:root {
  --verde: #14532d; --verde-2: #166534; --verde-claro: #dcfce7;
  --tinta: #1c1917; --cinza: #78716c; --linha: #e7e5e4; --fundo: #f5f5f4; --branco: #fff;
  --ambar: #b45309; --ambar-claro: #fef3c7; --vermelho: #b91c1c; --vermelho-claro: #fee2e2;
  --raio: 14px; --sombra: 0 1px 2px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.05);
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--tinta); background: var(--fundo); }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

/* topo */
.topo { position: sticky; top: 0; z-index: 10; background: var(--verde); color: #fff; display: flex; align-items: center; gap: 16px; padding: 0 16px; padding-top: env(safe-area-inset-top); }
.marca { font-size: 18px; letter-spacing: .02em; white-space: nowrap; }
.marca b { color: #86efac; }
.abas { display: flex; gap: 4px; margin-left: auto; }
.abas button { background: none; border: 0; color: #d1fae5; padding: 14px 14px; display: flex; align-items: center; gap: 6px; border-bottom: 3px solid transparent; font-weight: 500; }
.abas button span { font-size: 18px; }
.abas button.ativa { color: #fff; border-bottom-color: #86efac; }
@media (max-width: 640px) {
  .topo { padding: 0; }
  .marca { display: none; }
  .abas { margin: 0; width: 100%; }
  .abas button { flex: 1; flex-direction: column; gap: 2px; font-size: 12px; padding: 8px 2px 6px; }
}

main { max-width: 760px; margin: 0 auto; padding: 16px 16px 120px; }
h2 { font-size: 22px; margin: 4px 0 14px; }
h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--cinza); margin: 22px 0 8px; font-weight: 600; }
.sub { color: var(--cinza); margin: -8px 0 16px; }

.cartao { background: var(--branco); border-radius: var(--raio); box-shadow: var(--sombra); padding: 16px; margin-bottom: 12px; }

/* botões */
.btn { border: 1px solid var(--linha); background: var(--branco); border-radius: 12px; padding: 12px 16px; min-height: 48px; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; gap: 8px; transition: transform .05s, background .15s; }
.btn:active { transform: scale(.98); }
.btn.primario { background: var(--verde-2); border-color: var(--verde-2); color: #fff; }
.btn.perigo { color: var(--vermelho); }
.btn.grande { min-height: 64px; font-size: 20px; width: 100%; }
.btn.fantasma { background: none; border-color: transparent; color: var(--cinza); }
.linha-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.linha-btns .btn { flex: 1; }
.grade { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.grade .btn { min-height: 56px; font-size: 15px; text-align: center; line-height: 1.15; }
.grade .btn.destaque { background: var(--verde-claro); border-color: #86efac; color: var(--verde); }

/* leitura */
.leitura { display: flex; gap: 8px; }
.leitura input { flex: 1; min-width: 0; height: 64px; border: 2px solid var(--verde-2); border-radius: 14px; padding: 0 16px; font-size: 20px; font-family: var(--mono); background: var(--branco); }
.leitura input:focus { outline: 4px solid #bbf7d0; }
.leitura .cam { width: 64px; height: 64px; border-radius: 14px; border: 0; background: var(--verde-2); color: #fff; font-size: 26px; flex: none; }
.dica { font-size: 14px; color: var(--cinza); margin: 8px 2px 0; display: flex; align-items: center; gap: 6px; }
.dica .pulso { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; animation: pulso 1.4s infinite; }
@keyframes pulso { 50% { opacity: .25; } }

/* passos */
.passos { display: flex; gap: 4px; margin-bottom: 14px; }
.passos i { flex: 1; height: 5px; border-radius: 3px; background: var(--linha); }
.passos i.feito { background: #86efac; }
.passos i.atual { background: var(--verde-2); }

.resumo { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.chip { background: var(--branco); border: 1px solid var(--linha); border-radius: 999px; padding: 6px 12px; font-size: 14px; display: inline-flex; gap: 6px; align-items: center; max-width: 100%; }
.chip b { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip small { color: var(--cinza); }
button.chip { cursor: pointer; }

.pergunta { text-align: center; padding: 22px 16px; }
.pergunta .rotulo { color: var(--cinza); font-size: 15px; }
.pergunta .numero { font-family: var(--mono); font-size: 56px; font-weight: 700; letter-spacing: .04em; margin: 6px 0 18px; color: var(--verde); }
.simnao { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.simnao .btn { min-height: 72px; font-size: 22px; }

/* campos */
label { display: block; font-size: 14px; color: var(--cinza); margin-bottom: 12px; }
label input, label select { display: block; width: 100%; margin-top: 4px; height: 52px; border: 1px solid #d6d3d1; border-radius: 12px; padding: 0 14px; font-size: 17px; color: var(--tinta); background: var(--branco); }
label.check { display: flex; gap: 8px; align-items: center; color: var(--tinta); }
label.check input { width: 22px; height: 22px; margin: 0; }

/* lista de itens */
.lista { display: flex; flex-direction: column; gap: 8px; }
.item { display: flex; gap: 12px; align-items: center; background: var(--branco); border-radius: 12px; padding: 12px 14px; box-shadow: var(--sombra); border: 0; text-align: left; width: 100%; }
.item .pat { font-family: var(--mono); font-weight: 700; font-size: 18px; min-width: 64px; color: var(--verde); }
.item .info { flex: 1; min-width: 0; }
.item .info b { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .info small { color: var(--cinza); }
.status { font-size: 12px; font-weight: 700; padding: 3px 8px; border-radius: 6px; white-space: nowrap; }
.status.ESTOQUE { background: var(--verde-claro); color: var(--verde); }
.status.FORA { background: #e0e7ff; color: #3730a3; }
.status.GARANTIA { background: var(--ambar-claro); color: var(--ambar); }
.status.DESCARTADO { background: var(--vermelho-claro); color: var(--vermelho); }
.tag-legado { font-size: 11px; color: var(--cinza); border: 1px solid var(--linha); border-radius: 4px; padding: 0 4px; margin-left: 4px; }

.ficha { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 15px; }
.ficha dt { color: var(--cinza); }
.ficha dd { margin: 0; font-weight: 500; word-break: break-word; }
.ficha .mono { font-family: var(--mono); }

.hist { font-size: 14px; border-left: 2px solid var(--linha); margin-left: 6px; padding-left: 14px; }
.hist div { margin-bottom: 8px; position: relative; }
.hist div::before { content: ""; position: absolute; left: -20px; top: 6px; width: 10px; height: 10px; border-radius: 50%; background: #a8a29e; }
.hist small { color: var(--cinza); display: block; }

/* painel */
.cats { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; }
.cat { background: var(--branco); border-radius: 12px; padding: 12px 14px; box-shadow: var(--sombra); border: 0; text-align: left; }
.cat .n { font-size: 30px; font-weight: 700; color: var(--verde); font-variant-numeric: tabular-nums; }
.cat .n.zero { color: #d6d3d1; }
.cat .nome { font-size: 13px; font-weight: 600; }
.cat small { color: var(--cinza); font-size: 12px; }

/* alertas, toast, modal */
.alerta { border-radius: 12px; padding: 12px 14px; margin-bottom: 12px; font-size: 15px; }
.alerta.erro { background: var(--vermelho-claro); color: var(--vermelho); }
.alerta.aviso { background: var(--ambar-claro); color: #78350f; }
.alerta.ok { background: var(--verde-claro); color: var(--verde); }
.toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom)); transform: translateX(-50%); background: var(--tinta); color: #fff; padding: 14px 20px; border-radius: 12px; z-index: 50; box-shadow: 0 8px 30px rgba(0,0,0,.3); max-width: calc(100% - 32px); font-weight: 500; }
.toast.ok { background: var(--verde-2); }
.toast.erro { background: var(--vermelho); }

.modal { position: fixed; inset: 0; background: rgba(28,25,23,.55); z-index: 40; display: flex; align-items: flex-end; justify-content: center; }
.modal .caixa { background: var(--branco); width: 100%; max-width: 520px; border-radius: 20px 20px 0 0; padding: 20px 16px calc(20px + env(safe-area-inset-bottom)); max-height: 92vh; overflow: auto; }
@media (min-width: 640px) { .modal { align-items: center; } .modal .caixa { border-radius: 20px; } }
.modal h4 { margin: 0 0 6px; font-size: 20px; }
.modal p { margin: 0 0 18px; color: #44403c; }

.teclado .visor { font-family: var(--mono); font-size: 40px; font-weight: 700; text-align: center; min-height: 60px; border-bottom: 2px solid var(--linha); margin-bottom: 12px; letter-spacing: .05em; }
.teclado .teclas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.teclado .teclas .btn { min-height: 64px; font-size: 26px; }

.camera-box { position: relative; border-radius: 14px; overflow: hidden; background: #000; min-height: 240px; }
.camera-box video { width: 100% !important; display: block; }

/* login */
.tela-login { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; background: var(--verde); }
.login { width: 100%; max-width: 380px; padding: 28px 22px; }
.login h1 { margin: 0 0 4px; color: var(--verde); }
.login .sub { margin: 0 0 20px; }

.vazio { text-align: center; color: var(--cinza); padding: 30px 10px; }
.carregando { opacity: .5; pointer-events: none; }