How to Avoid Multiple Nested If-Else Statements Using Guard Clause

Program.cs

namespace Programs
{
    internal class Program
    {
        static void Main(string[] args)
        {
            UserLogIn(true, true, true);
        }
        
        private static void UserLogIn(bool hasUsername, bool hasPassword, bool isAdmin)
        {
            if (!hasUsername)
            {
                Console.WriteLine("No Username Found.");
                return;
            }

            Console.WriteLine("Username");
            if (!hasPassword)
            {
                Console.WriteLine("No Password Found.");
                return;
            }

            Console.WriteLine("Password");
            if (!isAdmin)
            {
                GoToWelcomePage();
                return;
            }

            GoToAdminPage();
        }

        private static void GoToWelcomePage()
        {
            Console.WriteLine("Welcome Page");
        }

        private static void GoToAdminPage()
        {
            Console.WriteLine("Admin Page");
        }
    }
}