diff --git a/src/static/css/style.css b/src/static/css/style.css
index d944697..ee8167b 100644
--- a/src/static/css/style.css
+++ b/src/static/css/style.css
@@ -2450,213 +2450,215 @@ a.dev-source-pill:hover {
     padding: 12px 20px 8px;
 }
 
-/* Achsen-Container */
-.ht-axis {
-    position: relative;
-    height: 110px;
+/* === Snapshot-zentrierte Timeline === */
+.ht-tl {
+    display: flex;
+    flex-direction: column;
+    gap: var(--sp-xl);
 }
 
-/* Stündliches Layout: höher wegen Datums-Markern oben */
-.ht-axis--hourly {
-    height: 130px;
+.ht-tl-hint {
+    font-size: 12px;
+    color: var(--text-tertiary);
+    font-style: italic;
+    padding: 4px 0;
 }
 
-/* Punkte-Bereich (über der Linie) */
-.ht-points {
-    position: absolute;
-    left: 4%;
-    right: 4%;
-    top: 0;
-    height: 56px;
+/* Quanti-Strip (Heatmap-Zeile) */
+.ht-strip {
+    display: flex;
+    flex-direction: column;
+    gap: 4px;
 }
-
-.ht-axis--hourly .ht-points {
-    top: 20px;
+.ht-strip-cells {
+    display: grid;
+    grid-auto-flow: column;
+    grid-auto-columns: minmax(8px, 1fr);
+    gap: 2px;
+    height: 18px;
 }
-
-/* Achsenlinie */
-.ht-axis-line {
-    position: absolute;
-    left: 2%;
-    right: 2%;
-    top: 60px;
-    height: 2px;
+.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;
+}
+.ht-strip-cell.empty {
     background: var(--border);
+    opacity: 0.4;
+    cursor: default;
+}
+.ht-strip-cell:hover:not(.empty) {
+    transform: scaleY(1.4);
+    box-shadow: var(--glow-accent);
+}
+.ht-strip-cell.has-snapshot {
+    box-shadow: inset 0 -2px 0 var(--accent);
+}
+.ht-strip-labels {
+    display: grid;
+    gap: 2px;
+    font-size: 9px;
+    font-family: var(--font-mono);
+    color: var(--text-tertiary);
+}
+.ht-strip-label {
+    text-align: left;
+    white-space: nowrap;
 }
 
-.ht-axis--hourly .ht-axis-line {
-    top: 80px;
+/* 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;
 }
 
-/* Datums-Marker (vertikale Linie + Datum oben, nur bei Stunden-Granularität) */
-.ht-day-markers {
-    position: absolute;
-    left: 4%;
-    right: 4%;
-    top: 0;
-    bottom: 0;
-    pointer-events: none;
+/* 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-day-marker {
-    position: absolute;
-    top: 0;
-}
-
-.ht-day-marker-label {
+.ht-card::before {
+    content: '';
     position: absolute;
     top: 0;
     left: 0;
-    transform: translateX(-50%);
-    font-size: 10px;
+    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);
-    white-space: nowrap;
 }
-
-.ht-day-marker-line {
-    position: absolute;
-    top: 14px;
-    height: 66px;
-    width: 1px;
-    left: 0;
-    background: var(--accent);
-    opacity: 0.2;
-}
-
-/* Punkt (Basis) */
-.ht-point {
-    position: absolute;
-    bottom: 0;
-    transform: translateX(-50%);
-    border-radius: 50%;
-    background: var(--text-disabled);
-    border: 2px solid var(--bg-card);
-    cursor: pointer;
-    transition: all 0.2s ease;
-    z-index: 2;
-}
-
-.ht-point:hover {
-    box-shadow: var(--glow-accent);
-    z-index: 4;
-}
-
-.ht-point.active {
-    box-shadow: var(--glow-accent-strong);
-    z-index: 4;
-}
-
-/* Dimmen: nicht-aktive Punkte verblassen wenn ein Punkt aktiv ist */
-.ht-points:has(.ht-point.active) .ht-point:not(.active) {
-    opacity: 0.3;
-    transition: opacity 0.3s ease;
-}
-
-/* Pfeil über dem aktiven Punkt */
-.ht-point.active::after {
-    content: '▼';
-    position: absolute;
-    bottom: calc(100% + 2px);
-    left: 50%;
-    transform: translateX(-50%);
-    font-size: 10px;
-    color: var(--accent);
-    pointer-events: none;
-    line-height: 1;
-}
-
-/* Snapshot-Punkt (Raute) */
-.ht-point.ht-snapshot-point {
-    border-radius: 2px;
-    transform: translateX(-50%) rotate(45deg);
-    background: var(--accent);
-    box-shadow: var(--glow-accent);
-}
-
-.ht-point.ht-snapshot-point .ht-tooltip,
-.ht-point.ht-snapshot-point .ht-point-count {
-    transform: rotate(-45deg);
-}
-
-.ht-point.ht-snapshot-point .ht-tooltip {
-    transform: rotate(-45deg) translateX(-50%);
-    transform-origin: bottom left;
-}
-
-/* Gemischter Punkt (Gold-Kreis) */
-.ht-point.ht-mixed-point {
-    background: var(--accent);
-    border: 2px solid var(--bg-card);
-}
-
-/* Tooltip (über dem Punkt) */
-.ht-tooltip {
-    position: absolute;
-    bottom: calc(100% + 6px);
-    left: 50%;
-    transform: translateX(-50%);
-    background: var(--bg-secondary);
+.ht-card-preview {
+    font-size: 13px;
     color: var(--text-primary);
-    font-size: 11px;
-    padding: 3px 8px;
-    border-radius: var(--radius);
-    white-space: nowrap;
-    pointer-events: none;
-    opacity: 0;
-    visibility: hidden;
-    transition: opacity 0.15s ease, visibility 0.15s ease;
-    border: 1px solid var(--border);
-    z-index: 10;
+    line-height: 1.4;
+    overflow: hidden;
+    display: -webkit-box;
+    -webkit-line-clamp: 3;
+    -webkit-box-orient: vertical;
+    flex: 1;
 }
-
-.ht-point:hover .ht-tooltip {
-    opacity: 1;
-    visibility: visible;
-}
-
-/* Zahl unter dem Punkt */
-.ht-point-count {
-    position: absolute;
-    top: calc(100% + 6px);
-    left: 50%;
-    transform: translateX(-50%);
+.ht-card-meta {
     font-size: 10px;
-    font-family: var(--font-mono);
-    color: var(--text-disabled);
-    white-space: nowrap;
-    pointer-events: none;
-}
-
-.ht-point.active .ht-point-count,
-.ht-point:hover .ht-point-count {
-    color: var(--accent);
-}
-
-/* Achsen-Labels (unter der Linie) */
-.ht-axis-labels {
-    position: absolute;
-    left: 4%;
-    right: 4%;
-    top: 72px;
-    height: 20px;
-}
-
-.ht-axis--hourly .ht-axis-labels {
-    top: 90px;
-}
-
-.ht-axis-label {
-    position: absolute;
-    transform: translateX(-50%);
-    font-size: 10px;
-    font-family: var(--font-mono);
     color: var(--text-tertiary);
-    white-space: nowrap;
+    font-family: var(--font-mono);
+    margin-top: 4px;
 }
 
-/* Leerer Zustand */
+/* 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 */
+.ht-stream {
+    margin-top: 8px;
+}
 .ht-empty {
     padding: 20px;
     text-align: center;
@@ -2664,20 +2666,18 @@ a.dev-source-pill:hover {
     color: var(--text-tertiary);
 }
 
-/* Detail-Panel */
-.ht-detail-panel {
-    margin-top: 8px;
+/* 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;
 }
-
 @keyframes ht-slide-down {
     from { opacity: 0; transform: translateY(-8px); }
-    to { opacity: 1; transform: translateY(0); }
+    to   { opacity: 1; transform: translateY(0); }
 }
-
 .ht-detail-header {
     display: flex;
     justify-content: space-between;
@@ -2685,14 +2685,12 @@ a.dev-source-pill:hover {
     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;
@@ -2702,21 +2700,46 @@ a.dev-source-pill:hover {
     padding: 0 4px;
     line-height: 1;
 }
-
-.ht-detail-close:hover {
-    color: var(--text-primary);
-}
-
-.ht-detail-content {
-    max-height: 350px;
+.ht-detail-close:hover { color: var(--text-primary); }
+.ht-detail-body {
+    max-height: 480px;
     overflow-y: auto;
-    padding: 4px 12px;
+    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%; }
 }
 
-.ht-detail-content::-webkit-scrollbar { width: 6px; }
-.ht-detail-content::-webkit-scrollbar-track { background: var(--bg-primary); border-radius: 3px; }
-.ht-detail-content::-webkit-scrollbar-thumb { background: var(--text-disabled); border-radius: 3px; }
-.ht-detail-content::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }
+/* Reduced Motion */
+@media (prefers-reduced-motion: reduce) {
+    .ht-now-pulse { animation: none; }
+    .ht-detail { animation: none; }
+    .ht-card { transition: none; }
+}
 
 /* === Briefing Listen === */
 .briefing-content ul {
diff --git a/src/static/dashboard.html b/src/static/dashboard.html
index 0c9e2e5..05004db 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=20260316k">
+    <link rel="stylesheet" href="/static/css/style.css?v=20260501b">
 <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=20260427c"></script>
+    <script src="/static/js/app.js?v=20260501b"></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 79f6a02..9560dbe 100644
--- a/src/static/js/app.js
+++ b/src/static/js/app.js
@@ -433,7 +433,7 @@ const App = {
     _editingSourceId: null,
     _timelineFilter: 'all',
     _timelineRange: 'all',
-    _activePointIndex: null,
+    _activeTimelineDetail: null,
     _timelineSearchTimer: null,
     _pendingComplete: null,
     _pendingCompleteTimer: null,
@@ -1038,7 +1038,7 @@ const App = {
         }
         this._timelineFilter = 'all';
         this._timelineRange = 'all';
-        this._activePointIndex = null;
+        this._activeTimelineDetail = null;
         const _tsEl = document.getElementById('timeline-search'); if (_tsEl) _tsEl.value = '';
         document.querySelectorAll('.ht-filter-btn').forEach(btn => {
             const isActive = btn.dataset.filter === 'all';
@@ -1114,6 +1114,12 @@ 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)
+     */
     rerenderTimeline() {
         const container = document.getElementById('timeline');
         if (!container) return;
@@ -1121,11 +1127,12 @@ const App = {
         const filterType = this._timelineFilter;
         const range = this._timelineRange;
 
+        // Filter-spezifische Eintraege fuer die Hauptansicht
         let entries = this._collectEntries(filterType, searchTerm, range);
         this._updateTimelineCount(entries);
 
         if (entries.length === 0) {
-            this._activePointIndex = null;
+            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>';
@@ -1134,261 +1141,356 @@ const App = {
 
         entries.sort((a, b) => new Date(a.timestamp || 0) - new Date(b.timestamp || 0));
 
-        const granularity = this._calcGranularity(entries, range);
-        let buckets = this._buildBuckets(entries, granularity);
-        buckets = this._mergeCloseBuckets(buckets);
+        // Quanti-Strip nutzt IMMER alle Eintraege im aktuellen Range (unabh. vom Filter),
+        // damit Klick auf ein Quadrat die echte Aktivitaet zeigt.
+        const stripEntries = this._collectEntries('all', '', range);
+        stripEntries.sort((a, b) => new Date(a.timestamp || 0) - new Date(b.timestamp || 0));
 
-        // Aktiven Index validieren
-        if (this._activePointIndex !== null && this._activePointIndex >= buckets.length) {
-            this._activePointIndex = null;
+        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) {
+            html += this._renderTimelineStrip(stripEntries);
         }
 
-        // Achsen-Bereich
-        const rangeStart = buckets[0].timestamp;
-        const rangeEnd = buckets[buckets.length - 1].timestamp;
-        const maxCount = Math.max(...buckets.map(b => b.entries.length));
-
-        // Stunden- vs. Tages-Granularität
-        const isHourly = granularity === 'hour';
-        const axisLabels = this._buildAxisLabels(buckets, granularity, true);
-
-        // HTML aufbauen
-        let html = `<div class="ht-axis${isHourly ? ' ht-axis--hourly' : ''}">`;
-
-        // Datums-Marker (immer anzeigen, ausgedünnt)
-        const dayMarkers = this._thinLabels(this._buildDayMarkers(buckets, rangeStart, rangeEnd), 10);
-        html += '<div class="ht-day-markers">';
-        dayMarkers.forEach(m => {
-            html += `<div class="ht-day-marker" style="left:${m.pos}%;">`;
-            html += `<div class="ht-day-marker-label">${UI.escape(m.text)}</div>`;
-            html += `<div class="ht-day-marker-line"></div>`;
-            html += `</div>`;
-        });
-        html += '</div>';
-
-        // Punkte
-        html += '<div class="ht-points">';
-        buckets.forEach((bucket, idx) => {
-            const pos = this._bucketPositionPercent(bucket, rangeStart, rangeEnd, buckets.length);
-            const size = this._calcPointSize(bucket.entries.length, maxCount);
-            const hasSnapshots = bucket.entries.some(e => e.kind === 'snapshot');
-            const hasArticles = bucket.entries.some(e => e.kind === 'article');
-
-            let pointClass = 'ht-point';
-            if (filterType === 'snapshots') {
-                pointClass += ' ht-snapshot-point';
-            } else if (hasSnapshots) {
-                pointClass += ' ht-mixed-point';
+        // 2) Hauptansicht je nach Filter
+        if (filterType === 'snapshots') {
+            html += this._renderSnapshotsOnly(snapshots);
+        } else if (filterType === 'articles') {
+            html += this._renderTimelineStream(articles);
+        } else {
+            // 'all'
+            if (snapshots.length === 0) {
+                html += '<div class="ht-tl-hint">Noch kein Lagebericht. Aktiviere einen Refresh, um den ersten zu erstellen.</div>';
+                html += this._renderTimelineStream(articles);
+            } else {
+                html += this._renderTimelineChain(snapshots, articles);
             }
-            if (this._activePointIndex === idx) pointClass += ' active';
-
-            const tooltip = `${bucket.label}: ${bucket.entries.length} Eintr${bucket.entries.length === 1 ? 'ag' : 'äge'}`;
-
-            html += `<div class="${pointClass}" style="left:${pos}%;width:${size}px;height:${size}px;" onclick="App.openTimelineDetail(${idx})" data-idx="${idx}">`;
-            html += `<div class="ht-tooltip">${UI.escape(tooltip)}</div>`;
-            html += `</div>`;
-        });
-        html += '</div>';
-
-        // Achsenlinie
-        html += '<div class="ht-axis-line"></div>';
-
-        // Achsen-Labels (ausgedünnt um Überlappung zu vermeiden)
-        const thinned = this._thinLabels(axisLabels);
-        html += '<div class="ht-axis-labels">';
-        thinned.forEach(lbl => {
-            html += `<div class="ht-axis-label" style="left:${lbl.pos}%;">${UI.escape(lbl.text)}</div>`;
-        });
-        html += '</div>';
-        html += '</div>';
-
-        // Detail-Panel (wenn ein Punkt aktiv ist)
-        if (this._activePointIndex !== null && this._activePointIndex < buckets.length) {
-            html += this._renderDetailPanel(buckets[this._activePointIndex]);
         }
 
+        // 3) Detail-Panel falls aktiv
+        if (this._activeTimelineDetail) {
+            html += this._renderTimelineDetail(this._activeTimelineDetail);
+        }
+
+        html += '</div>';
         container.innerHTML = html;
     },
 
-    _calcGranularity(entries, range) {
-        if (entries.length < 2) return 'day';
-        const timestamps = entries.map(e => new Date(e.timestamp || 0).getTime()).filter(t => t > 0);
-        if (timestamps.length < 2) return 'day';
-        const span = Math.max(...timestamps) - Math.min(...timestamps);
-        if (range === '24h' || span <= 48 * 60 * 60 * 1000) return 'hour';
-        return 'day';
+    /* ======= Quanti-Strip ======= */
+    _stripGranularity(stripEntries) {
+        if (stripEntries.length < 2) return 'day';
+        const ts = stripEntries.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);
+        const DAY = 86400000;
+        if (span <= 2 * DAY) return 'hour';
+        if (span <= 60 * DAY) return 'day';
+        if (span <= 365 * DAY) return 'week';
+        return 'month';
     },
 
-    _buildBuckets(entries, granularity) {
-        const bucketMap = {};
-        entries.forEach(e => {
-            const d = new Date(e.timestamp || 0);
-            const b = _tz(d);
-            let key, label, ts;
-            if (granularity === 'hour') {
-                key = `${b.year}-${b.month + 1}-${b.date}-${b.hours}`;
-                label = d.toLocaleDateString('de-DE', { day: '2-digit', month: 'short', timeZone: TIMEZONE }) + ', ' + b.hours.toString().padStart(2, '0') + ':00';
-                ts = new Date(b.year, b.month, b.date, b.hours).getTime();
-            } else {
-                key = `${b.year}-${b.month + 1}-${b.date}`;
-                label = d.toLocaleDateString('de-DE', { weekday: 'short', day: '2-digit', month: 'short', timeZone: TIMEZONE });
-                ts = new Date(b.year, b.month, b.date, 12).getTime();
-            }
-            if (!bucketMap[key]) {
-                bucketMap[key] = { key, label, timestamp: ts, entries: [] };
-            }
-            bucketMap[key].entries.push(e);
-        });
-        return Object.values(bucketMap).sort((a, b) => a.timestamp - b.timestamp);
-    },
+    _buildStripBuckets(stripEntries, granularity) {
+        if (stripEntries.length === 0) return [];
+        const ts = stripEntries.map(e => new Date(e.timestamp || 0).getTime()).filter(t => t > 0);
+        if (ts.length === 0) return [];
+        const minTs = Math.min(...ts);
+        const maxTs = Math.max(...ts);
 
-    _mergeCloseBuckets(buckets) {
-        if (buckets.length < 2) return buckets;
-        const rangeStart = buckets[0].timestamp;
-        const rangeEnd = buckets[buckets.length - 1].timestamp;
-        if (rangeEnd <= rangeStart) return buckets;
-
-        const container = document.getElementById('timeline');
-        const axisWidth = (container ? container.offsetWidth : 800) * 0.92;
-        const maxCount = Math.max(...buckets.map(b => b.entries.length));
-        const result = [buckets[0]];
-
-        for (let i = 1; i < buckets.length; i++) {
-            const prev = result[result.length - 1];
-            const curr = buckets[i];
-
-            const distPx = ((curr.timestamp - prev.timestamp) / (rangeEnd - rangeStart)) * axisWidth;
-            const prevSize = Math.min(32, this._calcPointSize(prev.entries.length, maxCount));
-            const currSize = Math.min(32, this._calcPointSize(curr.entries.length, maxCount));
-            const minDistPx = (prevSize + currSize) / 2 + 6;
-
-            if (distPx < minDistPx) {
-                prev.entries = prev.entries.concat(curr.entries);
-            } else {
-                result.push(curr);
-            }
+        // Bucket-Start fuer minTs ermitteln
+        const minDate = new Date(minTs);
+        const tzMin = _tz(minDate);
+        let firstStart;
+        let stepMs;
+        if (granularity === 'hour') {
+            firstStart = new Date(tzMin.year, tzMin.month, tzMin.date, tzMin.hours).getTime();
+            stepMs = 3600000;
+        } else if (granularity === 'day') {
+            firstStart = new Date(tzMin.year, tzMin.month, tzMin.date).getTime();
+            stepMs = 86400000;
+        } else if (granularity === 'week') {
+            const dow = (minDate.getDay() + 6) % 7; // 0=Mo
+            firstStart = new Date(tzMin.year, tzMin.month, tzMin.date - dow).getTime();
+            stepMs = 7 * 86400000;
+        } else {
+            firstStart = new Date(tzMin.year, tzMin.month, 1).getTime();
+            stepMs = null; // dynamisch (Monatsgrenzen)
         }
-        return result;
-    },
 
-    _bucketPositionPercent(bucket, rangeStart, rangeEnd, totalBuckets) {
-        if (totalBuckets === 1) return 50;
-        if (rangeEnd === rangeStart) return 50;
-        return ((bucket.timestamp - rangeStart) / (rangeEnd - rangeStart)) * 100;
-    },
-
-    _calcPointSize(count, maxCount) {
-        if (maxCount <= 1) return 16;
-        const minSize = 12;
-        const maxSize = 32;
-        const logScale = Math.log(count + 1) / Math.log(maxCount + 1);
-        return Math.round(minSize + logScale * (maxSize - minSize));
-    },
-
-    _buildAxisLabels(buckets, granularity, timeOnly) {
-        if (buckets.length === 0) return [];
-        const maxLabels = 8;
-        const labels = [];
-        const rangeStart = buckets[0].timestamp;
-        const rangeEnd = buckets[buckets.length - 1].timestamp;
-
-        const getLabelText = (b) => {
-            if (timeOnly) {
-                // Bei Tages-Granularität: Uhrzeit des ersten Eintrags nehmen
-                const ts = (granularity === 'day' && b.entries && b.entries.length > 0)
-                    ? new Date(b.entries[0].timestamp || b.timestamp)
-                    : new Date(b.timestamp);
-                const tp = _tz(ts);
-                return tp.hours.toString().padStart(2, '0') + ':' + tp.minutes.toString().padStart(2, '0');
-            }
-            return b.label;
+        const buckets = [];
+        const fmt = (t) => {
+            const d = new Date(t);
+            if (granularity === 'hour') return d.toLocaleString('de-DE', { day: '2-digit', month: 'short', hour: '2-digit', minute: '2-digit', timeZone: TIMEZONE });
+            if (granularity === 'day') return d.toLocaleDateString('de-DE', { weekday: 'short', day: '2-digit', month: 'short', timeZone: TIMEZONE });
+            if (granularity === 'week') return 'Woche ab ' + d.toLocaleDateString('de-DE', { day: '2-digit', month: 'short', timeZone: TIMEZONE });
+            return d.toLocaleDateString('de-DE', { month: 'long', year: 'numeric', timeZone: TIMEZONE });
         };
 
-        if (buckets.length <= maxLabels) {
-            buckets.forEach(b => {
-                labels.push({ text: getLabelText(b), pos: this._bucketPositionPercent(b, rangeStart, rangeEnd, buckets.length) });
-            });
+        if (granularity === 'month') {
+            let d = new Date(firstStart);
+            while (d.getTime() <= maxTs && buckets.length < 240) {
+                const start = d.getTime();
+                const next = new Date(d.getFullYear(), d.getMonth() + 1, 1).getTime();
+                buckets.push({ start, end: next, label: fmt(start), articles: 0, snapshots: 0 });
+                d = new Date(next);
+            }
         } else {
-            const step = (buckets.length - 1) / (maxLabels - 1);
-            for (let i = 0; i < maxLabels; i++) {
-                const idx = Math.round(i * step);
-                const b = buckets[idx];
-                labels.push({ text: getLabelText(b), pos: this._bucketPositionPercent(b, rangeStart, rangeEnd, buckets.length) });
+            for (let t = firstStart; t <= maxTs && buckets.length < 240; t += stepMs) {
+                buckets.push({ start: t, end: t + stepMs, label: fmt(t), articles: 0, snapshots: 0 });
             }
         }
-        return labels;
-    },
 
-    _thinLabels(labels, minGapPercent) {
-        if (!labels || labels.length <= 1) return labels;
-        const gap = minGapPercent || 8;
-        const result = [labels[0]];
-        for (let i = 1; i < labels.length; i++) {
-            if (labels[i].pos - result[result.length - 1].pos >= gap) {
-                result.push(labels[i]);
-            }
-        }
-        return result;
-    },
-
-    _buildDayMarkers(buckets, rangeStart, rangeEnd) {
-        const seen = {};
-        const markers = [];
-        buckets.forEach(b => {
-            const d = new Date(b.timestamp);
-            const bp = _tz(d);
-            const dayKey = `${bp.year}-${bp.month}-${bp.date}`;
-            if (!seen[dayKey]) {
-                seen[dayKey] = true;
-                const np = _tz(new Date());
-                const todayKey = `${np.year}-${np.month}-${np.date}`;
-                const yp = _tz(new Date(Date.now() - 86400000));
-                const yesterdayKey = `${yp.year}-${yp.month}-${yp.date}`;
-                let label;
-                const dateStr = d.toLocaleDateString('de-DE', { day: '2-digit', month: 'short', timeZone: TIMEZONE });
-                if (dayKey === todayKey) {
-                    label = 'Heute, ' + dateStr;
-                } else if (dayKey === yesterdayKey) {
-                    label = 'Gestern, ' + dateStr;
-                } else {
-                    label = d.toLocaleDateString('de-DE', { weekday: 'short', day: '2-digit', month: 'short', timeZone: TIMEZONE });
+        // Eintraege zaehlen
+        stripEntries.forEach(e => {
+            const ets = new Date(e.timestamp || 0).getTime();
+            // Linear-Suche, da Buckets sortiert; bei vielen Buckets ggf. Binary
+            for (let i = 0; i < buckets.length; i++) {
+                if (ets >= buckets[i].start && ets < buckets[i].end) {
+                    if (e.kind === 'article') buckets[i].articles++;
+                    else if (e.kind === 'snapshot') buckets[i].snapshots++;
+                    break;
                 }
-                const pos = this._bucketPositionPercent(b, rangeStart, rangeEnd, buckets.length);
-                markers.push({ text: label, pos });
             }
         });
-        return markers;
+
+        return buckets;
     },
 
-    _renderDetailPanel(bucket) {
-        const type = this._currentIncidentType;
-        const sorted = [...bucket.entries].sort((a, b) => {
-            if (a.kind === 'snapshot' && b.kind !== 'snapshot') return -1;
-            if (a.kind !== 'snapshot' && b.kind === 'snapshot') return 1;
-            return new Date(b.timestamp || 0) - new Date(a.timestamp || 0);
-        });
+    _renderTimelineStrip(stripEntries) {
+        const granularity = this._stripGranularity(stripEntries);
+        const buckets = this._buildStripBuckets(stripEntries, granularity);
+        if (buckets.length === 0) return '';
 
-        let entriesHtml = '';
-        sorted.forEach(e => {
-            if (e.kind === 'snapshot') {
-                entriesHtml += this._renderSnapshotEntry(e.data);
-            } else {
-                entriesHtml += this._renderArticleEntry(e.data, type, 0);
+        const maxCount = Math.max(1, ...buckets.map(b => b.articles));
+
+        let html = '<div class="ht-strip">';
+        html += '<div class="ht-strip-cells">';
+        buckets.forEach(b => {
+            const intensity = b.articles > 0 ? Math.min(1, b.articles / maxCount) : 0;
+            const cls = ['ht-strip-cell'];
+            if (b.snapshots > 0) cls.push('has-snapshot');
+            if (b.articles === 0 && b.snapshots === 0) cls.push('empty');
+            const tip = `${b.label}: ${b.articles} Meldung${b.articles === 1 ? '' : 'en'}` +
+                (b.snapshots > 0 ? ` + ${b.snapshots} Lagebericht${b.snapshots === 1 ? '' : 'e'}` : '');
+            html += `<div class="${cls.join(' ')}" style="--intensity:${intensity.toFixed(3)};" title="${UI.escape(tip)}" onclick="App.openTimelineWindow(${b.start}, ${b.end}, ${UI.escape(JSON.stringify(b.label))})"></div>`;
+        });
+        html += '</div>';
+
+        // Wenige Datums-Labels unter dem Strip
+        const labelCount = Math.min(buckets.length, 6);
+        const stride = Math.max(1, Math.floor(buckets.length / labelCount));
+        const labelTexts = [];
+        for (let i = 0; i < buckets.length; i += stride) {
+            const b = buckets[i];
+            const d = new Date(b.start);
+            let txt;
+            if (granularity === 'hour') txt = d.toLocaleTimeString('de-DE', { hour: '2-digit', minute: '2-digit', timeZone: TIMEZONE });
+            else if (granularity === 'day') txt = d.toLocaleDateString('de-DE', { day: '2-digit', month: 'short', timeZone: TIMEZONE });
+            else if (granularity === 'week') txt = 'KW ' + d.toLocaleDateString('de-DE', { day: '2-digit', month: 'short', timeZone: TIMEZONE });
+            else txt = d.toLocaleDateString('de-DE', { month: 'short', year: '2-digit', timeZone: TIMEZONE });
+            labelTexts.push({ text: txt, idx: i });
+        }
+        if (labelTexts.length) {
+            html += '<div class="ht-strip-labels" style="grid-template-columns: repeat(' + buckets.length + ', 1fr);">';
+            const seen = new Set(labelTexts.map(l => l.idx));
+            for (let i = 0; i < buckets.length; i++) {
+                if (seen.has(i)) {
+                    const t = labelTexts.find(l => l.idx === i).text;
+                    html += `<div class="ht-strip-label">${UI.escape(t)}</div>`;
+                } else {
+                    html += '<div></div>';
+                }
+            }
+            html += '</div>';
+        }
+        html += '</div>';
+        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');
             }
         });
 
-        return `<div class="ht-detail-panel">
-            <div class="ht-detail-header">
-                <span class="ht-detail-title">${UI.escape(bucket.label)} (${bucket.entries.length} Eintr${bucket.entries.length === 1 ? 'ag' : 'äge'})</span>
-                <button class="ht-detail-close" onclick="App.closeTimelineDetail()">&times;</button>
+        // 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(${data.id});}">
+            <div class="ht-card-icon" aria-hidden="true">
+                <svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M14 3H6a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V9z"/><path d="M14 3v6h6"/><path d="M8 13h8M8 17h6"/></svg>
             </div>
-            <div class="ht-detail-content">${entriesHtml}</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._activePointIndex = null;
+        this._activeTimelineDetail = null;
         document.querySelectorAll('.ht-filter-btn').forEach(btn => {
             const isActive = btn.dataset.filter === filter;
             btn.classList.toggle('active', isActive);
@@ -1399,7 +1501,7 @@ const App = {
 
     setTimelineRange(range) {
         this._timelineRange = range;
-        this._activePointIndex = null;
+        this._activeTimelineDetail = null;
         document.querySelectorAll('.ht-range-btn').forEach(btn => {
             const isActive = btn.dataset.range === range;
             btn.classList.toggle('active', isActive);
@@ -1408,18 +1510,21 @@ const App = {
         this.rerenderTimeline();
     },
 
-    openTimelineDetail(bucketIndex) {
-        if (this._activePointIndex === bucketIndex) {
-            this._activePointIndex = null;
-        } else {
-            this._activePointIndex = bucketIndex;
-        }
+    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();
+    },
+
+    openTimelineWindow(startMs, endMs, label) {
+        this._activeTimelineDetail = { type: 'window', start: startMs, end: endMs, label: label || 'Zeitfenster' };
         this.rerenderTimeline();
         this._resizeTimelineTile();
     },
 
     closeTimelineDetail() {
-        this._activePointIndex = null;
+        this._activeTimelineDetail = null;
         this.rerenderTimeline();
         this._resizeTimelineTile();
     },