script.js

// Dark / Light mode toggle
const toggle = document.getElementById('theme-toggle');
const prefersDark = window.matchMedia('(prefers-color-scheme: dark)');

function setTheme(dark) {
  document.documentElement.setAttribute('data-theme', dark ? 'dark' : 'light');
  toggle.textContent = dark ? '☀️' : '🌙';
  localStorage.setItem('theme', dark ? 'dark' : 'light');
}

// Init theme
const saved = localStorage.getItem('theme');
if (saved) {
  setTheme(saved === 'dark');
} else {
  setTheme(prefersDark.matches);
}

toggle.addEventListener('click', () => {
  const isDark = document.documentElement.getAttribute('data-theme') === 'dark';
  setTheme(!isDark);
});

// Mobile hamburger
const hamburger = document.getElementById('hamburger');
const navLinks = document.getElementById('nav-links');

if (hamburger) {
  hamburger.addEventListener('click', () => {
    navLinks.classList.toggle('open');
  });

  // Close menu on link click
  navLinks.querySelectorAll('a').forEach(link => {
    link.addEventListener('click', () => {
      navLinks.classList.remove('open');
    });
  });
}