css cleanup

src/app/globals.css

@@ -2,22 +2,14 @@
 @tailwind components;
 @tailwind utilities;
 
-:root {
-  --background: #ffffff;
-  --foreground: #171717;
+*,
+*::before,
+*::after {
+  box-sizing: border-box;
 }
 
-@media (prefers-color-scheme: dark) {
-  :root {
-    --background: #0a0a0a;
-    --foreground: #ededed;
-  }
-}
-
-body {
-  color: var(--foreground);
-  background: var(--background);
-  font-family: Arial, Helvetica, sans-serif;
+*::-webkit-scrollbar {
+  display: none !important;
 }
 
 @layer utilities {