diff --git a/src/form/types/field.type.ts b/src/form/types/field.type.ts
index f50e03b..dbf0992 100644
--- a/src/form/types/field.type.ts
+++ b/src/form/types/field.type.ts
@@ -1,8 +1,11 @@
 // ─── Parent types ───
-export type ParentKeyType = "input" | "textarea" | "select" | "multiselect" | "checkbox"|"button";
+export type ParentKeyType = "input" | "textarea" | "select" | "multiselect" | "checkbox"|"button"|"radio";
 
 // ─── Child types (only for "input") ───
-export type InputSubType = "text" | "email" | "number" | "password" | "button" | "color" | "date" | "datetime-local" | "file" | "hidden" | "image" | "month" | "radio" | "range" | "reset" | "search" | "submit" | "tel" | "time" | "url" | "week" ;
+export type InputSubType = "text" | "email" | "number" | "password" | "color" | "date" | "datetime-local" | "file" | "hidden" | "image" | "month"  | "range" | "reset" | "search" | "submit" | "tel" | "time" | "url" | "week" ;
+
+// button subtypes — maps to HTML <input type="..."> or <button type="...">
+export type ButtonSubType = "button" | "submit" | "reset" | "image";
 
 
 export const PARENT_TYPE_LABELS: Readonly<Record<ParentKeyType, string>> = {
@@ -12,6 +15,7 @@ export const PARENT_TYPE_LABELS: Readonly<Record<ParentKeyType, string>> = {
   multiselect: "Multiselect",
   checkbox: "Checkbox",
   button:"button",
+  radio:"Radio"
 } as const;
 
 export const INPUT_SUB_TYPE_LABELS: Readonly<Record<InputSubType, string>> = {
@@ -19,7 +23,6 @@ export const INPUT_SUB_TYPE_LABELS: Readonly<Record<InputSubType, string>> = {
   email: "Email",
   number: "Number",
   password: "Password",
-  button: "Button",
   color: "Color Picker",
   date: "Date",
   "datetime-local" : "Date & Time",
@@ -27,7 +30,6 @@ export const INPUT_SUB_TYPE_LABELS: Readonly<Record<InputSubType, string>> = {
   hidden: "Hidden",
   image: "Image Button",
   month: "Month",
-  radio: "Radio",
   range: "Range Slider",
   reset: "Reset Button",
   search: "Search",
@@ -38,6 +40,14 @@ export const INPUT_SUB_TYPE_LABELS: Readonly<Record<InputSubType, string>> = {
   week: "Week",
 } as const;
 
+export const BUTTON_SUB_TYPE_LABELS: Readonly<Record<ButtonSubType, string>> = {
+  button: "Button",
+  submit: "Submit",
+  reset: "Reset",
+  image: "Image",
+} as const;
+
 export const PARENT_TYPE_KEYS = Object.keys(PARENT_TYPE_LABELS) as ParentKeyType[];
 export const INPUT_SUB_TYPE_KEYS = Object.keys(INPUT_SUB_TYPE_LABELS) as InputSubType[];
+export const BUTTON_SUB_TYPE_KEYS = Object.keys(BUTTON_SUB_TYPE_LABELS) as ButtonSubType[];