From 8b844b82917fad69a223977b9b2c587cbd23d681 Mon Sep 17 00:00:00 2001
From: s4luorth <s4luorth@uni-trier.de>
Date: Sat, 7 Feb 2026 13:00:51 +0100
Subject: [PATCH] first

---
 .../__pycache__/app.cpython-310.pyc           |  Bin 0 -> 14886 bytes
 website-checker/requirements.txt              |    6 +
 website-checker/templates/index.html          | 1164 +++++++++++++++++
 3 files changed, 1170 insertions(+)
 create mode 100644 website-checker/__pycache__/app.cpython-310.pyc
 create mode 100644 website-checker/requirements.txt
 create mode 100644 website-checker/templates/index.html

diff --git a/website-checker/__pycache__/app.cpython-310.pyc b/website-checker/__pycache__/app.cpython-310.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..fc5dde59339447dca690d16cee8e4a3eef7f32a9
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HcmV?d00001

diff --git a/website-checker/requirements.txt b/website-checker/requirements.txt
new file mode 100644
index 0000000..edf58ad
--- /dev/null
+++ b/website-checker/requirements.txt
@@ -0,0 +1,6 @@
+fastapi
+uvicorn
+jinja2
+requests
+beautifulsoup4
+lxml
diff --git a/website-checker/templates/index.html b/website-checker/templates/index.html
new file mode 100644
index 0000000..b349a10
--- /dev/null
+++ b/website-checker/templates/index.html
@@ -0,0 +1,1164 @@
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>LanguageTool Website Checker</title>
+    <style>
+        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
+
+        :root {
+            --bg: #f8f9fa;
+            --surface: #ffffff;
+            --border: #e2e8f0;
+            --text: #1a202c;
+            --text-secondary: #64748b;
+            --primary: #4f46e5;
+            --primary-hover: #4338ca;
+            --spelling: #ef4444;
+            --spelling-bg: #fef2f2;
+            --grammar: #f59e0b;
+            --grammar-bg: #fffbeb;
+            --style: #3b82f6;
+            --style-bg: #eff6ff;
+            --success: #22c55e;
+            --success-bg: #f0fdf4;
+            --error-bg: #fef2f2;
+            --radius: 8px;
+            --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
+        }
+
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+            background: var(--bg);
+            color: var(--text);
+            line-height: 1.6;
+            min-height: 100vh;
+        }
+
+        .container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
+
+        /* Header */
+        .header {
+            background: var(--surface);
+            border-bottom: 1px solid var(--border);
+            padding: 16px 0;
+            position: sticky;
+            top: 0;
+            z-index: 100;
+        }
+        .header-inner {
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+        }
+        .header h1 {
+            font-size: 18px;
+            font-weight: 700;
+            color: var(--primary);
+        }
+        .header-back {
+            font-size: 14px;
+            color: var(--primary);
+            cursor: pointer;
+            text-decoration: none;
+            display: none;
+        }
+        .header-back:hover { text-decoration: underline; }
+
+        /* Legend */
+        .legend {
+            display: flex;
+            gap: 16px;
+            font-size: 13px;
+            color: var(--text-secondary);
+        }
+        .legend-item { display: flex; align-items: center; gap: 4px; }
+        .legend-dot {
+            width: 10px;
+            height: 10px;
+            border-radius: 50%;
+            display: inline-block;
+        }
+        .legend-dot.spelling { background: var(--spelling); }
+        .legend-dot.grammar { background: var(--grammar); }
+        .legend-dot.style { background: var(--style); }
+
+        /* Form */
+        .form-view { padding: 60px 0; }
+        .form-card {
+            background: var(--surface);
+            border: 1px solid var(--border);
+            border-radius: var(--radius);
+            padding: 40px;
+            max-width: 560px;
+            margin: 0 auto;
+            box-shadow: var(--shadow);
+        }
+        .form-card h2 {
+            font-size: 22px;
+            margin-bottom: 4px;
+        }
+        .form-card .subtitle {
+            color: var(--text-secondary);
+            font-size: 14px;
+            margin-bottom: 28px;
+        }
+        .form-group { margin-bottom: 18px; }
+        .form-group label {
+            display: block;
+            font-size: 13px;
+            font-weight: 600;
+            margin-bottom: 5px;
+            color: var(--text);
+        }
+        .form-group input, .form-group select {
+            width: 100%;
+            padding: 10px 12px;
+            border: 1px solid var(--border);
+            border-radius: 6px;
+            font-size: 14px;
+            color: var(--text);
+            background: var(--bg);
+            transition: border-color 0.15s;
+        }
+        .form-group input:focus, .form-group select:focus {
+            outline: none;
+            border-color: var(--primary);
+            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
+        }
+        .form-row {
+            display: grid;
+            grid-template-columns: 1fr 1fr;
+            gap: 12px;
+        }
+        .btn-primary {
+            width: 100%;
+            padding: 12px;
+            background: var(--primary);
+            color: white;
+            border: none;
+            border-radius: 6px;
+            font-size: 15px;
+            font-weight: 600;
+            cursor: pointer;
+            transition: background 0.15s;
+            margin-top: 8px;
+        }
+        .btn-primary:hover { background: var(--primary-hover); }
+        .btn-primary:disabled {
+            opacity: 0.6;
+            cursor: not-allowed;
+        }
+
+        /* Progress */
+        .progress-view { padding: 80px 0; text-align: center; display: none; }
+        .progress-card {
+            background: var(--surface);
+            border: 1px solid var(--border);
+            border-radius: var(--radius);
+            padding: 48px 40px;
+            max-width: 560px;
+            margin: 0 auto;
+            box-shadow: var(--shadow);
+        }
+        .spinner {
+            width: 40px;
+            height: 40px;
+            border: 3px solid var(--border);
+            border-top-color: var(--primary);
+            border-radius: 50%;
+            animation: spin 0.8s linear infinite;
+            margin: 0 auto 20px;
+        }
+        @keyframes spin { to { transform: rotate(360deg); } }
+        .progress-text {
+            font-size: 15px;
+            font-weight: 600;
+            margin-bottom: 6px;
+        }
+        .progress-detail {
+            font-size: 13px;
+            color: var(--text-secondary);
+            word-break: break-all;
+        }
+        .progress-bar-outer {
+            width: 100%;
+            height: 6px;
+            background: var(--border);
+            border-radius: 3px;
+            margin-top: 20px;
+            overflow: hidden;
+        }
+        .progress-bar-inner {
+            height: 100%;
+            background: var(--primary);
+            border-radius: 3px;
+            transition: width 0.3s;
+            width: 0%;
+        }
+
+        /* Error message */
+        .error-banner {
+            background: var(--error-bg);
+            border: 1px solid var(--spelling);
+            color: var(--spelling);
+            padding: 12px 16px;
+            border-radius: 6px;
+            font-size: 14px;
+            margin-top: 16px;
+            display: none;
+        }
+
+        /* Results Overview */
+        .results-view { padding: 32px 0; display: none; }
+
+        .stats-grid {
+            display: grid;
+            grid-template-columns: repeat(4, 1fr);
+            gap: 12px;
+            margin-bottom: 28px;
+        }
+        .stat-card {
+            background: var(--surface);
+            border: 1px solid var(--border);
+            border-radius: var(--radius);
+            padding: 18px;
+            text-align: center;
+            box-shadow: var(--shadow);
+        }
+        .stat-number {
+            font-size: 28px;
+            font-weight: 700;
+            line-height: 1.2;
+        }
+        .stat-number.spelling { color: var(--spelling); }
+        .stat-number.grammar { color: var(--grammar); }
+        .stat-number.style { color: var(--style); }
+        .stat-label {
+            font-size: 12px;
+            color: var(--text-secondary);
+            text-transform: uppercase;
+            letter-spacing: 0.5px;
+            margin-top: 4px;
+        }
+
+        .results-info {
+            font-size: 13px;
+            color: var(--text-secondary);
+            margin-bottom: 16px;
+        }
+
+        .page-list { display: flex; flex-direction: column; gap: 6px; }
+
+        .page-item {
+            background: var(--surface);
+            border: 1px solid var(--border);
+            border-radius: var(--radius);
+            padding: 14px 18px;
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+            cursor: pointer;
+            transition: border-color 0.15s, box-shadow 0.15s;
+        }
+        .page-item:hover {
+            border-color: var(--primary);
+            box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.08);
+        }
+        .page-item.skipped {
+            opacity: 0.5;
+            cursor: default;
+        }
+        .page-url {
+            font-size: 14px;
+            color: var(--text);
+            word-break: break-all;
+            flex: 1;
+            margin-right: 12px;
+        }
+        .page-badges { display: flex; gap: 6px; flex-shrink: 0; }
+        .badge {
+            display: inline-flex;
+            align-items: center;
+            padding: 3px 8px;
+            border-radius: 12px;
+            font-size: 12px;
+            font-weight: 600;
+        }
+        .badge.spelling { background: var(--spelling-bg); color: var(--spelling); }
+        .badge.grammar { background: var(--grammar-bg); color: var(--grammar); }
+        .badge.style { background: var(--style-bg); color: var(--style); }
+        .badge.success { background: var(--success-bg); color: var(--success); }
+        .badge.error { background: var(--error-bg); color: var(--spelling); }
+
+        /* Detail View */
+        .detail-view { padding: 32px 0; display: none; }
+        .detail-url {
+            font-size: 14px;
+            color: var(--primary);
+            text-decoration: none;
+            word-break: break-all;
+        }
+        .detail-url:hover { text-decoration: underline; }
+
+        .detail-stats {
+            display: flex;
+            gap: 12px;
+            margin: 16px 0 12px;
+        }
+
+        .filter-bar {
+            display: flex;
+            gap: 8px;
+            margin-bottom: 20px;
+            flex-wrap: wrap;
+        }
+        .filter-btn {
+            padding: 6px 14px;
+            border: 2px solid var(--border);
+            border-radius: 20px;
+            background: var(--surface);
+            font-size: 13px;
+            font-weight: 600;
+            cursor: pointer;
+            transition: all 0.15s;
+            color: var(--text-secondary);
+        }
+        .filter-btn:hover { border-color: var(--text-secondary); }
+        .filter-btn.active { color: white; }
+        .filter-btn.active[data-filter="all"] { background: var(--primary); border-color: var(--primary); }
+        .filter-btn.active[data-filter="spelling"] { background: var(--spelling); border-color: var(--spelling); }
+        .filter-btn.active[data-filter="grammar"] { background: var(--grammar); border-color: var(--grammar); }
+        .filter-btn.active[data-filter="style"] { background: var(--style); border-color: var(--style); }
+
+        .section-block {
+            background: var(--surface);
+            border: 1px solid var(--border);
+            border-radius: var(--radius);
+            margin-bottom: 12px;
+            overflow: hidden;
+        }
+        .section-header {
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+            padding: 10px 16px;
+            background: var(--bg);
+            border-bottom: 1px solid var(--border);
+            font-size: 12px;
+            font-weight: 600;
+            text-transform: uppercase;
+            letter-spacing: 0.5px;
+            color: var(--text-secondary);
+        }
+        .section-check {
+            color: var(--success);
+            font-size: 14px;
+        }
+        .section-body {
+            padding: 16px;
+            font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
+            font-size: 14px;
+            line-height: 1.8;
+            white-space: pre-wrap;
+            word-wrap: break-word;
+        }
+
+        /* Error highlights */
+        .error-mark {
+            position: relative;
+            cursor: help;
+            padding: 1px 2px;
+            border-radius: 2px;
+        }
+        .error-mark.spelling {
+            background: var(--spelling-bg);
+            border-bottom: 2px solid var(--spelling);
+            text-decoration-color: var(--spelling);
+        }
+        .error-mark.grammar {
+            background: var(--grammar-bg);
+            border-bottom: 2px solid var(--grammar);
+        }
+        .error-mark.style {
+            background: var(--style-bg);
+            border-bottom: 2px solid var(--style);
+        }
+
+        /* Tooltip */
+        .tooltip {
+            display: none;
+            position: fixed;
+            background: var(--text);
+            color: white;
+            padding: 12px 16px;
+            border-radius: var(--radius);
+            font-size: 13px;
+            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+            max-width: 360px;
+            z-index: 1000;
+            box-shadow: 0 8px 24px rgba(0,0,0,0.2);
+            line-height: 1.5;
+            pointer-events: none;
+        }
+        .tooltip.visible { display: block; }
+        .tooltip-category {
+            font-size: 11px;
+            text-transform: uppercase;
+            letter-spacing: 0.5px;
+            margin-bottom: 4px;
+            opacity: 0.7;
+        }
+        .tooltip-message { margin-bottom: 6px; }
+        .tooltip-suggestion {
+            background: rgba(255,255,255,0.15);
+            padding: 4px 8px;
+            border-radius: 4px;
+            font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
+            display: inline-block;
+            margin-top: 2px;
+        }
+
+        /* Preview View */
+        .preview-view { padding: 32px 0; display: none; }
+        .preview-card {
+            background: var(--surface);
+            border: 1px solid var(--border);
+            border-radius: var(--radius);
+            padding: 28px;
+            max-width: 700px;
+            margin: 0 auto;
+            box-shadow: var(--shadow);
+        }
+        .preview-card h2 { font-size: 18px; margin-bottom: 4px; }
+        .preview-info {
+            font-size: 13px;
+            color: var(--text-secondary);
+            margin-bottom: 16px;
+        }
+        .preview-actions {
+            display: flex;
+            gap: 8px;
+            margin-bottom: 16px;
+            align-items: center;
+        }
+        .preview-actions button {
+            padding: 5px 12px;
+            border: 1px solid var(--border);
+            border-radius: 6px;
+            background: var(--surface);
+            font-size: 12px;
+            cursor: pointer;
+            color: var(--text-secondary);
+        }
+        .preview-actions button:hover { border-color: var(--primary); color: var(--primary); }
+        .preview-count {
+            font-size: 13px;
+            color: var(--text-secondary);
+            margin-left: auto;
+        }
+        .preview-list {
+            max-height: 400px;
+            overflow-y: auto;
+            border: 1px solid var(--border);
+            border-radius: 6px;
+            margin-bottom: 16px;
+        }
+        .preview-item {
+            display: flex;
+            align-items: center;
+            gap: 10px;
+            padding: 8px 12px;
+            border-bottom: 1px solid var(--border);
+            font-size: 13px;
+        }
+        .preview-item:last-child { border-bottom: none; }
+        .preview-item input[type="checkbox"] {
+            width: 16px;
+            height: 16px;
+            flex-shrink: 0;
+            accent-color: var(--primary);
+        }
+        .preview-item label {
+            word-break: break-all;
+            cursor: pointer;
+            flex: 1;
+        }
+        .preview-buttons {
+            display: flex;
+            gap: 10px;
+        }
+        .btn-secondary {
+            padding: 10px 20px;
+            background: var(--surface);
+            color: var(--text);
+            border: 1px solid var(--border);
+            border-radius: 6px;
+            font-size: 14px;
+            font-weight: 600;
+            cursor: pointer;
+        }
+        .btn-secondary:hover { border-color: var(--text-secondary); }
+
+        /* Responsive */
+        @media (max-width: 768px) {
+            .stats-grid { grid-template-columns: repeat(2, 1fr); }
+            .form-row { grid-template-columns: 1fr; }
+            .legend { flex-wrap: wrap; gap: 8px; }
+        }
+    </style>
+</head>
+<body>
+
+<!-- Header -->
+<div class="header">
+    <div class="container header-inner">
+        <h1>LanguageTool Website Checker</h1>
+        <a class="header-back" id="backBtn" onclick="goBack()">&#8592; Zurück zur Übersicht</a>
+        <div class="legend" id="legend">
+            <div class="legend-item"><span class="legend-dot spelling"></span> Rechtschreibung</div>
+            <div class="legend-item"><span class="legend-dot grammar"></span> Grammatik</div>
+            <div class="legend-item"><span class="legend-dot style"></span> Stil</div>
+        </div>
+    </div>
+</div>
+
+<!-- Tooltip -->
+<div class="tooltip" id="tooltip"></div>
+
+<!-- Form View -->
+<div class="form-view" id="formView">
+    <div class="container">
+        <div class="form-card">
+            <h2>Website prüfen</h2>
+            <p class="subtitle">Crawlt alle Seiten einer Website und prüft Texte mit LanguageTool.</p>
+
+            <div class="form-group">
+                <label>Domain</label>
+                <input type="text" id="domain" placeholder="beispiel.de" autocomplete="off">
+            </div>
+
+            <div class="form-group">
+                <label>LanguageTool E-Mail / Username</label>
+                <input type="text" id="username" placeholder="mail@beispiel.de" autocomplete="off">
+            </div>
+
+            <div class="form-group">
+                <label>LanguageTool API Key</label>
+                <input type="password" id="apiKey" placeholder="API Key eingeben" autocomplete="off">
+            </div>
+
+            <div class="form-row">
+                <div class="form-group">
+                    <label>Sprache</label>
+                    <select id="language">
+                        <option value="de-DE">Deutsch (DE)</option>
+                        <option value="de-AT">Deutsch (AT)</option>
+                        <option value="de-CH">Deutsch (CH)</option>
+                        <option value="en-US">English (US)</option>
+                        <option value="en-GB">English (GB)</option>
+                    </select>
+                </div>
+                <div class="form-group">
+                    <label>Max. Seiten</label>
+                    <input type="number" id="maxPages" value="50" min="1" max="500">
+                </div>
+            </div>
+
+            <button class="btn-primary" id="startBtn" onclick="startCheck()">Website prüfen</button>
+            <div class="error-banner" id="formError"></div>
+        </div>
+    </div>
+</div>
+
+<!-- Progress View -->
+<div class="progress-view" id="progressView">
+    <div class="container">
+        <div class="progress-card">
+            <div class="spinner"></div>
+            <div class="progress-text" id="progressText">Starte...</div>
+            <div class="progress-detail" id="progressDetail"></div>
+            <div class="progress-bar-outer">
+                <div class="progress-bar-inner" id="progressBar"></div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Preview View -->
+<div class="preview-view" id="previewView">
+    <div class="container">
+        <div class="preview-card">
+            <h2>Gefundene Seiten</h2>
+            <div class="preview-info" id="previewInfo"></div>
+            <div class="preview-actions">
+                <button onclick="toggleAllUrls(true)">Alle auswählen</button>
+                <button onclick="toggleAllUrls(false)">Keine auswählen</button>
+                <span class="preview-count" id="previewCount"></span>
+            </div>
+            <div class="preview-list" id="previewList"></div>
+            <div class="error-banner" id="previewError"></div>
+            <div class="preview-buttons">
+                <button class="btn-secondary" onclick="showView('form')">Zurück</button>
+                <button class="btn-primary" style="flex:1" id="checkSelectedBtn" onclick="startCheckSelected()">Ausgewählte prüfen</button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Results Overview -->
+<div class="results-view" id="resultsView">
+    <div class="container">
+        <div class="stats-grid" id="statsGrid"></div>
+        <div class="results-info" id="resultsInfo"></div>
+        <div class="page-list" id="pageList"></div>
+    </div>
+</div>
+
+<!-- Detail View -->
+<div class="detail-view" id="detailView">
+    <div class="container">
+        <a class="detail-url" id="detailUrl" target="_blank" rel="noopener"></a>
+        <div class="detail-stats" id="detailStats"></div>
+        <div class="filter-bar" id="filterBar"></div>
+        <div id="detailSections"></div>
+    </div>
+</div>
+
+<script>
+    // State
+    let currentSessionId = null;
+    let currentResults = null;
+    let currentView = 'form'; // form, preview, progress, results, detail
+    let currentDetailIdx = null;
+    let currentFilter = 'all'; // all, spelling, grammar, style
+    let crawledUrls = []; // URLs from crawl preview
+
+    // Views
+    const formView = document.getElementById('formView');
+    const previewView = document.getElementById('previewView');
+    const progressView = document.getElementById('progressView');
+    const resultsView = document.getElementById('resultsView');
+    const detailView = document.getElementById('detailView');
+    const backBtn = document.getElementById('backBtn');
+
+    // --- localStorage cache (NOT the API key) ---
+    function saveFormCache() {
+        const cache = {
+            domain: document.getElementById('domain').value,
+            username: document.getElementById('username').value,
+            language: document.getElementById('language').value,
+            maxPages: document.getElementById('maxPages').value,
+        };
+        localStorage.setItem('wc_form', JSON.stringify(cache));
+    }
+    function loadFormCache() {
+        try {
+            const cache = JSON.parse(localStorage.getItem('wc_form'));
+            if (!cache) return;
+            if (cache.domain) document.getElementById('domain').value = cache.domain;
+            if (cache.username) document.getElementById('username').value = cache.username;
+            if (cache.language) document.getElementById('language').value = cache.language;
+            if (cache.maxPages) document.getElementById('maxPages').value = cache.maxPages;
+        } catch (e) {}
+    }
+    loadFormCache();
+
+    function showView(name) {
+        currentView = name;
+        formView.style.display = name === 'form' ? 'block' : 'none';
+        previewView.style.display = name === 'preview' ? 'block' : 'none';
+        progressView.style.display = name === 'progress' ? 'block' : 'none';
+        resultsView.style.display = name === 'results' ? 'block' : 'none';
+        detailView.style.display = name === 'detail' ? 'block' : 'none';
+        backBtn.style.display = (name === 'detail') ? 'inline' : 'none';
+    }
+
+    function goBack() {
+        if (currentView === 'detail') showView('results');
+    }
+
+    // Step 1: Crawl and show preview
+    async function startCheck() {
+        const domain = document.getElementById('domain').value.trim();
+        const username = document.getElementById('username').value.trim();
+        const apiKey = document.getElementById('apiKey').value.trim();
+        const maxPages = parseInt(document.getElementById('maxPages').value) || 50;
+        const errorEl = document.getElementById('formError');
+
+        errorEl.style.display = 'none';
+
+        if (!domain) { showError('Bitte eine Domain eingeben.'); return; }
+        if (!username || !apiKey) { showError('Bitte LanguageTool Credentials eingeben.'); return; }
+
+        saveFormCache();
+
+        const btn = document.getElementById('startBtn');
+        btn.disabled = true;
+        btn.textContent = 'Crawle Seiten...';
+
+        try {
+            const resp = await fetch('/api/crawl', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ domain, maxPages }),
+            });
+            const data = await resp.json();
+
+            if (data.error) {
+                showError(data.error);
+                btn.disabled = false;
+                btn.textContent = 'Website prüfen';
+                return;
+            }
+
+            crawledUrls = data.urls;
+            renderPreview(data);
+            showView('preview');
+        } catch (e) {
+            showError('Netzwerkfehler: ' + e.message);
+        }
+        btn.disabled = false;
+        btn.textContent = 'Website prüfen';
+    }
+
+    // Preview rendering
+    function renderPreview(data) {
+        const info = `${data.urls.length} Seiten gefunden via ${data.sitemap_used ? 'Sitemap' : 'Link-Crawling'} auf ${data.domain}`;
+        document.getElementById('previewInfo').textContent = info;
+        document.getElementById('previewError').style.display = 'none';
+
+        const listHtml = data.urls.map((url, i) =>
+            `<div class="preview-item">
+                <input type="checkbox" id="url_${i}" checked data-url="${escapeHtml(url)}">
+                <label for="url_${i}">${escapeHtml(url)}</label>
+            </div>`
+        ).join('');
+        document.getElementById('previewList').innerHTML = listHtml;
+        updatePreviewCount();
+
+        // Listen for checkbox changes
+        document.querySelectorAll('#previewList input[type="checkbox"]').forEach(cb => {
+            cb.addEventListener('change', updatePreviewCount);
+        });
+    }
+
+    function updatePreviewCount() {
+        const all = document.querySelectorAll('#previewList input[type="checkbox"]');
+        const checked = document.querySelectorAll('#previewList input[type="checkbox"]:checked');
+        document.getElementById('previewCount').textContent = `${checked.length} / ${all.length} ausgewählt`;
+        document.getElementById('checkSelectedBtn').disabled = checked.length === 0;
+    }
+
+    function toggleAllUrls(state) {
+        document.querySelectorAll('#previewList input[type="checkbox"]').forEach(cb => {
+            cb.checked = state;
+        });
+        updatePreviewCount();
+    }
+
+    // Step 2: Check selected URLs
+    async function startCheckSelected() {
+        const selectedUrls = [];
+        document.querySelectorAll('#previewList input[type="checkbox"]:checked').forEach(cb => {
+            selectedUrls.push(cb.getAttribute('data-url'));
+        });
+
+        if (selectedUrls.length === 0) {
+            document.getElementById('previewError').textContent = 'Bitte mindestens eine Seite auswählen.';
+            document.getElementById('previewError').style.display = 'block';
+            return;
+        }
+
+        const domain = document.getElementById('domain').value.trim();
+        const username = document.getElementById('username').value.trim();
+        const apiKey = document.getElementById('apiKey').value.trim();
+        const language = document.getElementById('language').value;
+
+        const btn = document.getElementById('checkSelectedBtn');
+        btn.disabled = true;
+        btn.textContent = 'Starte Prüfung...';
+
+        try {
+            const resp = await fetch('/api/check', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ domain, username, apiKey, language, urls: selectedUrls }),
+            });
+            const data = await resp.json();
+
+            if (data.error) {
+                document.getElementById('previewError').textContent = data.error;
+                document.getElementById('previewError').style.display = 'block';
+                btn.disabled = false;
+                btn.textContent = 'Ausgewählte prüfen';
+                return;
+            }
+
+            currentSessionId = data.sessionId;
+            showView('progress');
+            pollStatus();
+        } catch (e) {
+            document.getElementById('previewError').textContent = 'Netzwerkfehler: ' + e.message;
+            document.getElementById('previewError').style.display = 'block';
+        }
+        btn.disabled = false;
+        btn.textContent = 'Ausgewählte prüfen';
+    }
+
+    function showError(msg) {
+        const el = document.getElementById('formError');
+        el.textContent = msg;
+        el.style.display = 'block';
+    }
+
+    // Poll status via SSE
+    function pollStatus() {
+        const evtSource = new EventSource('/api/stream/' + currentSessionId);
+
+        evtSource.onmessage = function(event) {
+            const data = JSON.parse(event.data);
+            document.getElementById('progressText').textContent = data.message;
+
+            if (data.progress && data.progress.total > 0) {
+                const pct = Math.round((data.progress.current / data.progress.total) * 100);
+                document.getElementById('progressBar').style.width = pct + '%';
+                document.getElementById('progressDetail').textContent =
+                    `Seite ${data.progress.current} von ${data.progress.total}`;
+            }
+
+            if (data.status === 'done') {
+                evtSource.close();
+                loadResults();
+            } else if (data.status === 'error') {
+                evtSource.close();
+                showView('form');
+                const btn = document.getElementById('startBtn');
+                btn.disabled = false;
+                btn.textContent = 'Website prüfen';
+                showError(data.message);
+            }
+        };
+
+        evtSource.onerror = function() {
+            evtSource.close();
+            // Fallback: poll via REST
+            setTimeout(() => pollViaRest(), 1000);
+        };
+    }
+
+    async function pollViaRest() {
+        try {
+            const resp = await fetch('/api/status/' + currentSessionId);
+            const data = await resp.json();
+
+            document.getElementById('progressText').textContent = data.message;
+
+            if (data.progress && data.progress.total > 0) {
+                const pct = Math.round((data.progress.current / data.progress.total) * 100);
+                document.getElementById('progressBar').style.width = pct + '%';
+                document.getElementById('progressDetail').textContent =
+                    `Seite ${data.progress.current} von ${data.progress.total}`;
+            }
+
+            if (data.status === 'done') {
+                loadResults();
+            } else if (data.status === 'error') {
+                showView('form');
+                const btn = document.getElementById('startBtn');
+                btn.disabled = false;
+                btn.textContent = 'Website prüfen';
+                showError(data.message);
+            } else {
+                setTimeout(() => pollViaRest(), 1000);
+            }
+        } catch (e) {
+            setTimeout(() => pollViaRest(), 2000);
+        }
+    }
+
+    // Load and render results
+    async function loadResults() {
+        try {
+            const resp = await fetch('/api/results/' + currentSessionId);
+            currentResults = await resp.json();
+
+            if (currentResults.error) {
+                showView('form');
+                showError(currentResults.error);
+                return;
+            }
+
+            renderOverview();
+            showView('results');
+        } catch (e) {
+            showView('form');
+            showError('Fehler beim Laden der Ergebnisse.');
+        }
+
+        // Reset form button
+        const btn = document.getElementById('startBtn');
+        btn.disabled = false;
+        btn.textContent = 'Website prüfen';
+    }
+
+    function renderOverview() {
+        const r = currentResults;
+        const totalErrors = r.total_errors.spelling + r.total_errors.grammar + r.total_errors.style;
+
+        // Stats
+        document.getElementById('statsGrid').innerHTML = `
+            <div class="stat-card">
+                <div class="stat-number">${r.pages_checked}</div>
+                <div class="stat-label">Seiten geprüft</div>
+            </div>
+            <div class="stat-card">
+                <div class="stat-number spelling">${r.total_errors.spelling}</div>
+                <div class="stat-label">Rechtschreibung</div>
+            </div>
+            <div class="stat-card">
+                <div class="stat-number grammar">${r.total_errors.grammar}</div>
+                <div class="stat-label">Grammatik</div>
+            </div>
+            <div class="stat-card">
+                <div class="stat-number style">${r.total_errors.style}</div>
+                <div class="stat-label">Stil</div>
+            </div>
+        `;
+
+        // Info line
+        document.getElementById('resultsInfo').textContent =
+            `${r.domain} — ${r.pages_checked} Seiten geprüft, ${totalErrors} Fehler gesamt` +
+            (r.pages_skipped > 0 ? `, ${r.pages_skipped} übersprungen` : '');
+
+        // Page list
+        const listHtml = r.pages.map((page, idx) => {
+            if (page.skipped) {
+                return `<div class="page-item skipped">
+                    <span class="page-url">${escapeHtml(page.url)}</span>
+                    <span class="badge error">${escapeHtml(page.error_message || 'Übersprungen')}</span>
+                </div>`;
+            }
+
+            const badges = [];
+            if (page.error_count.spelling > 0)
+                badges.push(`<span class="badge spelling">${page.error_count.spelling} Rechtschr.</span>`);
+            if (page.error_count.grammar > 0)
+                badges.push(`<span class="badge grammar">${page.error_count.grammar} Grammatik</span>`);
+            if (page.error_count.style > 0)
+                badges.push(`<span class="badge style">${page.error_count.style} Stil</span>`);
+            if (page.total_errors === 0)
+                badges.push(`<span class="badge success">Fehlerfrei</span>`);
+
+            return `<div class="page-item" onclick="showDetail(${idx})">
+                <span class="page-url">${escapeHtml(page.url)}</span>
+                <div class="page-badges">${badges.join('')}</div>
+            </div>`;
+        }).join('');
+
+        document.getElementById('pageList').innerHTML = listHtml;
+    }
+
+    function showDetail(pageIdx) {
+        const page = currentResults.pages[pageIdx];
+        if (!page || page.skipped) return;
+
+        currentDetailIdx = pageIdx;
+        currentFilter = 'all';
+
+        // URL
+        const urlEl = document.getElementById('detailUrl');
+        urlEl.href = page.url;
+        urlEl.textContent = page.url;
+
+        // Stats
+        const statsHtml = [];
+        if (page.error_count.spelling > 0)
+            statsHtml.push(`<span class="badge spelling">${page.error_count.spelling} Rechtschreibung</span>`);
+        if (page.error_count.grammar > 0)
+            statsHtml.push(`<span class="badge grammar">${page.error_count.grammar} Grammatik</span>`);
+        if (page.error_count.style > 0)
+            statsHtml.push(`<span class="badge style">${page.error_count.style} Stil</span>`);
+        if (page.total_errors === 0)
+            statsHtml.push(`<span class="badge success">Alle Abschnitte fehlerfrei</span>`);
+        document.getElementById('detailStats').innerHTML = statsHtml.join('');
+
+        // Filter buttons
+        renderFilterBar(page);
+
+        // Sections
+        renderDetailSections(page, 'all');
+
+        showView('detail');
+        window.scrollTo(0, 0);
+    }
+
+    function renderFilterBar(page) {
+        const bar = document.getElementById('filterBar');
+        const counts = page.error_count;
+        const hasAny = page.total_errors > 0;
+
+        if (!hasAny) {
+            bar.innerHTML = '';
+            return;
+        }
+
+        let html = `<button class="filter-btn active" data-filter="all" onclick="setFilter('all')">Alle Fehler</button>`;
+        if (counts.spelling > 0)
+            html += `<button class="filter-btn" data-filter="spelling" onclick="setFilter('spelling')">Rechtschreibung (${counts.spelling})</button>`;
+        if (counts.grammar > 0)
+            html += `<button class="filter-btn" data-filter="grammar" onclick="setFilter('grammar')">Grammatik (${counts.grammar})</button>`;
+        if (counts.style > 0)
+            html += `<button class="filter-btn" data-filter="style" onclick="setFilter('style')">Stil (${counts.style})</button>`;
+
+        bar.innerHTML = html;
+    }
+
+    function setFilter(filter) {
+        currentFilter = filter;
+        const page = currentResults.pages[currentDetailIdx];
+
+        // Update active button
+        document.querySelectorAll('.filter-btn').forEach(btn => {
+            btn.classList.toggle('active', btn.getAttribute('data-filter') === filter);
+        });
+
+        renderDetailSections(page, filter);
+    }
+
+    function renderDetailSections(page, filter) {
+        const sectionsHtml = [];
+
+        for (const section of page.sections) {
+            const allMatches = section.matches || [];
+
+            // Filter matches by category
+            const filteredMatches = filter === 'all'
+                ? allMatches
+                : allMatches.filter(m => m.category === filter);
+
+            // If filtering by type, skip sections that have no matches of that type
+            if (filter !== 'all' && filteredMatches.length === 0) continue;
+
+            const hasErrors = filteredMatches.length > 0;
+            const checkMark = !hasErrors ? '<span class="section-check">&#10003;</span>' : '';
+            const errorCount = hasErrors
+                ? `<span style="font-size:11px;color:var(--spelling)">${filteredMatches.length} Fehler</span>`
+                : '';
+
+            let bodyHtml;
+            if (hasErrors) {
+                bodyHtml = renderHighlightedText(section.text, filteredMatches);
+            } else {
+                bodyHtml = escapeHtml(section.text);
+            }
+
+            sectionsHtml.push(`<div class="section-block">
+                <div class="section-header">
+                    <span>${escapeHtml(section.type)}</span>
+                    <span>${errorCount}${checkMark}</span>
+                </div>
+                <div class="section-body">${bodyHtml}</div>
+            </div>`);
+        }
+
+        document.getElementById('detailSections').innerHTML = sectionsHtml.join('');
+    }
+
+    function renderHighlightedText(text, matches) {
+        if (!matches || matches.length === 0) return escapeHtml(text);
+
+        // Sort matches by offset
+        const sorted = [...matches].sort((a, b) => a.offset - b.offset);
+
+        let result = '';
+        let lastIdx = 0;
+
+        for (const match of sorted) {
+            const start = match.offset;
+            const end = start + match.length;
+
+            // Skip overlapping matches
+            if (start < lastIdx) continue;
+
+            // Text before match
+            result += escapeHtml(text.slice(lastIdx, start));
+
+            // Matched text
+            const matchedText = text.slice(start, end);
+            const categoryLabel = {
+                spelling: 'Rechtschreibung',
+                grammar: 'Grammatik',
+                style: 'Stil',
+            }[match.category] || match.category;
+
+            const suggestions = match.replacements && match.replacements.length > 0
+                ? match.replacements.join(', ') : '';
+
+            const tooltipData = JSON.stringify({
+                category: categoryLabel,
+                message: match.message,
+                suggestions: suggestions,
+            }).replace(/"/g, '&quot;');
+
+            result += `<span class="error-mark ${match.category}" data-tooltip="${tooltipData}" onmouseenter="showTooltip(event, this)" onmouseleave="hideTooltip()">${escapeHtml(matchedText)}</span>`;
+
+            lastIdx = end;
+        }
+
+        // Remaining text
+        result += escapeHtml(text.slice(lastIdx));
+        return result;
+    }
+
+    // Tooltip
+    const tooltipEl = document.getElementById('tooltip');
+
+    function showTooltip(event, el) {
+        const data = JSON.parse(el.getAttribute('data-tooltip').replace(/&quot;/g, '"'));
+
+        let html = `<div class="tooltip-category">${escapeHtml(data.category)}</div>`;
+        html += `<div class="tooltip-message">${escapeHtml(data.message)}</div>`;
+        if (data.suggestions) {
+            html += `<div class="tooltip-suggestion">${escapeHtml(data.suggestions)}</div>`;
+        }
+
+        tooltipEl.innerHTML = html;
+        tooltipEl.classList.add('visible');
+
+        // Position
+        const rect = el.getBoundingClientRect();
+        let left = rect.left;
+        let top = rect.bottom + 8;
+
+        // Keep in viewport
+        const tipRect = tooltipEl.getBoundingClientRect();
+        if (left + 360 > window.innerWidth) left = window.innerWidth - 370;
+        if (left < 10) left = 10;
+        if (top + tipRect.height > window.innerHeight) top = rect.top - tipRect.height - 8;
+
+        tooltipEl.style.left = left + 'px';
+        tooltipEl.style.top = top + 'px';
+    }
+
+    function hideTooltip() {
+        tooltipEl.classList.remove('visible');
+    }
+
+    function escapeHtml(str) {
+        if (!str) return '';
+        return str.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;')
+                  .replace(/"/g, '&quot;').replace(/'/g, '&#039;');
+    }
+
+    // Enter key on form
+    document.querySelectorAll('#formView input').forEach(el => {
+        el.addEventListener('keydown', e => {
+            if (e.key === 'Enter') startCheck();
+        });
+    });
+</script>
+
+</body>
+</html>