document.addEventListener('wpcf7mailsent', function (event) {
var inputs = event.detail.inputs;
function getValue(name) {
var field = inputs.find(input => input.name === name);
return field ? field.value : '';
}
var email = getValue('your-email');
var phone = getValue('your-phone');
var firstName = getValue('first-name');
var lastName = getValue('last-name');
if (email) sessionStorage.setItem('ec_email', email);
if (phone) sessionStorage.setItem('ec_phone', phone);
if (firstName) sessionStorage.setItem('ec_first_name', firstName);
if (lastName) sessionStorage.setItem('ec_last_name', lastName);
}, false);