:root {
  --marrom: #6b4226;
  --creme: #f6ede1;
  --verde: #2e7d32;
  --vermelho: #c0392b;
  --borda: #d9c7b0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--creme);
  color: #2b2118;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--marrom);
  color: #fff;
  padding: 12px 20px;
  flex-wrap: wrap;
}

.topnav-titulo {
  font-weight: bold;
  margin-right: auto;
  font-size: 1.1rem;
}

.topnav a {
  color: #fff;
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
}

.topnav a:hover { background: rgba(255,255,255,.15); }
.topnav a.sair { background: var(--vermelho); }

.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.login-box {
  background: #fff;
  padding: 32px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 280px;
}

.login-box input {
  padding: 10px;
  font-size: 1rem;
  border: 1px solid var(--borda);
  border-radius: 6px;
}

.login-box button {
  padding: 10px;
  font-size: 1rem;
  background: var(--marrom);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.erro { color: var(--vermelho); font-size: .9rem; margin: 0; }

.layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 20px;
  padding: 20px;
}

.catalogo h2 {
  margin: 20px 0 8px;
  color: var(--marrom);
  border-bottom: 2px solid var(--borda);
  padding-bottom: 4px;
}

.grid-itens {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

.item-btn {
  background: #fff;
  border: 1px solid var(--borda);
  border-radius: 10px;
  padding: 14px 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
  font-size: .95rem;
  min-height: 70px;
}

.item-btn:active { background: #ede0cd; }
.item-preco { font-weight: bold; color: var(--verde); }

.carrinho {
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  height: fit-content;
  position: sticky;
  top: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
}

.carrinho-lista { display: flex; flex-direction: column; gap: 6px; max-height: 260px; overflow-y: auto; }

.carrinho-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  font-size: .9rem;
  border-bottom: 1px solid #eee;
  padding-bottom: 6px;
}

.carrinho-item .qtd-controles { display: flex; align-items: center; gap: 6px; }
.carrinho-item button {
  width: 26px; height: 26px;
  border: 1px solid var(--borda);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
}

.carrinho-total {
  font-size: 1.2rem;
  font-weight: bold;
  text-align: right;
  color: var(--marrom);
}

.carrinho label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: .9rem;
}

.carrinho input[type=text], .carrinho textarea {
  padding: 8px;
  border: 1px solid var(--borda);
  border-radius: 6px;
  font-size: .95rem;
}

.checkbox { flex-direction: row !important; align-items: center; gap: 8px !important; }

.campos-nf { display: flex; flex-direction: column; gap: 8px; }
.tipo-nf { display: flex; gap: 16px; }
.hidden { display: none !important; }

.btn-finalizar {
  padding: 14px;
  background: var(--verde);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1.05rem;
  font-weight: bold;
  cursor: pointer;
}

.pagina { padding: 20px; max-width: 1000px; margin: 0 auto; }

.lista-nf { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }

.nf-card {
  background: #fff;
  border-radius: 8px;
  padding: 10px 14px;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
}

.nf-card summary {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-weight: bold;
  color: var(--marrom);
  list-style: none;
}

.nf-card summary::-webkit-details-marker { display: none; }

.nf-dados {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid #eee;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: .92rem;
}

.nf-itens { margin: 6px 0; }

.tabela-mini {
  width: 100%;
  border-collapse: collapse;
  margin-top: 4px;
  font-size: .88rem;
}

.tabela-mini td {
  padding: 3px 6px 3px 0;
  border-bottom: 1px dashed #eee;
}

.tabela-mini td:last-child,
.tabela-mini td:nth-child(2) {
  text-align: right;
}

.form-item {
  background: #fff;
  padding: 16px;
  border-radius: 10px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 20px;
}

.form-item label { display: flex; flex-direction: column; gap: 4px; font-size: .9rem; }
.form-item input { padding: 8px; border: 1px solid var(--borda); border-radius: 6px; }

.form-item button {
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  background: var(--marrom);
  color: #fff;
  cursor: pointer;
}

.form-item button.secundario { background: #999; }

.tabela {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
}

.tabela th, .tabela td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid #eee;
  font-size: .92rem;
}

.tabela th { background: var(--marrom); color: #fff; }
.linha-inativa { opacity: .5; }

.filtro-data { display: flex; gap: 10px; align-items: end; margin-bottom: 16px; }
.filtro-data input { padding: 8px; border: 1px solid var(--borda); border-radius: 6px; }
.filtro-data button { padding: 8px 14px; border: none; border-radius: 6px; background: var(--marrom); color: #fff; cursor: pointer; }

.resumo-cards { display: flex; gap: 14px; margin-bottom: 20px; flex-wrap: wrap; }
.card {
  background: #fff;
  padding: 16px 20px;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 160px;
  box-shadow: 0 2px 6px rgba(0,0,0,.06);
}
.card span { font-size: .8rem; color: #777; }
.card strong { font-size: 1.3rem; color: var(--marrom); }

.btn-excluir, .btn-cancelar-venda { color: var(--vermelho); background: none; border: 1px solid var(--vermelho); border-radius: 6px; padding: 4px 8px; cursor: pointer; }
.btn-editar { border: 1px solid var(--borda); background: #fff; border-radius: 6px; padding: 4px 8px; cursor: pointer; }

@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .carrinho { position: static; }
}