fix(tailwindcss): tailwindcss works with vite, no custom theme

src/index.css

@@ -1,16 +1,14 @@
-@import "./styles/theme.css" layer(theme);
 @import "tailwindcss";
-@layer theme, components;
-@tailwind base;
-@tailwind components;
-@tailwind utilities;
 
 body {
   margin: 0;
-  font-family:
-    -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu",
-    "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
   background: rgba(var(--background));
 }
+
+@theme {
+  --color-primary: 15, 40, 98;
+  --color-secondary: 79, 95, 118;
+  --color-accent: 158, 54, 58;
+  --color-paragraph: 255, 255, 255;
+  --color-background: 9, 31, 54;
+}