:root {
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #172033;
  background: #f5f7fb;
  line-height: 1.5;
}
* { box-sizing: border-box; }
body { margin: 0; }
button, input { font: inherit; }
.topo {
  display: flex; justify-content: space-between; gap: 1rem; align-items: center;
  padding: 2rem max(1.25rem, calc((100vw - 1180px) / 2));
  background: white; border-bottom: 1px solid #e3e8f0;
}
.topo h1, .section-heading h2, .carrinho h2 { margin: .1rem 0 .35rem; }
.topo p { margin: 0; color: #566178; }
.eyebrow { margin: 0; font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; color: #2457d6; }
.versao { white-space: nowrap; padding: .4rem .7rem; border-radius: 999px; background: #eef3ff; color: #2457d6; font-size: .82rem; font-weight: 700; }
.layout { width: min(1180px, calc(100% - 2rem)); margin: 2rem auto; display: grid; grid-template-columns: 1fr 360px; gap: 2rem; align-items: start; }
.section-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: end; margin-bottom: 1rem; }
.produtos { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1rem; }
.produto-card, .carrinho { background: white; border: 1px solid #e1e7f0; border-radius: 18px; box-shadow: 0 10px 30px rgba(20,33,61,.05); }
.produto-card { padding: 1.15rem; }
.produto-topo { display:flex; justify-content:space-between; gap:1rem; }
.produto-topo h3 { margin: 0 0 .2rem; }
.estoque, .hint { margin: 0; color:#6a7489; font-size:.9rem; }
.preco { color:#2457d6; }
.produto-card label, .carrinho label { display:grid; gap:.35rem; margin-top:1rem; font-size:.88rem; font-weight:700; }
input { width:100%; border:1px solid #cfd7e5; border-radius:10px; padding:.7rem .8rem; background:white; }
button { border:0; border-radius:10px; padding:.72rem .9rem; font-weight:800; cursor:pointer; }
.primary { background:#2457d6; color:white; }
.secondary { background:#172033; color:white; }
.ghost { background:white; border:1px solid #d8dfeb; color:#38445c; }
.produto-card .adicionar { width:100%; margin-top:.8rem; }
.carrinho { padding:1.25rem; position:sticky; top:1rem; }
.itens-vazios { color:#6a7489; padding:1rem 0; }
.item-carrinho { display:flex; justify-content:space-between; gap:.75rem; padding:.65rem 0; border-bottom:1px solid #edf0f5; }
.item-carrinho small { display:block; color:#778196; }
.remover { background:transparent; color:#b42318; padding:.25rem; }
.cupom-linha { display:grid; grid-template-columns:1fr auto; gap:.5rem; }
.totais { margin:1.2rem 0; }
.totais div { display:flex; justify-content:space-between; gap:1rem; padding:.35rem 0; }
.totais dt, .totais dd { margin:0; }
.totais .total { border-top:1px solid #dfe5ee; margin-top:.45rem; padding-top:.75rem; font-weight:900; font-size:1.12rem; }
.carrinho > .primary { width:100%; }
.mensagem { min-height:1.5rem; margin:.8rem 0 0; font-weight:700; }
.ok { color:#067647; }
.erro { color:#b42318; }
@media (max-width: 820px) {
  .topo { align-items:flex-start; flex-direction:column; }
  .layout { grid-template-columns:1fr; }
  .carrinho { position:static; }
}
@media (max-width: 560px) {
  .produtos { grid-template-columns:1fr; }
  .section-heading { align-items:flex-start; flex-direction:column; }
}