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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>Portfolio: Contract Versioning System</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">
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
    <style>
        /* Apply Inter font */
        body {
            font-family: 'Inter', sans-serif;
            scroll-behavior: smooth;
        }
        
        /* Gradient background for hero section */
        .hero-gradient {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #bae6fd 100%);
        }
        
        /* Animation classes */
        .animate-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        
        .animate-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        /* Feature cards */
        .feature-card {
            background-color: white;
            border-radius: 0.75rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
        }
        
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: #3b82f6;
            transition: height 0.3s ease;
        }
        
        .feature-card:hover::before {
            height: 100%;
        }
        
        /* Step indicators */
        .step-indicator {
            position: relative;
        }
        
        .step-indicator:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 50%;
            right: -2rem;
            width: 1.5rem;
            height: 2px;
            background: #d1d5db;
            transform: translateY(-50%);
        }
        
        /* Diff visualization */
        .diff-container {
            background: #f8fafc;
            border-radius: 0.5rem;
            overflow: hidden;
        }
        
        .diff-line {
            padding: 0.25rem 1rem;
            font-family: 'Courier New', monospace;
            font-size: 0.875rem;
        }
        
        .diff-added {
            background-color: #dcfce7;
            border-left: 3px solid #22c55e;
        }
        
        .diff-removed {
            background-color: #fee2e2;
            border-left: 3px solid #ef4444;
        }
        
        .diff-unchanged {
            background-color: white;
        }
        
        /* Floating action button */
        .fab {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 50%;
            background: #3b82f6;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            z-index: 50;
        }
        
        .fab:hover {
            transform: translateY(-3px) scale(1.05);
            background: #2563eb;
        }
        
        /* Tech stack icons */
        .tech-icon {
            width: 3rem;
            height: 3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 0.5rem;
            background: white;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
        }
        
        /* Responsive adjustments */
        @media (max-width: 768px) {
            .step-indicator:not(:last-child)::after {
                display: none;
            }
        }
    </style>
</head>
<body class="bg-gray-50 text-gray-800 leading-relaxed">

    <!-- Floating action button -->
    <a href="#contact" class="fab animate-in" style="transition-delay: 0.4s;">
        <i class="fas fa-paper-plane text-xl"></i>
    </a>

    <header class="bg-white shadow-sm sticky top-0 z-50">
        <nav class="container mx-auto px-6 py-4 flex justify-between items-center">
            <div class="flex items-center space-x-2">
                <div class="bg-blue-100 text-blue-600 p-2 rounded-lg">
                    <i class="fas fa-file-contract text-xl"></i>
                </div>
                <div class="text-xl font-bold text-gray-900">ContractFlow</div>
            </div>
            <div class="hidden md:flex space-x-6">
                <a href="#features" class="text-gray-600 hover:text-blue-600 transition">Features</a>
                <a href="#how-it-works" class="text-gray-600 hover:text-blue-600 transition">How It Works</a>
                <a href="#tech-stack" class="text-gray-600 hover:text-blue-600 transition">Technology</a>
                <a href="#contact" class="text-gray-600 hover:text-blue-600 transition">Contact</a>
            </div>
            <button class="md:hidden text-gray-600">
                <i class="fas fa-bars text-xl"></i>
            </button>
        </nav>
    </header>

    <main>
        <!-- Hero Section -->
        <section id="hero" class="hero-gradient py-20 md:py-28">
            <div class="container mx-auto px-6">
                <div class="max-w-4xl mx-auto text-center">
                    <div class="inline-block px-4 py-2 bg-white rounded-full shadow-sm mb-6 animate-in">
                        <span class="text-blue-600 font-medium">Version 2.0 Released</span>
                    </div>
                    <h1 class="text-4xl md:text-5xl font-bold text-gray-900 mb-6 animate-in">Revolutionizing Contract Management</h1>
                    <p class="text-xl md:text-2xl text-gray-700 mb-8 animate-in" style="transition-delay: 0.1s;">Git-like version control for legal documents. Track changes, collaborate seamlessly, and finalize contracts faster.</p>
                    
                    <div class="flex flex-col sm:flex-row justify-center gap-4 mb-16 animate-in" style="transition-delay: 0.2s;">
                        <a href="#features" class="bg-blue-600 hover:bg-blue-700 text-white font-semibold py-3 px-6 rounded-lg transition duration-300 inline-flex items-center justify-center">
                            <i class="fas fa-rocket mr-2"></i> Explore Features
                        </a>
                        <a href="#demo" class="bg-white hover:bg-gray-50 text-gray-800 font-semibold py-3 px-6 rounded-lg transition duration-300 inline-flex items-center justify-center border border-gray-200">
                            <i class="fas fa-play-circle mr-2 text-blue-600"></i> Watch Demo
                        </a>
                    </div>
                    
                    <div class="bg-white p-6 rounded-xl shadow-md animate-in" style="transition-delay: 0.3s;">
                        <div class="diff-container">
                            <div class="diff-line diff-removed">- This Agreement is made and entered into as of [Date] by and between</div>
                            <div class="diff-line diff-added">+ This Agreement is made and entered into as of January 15, 2023 by and between</div>
                            <div class="diff-line diff-unchanged">  Party A ("Client") and Party B ("Service Provider").</div>
                            <div class="diff-line diff-removed">- The term of this Agreement shall be one (1) year.</div>
                            <div class="diff-line diff-added">+ The initial term of this Agreement shall be two (2) years.</div>
                            <div class="diff-line diff-added">+ Either party may terminate this Agreement with thirty (30) days written notice.</div>
                        </div>
                        <p class="text-sm text-gray-500 mt-3">Example of visual diff comparison between contract versions</p>
                    </div>
                </div>
            </div>
        </section>

        <!-- Problem Section -->
        <section id="problem" class="py-20 scroll-mt-20">
            <div class="container mx-auto px-6">
                <div class="max-w-4xl mx-auto">
                    <div class="text-center mb-12">
                        <h2 class="text-3xl font-semibold text-gray-900 mb-4 animate-in">The Contract Negotiation Nightmare</h2>
                        <div class="w-20 h-1 bg-blue-600 mx-auto mb-6 animate-in" style="transition-delay: 0.1s;"></div>
                        <p class="text-gray-600 text-lg animate-in" style="transition-delay: 0.2s;">Traditional contract negotiation is plagued with inefficiencies that cost time and money.</p>
                    </div>
                    
                    <div class="grid grid-cols-1 md:grid-cols-3 gap-8">
                        <div class="bg-white p-6 rounded-xl shadow-sm animate-in">
                            <div class="text-blue-600 mb-4">
                                <i class="fas fa-envelope text-3xl"></i>
                            </div>
                            <h3 class="font-semibold text-lg mb-2">Email Chaos</h3>
                            <p class="text-gray-600">Version confusion with attachments named "Contract_Final_v3_Revised_FINAL.docx"</p>
                        </div>
                        
                        <div class="bg-white p-6 rounded-xl shadow-sm animate-in" style="transition-delay: 0.1s;">
                            <div class="text-blue-600 mb-4">
                                <i class="fas fa-search text-3xl"></i>
                            </div>
                            <h3 class="font-semibold text-lg mb-2">Manual Comparisons</h3>
                            <p class="text-gray-600">Hours wasted comparing documents side-by-side to spot changes</p>
                        </div>
                        
                        <div class="bg-white p-6 rounded-xl shadow-sm animate-in" style="transition-delay: 0.2s;">
                            <div class="text-blue-600 mb-4">
                                <i class="fas fa-users-slash text-3xl"></i>
                            </div>
                            <h3 class="font-semibold text-lg mb-2">Collaboration Issues</h3>
                            <p class="text-gray-600">No clear record of who made which changes and when</p>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Solution Section -->
        <section id="solution" class="py-20 bg-gray-50 scroll-mt-20">
            <div class="container mx-auto px-6">
                <div class="max-w-4xl mx-auto">
                    <div class="text-center mb-12">
                        <h2 class="text-3xl font-semibold text-gray-900 mb-4 animate-in">Modern Solution for Contract Management</h2>
                        <div class="w-20 h-1 bg-blue-600 mx-auto mb-6 animate-in" style="transition-delay: 0.1s;"></div>
                        <p class="text-gray-600 text-lg animate-in" style="transition-delay: 0.2s;">Applying software engineering best practices to legal document workflows.</p>
                    </div>
                    
                    <div class="flex flex-col md:flex-row items-center gap-8">
                        <div class="md:w-1/2 animate-in">
                            <img src="https://images.unsplash.com/photo-1551288049-bebda4e38f71?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1470&q=80" 
                                 alt="Contract management" 
                                 class="rounded-xl shadow-lg w-full h-auto">
                        </div>
                        
                        <div class="md:w-1/2 space-y-6 animate-in" style="transition-delay: 0.1s;">
                            <div class="flex items-start">
                                <div class="bg-blue-100 text-blue-600 p-2 rounded-lg mr-4">
                                    <i class="fas fa-history text-lg"></i>
                                </div>
                                <div>
                                    <h3 class="font-semibold text-lg mb-1">Complete Version History</h3>
                                    <p class="text-gray-600">Every edit is tracked with timestamps and attribution. Roll back to any previous version with one click.</p>
                                </div>
                            </div>
                            
                            <div class="flex items-start">
                                <div class="bg-blue-100 text-blue-600 p-2 rounded-lg mr-4">
                                    <i class="fas fa-code-compare text-lg"></i>
                                </div>
                                <div>
                                    <h3 class="font-semibold text-lg mb-1">Visual Diff Comparison</h3>
                                    <p class="text-gray-600">Instantly see what changed between any two versions with color-coded highlighting.</p>
                                </div>
                            </div>
                            
                            <div class="flex items-start">
                                <div class="bg-blue-100 text-blue-600 p-2 rounded-lg mr-4">
                                    <i class="fas fa-users text-lg"></i>
                                </div>
                                <div>
                                    <h3 class="font-semibold text-lg mb-1">Collaborative Editing</h3>
                                    <p class="text-gray-600">Multiple stakeholders can work on the same document with tracked changes and comments.</p>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Features Section -->
        <section id="features" class="py-20 scroll-mt-20">
            <div class="container mx-auto px-6">
                <div class="max-w-4xl mx-auto">
                    <div class="text-center mb-12">
                        <h2 class="text-3xl font-semibold text-gray-900 mb-4 animate-in">Powerful Features</h2>
                        <div class="w-20 h-1 bg-blue-600 mx-auto mb-6 animate-in" style="transition-delay: 0.1s;"></div>
                        <p class="text-gray-600 text-lg animate-in" style="transition-delay: 0.2s;">Everything you need for efficient contract management in one platform.</p>
                    </div>
                    
                    <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
                        <!-- Feature 1 -->
                        <div class="feature-card p-6 animate-in">
                            <div class="bg-blue-100 text-blue-600 p-3 rounded-lg inline-block mb-4">
                                <i class="fas fa-code-branch text-xl"></i>
                            </div>
                            <h3 class="text-xl font-semibold mb-3 text-gray-900">Branching & Merging</h3>
                            <p class="text-gray-600">Create alternative versions of clauses or entire documents in isolated branches, then merge approved changes back to the main document.</p>
                        </div>
                        
                        <!-- Feature 2 -->
                        <div class="feature-card p-6 animate-in" style="transition-delay: 0.1s;">
                            <div class="bg-blue-100 text-blue-600 p-3 rounded-lg inline-block mb-4">
                                <i class="fas fa-comment-dots text-xl"></i>
                            </div>
                            <h3 class="text-xl font-semibold mb-3 text-gray-900">Inline Comments</h3>
                            <p class="text-gray-600">Add context to changes with threaded discussions tied to specific document sections. Resolve comments when issues are addressed.</p>
                        </div>
                        
                        <!-- Feature 3 -->
                        <div class="feature-card p-6 animate-in" style="transition-delay: 0.2s;">
                            <div class="bg-blue-100 text-blue-600 p-3 rounded-lg inline-block mb-4">
                                <i class="fas fa-user-shield text-xl"></i>
                            </div>
                            <h3 class="text-xl font-semibold mb-3 text-gray-900">Role-Based Access</h3>
                            <p class="text-gray-600">Control who can view, edit, comment, or approve changes with granular permission settings for each document.</p>
                        </div>
                        
                        <!-- Feature 4 -->
                        <div class="feature-card p-6 animate-in" style="transition-delay: 0.3s;">
                            <div class="bg-blue-100 text-blue-600 p-3 rounded-lg inline-block mb-4">
                                <i class="fas fa-bell text-xl"></i>
                            </div>
                            <h3 class="text-xl font-semibold mb-3 text-gray-900">Change Notifications</h3>
                            <p class="text-gray-600">Get real-time alerts when documents you're watching are modified, with summaries of what changed.</p>
                        </div>
                        
                        <!-- Feature 5 -->
                        <div class="feature-card p-6 animate-in" style="transition-delay: 0.4s;">
                            <div class="bg-blue-100 text-blue-600 p-3 rounded-lg inline-block mb-4">
                                <i class="fas fa-file-export text-xl"></i>
                            </div>
                            <h3 class="text-xl font-semibold mb-3 text-gray-900">Export Versions</h3>
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                            <span>Legal Department, Fortune 500 Company</span>
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