: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;
            --danger-color: #dc3545;
            --info-color: #17a2b8;
        }
      
        .page-header {
            background: linear-gradient(135deg, rgba(255, 99, 71, 0.1) 0%, rgba(44, 125, 160, 0.4) 100%);
        }
         
        .test-area {
            width: 100%;
            height: 500px;
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 1.5rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: relative;
            transition: background-color 0.5s ease;
        }
        
        .test-info {
            position: absolute;
            top: 20px;
            left: 20px;
            background-color: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 15px;
            border-radius: 6px;
            max-width: 300px;
            z-index: 10;
        }
        
        .test-info h4 {
            margin-bottom: 0.5rem;
            color: white;
        }
        
        .test-info p {
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
        }
        
        .test-controls {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.5rem;
            align-items: center;
        }
        
        .control-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            align-items: center;
        }
        
        .test-btn {
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            transition: all 0.3s;
        }
        
        .test-btn-primary {
            background-color: var(--primary-color);
            color: white;
            border: none;
        }
        
        .test-btn-primary:hover {
            background-color: var(--accent-color);
            transform: translateY(-2px);
        }
        
        .test-btn-secondary {
            background-color: white;
            color: var(--text-color);
            border: 1px solid var(--border-color);
        }
        
        .test-btn-secondary:hover {
            background-color: var(--light-gray);
        }
        
        .test-btn-danger {
            background-color: var(--danger-color);
            color: white;
            border: none;
        }
        
        .test-btn-danger:hover {
            background-color: #c82333;
            transform: translateY(-2px);
        }
        
        .test-btn-info {
            background-color: var(--info-color);
            color: white;
            border: none;
        }
        
        .test-btn-info:hover {
            background-color: #138496;
            transform: translateY(-2px);
        }
        
        .test-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .test-card {
            background: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        
        .test-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0,0,0,0.1);
        }
        
        .test-card.active {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(44, 125, 160, 0.2);
        }
        
        .test-icon {
            font-size: 2rem;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }
        
        .test-card.active .test-icon {
            color: var(--accent-color);
        }
        
        .test-name {
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        
        .test-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        .test-status {
            background-color: var(--light-gray);
            border-radius: 6px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }
        
        .status-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }
        
        .status-badge {
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 600;
        }
        
        .badge-success {
            background-color: rgba(40, 167, 69, 0.1);
            color: var(--success-color);
            border: 1px solid rgba(40, 167, 69, 0.3);
        }
        
        .badge-warning {
            background-color: rgba(255, 193, 7, 0.1);
            color: var(--warning-color);
            border: 1px solid rgba(255, 193, 7, 0.3);
        }
        
        .badge-danger {
            background-color: rgba(220, 53, 69, 0.1);
            color: var(--danger-color);
            border: 1px solid rgba(220, 53, 69, 0.3);
        }
        
        .status-content {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }
        
        .status-item {
            flex: 1;
            min-width: 200px;
        }
        
        .status-label {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.25rem;
        }
        
        .status-value {
            font-weight: 600;
            font-size: 1.1rem;
        }
        
        .pixel-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
            gap: 2px;
            margin: 1.5rem 0;
            max-height: 300px;
            overflow-y: auto;
            padding: 10px;
            background-color: var(--light-gray);
            border-radius: 6px;
        }
        
        .pixel {
            width: 30px;
            height: 30px;
            border-radius: 2px;
            cursor: pointer;
            transition: all 0.2s;
            position: relative;
        }
        
        .pixel:hover {
            transform: scale(1.1);
            z-index: 2;
        }
        
        .pixel.dead::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 8px;
            height: 8px;
            background-color: var(--danger-color);
            border-radius: 50%;
        }
        
        .pixel.stuck::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 8px;
            height: 8px;
            background-color: var(--warning-color);
            border-radius: 50%;
        }
        
        .pixel.hot::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 8px;
            height: 8px;
            background-color: var(--info-color);
            border-radius: 50%;
        }
        
        .detected-pixel {
            display: flex;
            align-items: center;
            padding: 0.75rem;
            border-bottom: 1px solid var(--border-color);
        }
        
        .detected-pixel:last-child {
            border-bottom: none;
        }
        
        .pixel-marker {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            margin-right: 1rem;
        }
        
        .marker-dead {
            background-color: var(--danger-color);
        }
        
        .marker-stuck {
            background-color: var(--warning-color);
        }
        
        .marker-hot {
            background-color: var(--info-color);
        }
        
        .pixel-details {
            flex: 1;
        }
        
        .pixel-type {
            font-weight: 600;
            margin-bottom: 0.25rem;
        }
        
        .pixel-position {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        .pixel-actions {
            display: flex;
            gap: 0.5rem;
        }
        
        .pixel-action-btn {
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            font-size: 1rem;
        }
        
        .pixel-action-btn:hover {
            color: var(--primary-color);
        }
        
        .test-instructions {
            background-color: rgba(44, 125, 160, 0.05);
            border-left: 3px solid var(--primary-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        
        .pixel-legend {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 1.5rem 0;
        }
        
        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .legend-color {
            width: 16px;
            height: 16px;
            border-radius: 50%;
        }
        
        .legend-dead {
            background-color: var(--danger-color);
        }
        
        .legend-stuck {
            background-color: var(--warning-color);
        }
        
        .legend-hot {
            background-color: var(--info-color);
        }
        
        .fullscreen-mode {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            z-index: 9999;
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        
        .fullscreen-controls {
            position: fixed;
            bottom: 20px;
            left: 0;
            right: 0;
            display: flex;
            justify-content: center;
            gap: 1rem;
            z-index: 10000;
        }
        
        .fullscreen-close {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 10000;
            background-color: rgba(0,0,0,0.7);
            color: white;
            border: none;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }
        
        .fullscreen-info {
            position: fixed;
            top: 20px;
            left: 20px;
            background-color: rgba(0,0,0,0.7);
            color: white;
            padding: 15px;
            border-radius: 6px;
            max-width: 400px;
            z-index: 10000;
        }
        
        .auto-test-progress {
            margin: 1.5rem 0;
        }
        
        .progress-bar {
            height: 10px;
            border-radius: 5px;
            background-color: var(--light-gray);
            overflow: hidden;
            margin-bottom: 0.5rem;
        }
        
        .progress-fill {
            height: 100%;
            background-color: var(--primary-color);
            width: 0%;
            transition: width 0.5s ease;
        }
        
        .progress-text {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        
        .test-summary {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        
        .summary-card {
            background: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            text-align: center;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        
        .summary-value {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        
        .summary-label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        .summary-dead {
            color: var(--danger-color);
        }
        
        .summary-stuck {
            color: var(--warning-color);
        }
        
        .summary-hot {
            color: var(--info-color);
        }
        
        .summary-total {
            color: var(--primary-color);
        }
        
        @media (max-width: 768px) {
            .test-area {
                height: 400px;
            }
            
            .test-controls {
                flex-direction: column;
                align-items: stretch;
            }
            
            .test-grid {
                grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            }
            
            .status-content {
                flex-direction: column;
                gap: 1rem;
            }
        }
        
        @media (max-width: 576px) {
            .test-area {
                height: 300px;
            }
            
            .test-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .tool-card {
                padding: 1.5rem;
            }
        }