-- Create a simple GUI
local player = game:GetService("Players").LocalPlayer
local screenGui = Instance.new("ScreenGui", game.CoreGui)
local frame = Instance.new("Frame", screenGui)
local title = Instance.new("TextLabel", frame)
local textBox = Instance.new("TextBox", frame)
local button = Instance.new("TextButton", frame)
local uiCornerFrame = Instance.new("UICorner", frame)
local uiCornerTextBox = Instance.new("UICorner", textBox)
local uiCornerButton = Instance.new("UICorner", button)

-- Frame Properties
screenGui.Name = "SpeedBoostGUI"
frame.Size = UDim2.new(0, 300, 0, 200)
frame.Position = UDim2.new(0.5, -150, 0.5, -100)
frame.BackgroundColor3 = Color3.fromRGB(45, 45, 45)
frame.AnchorPoint = Vector2.new(0.5, 0.5)
frame.Active = true
frame.Draggable = true

-- Title Properties
title.Size = UDim2.new(1, 0, 0, 40)
title.Position = UDim2.new(0, 0, 0, 0)
title.BackgroundColor3 = Color3.fromRGB(35, 35, 35)
title.TextColor3 = Color3.fromRGB(255, 255, 255)
title.Text = "Speed Boost GUI"
title.TextScaled = true
title.Font = Enum.Font.GothamBold
title.BorderSizePixel = 0

-- TextBox Properties
textBox.Size = UDim2.new(0.8, 0, 0, 40)
textBox.Position = UDim2.new(0.1, 0, 0.4, 0)
textBox.PlaceholderText = "Enter Speed"
textBox.Text = ""
textBox.TextScaled = true
textBox.BackgroundColor3 = Color3.fromRGB(60, 60, 60)
textBox.TextColor3 = Color3.fromRGB(255, 255, 255)
textBox.Font = Enum.Font.Gotham
textBox.BorderSizePixel = 0

-- Button Properties
button.Size = UDim2.new(0.8, 0, 0, 40)
button.Position = UDim2.new(0.1, 0, 0.7, 0)
button.Text = "Set Speed"
button.TextScaled = true
button.BackgroundColor3 = Color3.fromRGB(70, 130, 180)
button.TextColor3 = Color3.fromRGB(255, 255, 255)
button.Font = Enum.Font.GothamBold
button.BorderSizePixel = 0

-- Function to update speed
local function updateSpeed()
    local speed = tonumber(textBox.Text)
    if speed then
        local character = player.Character or player.CharacterAdded:Wait()
        local humanoid = character:WaitForChild("Humanoid")
        humanoid.WalkSpeed = speed
        print("Speed set to: " .. speed)
    else
        warn("Invalid speed entered. Please enter a valid number.")
    end
end

-- Connect button click to update speed
button.MouseButton1Click:Connect(updateSpeed)