diff --git a/css/index.css b/css/index.css
index 7815cb4..c2b51ca 100644
--- a/css/index.css
+++ b/css/index.css
@@ -2,12 +2,16 @@
 :root {
   --lightgray: #e0e0e0;
   --gray: #C0C0C0;
-  --darkgray: #333;
+  --text: #333;
   --navy: #17050F;
   --blue: #082840;
-  --white: #fff;
+  --bg: #fff;
 }
-
+@media (prefers-color-scheme: dark) {
+  :root {
+    --text: #fff;
+    --bg: #333;
+  }
 /* Global stylesheet */
 * {
   box-sizing: border-box;