top: offsetTop,
                behavior: 'smooth'
            });
        }
    });
});

// Navbar background on scroll
window.addEventListener('scroll', () => {
    const navbar = document.querySelector('.navbar');
    if (window.scrollY > 50) {
        navbar.style.boxShadow = '0 4px 12px rgba(0, 0, 0, 0.15)';
    } else {
        navbar.style.boxShadow = '0 4px 6px -1px rgba(0, 0, 0, 0.1)';
    }
});

// Intersection Observer for fade-in 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 all sections
document.querySelectorAll('section').forEach(section => {
    section.style.opacity = '0';
    section.style.transform = 'translateY(20px)';
    section.style.transition = 'opacity 0.6s ease, transform 0.6s ease';
    observer.observe(section);
});

// Observe skill categories
document.querySelectorAll('.skill-category').forEach((card, index) => {
    card.style.opacity = '0';
    card.style.transform = 'translateY(20px)';
    card.style.transition = `opacity 0.6s ease ${index * 0.1}s, transform 0.6s ease ${index * 0.1}s`;
    observer.observe(card);
});

// Observe project cards
document.querySelectorAll('.project-card').forEach((card, index) => {
    card.style.opacity = '0';
    card.style.transform = 'translateY(20px)';
    card.style.transition = `opacity 0.6s ease ${index * 0.1}s, transform 0.6s ease ${index * 0.1}s`;
    observer.observe(card);
});