add stylint

eslint.config.js

@@ -7,6 +7,7 @@ import simpleImportSort from "eslint-plugin-simple-import-sort";
 import unicorn from "eslint-plugin-unicorn";
 import unusedImports from "eslint-plugin-unused-imports";
 import globals from "globals";
+import stylelintPlugin from "stylelint";
 
 /** @type {import('eslint').Linter.FlatConfig[]} */
 export default [
@@ -129,4 +130,13 @@ export default [
 			],
 		},
 	},
+	{
+		files: ["**/*.{css,scss,sass,less}"],
+		plugins: {
+			stylelint: stylelintPlugin,
+		},
+		rules: {
+			"stylelint/rule-name": "error",
+		},
+	},
 ];

package.json

@@ -23,10 +23,13 @@
 		"eslint-plugin-prettier": "^5.2.3",
 		"eslint-plugin-promise": "^7.2.1",
 		"eslint-plugin-simple-import-sort": "^12.1.1",
+		"eslint-plugin-stylelint": "^0.1.1",
 		"eslint-plugin-unicorn": "^56.0.1",
 		"eslint-plugin-unused-imports": "^4.1.4",
 		"globals": "^15.15.0",
-		"prettier": "^3.5.3"
+		"prettier": "^3.5.3",
+		"stylelint": "^16.16.0",
+		"stylelint-config-standard": "^37.0.0"
 	},
 	"peerDependencies": {
 		"typescript": "^5.7.3"

stylelint.config.js

@@ -0,0 +1,9 @@
+/** @type {import('stylelint').Config} */
+export default {
+	extends: ["stylelint-config-standard"],
+	rules: {
+		"color-function-notation": "modern",
+		"font-family-name-quotes": "always-where-required",
+		"declaration-empty-line-before": "never",
+	},
+};