    /* ===== RESPONSIVE.CSS - Mobile & Tablet Optimizations ===== */
    /* Add this file to your project and link it in your HTML after style.css */

    /* ===== BASE RESPONSIVE SETUP ===== */
    * {
        box-sizing: border-box;
    }

    body {
        overflow-x: hidden;
    }

    /* ===== HAMBURGER MENU BUTTON ===== */
    .hamburger-menu {
        display: none;
        flex-direction: column;
        justify-content: space-between;
        width: 24px;
        height: 18px;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0;
        z-index: 1001;
        transition: all 0.3s ease;
    }

    .hamburger-line {
        display: block;
        height: 2px;
        width: 100%;
        background-color: #4b5563;
        border-radius: 2px;
        transition: all 0.3s ease;
    }

    /* Hamburger Animation - X Shape */
    .hamburger-menu.active .hamburger-line:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger-menu.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .hamburger-menu.active .hamburger-line:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* ===== TABLET BREAKPOINT (768px - 1024px) ===== */
    @media (max-width: 1024px) {
        /* Dashboard adjustments */
        .dashboard-grid {
            grid-template-columns: repeat(2, 1fr) !important;
            gap: 1rem !important;
        }
        
        /* Form layouts */
        .form-row {
            grid-template-columns: 1fr !important;
        }
        
        /* Table improvements */
        .table-container {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        
        /* Modal sizing */
        .modal-content {
            width: 95% !important;
            max-width: 700px !important;
        }
    }

    /* ===== MOBILE BREAKPOINT (max-width: 768px) ===== */
    @media (max-width: 768px) {
        
        /* ===== NAVIGATION ===== */
        .hamburger-menu {
            display: flex;
            margin-left: auto;
            margin-right: 1rem;
        }

        .navbar {
            padding: 0 1rem;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-content {
            padding: 0.75rem 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .nav-brand {
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .nav-logo {
            height: 32px !important;
            width: auto;
        }

        /* Sidebar Navigation Menu */
        .nav-menu {
            position: fixed;
            top: 0;
            right: -280px;
            width: 280px;
            height: 100vh;
            background-color: white;
            box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
            display: flex !important; /* Override any display: flex from desktop */
            flex-direction: column;
            justify-content: flex-start;
            align-items: stretch;
            padding: 0;
            gap: 0;
            z-index: 1000;
            overflow-y: auto;
            transition: right 0.3s ease;
            transform: translateX(0); /* Ensure no transform interference */
        }

        .nav-menu.active {
            right: 0;
        }
        
        /* Force hide non-active menu items container on desktop */
        .navbar .nav-menu:not(.active) {
            display: none !important;
        }
        
        /* Show menu when hamburger is clicked */
        .navbar .nav-menu.active {
            display: flex !important;
        }

        /* Side Overlay (darkens background) */
        .nav-side-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        
        .nav-side-overlay.active {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
        }

        /* Navigation Items */
        .nav-menu > .nav-item {
            position: relative;
            background-color: white;
            padding: 1rem 1.5rem;
            border-bottom: 1px solid #f3f4f6;
            width: 100%;
            text-align: left;
            transition: all 0.2s ease;
            display: block;
            cursor: pointer;
        }

        .nav-menu > .nav-item:hover {
            background-color: #f9fafb;
        }

        .nav-menu > .nav-item.active {
            background-color: #eff6ff;
            color: #1e40af;
            border-left: 4px solid #3b82f6;
        }

        .nav-menu > .nav-item::after {
            display: none;
        }

        /* User Section in Mobile */
        .nav-user {
            margin-top: auto;
            border-top: 1px solid #e5e7eb;
            padding: 1rem;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .dropdown-menu {
            right: auto;
            left: 50%;
            transform: translateX(-50%);
        }

        /* ===== PAGE LAYOUT ===== */
        .app-container {
            padding: 0.5rem;
            margin-top: 0;
        }

        .main-content {
            padding: 1rem 0.5rem;
        }

        .page-header {
            margin-bottom: 1.5rem;
            padding: 0.9rem;
        }

        .page-header h1 {
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
            line-height: 1.2;
            text-shadow: #e5e7eb;
        }

        .page-header p {
            font-size: 0.875rem;
            color: #000000;
            font-weight: 500;
            text-shadow: #f9fafb;
        }

        .page-content {
            padding: 0;
        }

        /* ===== DASHBOARD ===== */
        .dashboard-grid {
            grid-template-columns: 1fr !important;
            gap: 1rem !important;
            padding: 0 0.5rem;
        }

        .dashboard-card {
            padding: 1.25rem 1rem !important;
        }

        .dashboard-card h3 {
            font-size: 1.75rem !important;
        }

        .dashboard-card p {
            font-size: 0.875rem;
        }

        /* ===== CARDS ===== */
        .card {
            margin-bottom: 1.5rem;
            border-radius: 0.5rem;
            overflow: hidden;
        }

        .card-header {
            padding: 1rem !important;
        }

        .card-header h3 {
            font-size: 1.125rem;
        }

        .card-body {
            padding: 1rem !important;
        }

        .card-header-content {
            flex-direction: column;
            align-items: flex-start !important;
            gap: 1rem;
        }

        .card-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            width: 100%;
        }

        .card-actions .btn-sm {
            flex: 1;
            min-width: 80px;
            font-size: 0.75rem;
            padding: 0.5rem 0.75rem;
        }

        .card-actions select.form-control,
        .card-actions input.form-control {
            width: 100% !important;
            margin-bottom: 0.5rem;
        }

        /* ===== PAGE ACTIONS ===== */
        .page-actions {
            flex-direction: column;
            align-items: stretch !important;
            gap: 1rem;
            margin-bottom: 1.5rem;
            padding: 0 0.5rem;
        }

        .action-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            width: 100%;
        }

        .action-buttons .btn {
            flex: 1;
            min-width: 120px;
            font-size: 0.875rem;
        }

        /* ===== BUTTONS ===== */
        .btn {
            padding: 0.75rem 1rem;
            font-size: 0.875rem;
            white-space: nowrap;
        }

        .btn-sm {
            padding: 0.5rem 0.75rem;
            font-size: 0.75rem;
        }

        .w-100 {
            width: 100% !important;
        }

        /* ===== FORMS ===== */
        .form-row {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .form-group {
            margin-bottom: 1rem;
            width: 100%;
        }

        .form-group label {
            font-size: 0.875rem;
            margin-bottom: 0.5rem;
            display: block;
            font-weight: 500;
        }

        .form-control {
            padding: 0.75rem;
            font-size: 0.875rem;
            width: 100%;
        }

        .form-actions {
            flex-direction: column-reverse;
            gap: 0.75rem;
            padding-top: 1rem;
            margin-top: 1rem;
        }

        .form-actions .btn {
            width: 100%;
        }

        /* ===== TABLES - FULLY SCROLLABLE ===== */
        .table-container {
            overflow-x: auto;
            overflow-y: visible;
            -webkit-overflow-scrolling: touch;
            margin: 1rem 0;
            border-radius: 0.5rem;
            width: 100%;
            position: relative;
        }

        /* All tables get minimum width for scrolling */
        .table {
            font-size: 0.75rem;
            min-width: 600px;
            width: 100%;
            display: table;
        }

        .table th,
        .table td {
            padding: 0.75rem 0.5rem;
            white-space: nowrap;
            min-width: 80px;
        }

        .table th {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            position: sticky;
            top: 0;
            background-color: var(--gray-50);
            z-index: 10;
        }

        /* Specific table minimum widths */
        .table-workorders {
            min-width: 900px;
        }

        .table-workorders th,
        .table-workorders td {
            padding: 0.75rem 0.5rem;
        }

        /* Products/Materials table */
        #productsTableBody,
        #inventoryTableBody,
        #ledgerTableBody,
        #bomTableBody,
        #planningTableBody,
        #reportsWorkOrdersBody {
            display: table-row-group;
        }

        /* Ensure parent tables have proper width */
        table {
            table-layout: auto;
        }

        /* Add scroll indicator shadow */
        .table-container::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 30px;
            background: linear-gradient(to left, rgba(0,0,0,0.1), transparent);
            pointer-events: none;
            opacity: 0;
            transition: opacity 0.3s;
        }

        .table-container:not(.scrolled-end)::after {
            opacity: 1;
        }

        /* Table Action Buttons */
        .table-action-btn {
            padding: 0.375rem 0.5rem;
            font-size: 0.7rem;
            margin-right: 0.25rem;
            margin-bottom: 0.25rem;
            display: inline-block;
        }

        /* Work Order Cells */
        .wo-cell-title {
            font-size: 0.75rem;
        }

        .wo-cell-subtitle {
            font-size: 0.65rem;
        }

        /* Badges */
        .priority-badge,
        .status-badge {
            font-size: 0.65rem;
            padding: 0.25rem 0.5rem;
        }

        /* ===== MODALS ===== */
        .modal {
            padding: 1rem;
            overflow-y: auto;
        }

        .modal-content {
            width: 95% !important;
            max-width: 100% !important;
            max-height: 90vh;
            margin: auto;
            display: flex;
            flex-direction: column;
        }

        .large-modal .modal-content {
            max-width: 100% !important;
        }

        .modal-header {
            padding: 1rem !important;
            flex-shrink: 0;
        }

        .modal-header h2 {
            font-size: 1.25rem;
        }

        .modal-body {
            padding: 1rem !important;
            max-height: calc(90vh - 150px);
            overflow-y: auto;
            overflow-x: hidden;
            flex: 1;
        }

        /* Tables inside modals must scroll */
        .modal-body .table-container {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            margin: 0.5rem 0;
        }

        .modal-body .table-responsive {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            width: 100%;
        }

        .modal-body table {
            min-width: 600px;
            width: 100%;
        }

        .modal-footer {
            padding: 1rem !important;
            flex-direction: column-reverse;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .modal-footer .btn {
            width: 100%;
        }

        .close {
            font-size: 1.5rem;
            padding: 0.5rem;
        }

        /* ===== BATCH MANAGEMENT ===== */
        .batch-summary-card {
            grid-template-columns: 1fr !important;
            gap: 0.75rem;
        }

        .batch-summary-item {
            padding: 0.75rem;
        }

        .batch-summary-item .label {
            font-size: 0.75rem;
        }

        .batch-summary-item .value {
            font-size: 0.875rem;
        }

        .batch-actions {
            flex-direction: column;
            gap: 0.75rem;
        }

        .batch-actions .btn {
            width: 100%;
        }

        .batch-calculation-card {
            padding: 1rem;
        }

        .batch-calculation-card h4 {
            font-size: 1rem;
        }

        .batches-list {
            margin-top: 1rem;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .batch-item {
            flex-direction: column;
            align-items: flex-start;
            gap: 0.5rem;
            padding: 1rem;
        }

        /* Batch table - ensure scrollability */
        #batchesTable {
            min-width: 800px;
            width: 100%;
        }

        #batchesTableBody tr {
            display: table-row;
        }

        #batchesTableBody td {
            padding: 0.75rem 0.5rem;
            white-space: nowrap;
        }

        /* Make sure table wrapper scrolls */
        .batches-list .table-responsive,
        .table-responsive {
            overflow-x: auto !important;
            -webkit-overflow-scrolling: touch;
            width: 100%;
            display: block;
        }

        /* ===== SEARCH BOX ===== */
        .search-box {
            margin-bottom: 1rem;
            padding: 0 0.5rem;
        }

        .search-box input {
            padding: 0.75rem;
            font-size: 0.875rem;
        }

        /* ===== INVENTORY PAGE ===== */
        #stockFilterInfo,
        #ledgerFilterInfo {
            font-size: 0.75rem;
            padding: 0.5rem;
        }

        /* ===== MATERIAL PLANNING ===== */
        #planningTableBody td {
            font-size: 0.75rem;
        }

        /* ===== REPORTS PAGE ===== */
        #paginationContainer {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            justify-content: center;
            padding: 1rem 0.5rem;
        }

        /* ===== BOM ITEMS ===== */
        .bom-items {
            margin-top: 1rem;
        }

        .bom-items h4 {
            font-size: 1rem;
            margin-bottom: 1rem;
        }

        #bomItemsList {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        /* ===== CONFIRMATION DIALOG ===== */
        .confirm-content {
            width: 90% !important;
            max-width: 350px;
            padding: 1.5rem !important;
        }

        .confirm-message {
            font-size: 0.875rem;
            margin-bottom: 1.5rem;
        }

        .confirm-buttons {
            flex-direction: column-reverse;
            gap: 0.5rem;
        }

        .confirm-buttons .btn {
            width: 100%;
        }

        /* ===== LOADING OVERLAY ===== */
        .loading-overlay {
            padding: 1rem;
        }

        .spinner {
            width: 35px;
            height: 35px;
        }

        .loading-overlay p {
            font-size: 0.875rem;
        }

        /* ===== UTILITY CLASSES ===== */
        .text-muted {
            font-size: 0.875rem;
        }

        .small {
            font-size: 0.75rem;
        }

        /* Hide desktop-only elements */
        .desktop-only {
            display: none !important;
        }

        /* Show mobile-only elements */
        .mobile-only {
            display: block !important;
        }
    }

    /* ===== SMALL MOBILE BREAKPOINT (max-width: 480px) ===== */
    @media (max-width: 480px) {
        /* Full-width sidebar */
        .nav-menu {
            width: 100%;
            right: -100%;
        }

        .nav-brand {
            font-size: 0.875rem;
        }

        .nav-logo {
            height: 28px !important;
        }

        /* Smaller text */
        .page-header h1 {
            font-size: 1.25rem;
        }

        .dashboard-card h3 {
            font-size: 1.5rem !important;
        }

        /* Compact tables */
        .table {
            font-size: 0.7rem;
        }

        .table th,
        .table td {
            padding: 0.5rem 0.375rem;
        }

        /* Compact buttons */
        .btn {
            padding: 0.625rem 0.875rem;
            font-size: 0.8125rem;
        }

        .btn-sm {
            padding: 0.375rem 0.625rem;
            font-size: 0.7rem;
        }

        /* Modal adjustments */
        .modal {
            padding: 0.5rem;
        }

        .modal-content {
            width: 100% !important;
            border-radius: 0.5rem;
        }

        .modal-header h2 {
            font-size: 1.125rem;
        }

        /* Form controls */
        .form-control {
            padding: 0.625rem;
            font-size: 0.8125rem;
        }

        /* Card actions - stack vertically */
        .card-actions {
            flex-direction: column;
        }

        .card-actions .btn-sm,
        .card-actions select,
        .card-actions input {
            width: 100% !important;
        }
    }

    /* ===== LANDSCAPE MOBILE (max-height: 500px) ===== */
    @media (max-height: 500px) and (orientation: landscape) {
        .modal-body {
            max-height: 60vh;
        }

        .nav-menu {
            overflow-y: scroll;
        }
    }

    /* ===== PRINT STYLES ===== */
    @media print {
        .navbar,
        .hamburger-menu,
        .page-actions,
        .card-actions,
        .btn,
        .modal,
        .loading-overlay,
        .nav-side-overlay {
            display: none !important;
        }

        .table-container {
            overflow: visible;
        }

        .table {
            font-size: 10pt;
        }

        body {
            print-color-adjust: exact;
            -webkit-print-color-adjust: exact;
        }
    }