diff --git a/game.js b/game.js
index ff6cf10..f27985d 100644
--- a/game.js
+++ b/game.js
@@ -1849,11 +1849,17 @@ function renderResources() {
         const el = document.getElementById(id);
         if (el) {
             el.textContent = fmt(val);
-            // Show full spelled-out number on hover for educational value
+            // Show full spelled-out number on hover for educational reference
             el.title = val >= 1000 ? spellf(Math.floor(val)) : '';
         }
         const rEl = document.getElementById(id + '-rate');
-        if (rEl) rEl.textContent = (rate >= 0 ? '+' : '') + fmt(rate) + '/s';
+        if (rEl) {
+            rEl.textContent = (rate >= 0 ? '+' : '') + fmt(rate) + '/s';
+            // Red when draining, green when gaining, dim when zero
+            if (rate < 0) rEl.style.color = '#f44336';
+            else if (rate > 0) rEl.style.color = '#4caf50';
+            else rEl.style.color = '#555';
+        }
     };
 
     set('r-code', G.code, G.codeRate);