diff --git a/frontend/src/components/simulator/CanvasMinimap.css b/frontend/src/components/simulator/CanvasMinimap.css
index b1ea4ce8..3bcac176 100644
--- a/frontend/src/components/simulator/CanvasMinimap.css
+++ b/frontend/src/components/simulator/CanvasMinimap.css
@@ -53,8 +53,8 @@
  * based on the calculated rect bounds. */
 .canvas-minimap-viewport {
   position: absolute;
-  border: 1.5px solid rgba(255, 255, 255, 0.85);
-  background: rgba(255, 255, 255, 0.08);
+  border: 1.5px solid rgba(239, 68, 68, 0.95);
+  background: rgba(239, 68, 68, 0.10);
   border-radius: 2px;
   pointer-events: none;
   /* No transition on left/top — those values change every frame during
diff --git a/frontend/src/components/simulator/CanvasMinimap.tsx b/frontend/src/components/simulator/CanvasMinimap.tsx
index 9eb160ec..840b837f 100644
--- a/frontend/src/components/simulator/CanvasMinimap.tsx
+++ b/frontend/src/components/simulator/CanvasMinimap.tsx
@@ -28,8 +28,8 @@ import type { Component } from '../../types/components';
 import type { BoardInstance } from '../../types/board';
 import './CanvasMinimap.css';
 
-const MINIMAP_W = 200;
-const MINIMAP_H = 150;
+const MINIMAP_W = 140;
+const MINIMAP_H = 105;
 const WORLD_W = 4000;
 const WORLD_H = 3000;
 const SCALE_X = MINIMAP_W / WORLD_W;