Update theme colors

src/app/styles/variables.css

@@ -13,12 +13,12 @@
   --background: #f5f5f5;
   --card: #ffffff;
   --foreground: #1c1c1c;
-  --primary-cta: #1f514c;
+  --primary-cta: #1f3251;
   --primary-cta-text: #f5f5f5;
   --secondary-cta: #ffffff;
   --secondary-cta-text: #1c1c1c;
-  --accent: #159c49;
-  --background-accent: #a8e8ba;
+  --accent: #15479c;
+  --background-accent: #a8cce8;
 
   /* text sizing - set by ThemeProvider */
   /* --text-2xs: clamp(0.465rem, 0.62vw, 0.62rem);