Update theme colors

Merge version_15 into main

src/app/page.tsx

@@ -48,7 +48,7 @@ export default function LandingPage() {
       description="Premium training grounds and community fields at McDowell Mountain Ranch. Dedicated to developing local talent and fostering active lifestyles."
       tag="Premier Soccer Venue"
       mediaItems={[
-        { imageSrc: "https://webuild-dev.s3.eu-north-1.amazonaws.com/users/user_3CeIrQq3w1bGhAEHxiFxrUprOZT/uploaded-1776825698779-fcyz942y.jpg", imageAlt: "Soccer field aerial view" },
+        { imageSrc: "https://images.unsplash.com/photo-1517466787929-bc90951d0974?q=80&w=2000", imageAlt: "Professional soccer field aerial view" },
         { imageSrc: "https://webuild-dev.s3.eu-north-1.amazonaws.com/users/user_3CeIrQq3w1bGhAEHxiFxrUprOZT/uploaded-1776825698780-nn0yhvyz.jpg", imageAlt: "Soccer training grounds" },
         { imageSrc: "http://img.b2bpic.net/free-photo/soccer-field-stadium-night_23-2149117325.jpg", imageAlt: "Professional soccer field at dusk" },
         { imageSrc: "http://img.b2bpic.net/free-photo/kids-playing-football-supervised-by-football-trainer_23-2149684393.jpg", imageAlt: "Children training on soccer field" }

src/app/styles/variables.css

@@ -10,14 +10,14 @@
   --accent: #ffffff;
   --background-accent: #ffffff; */
 
-  --background: #f5f5f5;
-  --card: #ffffff;
+  --background: #383434;
+  --card: #564b4b;
   --foreground: #1c1c1c;
-  --primary-cta: #1c1c1c;
+  --primary-cta: #1a752a;
   --primary-cta-text: #ffffff;
   --secondary-cta: #ffffff;
   --secondary-cta-text: #f5fffae6;
-  --accent: #e2e2e2;
+  --accent: #343131;
   --background-accent: #c4c4c4;
 
   /* text sizing - set by ThemeProvider */