diff --git a/.eslintrc.json b/.eslintrc.json
index a9ba90d..dda1fa0 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -22,5 +22,13 @@
         "caughtErrorsIgnorePattern": "^_"
       }
     ]
-  }
+  },
+  "overrides": [
+    {
+      "files": ["types/**/*.d.ts"],
+      "rules": {
+        "@typescript-eslint/triple-slash-reference": "off"
+      }
+    }
+  ]
 }
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..1521c8b
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1 @@
+dist
diff --git a/package.json b/package.json
index c8c96dc..bb9c230 100644
--- a/package.json
+++ b/package.json
@@ -75,9 +75,9 @@
     "eslint-config-prettier": "^9.1.0",
     "preact": "^10.28.2",
     "prettier": "^3.6.2",
-    "vitest": "^2.1.9",
     "tsup": "^8.5.0",
-    "typescript": "^5.9.3"
+    "typescript": "^5.9.3",
+    "vitest": "^2.1.9"
   },
   "engines": {
     "node": ">=22",
diff --git a/src/components/scripts.d.ts b/src/components/scripts.d.ts
deleted file mode 100644
index 89df165..0000000
--- a/src/components/scripts.d.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-declare module "*.inline.ts" {
-  const content: string;
-  export default content;
-}
diff --git a/src/components/styles.d.ts b/src/components/styles.d.ts
deleted file mode 100644
index 0a31e5e..0000000
--- a/src/components/styles.d.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-declare module "*.scss" {
-  const content: string;
-  export default content;
-}
diff --git a/tsconfig.json b/tsconfig.json
index 99ca5e7..e2479a9 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -21,6 +21,6 @@
     "jsx": "react-jsx",
     "jsxImportSource": "preact"
   },
-  "include": ["src", "test", "tsup.config.ts", "vitest.config.ts"],
+  "include": ["src", "test", "tsup.config.ts", "vitest.config.ts", "types"],
   "exclude": ["dist", "node_modules"]
 }
diff --git a/types/globals.d.ts b/types/globals.d.ts
new file mode 100644
index 0000000..a9e71ae
--- /dev/null
+++ b/types/globals.d.ts
@@ -0,0 +1,36 @@
+declare module "*.scss" {
+  const content: string;
+  export default content;
+}
+
+declare module "*.inline.ts" {
+  const content: string;
+  export default content;
+}
+
+interface CustomEventMap {
+  nav: CustomEvent<{ url: string }>;
+  prenav: CustomEvent<undefined>;
+  themechange: CustomEvent<{ theme: "light" | "dark" }>;
+  readermodechange: CustomEvent<{ mode: "on" | "off" }>;
+  render: CustomEvent<object>;
+}
+
+interface Document {
+  addEventListener<K extends keyof CustomEventMap>(
+    type: K,
+    listener: (this: Document, ev: CustomEventMap[K]) => void,
+  ): void;
+  removeEventListener<K extends keyof CustomEventMap>(
+    type: K,
+    listener: (this: Document, ev: CustomEventMap[K]) => void,
+  ): void;
+  dispatchEvent<K extends keyof CustomEventMap>(ev: CustomEventMap[K] | UIEvent): void;
+}
+
+interface Window {
+  addCleanup(fn: (...args: unknown[]) => void): void;
+  spaNavigate?(url: URL, isBack: boolean): Promise<void>;
+}
+
+declare const fetchData: Promise<Record<string, unknown>>;