.qb-app{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}[hidden][hidden]{display:none}.qb-toolbar{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);flex-wrap:wrap;padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--color-border);background:var(--color-bg-subtle)}.qb-toolbar-receipt,.qb-toolbar-today{display:flex;flex-direction:column;font-size:0.85rem;color:var(--color-text-muted)}.qb-receipt-label{font-weight:700;text-transform:uppercase;font-size:0.7rem;letter-spacing:0.04em}.qb-receipt-number,#qb-today-total{font-variant-numeric:tabular-nums;color:var(--color-text)}.qb-toolbar-actions{display:flex;gap:var(--space-2);flex-wrap:wrap;margin-left:auto}.qb-history-row{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:var(--space-3);padding:var(--space-3) 0;border-bottom:1px solid var(--color-border)}.qb-history-main{display:flex;flex-direction:column;gap:2px}.qb-history-receipt{font-weight:700}.qb-history-meta{font-size:0.8rem;color:var(--color-text-muted)}.qb-history-total{font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}.qb-history-actions{display:flex;align-items:center;gap:6px}.qb-history-actions-divider{width:1px;align-self:stretch;background:var(--color-border);margin:0 2px}.qb-history-icon-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;width:34px;min-height:34px;padding:3px 2px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text-muted);cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast)}.qb-history-icon-btn:hover,.qb-history-icon-btn:focus-visible{border-color:var(--color-primary);background:var(--color-primary-soft);color:var(--color-primary)}.qb-history-icon-btn:disabled{opacity:0.6;cursor:default}.qb-history-icon-glyph{font-size:0.95rem;line-height:1}.qb-history-icon-caption{font-size:0.55rem;font-weight:700;text-transform:uppercase;letter-spacing:0.02em;line-height:1}.qb-layout{display:flex;flex-direction:column}.qb-col{padding:var(--space-5);min-width:0}.qb-col-left{border-bottom:1px solid var(--color-border)}.qb-search-wrap{position:relative;margin-bottom:var(--space-5)}.qb-search-input{font-size:1rem;min-height:48px}.qb-search-results{position:absolute;top:calc(100% + 4px);left:0;right:0;z-index:20;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);max-height:320px;overflow-y:auto;padding:var(--space-2)}.qb-search-result{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);width:100%;padding:var(--space-3);min-height:48px;border:none;background:transparent;border-radius:var(--radius-sm);cursor:pointer;text-align:left;font-size:0.95rem}.qb-search-result:hover,.qb-search-result:focus-visible{background:var(--color-bg-subtle)}.qb-search-result-price{font-weight:700;color:var(--color-primary);white-space:nowrap}.qb-search-no-results{padding:var(--space-3);color:var(--color-text-muted);font-size:0.9rem;margin:0}.qb-products-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);flex-wrap:wrap;margin-bottom:var(--space-3)}.qb-products-header h2{margin:0;font-size:1.05rem}.qb-products-header-actions{display:flex;align-items:center;gap:var(--space-2);flex-wrap:wrap}.qb-products-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-3);max-height:300px;overflow-y:auto;padding-right:4px;scrollbar-width:thin}.qb-products-grid::-webkit-scrollbar{width:8px}.qb-products-grid::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:999px}.qb-products-grid::-webkit-scrollbar-track{background:transparent}.qb-product-card{position:relative;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;transition:box-shadow var(--transition-fast)}.qb-product-card:hover{box-shadow:var(--shadow-sm)}.qb-product-tap{display:flex;flex-direction:column;justify-content:center;gap:4px;width:100%;min-height:64px;padding:10px var(--space-3);padding-right:66px;border:none;background:transparent;cursor:pointer;text-align:left;transition:background var(--transition-fast)}.qb-product-tap:active{background:rgba(0,0,0,0.06)}.qb-product-body{display:flex;flex-direction:column;gap:2px;min-width:0;width:100%}.qb-product-name{font-weight:700;font-size:0.9rem;color:#14161f;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.qb-product-price-row{display:flex;align-items:center;gap:6px}.qb-product-price{color:#14161f;font-weight:700;font-size:0.85rem;opacity:0.75}.qb-product-tax-badge{font-size:0.6rem;font-weight:700;text-transform:uppercase;letter-spacing:0.03em;padding:1px 5px;border-radius:999px;background:rgba(255,255,255,0.65);color:#14161f}.qb-product-edit{position:absolute;top:6px;right:6px;width:24px;height:24px;border:none;border-radius:999px;background:var(--color-surface);box-shadow:var(--shadow-sm);cursor:pointer;font-size:0.7rem;line-height:1}.qb-product-edit:hover{background:var(--color-primary-soft)}.qb-product-delete{position:absolute;top:6px;right:34px;width:24px;height:24px;border:none;border-radius:999px;background:var(--color-surface);box-shadow:var(--shadow-sm);cursor:pointer;color:var(--color-danger);font-size:0.95rem;line-height:1}.qb-product-delete:hover{background:color-mix(in srgb,var(--color-danger) 12%,transparent)}.qb-empty-hint{color:var(--color-text-muted);font-size:0.9rem;margin:var(--space-3) 0}.qb-custom-item-btn{margin-top:var(--space-4);width:100%}.qb-bill-card h2{margin:0 0 var(--space-4);font-size:1.05rem}.qb-bill-items{display:flex;flex-direction:column;gap:var(--space-1);margin-bottom:var(--space-4);max-height:308px;overflow-y:auto;padding-right:4px;scrollbar-width:thin}.qb-bill-items::-webkit-scrollbar{width:8px}.qb-bill-items::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:999px}.qb-bill-items::-webkit-scrollbar-track{background:transparent}.qb-item-row{display:grid;grid-template-columns:1fr auto auto auto;align-items:center;gap:var(--space-3);padding:var(--space-1) 0;border-bottom:1px solid var(--color-border)}.qb-item-name{font-weight:600;font-size:0.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.qb-item-stepper{display:flex;align-items:center;gap:var(--space-1)}.qb-stepper-btn{width:26px;height:26px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-subtle);font-size:0.9rem;line-height:1;cursor:pointer}.qb-stepper-btn:hover{border-color:var(--color-primary);color:var(--color-primary)}.qb-item-qty{min-width:24px;text-align:center;font-variant-numeric:tabular-nums}.qb-item-total{font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}.qb-item-remove{width:26px;height:26px;border:none;border-radius:999px;background:transparent;color:var(--color-danger);font-size:1.1rem;line-height:1;cursor:pointer}.qb-item-remove:hover{background:color-mix(in srgb,var(--color-danger) 12%,transparent)}.qb-discount-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);margin-bottom:var(--space-4)}.qb-discount-controls{display:flex;gap:var(--space-2)}.qb-discount-controls .select,.qb-discount-controls .input{min-height:34px;padding:4px 8px;font-size:0.85rem}.qb-discount-controls .select{width:68px}.qb-discount-controls .input{width:84px}.qb-totals{border-top:1px solid var(--color-border);padding-top:var(--space-3);margin-bottom:var(--space-4)}.qb-totals-row{display:flex;justify-content:space-between;padding:var(--space-1) 0;font-size:0.9rem;color:var(--color-text-muted)}.qb-totals-grand{font-size:1.3rem;font-weight:800;color:var(--color-text);border-top:1px solid var(--color-border);margin-top:var(--space-2);padding-top:var(--space-3)}.qb-payment{margin-bottom:var(--space-4)}.qb-payment-methods{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-2);margin-bottom:var(--space-3)}.qb-payment-btn{min-height:36px;padding:6px 4px;border:1.5px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);font-weight:600;font-size:0.8rem;cursor:pointer;transition:border-color var(--transition-fast),background var(--transition-fast),color var(--transition-fast)}.qb-payment-btn[aria-pressed="true"]{border-color:var(--color-primary);background:var(--color-primary-soft);color:var(--color-primary)}.qb-amount-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3)}.qb-amount-row .input{max-width:160px;font-size:1.1rem;text-align:right}.qb-change-row{display:flex;justify-content:space-between;align-items:center;margin-top:var(--space-3);padding:var(--space-3);border-radius:var(--radius-md);background:var(--color-success);color:#fff;font-weight:700}.qb-change-amount.qb-change-negative{color:#fff}.qb-change-row:has(.qb-change-negative){background:var(--color-danger)}.qb-receipt-actions{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-3)}.qb-receipt-actions .btn{width:100%}@media (min-width:480px){.qb-receipt-actions{flex-direction:row;flex-wrap:wrap}.qb-receipt-actions .btn{flex:1;min-width:150px;width:auto}.qb-products-grid{grid-template-columns:repeat(3,1fr)}}.qb-convert-btn{width:100%}.qb-modal-actions{display:flex;justify-content:flex-end;gap:var(--space-2);margin-top:var(--space-4);flex-wrap:wrap}.qb-tax-row{display:flex;align-items:center;justify-content:space-between;padding:var(--space-2) 0;border-bottom:1px solid var(--color-border);font-size:0.9rem}@media (min-width:900px){.qb-layout{flex-direction:row}.qb-col-left{flex:1 1 55%;border-bottom:none;border-right:1px solid var(--color-border)}.qb-col-right{flex:1 1 45%}}.qb-tabs{display:flex;gap:var(--space-2);margin-bottom:var(--space-4);border-bottom:1px solid var(--color-border)}.qb-tab-btn{padding:var(--space-2) var(--space-3);border:none;border-bottom:2px solid transparent;background:transparent;color:var(--color-text-muted);font-weight:600;font-size:0.9rem;cursor:pointer;margin-bottom:-1px}.qb-tab-btn:hover{color:var(--color-text)}.qb-tab-btn.is-active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.qb-bulk-header{display:none}.qb-bulk-rows{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-3);max-height:340px;overflow-y:auto;padding-right:4px;scrollbar-width:thin}.qb-bulk-rows::-webkit-scrollbar{width:8px}.qb-bulk-rows::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:999px}.qb-bulk-rows::-webkit-scrollbar-track{background:transparent}.qb-bulk-row{display:flex;align-items:flex-start;gap:var(--space-2);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md)}.qb-bulk-row-fields{display:grid;grid-template-columns:1fr;gap:var(--space-2);flex:1;min-width:0}.qb-bulk-row-remove{flex-shrink:0;width:28px;height:28px;border:none;border-radius:999px;background:var(--color-bg-subtle);color:var(--color-danger);font-size:1rem;line-height:1;cursor:pointer}.qb-bulk-row-remove:hover{background:color-mix(in srgb,var(--color-danger) 12%,transparent)}@media (min-width:900px){.qb-bulk-header{display:grid;grid-template-columns:2fr 110px 130px 1.4fr;gap:var(--space-2);padding:0 var(--space-3) var(--space-1) calc(28px + var(--space-2));font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.02em;color:var(--color-text-muted)}.qb-bulk-row{align-items:center;padding:var(--space-2) var(--space-3)}.qb-bulk-row-fields{grid-template-columns:2fr 110px 130px 1.4fr}}.qb-edit-header{display:none}.qb-edit-rows{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-3);max-height:360px;overflow-y:auto;padding-right:4px;scrollbar-width:thin}.qb-edit-rows::-webkit-scrollbar{width:8px}.qb-edit-rows::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:999px}.qb-edit-rows::-webkit-scrollbar-track{background:transparent}.qb-edit-row{display:flex;align-items:flex-start;gap:var(--space-2);padding:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-md)}.qb-edit-row-fields{display:grid;grid-template-columns:1fr;gap:var(--space-2);flex:1;min-width:0;align-items:center}.qb-edit-row-fields .input,.qb-edit-row-fields .select{min-height:34px;padding:4px 8px;font-size:0.85rem}.qb-edit-row-total{font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap;padding-top:6px}.qb-edit-row-remove{flex-shrink:0;width:28px;height:28px;border:none;border-radius:999px;background:var(--color-bg-subtle);color:var(--color-danger);font-size:1rem;line-height:1;cursor:pointer}.qb-edit-row-remove:hover{background:color-mix(in srgb,var(--color-danger) 12%,transparent)}@media (min-width:900px){.qb-edit-header{display:grid;grid-template-columns:2fr 90px 100px 1.2fr 100px;gap:var(--space-2);padding:0 var(--space-3) var(--space-1) calc(28px + var(--space-2));font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.02em;color:var(--color-text-muted)}.qb-edit-row{align-items:center;padding:var(--space-2) var(--space-3)}.qb-edit-row-fields{grid-template-columns:2fr 90px 100px 1.2fr}.qb-edit-row-total{padding-top:0;width:100px;text-align:right}}