diff --git a/src/lib/components/LocationDialog.svelte b/src/lib/components/LocationDialog.svelte
index 919fc26..6a68684 100644
--- a/src/lib/components/LocationDialog.svelte
+++ b/src/lib/components/LocationDialog.svelte
@@ -125,7 +125,7 @@
 		position: fixed; inset: 0; z-index: 2500; background: transparent; border: none; padding: 0; margin: 0; width: 100vw; height: 100vh; cursor: default;
 	}
 	.ctx {
-		position: absolute; z-index: 2600; width: 300px; background: #fff; color: #0f172a;
+		position: fixed; z-index: 2600; width: 300px; background: #fff; color: #0f172a;
 		border-radius: 10px; box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3); padding: 12px 14px;
 		font: 0.8rem system-ui, sans-serif;
 	}
diff --git a/src/lib/components/MapView.svelte b/src/lib/components/MapView.svelte
index a199cc9..cbba7e4 100644
--- a/src/lib/components/MapView.svelte
+++ b/src/lib/components/MapView.svelte
@@ -325,10 +325,13 @@
 	// Open the context dialog at a lat/lon. `feature` null => treat as a bare
 	// map spot (offer save). We also check whether this spot is a saved point.
 	function openContextAt(latlng: L.LatLng, featureInfo: { name: string; rows: [string, string][] } | null) {
+		// containerPoint is relative to the map container; convert to viewport
+		// coords so the (fixed-positioned) dialog aligns exactly with the click.
 		const xy = map.latLngToContainerPoint(latlng);
+		const rect = map.getContainer().getBoundingClientRect();
 		const sp = findSavedPointNear(latlng.lat, latlng.lng);
 		ctx = {
-			x: xy.x, y: xy.y, lat: latlng.lat, lon: latlng.lng,
+			x: rect.left + xy.x, y: rect.top + xy.y, lat: latlng.lat, lon: latlng.lng,
 			feature: featureInfo,
 			savedPoint: sp?.id ? sp : null
 		};