/* Paleta de cores baseada em #1A6159 */
        :root {
            --primary-color: #1A6159;
            --primary-light: #2A7A6F;
            --primary-dark: #0F4A42;
            --primary-lighter: #E8F4F2;
            --secondary-color: #4A9B8E;
            --accent-color: #6BB6A8;
            --success-color: #28a745;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
            --info-color: #17a2b8;
        }

        /* Estilos personalizados para a página */
        body {
            background-color: #f8f9fa;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: #333;
        }

        .main-container {
            max-width: 1200px;
            /* Largura reduzida e centralizada */
            margin: 1rem auto;
            padding: 0 1rem;
        }

        .instances-card {
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(26, 97, 89, 0.1);
            overflow: hidden;
            border: 1px solid var(--primary-lighter);
        }

        .card-header-custom {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
            color: white;
            padding: 1.5rem;
            border-bottom: none;
        }

        .card-header-custom h1 {
            margin: 0;
            font-weight: 600;
            font-size: 1.5rem;
        }

        .instance-count {
            opacity: 0.9;
            font-weight: 400;
        }

        .table-container {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .table {
            margin-bottom: 0;
            min-width: 800px;
            /* Largura mínima para scroll horizontal em mobile */
        }

        .table th {
            background-color: var(--primary-lighter);
            border-bottom: 2px solid var(--primary-color);
            font-weight: 600;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--primary-dark);
            padding: 1rem 1rem;
            white-space: nowrap;
        }

        .table td {
            padding: 1rem;
            vertical-align: middle;
            border-bottom: 1px solid #f1f3f4;
            white-space: nowrap;
        }

        .table tbody tr:hover {
            background-color: var(--primary-lighter);
            transition: background-color 0.15s ease;
        }

        .copy-btn {
            background: none;
            border: none;
            color: var(--secondary-color);
            cursor: pointer;
            padding: 0.25rem;
            border-radius: 4px;
            transition: all 0.15s ease;
        }

        .copy-btn:hover {
            color: var(--primary-color);
            background-color: var(--primary-lighter);
            transform: scale(1.1);
        }

        .token-text {
            font-family: 'Courier New', monospace;
            font-size: 0.9rem;
            color: var(--primary-dark);
        }

        .status-badge {
            font-size: 0.75rem;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .status-active {
            background: linear-gradient(135deg, var(--success-color), #34ce57);
            color: white;
            box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
        }

        .status-inactive {
            background: linear-gradient(135deg, var(--danger-color), #e55a6b);
            color: white;
            box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
        }

        .action-btn {
            font-size: 0.75rem;
            font-weight: 500;
            padding: 0.5rem 0.75rem;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: all 0.15s ease;
            margin: 0.125rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .action-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        .btn-qrcode {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
            color: white;
        }

        .btn-qrcode:hover {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
            color: white;
        }

        .btn-info {
            background: linear-gradient(135deg, var(--info-color), #20c997);
            color: white;
        }

        .btn-info:hover {
            background: linear-gradient(135deg, #138496, var(--info-color));
            color: white;
        }

        .btn-logout {
            background: linear-gradient(135deg, var(--danger-color), #e55a6b);
            color: white;
        }

        .btn-logout:hover {
            background: linear-gradient(135deg, #bb2d3b, var(--danger-color));
            color: white;
        }

        .btn-delete {
            background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
            color: white;
        }

        .btn-delete:hover {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
        }

        .add-instance-btn {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.15s ease;
            box-shadow: 0 4px 15px rgba(26, 97, 89, 0.3);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .add-instance-btn:hover {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26, 97, 89, 0.4);
        }

        .exit-btn {
            background: linear-gradient(135deg, var(--danger-color), #e55a6b);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.15s ease;
            box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-right: 1rem;
        }

        .exit-btn:hover {
            background: linear-gradient(135deg, #bb2d3b, var(--danger-color));
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(220, 53, 69, 0.4);
        }

        .empty-state {
            text-align: center;
            padding: 4rem 1.5rem;
            color: var(--secondary-color);
        }

        .empty-state i {
            font-size: 4rem;
            margin-bottom: 1rem;
            opacity: 0.5;
        }

        /* Estilos para o Modal QRCode */
        .qrcode-modal {
            background: linear-gradient(135deg, #f8f9fa, var(--primary-lighter));
            border: none;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(26, 97, 89, 0.15);
            overflow: hidden;
            max-width: 480px;
            width: 90%;
            margin: 0 auto;
        }

        .qrcode-modal-header {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
            color: white;
            padding: 2rem;
            text-align: center;
            border-bottom: none;
            position: relative;
        }

        .qrcode-modal-header h2 {
            margin: 0;
            font-weight: 600;
            font-size: 1.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
        }

        .qrcode-modal-header .subtitle {
            opacity: 0.9;
            font-weight: 400;
            font-size: 1rem;
            margin-top: 0.5rem;
        }

        .qrcode-modal-header .qr-icon {
            font-size: 2rem;
        }

        .qrcode-modal-body {
            padding: 2rem;
            background: white;
        }

        .qrcode-form-group {
            margin-bottom: 1.5rem;
        }

        .qrcode-form-label {
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
        }

        .qrcode-form-control {
            border: 2px solid #e9ecef;
            border-radius: 12px;
            padding: 1rem 1.25rem;
            font-size: 1rem;
            transition: all 0.3s ease;
            background-color: #fafbfc;
            width: 100%;
            box-sizing: border-box;
        }

        .qrcode-form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(26, 97, 89, 0.15);
            background-color: white;
            outline: none;
        }

        .qrcode-form-control::placeholder {
            color: #6c757d;
            opacity: 0.7;
        }

        .qrcode-form-text {
            font-size: 0.875rem;
            color: #6c757d;
            margin-top: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .qrcode-generate-btn {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(26, 97, 89, 0.3);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            width: 100%;
            position: relative;
            overflow: hidden;
        }

        .qrcode-generate-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26, 97, 89, 0.4);
        }

        .qrcode-generate-btn:active {
            transform: translateY(0);
        }

        .qrcode-generate-btn:disabled {
            background: linear-gradient(135deg, #cccccc, #b8b8b8);
            cursor: not-allowed;
            transform: none;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .qrcode-container {
            text-align: center;
            margin: 2rem 0;
            padding: 1.5rem;
            background: var(--primary-lighter);
            border-radius: 16px;
            border: 2px dashed var(--primary-color);
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            transition: all 0.3s ease;
        }

        .qrcode-container.has-content {
            background: white;
            border: 2px solid var(--primary-color);
            box-shadow: 0 4px 20px rgba(26, 97, 89, 0.1);
        }

        .qrcode-container img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            animation: zoomIn 0.5s ease-out;
        }

        .qrcode-placeholder {
            color: var(--secondary-color);
            font-size: 1rem;
            opacity: 0.7;
        }

        .qrcode-placeholder i {
            font-size: 3rem;
            margin-bottom: 1rem;
            opacity: 0.5;
        }

        .qrcode-loader {
            border: 4px solid var(--primary-lighter);
            border-top: 4px solid var(--primary-color);
            border-radius: 50%;
            width: 60px;
            height: 60px;
            animation: spin 1s linear infinite;
            margin: 0 auto;
            display: none;
        }

        .qrcode-timer-container {
            background: linear-gradient(135deg, var(--info-color), #20c997);
            color: white;
            padding: 1rem;
            border-radius: 12px;
            text-align: center;
            font-weight: 600;
            margin-top: 1rem;
            box-shadow: 0 4px 15px rgba(23, 162, 184, 0.3);
            display: none;
        }

        .qrcode-timer-container.show {
            display: block;
            animation: slideInUp 0.5s ease-out;
        }

        .qrcode-timer-container i {
            margin-right: 0.5rem;
        }

        .qrcode-connected-label {
            background: linear-gradient(135deg, var(--success-color), #34ce57);
            color: white;
            padding: 1.5rem;
            border-radius: 16px;
            text-align: center;
            font-weight: 600;
            font-size: 1.2rem;
            display: none;
            box-shadow: 0 4px 20px rgba(40, 167, 69, 0.3);
            animation: bounceIn 0.8s ease-out;
        }

        .qrcode-connected-label.show {
            display: block;
        }

        .qrcode-connected-label i {
            font-size: 2rem;
            margin-bottom: 0.5rem;
            display: block;
        }

        /* Customização do SweetAlert2 para seguir a paleta de cores */
        .swal2-popup {
            border-radius: 16px !important;
            box-shadow: 0 8px 32px rgba(26, 97, 89, 0.15) !important;
        }

        .swal2-title {
            color: var(--primary-dark) !important;
            font-weight: 600 !important;
        }

        .swal2-content {
            color: #555 !important;
        }

        .swal2-confirm {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-light)) !important;
            border: none !important;
            border-radius: 8px !important;
            font-weight: 600 !important;
            padding: 0.75rem 1.5rem !important;
            text-transform: uppercase !important;
            letter-spacing: 0.5px !important;
        }

        .swal2-confirm:hover {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-color)) !important;
        }

        .swal2-cancel {
            background: #6c757d !important;
            border: none !important;
            border-radius: 8px !important;
            font-weight: 600 !important;
            padding: 0.75rem 1.5rem !important;
            text-transform: uppercase !important;
            letter-spacing: 0.5px !important;
        }

        .swal2-deny {
            background: linear-gradient(135deg, var(--danger-color), #e55a6b) !important;
            border: none !important;
            border-radius: 8px !important;
            font-weight: 600 !important;
            padding: 0.75rem 1.5rem !important;
            text-transform: uppercase !important;
            letter-spacing: 0.5px !important;
        }

        .swal2-icon.swal2-success {
            border-color: var(--success-color) !important;
            color: var(--success-color) !important;
        }

        .swal2-icon.swal2-error {
            border-color: var(--danger-color) !important;
            color: var(--danger-color) !important;
        }

        .swal2-icon.swal2-warning {
            border-color: var(--warning-color) !important;
            color: var(--warning-color) !important;
        }

        .swal2-icon.swal2-info {
            border-color: var(--info-color) !important;
            color: var(--info-color) !important;
        }

        .swal2-icon.swal2-question {
            border-color: var(--primary-color) !important;
            color: var(--primary-color) !important;
        }

        /* Animações */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes zoomIn {
            from {
                opacity: 0;
                transform: scale(0.8);
            }

            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        @keyframes slideInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes bounceIn {
            0% {
                opacity: 0;
                transform: scale(0.3);
            }

            50% {
                opacity: 1;
                transform: scale(1.05);
            }

            70% {
                transform: scale(0.9);
            }

            100% {
                opacity: 1;
                transform: scale(1);
            }
        }

        @keyframes spin {
            0% {
                transform: rotate(0deg);
            }

            100% {
                transform: rotate(360deg);
            }
        }

        /* Responsividade completa */

        /* Tablets e dispositivos médios (768px - 991px) */
        @media (max-width: 991.98px) {
            .main-container {
                max-width: 100%;
                padding: 0 0.75rem;
            }

            .card-header-custom {
                padding: 1.25rem;
            }

            .card-header-custom h1 {
                font-size: 1.25rem;
            }

            .table th,
            .table td {
                padding: 0.75rem 0.5rem;
                font-size: 0.875rem;
            }

            .action-btn {
                font-size: 0.7rem;
                padding: 0.375rem 0.5rem;
                margin: 0.1rem;
            }

            .add-instance-btn,
            .exit-btn {
                padding: 0.875rem 1.5rem;
                font-size: 0.9rem;
            }

            /* Modal QRCode Responsivo */
            .qrcode-modal {
                max-width: 420px;
                width: 95%;
            }

            .qrcode-modal-header {
                padding: 1.75rem;
            }

            .qrcode-modal-header h2 {
                font-size: 1.5rem;
            }

            .qrcode-modal-body {
                padding: 1.75rem;
            }

            .qrcode-generate-btn {
                padding: 0.875rem 1.5rem;
                font-size: 0.95rem;
            }

            .qrcode-container {
                margin: 1.5rem 0;
                padding: 1.25rem;
                min-height: 180px;
            }
        }

        /* Smartphones (576px - 767px) */
        @media (max-width: 767.98px) {
            .main-container {
                margin: 0.5rem auto;
                padding: 0 0.5rem;
            }

            .instances-card {
                border-radius: 8px;
            }

            .card-header-custom {
                padding: 1rem;
                text-align: center;
            }

            .card-header-custom h1 {
                font-size: 1.1rem;
            }

            .table {
                min-width: 700px;
                /* Força scroll horizontal em telas pequenas */
            }

            .table th,
            .table td {
                padding: 0.5rem 0.375rem;
                font-size: 0.8rem;
            }

            .table th {
                font-size: 0.7rem;
            }

            .action-btn {
                font-size: 0.65rem;
                padding: 0.25rem 0.375rem;
                margin: 0.05rem;
                border-radius: 4px;
            }

            .status-badge {
                font-size: 0.7rem;
                padding: 0.375rem 0.75rem;
            }

            .token-text {
                font-size: 0.8rem;
            }

            .copy-btn {
                padding: 0.125rem;
            }

            .add-instance-btn,
            .exit-btn {
                width: 100%;
                padding: 0.75rem 1rem;
                font-size: 0.85rem;
                margin-top: 1rem;
                margin-right: 0;
            }

            .exit-btn {
                margin-bottom: 0.5rem;
            }

            .empty-state {
                padding: 2rem 1rem;
            }

            .empty-state i {
                font-size: 3rem;
            }

            /* Modal QRCode Mobile */
            .qrcode-modal {
                max-width: 100%;
                width: 95%;
                margin: 0.5rem;
                border-radius: 12px;
            }

            .qrcode-modal-header {
                padding: 1.5rem;
            }

            .qrcode-modal-header h2 {
                font-size: 1.35rem;
            }

            .qrcode-modal-header .subtitle {
                font-size: 0.9rem;
            }

            .qrcode-modal-body {
                padding: 1.5rem;
            }

            .qrcode-form-control {
                padding: 0.875rem 1rem;
                font-size: 0.95rem;
            }

            .qrcode-generate-btn {
                padding: 0.75rem 1.25rem;
                font-size: 0.9rem;
            }

            .qrcode-container {
                margin: 1.25rem 0;
                padding: 1rem;
                min-height: 160px;
                border-radius: 12px;
            }

            .qrcode-placeholder i {
                font-size: 2.5rem;
            }

            .qrcode-connected-label {
                padding: 1.25rem;
                font-size: 1.1rem;
                border-radius: 12px;
            }

            .qrcode-timer-container {
                padding: 0.875rem;
                font-size: 0.9rem;
            }
        }

        /* Smartphones pequenos (até 575px) */
        @media (max-width: 575.98px) {
            .main-container {
                margin: 0.25rem auto;
                padding: 0 0.25rem;
            }

            .card-header-custom {
                padding: 0.75rem;
            }

            .card-header-custom h1 {
                font-size: 1rem;
            }

            .table {
                min-width: 650px;
            }

            .table th,
            .table td {
                padding: 0.375rem 0.25rem;
                font-size: 0.75rem;
            }

            .table th {
                font-size: 0.65rem;
            }

            .action-btn {
                font-size: 0.6rem;
                padding: 0.2rem 0.3rem;
                margin: 0.025rem;
            }

            .status-badge {
                font-size: 0.65rem;
                padding: 0.25rem 0.5rem;
            }

            .token-text {
                font-size: 0.75rem;
            }

            .add-instance-btn,
            .exit-btn {
                font-size: 0.8rem;
                padding: 0.625rem 0.875rem;
            }

            /* Modal QRCode Pequeno */
            .qrcode-modal {
                width: 98%;
                margin: 0.25rem;
                border-radius: 8px;
            }

            .qrcode-modal-header {
                padding: 1.25rem;
            }

            .qrcode-modal-header h2 {
                font-size: 1.2rem;
            }

            .qrcode-modal-header .subtitle {
                font-size: 0.85rem;
            }

            .qrcode-modal-body {
                padding: 1.25rem;
            }

            .qrcode-form-control {
                padding: 0.75rem 0.875rem;
                font-size: 0.9rem;
                border-radius: 8px;
            }

            .qrcode-generate-btn {
                padding: 0.625rem 1rem;
                font-size: 0.85rem;
                border-radius: 8px;
            }

            .qrcode-container {
                margin: 1rem 0;
                padding: 0.875rem;
                min-height: 140px;
                border-radius: 8px;
            }

            .qrcode-placeholder {
                font-size: 0.9rem;
            }

            .qrcode-placeholder i {
                font-size: 2rem;
                margin-bottom: 0.75rem;
            }

            .qrcode-connected-label {
                padding: 1rem;
                font-size: 1rem;
                border-radius: 8px;
            }

            .qrcode-connected-label i {
                font-size: 1.5rem;
            }

            .qrcode-timer-container {
                padding: 0.75rem;
                font-size: 0.85rem;
                border-radius: 8px;
            }

            .qrcode-loader {
                width: 50px;
                height: 50px;
                border-width: 3px;
            }
        }

        /* Melhorias para acessibilidade e UX */
        .table-container::-webkit-scrollbar {
            height: 8px;
        }

        .table-container::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 4px;
        }

        .table-container::-webkit-scrollbar-thumb {
            background: var(--primary-color);
            border-radius: 4px;
        }

        .table-container::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }

        /* Animações suaves */
        * {
            transition: all 0.15s ease;
        }

        .instances-card {
            animation: fadeInUp 0.5s ease-out;
        }

        /* Estados de loading e interação */
        .loading {
            opacity: 0.7;
            pointer-events: none;
        }

        .btn:active {
            transform: scale(0.98);
        }

        /* Melhorias para toque em dispositivos móveis */
        @media (hover: none) and (pointer: coarse) {
            .action-btn {
                min-height: 44px;
                /* Tamanho mínimo recomendado para toque */
                min-width: 44px;
            }

            .copy-btn {
                min-height: 44px;
                min-width: 44px;
            }

            .qrcode-generate-btn {
                min-height: 48px;
            }

            .qrcode-form-control {
                min-height: 48px;
            }
        }

        /* Efeito de ripple para o botão QRCode */
        .qrcode-generate-btn {
            position: relative;
            overflow: hidden;
        }

        .qrcode-generate-btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }

        .qrcode-generate-btn:active::before {
            width: 300px;
            height: 300px;
        }

        /*.placeholder {
            color: #888;
            font-style: italic;
        }*/









        /* .table thead th {
            text-align: center !important;
            vertical-align: middle;
            background-color: #f8f9fa;
            border-bottom: 2px solid #dee2e6;
            font-weight: 600;
            padding: 1rem 0.75rem;
        }
        
        .table tbody td {
            text-align: center !important;
            vertical-align: middle;
            padding: 1rem 0.75rem;
        }

        .btn-group .btn {
            margin: 0 2px;
        } */