diff --git a/apps/web/src/views/detail.ejs b/apps/web/src/views/detail.ejs
index 481bd81..8595d8a 100644
--- a/apps/web/src/views/detail.ejs
+++ b/apps/web/src/views/detail.ejs
@@ -15,10 +15,12 @@
   for (const p of pings.slice(0, 120).reverse()) {
     const rid = p.run_id || p.checked_at;
     if (!runMap[rid]) {
-      runMap[rid] = { run_id: rid, up: 0, down: 0, checked_at: p.checked_at, latency_ms: p.latency_ms };
+      runMap[rid] = { run_id: rid, up: 0, down: 0, total: 0, checked_at: p.checked_at, regions: [] };
       barRuns.push(runMap[rid]);
     }
+    runMap[rid].total++;
     if (p.up) runMap[rid].up++; else runMap[rid].down++;
+    runMap[rid].regions.push({ region: p.region || '', up: p.up, latency_ms: p.latency_ms });
   }
   // Keep last 60 runs
   const barPings = barRuns.slice(-60);
@@ -90,17 +92,19 @@
       <!-- Status bar -->
       <div class="card-static p-4 mb-8">
         <h3 class="text-sm text-gray-400 mb-3">Status History</h3>
-        <div id="status-bar" class="flex gap-0.5 h-8 rounded-lg overflow-hidden">
-          <% if (barPings.length > 0) { %>
-            <% barPings.forEach(function(c) {
-              const color = c.down === 0 ? 'bg-green-500/70' : (c.up === 0 ? 'bg-red-500/70' : 'bg-orange-400/70');
-              const label = c.down === 0 ? 'Up' : (c.up === 0 ? 'Down' : 'Partial');
-            %>
-              <div class="flex-1 rounded-sm <%= color %>" data-run="<%= c.run_id %>" data-up="<%= c.up %>" data-down="<%= c.down %>" title="<%= new Date(c.checked_at).toLocaleString() %> — <%= label %>"></div>
-            <% }) %>
-          <% } else { %>
-            <div class="flex-1 bg-gray-800/50 text-center text-xs text-gray-600 leading-8 rounded-lg">No data</div>
-          <% } %>
+        <div class="relative">
+          <div id="status-bar" class="flex gap-0.5 h-8 rounded-lg overflow-hidden">
+            <% if (barPings.length > 0) { %>
+              <% barPings.forEach(function(c) {
+                const color = c.down === 0 ? 'bg-green-500/70' : (c.up === 0 ? 'bg-red-500/70' : 'bg-orange-400/70');
+              %>
+                <div class="flex-1 rounded-sm <%= color %> cursor-pointer" data-run="<%= c.run_id %>" data-up="<%= c.up %>" data-down="<%= c.down %>" data-total="<%= c.total %>" data-time="<%= c.checked_at %>" data-regions="<%- JSON.stringify(c.regions).replace(/"/g, '&quot;') %>"></div>
+              <% }) %>
+            <% } else { %>
+              <div class="flex-1 bg-gray-800/50 text-center text-xs text-gray-600 leading-8 rounded-lg">No data</div>
+            <% } %>
+          </div>
+          <div id="status-tooltip" class="absolute hidden card-static px-3 py-2 text-xs pointer-events-none z-10 -top-2 -translate-y-full" style="min-width:160px"></div>
         </div>
       </div>
 
@@ -462,6 +466,66 @@
     renderChart();
     window.addEventListener('resize', renderChart);
 
+    // ── Status bar hover tooltip ──────────────────────────────────────
+    const statusBar = document.getElementById('status-bar');
+    const statusTooltip = document.getElementById('status-tooltip');
+
+    statusBar.addEventListener('mousemove', (e) => {
+      const seg = e.target.closest('[data-run]');
+      if (!seg) { statusTooltip.classList.add('hidden'); return; }
+
+      const up = parseInt(seg.dataset.up || '0');
+      const down = parseInt(seg.dataset.down || '0');
+      const total = up + down;
+      const uptimePct = total > 0 ? Math.round((up / total) * 100) : 0;
+      const time = seg.dataset.time ? new Date(seg.dataset.time) : null;
+      const timeStr = time ? time.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit', second: '2-digit' }) : '';
+      const dateStr = time ? time.toLocaleDateString([], { month: 'short', day: 'numeric' }) : '';
+
+      const statusLabel = down === 0 ? '<span class="text-green-400">All Up</span>'
+        : up === 0 ? '<span class="text-red-400">All Down</span>'
+        : '<span class="text-orange-400">Partial</span>';
+
+      let html = `<div class="text-gray-400 mb-1">${dateStr} ${timeStr}</div>`;
+      html += `<div class="flex items-center justify-between gap-4 mb-1"><span>Status</span>${statusLabel}</div>`;
+      html += `<div class="flex items-center justify-between gap-4"><span class="text-gray-500">Uptime</span><span class="text-gray-200 font-mono">${uptimePct}%</span></div>`;
+
+      // Region breakdown
+      let regions = [];
+      try { regions = JSON.parse(seg.dataset.regions || '[]'); } catch {}
+      if (regions.length > 0) {
+        html += '<div class="mt-1.5 pt-1.5 border-t border-gray-700/50">';
+        for (const r of regions) {
+          const flag = {'eu-central':'🇩🇪','us-west':'🇺🇸'}[r.region] || '🌐';
+          const rLabel = r.region || 'unknown';
+          const status = r.up ? '<span class="text-green-400">Up</span>' : '<span class="text-red-400">Down</span>';
+          const lat = r.latency_ms != null ? `<span class="text-gray-400 font-mono">${r.latency_ms}ms</span>` : '';
+          html += `<div class="flex items-center justify-between gap-3"><span>${flag} ${rLabel}</span><span>${lat} ${status}</span></div>`;
+        }
+        html += '</div>';
+      }
+
+      const rid = seg.dataset.run;
+      if (rid) html += `<div class="text-gray-600 mt-1 text-[10px] font-mono">${rid}</div>`;
+
+      statusTooltip.innerHTML = html;
+      statusTooltip.classList.remove('hidden');
+
+      // Position horizontally centered on the segment
+      const barRect = statusBar.getBoundingClientRect();
+      const segRect = seg.getBoundingClientRect();
+      const segCenter = segRect.left + segRect.width / 2 - barRect.left;
+      const tw = statusTooltip.offsetWidth;
+      let left = segCenter - tw / 2;
+      if (left < 0) left = 0;
+      if (left + tw > barRect.width) left = barRect.width - tw;
+      statusTooltip.style.left = left + 'px';
+    });
+
+    statusBar.addEventListener('mouseleave', () => {
+      statusTooltip.classList.add('hidden');
+    });
+
     // Running totals for incremental stat updates
     let _total = <%= pings.length %>, _up = <%= upPings.length %>;
     let _latSum = <%= latencies.reduce((a,b)=>a+b,0) %>, _latCount = <%= latencies.length %>;
@@ -500,22 +564,27 @@
         const rid = ping.run_id || ping.checked_at;
         let existing = bar.querySelector(`[data-run="${rid}"]`);
         if (existing) {
-          // Update existing run segment
           const up = parseInt(existing.dataset.up || '0') + (ping.up ? 1 : 0);
           const down = parseInt(existing.dataset.down || '0') + (ping.up ? 0 : 1);
           existing.dataset.up = up;
           existing.dataset.down = down;
+          existing.dataset.total = up + down;
+          existing.dataset.time = ping.checked_at;
+          const regions = JSON.parse(existing.dataset.regions || '[]');
+          regions.push({ region: ping.region || '', up: ping.up, latency_ms: ping.latency_ms });
+          existing.dataset.regions = JSON.stringify(regions);
           const color = down === 0 ? 'bg-green-500/70' : (up === 0 ? 'bg-red-500/70' : 'bg-orange-400/70');
-          const label = down === 0 ? 'Up' : (up === 0 ? 'Down' : 'Partial');
-          existing.className = `flex-1 rounded-sm ${color}`;
-          existing.title = `${new Date(ping.checked_at).toLocaleString()} — ${label}`;
+          existing.className = `flex-1 rounded-sm ${color} cursor-pointer`;
         } else {
           const seg = document.createElement('div');
-          seg.className = `flex-1 rounded-sm ${ping.up ? 'bg-green-500/70' : 'bg-red-500/70'}`;
+          const color = ping.up ? 'bg-green-500/70' : 'bg-red-500/70';
+          seg.className = `flex-1 rounded-sm ${color} cursor-pointer`;
           seg.dataset.run = rid;
           seg.dataset.up = ping.up ? '1' : '0';
           seg.dataset.down = ping.up ? '0' : '1';
-          seg.title = `${new Date(ping.checked_at).toLocaleString()} — ${ping.up ? 'Up' : 'Down'}`;
+          seg.dataset.total = '1';
+          seg.dataset.time = ping.checked_at;
+          seg.dataset.regions = JSON.stringify([{ region: ping.region || '', up: ping.up, latency_ms: ping.latency_ms }]);
           bar.appendChild(seg);
           while (bar.children.length > 60) bar.removeChild(bar.firstChild);
         }