diff --git a/app/main.py b/app/main.py
index e4ad7eb..e2a6e37 100644
--- a/app/main.py
+++ b/app/main.py
@@ -2031,11 +2031,15 @@ async def api_aktuelle_themen_top(
     min_similarity: float = 0.4,
     matches_per_news: int = 3,
     only_relevant: bool = False,
+    date: Optional[str] = None,
 ):
     """Top-K News der letzten N Tage mit Antrags-Match.
 
     Mit `only_relevant=true` werden News mit Relevance-Level "low" oder
     "none" rausgefiltert.
+
+    Mit `date=YYYY-MM-DD` werden nur News dieses Tages angezeigt
+    (overrides `days`).
     """
     from .themen_matching import aggregate_top_themen
     return aggregate_top_themen(
@@ -2044,6 +2048,7 @@ async def api_aktuelle_themen_top(
         min_similarity=min_similarity,
         matches_per_news=matches_per_news,
         only_relevant=only_relevant,
+        single_date=date,
     )
 
 
diff --git a/app/templates/v2/screens/aktuelle-themen.html b/app/templates/v2/screens/aktuelle-themen.html
index 3263475..0a78cf8 100644
--- a/app/templates/v2/screens/aktuelle-themen.html
+++ b/app/templates/v2/screens/aktuelle-themen.html
@@ -168,7 +168,7 @@
     <option value="30">30 Tage</option>
   </select>
   <label for="at-topk">Top-N News:</label>
-  <input type="number" id="at-topk" value="20" min="3" max="50" style="width:60px;" onchange="loadActiveTab()" />
+  <input type="number" id="at-topk" value="50" min="3" max="200" style="width:60px;" onchange="loadActiveTab()" />
   <label for="at-minsim">Min. Similarity:</label>
   <select id="at-minsim" onchange="loadActiveTab()">
     <option value="0.30">0.30 (locker)</option>
@@ -193,6 +193,7 @@
 
 <!-- Tab Panels -->
 <div id="at-tab-news" class="at-panel">
+  <div id="at-news-banner" style="font-family:var(--font-mono);font-size:11px;opacity:0.65;margin-bottom:1rem;"></div>
   <div id="at-themen-list">
     <div style="font-family:var(--font-mono);font-size:12px;opacity:0.5;">Lade …</div>
   </div>
@@ -253,6 +254,7 @@
 <script>
 let _atZeitreiheChart = null;
 let _atActiveTab = 'news';
+let _atSingleDate = null;  // YYYY-MM-DD wenn aus Chart geklickt
 
 function atScoreClass(score) {
   if (score == null) return '';
@@ -303,20 +305,47 @@ function loadActiveTab() {
   }
 }
 
+function clearDateFilter() {
+  _atSingleDate = null;
+  loadActiveTab();
+}
+
 async function loadThemen() {
   const days = document.getElementById('at-days').value;
   const topk = document.getElementById('at-topk').value;
   const minsim = document.getElementById('at-minsim').value;
   const onlyRel = document.getElementById('at-only-relevant').checked ? '1' : '0';
   const list = document.getElementById('at-themen-list');
+  const banner = document.getElementById('at-news-banner');
   list.innerHTML = '<div style="font-family:var(--font-mono);font-size:12px;opacity:0.5;">Lade …</div>';
 
   try {
-    const r = await fetch(`/api/aktuelle-themen/top?days=${days}&top_k=${topk}&min_similarity=${minsim}&matches_per_news=3&only_relevant=${onlyRel}`);
+    let url = `/api/aktuelle-themen/top?days=${days}&top_k=${topk}&min_similarity=${minsim}&matches_per_news=3&only_relevant=${onlyRel}`;
+    if (_atSingleDate) url += `&date=${encodeURIComponent(_atSingleDate)}`;
+    const r = await fetch(url);
     const data = await r.json();
 
+    // Banner mit Anzeige-Info
+    let bannerHtml = '';
+    if (_atSingleDate) {
+      bannerHtml += `<span style="display:inline-block;padding:3px 10px;background:rgba(0,157,165,0.18);color:var(--ecg-teal);border-radius:11px;font-weight:700;margin-right:8px;">Tag: ${_atSingleDate}</span>`;
+      bannerHtml += `<button onclick="clearDateFilter()" style="font-family:var(--font-mono);font-size:11px;padding:2px 8px;border:1px solid var(--ecg-border);border-radius:3px;background:var(--ecg-card-bg);cursor:pointer;">× Tag-Filter entfernen</button>`;
+      bannerHtml += '<br>';
+    }
+    bannerHtml += `<strong>${data.n_shown || 0}</strong> News angezeigt · ${data.n_in_window || 0} News im Zeitraum (mit Embedding) · ${data.n_total_news || 0} insgesamt embedded`;
+    if (onlyRel === '1' && data.n_in_window > data.n_shown) {
+      bannerHtml += ` · <em>Filter "nur GWÖ-relevant" aktiv</em>`;
+    }
+    if (data.n_in_window > parseInt(topk)) {
+      bannerHtml += ` · top_k=${topk} ist limitierend, mehr News verfügbar`;
+    }
+    banner.innerHTML = bannerHtml;
+
     if (!data.buckets || !data.buckets.length) {
-      list.innerHTML = '<div style="font-family:var(--font-mono);font-size:12px;opacity:0.5;">Keine News im Zeitfenster ' + (onlyRel === '1' ? '(Filter: nur GWÖ-relevant aktiv — versuch ohne Filter)' : 'oder noch nicht embedded') + '.</div>';
+      list.innerHTML = '<div style="font-family:var(--font-mono);font-size:12px;opacity:0.5;">' + (
+        _atSingleDate ? `Keine News am ${_atSingleDate}` :
+        (onlyRel === '1' ? 'Keine News mit GWÖ-Relevanz im Zeitfenster — versuch Filter aus' : 'Keine News im Zeitfenster oder noch nicht embedded')
+      ) + '.</div>';
       return;
     }
 
@@ -484,9 +513,27 @@ async function loadZeitreihe() {
       data: { labels: data.buckets, datasets: datasets },
       options: {
         responsive: true,
+        onClick: (event, elements) => {
+          // Aus Chart.getElementsAtEventForMode: nehme das X-Achsen-Element
+          const points = _atZeitreiheChart.getElementsAtEventForMode(
+            event, 'index', { intersect: false }, false,
+          );
+          if (points.length > 0) {
+            const dayLabel = data.buckets[points[0].index];
+            if (dayLabel) {
+              _atSingleDate = dayLabel;
+              // Auf den News-Tab wechseln
+              const newsTabBtn = document.querySelector('.at-tab[data-tab="news"]');
+              if (newsTabBtn) newsTabBtn.click();
+            }
+          }
+        },
+        onHover: (event, elements) => {
+          event.native.target.style.cursor = elements.length > 0 ? 'pointer' : 'default';
+        },
         scales: {
           y: { beginAtZero: true, stacked: true, title: { display: true, text: 'Artikel/Tag' } },
-          x: { title: { display: true, text: 'Datum' } },
+          x: { title: { display: true, text: 'Datum (klick öffnet den News-Tab gefiltert)' } },
         },
         plugins: {
           legend: { position: 'bottom' }
@@ -495,7 +542,7 @@ async function loadZeitreihe() {
     });
 
     const total = Object.values(data.series).reduce((s, arr) => s + arr.reduce((a, b) => a + b, 0), 0);
-    meta.textContent = `${total} News-Artikel über ${data.buckets.length} Tage, ${data.sources.length} Quellen.`;
+    meta.innerHTML = `${total} News-Artikel über ${data.buckets.length} Tage, ${data.sources.length} Quellen. <strong>Klick auf einen Tag</strong> wechselt zum News-Tab gefiltert auf diesen Tag.`;
   } catch (e) {
     meta.textContent = 'Fehler: ' + e;
   }
diff --git a/app/themen_matching.py b/app/themen_matching.py
index 8614be3..4cfa7d2 100644
--- a/app/themen_matching.py
+++ b/app/themen_matching.py
@@ -270,6 +270,7 @@ def aggregate_top_themen(
     min_similarity: float = 0.4,
     matches_per_news: int = 3,
     only_relevant: bool = False,
+    single_date: Optional[str] = None,
     db_path: Optional[Path] = None,
 ) -> dict:
     """Top-K aktuelle News (letzte N Tage) mit jeweils ihren passendsten
@@ -313,10 +314,17 @@ def aggregate_top_themen(
             ).timestamp()
         except (ValueError, AttributeError):
             continue
-        if news_ts < cutoff:
+        # single_date hat Vorrang: nur News dieses Tages
+        if single_date:
+            if not n["datum"].startswith(single_date):
+                continue
+        elif news_ts < cutoff:
             continue
         n["_ts"] = news_ts
         fresh.append(n)
+
+    n_in_window = len(fresh)
+
     # Nach Datum desc sortieren, top_k cutten
     fresh.sort(key=lambda x: x["_ts"], reverse=True)
     fresh = fresh[:top_k]
@@ -387,12 +395,15 @@ def aggregate_top_themen(
     return {
         "buckets": buckets,
         "n_total_news": len(news_rows),
+        "n_in_window": n_in_window,
+        "n_shown": len(buckets),
         "filter": {
             "days_window": days_window,
             "top_k": top_k,
             "min_similarity": min_similarity,
             "matches_per_news": matches_per_news,
             "only_relevant": only_relevant,
+            "single_date": single_date,
         },
     }