comp

lib/components/gender_dropdown.dart

@@ -34,7 +34,7 @@ class _GenderDropdownState extends State<GenderDropdown> {
       child: DropdownButtonHideUnderline(
         child: DropdownButton<String>(
           isExpanded: true,
-          value: controller.text,
+          value: controller.text == '' ? null : controller.text,
           hint: const Text(
             'Selecciona tu género',
             style: TextStyle(fontSize: 16.0),

lib/components/general_checkbox.dart

@@ -0,0 +1,28 @@
+import 'package:flutter/material.dart';
+
+class GeneralCheckbox extends StatelessWidget {
+  final String text;
+  final bool initialValue;
+  final Function(bool) onChanged;
+
+  const GeneralCheckbox({
+    super.key,
+    required this.text,
+    required this.initialValue,
+    required this.onChanged,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return CheckboxListTile(
+      title: Text(
+        text,
+        style: const TextStyle(fontSize: 15),
+      ),
+      value: initialValue,
+      onChanged: (value) {
+        onChanged(value!);
+      },
+    );
+  }
+}

lib/components/general_primary_button.dart

@@ -1,10 +1,40 @@
 import 'package:flutter/material.dart';
 
 class GeneralPrimaryButton extends StatelessWidget {
-  const GeneralPrimaryButton({super.key});
+  final VoidCallback onPressed;
+  final String label;
+  final bool isEnabled;
+
+  const GeneralPrimaryButton({
+    super.key,
+    required this.onPressed,
+    required this.label,
+    this.isEnabled = true,
+  });
 
   @override
   Widget build(BuildContext context) {
-    return Container();
+    return ElevatedButton(
+      onPressed: isEnabled ? onPressed : null,
+      style: ElevatedButton.styleFrom(
+        backgroundColor: Theme.of(context).colorScheme.primary,
+        elevation: 0,
+        minimumSize: Size(
+          MediaQuery.of(context).size.width * 0.5,
+          50,
+        ),
+        shape: const RoundedRectangleBorder(
+          borderRadius: BorderRadius.all(Radius.circular(50)),
+        ),
+      ),
+      child: Text(
+        label,
+        style: TextStyle(
+          color: isEnabled ? Colors.white : Colors.black,
+          fontWeight: FontWeight.bold,
+          fontSize: 16,
+        ),
+      ),
+    );
   }
 }