Why does my Blazor form not get any value from input field?

I have been using Blazor and I encountered an issue could not find any solution. I have been trying to add text into input fields but it's not updating.

@page "/"<PageTitle>Form</PageTitle><h1 style="text-align:center">Form & Validation</h1><EditForm Model="person" OnValidSubmit="FormSubmit" FormName="Form"><DataAnnotationsValidator /><label>Name :</label><InputText id="name" @bind-Value="person.Name" /><br /><br /><button type="submit" class="btn btn-primary">submit</button></EditForm><p>New Name : @person.Name</p>@code {    Person person = new Person();    string displaySuccess, styleColor;    private void FormSubmit()    {        displaySuccess = "Worked!";        styleColor = "Green";    }    class Person    {        public string? Name { get; set; }    }}

I tried

private void FormSubmit(){        if (person != null)        {            displaySuccess = "Worked!";            styleColor = "Green";        }        else        {            displaySuccess = "Wrong!";            styleColor = "red";        }}

Then it always shows "Worked!" even though it was null what is happening?

I tried looking up on Google didn't find anything dunno why my value is not getting updated