* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            min-height: 100vh;
        }

        /* Login Page Styles */
        .login-container {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
        }

        .login-box {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
            width: 400px;
            text-align: center;
        }

        .logo {
            color: #2a5298;
            font-size: 28px;
            font-weight: bold;
            margin-bottom: 10px;
        }

        .subtitle {
            color: #666;
            margin-bottom: 30px;
            font-size: 14px;
        }

        .form-group {
            margin-bottom: 20px;
            text-align: left;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #333;
            font-weight: 500;
        }

        .form-group input {
            width: 100%;
            padding: 12px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 14px;
            transition: border-color 0.3s;
        }

        .form-group input:focus {
            outline: none;
            border-color: #2a5298;
        }

        .login-btn {
            width: 100%;
            padding: 12px;
            background: linear-gradient(135deg, #2a5298 0%, #1e3c72 100%);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s;
        }

        .login-btn:hover {
            transform: translateY(-2px);
        }

        /* Dashboard Styles */
        .dashboard {
            display: none;
            background: #f8f9fa;
            min-height: 100vh;
        }

        .sidebar {
            width: 260px;
            background: #1e3c72;
            color: white;
            position: fixed;
            height: 100vh;
            overflow-y: auto;
            z-index: 1000;
        }

        .sidebar-header {
            padding: 20px;
            background: #2a5298;
            text-align: center;
        }

        .sidebar-header h2 {
            font-size: 20px;
            margin-bottom: 5px;
        }

        .sidebar-header p {
            font-size: 12px;
            opacity: 0.8;
        }

        .nav-menu {
            list-style: none;
            padding: 20px 0;
        }

        .nav-item {
            margin-bottom: 5px;
        }

        .nav-link {
            display: block;
            padding: 12px 20px;
            color: white;
            text-decoration: none;
            transition: all 0.3s;
            cursor: pointer;
        }

        .nav-link:hover, .nav-link.active {
            background: rgba(255,255,255,0.1);
            padding-left: 30px;
        }

        .main-content {
            margin-left: 260px;
            padding: 20px;
        }

        .header {
            background: white;
            padding: 15px 25px;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            margin-bottom: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .header h1 {
            color: #333;
            font-size: 24px;
        }

        .logout-btn {
            background: #dc3545;
            color: white;
            padding: 8px 16px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: background 0.3s;
        }

        .logout-btn:hover {
            background: #c82333;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }

        .stat-card {
            background: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            text-align: center;
            transition: transform 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-card.departments {
            border-left: 5px solid #17a2b8;
        }

        .stat-card.assets {
            border-left: 5px solid #28a745;
        }

        .stat-card.users {
            border-left: 5px solid #ffc107;
        }

        .stat-number {
            font-size: 36px;
            font-weight: bold;
            color: #333;
            margin-bottom: 10px;
        }

        .stat-label {
            color: #666;
            font-size: 14px;
            text-transform: uppercase;
        }

        .content-section {
            background: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            margin-bottom: 20px;
        }

        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }

        .section-header h3 {
            color: #333;
            font-size: 20px;
        }

        .btn-group {
            display: flex;
            gap: 10px;
        }

        .btn {
            padding: 8px 16px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 14px;
            transition: all 0.3s;
        }

        .btn-primary {
            background: #2a5298;
            color: white;
        }

        .btn-success {
            background: #28a745;
            color: white;
        }

        .btn-info {
            background: #17a2b8;
            color: white;
        }

        .btn:hover {
            transform: translateY(-2px);
            opacity: 0.9;
        }

        .search-bar {
            margin-bottom: 20px;
        }

        .search-bar input {
            width: 100%;
            max-width: 400px;
            padding: 10px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 14px;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .filter-bar .filter-label {
            font-weight: 500;
            color: #333;
        }
        .filter-bar input[type="date"] {
            padding: 8px 10px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 14px;
        }

        .table-container {
            overflow-x: auto;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 10px;
        }

        th, td {
            padding: 12px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }

        th {
            background: #f8f9fa;
            font-weight: 600;
            color: #333;
        }

        tr:hover {
            background: #f8f9fa;
        }

        .status-badge {
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }

        .status-available {
            background: #d4edda;
            color: #155724;
        }

        .status-assigned {
            background: #fff3cd;
            color: #856404;
        }

        .status-maintenance {
            background: #f8d7da;
            color: #721c24;
        }

        /* Modal Styles */
        .modal {
            display: none;
            position: fixed;
            z-index: 2000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
        }

        .modal-content {
            background: white;
            margin: 5% auto;
            padding: 30px;
            border-radius: 10px;
            width: 90%;
            max-width: 600px;
            max-height: 80vh;
            overflow-y: auto;
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }

        .modal-header h3 {
            color: #333;
            margin: 0;
        }

        .close {
            font-size: 28px;
            font-weight: bold;
            cursor: pointer;
            color: #999;
        }

        .close:hover {
            color: #333;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-bottom: 15px;
        }

        .form-group-modal {
            margin-bottom: 15px;
        }

        .form-group-modal label {
            display: block;
            margin-bottom: 5px;
            color: #333;
            font-weight: 500;
        }

        .form-group-modal input, 
        .form-group-modal select, 
        .form-group-modal textarea {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 14px;
        }

        .form-group-modal textarea {
            height: 80px;
            resize: vertical;
        }

        .hidden {
            display: none !important;
        }

        .page-indicator {
            text-align: center;
            margin-top: 20px;
            color: #666;
        }

        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
            margin-top: 15px;
        }

        .pagination button {
            padding: 8px 12px;
            border: 1px solid #ddd;
            background: white;
            cursor: pointer;
            border-radius: 5px;
        }

        .pagination button:hover {
            background: #f0f0f0;
        }

        .pagination button.active {
            background: #2a5298;
            color: white;
            border-color: #2a5298;
        }

        /* Menu toggle (hamburger) - hidden on desktop */
        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 8px;
            background: #2a5298;
            color: white;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: currentColor;
            border-radius: 1px;
            transition: transform 0.3s, opacity 0.3s;
        }
        .menu-toggle:hover {
            background: #1e3c72;
        }

        /* Sidebar overlay for mobile */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s;
        }
        .sidebar-overlay.active {
            opacity: 1;
        }

        /* Tablet (iPad, small laptop) */
        @media (max-width: 1024px) {
            .sidebar {
                width: 240px;
            }
            .main-content {
                margin-left: 240px;
                padding: 16px;
            }
            .content-section {
                padding: 20px;
            }
            table {
                font-size: 14px;
            }
            th, td {
                padding: 10px 8px;
            }
        }

        /* Tablet portrait & large phones */
        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }

            .sidebar {
                width: 280px;
                max-width: 85vw;
                transform: translateX(-100%);
                transition: transform 0.3s ease;
                box-shadow: 4px 0 20px rgba(0,0,0,0.15);
            }
            .sidebar.active {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: block;
                pointer-events: none;
            }
            .sidebar-overlay.active {
                pointer-events: auto;
            }

            .main-content {
                margin-left: 0;
                padding: 12px;
            }

            .header {
                padding: 12px 16px;
                gap: 10px;
                flex-wrap: wrap;
            }
            .header h1 {
                font-size: 18px;
                flex: 1;
                min-width: 0;
            }
            .logout-btn {
                padding: 8px 12px;
                font-size: 13px;
            }

            .section-header {
                flex-wrap: wrap;
                gap: 12px;
            }
            .section-header h3 {
                font-size: 18px;
                width: 100%;
            }
            .btn-group {
                flex-wrap: wrap;
            }
            .btn {
                padding: 8px 12px;
                font-size: 13px;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px;
            }
            .stat-number {
                font-size: 28px;
            }

            .content-section {
                padding: 16px;
            }

            .search-bar input {
                max-width: 100%;
            }

            .filter-bar {
                gap: 8px;
            }
            .filter-bar .filter-label {
                width: 100%;
                font-size: 14px;
            }
            .filter-bar input[type="date"] {
                min-width: 0;
                flex: 1;
            }

            .table-container {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                margin: 0 -16px;
                padding: 0 16px;
            }
            .table-container table {
                min-width: 600px;
            }
            th, td {
                padding: 10px 8px;
                font-size: 13px;
            }

            .form-row {
                grid-template-columns: 1fr;
            }

            .modal-content {
                margin: 10px auto;
                padding: 20px;
                width: 95%;
                max-height: 90vh;
            }
            .modal-header h3 {
                font-size: 18px;
            }
        }

        /* Mobile phones */
        @media (max-width: 480px) {
            .login-box {
                width: 100%;
                max-width: 100%;
                margin: 16px;
                padding: 24px 20px;
            }
            .logo {
                font-size: 22px;
            }

            .sidebar {
                width: 100%;
                max-width: 100%;
            }

            .main-content {
                padding: 10px;
            }
            .header h1 {
                font-size: 16px;
            }
            .menu-toggle {
                width: 40px;
                height: 40px;
            }
            .menu-toggle span {
                width: 18px;
            }

            .section-header h3 {
                font-size: 16px;
            }
            .btn-group .btn {
                width: 100%;
            }

            .stat-number {
                font-size: 24px;
            }
            .stat-label {
                font-size: 12px;
            }

            .filter-bar .btn {
                flex: 1;
                min-width: 0;
            }

            .table-container table {
                min-width: 500px;
            }
            th, td {
                padding: 8px 6px;
                font-size: 12px;
            }

            .modal-content {
                margin: 8px auto;
                padding: 16px;
                width: 98%;
            }
            .form-group-modal input,
            .form-group-modal select,
            .form-group-modal textarea {
                font-size: 16px; /* reduces zoom on focus in iOS */
            }
        }