Update theme colors

Merge version_5 into main

src/app/page.tsx

@@ -195,8 +195,7 @@ export default function LandingPage() {
           inputs={[
             { name: "fullName", type: "text", placeholder: "Full Name", required: true },
             { name: "workEmail", type: "email", placeholder: "Work Email", required: true },
-            { name: "companyName", type: "text", placeholder: "Company Name", required: true },
-            { name: "teamSize", type: "text", placeholder: "Team Size (e.g., 5-10)" }
+            { name: "companyName", type: "text", placeholder: "Company Name", required: true }
           ]}
           textarea={{ name: "message", placeholder: "Tell us about your marketing goals and how Mindex can help", rows: 5, required: false }}
           useInvertedBackground={false}

src/app/styles/variables.css

@@ -13,12 +13,12 @@
   --background: #ffffff;
   --card: #f9f9f9;
   --foreground: #000612e6;
-  --primary-cta: #15479c;
+  --primary-cta: #106EFB;
   --primary-cta-text: #ffffff;
   --secondary-cta: #f9f9f9;
   --secondary-cta-text: #000612e6;
   --accent: #e2e2e2;
-  --background-accent: #c4c4c4;
+  --background-accent: #106EFB;
 
   /* text sizing - set by ThemeProvider */
   /* --text-2xs: clamp(0.465rem, 0.62vw, 0.62rem);