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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>Feature Engineering Assistant - BRAIN</title>
<link rel="stylesheet" href="{{ url_for('static', filename='styles.css') }}">
<style>
.feature-engineering-container {
max-width: 1200px;
margin: 0 auto;
padding: 20px;
}
.header-section {
text-align: center;
margin-bottom: 30px;
}
.header-section h1 {
color: #2c3e50;
margin-bottom: 10px;
}
.header-section p {
color: #7f8c8d;
font-size: 16px;
}
.back-button {
position: absolute;
top: 20px;
left: 20px;
background: #3498db;
color: white;
padding: 10px 20px;
border: none;
border-radius: 5px;
text-decoration: none;
display: inline-block;
transition: background-color 0.3s;
}
.back-button:hover {
background: #2980b9;
}
.config-section {
background: #f8f9fa;
padding: 20px;
border-radius: 8px;
margin-bottom: 20px;
}
.config-section h3 {
margin-top: 0;
color: #2c3e50;
}
.form-group {
margin-bottom: 15px;
}
.form-group label {
display: block;
margin-bottom: 5px;
font-weight: bold;
color: #2c3e50;
}
.form-input {
width: 100%;
padding: 10px;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 14px;
}
.form-input:focus {
outline: none;
border-color: #3498db;
box-shadow: 0 0 5px rgba(52, 152, 219, 0.3);
}
.btn {
background: #3498db;
color: white;
padding: 10px 20px;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 14px;
transition: background-color 0.3s;
}
.btn:hover {
background: #2980b9;
}
.btn-success {
background: #27ae60;
}
.btn-success:hover {
background: #229954;
}
.btn-secondary {
background: #95a5a6;
}
.btn-secondary:hover {
background: #7f8c8d;
}
.options-section {
background: white;
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
margin-bottom: 20px;
}
.options-header {
background: #3498db;
color: white;
padding: 15px 20px;
border-radius: 8px 8px 0 0;
display: flex;
justify-content: space-between;
align-items: center;
}
.options-container {
padding: 20px;
display: grid;
grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
gap: 20px;
}
.option-card {
background: #f8f9fa;
border: 2px solid #e9ecef;
border-radius: 8px;
padding: 20px;
transition: all 0.3s ease;
cursor: pointer;
position: relative;
}
.option-card:hover {
border-color: #3498db;
box-shadow: 0 4px 12px rgba(52, 152, 219, 0.15);
}
.option-card.selected {
border-color: #27ae60;
background: #f1f8e9;
}
.option-card.editing {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 1000;
width: 80%;
max-width: 800px;
max-height: 80vh;
overflow-y: auto;
border-color: #f39c12;
background: #fef9e7;
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.modal-overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.5);
z-index: 999;
display: none;
}
.modal-overlay.active {
display: block;
}
.option-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 15px;
}
.option-number {
background: #3498db;
color: white;
padding: 5px 10px;
border-radius: 20px;
font-size: 12px;
font-weight: bold;
}
.option-actions {
display: flex;
gap: 10px;
}
.option-actions button {
padding: 5px 10px;
font-size: 12px;
border: none;
border-radius: 4px;
cursor: pointer;
}
.edit-btn {
background: #f39c12;
color: white;
}
.save-btn {
background: #27ae60;
color: white;
}
.cancel-btn {
background: #95a5a6;
color: white;
}
.select-btn {
background: #3498db;
color: white;
}
.send-continue-btn {
background: #27ae60;
color: white;
margin-left: 10px;
}
.option-content {
line-height: 1.6;
}
.option-field {
margin-bottom: 10px;
}
.option-field label {
font-weight: bold;
color: #2c3e50;
display: block;
margin-bottom: 5px;
}
.option-field input,
.option-field textarea {
width: 100%;
padding: 8px;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 14px;
}
.option-field textarea {
resize: vertical;
min-height: 80px;
overflow: hidden;
}
.option-card.editing .option-field textarea {
min-height: 120px;
overflow-y: auto;
}
.auto-resize-textarea {
overflow: hidden;
resize: none;
}
.option-field.readonly input,
.option-field.readonly textarea {
background: #f8f9fa;
border-color: #e9ecef;
}
.template-actions {
display: flex;
gap: 10px;
margin-bottom: 20px;
}
.pipeline-status {
background: #fff3cd;
border: 1px solid #ffeaa7;
border-radius: 4px;
padding: 15px;
margin-bottom: 20px;
}
.pipeline-status h4 {
margin-top: 0;
color: #856404;
}
.pipeline-step {
background: #f8f9fa;
border-left: 4px solid #3498db;
padding: 10px 15px;
margin-bottom: 10px;
border-radius: 0 4px 4px 0;
}
.pipeline-step strong {
color: #2c3e50;
}
.notification {
position: fixed;
top: 20px;
right: 20px;
padding: 15px 20px;
border-radius: 4px;
color: white;
font-weight: bold;
z-index: 1000;
animation: slideIn 0.3s ease-out;
}
.notification.success {
background: #27ae60;
}
.notification.error {
background: #e74c3c;
}
@keyframes slideIn {
from {
transform: translateX(100%);
opacity: 0;
}
to {
transform: translateX(0);
opacity: 1;
}
}
.loading-overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.5);
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
z-index: 1000;
}
.loading-spinner {
width: 50px;
height: 50px;
border: 5px solid #f3f3f3;
border-top: 5px solid #3498db;
border-radius: 50%;
animation: spin 1s linear infinite;
}
.loading-message {
color: white;
margin-top: 20px;
font-size: 16px;
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
.export-section {
background: #f8f9fa;
padding: 20px;
border-radius: 8px;
margin-top: 20px;
}
.export-section h3 {
margin-top: 0;
color: #2c3e50;
}
.category-list {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 10px;
margin-top: 15px;
}
.category-item {
background: #ecf0f1;
padding: 8px 12px;
border-radius: 4px;
font-size: 14px;
border-left: 4px solid #3498db;
}
.quick-actions {
display: flex;
gap: 10px;
margin-bottom: 20px;
}
.quick-actions button {
padding: 8px 16px;
font-size: 14px;
}
.empty-conversation {
text-align: center;
color: #7f8c8d;
padding: 40px;
font-style: italic;
}
/* Operators Reference Modal Styles */
.operator-category {
background: #f8f9fa;
border-radius: 8px;
margin-bottom: 20px;
border: 1px solid #e9ecef;
overflow: hidden;
}
.operator-category.hidden {
display: none;
}
.operator-category-header {
background: #3498db;
color: white;
padding: 15px 20px;
cursor: pointer;
display: flex;
justify-content: space-between;
align-items: center;
transition: background-color 0.3s;
}
.operator-category-header:hover {
background: #2980b9;
}
.operator-category-header h4 {
margin: 0;
font-size: 16px;
}
.operator-category-number {
background: rgba(255, 255, 255, 0.2);
padding: 4px 8px;
border-radius: 12px;
font-size: 12px;
font-weight: bold;
margin-right: 10px;
}
.operator-category-toggle {
font-size: 18px;
transition: transform 0.3s;
}
.operator-category-toggle.expanded {
transform: rotate(180deg);
}
.operator-category-content {
padding: 0;
max-height: 0;
overflow: hidden;
transition: max-height 0.3s ease-out;
}
.operator-category-content.expanded {
max-height: 500px;
padding: 20px;
}
.operator-description {
color: #2c3e50;
margin-bottom: 15px;
font-style: italic;
line-height: 1.5;
}
.operator-definition {
color: #6c757d;
margin-bottom: 10px;
font-size: 13px;
line-height: 1.4;
font-style: italic;
}
.operator-list {
background: white;
border-radius: 4px;
padding: 15px;
border: 1px solid #e9ecef;
}
.operator-list h5 {
margin: 0 0 10px 0;
color: #2c3e50;
font-size: 14px;
font-weight: bold;
}
.operators-grid {
display: flex;
flex-wrap: wrap;
gap: 8px;
}
.operator-tag {
background: #ecf0f1;
color: #2c3e50;
padding: 4px 8px;
border-radius: 4px;
font-size: 12px;
font-family: monospace;
border: 1px solid #bdc3c7;
}
.operator-tag.highlight {
background: #fff3cd;
border-color: #ffeaa7;
color: #856404;
}
.no-results {
text-align: center;
color: #7f8c8d;
padding: 40px;
font-style: italic;
}
/* Clickable category styles */
.clickable-category {
color: #3498db;
cursor: pointer;
text-decoration: underline;
font-weight: bold;
}
.clickable-category:hover {
color: #2980b9;
background-color: #f8f9fa;
padding: 2px 4px;
border-radius: 3px;
}
/* Category popup tooltip */
.category-popup {
position: absolute;
background: white;
border: 2px solid #3498db;
border-radius: 8px;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
z-index: 1000;
max-width: 500px;
min-width: 300px;
padding: 0;
display: none;
}
.category-popup-header {
background: #3498db;
color: white;
padding: 10px 15px;
border-radius: 6px 6px 0 0;
font-weight: bold;
display: flex;
justify-content: space-between;
align-items: center;
}
.category-popup-close {
cursor: pointer;
font-size: 18px;
font-weight: bold;
}
.category-popup-content {
padding: 15px;
}
.category-popup-description {
color: #2c3e50;
margin-bottom: 15px;
font-style: italic;
line-height: 1.4;
}
.category-popup-operators {
background: #f8f9fa;
border-radius: 4px;
padding: 10px;
border: 1px solid #e9ecef;
}
.category-popup-operators h5 {
margin: 0 0 8px 0;
color: #2c3e50;
font-size: 13px;
}
.popup-operators-grid {
display: flex;
flex-wrap: wrap;
gap: 4px;
}
.popup-operator-tag {
background: #ecf0f1;
color: #2c3e50;
padding: 2px 6px;
border-radius: 3px;
font-size: 11px;
font-family: monospace;
border: 1px solid #bdc3c7;
}
.readonly-display {
padding: 10px;
border: 1px solid #ddd;
border-radius: 4px;
background: #f8f9fa;
font-size: 14px;
min-height: 35px;
display: flex;
align-items: center;
}
</style>
</head>
<body>
<div class="feature-engineering-container">
<a href="{{ url_for('index') }}" class="back-button">← Back to Main</a>
<div class="header-section">
<h1>DataField Guide</h1>
<p>Get AI-powered recommendations for multi-step DataField Exploration</p>
</div>
<!-- API Configuration Section -->
<div class="config-section" id="apiConfigSection">
<h3>API Configuration</h3>
<div class="form-group">
<label for="modelProvider">AI Model Provider:</label>
<select id="modelProvider" class="form-input">
<option value="deepseek">Deepseek</option>
<option value="kimi">Kimi</option>
</select>
</div>
<div class="form-group">
<label for="apiKey">API Key:</label>
<input type="password" id="apiKey" class="form-input" placeholder="Enter your API key">
</div>
<div class="form-group">
<label for="modelName">Model Name:</label>
<input type="text" id="modelName" class="form-input" placeholder="e.g., deepseek-chat, kimi-k2-0711-preview">
<small style="color: #7f8c8d; font-size: 12px;">Enter the specific model name for your chosen provider</small>
</div>
<button id="saveApiKey" class="btn">Test & Save Configuration</button>
</div>
<!-- Show API Config Button (hidden by default) -->
<div class="config-section" id="showApiConfigSection" style="display: none;">
<h3>API Configuration</h3>
<p style="color: #27ae60; margin-bottom: 15px;">✅ API configuration saved successfully</p>
<button id="showApiConfig" class="btn btn-secondary">Show API Configuration</button>
</div>
<!-- Pipeline Status Section -->
<div class="pipeline-status" id="pipelineStatus" style="display: none;">
<h4>Current Pipeline Status</h4>
<div id="pipelineSteps">
<!-- Pipeline steps will be displayed here -->
</div>
</div>
<!-- Initial Setup Section -->
<div class="config-section" id="initialSetup">
<h3>Start New Feature Engineering Pipeline</h3>
<div class="template-actions">
<button id="loadQuestionTemplate" class="btn btn-secondary">Load Question Template</button>
<button id="editSystemPrompt" class="btn btn-secondary">Edit System Prompt</button>
<button id="startPipeline" class="btn btn-success">Get AI Recommendations</button>
</div>
<div class="form-group">
<label for="questionTemplate">Question Template:</label>
<textarea id="questionTemplate" class="form-input" rows="6" placeholder="Click 'Load Question Template' to load the template"></textarea>
</div>
</div>
<!-- Options Cards Section -->
<div class="options-section" id="optionsSection" style="display: none;">
<div class="options-header">
<h3>AI Recommendations</h3>
<div class="quick-actions">
<button id="clearOptions" class="btn btn-secondary">Clear & Start Over</button>
<button id="exportPipeline" class="btn">Export Pipeline</button>
</div>
</div>
<div class="options-container" id="optionsContainer">
<!-- Option cards will be dynamically inserted here -->
</div>
</div>
<!-- Modal Overlay for Editing -->
<div class="modal-overlay" id="modalOverlay"></div>
<!-- Category Popup -->
<div class="category-popup" id="categoryPopup">
<div class="category-popup-header">
<span id="categoryPopupTitle"></span>
<span class="category-popup-close" onclick="hideCategoryPopup()">&times;</span>
</div>
<div class="category-popup-content">
<div class="category-popup-description" id="categoryPopupDescription"></div>
<div class="category-popup-operators">
<h5 id="categoryPopupOperatorsTitle"></h5>
<div class="popup-operators-grid" id="categoryPopupOperators"></div>
</div>
</div>
</div>
<!-- System Prompt Edit Modal -->
<div class="modal-overlay" id="systemPromptModal" style="display: none;">
<div class="modal-content" style="position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 80%; max-width: 900px; max-height: 80vh; background: white; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.3); z-index: 1001;">
<div class="modal-header" style="background: #3498db; color: white; padding: 15px 20px; border-radius: 8px 8px 0 0; display: flex; justify-content: space-between; align-items: center;">
<h3>Edit System Prompt</h3>
<span class="close" onclick="closeSystemPromptModal()" style="cursor: pointer; font-size: 24px;">&times;</span>
</div>
<div class="modal-body" style="padding: 20px; max-height: 60vh; overflow-y: auto;">
<div class="form-group">
<label for="systemPromptTextarea">System Prompt:</label>
<textarea id="systemPromptTextarea" class="form-input" rows="20" placeholder="Enter your custom system prompt here..."></textarea>
</div>
<div class="prompt-actions" style="margin-top: 15px; display: flex; gap: 10px;">
<button id="loadDefaultPrompt" class="btn btn-outline">Load Default Prompt</button>
</div>
</div>
<div class="modal-footer" style="padding: 15px 20px; border-top: 1px solid #eee; display: flex; justify-content: flex-end; gap: 10px;">
<button onclick="closeSystemPromptModal()" class="btn btn-outline">Cancel</button>
<button onclick="saveSystemPrompt()" class="btn btn-primary">Save & Apply</button>
</div>
</div>
</div>
<!-- Operator Suggestions Modal -->
<div class="modal-overlay" id="operatorSuggestionsModal" style="display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1001;">
<div class="modal-content" style="position: absolute; top: 30%; left: 50%; transform: translate(-50%, -50%); width: 98%; max-width: 1600px; max-height: 95vh; background: white; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.3); display: flex; flex-direction: column;">
<div class="modal-header" style="background: #9b59b6; color: white; padding: 15px 20px; border-radius: 8px 8px 0 0; display: flex; justify-content: space-between; align-items: center;">
<h3>🎯 Operator Suggestions for Current Step</h3>
<span class="close" onclick="closeOperatorSuggestionsModal()" style="cursor: pointer; font-size: 24px;">&times;</span>
</div>
<div class="modal-body" style="padding: 20px; flex: 1; overflow-y: auto; min-height: 0;">
<!-- Target Section -->
<div class="target-section" style="background: #f8f9fa; padding: 8px; border-radius: 8px; margin-bottom: 8px;">
<div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 5px;">
<h4 style="margin: 0; color: #2c3e50; font-size: 14px;">Research Target:</h4>
<button id="modalEditTarget" class="btn btn-secondary" style="padding: 3px 8px; font-size: 11px;">Edit Target</button>
</div>
<!-- Target Display (read-only) -->
<div class="target-display" id="modalTargetDisplay" style="background: white; border: 1px solid #e9ecef; border-radius: 4px; padding: 6px; min-height: 30px; max-height: 40px; overflow-y: auto;">
<div class="target-text" id="modalTargetText" style="line-height: 1.3; word-wrap: break-word; font-size: 12px;">No target set</div>
</div>
<!-- Target Input (editable) -->
<div id="modalTargetInputGroup" style="display: none;">
<textarea id="modalTargetInput" class="form-input" rows="2" placeholder="Describe your research target..." style="min-height: 40px; max-height: 60px; resize: vertical; font-size: 12px;"></textarea>
<div style="margin-top: 5px;">
<button id="modalSaveTarget" class="btn btn-success" style="padding: 3px 8px; font-size: 11px;">Save Target</button>
<button id="modalCancelTarget" class="btn btn-secondary" style="padding: 3px 8px; font-size: 11px; margin-left: 5px;">Cancel</button>
</div>
</div>
</div>
<!-- BRAIN Connection Notice -->
<div id="modalBrainNotice" style="margin-bottom: 8px; padding: 6px; background: #fff3cd; border: 1px solid #ffeaa7; border-radius: 4px; display: none;">
<div style="color: #856404; font-size: 12px;">
<strong>💡 Tip:</strong> Connect to WorldQuant BRAIN to get access to the full operator library (400+ operators).
<button onclick="openBrainLoginModal()" style="background: #3498db; color: white; border: none; padding: 3px 8px; border-radius: 3px; margin-left: 8px; cursor: pointer; font-size: 11px;">Connect to BRAIN</button>
</div>
</div>
<!-- Expression Section -->
<div class="expression-section" style="background: #f8f9fa; padding: 8px; border-radius: 8px; margin-bottom: 8px;">
<h4 style="margin: 0 0 5px 0; color: #2c3e50; font-size: 14px;">Current Expression for Seeking Advice:</h4>
<textarea id="modalCurrentExpression" class="form-input" rows="2" placeholder="Enter your current expression for this step... (e.g., ts_mean(close, 20) or rank(volume))" style="min-height: 30px; max-height: 40px; resize: vertical; font-size: 12px;"></textarea>
<div style="margin-top: 5px;">
<button id="modalStartEvaluation" class="btn btn-warning" style="padding: 5px 10px; font-size: 12px;">Get Operator Suggestions</button>
<button id="modalClearExpression" class="btn btn-secondary" style="padding: 5px 10px; font-size: 12px;">Clear Expression</button>
</div>
</div>
<!-- Evaluation Results Section -->
<div class="evaluation-section" id="modalEvaluationSection" style="display: none;">
<h4 style="margin: 0 0 10px 0; color: #2c3e50;">Operator Suggestions:</h4>
<!-- Filter Controls -->
<div class="filter-controls" style="display: flex; gap: 10px; margin-bottom: 8px; align-items: center; flex-wrap: wrap; padding: 6px; background: white; border-radius: 4px; border: 1px solid #e9ecef;">
<label style="display: flex; align-items: center; gap: 5px; font-weight: normal; min-width: 120px; font-size: 12px;">
<strong>Min Score:</strong>
<input type="range" id="modalMinScoreFilter" min="0" max="10" value="7" style="width: 80px;">
<span id="modalMinScoreValue" style="font-weight: bold; color: #3498db;">7</span>
</label>
<label style="display: flex; align-items: center; gap: 5px; font-weight: normal; min-width: 100px; font-size: 12px;">
<input type="checkbox" id="modalShowHighScores" checked> <strong>High (8-10)</strong>
</label>
<label style="display: flex; align-items: center; gap: 5px; font-weight: normal; min-width: 100px; font-size: 12px;">
<input type="checkbox" id="modalShowMediumScores" checked> <strong>Medium (4-7)</strong>
</label>
<label style="display: flex; align-items: center; gap: 5px; font-weight: normal; min-width: 100px; font-size: 12px;">
<input type="checkbox" id="modalShowLowScores"> <strong>Low (0-3)</strong>
</label>
</div>
<!-- Summary Stats -->
<div class="summary-stats" id="modalSummaryStats" style="display: none; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; margin-bottom: 8px;">
<div class="stat-card stat-high" style="background: white; padding: 6px; border-radius: 4px; text-align: center;">
<div class="stat-number" id="modalHighScoreCount" style="font-size: 14px; font-weight: bold; color: #27ae60;">0</div>
<div class="stat-label" style="font-size: 11px; color: #7f8c8d;">High (8-10)</div>
</div>
<div class="stat-card stat-medium" style="background: white; padding: 6px; border-radius: 4px; text-align: center;">
<div class="stat-number" id="modalMediumScoreCount" style="font-size: 14px; font-weight: bold; color: #f39c12;">0</div>
<div class="stat-label" style="font-size: 11px; color: #7f8c8d;">Medium (4-7)</div>
</div>
<div class="stat-card stat-low" style="background: white; padding: 6px; border-radius: 4px; text-align: center;">
<div class="stat-number" id="modalLowScoreCount" style="font-size: 14px; font-weight: bold; color: #e74c3c;">0</div>
<div class="stat-label" style="font-size: 11px; color: #7f8c8d;">Low (0-3)</div>
</div>
</div>
<!-- Results Table -->
<div class="evaluation-table-container" style="overflow-x: auto; max-height: 600px; overflow-y: auto;">
<table class="evaluation-table" id="modalEvaluationTable" style="width: 100%; border-collapse: collapse; font-size: 13px; border: 1px solid #dee2e6;">
<thead>
<tr>
<th style="background: #f8f9fa; padding: 8px; text-align: left; border: 1px solid #dee2e6; border-bottom: 2px solid #dee2e6; position: sticky; top: 0; z-index: 10; width: 370px;">Operator</th>
<th style="background: #f8f9fa; padding: 8px; text-align: left; border: 1px solid #dee2e6; border-bottom: 2px solid #dee2e6; position: sticky; top: 0; z-index: 10; min-width: 400px;">Reason</th>
<th style="background: #f8f9fa; padding: 8px; text-align: center; border: 1px solid #dee2e6; border-bottom: 2px solid #dee2e6; position: sticky; top: 0; z-index: 10; width: 60px;">Score</th>
</tr>
</thead>
<tbody id="modalEvaluationTableBody">
<tr>
<td colspan="5" style="text-align: center; color: #7f8c8d; font-style: italic; padding: 20px;">
No suggestions yet. Enter your expression and click "Get Operator Suggestions".
</td>
</tr>
</tbody>
</table>
</div>
</div>
<!-- Progress Section -->
<div class="progress-section" id="modalProgressSection" style="display: none; background: white; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); margin-top: 20px;">
<div class="progress-header" style="background: #27ae60; color: white; padding: 10px 15px; border-radius: 8px 8px 0 0;">
<h4 style="margin: 0; font-size: 14px;">🔄 Evaluating Operators...</h4>
</div>
<div class="progress-content" style="padding: 15px;">
<div class="progress-bar" style="width: 100%; height: 15px; background-color: #e9ecef; border-radius: 8px; overflow: hidden; margin-bottom: 8px;">
<div class="progress-fill" id="modalProgressFill" style="height: 100%; background: linear-gradient(90deg, #27ae60, #2ecc71); transition: width 0.3s ease; display: flex; align-items: center; justify-content: center; color: white; font-size: 10px; font-weight: bold; width: 0%;">0%</div>
</div>
<div class="progress-stats" style="display: flex; justify-content: space-between; font-size: 12px; color: #6c757d;">
<span id="modalProgressText">Evaluating operators...</span>
<span id="modalProgressCount">0 / 0</span>
</div>
</div>
</div>
</div>
<div class="modal-footer" style="padding: 15px 20px; border-top: 1px solid #eee; display: flex; justify-content: space-between; align-items: center; flex-shrink: 0;">
<div>
<button id="modalExportResults" class="btn btn-secondary" style="display: none;">Export Results</button>
</div>
<div>
<button onclick="closeOperatorSuggestionsModal()" class="btn btn-outline">Close</button>
</div>
</div>
</div>
</div>
<!-- Export Section -->
<div class="export-section">
<h3>Available Feature Engineering Categories</h3>
<p>The AI assistant can recommend from these 15 categories:</p>
<div class="category-list">
<div class="category-item">Basic Arithmetic & Mathematical Operations</div>
<div class="category-item">Logical & Conditional Operations</div>
<div class="category-item">Time Series: Change Detection & Value Comparison</div>
<div class="category-item">Time Series: Statistical Feature Engineering</div>
<div class="category-item">Time Series: Ranking, Scaling, and Normalization</div>
<div class="category-item">Time Series: Decay, Smoothing, and Turnover Control</div>
<div class="category-item">Time Series: Extremes & Position Identification</div>
<div class="category-item">Cross-Sectional: Ranking, Scaling, and Normalization</div>
<div class="category-item">Cross-Sectional: Regression & Neutralization</div>
<div class="category-item">Cross-Sectional: Distributional Transformation & Truncation</div>
<div class="category-item">Transformational & Filtering Operations</div>
<div class="category-item">Group Aggregation & Statistical Summary</div>
<div class="category-item">Group Ranking, Scaling, and Normalization</div>
<div class="category-item">Group Regression & Neutralization</div>
<div class="category-item">Group Imputation & Backfilling</div>
</div>
</div>
</div>
<!-- BRAIN Login Modal -->
<div id="brainLoginModal" class="modal" style="display: none; position: fixed; z-index: 2000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.5);">
<div class="modal-content" style="background-color: white; margin: 5% auto; padding: 0; border-radius: 8px; width: 90%; max-width: 500px; box-shadow: 0 4px 20px rgba(0,0,0,0.3);">
<div class="modal-header" style="background: #3498db; color: white; padding: 15px 20px; border-radius: 8px 8px 0 0; display: flex; justify-content: space-between; align-items: center;">
<h3>Connect to WorldQuant BRAIN</h3>
<span class="close" onclick="closeBrainLoginModal()" style="cursor: pointer; font-size: 24px;">&times;</span>
</div>
<div class="modal-body" style="padding: 20px;">
<form id="brainLoginForm" onsubmit="event.preventDefault(); authenticateBrain();">
<div class="form-group">
<label for="brainUsername">Username:</label>
<input type="email" id="brainUsername" class="form-input" placeholder="your.email@domain.com" required>
</div>
<div class="form-group">
<label for="brainPassword">Password:</label>
<input type="password" id="brainPassword" class="form-input" placeholder="Your password" required>
</div>
<div id="brainLoginStatus" class="login-status"></div>
<div id="loginSpinner" class="login-spinner" style="display: none;">
<div class="spinner" style="width: 20px; height: 20px; border: 2px solid #f3f3f3; border-top: 2px solid #3498db; border-radius: 50%; animation: spin 1s linear infinite; display: inline-block;"></div>
</div>
</form>
</div>
<div class="modal-footer" style="padding: 15px 20px; border-top: 1px solid #eee; display: flex; justify-content: flex-end; gap: 10px;">
<button onclick="closeBrainLoginModal()" class="btn btn-outline" id="cancelBtn">Cancel</button>
<button onclick="authenticateBrain()" class="btn btn-primary" id="loginBtn">Connect</button>
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