/* Dhakadigitalsurvey — shared front-end behavior
   - Auto-marks the active nav link based on the current filename
   - Mobile menu toggle
   - Newsletter form prevent-default
*/

(function () {
  const path = window.location.pathname.split('/').pop() || 'index.html';
  document.querySelectorAll('[data-nav]').forEach((a) => {
    const target = a.getAttribute('data-nav');
    if (target === path || (path === '' && target === 'index.html')) {
      a.setAttribute('aria-current', 'page');
    }
  });

  // Mobile menu toggle
  const toggle = document.querySelector('[data-menu-toggle]');
  const menu = document.querySelector('[data-mobile-menu]');
  if (toggle && menu) {
    toggle.addEventListener('click', () => {
      menu.classList.toggle('open');
    });
    menu.querySelectorAll('a').forEach((a) => {
      a.addEventListener('click', () => menu.classList.remove('open'));
    });
  }

  // Newsletter form (demo)
  document.querySelectorAll('form[data-newsletter]').forEach((f) => {
    f.addEventListener('submit', (e) => {
      e.preventDefault();
      const input = f.querySelector('input[type=email]');
      if (input && input.value) {
        input.value = '';
        const btn = f.querySelector('button');
        if (btn) {
          const original = btn.textContent;
          btn.textContent = 'JOINED ✓';
          setTimeout(() => (btn.textContent = original), 1800);
        }
      }
    });
  });
})();