/*
   dPOLLBAR BILL — POS Terminal Stylesheet
   */
.pos-layout { display: flex; height: 100vh; overflow: hidden; background: var(--bg-primary); }
.pos-products { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.pos-cart { width: 420px; background: var(--bg-secondary); border-left: 1px solid var(--border); display: flex; flex-direction: column; }

/* Product Panel Header */
.pos-header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 12px; background: var(--bg-secondary); }
.pos-header h1 { font-size: 16px; font-weight: 800; }
.pos-search { flex: 1; }
.pos-search input { background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 9px 14px 9px 38px; color: var(--text-primary); font-size: 13px; width: 100%; outline: none; transition: var(--transition); }
.pos-search input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }

/* Category Tabs */
.pos-categories { display: flex; gap: 6px; padding: 12px 16px; overflow-x: auto; background: var(--bg-secondary); border-bottom: 1px solid var(--border); }
.pos-categories::-webkit-scrollbar { height: 3px; }
.cat-tab { flex-shrink: 0; padding: 6px 14px; border-radius: 20px; background: var(--bg-card); border: 1px solid var(--border); color: var(--text-secondary); font-size: 12px; font-weight: 600; cursor: pointer; transition: var(--transition); }
.cat-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.cat-tab:hover:not(.active) { border-color: var(--accent); color: var(--accent-light); }

/* Product Grid */
.pos-product-grid { flex: 1; overflow-y: auto; padding: 20px; display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 12px; align-content: start; }
.product-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 14px; cursor: pointer; transition: var(--transition); text-align: center; position: relative; overflow: hidden; }
.product-card:hover { border-color: var(--accent); background: var(--bg-surface); transform: translateY(-2px); }
.product-card:active { transform: scale(0.97); }
.product-card.out-of-stock { opacity: 0.4; pointer-events: none; }
.product-card .product-icon { font-size: 32px; margin-bottom: 10px; }
.product-card .product-name { font-size: 13px; font-weight: 700; color: var(--text-primary); line-height: 1.3; margin-bottom: 6px; }
.product-card .product-price { font-size: 15px; font-weight: 800; color: var(--accent-light); }
.product-card .product-stock { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.product-card .add-ripple { position: absolute; inset: 0; background: var(--accent-glow); opacity: 0; border-radius: inherit; transition: opacity 0.2s; }
.product-card:active .add-ripple { opacity: 1; }

/* Cart Panel */
.cart-header { padding: 16px 20px; border-bottom: 1px solid var(--border); }
.cart-title { font-size: 15px; font-weight: 800; margin-bottom: 8px; }
.customer-selector { display: flex; gap: 6px; }
.customer-selector input { flex: 1; font-size: 12px; }
.cart-scroll-area { flex: 1; overflow-y: auto; display: flex; flex-direction: column; background: var(--bg-secondary); }
.cart-scroll-area::-webkit-scrollbar { width: 10px; }
.cart-scroll-area::-webkit-scrollbar-track { background: var(--bg-secondary); }
.cart-scroll-area::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 5px; border: 2px solid var(--bg-secondary); }
.cart-scroll-area::-webkit-scrollbar-thumb:hover { background: var(--accent); }
.cart-items { padding: 12px; min-height: 200px; }
.cart-empty { text-align: center; padding: 40px 20px; color: var(--text-muted); }
.cart-empty .empty-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.3; }
.cart-item { display: flex; align-items: center; gap: 10px; padding: 10px; border-radius: var(--radius-sm); background: var(--bg-card); margin-bottom: 8px; border: 1px solid var(--border); }
.cart-item-name { font-size: 14px; font-weight: 700; flex: 1; }
.cart-item-price { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.qty-control { display: flex; align-items: center; gap: 6px; }
.qty-btn { width: 32px; height: 32px; border-radius: 8px; background: var(--bg-surface); border: 1px solid var(--border); color: var(--text-primary); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700; transition: var(--transition); }
.qty-btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.qty-val { font-size: 16px; font-weight: 800; min-width: 28px; text-align: center; }
.cart-item-subtotal { font-size: 16px; font-weight: 800; color: var(--accent-light); min-width: 90px; text-align: right; }
.remove-item { color: var(--red); cursor: pointer; background: none; border: none; font-size: 16px; padding: 2px; }

/* Cart Summary */
.cart-summary { padding: 16px; border-top: 1px solid var(--border); background: var(--bg-card); }
.summary-row { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 10px; }
.summary-row.total { font-size: 24px; font-weight: 900; color: var(--text-primary); margin-top: 15px; padding-top: 15px; border-top: 1px dashed var(--border); }
.summary-label { color: var(--text-muted); }

/* Payment Details (Inside Scroll) */
.payment-details { padding: 16px; border-top: 1px solid var(--border); }

/* Action Buttons (Fixed at Bottom) */
.cart-actions { padding: 16px; border-top: 1px solid var(--border); background: var(--bg-card); flex-shrink: 0; }
.payment-methods { display: grid; grid-template-columns: repeat(3,1fr); gap: 6px; margin-bottom: 12px; }
.pay-method { background: var(--bg-card); border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 8px 4px; text-align: center; cursor: pointer; transition: var(--transition); }
.pay-method.selected { border-color: var(--accent); background: var(--accent-glow); }
.pay-method .method-icon { font-size: 18px; margin-bottom: 2px; }
.pay-method .method-name { font-size: 10px; font-weight: 600; color: var(--text-secondary); }
.pay-method.selected .method-name { color: var(--accent-light); }

/* Print Styles */
@media print {
  .pos-products, .pos-header, .pos-categories, .cart-header, .payment-section { display: none; }
}