document.getElementById('comb'); const ef = document.getElementById('ef'); const out = document.getElementById('out'); const badgeVal = document.getElementById('badgeVal'); const snippet = document.getElementById('snippet'); const copyBtn = document.getElementById('copy');
const defaultEF = { gasolina: 2.31, diesel: 2.68, etanol: 1.50 }; // demonstrativo comb.addEventListener('change', ()=>{ ef.value = defaultEF[comb.value] || 2.31; });
function calc(){
if(km<=0 || consumo<=0 || fator<=0){ out.textContent = 'Preencha os campos'; return; } const litros = km/consumo; const t = (litros * fator)/1000; // tCO2e const tRound = Math.round(t*100)/100; out.textContent = `Resultado: ${tRound} tCO₂e/ano`; badgeVal.textContent = tRound; badgeVal.dataset.co2e = tRound;
// Atualiza snippet const code = ` `; snippet.textContent = code;
// GA4 opcional window.dataLayer = window.dataLayer || []; window.dataLayer.push({event:'co2_calculated', co2e_est_t:tRound, fuel: comb.value, km_year: km, kml: consumo}); }
document.getElementById('calc').addEventListener('click', calc); copyBtn.addEventListener('click', ()=>{ const el = document.createElement('textarea'); el.value = snippet.textContent; document.body.appendChild(el); el.select(); document.execCommand('copy'); document.body.removeChild(el); copyBtn.textContent = 'Copiado'; setTimeout(()=>copyBtn.textContent='Copiar', 1500); });
// init calc(); })();