.pos-layout { display: grid; grid-template-columns: minmax(380px, 1.2fr) minmax(390px, 1.15fr) minmax(270px, .8fr); align-items: start; }
.product-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; margin-bottom: 16px; }
.product-button { min-height: 92px; display: grid; place-items: center; text-align: center; font-size: 17px; line-height: 1.35; border: 2px solid #aebbc4; border-radius: 10px; background: #fff; font-weight: 700; }
.product-button:active { transform: translateY(1px); background: #eaf5f0; }
.product-button .price { color: var(--primary); font-size: 20px; }
.inventory-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 7px; }
.inventory-item { padding: 8px; border-radius: 7px; background: #edf3f0; text-align: center; }
.inventory-item strong { display: block; font-size: 22px; }
.inventory-item.low { background: #fee4e2; color: #b42318; }
.cart-title { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.cart-lines { min-height: 250px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cart-line { display: grid; grid-template-columns: 1fr auto auto; gap: 8px; align-items: center; padding: 9px 0; border-bottom: 1px solid #edf0f2; }
.cart-line:last-child { border-bottom: 0; }
.qty-controls { display: flex; align-items: center; gap: 5px; }
.qty-controls button { min-width: 44px; border: 1px solid var(--line); background: #fff; border-radius: 7px; font-size: 22px; }
.qty { min-width: 32px; text-align: center; font-size: 19px; font-weight: 700; }
.total { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; font-size: 21px; }
.total strong { font-size: 32px; }
.payment-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.side-stack { display: grid; gap: 12px; }
.queue { display: grid; gap: 8px; max-height: 310px; overflow: auto; }
.queue-item { border: 1px solid var(--line); border-radius: 8px; padding: 9px; background: #fff; }
.queue-head { display: flex; justify-content: space-between; align-items: center; gap: 7px; margin-bottom: 7px; }
.queue-head strong { font-size: 21px; }
.queue-item .btn { min-height: 38px; padding: 6px 9px; }
.queue-actions { display: grid; grid-template-columns: 1fr auto; gap: 6px; }
.square-dialog { text-align: center; }
.square-amount { font-size: 40px; font-weight: 700; margin: 8px; }
.square-dialog img { width: min(300px,80vw); height: auto; image-rendering: pixelated; }
@media (max-width: 1100px) {
  .pos-layout { grid-template-columns: 1fr 1fr; }
  .side-stack { grid-column: 1 / -1; grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .pos-layout { grid-template-columns: 1fr; }
  .side-stack { grid-column: auto; grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr 1fr; }
}