feature: new variables added

src/styles/abstracts/_variables.scss

 // Color Variables
 :root {
-  --color-primary: #FF6765;
-  --color-secondary: #46271B;
+  --color-primary: #FF0055;
+  --color-secondary: #0068FF;
+  --color-third: #00E3B4;
+  --color-gray: #636363;
+  --color-heading: #2E3F58;
+
   --color-complementary: #5BB4CE;
   --color-complementary-darken: #35A0C0;