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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>Procrustes Analysis Web Server</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.7.2/font/bootstrap-icons.css">
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap" rel="stylesheet">
    <style>
        :root {
            --sidebar-width: 280px;
            --primary-color: #2563eb;
            --sidebar-bg: #f8fafc;
            --header-bg: #f1f5f9;
            --border-color: #e2e8f0;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            color: var(--text-primary);
            line-height: 1.6;
        }

        .wrapper {
            display: flex;
            width: 100%;
            align-items: stretch;
        }

        #sidebar {
            min-width: var(--sidebar-width);
            max-width: var(--sidebar-width);
            min-height: 100vh;
            transition: all 0.3s ease-out;
            background-color: var(--sidebar-bg);
            border-right: 1px solid var(--border-color);
        }

        #sidebar.active {
            margin-left: calc(-1 * var(--sidebar-width));
        }

        #content {
            width: 100%;
            padding: 2rem;
            min-height: 100vh;
            margin-left: 0;
            transition: all 0.3s ease-out;
            background-color: white;
            padding-bottom: 4rem;
        }

        .sidebar-header {
            padding: 1.5rem;
            background: var(--header-bg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--border-color);
        }

        #sidebarCollapse, #showSidebarBtn {
            background: transparent;
            border: none;
            padding: 0.5rem;
            color: var(--text-primary);
            border-radius: 0.375rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s;
        }

        #sidebarCollapse:hover, #showSidebarBtn:hover {
            background: rgba(0, 0, 0, 0.05);
            transform: translateX(2px);
        }

        #sidebarCollapse i {
            transition: transform 0.3s ease;
        }

        #sidebar.active #sidebarCollapse i {
            transform: rotate(180deg);
        }

        #showSidebarBtn {
            position: fixed;
            left: 1.5rem;
            top: 1.5rem;
            z-index: 1000;
            display: none;
            background-color: white;
            border: 1px solid var(--border-color);
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }

        #showSidebarBtn.show {
            display: flex;
        }

        .sidebar-title {
            margin: 0;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 1.125rem;
        }

        .components {
            padding: 1.5rem 0;
        }

        .components a {
            padding: 0.75rem 1.5rem;
            display: flex;
            align-items: center;
            color: var(--text-secondary);
            text-decoration: none;
            transition: all 0.2s;
            font-weight: 500;
        }

        .components a i {
            margin-right: 0.75rem;
            font-size: 1.25rem;
        }

        .components a:hover {
            background: var(--header-bg);
            color: var(--text-primary);
        }

        .components a.active {
            background: var(--header-bg);
            color: var(--primary-color);
            border-right: 3px solid var(--primary-color);
        }

        .card {
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }

        .card-body {
            padding: 1.5rem;
        }

        .form-label {
            font-weight: 500;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .form-control, .form-select {
            border-color: var(--border-color);
            border-radius: 0.375rem;
            padding: 0.625rem;
        }

        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
        }

        .btn-primary {
            background-color: var(--primary-color);
            border: none;
            padding: 0.625rem 1.25rem;
            font-weight: 500;
        }

        .btn-primary:hover {
            background-color: #1d4ed8;
        }

        .btn-success, .btn-info {
            font-weight: 500;
            padding: 0.625rem 1.25rem;
        }

        .loading {
            display: none;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem;
            background-color: var(--sidebar-bg);
            border-radius: 0.375rem;
        }

        .result-section {
            display: none;
            margin-top: 2rem;
        }

        .bg-light {
            background-color: var(--sidebar-bg) !important;
            border-radius: 0.375rem;
        }

        h2 {
            font-weight: 600;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
        }

        h5, h6 {
            font-weight: 600;
            color: var(--text-primary);
        }

        .footer {
            position: fixed;
            bottom: 0;
            width: 100%;
            background-color: var(--header-bg);
            border-top: 1px solid var(--border-color);
            padding: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            z-index: 1000;
        }

        .footer .copyright {
            color: var(--text-secondary);
            font-size: 0.875rem;
        }

        .footer .status {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-secondary);
            font-size: 0.875rem;
        }

        .footer .status .status-indicator {
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }

        .footer .status .status-details {
            display: none;
            position: absolute;
            bottom: 100%;
            right: 1rem;
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            padding: 1rem;
            box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
            min-width: 200px;
        }

        .footer .status:hover .status-details {
            display: block;
        }

        .status-details div {
            margin-bottom: 0.5rem;
        }

        .status-details .component {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .status-details .component-indicator {
            width: 6px;
            height: 6px;
            border-radius: 50%;
        }

        .status-details .resources {
            margin-top: 0.75rem;
            padding-top: 0.75rem;
            border-top: 1px solid var(--border-color);
        }

        /* Markdown content styling */
        .section {
            padding: 2rem;
        }

        .section table {
            border-collapse: collapse;
            margin: 1rem 0;
            width: 100%;
        }

        .section table th,
        .section table td {
            border: 1px solid var(--border-color);
            padding: 0.75rem;
            text-align: left;
        }

        .section table th {
            background-color: var(--header-bg);
            font-weight: 600;
        }

        .section table tr:nth-child(even) {
            background-color: var(--header-bg);
        }

        .section h1,
        .section h2,
        .section h3 {
            color: var(--text-primary);
            margin-top: 2rem;
            margin-bottom: 1rem;
        }

        .section h1 {
            font-size: 2rem;
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 0.5rem;
        }

        .section h2 {
            font-size: 1.5rem;
        }

        .section h3 {
            font-size: 1.25rem;
        }

        .section p {
            margin-bottom: 1rem;
            line-height: 1.6;
        }

        .section ul,
        .section ol {
            margin-bottom: 1rem;
            padding-left: 2rem;
        }

        .section li {
            margin-bottom: 0.5rem;
        }

        .section code {
            background-color: var(--header-bg);
            padding: 0.2rem 0.4rem;
            border-radius: 0.25rem;
            font-family: monospace;
        }

        .section pre {
            background-color: var(--header-bg);
            padding: 1rem;
            border-radius: 0.5rem;
            overflow-x: auto;
            margin: 1rem 0;
        }

        .section a {
            color: var(--primary-color);
            text-decoration: none;
        }

        .section a:hover {
            text-decoration: underline;
        }

        /* Math equations */
        .section .MathJax_Display {
            overflow-x: auto;
            max-width: 100%;
            margin: 1em 0;
        }

        .section .MathJax {
            font-size: 1.1em !important;
        }

        .section .math-block {
            overflow-x: auto;
            margin: 1em 0;
            text-align: center;
        }
    </style>
    <!-- MathJax Configuration -->
        <script type="text/x-mathjax-config">
        MathJax.Hub.Config({
            tex2jax: {
        inlineMath: [['$','$'], ['\\(','\\)']],
        displayMath: [['$$','$$'], ['\\[','\\]']],
        processEscapes: true,
        processEnvironments: true
        },
        displayAlign: 'center',
        "HTML-CSS": {
            styles: {'.MathJax_Display': {"margin": 0}},
            linebreaks: { automatic: true }
        }
        });
    </script>

    <!-- MathJax Loading -->
    <script type="text/javascript" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML"></script>
</head>
<body>
    <button type="button" id="showSidebarBtn" class="btn">
        <i class="bi bi-chevron-right"></i>
    </button>

    <div class="wrapper">
        <!-- Sidebar -->
        <nav id="sidebar">
            <div class="sidebar-header">
                <h5 class="sidebar-title">Procrustes Server</h5>
                <button type="button" id="sidebarCollapse" class="btn">
                    <i class="bi bi-chevron-left"></i>
                </button>
            </div>

            <div class="components">
                <a href="#about" class="nav-link" data-section="about">
                    <i class="bi bi-book"></i> About Procrustes
                </a>
                <a href="#tools" class="nav-link" data-section="tools">
                    <i class="bi bi-tools"></i> Procrustes Tools
                </a>
                <a href="#contact" class="nav-link" data-section="contact">
                    <i class="bi bi-envelope"></i> Contact
                </a>
            </div>
        </nav>

        <!-- Page Content -->
        <div id="content">
            <!-- About Section -->
            <div id="about" class="section" style="display: none;">
                <h2>About Procrustes Analysis</h2>
                <div id="about-content">Loading...</div>
            </div>

            <!-- Tools Section -->
            <div id="tools" class="section">
                <h2>Procrustes Analysis Tools</h2>
                <div class="card">
                    <div class="card-body">
                        <form id="uploadForm" enctype="multipart/form-data">
                            <div class="mb-3">
                                <label for="algorithm" class="form-label">Select Algorithm</label>
                                <select class="form-select" id="algorithm" name="algorithm" required>
                                    <option value="orthogonal">orthogonal</option>
                                    <option value="rotational">rotational</option>
                                    <option value="permutation">permutation</option>
                                    <!-- <option value="generalized">generalized</option> -->
                                    <option value="generic">generic</option>
                                    <!-- <option value="kopt_heuristic_single">kopt_heuristic_single</option> -->
                                    <!-- <option value="kopt_heuristic_double">kopt_heuristic_double</option> -->
                                    <option value="orthogonal_2sided">orthogonal_2sided</option>
                                    <option value="permutation_2sided">permutation_2sided</option>
                                    <option value="softassign">softassign</option>
                                    <option value="symmetric">symmetric</option>
                                </select>
                            </div>

                            <div class="mb-3">
                                <label for="parameters" class="form-label">Additional Parameters (JSON format)</label>
                                <textarea class="form-control font-monospace" id="parameters" name="parameters" rows="10"></textarea>
                            </div>

                            <div class="mb-3">
                                <label for="file1" class="form-label">First Matrix (NPZ/Excel/TXT)</label>
                                <input type="file" class="form-control" id="file1" name="file1" accept=".npz,.xlsx,.xls,.txt" required>
                            </div>

                            <div class="mb-3">
                                <label for="file2" class="form-label">Second Matrix (NPZ/Excel/TXT)</label>
                                <input type="file" class="form-control" id="file2" name="file2" accept=".npz,.xlsx,.xls,.txt" required>
                            </div>

                            <button type="submit" class="btn btn-primary">Analyze</button>
                        </form>

                        <div class="loading mt-3">
                            <div class="spinner-border text-primary" role="status">
                                <span class="visually-hidden">Loading...</span>
                            </div>
                            <span class="ms-2">Processing...</span>
                        </div>
                    </div>
                </div>

                <div id="resultSection" class="result-section">
                    <div class="card">
                        <div class="card-body">
                            <h5 class="card-title">Results</h5>
                            <p>Procrustes Error: <span id="error" class="fw-bold"></span></p>

                            <div class="mb-3">
                                <h6>Transformation Matrix:</h6>
                                <div id="transformationMatrix" class="bg-light p-3 mb-3" style="font-family: monospace;">
                                </div>
                            </div>

                            <div class="mb-3">
                                <h6>Transformed Array:</h6>
                                <div id="transformedArray" class="bg-light p-3 mb-3" style="font-family: monospace;">
                                </div>
                            </div>

                            <div class="mb-3">
                                <label class="form-label">Download Format</label>
                                <select class="form-select" id="downloadFormat">
                                    <option value="npz">NPZ</option>
                                    <option value="xlsx">Excel</option>
                                    <option value="txt">TXT</option>
                                </select>
                            </div>

                            <div class="btn-group">
                                <button class="btn btn-success" onclick="downloadResult('transformation')">
                                    Download Transformation Matrix
                                </button>
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