diff --git a/static/style.css b/static/style.css
index 5ac2a89..f6b5f8b 100644
--- a/static/style.css
+++ b/static/style.css
@@ -13,7 +13,7 @@
 }
 
 /* ── Layout ─────────────────────────────────────────── */
-html, body { height: 100%; margin: 0; padding: 0; }
+html, body { height: 100%; margin: 0; padding: 0; overflow-x: hidden; }
 
 /* ── Top nav ─────────────────────────────────────────── */
 #topnav {
@@ -70,7 +70,7 @@ html, body { height: 100%; margin: 0; padding: 0; }
 }
 
 /* ── Map page ────────────────────────────────────────── */
-#page-map { display: flex; flex-direction: column; flex: 1; position: relative; }
+#page-map { display: flex; flex-direction: column; flex: 1; position: relative; overflow: hidden; }
 #map { flex: 1; min-height: 0; }
 
 /* Slider + fuel panel */