:root {
            --primary-color: #2c7da0;
            --secondary-color: #a9d6e5;
            --accent-color: #01497c;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
            --success-color: #28a745;
            --warning-color: #ffc107;
            --error-color: #dc3545;
            --network-green: #198754;
            --network-yellow: #ffc107;
            --network-orange: #fd7e14;
            --network-red: #dc3545;
            --network-blue: #0d6efd;
        }
         
        .page-header {
            background: linear-gradient(135deg, rgba(169, 214, 229, 0.4) 0%, rgba(44, 125, 160, 0.4) 100%);
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(44, 125, 160, 0.2);
            position: relative;
            overflow: hidden;      color: var(--text-color);
        }
         
        .breadcrumb {
            background-color: transparent;
            padding: 0.5rem 0;
            margin-bottom: 0.5rem;
        }
        
        .breadcrumb-item a {
            color: var(--text-muted);
            text-decoration: none;
        }
        
        .breadcrumb-item.active {
            color: var(--text-color);
        }
         
        /* Network Summary */
        .network-summary {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        
        .network-item {
            background: white;
            border-radius: 8px;
            padding: 1.5rem;
            border: 1px solid var(--border-color);
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        
        .network-item h4 {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }
        
        .network-item .value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        
        .network-item .detail {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }
         
        .network-info-box {
            background-color: rgba(13, 110, 253, 0.05);
            border-left: 3px solid var(--network-blue);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
         
        /* Responsive Adjustments */
        @media (max-width: 768px) { 
            .network-summary {
                grid-template-columns: 1fr;
            }
        }
        
        /* Toggle switch for test types */
        .test-types {
            display: flex;
            background-color: var(--light-gray);
            border-radius: 6px;
            padding: 4px;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        
        .type-btn {
            flex: 1;
            text-align: center;
            padding: 0.75rem;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.3s;
            font-weight: 600;
            min-width: 120px;
            margin: 2px;
        }
        
        .type-btn.active {
            background-color: var(--primary-color);
            color: white;
        }
        
        /* Network-specific styling */
        .network-alert {
            background-color: rgba(220, 53, 69, 0.1);
            border-left: 4px solid var(--error-color);
            padding: 1rem;
            margin: 1rem 0;
            border-radius: 0 4px 4px 0;
        }
        
        .excellent-range {
            color: var(--network-green);
            font-weight: 600;
        }
        
        .good-range {
            color: var(--network-blue);
            font-weight: 600;
        }
        
        .fair-range {
            color: var(--network-yellow);
            font-weight: 600;
        }
        
        .poor-range {
            color: var(--network-orange);
            font-weight: 600;
        }
        
        .critical-range {
            color: var(--network-red);
            font-weight: 600;
        }
        
        .reference-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        
        .reference-table th, .reference-table td {
            padding: 0.75rem;
            text-align: left;
            border: 1px solid var(--border-color);
        }
        
        .reference-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        
        .reference-table tr:nth-child(even) {
            background-color: rgba(44, 125, 160, 0.05);
        }
        
        .generating-indicator {
            display: none;
            text-align: center;
            padding: 1rem;
            color: var(--text-muted);
        }
        
        /* Test results styling */
        .test-results {
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            border-left: 5px solid;
        }
        
        .test-excellent {
            background-color: rgba(40, 167, 69, 0.1);
            border-left-color: var(--network-green);
        }
        
        .test-good {
            background-color: rgba(13, 110, 253, 0.1);
            border-left-color: var(--network-blue);
        }
        
        .test-fair {
            background-color: rgba(255, 193, 7, 0.1);
            border-left-color: var(--network-yellow);
        }
        
        .test-poor {
            background-color: rgba(253, 126, 20, 0.1);
            border-left-color: var(--network-orange);
        }
        
        .test-critical {
            background-color: rgba(220, 53, 69, 0.1);
            border-left-color: var(--network-red);
        }
        
        .network-chart-container {
            position: relative;
            height: 300px;
            width: 100%;
            margin: 1.5rem 0;
        }
        
        .status-indicator {
            display: inline-block;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            margin-right: 8px;
        }
        
        .status-excellent {
            background-color: var(--network-green);
        }
        
        .status-good {
            background-color: var(--network-blue);
        }
        
        .status-fair {
            background-color: var(--network-yellow);
        }
        
        .status-poor {
            background-color: var(--network-orange);
        }
        
        .status-critical {
            background-color: var(--network-red);
        }
        
        /* Ping animation */
        .ping-animation {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100px;
            margin: 1.5rem 0;
            position: relative;
        }
        
        .ping-dot {
            width: 20px;
            height: 20px;
            background-color: var(--primary-color);
            border-radius: 50%;
            position: absolute;
            animation: ping 1.5s infinite;
        }
        
        @keyframes ping {
            0% {
                transform: scale(0.1);
                opacity: 1;
            }
            100% {
                transform: scale(2);
                opacity: 0;
            }
        }
        
        /* Progress bar for test */
        .test-progress {
            height: 10px;
            background-color: #e9ecef;
            border-radius: 5px;
            margin: 1rem 0;
            overflow: hidden;
        }
        
        .test-progress-bar {
            height: 100%;
            background-color: var(--primary-color);
            width: 0%;
            transition: width 0.5s;
        }
        
        /* Server selection */
        .server-list {
            max-height: 200px;
            overflow-y: auto;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            margin-top: 0.5rem;
        }
        
        .server-item {
            padding: 0.75rem;
            border-bottom: 1px solid var(--border-color);
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .server-item:hover {
            background-color: var(--light-gray);
        }
        
        .server-item:last-child {
            border-bottom: none;
        }
        
        .server-item.selected {
            background-color: rgba(44, 125, 160, 0.1);
            border-left: 3px solid var(--primary-color);
        }
        
        .server-location {
            font-weight: 600;
            margin-bottom: 0.25rem;
        }
        
        .server-distance {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        
        /* Test history table */
        .history-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        
        .history-table th, .history-table td {
            padding: 0.75rem;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        
        .history-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        
        .history-table tr:hover {
            background-color: rgba(44, 125, 160, 0.05);
        }
        
        /* Test type content sections */
        .test-type-content {
            display: none;
            padding: 1rem;
            background-color: rgba(44, 125, 160, 0.05);
            border-radius: 8px;
            margin: 1rem 0;
            border-left: 3px solid var(--primary-color);
        }
        
        .test-type-content.active {
            display: block;
        }
        
        /* Test status indicator */
        .test-status {
            display: flex;
            align-items: center;
            margin: 1rem 0;
        }
        
        .test-status-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            margin-right: 10px;
        }
        
        .status-connecting {
            background-color: var(--warning-color);
            animation: pulse 1s infinite;
        }
        
        .status-testing {
            background-color: var(--primary-color);
            animation: pulse 0.5s infinite;
        }
        
        .status-complete {
            background-color: var(--success-color);
        }
        
        @keyframes pulse {
            0% { opacity: 0.5; }
            50% { opacity: 1; }
            100% { opacity: 0.5; }
        }
        
        /* Server details */
        .server-details {
            display: flex;
            align-items: center;
            margin: 1rem 0;
            padding: 1rem;
            background-color: var(--light-gray);
            border-radius: 8px;
        }
        
        .server-flag {
            font-size: 2rem;
            margin-right: 1rem;
        }
        
        .server-info h4 {
            margin-bottom: 0.25rem;
        }
        
        .server-info p {
            color: var(--text-muted);
            margin-bottom: 0;
            font-size: 0.9rem;
        }