diff --git a/src/static/css/style.css b/src/static/css/style.css
index ee8167b..d8c12d4 100644
--- a/src/static/css/style.css
+++ b/src/static/css/style.css
@@ -2450,39 +2450,33 @@ a.dev-source-pill:hover {
     padding: 12px 20px 8px;
 }
 
-/* === Snapshot-zentrierte Timeline === */
+/* === Timeline: Heatmap-Strip oben + vertikaler Newsfeed-Stream darunter === */
 .ht-tl {
     display: flex;
     flex-direction: column;
-    gap: var(--sp-xl);
+    gap: var(--sp-md);
 }
 
-.ht-tl-hint {
-    font-size: 12px;
-    color: var(--text-tertiary);
-    font-style: italic;
-    padding: 4px 0;
-}
-
-/* Quanti-Strip (Heatmap-Zeile) */
+/* Heatmap-Strip */
 .ht-strip {
     display: flex;
     flex-direction: column;
     gap: 4px;
+    padding: 4px 0 6px;
 }
 .ht-strip-cells {
     display: grid;
     grid-auto-flow: column;
     grid-auto-columns: minmax(8px, 1fr);
     gap: 2px;
-    height: 18px;
+    height: 14px;
 }
 .ht-strip-cell {
     background: color-mix(in srgb, var(--accent) calc(var(--intensity) * 70%), var(--border));
     border-radius: 2px;
     cursor: pointer;
     transition: transform 0.15s ease, box-shadow 0.15s ease;
-    min-height: 16px;
+    min-height: 12px;
 }
 .ht-strip-cell.empty {
     background: var(--border);
@@ -2490,11 +2484,11 @@ a.dev-source-pill:hover {
     cursor: default;
 }
 .ht-strip-cell:hover:not(.empty) {
-    transform: scaleY(1.4);
+    transform: scaleY(1.6);
     box-shadow: var(--glow-accent);
 }
 .ht-strip-cell.has-snapshot {
-    box-shadow: inset 0 -2px 0 var(--accent);
+    box-shadow: inset 0 -3px 0 var(--accent);
 }
 .ht-strip-labels {
     display: grid;
@@ -2508,156 +2502,9 @@ a.dev-source-pill:hover {
     white-space: nowrap;
 }
 
-/* Lagebericht-Kette */
-.ht-chain-scroll {
-    overflow-x: auto;
-    overflow-y: visible;
-    padding: 4px 0 8px;
-}
-.ht-chain {
-    display: flex;
-    align-items: stretch;
-    gap: 0;
-    min-width: max-content;
-}
-
-/* Lagebericht-Karte */
-.ht-card {
-    flex: 0 0 220px;
-    padding: 12px;
-    border: 1px solid var(--border);
-    border-radius: var(--radius-lg);
-    background: var(--bg-elevated);
-    cursor: pointer;
-    display: flex;
-    flex-direction: column;
-    gap: 4px;
-    transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
-    outline: none;
-    position: relative;
-}
-.ht-card::before {
-    content: '';
-    position: absolute;
-    top: 0;
-    left: 0;
-    right: 0;
-    height: 3px;
-    background: var(--accent);
-    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
-}
-.ht-card:hover {
-    border-color: var(--accent);
-    transform: translateY(-1px);
-    box-shadow: var(--shadow-sm);
-}
-.ht-card:focus-visible { box-shadow: 0 0 0 3px var(--tint-accent-strong); }
-.ht-card.active {
-    border-color: var(--accent);
-    box-shadow: var(--glow-accent-strong);
-}
-.ht-card-icon {
-    color: var(--accent);
-    margin-bottom: 2px;
-}
-.ht-card-date {
-    font-size: 11px;
-    font-family: var(--font-mono);
-    font-weight: 600;
-    color: var(--accent);
-}
-.ht-card-preview {
-    font-size: 13px;
-    color: var(--text-primary);
-    line-height: 1.4;
-    overflow: hidden;
-    display: -webkit-box;
-    -webkit-line-clamp: 3;
-    -webkit-box-orient: vertical;
-    flex: 1;
-}
-.ht-card-meta {
-    font-size: 10px;
-    color: var(--text-tertiary);
-    font-family: var(--font-mono);
-    margin-top: 4px;
-}
-
-/* Verbindungs-Strang zwischen Karten */
-.ht-link {
-    flex: 0 1 auto;
-    min-width: 80px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    gap: 6px;
-    padding: 0 8px;
-    cursor: pointer;
-    outline: none;
-    color: var(--text-secondary);
-    transition: color 0.15s ease;
-}
-.ht-link:hover { color: var(--accent); }
-.ht-link:focus-visible { color: var(--accent); }
-.ht-link-line {
-    flex: 1;
-    height: 2px;
-    background: var(--border);
-    border-radius: 1px;
-    min-width: 12px;
-    transition: background 0.15s ease;
-}
-.ht-link:hover .ht-link-line { background: var(--accent); }
-.ht-link-count {
-    font-size: 11px;
-    font-family: var(--font-mono);
-    font-weight: 600;
-    white-space: nowrap;
-    background: var(--bg-card);
-    padding: 2px 8px;
-    border-radius: 10px;
-    border: 1px solid var(--border);
-    transition: border-color 0.15s ease;
-}
-.ht-link:hover .ht-link-count { border-color: var(--accent); color: var(--accent); }
-.ht-link--quiet .ht-link-line { background: var(--border); opacity: 0.5; }
-
-/* "Aktuell"-Marker am Ende */
-.ht-now {
-    flex: 0 0 auto;
-    display: flex;
-    flex-direction: column;
-    justify-content: center;
-    align-items: center;
-    gap: 6px;
-    padding: 0 12px;
-    min-width: 80px;
-}
-.ht-now-pulse {
-    width: 12px;
-    height: 12px;
-    border-radius: 50%;
-    background: var(--accent);
-    box-shadow: 0 0 0 0 var(--accent);
-    animation: ht-pulse 2s ease-out infinite;
-}
-@keyframes ht-pulse {
-    0%   { box-shadow: 0 0 0 0 rgba(150, 121, 26, 0.4); }
-    70%  { box-shadow: 0 0 0 12px rgba(150, 121, 26, 0); }
-    100% { box-shadow: 0 0 0 0 rgba(150, 121, 26, 0); }
-}
-.ht-now-label {
-    font-size: 10px;
-    font-family: var(--font-mono);
-    font-weight: 700;
-    color: var(--accent);
-    text-transform: uppercase;
-    letter-spacing: 0.5px;
-}
-
-/* Stream / Empty */
+/* Stream-Container */
 .ht-stream {
-    margin-top: 8px;
+    margin-top: var(--sp-md);
 }
 .ht-empty {
     padding: 20px;
@@ -2666,79 +2513,17 @@ a.dev-source-pill:hover {
     color: var(--text-tertiary);
 }
 
-/* Detail-Panel (Zeitfenster oder Snapshot) */
-.ht-detail {
-    margin-top: 4px;
-    border: 1px solid var(--border);
-    border-radius: var(--radius);
-    background: var(--bg-secondary);
-    animation: ht-slide-down 0.2s ease;
+/* Time-Group Flash beim Scrollen vom Strip */
+.vt-time-group--flash {
+    animation: vt-group-flash 1.2s ease-out;
 }
-@keyframes ht-slide-down {
-    from { opacity: 0; transform: translateY(-8px); }
-    to   { opacity: 1; transform: translateY(0); }
-}
-.ht-detail-header {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-    padding: 8px 12px;
-    border-bottom: 1px solid var(--border);
-}
-.ht-detail-title {
-    font-size: 12px;
-    font-weight: 600;
-    color: var(--accent);
-    font-family: var(--font-mono);
-}
-.ht-detail-close {
-    background: none;
-    border: none;
-    color: var(--text-disabled);
-    font-size: 18px;
-    cursor: pointer;
-    padding: 0 4px;
-    line-height: 1;
-}
-.ht-detail-close:hover { color: var(--text-primary); }
-.ht-detail-body {
-    max-height: 480px;
-    overflow-y: auto;
-    padding: 8px 14px;
-}
-.ht-detail-body::-webkit-scrollbar { width: 6px; }
-.ht-detail-body::-webkit-scrollbar-track { background: var(--bg-primary); border-radius: 3px; }
-.ht-detail-body::-webkit-scrollbar-thumb { background: var(--text-disabled); border-radius: 3px; }
-.ht-detail-body::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }
-
-/* Mobile: Kette vertikal stapeln, Strip bleibt horizontal */
-@media (max-width: 900px) {
-    .ht-chain {
-        flex-direction: column;
-        align-items: stretch;
-        min-width: auto;
-    }
-    .ht-card { flex: 0 0 auto; width: 100%; }
-    .ht-link {
-        min-width: auto;
-        width: 100%;
-        flex-direction: column;
-        gap: 4px;
-        padding: 8px 0;
-    }
-    .ht-link-line {
-        width: 2px;
-        height: 14px;
-        flex: 0 0 auto;
-    }
-    .ht-now { width: 100%; }
+@keyframes vt-group-flash {
+    0%   { background: var(--tint-accent-strong); }
+    100% { background: transparent; }
 }
 
-/* Reduced Motion */
 @media (prefers-reduced-motion: reduce) {
-    .ht-now-pulse { animation: none; }
-    .ht-detail { animation: none; }
-    .ht-card { transition: none; }
+    .vt-time-group--flash { animation: none; }
 }
 
 /* === Briefing Listen === */
diff --git a/src/static/dashboard.html b/src/static/dashboard.html
index 05004db..b00d2a7 100644
--- a/src/static/dashboard.html
+++ b/src/static/dashboard.html
@@ -13,7 +13,7 @@
     <link rel="stylesheet" href="/static/vendor/leaflet.css">
     <link rel="stylesheet" href="/static/vendor/MarkerCluster.css">
     <link rel="stylesheet" href="/static/vendor/MarkerCluster.Default.css">
-    <link rel="stylesheet" href="/static/css/style.css?v=20260501b">
+    <link rel="stylesheet" href="/static/css/style.css?v=20260501c">
 <style>
 /* Export Modal Radio */
 .export-radio { display:flex; align-items:center; gap:10px; padding:8px 12px; cursor:pointer; border-radius:var(--radius-sm); transition:background 0.15s; border:1px solid transparent; margin-bottom:4px; }
@@ -647,7 +647,7 @@
     <script src="/static/js/components.js?v=20260427a"></script>
     <script src="/static/js/layout.js?v=20260316b"></script>
     <script src="/static/js/pipeline.js?v=20260501a"></script>
-    <script src="/static/js/app.js?v=20260501b"></script>
+    <script src="/static/js/app.js?v=20260501c"></script>
     <script src="/static/js/cluster-data.js?v=20260322f"></script>
     <script src="/static/js/tutorial.js?v=20260316z"></script>
     <script src="/static/js/chat.js?v=20260422a"></script>
diff --git a/src/static/js/app.js b/src/static/js/app.js
index 9560dbe..01ad7d5 100644
--- a/src/static/js/app.js
+++ b/src/static/js/app.js
@@ -1114,11 +1114,9 @@ const App = {
         this._timelineSearchTimer = setTimeout(() => this.rerenderTimeline(), 250);
     },
 
-    /** Snapshot-zentrierte Timeline:
-     *  - Quanti-Strip oben (Heatmap-Reihe ueber Tage/Stunden)
-     *  - Lagebericht-Karten als horizontale Stationen
-     *  - Verbindungs-Straenge mit "X Meldungen" zwischen den Karten
-     *  - Detail-Panel unten je nach Klick (Snapshot oder Zeitfenster-Liste)
+    /** Heatmap-Strip oben + vertikaler Newsfeed-Stream darunter.
+     *  Lageberichte sind als prominente Sektionen im Stream.
+     *  Klick auf Heatmap-Quadrat scrollt im Stream zur passenden Zeit-Gruppe.
      */
     rerenderTimeline() {
         const container = document.getElementById('timeline');
@@ -1127,59 +1125,65 @@ const App = {
         const filterType = this._timelineFilter;
         const range = this._timelineRange;
 
-        // Filter-spezifische Eintraege fuer die Hauptansicht
-        let entries = this._collectEntries(filterType, searchTerm, range);
+        const entries = this._collectEntries(filterType, searchTerm, range);
         this._updateTimelineCount(entries);
 
         if (entries.length === 0) {
-            this._activeTimelineDetail = null;
             container.innerHTML = (searchTerm || range !== 'all')
                 ? '<div class="ht-empty">Keine Einträge im gewählten Zeitraum.</div>'
                 : '<div class="ht-empty">Noch keine Meldungen. Starte eine Recherche mit "Aktualisieren".</div>';
             return;
         }
 
-        entries.sort((a, b) => new Date(a.timestamp || 0) - new Date(b.timestamp || 0));
-
-        // Quanti-Strip nutzt IMMER alle Eintraege im aktuellen Range (unabh. vom Filter),
-        // damit Klick auf ein Quadrat die echte Aktivitaet zeigt.
+        // Heatmap nutzt IMMER alle Eintraege (Filter-unabhaengig), damit der Strip
+        // die volle Aktivitaet zeigt und auch im "Lageberichte"-Filter scrollbar bleibt.
         const stripEntries = this._collectEntries('all', '', range);
         stripEntries.sort((a, b) => new Date(a.timestamp || 0) - new Date(b.timestamp || 0));
 
-        const articles = entries.filter(e => e.kind === 'article');
-        const snapshots = entries.filter(e => e.kind === 'snapshot');
-
         let html = '<div class="ht-tl">';
-
-        // 1) Quanti-Strip (entfaellt nur bei "Lageberichte"-Filter)
-        if (filterType !== 'snapshots' && stripEntries.length > 0) {
+        if (stripEntries.length > 0) {
             html += this._renderTimelineStrip(stripEntries);
         }
-
-        // 2) Hauptansicht je nach Filter
-        if (filterType === 'snapshots') {
-            html += this._renderSnapshotsOnly(snapshots);
-        } else if (filterType === 'articles') {
-            html += this._renderTimelineStream(articles);
-        } else {
-            // 'all'
-            if (snapshots.length === 0) {
-                html += '<div class="ht-tl-hint">Noch kein Lagebericht. Aktiviere einen Refresh, um den ersten zu erstellen.</div>';
-                html += this._renderTimelineStream(articles);
-            } else {
-                html += this._renderTimelineChain(snapshots, articles);
-            }
-        }
-
-        // 3) Detail-Panel falls aktiv
-        if (this._activeTimelineDetail) {
-            html += this._renderTimelineDetail(this._activeTimelineDetail);
-        }
-
+        // Vertikaler Newsfeed
+        html += '<div class="ht-stream">';
+        html += this._renderVerticalStream(entries);
+        html += '</div>';
         html += '</div>';
         container.innerHTML = html;
     },
 
+    /** Granularitaets-Heuristik fuer den Newsfeed: Stunden bei kurzen Spannen, sonst Tage. */
+    _calcGranularity(entries) {
+        if (!entries || entries.length < 2) return 'day';
+        const ts = entries.map(e => new Date(e.timestamp || 0).getTime()).filter(t => t > 0);
+        if (ts.length < 2) return 'day';
+        const span = Math.max(...ts) - Math.min(...ts);
+        if (span <= 48 * 60 * 60 * 1000) return 'hour';
+        return 'day';
+    },
+
+    /** Vertikaler Stream: Datums-Trennzeilen + Lagebericht-Sektionen + Meldungen. */
+    _renderVerticalStream(entries) {
+        if (!entries || entries.length === 0) {
+            return '<div class="ht-empty">Keine Einträge.</div>';
+        }
+        // Neueste oben
+        const sorted = [...entries].sort((a, b) => new Date(b.timestamp || 0) - new Date(a.timestamp || 0));
+        const granularity = this._calcGranularity(sorted);
+        const groups = this._groupByTimePeriod(sorted, granularity);
+
+        let html = '<div class="vt-timeline">';
+        groups.forEach(g => {
+            const groupId = 'vt-grp-' + g.key.replace(/[^a-z0-9]/gi, '-');
+            html += `<div class="vt-time-group" id="${groupId}" data-time-key="${UI.escape(g.key)}">`;
+            html += `<div class="vt-time-label"><span class="vt-time-label-text">${UI.escape(g.label)}</span></div>`;
+            html += this._renderTimeGroupEntries(g.entries, this._currentIncidentType);
+            html += `</div>`;
+        });
+        html += '</div>';
+        return html;
+    },
+
     /* ======= Quanti-Strip ======= */
     _stripGranularity(stripEntries) {
         if (stripEntries.length < 2) return 'day';
@@ -1310,187 +1314,8 @@ const App = {
         return html;
     },
 
-    /* ======= Lagebericht-Kette (Snapshots als Stationen) ======= */
-    _renderTimelineChain(snapshots, articles) {
-        // Aelteste links, neueste rechts
-        snapshots.sort((a, b) => new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime());
-        articles.sort((a, b) => new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime());
-
-        let html = '<div class="ht-chain-scroll"><div class="ht-chain">';
-
-        const firstSnapTs = new Date(snapshots[0].timestamp).getTime();
-        const lastSnapTs = new Date(snapshots[snapshots.length - 1].timestamp).getTime();
-
-        // Vor-Strang (Meldungen vor erstem Lagebericht)
-        const before = articles.filter(a => new Date(a.timestamp).getTime() < firstSnapTs);
-        if (before.length > 0) {
-            const earliestArt = new Date(before[0].timestamp).getTime();
-            html += this._renderChainLink(earliestArt, firstSnapTs, before.length, 'Vor dem ersten Lagebericht');
-        }
-
-        // Lagebericht-Karten + Straenge dazwischen
-        snapshots.forEach((snap, i) => {
-            html += this._renderChainCard(snap);
-            if (i < snapshots.length - 1) {
-                const ts1 = new Date(snap.timestamp).getTime();
-                const ts2 = new Date(snapshots[i + 1].timestamp).getTime();
-                const between = articles.filter(a => {
-                    const t = new Date(a.timestamp).getTime();
-                    return t >= ts1 && t < ts2;
-                });
-                html += this._renderChainLink(ts1, ts2, between.length, 'Zwischen den Lageberichten');
-            }
-        });
-
-        // Nach-Strang + "Aktuell"-Marker
-        const after = articles.filter(a => new Date(a.timestamp).getTime() > lastSnapTs);
-        const nowMs = Date.now();
-        if (after.length > 0) {
-            html += this._renderChainLink(lastSnapTs, nowMs, after.length, 'Seit dem letzten Lagebericht');
-        }
-        html += this._renderChainNow();
-
-        html += '</div></div>';
-        return html;
-    },
-
-    _renderChainCard(snap) {
-        const data = snap.data || {};
-        const dateStr = new Date(snap.timestamp).toLocaleString('de-DE', {
-            day: '2-digit', month: 'short', hour: '2-digit', minute: '2-digit', timeZone: TIMEZONE,
-        });
-        let preview = (data.summary_preview || '').replace(/\s+/g, ' ').trim();
-        if (preview.length > 140) preview = preview.slice(0, 138) + '…';
-        const isActive = this._activeTimelineDetail && this._activeTimelineDetail.type === 'snapshot' && this._activeTimelineDetail.id === data.id;
-        return `<div class="ht-card ${isActive ? 'active' : ''}" tabindex="0" onclick="App.openSnapshotInline(${data.id})" onkeydown="if(event.key==='Enter'||event.key===' '){event.preventDefault();App.openSnapshotInline(${data.id});}">
-            <div class="ht-card-icon" aria-hidden="true">
-                <svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M14 3H6a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V9z"/><path d="M14 3v6h6"/><path d="M8 13h8M8 17h6"/></svg>
-            </div>
-            <div class="ht-card-date">${UI.escape(dateStr)}</div>
-            <div class="ht-card-preview">${UI.escape(preview || 'Lagebericht')}</div>
-            <div class="ht-card-meta">${data.article_count || 0} Meldungen · ${data.fact_check_count || 0} Fakten</div>
-        </div>`;
-    },
-
-    _renderChainLink(startMs, endMs, count, label) {
-        const text = count === 0 ? 'keine Meldungen' : `${count} Meldung${count === 1 ? '' : 'en'}`;
-        const labelArg = JSON.stringify(label);
-        return `<div class="ht-link" tabindex="0" onclick="App.openTimelineWindow(${startMs}, ${endMs}, ${UI.escape(labelArg)})" onkeydown="if(event.key==='Enter'||event.key===' '){event.preventDefault();App.openTimelineWindow(${startMs}, ${endMs}, ${UI.escape(labelArg)});}">
-            <div class="ht-link-line"></div>
-            <div class="ht-link-count">${UI.escape(text)}</div>
-            <div class="ht-link-line"></div>
-        </div>`;
-    },
-
-    _renderChainNow() {
-        return `<div class="ht-now" aria-label="Aktueller Stand">
-            <div class="ht-now-pulse"></div>
-            <div class="ht-now-label">aktuell</div>
-        </div>`;
-    },
-
-    /* ======= Stream (Fallback / Filter "Meldungen") ======= */
-    _renderTimelineStream(articles) {
-        if (articles.length === 0) {
-            return '<div class="ht-empty">Keine Meldungen im gewählten Zeitraum.</div>';
-        }
-        // Reuse: existierender vertikaler Verlauf
-        return '<div class="ht-stream">' + this._buildFullVerticalTimeline('articles', '') + '</div>';
-    },
-
-    _renderSnapshotsOnly(snapshots) {
-        if (snapshots.length === 0) {
-            return '<div class="ht-empty">Noch keine Lageberichte vorhanden.</div>';
-        }
-        snapshots.sort((a, b) => new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime());
-        let html = '<div class="ht-chain-scroll"><div class="ht-chain ht-chain--snapshots-only">';
-        snapshots.forEach((snap, i) => {
-            html += this._renderChainCard(snap);
-            if (i < snapshots.length - 1) {
-                html += '<div class="ht-link ht-link--quiet"><div class="ht-link-line"></div></div>';
-            }
-        });
-        html += this._renderChainNow();
-        html += '</div></div>';
-        return html;
-    },
-
-    /* ======= Detail-Panel ======= */
-    _renderTimelineDetail(detail) {
-        if (detail.type === 'snapshot') {
-            return this._renderSnapshotDetailPanel(detail.id);
-        }
-        return this._renderWindowDetailPanel(detail);
-    },
-
-    _renderSnapshotDetailPanel(snapshotId) {
-        const cached = this._snapshotFullCache && this._snapshotFullCache.get(snapshotId);
-        const meta = (this._currentSnapshots || []).find(s => s.id === snapshotId);
-        if (!meta) return '';
-        const dateStr = new Date(meta.created_at).toLocaleString('de-DE', {
-            day: '2-digit', month: 'short', year: 'numeric', hour: '2-digit', minute: '2-digit', timeZone: TIMEZONE,
-        });
-        const title = `Lagebericht vom ${dateStr}`;
-        let body;
-        if (cached && cached.summary) {
-            const safeSummary = (typeof window.marked !== 'undefined' && marked.parse)
-                ? marked.parse(cached.summary)
-                : '<pre>' + UI.escape(cached.summary) + '</pre>';
-            body = `<div class="ht-detail-body summary-text">${safeSummary}</div>`;
-        } else {
-            body = '<div class="ht-detail-body"><em>Lade Lagebericht...</em></div>';
-            // Lazy-Load anstossen
-            if (this._currentIncidentId && API.getSnapshot) {
-                API.getSnapshot(this._currentIncidentId, snapshotId).then(full => {
-                    if (!this._snapshotFullCache) this._snapshotFullCache = new Map();
-                    this._snapshotFullCache.set(snapshotId, full);
-                    if (this._activeTimelineDetail && this._activeTimelineDetail.type === 'snapshot' && this._activeTimelineDetail.id === snapshotId) {
-                        this.rerenderTimeline();
-                    }
-                }).catch(err => console.warn('snapshot-detail:', err));
-            }
-        }
-        return `<div class="ht-detail">
-            <div class="ht-detail-header">
-                <span class="ht-detail-title">${UI.escape(title)}</span>
-                <button class="ht-detail-close" onclick="App.closeTimelineDetail()" aria-label="Schließen">&times;</button>
-            </div>
-            ${body}
-        </div>`;
-    },
-
-    _renderWindowDetailPanel(detail) {
-        const start = detail.start;
-        const end = detail.end;
-        const label = detail.label || 'Zeitfenster';
-        const type = this._currentIncidentType;
-        const list = (this._currentArticles || []).filter(a => {
-            const ts = new Date((type === 'research' && a.published_at) ? a.published_at : a.collected_at).getTime();
-            return ts >= start && ts < end;
-        }).sort((a, b) => {
-            const ta = new Date((type === 'research' && a.published_at) ? a.published_at : a.collected_at).getTime();
-            const tb = new Date((type === 'research' && b.published_at) ? b.published_at : b.collected_at).getTime();
-            return tb - ta;
-        });
-        let body;
-        if (list.length === 0) {
-            body = '<div class="ht-empty">Keine Meldungen in diesem Zeitfenster.</div>';
-        } else {
-            body = list.map(a => this._renderArticleEntry(a, type, 0)).join('');
-        }
-        const titleText = `${label} · ${list.length} Meldung${list.length === 1 ? '' : 'en'}`;
-        return `<div class="ht-detail">
-            <div class="ht-detail-header">
-                <span class="ht-detail-title">${UI.escape(titleText)}</span>
-                <button class="ht-detail-close" onclick="App.closeTimelineDetail()" aria-label="Schließen">&times;</button>
-            </div>
-            <div class="ht-detail-body">${body}</div>
-        </div>`;
-    },
-
     setTimelineFilter(filter) {
         this._timelineFilter = filter;
-        this._activeTimelineDetail = null;
         document.querySelectorAll('.ht-filter-btn').forEach(btn => {
             const isActive = btn.dataset.filter === filter;
             btn.classList.toggle('active', isActive);
@@ -1501,7 +1326,6 @@ const App = {
 
     setTimelineRange(range) {
         this._timelineRange = range;
-        this._activeTimelineDetail = null;
         document.querySelectorAll('.ht-range-btn').forEach(btn => {
             const isActive = btn.dataset.range === range;
             btn.classList.toggle('active', isActive);
@@ -1510,23 +1334,42 @@ const App = {
         this.rerenderTimeline();
     },
 
-    openSnapshotInline(snapshotId) {
-        const same = this._activeTimelineDetail && this._activeTimelineDetail.type === 'snapshot' && this._activeTimelineDetail.id === snapshotId;
-        this._activeTimelineDetail = same ? null : { type: 'snapshot', id: snapshotId };
-        this.rerenderTimeline();
-        this._resizeTimelineTile();
-    },
-
+    /** Klick auf Heatmap-Quadrat: Filter im Stream auf das Zeitfenster scrollen. */
     openTimelineWindow(startMs, endMs, label) {
-        this._activeTimelineDetail = { type: 'window', start: startMs, end: endMs, label: label || 'Zeitfenster' };
-        this.rerenderTimeline();
-        this._resizeTimelineTile();
-    },
-
-    closeTimelineDetail() {
-        this._activeTimelineDetail = null;
-        this.rerenderTimeline();
-        this._resizeTimelineTile();
+        // Im Stream die naechste vt-time-group finden, deren Eintraege ins Fenster fallen
+        const groups = document.querySelectorAll('#timeline .vt-time-group');
+        let target = null;
+        for (const g of groups) {
+            const firstTimeEl = g.querySelector('.vt-article-time, .vt-snapshot-time');
+            // Pragmatisch: nimm die erste Group, die Eintraege mit Timestamp >= startMs hat.
+            // Die Stream-Daten sind absteigend sortiert; wir finden die erste passende.
+            const matches = Array.from(g.querySelectorAll('.vt-entry')).some(entry => {
+                // Wir haben keine direkten Timestamps im DOM — nehmen den Group-Index
+                return true;
+            });
+            if (matches) {
+                // Statt komplizierter Ts-Suche: scrolle zur Gruppe, deren Label das Datum enthaelt
+                target = g;
+                break;
+            }
+        }
+        // Bessere Heuristik: die vt-time-group, deren erstes Datums-Element ins Fenster faellt
+        const dateAtStart = new Date(startMs);
+        const tzs = _tz(dateAtStart);
+        const wantKey = `${tzs.year}-${tzs.month}-${tzs.date}`;
+        const wantHour = tzs.hours;
+        for (const g of groups) {
+            const k = g.dataset.timeKey || '';
+            if (k.startsWith(wantKey) && (k === wantKey || k.endsWith('-' + wantHour))) {
+                target = g;
+                break;
+            }
+        }
+        if (target) {
+            target.scrollIntoView({ behavior: document.documentElement.dataset.a11yMotion ? 'instant' : 'smooth', block: 'start' });
+            target.classList.add('vt-time-group--flash');
+            setTimeout(() => target.classList.remove('vt-time-group--flash'), 1200);
+        }
     },
 
     _resizeTimelineTile() {