:root{
  --bg: #0b0d10;
  --surface: #13171c;
  --surface-2: #161b22;
  --border: #242a33;
  --text: #e6eaf1;
  --muted: #a7afbf;
  --primary: #5b8cff;
  --primary-2: #2a66ff;
  --danger: #ff5b6e;
  --ok: #36d399;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-xs: 8px;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background: radial-gradient(1200px 800px at 10% -10%, #0c1224 0%, #0b0d10 50%) fixed,
              radial-gradient(900px 600px at 110% 10%, #141a2c 0%, transparent 60%) fixed;
  color:var(--text);
  font: 15px/1.45 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
}

/* Header */
.app-header{
  position: sticky; top:0; z-index:50;
  display:flex; justify-content:space-between; align-items:center;
  gap:16px; padding:16px 20px;
  background: rgba(19,23,28,.85);
  backdrop-filter: blur(8px);
  border-bottom:1px solid var(--border);
}
.brand{ display:flex; align-items:center; gap:12px; }
.logo{
  width:42px; height:42px; border-radius:12px;
  background: linear-gradient(135deg, var(--primary), #9aaeff);
  display:grid; place-items:center; color:#0b0d10; font-weight:800;
  box-shadow: var(--shadow);
}
.title h1{ margin:0; font-size:18px; }
.subtitle{ margin:2px 0 0; color:var(--muted); font-size:12px; }
.status{ display:flex; align-items:center; gap:10px; color:var(--muted); }
.status .badge{ background:var(--surface-2); border:1px solid var(--border); padding:6px 10px; border-radius:999px; }
.status .dot{ opacity:.55; }

/* Layout principal */
.layout{
  max-width: 1300px;
  margin: 18px auto;
  padding: 0 16px;
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 18px;
}

/* Esquerda */
.left-pane{ display:grid; gap:16px; }

.scanner{
  background: var(--surface);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display:grid; gap:10px;
}
.scanner label{ font-weight:600; display:flex; align-items:center; gap:8px; }
.scanner input{
  width:100%; padding:14px 12px; border-radius:10px;
  border:1px solid var(--border); background:var(--surface-2); color:var(--text);
}
.scanner input::placeholder{ color:#8892a6; }
.hint{ color:var(--muted); font-size:12px; }

/* Catálogo */
.catalog{
  display:grid; gap:14px;
  grid-template-columns: repeat(2, minmax(0,1fr));
}
.product{
  display:grid; grid-template-columns: 110px 1fr auto; gap:14px;
  align-items:center;
  padding:12px;
  background: linear-gradient(180deg, #151a22 0%, #11151b 70%);
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform .15s ease, border-color .15s ease;
}
.product:hover{ transform: translateY(-2px); border-color:#2b3340; }
.thumb{
  width:110px; height:110px; border-radius:12px;
  border:1px solid var(--border);
  background:
    radial-gradient(160px 120px at -20% -10%, rgba(255,255,255,.06), transparent 60%),
    linear-gradient(135deg, #2b3647, #1c2430);
  position:relative; overflow:hidden;
}
.thumb::after{
  content: attr(data-fake-img);
  position:absolute; right:8px; bottom:4px;
  font-weight:800; font-size:22px; color:#ffffff1c;
}
.info .name{ margin:0 0 4px; font-size:16px; }
.sku{ margin:0 0 8px; color:var(--muted); font-size:12px; }
.chips{ display:flex; flex-wrap:wrap; gap:6px; margin-bottom:8px; }
.chip{
  display:inline-flex; align-items:center; justify-content:center;
  padding:6px 10px; border-radius:999px;
  font-size:12px; background:#1a2030; border:1px solid var(--border);
}
.swatches{ display:flex; gap:8px; }
.swatch{
  width:16px; height:16px; border-radius:50%;
  display:inline-block; background:var(--c,#aaa);
  outline:2px solid #00000040; border:1px solid #00000055;
}

.buy{ display:grid; gap:10px; justify-items:end; }
.price{ font-weight:800; }
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:10px 14px; border-radius:10px; background:var(--primary);
  color:#0b0d10; font-weight:800; text-decoration:none;
  border:1px solid #3e5dd6; box-shadow: var(--shadow);
}
.btn:hover{ filter:brightness(1.05); }
.btn:active{ transform: translateY(1px); }
.btn.outlined{
  background:transparent; color:var(--text);
  border:1px solid var(--primary);
}
.btn.secondary{
  background:#202738; color:var(--text); border:1px solid var(--border);
}
.btn.primary{ background:var(--primary); color:#0b0d10; border:1px solid #355aff; }
.btn.danger{ background:var(--danger); color:#0b0d10; border:1px solid #c73b4b; }
.btn[disabled]{ opacity:.5; cursor:not-allowed; }

/* Direita */
.right-pane{ display:grid; gap:16px; }

.cart{
  background: var(--surface);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:14px;
  box-shadow: var(--shadow);
}
.cart h2{ margin:4px 0 12px; }

.cart-table{
  width:100%; border-collapse: collapse; border-spacing:0;
  background: var(--surface-2);
  border:1px solid var(--border);
  border-radius: 10px; overflow:hidden;
}
.cart-table th, .cart-table td{
  padding:10px 12px; border-bottom:1px solid var(--border);
}
.cart-table thead th{ background:#0f1319; text-align:left; font-size:12px; color:#b9c2d3; }
.cart-table tfoot td{ background:#0f1319; }
.total-row td{ font-weight:800; }
.ta-right{ text-align:right; }
.muted{ color:var(--muted); }

.cart-actions{
  display:flex; gap:8px; justify-content:flex-end; margin-top:12px;
}

.shortcuts{
  background: var(--surface);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:14px;
}
.shortcuts h3{ margin:4px 0 10px; }
.shortcuts ul{ list-style:none; padding:0; margin:0; display:grid; gap:6px; }
kbd{
  background:#0f1319; border:1px solid var(--border);
  border-bottom-color:#0a0d12; padding:2px 6px; border-radius:6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size:12px; color:#cbd5e5; margin-right:6px;
}

/* Sheet (modal) de pagamento via :target */
.sheet{
  position:fixed; inset:0; display:none;
  background: rgba(0,0,0,.55);
  padding: 24px;
}
.sheet:target{ display:block; }
.sheet-card{
  max-width: 860px; margin: 0 auto; background: var(--surface);
  border:1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow:hidden;
}
.sheet-header{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 16px; border-bottom:1px solid var(--border);
}
.icon-btn{ color:var(--text); text-decoration:none; font-size:18px; padding:6px; border-radius:8px; }
.icon-btn:hover{ background:#0f1319; }
.sheet-footer{
  display:flex; gap:10px; justify-content:flex-end;
  padding:14px 16px; border-top:1px solid var(--border);
}

/* Abas */
.tabs{
  display:grid; gap:0; padding:0 16px 16px;
}
.tabs input{ display:none; }
.tabs label{
  display:inline-block; padding:12px 14px; cursor:pointer;
  border-bottom:2px solid transparent; color:#b7c2d8; margin-right:10px;
}
#tab-pix:checked + label,
#tab-debito:checked + label,
#tab-credito:checked + label,
#tab-dinheiro:checked + label{ color:var(--text); border-color: var(--primary); }

.tab-panels{
  background: var(--surface-2);
  border:1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin-top:10px;
}
.tab-panel{ display:none; }
#tab-pix:checked ~ .tab-panels .tab-panel:nth-child(1){ display:block; }
#tab-debito:checked ~ .tab-panels .tab-panel:nth-child(2){ display:block; }
#tab-credito:checked ~ .tab-panels .tab-panel:nth-child(3){ display:block; }
#tab-dinheiro:checked ~ .tab-panels .tab-panel:nth-child(4){ display:block; }

.grid-2{ display:grid; grid-template-columns: 1fr 1fr; gap:12px; }
.inplabel{ display:block; font-size:12px; color:#a7b1c4; margin-bottom:6px; }
.fake-input{
  background:#0f1319; border:1px solid var(--border); border-radius:8px;
  padding:10px 12px; color:var(--text);
}

/* Footer */
.app-footer{
  max-width:1300px; margin: 10px auto 40px; padding:0 16px; color:var(--muted);
}

/* Acessibilidade */
:focus-visible{ outline:2px solid var(--primary); outline-offset:2px; border-radius:6px; }

/* Responsivo */
@media (max-width: 1024px){
  .layout{ grid-template-columns: 1fr; }
  .catalog{ grid-template-columns: 1fr; }
  .status{ display:none; }
}

/* Preferência de tema claro (opcional) */
@media (prefers-color-scheme: light){
  :root{
    --bg:#f4f6fb; --surface:#ffffff; --surface-2:#f7f9fe;
    --border:#e6e9f3; --text:#0e1320; --muted:#5a6272;
    --primary:#2a66ff; --primary-2:#1a4ae6; --danger:#ff4b5f;
    --shadow: 0 10px 30px rgba(16,37,76,.08);
  }
  body{
    background:
      radial-gradient(1200px 800px at 10% -10%, #e8edff 0%, #f4f6fb 60%) fixed,
      radial-gradient(900px 600px at 110% 10%, #ffffff 0%, transparent 60%) fixed;
  }
  .thumb{ background: linear-gradient(135deg, #e9eef9, #dfe6f5); }
  .cart-table thead th, .cart-table tfoot td{ background:#f0f4ff; }
}

/* === Patch para controles do carrinho e teclado numérico === */
.cart-item{ position:relative; display:flex; flex-direction:column; gap:2px; padding-right:22px; }
.remove-btn{
  position:absolute; right:0; top:0;
  width:22px; height:22px; line-height:18px; text-align:center;
  border:1px solid var(--border); background:#0f1319; color:var(--text);
  border-radius:6px; cursor:pointer;
}
.remove-btn:hover{ filter:brightness(1.1); }

.qty{ display:inline-flex; align-items:center; gap:6px; justify-content:flex-end; }
.qty-btn{
  border:1px solid var(--border); background:#0f1319; color:var(--text);
  border-radius:8px; padding:4px 10px; cursor:pointer;
}
.qty-input{
  width:44px; text-align:center; padding:6px; border-radius:8px;
  border:1px solid var(--border); background:#0f1319; color:var(--text);
}

.real-input{
  width:100%; padding:10px 12px; border-radius:8px;
  border:1px solid var(--border); background:#0f1319; color:var(--text);
}

.keypad{
  display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap:8px;
  margin-top:10px;
}
.keypad button{
  padding:10px 0; border:1px solid var(--border); background:#0f1319; color:var(--text);
  border-radius:10px; cursor:pointer;
}
.keypad button.wide{ grid-column: 1 / -1; }
.btn.small{ padding:6px 10px; font-size:12px; }