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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>Excel Mastery - The Future of Spreadsheets</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">
    <style>
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0px); }
        }
        .floating {
            animation: float 6s ease-in-out infinite;
        }
        .slide {
            display: none;
            opacity: 0;
            transition: opacity 0.5s ease;
        }
        .slide.active {
            display: block;
            opacity: 1;
        }
        .cell-highlight {
            background-color: rgba(100, 255, 100, 0.3);
            transition: all 0.3s ease;
        }
        .robot-eye {
            box-shadow: 0 0 15px 5px rgba(0, 150, 255, 0.7);
        }
        .progress-bar {
            transition: width 0.5s ease;
        }
        .excel-icon {
            text-shadow: 0 0 10px rgba(0, 150, 255, 0.7);
        }
    </style>
</head>
<body class="bg-gray-900 text-gray-100 font-sans overflow-x-hidden">
    <!-- Robot Assistant -->
    <div class="fixed bottom-8 right-8 z-50 floating">
        <div class="relative">
            <div class="w-24 h-32 bg-blue-600 rounded-full relative">
                <!-- Robot Head -->
                <div class="absolute -top-6 left-1/2 transform -translate-x-1/2 w-16 h-16 bg-blue-500 rounded-full flex justify-center items-center">
                    <!-- Eyes -->
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                </div>
                <!-- Body -->
                <div class="pt-8 px-2">
                    <div class="text-center text-xs font-bold">EXCEL-BOT 3000</div>
                    <div class="text-center text-xxs mt-1">Your spreadsheet assistant</div>
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                <i class="fas fa-file-excel text-6xl text-green-500 excel-icon mr-4"></i>
                <h1 class="text-5xl font-bold bg-clip-text text-transparent bg-gradient-to-r from-blue-400 to-green-400">
                    Excel Mastery
                </h1>
            </div>
            <p class="text-xl text-blue-300">The complete guide to spreadsheet domination</p>
        </header>

        <!-- Navigation -->
        <div class="flex justify-between items-center mb-8 bg-gray-800 rounded-lg p-2">
            <button id="prev-btn" class="px-4 py-2 bg-blue-600 rounded-lg hover:bg-blue-500 transition">
                <i class="fas fa-arrow-left mr-2"></i> Previous
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        <!-- Slides -->
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            <!-- Slide 1 - Introduction -->
            <div class="slide active" data-slide="1">
                <div class="flex flex-col md:flex-row items-center">
                    <div class="md:w-1/2 mb-6 md:mb-0 md:pr-8">
                        <h2 class="text-3xl font-bold mb-4 text-blue-400">Welcome to Excel Mastery</h2>
                        <p class="mb-4 text-lg">Microsoft Excel is the most powerful spreadsheet software used by over 750 million people worldwide.</p>
                        <p class="mb-6">This presentation will transform you from beginner to spreadsheet expert with the help of our AI assistant.</p>
                        <div class="bg-gray-700 p-4 rounded-lg border-l-4 border-blue-500">
                            <p class="font-bold text-blue-300">Did you know?</p>
                            <p>Excel was first released in 1985 and has since become the industry standard for data analysis.</p>
                        </div>
                    </div>
                    <div class="md:w-1/2">
                        <div class="bg-gray-900 p-6 rounded-lg border border-gray-700">
                            <div class="grid grid-cols-5 gap-1 mb-2">
                                <div class="bg-blue-900 p-2 text-center font-bold text-xs">A</div>
                                <div class="bg-blue-900 p-2 text-center font-bold text-xs">B</div>
                                <div class="bg-blue-900 p-2 text-center font-bold text-xs">C</div>
                                <div class="bg-blue-900 p-2 text-center font-bold text-xs">D</div>
                                <div class="bg-blue-900 p-2 text-center font-bold text-xs">E</div>
                            </div>
                            <div class="grid grid-cols-5 gap-1">
                                <div class="bg-gray-700 p-2 text-center border border-gray-600">1</div>
                                <div class="bg-gray-700 p-2 text-center border border-gray-600">Data</div>
                                <div class="bg-gray-700 p-2 text-center border border-gray-600">Analysis</div>
                                <div class="bg-gray-700 p-2 text-center border border-gray-600">Made</div>
                                <div class="bg-gray-700 p-2 text-center border border-gray-600">Easy</div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Slide 2 - When to Use Excel -->
            <div class="slide" data-slide="2">
                <h2 class="text-3xl font-bold mb-6 text-blue-400">When to Use Excel</h2>
                <div class="grid md:grid-cols-2 gap-6">
                    <div class="bg-gray-700 p-6 rounded-lg border-l-4 border-green-500">
                        <h3 class="text-xl font-bold mb-3 text-green-300"><i class="fas fa-check-circle mr-2"></i> Perfect For</h3>
                        <ul class="space-y-2">
                            <li class="flex items-start"><i class="fas fa-caret-right mt-1 mr-2 text-blue-300"></i> Financial calculations and budgeting</li>
                            <li class="flex items-start"><i class="fas fa-caret-right mt-1 mr-2 text-blue-300"></i> Data organization and sorting</li>
                            <li class="flex items-start"><i class="fas fa-caret-right mt-1 mr-2 text-blue-300"></i> Creating charts and visualizations</li>
                            <li class="flex items-start"><i class="fas fa-caret-right mt-1 mr-2 text-blue-300"></i> Simple databases and lists</li>
                            <li class="flex items-start"><i class="fas fa-caret-right mt-1 mr-2 text-blue-300"></i> Quick calculations and formulas</li>
                        </ul>
                    </div>
                    <div class="bg-gray-700 p-6 rounded-lg border-l-4 border-red-500">
                        <h3 class="text-xl font-bold mb-3 text-red-300"><i class="fas fa-times-circle mr-2"></i> Not Ideal For</h3>
                        <ul class="space-y-2">
                            <li class="flex items-start"><i class="fas fa-caret-right mt-1 mr-2 text-blue-300"></i> Large-scale database management</li>
                            <li class="flex items-start"><i class="fas fa-caret-right mt-1 mr-2 text-blue-300"></i> Complex relational data</li>
                            <li class="flex items-start"><i class="fas fa-caret-right mt-1 mr-2 text-blue-300"></i> Collaborative real-time editing</li>
                            <li class="flex items-start"><i class="fas fa-caret-right mt-1 mr-2 text-blue-300"></i> High-performance computing</li>
                            <li class="flex items-start"><i class="fas fa-caret-right mt-1 mr-2 text-blue-300"></i> Advanced statistical analysis</li>
                        </ul>
                    </div>
                </div>
            </div>

            <!-- Slide 3 - Excel Interface -->
            <div class="slide" data-slide="3">
                <h2 class="text-3xl font-bold mb-6 text-blue-400">Excel Interface Breakdown</h2>
                <div class="bg-gray-900 p-6 rounded-lg border border-gray-700 mb-6">
                    <div class="flex flex-wrap gap-4 justify-center">
                        <div class="interface-item bg-blue-900 px-4 py-2 rounded-lg cursor-pointer hover:bg-blue-800 transition" data-highlight="ribbon">
                            <i class="fas fa-bars mr-2"></i> Ribbon
                        </div>
                        <div class="interface-item bg-blue-900 px-4 py-2 rounded-lg cursor-pointer hover:bg-blue-800 transition" data-highlight="formula-bar">
                            <i class="fas fa-square-root-alt mr-2"></i> Formula Bar
                        </div>
                        <div class="interface-item bg-blue-900 px-4 py-2 rounded-lg cursor-pointer hover:bg-blue-800 transition" data-highlight="worksheet">
                            <i class="fas fa-table mr-2"></i> Worksheet
                        </div>
                        <div class="interface-item bg-blue-900 px-4 py-2 rounded-lg cursor-pointer hover:bg-blue-800 transition" data-highlight="status-bar">
                            <i class="fas fa-info-circle mr-2"></i> Status Bar
                        </div>
                        <div class="interface-item bg-blue-900 px-4 py-2 rounded-lg cursor-pointer hover:bg-blue-800 transition" data-highlight="quick-access">
                            <i class="fas fa-bolt mr-2"></i> Quick Access
                        </div>
                    </div>
                </div>
                <div class="bg-gray-800 p-6 rounded-lg border border-gray-700 relative min-h-64">
                    <div id="excel-interface-demo" class="relative">
                        <!-- Ribbon -->
                        <div id="ribbon" class="bg-blue-800 text-white p-2 mb-2 rounded-t-lg flex justify-between items-center">
                            <div class="flex space-x-4">
                                <span>Home</span>
                                <span>Insert</span>
                                <span>Page Layout</span>
                                <span>Formulas</span>
                                <span>Data</span>
                            </div>
                        </div>
                        
                        <!-- Formula Bar -->
                        <div id="formula-bar" class="bg-gray-700 p-1 mb-2 flex items-center">
                            <span class="bg-gray-600 px-2 py-1 mr-2 rounded">A1</span>
                            <div class="flex-1 bg-white text-black p-1 rounded">=SUM(B2:B5)</div>
                        </div>
                        
                        <!-- Worksheet -->
                        <div id="worksheet" class="grid grid-cols-8 gap-px bg-gray-600">
                            <!-- Column headers -->
                            <div class="bg-blue-900 p-1 text-center font-bold text-xs">A</div>
                            <div class="bg-blue-900 p-1 text-center font-bold text-xs">B</div>
                            <div class="bg-blue-900 p-1 text-center font-bold text-xs">C</div>
                            <div class="bg-blue-900 p-1 text-center font-bold text-xs">D</div>
                            <div class="bg-blue-900 p-1 text-center font-bold text-xs">E</div>
                            <div class="bg-blue-900 p-1 text-center font-bold text-xs">F</div>
                            <div class="bg-blue-900 p-1 text-center font-bold text-xs">G</div>
                            <div class="bg-blue-900 p-1 text-center font-bold text-xs">H</div>
                            
                            <!-- Row 1 -->
                            <div class="bg-gray-700 p-1 text-center border border-gray-600">1</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">Sales</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">Q1</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">Q2</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">Q3</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">Q4</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">Total</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">Avg</div>
                            
                            <!-- Row 2 -->
                            <div class="bg-gray-700 p-1 text-center border border-gray-600">2</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">North</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">$12,345</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">$15,678</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">$18,901</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">$21,234</div>
                            <div class="bg-gray-700 p-1 border border-gray-600 font-bold">=SUM(B2:E2)</div>
                            <div class="bg-gray-700 p-1 border border-gray-600">=AVERAGE(B2:E2)</div>
                        </div>
                        
                        <!-- Status Bar -->
                        <div id="status-bar" class="bg-gray-700 p-1 mt-2 rounded-b-lg flex justify-between text-xs">
                            <div>Ready</div>
                            <div class="flex space-x-4">
                                <span>Sum: $68,158.00</span>
                                <span>Average: $17,039.50</span>
                                <span>Count: 4</span>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Slide 4 - Basic Navigation -->
            <div class="slide" data-slide="4">
                <h2 class="text-3xl font-bold mb-6 text-blue-400">Basic Navigation & Selection</h2>
                <div class="grid md:grid-cols-2 gap-6">
                    <div>
                        <h3 class="text-xl font-bold mb-4 text-green-300">Selection Techniques</h3>
                        <div class="space-y-4">
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Single Cell</div>
                                <p>Click on any cell to select it</p>
                                <div class="mt-2 bg-gray-800 p-2 rounded text-xs font-mono">A1</div>
                            </div>
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Range of Cells</div>
                                <p>Click and drag to select multiple cells</p>
                                <div class="mt-2 bg-gray-800 p-2 rounded text-xs font-mono">A1:D10</div>
                            </div>
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Entire Row/Column</div>
                                <p>Click on row number or column letter</p>
                                <div class="mt-2 bg-gray-800 p-2 rounded text-xs font-mono">1:1 (Row 1)<br>A:A (Column A)</div>
                            </div>
                        </div>
                    </div>
                    <div>
                        <h3 class="text-xl font-bold mb-4 text-green-300">Keyboard Shortcuts</h3>
                        <div class="space-y-4">
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Navigation</div>
                                <div class="grid grid-cols-2 gap-2 text-sm">
                                    <div><span class="font-bold">Arrow keys:</span> Move cell</div>
                                    <div><span class="font-bold">Ctrl+Arrow:</span> Jump to edge</div>
                                    <div><span class="font-bold">Home:</span> Row start</div>
                                    <div><span class="font-bold">Ctrl+Home:</span> A1</div>
                                </div>
                            </div>
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Selection</div>
                                <div class="grid grid-cols-2 gap-2 text-sm">
                                    <div><span class="font-bold">Shift+Arrow:</span> Extend selection</div>
                                    <div><span class="font-bold">Ctrl+Shift+Arrow:</span> Select to edge</div>
                                    <div><span class="font-bold">Ctrl+A:</span> Select all</div>
                                    <div><span class="font-bold">Ctrl+Space:</span> Select column</div>
                                </div>
                            </div>
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Special</div>
                                <div class="grid grid-cols-2 gap-2 text-sm">
                                    <div><span class="font-bold">F2:</span> Edit cell</div>
                                    <div><span class="font-bold">Ctrl+Enter:</span> Fill selection</div>
                                    <div><span class="font-bold">Alt+Enter:</span> New line in cell</div>
                                    <div><span class="font-bold">Ctrl+D:</span> Fill down</div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Slide 5 - Basic Formulas -->
            <div class="slide" data-slide="5">
                <h2 class="text-3xl font-bold mb-6 text-blue-400">Essential Excel Formulas</h2>
                <div class="grid md:grid-cols-3 gap-4 mb-8">
                    <div class="bg-gray-700 p-4 rounded-lg border-t-4 border-blue-500">
                        <div class="font-bold text-lg mb-2">SUM</div>
                        <div class="text-sm mb-3">Adds all numbers in a range</div>
                        <div class="bg-gray-800 p-2 rounded font-mono text-sm">=SUM(A1:A10)</div>
                    </div>
                    <div class="bg-gray-700 p-4 rounded-lg border-t-4 border-green-500">
                        <div class="font-bold text-lg mb-2">AVERAGE</div>
                        <div class="text-sm mb-3">Calculates the average</div>
                        <div class="bg-gray-800 p-2 rounded font-mono text-sm">=AVERAGE(B2:B20)</div>
                    </div>
                    <div class="bg-gray-700 p-4 rounded-lg border-t-4 border-yellow-500">
                        <div class="font-bold text-lg mb-2">IF</div>
                        <div class="text-sm mb-3">Conditional logic</div>
                        <div class="bg-gray-800 p-2 rounded font-mono text-sm">=IF(A1>100,"High","Low")</div>
                    </div>
                    <div class="bg-gray-700 p-4 rounded-lg border-t-4 border-purple-500">
                        <div class="font-bold text-lg mb-2">VLOOKUP</div>
                        <div class="text-sm mb-3">Vertical lookup</div>
                        <div class="bg-gray-800 p-2 rounded font-mono text-sm">=VLOOKUP(A1,B:C,2,FALSE)</div>
                    </div>
                    <div class="bg-gray-700 p-4 rounded-lg border-t-4 border-red-500">
                        <div class="font-bold text-lg mb-2">COUNTIF</div>
                        <div class="text-sm mb-3">Conditional counting</div>
                        <div class="bg-gray-800 p-2 rounded font-mono text-sm">=COUNTIF(A:A,">100")</div>
                    </div>
                    <div class="bg-gray-700 p-4 rounded-lg border-t-4 border-pink-500">
                        <div class="font-bold text-lg mb-2">CONCATENATE</div>
                        <div class="text-sm mb-3">Combine text</div>
                        <div class="bg-gray-800 p-2 rounded font-mono text-sm">=CONCAT(A1," ",B1)</div>
                    </div>
                </div>
                
                <div class="bg-gray-900 p-6 rounded-lg border border-gray-700">
                    <h3 class="text-xl font-bold mb-4 text-green-300">Formula Demo</h3>
                    <div class="grid grid-cols-5 gap-1 mb-4">
                        <div class="bg-blue-900 p-2 text-center font-bold text-xs">A</div>
                        <div class="bg-blue-900 p-2 text-center font-bold text-xs">B</div>
                        <div class="bg-blue-900 p-2 text-center font-bold text-xs">C</div>
                        <div class="bg-blue-900 p-2 text-center font-bold text-xs">D</div>
                        <div class="bg-blue-900 p-2 text-center font-bold text-xs">E</div>
                    </div>
                    <div class="grid grid-cols-5 gap-1">
                        <div class="bg-gray-700 p-2 text-center border border-gray-600">1</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">Item</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">Price</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">Qty</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">Total</div>
                        
                        <div class="bg-gray-700 p-2 text-center border border-gray-600">2</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">Widget</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">$19.99</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">5</div>
                        <div class="bg-gray-700 p-2 border border-gray-600 font-bold">=B2*C2</div>
                        
                        <div class="bg-gray-700 p-2 text-center border border-gray-600">3</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">Gadget</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">$29.99</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">3</div>
                        <div class="bg-gray-700 p-2 border border-gray-600 font-bold">=B3*C3</div>
                        
                        <div class="bg-gray-700 p-2 text-center border border-gray-600">4</div>
                        <div class="bg-gray-700 p-2 border border-gray-600">Total</div>
                        <div class="bg-gray-700 p-2 border border-gray-600"></div>
                        <div class="bg-gray-700 p-2 border border-gray-600">=SUM(C2:C3)</div>
                        <div class="bg-gray-700 p-2 border border-gray-600 font-bold">=SUM(D2:D3)</div>
                    </div>
                </div>
            </div>

            <!-- Slide 6 - Data Visualization -->
            <div class="slide" data-slide="6">
                <h2 class="text-3xl font-bold mb-6 text-blue-400">Data Visualization</h2>
                <div class="grid md:grid-cols-2 gap-6 mb-8">
                    <div>
                        <h3 class="text-xl font-bold mb-4 text-green-300">Chart Types</h3>
                        <div class="space-y-4">
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Column/Bar Charts</div>
                                <p>Compare values across categories</p>
                            </div>
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Line Charts</div>
                                <p>Show trends over time</p>
                            </div>
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Pie Charts</div>
                                <p>Display parts of a whole</p>
                            </div>
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Scatter Plots</div>
                                <p>Show relationships between variables</p>
                            </div>
                        </div>
                    </div>
                    <div>
                        <h3 class="text-xl font-bold mb-4 text-green-300">Conditional Formatting</h3>
                        <div class="space-y-4">
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Data Bars</div>
                                <p>Visualize values as proportional bars</p>
                            </div>
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Color Scales</div>
                                <p>Gradient colors based on value</p>
                            </div>
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Icon Sets</div>
                                <p>Use icons to represent data ranges</p>
                            </div>
                            <div class="bg-gray-700 p-4 rounded-lg">
                                <div class="font-bold text-blue-300 mb-2">Custom Rules</div>
                                <p>Highlight cells based on your criteria</p>
                            </div>
                        </div>
                    </div>
                </div>
                
                <div class="bg-gray-900 p-6 rounded-lg border border-gray-700">
                    <h3 class="text-xl font-bold mb-4 text-green-300">Chart Example</h3>
                    <div class="flex flex-col md:flex-row items-center">
                        <div class="md:w-1/2 mb-6 md:mb-0">
                            <div class="bg-gray-800 p-4 rounded-lg">
                                <div class="h-64 flex items-end space-x-4">
                                    <div class="flex-1 bg-blue-500 h-3/4 rounded-t flex items-end justify-center">
                                        <div class="text-xs -mb-6 transform rotate-90 origin-left">Q1 $12,345</div>
                                    </div>
                                    <div class="flex-1 bg-green-500 h-full rounded-t flex items-end justify-center">
                                        <div class="text-xs -mb-6 transform rotate-90 origin-left">Q2 $15,678</div>
                                    </div>
                                    <div class="flex-1 bg-yellow-500 h-5/6 rounded-t flex items-end justify-center">
                                        <div class="text-xs -mb-6 transform rotate-90 origin-left">Q3 $18,901</div>
                                    </div>
                                    <div class="flex-1 bg-red-500 h-4/5 rounded-t flex items-end justify-center">
                                        <div class="text-xs -mb-6 transform rotate-90 origin-left">Q4 $21,234</div>
                                    </div>
                                </div>
                                <div class="flex justify-between mt-2 text-xs">
                                    <span>Q1</span>
                                    <span>Q2</span>
                                    <span>Q3</span>
                                    <span>Q4</span>
                                </div>
                                <div class="text-center mt-2 font-bold">Quarterly Sales</div>
                            </div>
                        </div>
                        <div class="md:w-1/2">
                            <div class="bg-gray-800 p-4 rounded-lg">
                                <div class="h-64 flex items-center justify-center">
                                    <div class="relative w-48 h-48">
                                        <div class="absolute inset-0 rounded-full border-8 border-blue-500" style="clip-path: polygon(50% 50%, 50% 0%, 100% 0%, 100% 100%, 50% 50%)"></div>
                                        <div class="absolute inset-0 rounded-full border-8 border-green-500" style="clip-path: polygon(50% 50%, 100% 0%, 100% 100%, 0% 100%, 50% 50%)"></div>
                                        <div class="absolute inset-0 rounded-full border-8 border-yellow-500" style="clip-path: polygon(50% 50%, 0% 100%, 0% 0%, 100% 0%, 50% 50%)"></div>
                                    </div>
                                </div>
                                <div class="flex justify-center space-x-4 mt-2 text-xs">
                                    <div class="flex items-center"><div class="w-3 h-3 bg-blue-500 mr-1"></div> Q1</div>
                                    <div class="flex items-center"><div class="w-3 h-3 bg-green-500 mr-1"></div> Q2</div>
                                    <div class="flex items-center"><div class="w-3 h-3 bg-yellow-500 mr-1"></div> Q3</div>
                                </div>
                                <div class="text-center mt-1 font-bold">Sales Distribution</div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Slide 7 - Advanced Features -->
            <div class="slide" data-slide="7">
                <h2 class="text-3xl font-bold mb-6 text-blue-400">Advanced Excel Features</h2>
                <div class="grid md:grid-cols-2 gap-6">
                    <div>
                        <h3 class="text-xl font-bold mb-4 text-green-300">PivotTables</h3>
                        <div class="bg-gray-700 p-4 rounded-lg mb-6">
                            <p class="mb-3">PivotTables summarize large datasets quickly and allow for interactive data exploration.</p>
                            <div class="bg-gray-800 p-3 rounded">
                                <div class="text-sm font-bold mb-1">How to create:</div>
                                <ol class="list-decimal list-inside text-sm space-y-1">
                                    <li>Select your data range</li>
                                    <li>Go to Insert > PivotTable</li>
                                    <li>Choose where to place it</li>
                                    <li>Drag fields to areas</li>
                                </ol>
                            </div>
                        </div>
                        
                        <h3 class="text-xl font-bold mb-4 text-green-300">Data Validation</h3>
                        <div class="bg-gray-700 p-4 rounded-lg">
                            <p class="mb-3">Control what data can be entered into cells to prevent errors.</p>
                            <div class="bg-gray-800 p-3 rounded">
                                <div class="text-sm font-bold mb-1">Options include:</div>
                                <ul class="list-disc list-inside text-sm space-y-1">
                                    <li>Whole numbers within a range</li>
                                    <li>Decimal numbers</li>
                                    <li>List of allowed values</li>
                                    <li>Custom formulas</li>
                                </ul>
                            </div>
                        </div>
                    </div>
                    <div>
                        <h3 class="text-xl font-bold mb-4 text-green-300">Macros & VBA</h3>
                        <div class="bg-gray-700 p-4 rounded-lg mb-6">
                            <p class="mb-3">Automate repetitive tasks by recording macros or writing VBA code.</p>
                            <div class="bg-gray-800 p-3 rounded">
                                <div class="text-sm font-bold mb-1">Example Macro Uses:</div>
                                <ul class="list-disc list-inside text-sm space-y-1">
                                    <li>Format reports automatically</li>
                                    <li>Import and clean data</li>
                                    <li>Create custom functions</li>
                                    <li>Build user forms</li>
                                </ul>
                            </div>
                        </div>
                        
                        <h3 class="text-xl font-bold mb-4 text-green-300">Power Query</h3>
                        <div class="bg-gray-700 p-4 rounded-lg">
                            <p class="mb-3">Import, transform, and combine data from multiple sources with ease.</p>
                            <div class="bg-gray-800 p-3 rounded">
                                <div class="text-sm font-bold mb-1">Key Features:</div>
                                <ul class="list-disc list-inside text-sm space-y-1">
                                    <li>Connect to databases, web, files</li>
                                    <li>Clean and reshape data</li>
                                    <li>Create reusable queries</li>
                                    <li>Automatically refresh</li>
                                </ul>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Slide 8 - Conclusion -->
            <div class="slide" data-slide="8">
                <div class="text-center py-12">
                    <i class="fas fa-file-excel text-8xl text-green-500 excel-icon mb-6"></i>
                    <h2 class="text-4xl font-bold mb-6 bg-clip-text text-transparent bg-gradient-to-r from-blue-400 to-green-400">
                        Excel Mastery Achieved!
                    </h2>
                    <p class="text-xl mb-8 max-w-2xl mx-auto">
                        You've now learned the essential skills to work efficiently with Excel. 
                        Remember, practice is key to becoming truly proficient!
                    </p>
                    
                    <div class="grid md:grid-cols-3 gap-6 max-w-4xl mx-auto mb-10">
                        <div class="bg-gray-700 p-6 rounded-lg">
                            <div class="text-4xl text-blue-400 mb-3">
                                <i class="fas fa-book"></i>
                            </div>
                            <h3 class="font-bold mb-2">Keep Learning</h3>
                            <p class="text-sm">Explore advanced functions and features as you grow more comfortable.</p>
                        </div>
                        <div class="bg-gray-700 p-6 rounded-lg">
                            <div class="text-4xl text-green-400 mb-3">
                                <i class="fas fa-keyboard"></i>
                            </div>
                            <h3 class="font-bold mb-2">Use Shortcuts</h3>
                            <p class="text-sm">Keyboard shortcuts will dramatically increase your productivity.</p>
                        </div>
                        <div class="bg-gray-700 p-6 rounded-lg">
                            <div class="text-4xl text-yellow-400 mb-3">
                                <i class="fas fa-project-diagram"></i>
                            </div>
                            <h3 class="font-bold mb-2">Apply Knowledge</h3>
                            <p class="text-sm">Start using Excel for your own projects to reinforce what you've learned.</p>
                        </div>
                    </div>
                    
                    <div class="bg-gray-800 p-6 rounded-lg max-w-2xl mx-auto border border-gray-700">
                        <h3 class="font-bold text-lg mb-3">Next Steps</h3>
                        <ul class="space-y-2 text-left">
                            <li class="flex items-start"><i class="fas fa-robot mt-1 mr-2 text-blue-300"></i> Try our AI-powered Excel assistant for personalized tips</li>
                            <li class="flex items-start"><i class="fas fa-certificate mt-1 mr-2 text-green-300"></i> Consider Microsoft Office certification</li>
                            <li class="flex items-start"><i class="fas fa-users mt-1 mr-2 text-yellow-300"></i> Join Excel communities to learn from others</li>
                        </ul>
                    </div>
                </div>
            </div>
        </div>
    </div>

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