:root{--primary:#2d5016;--primary-dark:#1e3a0f;--primary-light:#4a7a2a;--secondary:#8b7355;--accent:#d4a853;--success:#28a745;--danger:#dc3545;--warning:#ffc107;--info:#17a2b8;--light:#f8f9fa;--dark:#212529;--gray-100:#f8f9fa;--gray-200:#e9ecef;--gray-300:#dee2e6;--gray-400:#ced4da;--gray-500:#adb5bd;--gray-600:#6c757d;--gray-700:#495057;--gray-800:#343a40;--gray-900:#212529;--border-radius:8px;--shadow:0 2px 4px #0000001a;--shadow-lg:0 4px 12px #00000026;--transition:all 0.2s ease}*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;background:#f8f9fa;background:var(--gray-100);color:#212529;color:var(--gray-900);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}.app{display:flex;flex-direction:column;min-height:100vh}.pos-layout{height:calc(100vh - 60px)}.pos-layout,.products-panel{display:flex;flex:1 1;overflow:hidden}.products-panel{background:#fff;flex-direction:column}.cart-panel{background:#f8f9fa;background:var(--gray-100);border-left:1px solid #dee2e6;border-left:1px solid var(--gray-300);display:flex;flex-direction:column;width:400px}.pos-header{background:#2d5016;background:var(--primary);box-shadow:0 2px 4px #0000001a;box-shadow:var(--shadow);color:#fff;height:60px;justify-content:space-between;padding:0 20px}.pos-header,.pos-header h1{align-items:center;display:flex}.pos-header h1{font-size:1.25rem;font-weight:600;gap:10px}.pos-header-right{align-items:center;display:flex;gap:20px}.reader-status{align-items:center;background:#ffffff1a;border-radius:8px;border-radius:var(--border-radius);display:flex;font-size:.875rem;gap:8px;padding:6px 12px}.reader-status .indicator{background:#dc3545;background:var(--danger);border-radius:50%;height:8px;width:8px}.reader-status .indicator.connected{background:#28a745;background:var(--success)}.user-info{font-size:.875rem;opacity:.9}.btn-logout{background:#ffffff1a;border:1px solid #fff3;border-radius:8px;border-radius:var(--border-radius);color:#fff;cursor:pointer;font-size:.875rem;padding:6px 12px;transition:all .2s ease;transition:var(--transition)}.btn-logout:hover{background:#fff3}.category-tabs{background:#f8f9fa;background:var(--gray-100);border-bottom:1px solid #dee2e6;border-bottom:1px solid var(--gray-300);display:flex;flex-shrink:0;gap:8px;overflow-x:auto;padding:12px 16px}.category-tab{background:#fff;border:1px solid #dee2e6;border:1px solid var(--gray-300);border-radius:8px;border-radius:var(--border-radius);cursor:pointer;font-size:.875rem;font-weight:500;padding:8px 16px;transition:all .2s ease;transition:var(--transition);white-space:nowrap}.category-tab:hover{color:#2d5016;color:var(--primary)}.category-tab.active,.category-tab:hover{border-color:#2d5016;border-color:var(--primary)}.category-tab.active{background:#2d5016;background:var(--primary);color:#fff}.products-grid{grid-gap:12px;align-content:start;display:grid;flex:1 1;gap:12px;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));overflow-y:auto;padding:16px}.product-card{background:#fff;border:1px solid #dee2e6;border:1px solid var(--gray-300);border-radius:8px;border-radius:var(--border-radius);cursor:pointer;display:flex;flex-direction:column;padding:12px;transition:all .2s ease;transition:var(--transition)}.product-card:hover{border-color:#2d5016;border-color:var(--primary);box-shadow:0 2px 4px #0000001a;box-shadow:var(--shadow);transform:translateY(-2px)}.product-card.out-of-stock{cursor:not-allowed;opacity:.5}.product-card.out-of-stock:hover{box-shadow:none;transform:none}.product-image{background:#e9ecef;background:var(--gray-200);border-radius:4px;height:100px;margin-bottom:8px;object-fit:cover;width:100%}.product-name{font-size:.9rem;font-weight:600;line-height:1.3;margin-bottom:4px}.product-price{color:#2d5016;color:var(--primary);font-size:1.1rem;font-weight:700}.product-stock{color:#6c757d;color:var(--gray-600);font-size:.75rem;margin-top:4px}.product-stock.low{color:#ffc107;color:var(--warning)}.product-stock.out{color:#dc3545;color:var(--danger)}.cart-header{align-items:center;border-bottom:1px solid #dee2e6;border-bottom:1px solid var(--gray-300);display:flex;justify-content:space-between;padding:16px}.cart-header h2{font-size:1.1rem;font-weight:600}.btn-clear-cart{background:none;border:none;color:#dc3545;color:var(--danger);cursor:pointer;font-size:.875rem;padding:4px 8px}.btn-clear-cart:hover{text-decoration:underline}.cart-items{flex:1 1;overflow-y:auto;padding:8px 0}.cart-empty{align-items:center;color:#adb5bd;color:var(--gray-500);display:flex;flex-direction:column;height:200px;justify-content:center}.cart-empty-icon{font-size:3rem;margin-bottom:12px}.cart-item{align-items:center;border-bottom:1px solid #e9ecef;border-bottom:1px solid var(--gray-200);display:flex;padding:12px 16px}.cart-item-info{flex:1 1}.cart-item-name{font-size:.9rem;font-weight:500}.cart-item-price{color:#6c757d;color:var(--gray-600);font-size:.8rem}.cart-item-quantity{gap:8px}.cart-item-quantity,.qty-btn{align-items:center;display:flex}.qty-btn{background:#fff;border:1px solid #dee2e6;border:1px solid var(--gray-300);border-radius:50%;cursor:pointer;font-size:1rem;height:28px;justify-content:center;transition:all .2s ease;transition:var(--transition);width:28px}.qty-btn:hover{background:#f8f9fa;background:var(--gray-100);border-color:#2d5016;border-color:var(--primary)}.qty-value{font-weight:600;min-width:24px;text-align:center}.cart-item-total{font-weight:600;min-width:70px;text-align:right}.btn-remove-item{background:none;border:none;color:#ced4da;color:var(--gray-400);cursor:pointer;font-size:1.1rem;margin-left:8px;padding:4px}.btn-remove-item:hover{color:#dc3545;color:var(--danger)}.cart-summary{background:#fff;border-top:1px solid #dee2e6;border-top:1px solid var(--gray-300);padding:16px}.summary-row{display:flex;font-size:.9rem;justify-content:space-between;margin-bottom:8px}.summary-row.total{border-top:2px solid #dee2e6;border-top:2px solid var(--gray-300);font-size:1.25rem;font-weight:700;margin-top:8px;padding-top:8px}.checkout-buttons{display:flex;gap:10px;margin-top:16px}.btn-checkout{align-items:center;border:none;border-radius:8px;border-radius:var(--border-radius);cursor:pointer;display:flex;flex:1 1;font-size:1rem;font-weight:600;gap:8px;justify-content:center;padding:16px;transition:all .2s ease;transition:var(--transition)}.btn-checkout.card{background:#2d5016;background:var(--primary);color:#fff}.btn-checkout.card:hover{background:#1e3a0f;background:var(--primary-dark)}.btn-checkout.cash{background:#28a745;background:var(--success);color:#fff}.btn-checkout.cash:hover{background:#218838}.btn-checkout:disabled{cursor:not-allowed;opacity:.5}.modal-overlay{align-items:center;background:#00000080;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:1000}.modal{background:#fff;border-radius:8px;border-radius:var(--border-radius);box-shadow:0 4px 12px #00000026;box-shadow:var(--shadow-lg);max-height:90vh;max-width:500px;overflow-y:auto;width:90%}.modal-header{align-items:center;border-bottom:1px solid #dee2e6;border-bottom:1px solid var(--gray-300);display:flex;justify-content:space-between;padding:20px}.modal-header h2{font-size:1.25rem;font-weight:600}.modal-close{background:none;border:none;color:#adb5bd;color:var(--gray-500);cursor:pointer;font-size:1.5rem;line-height:1}.modal-close:hover{color:#212529;color:var(--gray-900)}.modal-body{padding:20px}.modal-footer{border-top:1px solid #dee2e6;border-top:1px solid var(--gray-300);display:flex;gap:10px;justify-content:flex-end;padding:16px 20px}.cash-payment{text-align:center}.payment-total{color:#2d5016;color:var(--primary);font-size:2.5rem;font-weight:700}.cash-input-group,.payment-total{margin-bottom:20px}.cash-input-group label{display:block;font-weight:500;margin-bottom:8px}.cash-input{border:2px solid #dee2e6;border:2px solid var(--gray-300);border-radius:8px;border-radius:var(--border-radius);font-size:1.5rem;padding:16px;text-align:center;width:100%}.cash-input:focus{border-color:#2d5016;border-color:var(--primary);outline:none}.quick-cash-buttons{grid-gap:10px;display:grid;gap:10px;grid-template-columns:repeat(3,1fr);margin-bottom:20px}.quick-cash-btn{background:#fff;border:1px solid #dee2e6;border:1px solid var(--gray-300);border-radius:8px;border-radius:var(--border-radius);cursor:pointer;font-size:1rem;font-weight:500;padding:12px;transition:all .2s ease;transition:var(--transition)}.quick-cash-btn:hover{border-color:#2d5016;border-color:var(--primary)}.change-display,.quick-cash-btn:hover{background:#f8f9fa;background:var(--gray-100)}.change-display{border-radius:8px;border-radius:var(--border-radius);font-size:1.5rem;margin-bottom:20px;padding:16px}.change-display.error{background:#f8d7da;color:#dc3545;color:var(--danger)}.change-display .label{color:#6c757d;color:var(--gray-600);font-size:.875rem}.change-display .value{font-weight:700}.card-payment{text-align:center}.payment-status{padding:40px 20px}.payment-status-icon{font-size:4rem;margin-bottom:20px}.payment-status-icon.processing{animation:pulse 1.5s infinite}.payment-status-message{font-size:1.25rem;font-weight:500;margin-bottom:10px}.payment-status-detail{color:#6c757d;color:var(--gray-600)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.order-complete{padding:20px;text-align:center}.order-complete-icon{color:#28a745;color:var(--success);font-size:4rem;margin-bottom:16px}.order-number{font-size:1.5rem;font-weight:700;margin-bottom:20px}.order-summary{background:#f8f9fa;background:var(--gray-100);border-radius:8px;border-radius:var(--border-radius);margin-bottom:20px;padding:16px;text-align:left}.order-summary-row{display:flex;justify-content:space-between;padding:4px 0}.order-summary-row.total{border-top:1px solid #dee2e6;border-top:1px solid var(--gray-300);font-weight:700;margin-top:8px;padding-top:8px}.login-page{align-items:center;background:linear-gradient(135deg,#2d5016,#1e3a0f);background:linear-gradient(135deg,var(--primary) 0,var(--primary-dark) 100%);display:flex;justify-content:center;min-height:100vh}.login-container{background:#fff;border-radius:8px;border-radius:var(--border-radius);box-shadow:0 4px 12px #00000026;box-shadow:var(--shadow-lg);max-width:400px;padding:40px;width:100%}.login-header{margin-bottom:30px;text-align:center}.login-header h1{color:#2d5016;color:var(--primary);font-size:1.5rem;margin-bottom:8px}.login-header p{color:#6c757d;color:var(--gray-600)}.form-group{margin-bottom:20px}.form-group label{display:block;font-weight:500;margin-bottom:8px}.form-control{border:1px solid #dee2e6;border:1px solid var(--gray-300);border-radius:8px;border-radius:var(--border-radius);font-size:1rem;padding:12px;width:100%}.form-control:focus{border-color:#2d5016;border-color:var(--primary);outline:none}.btn-login{background:#2d5016;background:var(--primary);border:none;border-radius:8px;border-radius:var(--border-radius);color:#fff;cursor:pointer;font-size:1rem;font-weight:600;padding:14px;transition:all .2s ease;transition:var(--transition);width:100%}.btn-login:hover{background:#1e3a0f;background:var(--primary-dark)}.btn-login:disabled{cursor:not-allowed;opacity:.5}.error-message{background:#f8d7da;border-radius:8px;border-radius:var(--border-radius);color:#dc3545;color:var(--danger);font-size:.9rem;margin-bottom:20px;padding:12px}.btn{border:none;border-radius:8px;border-radius:var(--border-radius);cursor:pointer;font-size:.9rem;font-weight:500;padding:10px 20px;transition:all .2s ease;transition:var(--transition)}.btn-primary{background:#2d5016;background:var(--primary);color:#fff}.btn-primary:hover{background:#1e3a0f;background:var(--primary-dark)}.btn-secondary{background:#e9ecef;background:var(--gray-200);color:#343a40;color:var(--gray-800)}.btn-secondary:hover{background:#dee2e6;background:var(--gray-300)}.btn-danger{background:#dc3545;background:var(--danger);color:#fff}.btn-danger:hover{background:#c82333}.btn-success{background:#28a745;background:var(--success);color:#fff}.btn-success:hover{background:#218838}.loading{align-items:center;color:#adb5bd;color:var(--gray-500);display:flex;justify-content:center;padding:40px}.spinner{animation:spin 1s linear infinite;border:3px solid #dee2e6;border-top-color:#2d5016;border:3px solid var(--gray-300);border-radius:50%;border-top-color:var(--primary);height:40px;margin-right:12px;width:40px}@keyframes spin{to{transform:rotate(1turn)}}.search-bar{background:#fff;border-bottom:1px solid #dee2e6;border-bottom:1px solid var(--gray-300);padding:12px 16px}.search-input{border:1px solid #dee2e6;border:1px solid var(--gray-300);border-radius:8px;border-radius:var(--border-radius);font-size:.9rem;padding:10px 16px;width:100%}.search-input:focus{border-color:#2d5016;border-color:var(--primary);outline:none}@media (max-width:1024px){.cart-panel{width:350px}.products-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}}@media (max-width:768px){.pos-layout{flex-direction:column}.cart-panel{height:50vh;width:100%}.products-panel{height:50vh}}
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