/**
 * Theme switching utility (shared across all pages)
 */
(function() {
  'use strict';

  // Apply saved theme on load
  const savedTheme = localStorage.getItem('theme') || 'light';
  if (savedTheme === 'dark') {
    document.documentElement.classList.add('dark');
  }

  window.toggleTheme = function() {
    const isDark = document.documentElement.classList.toggle('dark');
    localStorage.setItem('theme', isDark ? 'dark' : 'light');

    // Update theme icon if present
    const themeIcon = document.getElementById('themeIcon');
    if (themeIcon) {
      themeIcon.textContent = isDark ? '\u2600\uFE0F' : '\uD83C\uDF19';
    }
  };
})();