Update README.md

README.md

@@ -13,7 +13,10 @@ pinned: false
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Caretalk AI</title>
  <style>
-   /* CSS Styles */
+      :root {
+     --text-color-light: #333;
+     --text-color-dark: #fff;
+   }
    body {
      font-family: Arial, sans-serif;
      margin: 0;