Additional width for first element of Column in Flutter

Question

I am trying to achieve two evenly spaced buttons within a Column in Flutter. on Repeating the widgets twice, the first button is Shrunk by a specific width. On inspection, found this.

I'm unable to identify the cause for this unknown width. Here is the code for reference.

import 'package:flutter/material.dart';

class HomeScreen extends StatelessWidget {
  const HomeScreen({
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Theme.of(context).backgroundColor,
      body: SafeArea(
        child: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              Text('Findo', style: Theme.of(context).textTheme.subtitle1),
              Column(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: [
                  ElevatedButton(
                    onPressed: () => {print('pressed')},
                    child: Text(
                      'Store Login',
                      style: Theme.of(context).textTheme.bodyText1,
                    ),
                    style: ElevatedButton.styleFrom(
                        padding: const EdgeInsetsDirectional.fromSTEB(
                            100, 20, 100, 20),
                        primary: Theme.of(context).primaryColor,
                        shape: const RoundedRectangleBorder(
                            borderRadius:
                                BorderRadius.all(Radius.circular(50.0)))),
                  ),
                  ElevatedButton(
                    onPressed: () => {print('pressed')},
                    child: Text(
                      'Customer Login',
                      style: Theme.of(context).textTheme.bodyText1,
                    ),
                    style: ElevatedButton.styleFrom(
                        padding: const EdgeInsetsDirectional.fromSTEB(
                            100, 20, 100, 20),
                        primary: Theme.of(context).accentColor,
                        shape: const RoundedRectangleBorder(
                            borderRadius:
                                BorderRadius.all(Radius.circular(50.0)))),
                  )
                ],
              )
            ],
          ),
        ),
      ),
    );
  }
}