(function(){
  try {
    var s = document.currentScript;
    var siteId = s && s.getAttribute('data-site');
    if (!siteId) return;
    var KEY = 'pl_vc';
    var vc = null;
    try { vc = localStorage.getItem(KEY); } catch (e) {}
    if (!vc) {
      vc = 'vc_' + Math.random().toString(36).slice(2) + Date.now().toString(36);
      try { localStorage.setItem(KEY, vc); } catch (e) {}
    }
    var q = new URLSearchParams(location.search);
    var utm = {};
    ['utm_campaign','utm_source','utm_medium','utm_content','utm_term'].forEach(function(k){
      var v = q.get(k); if (v) utm[k.replace('utm_','')] = v;
    });
    var body = JSON.stringify({
      site_id: siteId,
      url: location.pathname + location.search,
      utm: utm,
      visitor_cookie: vc
    });
    var url = "https://api.pulseleads.ai/api/intent/hit";
    if (navigator.sendBeacon) {
      navigator.sendBeacon(url, new Blob([body], { type: 'text/plain;charset=UTF-8' }));
    } else {
      fetch(url, { method: 'POST', headers: { 'content-type': 'text/plain;charset=UTF-8' },
                   body: body, keepalive: true });
    }
  } catch (e) {}
})();