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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Advanced Neural Network Visualizer | Model Fine-Tuning</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
    <style>
        .neuron {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            position: relative;
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
        }
        
        .layer {
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: center;
            position: relative;
        }
        
        .connection {
            position: absolute;
            background: rgba(156, 163, 175, 0.3);
            transform-origin: 0 0;
            z-index: -1;
            transition: all 0.3s ease;
        }
        
        .connection.active {
            background: rgba(16, 185, 129, 0.6);
            height: 2px;
        }
        
        .code-editor {
            font-family: 'Courier New', monospace;
            font-size: 14px;
            line-height: 1.5;
            tab-size: 4;
        }
        
        .sidebar-item:hover {
            background-color: rgba(55, 65, 81, 0.5);
        }
        
        .jupyter-cell {
            border-left: 4px solid #3b82f6;
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        .jupyter-output {
            background-color: rgba(31, 41, 55, 0.7);
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        .draggable {
            cursor: move;
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        .resizable {
            resize: horizontal;
            overflow: auto;
        }
        
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }
        
        .animate-pulse {
            animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }
        
        .model-card {
            transition: all 0.2s ease;
        }
        
        .model-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
        }
        
        .model-card.selected {
            border-color: #3b82f6;
            background-color: rgba(59, 130, 246, 0.1);
        }
        
        .language-tag {
            transition: all 0.2s ease;
        }
        
        .language-tag:hover {
            transform: scale(1.05);
        }
        
        .language-tag.selected {
            background-color: #3b82f6;
            color: white;
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        .param-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: #3b82f6;
            cursor: pointer;
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        .param-slider::-moz-range-thumb {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: #3b82f6;
            cursor: pointer;
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        .tab-button {
            transition: all 0.2s ease;
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        .tab-button.active {
            border-bottom: 2px solid #3b82f6;
            color: #3b82f6;
        }
        
        .activation-node {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            position: absolute;
            bottom: -6px;
            left: 50%;
            transform: translateX(-50%);
        }
    </style>
</head>
<body class="bg-gray-900 text-gray-200 h-screen flex flex-col overflow-hidden">
    <!-- Top Menu Bar -->
    <div class="bg-gray-800 px-4 py-2 flex items-center justify-between border-b border-gray-700">
        <div class="flex items-center space-x-4">
            <span class="font-bold text-blue-400 flex items-center">
                <i class="fas fa-brain mr-2"></i>
                <span>Neural Visualizer Pro</span>
            </span>
            <div class="flex space-x-2 text-sm">
                <button class="px-2 py-1 hover:bg-gray-700 rounded">File</button>
                <button class="px-2 py-1 hover:bg-gray-700 rounded">Edit</button>
                <button class="px-2 py-1 hover:bg-gray-700 rounded">View</button>
                <button class="px-2 py-1 hover:bg-gray-700 rounded">Run</button>
                <button class="px-2 py-1 hover:bg-gray-700 rounded">Help</button>
            </div>
        </div>
        <div class="flex items-center space-x-3">
            <span class="text-xs text-gray-400">Interactive Mode</span>
            <div class="w-3 h-3 rounded-full bg-green-500 animate-pulse"></div>
            <button class="text-xs px-3 py-1 bg-blue-600 rounded hover:bg-blue-700">
                <i class="fas fa-cloud-upload-alt mr-1"></i> Save Model
            </button>
        </div>
    </div>
    
    <div class="flex flex-1 overflow-hidden">
        <!-- Sidebar -->
        <div class="w-16 bg-gray-800 flex flex-col items-center py-4 border-r border-gray-700">
            <button class="sidebar-item w-12 h-12 rounded-lg flex items-center justify-center mb-4 bg-gray-700 text-blue-400">
                <i class="fas fa-project-diagram text-xl"></i>
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            <button class="sidebar-item w-12 h-12 rounded-lg flex items-center justify-center mb-4 hover:text-blue-400">
                <i class="fas fa-layer-group text-xl"></i>
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            <button class="sidebar-item w-12 h-12 rounded-lg flex items-center justify-center mb-4 hover:text-blue-400">
                <i class="fas fa-sliders-h text-xl"></i>
            </button>
            <button class="sidebar-item w-12 h-12 rounded-lg flex items-center justify-center mb-4 hover:text-blue-400">
                <i class="fas fa-chart-line text-xl"></i>
            </button>
            <button class="sidebar-item w-12 h-12 rounded-lg flex items-center justify-center mb-4 hover:text-blue-400">
                <i class="fas fa-language text-xl"></i>
            </button>
            <div class="mt-auto">
                <button class="sidebar-item w-12 h-12 rounded-lg flex items-center justify-center mb-4 hover:text-blue-400">
                    <i class="fas fa-cog text-xl"></i>
                </button>
            </div>
        </div>
        
        <!-- Main Content -->
        <div class="flex-1 flex overflow-hidden">
            <!-- Editor Panel -->
            <div class="w-1/2 flex flex-col border-r border-gray-700">
                <div class="bg-gray-800 px-4 py-2 flex items-center justify-between">
                    <div class="flex items-center space-x-2">
                        <i class="fas fa-file-code text-blue-400"></i>
                        <span class="text-sm">model_config.py</span>
                    </div>
                    <div class="flex space-x-2">
                        <button class="text-xs px-2 py-1 bg-blue-600 rounded hover:bg-blue-700">
                            <i class="fas fa-play mr-1"></i> Run
                        </button>
                        <button class="text-xs px-2 py-1 bg-gray-700 rounded hover:bg-gray-600">
                            <i class="fas fa-terminal mr-1"></i> Console
                        </button>
                    </div>
                </div>
                
                <div class="flex-1 overflow-auto bg-gray-900 p-4 code-editor">
                    <!-- Model Selection Tabs -->
                    <div class="flex border-b border-gray-700 mb-4">
                        <button class="tab-button px-4 py-2 text-sm font-medium active" data-tab="config">
                            <i class="fas fa-cog mr-2"></i>Configuration
                        </button>
                        <button class="tab-button px-4 py-2 text-sm font-medium" data-tab="training">
                            <i class="fas fa-running mr-2"></i>Training
                        </button>
                        <button class="tab-button px-4 py-2 text-sm font-medium" data-tab="fine-tuning">
                            <i class="fas fa-magic mr-2"></i>Fine-Tuning
                        </button>
                    </div>
                    
                    <!-- Config Tab Content -->
                    <div id="config-tab" class="tab-content">
                        <div class="jupyter-cell mb-4 pl-2">
                            <div class="text-green-400"># Model Configuration</div>
                            <div class="text-gray-500"># Select a base model and customize parameters</div>
                        </div>
                        
                        <div class="jupyter-cell mb-4 pl-2">
                            <div class="text-purple-400">from</div> <div class="text-gray-200">transformers</div> <div class="text-purple-400">import</div> <div class="text-gray-200">AutoModelForSequenceClassification</div>
                        </div>
                        
                        <div class="jupyter-cell mb-4 pl-2">
                            <div class="text-yellow-400 mb-2"># Available Models (click to select)</div>
                            <div class="grid grid-cols-3 gap-4 mb-4">
                                <div class="model-card p-4 border border-gray-700 rounded-lg cursor-pointer bg-gray-800 selected" data-model="llama-2">
                                    <div class="flex items-center mb-2">
                                        <i class="fas fa-robot text-blue-400 mr-2"></i>
                                        <span class="font-medium">LLaMA 2</span>
                                    </div>
                                    <div class="text-xs text-gray-400">7B parameters</div>
                                    <div class="text-xs text-gray-400">Context: 4096</div>
                                </div>
                                <div class="model-card p-4 border border-gray-700 rounded-lg cursor-pointer bg-gray-800" data-model="gpt-3">
                                    <div class="flex items-center mb-2">
                                        <i class="fas fa-brain text-purple-400 mr-2"></i>
                                        <span class="font-medium">GPT-3.5</span>
                                    </div>
                                    <div class="text-xs text-gray-400">175B parameters</div>
                                    <div class="text-xs text-gray-400">Context: 4096</div>
                                </div>
                                <div class="model-card p-4 border border-gray-700 rounded-lg cursor-pointer bg-gray-800" data-model="bert">
                                    <div class="flex items-center mb-2">
                                        <i class="fas fa-shield-alt text-green-400 mr-2"></i>
                                        <span class="font-medium">BERT</span>
                                    </div>
                                    <div class="text-xs text-gray-400">340M parameters</div>
                                    <div class="text-xs text-gray-400">Context: 512</div>
                                </div>
                            </div>
                        </div>
                        
                        <div class="jupyter-cell mb-4 pl-2">
                            <div class="text-yellow-400 mb-2"># Model Parameters</div>
                            <div class="space-y-4">
                                <div>
                                    <label class="block text-sm text-gray-400 mb-1">Learning Rate</label>
                                    <div class="flex items-center space-x-4">
                                        <input type="range" min="0.0001" max="0.01" step="0.0001" value="0.001" class="param-slider w-full h-2 bg-gray-700 rounded-lg appearance-none cursor-pointer">
                                        <span class="text-xs bg-gray-800 px-2 py-1 rounded">0.001</span>
                                    </div>
                                </div>
                                <div>
                                    <label class="block text-sm text-gray-400 mb-1">Batch Size</label>
                                    <div class="flex items-center space-x-4">
                                        <input type="range" min="8" max="128" step="8" value="32" class="param-slider w-full h-2 bg-gray-700 rounded-lg appearance-none cursor-pointer">
                                        <span class="text-xs bg-gray-800 px-2 py-1 rounded">32</span>
                                    </div>
                                </div>
                                <div>
                                    <label class="block text-sm text-gray-400 mb-1">Epochs</label>
                                    <div class="flex items-center space-x-4">
                                        <input type="range" min="1" max="50" step="1" value="10" class="param-slider w-full h-2 bg-gray-700 rounded-lg appearance-none cursor-pointer">
                                        <span class="text-xs bg-gray-800 px-2 py-1 rounded">10</span>
                                    </div>
                                </div>
                                <div>
                                    <label class="block text-sm text-gray-400 mb-1">Dropout Rate</label>
                                    <div class="flex items-center space-x-4">
                                        <input type="range" min="0" max="0.5" step="0.05" value="0.1" class="param-slider w-full h-2 bg-gray-700 rounded-lg appearance-none cursor-pointer">
                                        <span class="text-xs bg-gray-800 px-2 py-1 rounded">0.1</span>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                    
                    <!-- Training Tab Content -->
                    <div id="training-tab" class="tab-content hidden">
                        <div class="jupyter-cell mb-4 pl-2">
                            <div class="text-green-400"># Training Configuration</div>
                            <div class="text-gray-500"># Set up your training parameters and data</div>
                        </div>
                        
                        <div class="jupyter-cell mb-4 pl-2">
                            <div class="text-yellow-400 mb-2"># Dataset Selection</div>
                            <select class="w-full bg-gray-800 border border-gray-700 rounded px-3 py-2 text-sm mb-4">
                                <option>Custom Dataset</option>
                                <option>GLUE Benchmark</option>
                                <option>SQuAD 2.0</option>
                                <option>IMDB Reviews</option>
                                <option>Swahili News Dataset</option>
                            </select>
                            
                            <div class="text-sm text-gray-400 mb-2">Or upload your own dataset:</div>
                            <div class="border-2 border-dashed border-gray-700 rounded-lg p-4 text-center cursor-pointer hover:bg-gray-800 mb-4">
                                <i class="fas fa-cloud-upload-alt text-2xl text-blue-400 mb-2"></i>
                                <div class="text-sm">Click to upload or drag and drop</div>
                                <div class="text-xs text-gray-500 mt-1">CSV, JSON, or TXT files</div>
                            </div>
                        </div>
                        
                        <div class="jupyter-cell mb-4 pl-2">
                            <div class="text-yellow-400 mb-2"># Training Options</div>
                            <div class="space-y-3">
                                <label class="flex items-center space-x-2 cursor-pointer">
                                    <input type="checkbox" class="form-checkbox text-blue-500 rounded" checked>
                                    <span class="text-sm">Use mixed precision training</span>
                                </label>
                                <label class="flex items-center space-x-2 cursor-pointer">
                                    <input type="checkbox" class="form-checkbox text-blue-500 rounded">
                                    <span class="text-sm">Enable gradient checkpointing</span>
                                </label>
                                <label class="flex items-center space-x-2 cursor-pointer">
                                    <input type="checkbox" class="form-checkbox text-blue-500 rounded" checked>
                                    <span class="text-sm">Use learning rate scheduling</span>
                                </label>
                                <label class="flex items-center space-x-2 cursor-pointer">
                                    <input type="checkbox" class="form-checkbox text-blue-500 rounded">
                                    <span class="text-sm">Enable early stopping</span>
                                </label>
                            </div>
                        </div>
                    </div>
                    
                    <!-- Fine-Tuning Tab Content -->
                    <div id="fine-tuning-tab" class="tab-content hidden">
                        <div class="jupyter-cell mb-4 pl-2">
                            <div class="text-green-400"># Fine-Tuning Options</div>
                            <div class="text-gray-500"># Customize for specific languages or domains</div>
                        </div>
                        
                        <div class="jupyter-cell mb-4 pl-2">
                            <div class="text-yellow-400 mb-2"># Language Specialization</div>
                            <div class="flex flex-wrap gap-2 mb-4">
                                <div class="language-tag px-3 py-1 bg-gray-800 rounded-full text-xs cursor-pointer selected" data-lang="en">
                                    <i class="fas fa-check-circle mr-1"></i> English
                                </div>
                                <div class="language-tag px-3 py-1 bg-gray-800 rounded-full text-xs cursor-pointer" data-lang="sw">
                                    <i class="fas fa-globe-africa mr-1"></i> Swahili
                                </div>
                                <div class="language-tag px-3 py-1 bg-gray-800 rounded-full text-xs cursor-pointer" data-lang="fr">
                                    <i class="fas fa-baguette mr-1"></i> French
                                </div>
                                <div class="language-tag px-3 py-1 bg-gray-800 rounded-full text-xs cursor-pointer" data-lang="es">
                                    <i class="fas fa-sun mr-1"></i> Spanish
                                </div>
                                <div class="language-tag px-3 py-1 bg-gray-800 rounded-full text-xs cursor-pointer" data-lang="de">
                                    <i class="fas fa-landmark mr-1"></i> German
                                </div>
                                <div class="language-tag px-3 py-1 bg-gray-800 rounded-full text-xs cursor-pointer" data-lang="zh">
                                    <i class="fas fa-yin-yang mr-1"></i> Chinese
                                </div>
                            </div>
                            
                            <div class="text-sm text-gray-400 mb-2">Custom tokenizer for selected language:</div>
                            <textarea class="w-full bg-gray-800 border border-gray-700 rounded px-3 py-2 text-sm h-20 mb-4" placeholder="Add special tokens or vocabulary for your language..."></textarea>
                        </div>
                        
                        <div class="jupyter-cell mb-4 pl-2">
                            <div class="text-yellow-400 mb-2"># Domain Adaptation</div>
                            <select class="w-full bg-gray-800 border border-gray-700 rounded px-3 py-2 text-sm mb-4">
                                <option>General Language</option>
                                <option>Medical</option>
                                <option>Legal</option>
                                <option>Financial</option>
                                <option>Technical</option>
                                <option>News</option>
                            </select>
                            
                            <div class="text-sm text-gray-400 mb-2">Domain-specific vocabulary:</div>
                            <textarea class="w-full bg-gray-800 border border-gray-700 rounded px-3 py-2 text-sm h-20" placeholder="Add domain-specific terms..."></textarea>
                        </div>
                    </div>
                </div>
                
                <div class="bg-gray-800 px-4 py-2 border-t border-gray-700">
                    <div class="flex items-center space-x-2 text-xs">
                        <span>Python 3.10.6</span>
                        <span class="text-gray-500"></span>
                        <span>PyTorch 2.0.1</span>
                        <span class="text-gray-500"></span>
                        <span>Transformers 4.30.2</span>
                    </div>
                </div>
            </div>
            
            <!-- Visualization Panel -->
            <div class="w-1/2 flex flex-col">
                <div class="bg-gray-800 px-4 py-2 flex items-center justify-between">
                    <div class="flex items-center space-x-2">
                        <i class="fas fa-project-diagram text-blue-400"></i>
                        <span class="text-sm">Model Visualization & Training</span>
                    </div>
                    <div class="flex space-x-2">
                        <button class="text-xs px-2 py-1 bg-gray-700 rounded hover:bg-gray-600">
                            <i class="fas fa-sync-alt mr-1"></i> Refresh
                        </button>
                        <button class="text-xs px-2 py-1 bg-gray-700 rounded hover:bg-gray-600">
                            <i class="fas fa-expand mr-1"></i> Fullscreen
                        </button>
                        <button class="text-xs px-2 py-1 bg-blue-600 rounded hover:bg-blue-700">
                            <i class="fas fa-rocket mr-1"></i> Deploy
                        </button>
                    </div>
                </div>
                
                <div class="flex-1 overflow-auto bg-gray-900 p-8 flex flex-col">
                    <!-- Model Architecture Visualization -->
                    <div class="mb-8">
                        <div class="text-lg font-medium mb-4 flex items-center">
                            <i class="fas fa-network-wired text-blue-400 mr-2"></i>
                            <span>Model Architecture</span>
                        </div>
                        <div class="bg-gray-800 rounded-lg p-6">
                            <div class="flex items-center justify-center space-x-8" id="network-container">
                                <!-- Network visualization will be rendered here -->
                            </div>
                        </div>
                    </div>
                    
                    <!-- Training Controls -->
                    <div class="mb-8">
                        <div class="text-lg font-medium mb-4 flex items-center">
                            <i class="fas fa-running text-green-400 mr-2"></i>
                            <span>Training Controls</span>
                        </div>
                        <div class="bg-gray-800 rounded-lg p-6">
                            <div class="grid grid-cols-3 gap-6 mb-6">
                                <div>
                                    <label class="block text-sm text-gray-400 mb-2">Current Epoch</label>
                                    <div class="text-2xl font-bold text-center">0</div>
                                </div>
                                <div>
                                    <label class="block text-sm text-gray-400 mb-2">Training Loss</label>
                                    <div class="text-2xl font-bold text-center">-</div>
                                </div>
                                <div>
                                    <label class="block text-sm text-gray-400 mb-2">Validation Loss</label>
                                    <div class="text-2xl font-bold text-center">-</div>
                                </div>
                            </div>
                            
                            <div class="flex space-x-4">
                                <button class="flex-1 py-2 bg-green-600 rounded hover:bg-green-700 flex items-center justify-center">
                                    <i class="fas fa-play mr-2"></i> Start Training
                                </button>
                                <button class="flex-1 py-2 bg-yellow-600 rounded hover:bg-yellow-700 flex items-center justify-center" disabled>
                                    <i class="fas fa-pause mr-2"></i> Pause
                                </button>
                                <button class="flex-1 py-2 bg-red-600 rounded hover:bg-red-700 flex items-center justify-center" disabled>
                                    <i class="fas fa-stop mr-2"></i> Stop
                                </button>
                            </div>
                        </div>
                    </div>
                    
                    <!-- Training Progress Charts -->
                    <div class="mb-8">
                        <div class="text-lg font-medium mb-4 flex items-center">
                            <i class="fas fa-chart-line text-purple-400 mr-2"></i>
                            <span>Training Metrics</span>
                        </div>
                        <div class="grid grid-cols-2 gap-6">
                            <div class="bg-gray-800 rounded-lg p-4">
                                <canvas id="training-chart" height="200"></canvas>
                            </div>
                            <div class="bg-gray-800 rounded-lg p-4">
                                <canvas id="metrics-chart" height="200"></canvas>
                            </div>
                        </div>
                    </div>
                    
                    <!-- Fine-Tuning Progress -->
                    <div>
                        <div class="text-lg font-medium mb-4 flex items-center">
                            <i class="fas fa-magic text-pink-400 mr-2"></i>
                            <span>Fine-Tuning Progress</span>
                        </div>
                        <div class="bg-gray-800 rounded-lg p-6">
                            <div class="mb-4">
                                <div class="flex justify-between text-sm mb-1">
                                    <span>Language Adaptation (Swahili)</span>
                                    <span>0%</span>
                                </div>
                                <div class="w-full bg-gray-700 rounded-full h-2">
                                    <div class="bg-blue-500 h-2 rounded-full" style="width: 0%"></div>
                                </div>
                            </div>
                            <div class="mb-4">
                                <div class="flex justify-between text-sm mb-1">
                                    <span>Domain Specialization</span>
                                    <span>0%</span>
                                </div>
                                <div class="w-full bg-gray-700 rounded-full h-2">
                                    <div class="bg-purple-500 h-2 rounded-full" style="width: 0%"></div>
                                </div>
                            </div>
                            <div class="text-sm text-gray-400">
                                <i class="fas fa-info-circle mr-2"></i>
                                Fine-tuning will begin after initial training completes
                            </div>
                        </div>
                    </div>
                </div>
                
                <div class="bg-gray-800 px-4 py-2 border-t border-gray-700 flex justify-between items-center">
                    <div class="flex items-center space-x-4">
                        <button class="text-xs px-3 py-1 bg-blue-600 rounded hover:bg-blue-700">
                            <i class="fas fa-play mr-1"></i> Train Model
                        </button>
                        <div class="flex items-center space-x-2 text-xs">
                            <span>GPU:</span>
                            <span class="px-2 py-1 bg-gray-700 rounded">NVIDIA A100</span>
                        </div>
                        <div class="flex items-center space-x-2 text-xs">
                            <span>Memory:</span>
                            <span class="px-2 py-1 bg-gray-700 rounded">32GB</span>
                        </div>
                    </div>
                    <div class="text-xs text-gray-400">
                        <i class="fas fa-circle text-green-500 mr-1"></i> Ready
                    </div>
                </div>
            </div>
        </div>
    </div>

    <script>
        // Initialize the neural network visualization
        document.addEventListener('DOMContentLoaded', function() {
            // Network configuration
            const layers = [4, 8, 8, 4];
            const colors = ['bg-blue-500', 'bg-purple-500', 'bg-pink-500', 'bg-green-500'];
            const activations = ['sigmoid', 'relu', 'tanh', 'linear'];
            
            // Draw the network
            drawNetwork(layers, colors, activations);
            
            // Initialize charts
            initTrainingChart();
            initMetricsChart();
            
            // Make the editor panel resizable
            const editorPanel = document.querySelector('.w-1/2');
            editorPanel.classList.add('resizable');
            
            // Add draggable functionality to neurons
            makeNeuronsDraggable();
            
            // Setup tab switching
            setupTabs();
            
            // Setup model selection
            setupModelSelection();
            
            // Setup language selection
            setupLanguageSelection();
            
            // Update slider values
            updateSliderValues();
            
            // Simulate training when train button is clicked
            simulateTraining();
        });
        
        function drawNetwork(layers, colors, activations) {
            const container = document.getElementById('network-container');
            container.innerHTML = '';
            
            // Calculate positions for all neurons
            const maxNeurons = Math.max(...layers);
            const layerSpacing = 200;
            const neuronSpacing = 60;
            
            // Create each layer
            layers.forEach((neuronCount, layerIndex) => {
                const layerDiv = document.createElement('div');
                layerDiv.className = 'layer';
                
                // Calculate vertical offset to center the layer
                const verticalOffset = ((maxNeurons - neuronCount) * neuronSpacing) / 2;
                
                // Create neurons in this layer
                for (let i = 0; i < neuronCount; i++) {
                    const neuron = document.createElement('div');
                    neuron.className = `neuron ${colors[layerIndex]} draggable`;
                    neuron.textContent = `${layerIndex+1}.${i+1}`;
                    neuron.dataset.layer = layerIndex;
                    neuron.dataset.neuron = i;
                    neuron.style.top = `${verticalOffset + i * neuronSpacing}px`;
                    neuron.style.left = `${layerIndex * layerSpacing}px`;
                    
                    // Add activation indicator
                    const activationNode = document.createElement('div');
                    activationNode.className = `activation-node bg-${getActivationColor(activations[layerIndex])}`;
                    activationNode.title = activations[layerIndex];
                    neuron.appendChild(activationNode);
                    
                    layerDiv.appendChild(neuron);
                }
                
                // Add layer label
                const layerLabel = document.createElement('div');
                layerLabel.className = 'text-xs mt-2 text-gray-400';
                
                if (layerIndex === 0) {
                    layerLabel.textContent = 'Input Layer';
                } else if (layerIndex === layers.length - 1) {
                    layerLabel.textContent = 'Output Layer';
                } else {
                    layerLabel.textContent = `Hidden Layer ${layerIndex}`;
                }
                
                layerDiv.appendChild(layerLabel);
                container.appendChild(layerDiv);
            });
            
            // Draw connections between neurons
            if (layers.length > 1) {
                for (let l = 0; l < layers.length - 1; l++) {
                    const currentLayerCount = layers[l];
                    const nextLayerCount = layers[l + 1];
                    
                    for (let i = 0; i < currentLayerCount; i++) {
                        for (let j = 0; j < nextLayerCount; j++) {
                            const startNeuron = document.querySelector(`[data-layer="${l}"][data-neuron="${i}"]`);
                            const endNeuron = document.querySelector(`[data-layer="${l+1}"][data-neuron="${j}"]`);
                            
                            if (startNeuron && endNeuron) {
                                const startRect = startNeuron.getBoundingClientRect();
                                const endRect = endNeuron.getBoundingClientRect();
                                const containerRect = container.getBoundingClientRect();
                                
                                const startX = startRect.left + startRect.width/2 - containerRect.left;
                                const startY = startRect.top + startRect.height/2 - containerRect.top;
                                const endX = endRect.left + endRect.width/2 - containerRect.left;
                                const endY = endRect.top + endRect.height/2 - containerRect.top;
                                
                                const length = Math.sqrt(Math.pow(endX - startX, 2) + Math.pow(endY - startY, 2));
                                const angle = Math.atan2(endY - startY, endX - startX) * 180 / Math.PI;
                                
                                const connection = document.createElement('div');
                                connection.className = 'connection';
                                connection.style.width = `${length}px`;
                                connection.style.height = '1px';
                                connection.style.left = `${startX}px`;
                                connection.style.top = `${startY}px`;
                                connection.style.transform = `rotate(${angle}deg)`;
                                
                                // Randomly make some connections more visible to show weights
                                if (Math.random() < 0.3) {
                                    connection.classList.add('active');
                                }
                                
                                container.appendChild(connection);
                            }
                        }
                    }
                }
            }
        }
        
        function getActivationColor(activation) {
            switch(activation) {
                case 'relu': return 'red-500';
                case 'sigmoid': return 'blue-500';
                case 'tanh': return 'purple-500';
                case 'linear': return 'green-500';
                default: return 'gray-500';
            }
        }
        
        function initTrainingChart() {
            const ctx = document.getElementById('training-chart').getContext('2d');
            const chart = new Chart(ctx, {
                type: 'line',
                data: {
                    labels: Array.from({length: 20}, (_, i) => i * 5),
                    datasets: [
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                            label: 'Training Loss',
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                            borderColor: 'rgb(99, 102, 241)',
                            backgroundColor: 'rgba(99, 102, 241, 0.1)',
                            tension: 0.4,
                            fill: true
                        },
                        {
                            label: 'Validation Loss',
                            data: [2.6, 2.3, 2.0, 1.7, 1.4, 1.1, 0.9, 0.7, 0.6, 0.5, 0.45, 0.4, 0.38, 0.36, 0.35, 0.34, 0.33, 0.32, 0.31, 0.3],
                            borderColor: 'rgb(236, 72, 153)',
                            backgroundColor: 'rgba(236, 72, 153, 0.1)',
                            tension: 0.4,
                            fill: true
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                options: {
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                    plugins: {
                        title: {
                            display: true,
                            text: 'Training Loss',
                            color: '#E5E7EB'
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                            labels: {
                                color: '#E5E7EB'
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                    scales: {
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                            title: {
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                                text: 'Epoch',
                                color: '#9CA3AF'
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                                color: '#9CA3AF'
                            },
                            grid: {
                                color: 'rgba(55, 65, 81, 0.5)'
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                        y: {
                            title: {
                                display: true,
                                text: 'Loss',
                                color: '#9CA3AF'
                            },
                            ticks: {
                                color: '#9CA3AF'
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                            grid: {
                                color: 'rgba(55, 65, 81, 0.5)'
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                }
            });
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        function initMetricsChart() {
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                type: 'line',
                data: {
                    labels: Array.from({length: 20}, (_, i) => i * 5),
                    datasets: [
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                            label: 'Accuracy',
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                            borderColor: 'rgb(16, 185, 129)',
                            backgroundColor: 'rgba(16, 185, 129, 0.1)',
                            tension: 0.4,
                            fill: true
                        },
                        {
                            label: 'F1 Score',
                            data: [0.15, 0.25, 0.3, 0.35, 0.45, 0.55, 0.6, 0.65, 0.7, 0.73, 0.76, 0.78, 0.8, 0.82, 0.83, 0.84, 0.85, 0.86, 0.87, 0.88],
                            borderColor: 'rgb(245, 158, 11)',
                            backgroundColor: 'rgba(245, 158, 11, 0.1)',
                            tension: 0.4,
                            fill: true
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                },
                options: {
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                    plugins: {
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                            display: true,
                            text: 'Performance Metrics',
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                    scales: {
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                                text: 'Epoch',
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                                color: '#9CA3AF'
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                            grid: {
                                color: 'rgba(55, 65, 81, 0.5)'
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                            title: {
                                display: true,
                                text: 'Score',
                                color: '#9CA3AF'
                            },
                            ticks: {
                                color: '#9CA3AF'
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                                color: 'rgba(55, 65, 81, 0.5)'
                            }
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                }
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            const neurons = document.querySelectorAll('.draggable');
            let isDragging = false;
            let currentNeuron = null;
            let offsetX, offsetY;
            
            neurons.forEach(neuron => {
                neuron.addEventListener('mousedown', function(e) {
                    isDragging = true;
                    currentNeuron = this;
                    offsetX = e.clientX - this.getBoundingClientRect().left;
                    offsetY = e.clientY - this.getBoundingClientRect().top;
                    
                    // Bring to front
                    this.style.zIndex = '10';
                    this.classList.add('ring-2', 'ring-blue-400');
                });
            });
            
            document.addEventListener('mousemove', function(e) {
                if (!isDragging || !currentNeuron) return;
                
                const container = document.getElementById('network-container');
                const containerRect = container.getBoundingClientRect();
                
                let x = e.clientX - containerRect.left - offsetX;
                let y = e.clientY - containerRect.top - offsetY;
                
                // Constrain to container
                x = Math.max(0, Math.min(x, containerRect.width - currentNeuron.offsetWidth));
                y = Math.max(0, Math.min(y, containerRect.height - currentNeuron.offsetHeight));
                
                currentNeuron.style.left = `${x}px`;
                currentNeuron.style.top = `${y}px`;
                
                // Redraw connections
                redrawConnections();
            });
            
            document.addEventListener('mouseup', function() {
                if (currentNeuron) {
                    currentNeuron.style.zIndex = '';
                    currentNeuron.classList.remove('ring-2', 'ring-blue-400');
                }
                isDragging = false;
                currentNeuron = null;
            });
        }
        
        function redrawConnections() {
            // Remove all existing connections
            const connections = document.querySelectorAll('.connection');
            connections.forEach(conn => conn.remove());
            
            // Get all neurons
            const neurons = document.querySelectorAll('.neuron');
            const container = document.getElementById('network-container');
            const containerRect = container.getBoundingClientRect();
            
            // Recreate connections between consecutive layers
            const layers = {};
            neurons.forEach(neuron => {
                const layer = parseInt(neuron.dataset.layer);
                if (!layers[layer]) layers[layer] = [];
                layers[layer].push(neuron);
            });
            
            const layerIndices = Object.keys(layers).sort();
            
            for (let i = 0; i < layerIndices.length - 1; i++) {
                const currentLayer = layers[layerIndices[i]];
                const nextLayer = layers[layerIndices[i+1]];
                
                currentLayer.forEach(startNeuron => {
                    nextLayer.forEach(endNeuron => {
                        const startRect = startNeuron.getBoundingClientRect();
                        const endRect = endNeuron.getBoundingClientRect();
                        
                        const startX = startRect.left + startRect.width/2 - containerRect.left;
                        const startY = startRect.top + startRect.height/2 - containerRect.top;
                        const endX = endRect.left + endRect.width/2 - containerRect.left;
                        const endY = endRect.top + endRect.height/2 - containerRect.top;
                        
                        const length = Math.sqrt(Math.pow(endX - startX, 2) + Math.pow(endY - startY, 2));
                        const angle = Math.atan2(endY - startY, endX - startX) * 180 / Math.PI;
                        
                        const connection = document.createElement('div');
                        connection.className = 'connection';
                        connection.style.width = `${length}px`;
                        connection.style.height = '1px';
                        connection.style.left = `${startX}px`;
                        connection.style.top = `${startY}px`;
                        connection.style.transform = `rotate(${angle}deg)`;
                        
                        // Randomly make some connections more visible to show weights
                        if (Math.random() < 0.3) {
                            connection.classList.add('active');
                        }
                        
                        container.appendChild(connection);
                    });
                });
            }
        }
        
        function setupTabs() {
            const tabButtons = document.querySelectorAll('.tab-button');
            const tabContents = document.querySelectorAll('.tab-content');
            
            tabButtons.forEach(button => {
                button.addEventListener('click', function() {
                    // Remove active class from all buttons
                    tabButtons.forEach(btn => btn.classList.remove('active'));
                    // Add active class to clicked button
                    this.classList.add('active');
                    
                    // Hide all tab contents
                    tabContents.forEach(content => content.classList.add('hidden'));
                    // Show the selected tab content
                    const tabId = this.getAttribute('data-tab') + '-tab';
                    document.getElementById(tabId).classList.remove('hidden');
                });
            });
        }
        
        function setupModelSelection() {
            const modelCards = document.querySelectorAll('.model-card');
            
            modelCards.forEach(card => {
                card.addEventListener('click', function() {
                    // Remove selected class from all cards
                    modelCards.forEach(c => c.classList.remove('selected'));
                    // Add selected class to clicked card
                    this.classList.add('selected');
                    
                    // Update network visualization based on selected model
                    const model = this.getAttribute('data-model');
                    updateNetworkForModel(model);
                });
            });
        }
        
        function updateNetworkForModel(model) {
            let layers, colors, activations;
            
            switch(model) {
                case 'llama-2':
                    layers = [4, 8, 8, 4];
                    colors = ['bg-blue-500', 'bg-purple-500', 'bg-pink-500', 'bg-green-500'];
                    activations = ['sigmoid', 'relu', 'tanh', 'linear'];
                    break;
                case 'gpt-3':
                    layers = [4, 12, 12, 4];
                    colors = ['bg-blue-500', 'bg-purple-500', 'bg-pink-500', 'bg-green-500'];
                    activations = ['relu', 'relu', 'tanh', 'linear'];
                    break;
                case 'bert':
                    layers = [4, 8, 4];
                    colors = ['bg-blue-500', 'bg-purple-500', 'bg-green-500'];
                    activations = ['tanh', 'relu', 'linear'];
                    break;
                default:
                    layers = [4, 8, 8, 4];
                    colors = ['bg-blue-500', 'bg-purple-500', 'bg-pink-500', 'bg-green-500'];
                    activations = ['sigmoid', 'relu', 'tanh', 'linear'];
            }
            
            drawNetwork(layers, colors, activations);
        }
        
        function setupLanguageSelection() {
            const languageTags = document.querySelectorAll('.language-tag');
            
            languageTags.forEach(tag => {
                tag.addEventListener('click', function() {
                    // Toggle selected class
                    this.classList.toggle('selected');
                    
                    // If Swahili is selected, show special message
                    if (this.getAttribute('data-lang') === 'sw' && this.classList.contains('selected')) {
                        showSwahiliMessage();
                    }
                });
            });
        }
        
        function showSwahiliMessage() {
            const fineTuningTab = document.getElementById('fine-tuning-tab');
            const message = document.createElement('div');
            message.className = 'bg-blue-900 text-blue-200 p-3 rounded-lg text-sm mb-4 flex items-start';
            message.innerHTML = `
                <i class="fas fa-info-circle mt-1 mr-2"></i>
                <div>
                    <strong>Kumbuka:</strong> Unachagua kufanya fine-tuning kwa lugha ya Kiswahili. 
                    Hii itahitaji data ya ziada ya Kiswahili kwa matokeo bora. 
                    <div class="mt-1">Tafadhali hakikisha una dataset ya kutosha.</div>
                </div>
            `;
            
            fineTuningTab.insertBefore(message, fineTuningTab.firstChild.nextSibling);
            
            // Remove after 10 seconds
            setTimeout(() => {
                message.remove();
            }, 10000);
        }
        
        function updateSliderValues() {
            const sliders = document.querySelectorAll('.param-slider');
            
            sliders.forEach(slider => {
                const valueDisplay = slider.nextElementSibling;
                
                // Update display initially
                valueDisplay.textContent = slider.value;
                
                // Update display when slider changes
                slider.addEventListener('input', function() {
                    valueDisplay.textContent = this.value;
                });
            });
        }
        
        function simulateTraining() {
            const startButton = document.querySelector('.bg-green-600');
            const pauseButton = document.querySelector('.bg-yellow-600');
            const stopButton = document.querySelector('.bg-red-600');
            const epochDisplay = document.querySelector('.text-2xl.font-bold.text-center');
            const trainingLossDisplay = document.querySelectorAll('.text-2xl.font-bold.text-center')[1];
            const valLossDisplay = document.querySelectorAll('.text-2xl.font-bold.text-center')[2];
            const progressBars = document.querySelectorAll('.bg-gray-700 .rounded-full > div');
            
            let isTraining = false;
            let isPaused = false;
            let currentEpoch = 0;
            let animationId;
            
            startButton.addEventListener('click', function() {
                if (!isTraining) {
                    isTraining = true;
                    currentEpoch = 0;
                    startButton.disabled = true;
                    pauseButton.disabled = false;
                    stopButton.disabled = false;
                    
                    // Change button text
                    startButton.innerHTML = '<i class="fas fa-spinner fa-spin mr-2"></i> Training...';
                    
                    // Start training animation
                    simulateEpoch();
                }
            });
            
            pauseButton.addEventListener('click', function() {
                if (isTraining && !isPaused) {
                    isPaused = true;
                    cancelAnimationFrame(animationId);
                    pauseButton.innerHTML = '<i class="fas fa-play mr-2"></i> Resume';
                    startButton.innerHTML = '<i class="fas fa-spinner mr-2"></i> Training Paused';
                } else if (isTraining && isPaused) {
                    isPaused = false;
                    pauseButton.innerHTML = '<i class="fas fa-pause mr-2"></i> Pause';
                    startButton.innerHTML = '<i class="fas fa-spinner fa-spin mr-2"></i> Training...';
                    simulateEpoch();
                }
            });
            
            stopButton.addEventListener('click', function() {
                isTraining = false;
                isPaused = false;
                cancelAnimationFrame(animationId);
                
                startButton.disabled = false;
                pauseButton.disabled = true;
                stopButton.disabled = true;
                
                startButton.innerHTML = '<i class="fas fa-play mr-2"></i> Start Training';
                pauseButton.innerHTML = '<i class="fas fa-pause mr-2"></i> Pause';
                
                // Reset progress bars
                progressBars.forEach(bar => {
                    bar.style.width = '0%';
                });
            });
            
            function simulateEpoch() {
                if (!isTraining || isPaused) return;
                
                currentEpoch++;
                
                // Update displays
                epochDisplay.textContent = currentEpoch;
                
                // Simulate decreasing loss
                const trainingLoss = Math.max(0.1, 2.5 - (currentEpoch * 0.12));
                const valLoss = Math.max(0.15, 2.6 - (currentEpoch * 0.115));
                
                trainingLossDisplay.textContent = trainingLoss.toFixed(4);
                valLossDisplay.textContent = valLoss.toFixed(4);
                
                // Update progress bars after 5 epochs
                if (currentEpoch >= 5) {
                    const progress = Math.min(100, (currentEpoch - 5) * 10);
                    progressBars.forEach(bar => {
                        bar.style.width = `${progress}%`;
                    });
                }
                
                // Continue until 20 epochs
                if (currentEpoch < 20) {
                    animationId = requestAnimationFrame(simulateEpoch);
                } else {
                    isTraining = false;
                    startButton.disabled = false;
                    pauseButton.disabled = true;
                    stopButton.disabled = true;
                    
                    startButton.innerHTML = '<i class="fas fa-play mr-2"></i> Start Training';
                    
                    // Show completion message
                    const message = document.createElement('div');
                    message.className = 'bg-green-900 text-green-200 p-3 rounded-lg text-sm mb-4 flex items-center absolute bottom-4 right-4';
                    message.innerHTML = `
                        <i class="fas fa-check-circle mr-2"></i>
                        <div>Training completed successfully!</div>
                    `;
                    
                    document.querySelector('.flex-1.overflow-auto').appendChild(message);
                    
                    // Remove after 5 seconds
                    setTimeout(() => {
                        message.remove();
                    }, 5000);
                }
            }
        }
    </script>
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