(function(){ const btn = document.getElementById('btn-rastreio'); const input = document.getElementById('codigo-rastreio'); if(!btn || !input) return; function rastrear(){ const codigo = input.value.trim().replace(/\s+/g, ''); if(!codigo){ input.focus(); return; } const url = 'https://rastreamento.correios.com.br/app/index.php?objetos=' + encodeURIComponent(codigo); window.open(url, '_blank'); } btn.addEventListener('click', rastrear); input.addEventListener('keydown', function(e){ if(e.key === 'Enter'){ e.preventDefault(); rastrear(); } }); })();