body {
            font-family: 'Inter', sans-serif;
        }
        .tab-button {
            transition: all 0.3s ease;
        }
        .tab-button.active {
            border-color: #4f46e5; /* indigo-600 */
            background-color: #eef2ff; /* indigo-50 */
            color: #4338ca; /* indigo-700 */
            font-weight: 600;
        }
        .tab-button:disabled {
            color: #9ca3af;
            border-color: transparent;
            cursor: not-allowed;
        }
        .low-stock-row {
            background-color: #fef2f2; /* red-50 */
        }
        .low-stock-text {
            color: #b91c1c; /* red-700 */
            font-weight: bold;
        }
        #reader {
            border: 2px solid #e5e7eb;
            border-radius: 0.5rem;
        }
        .payment-method-btn {
            border: 2px solid #d1d5db;
            transition: all 0.2s ease;
        }
        .payment-method-btn.active {
            border-color: #4f46e5;
            background-color: #eef2ff;
            color: #4338ca;
            font-weight: 600;
        }
        #pdv-search-results {
            position: absolute;
            z-index: 10;
            background-color: white;
            border: 1px solid #e5e7eb;
            border-radius: 0.375rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            width: 100%;
            max-height: 200px;
            overflow-y: auto;
        }