my lib ezzz

--// Clean Universal UI Library (FULL, ALIGNED, SQUARE TABS)
local Lib = {}
Lib.__index = Lib

-- Services
local Players = game:GetService("Players")
local TweenService = game:GetService("TweenService")
local LocalPlayer = Players.LocalPlayer

-- Constants
local ROW_HEIGHT = 36
local PADDING = 12
local SPACING = 8

-- Create Window
function Lib:CreateWindow(cfg)
    local self = setmetatable({}, Lib)

    local gui = Instance.new("ScreenGui")
    gui.Name = "UILibrary"
    gui.ResetOnSpawn = false
    gui.Parent = LocalPlayer:WaitForChild("PlayerGui")
    self.Gui = gui

    local main = Instance.new("Frame", gui)
    main.Size = UDim2.fromOffset(cfg.SizeX or 550, cfg.SizeY or 450)
    main.Position = UDim2.fromScale(0.5,0.5)
    main.AnchorPoint = Vector2.new(0.5,0.5)
    main.BackgroundColor3 = Color3.fromRGB(25,25,30)
    main.BorderSizePixel = 0
    self.Main = main
    Instance.new("UICorner", main).CornerRadius = UDim.new(0,8)

    -- Title bar
    local title = Instance.new("TextLabel", main)
    title.Size = UDim2.new(1,0,0,44)
    title.BackgroundColor3 = Color3.fromRGB(30,30,40)
    title.BorderSizePixel = 0
    title.Text = "  "..(cfg.Title or "UI")
    title.TextXAlignment = Left
    title.Font = Enum.Font.GothamBold
    title.TextSize = 18
    title.TextColor3 = Color3.fromRGB(230,230,240)

    -- Tabs
    local tabBar = Instance.new("Frame", main)
    tabBar.Position = UDim2.new(0,10,0,54)
    tabBar.Size = UDim2.new(0,140,1,-64)
    tabBar.BackgroundTransparency = 1
    self.TabBar = tabBar

    local tabLayout = Instance.new("UIListLayout", tabBar)
    tabLayout.Padding = UDim.new(0,6)

    -- Content
    local content = Instance.new("Frame", main)
    content.Position = UDim2.new(0,160,0,54)
    content.Size = UDim2.new(1,-170,1,-64)
    content.BackgroundTransparency = 1
    self.Content = content

    self.SelectedTab = nil
    return self
end

-- Add Tab (Square)
function Lib:AddTab(name)
    local tab = {}

    local btn = Instance.new("TextButton", self.TabBar)
    btn.Size = UDim2.new(1,0,0,40)
    btn.BackgroundColor3 = Color3.fromRGB(40,40,55)
    btn.Text = name
    btn.Font = Enum.Font.GothamSemibold
    btn.TextSize = 14
    btn.TextColor3 = Color3.fromRGB(210,210,230)
    btn.AutoButtonColor = false

    local page = Instance.new("ScrollingFrame", self.Content)
    page.Size = UDim2.new(1,0,1,0)
    page.ScrollBarThickness = 4
    page.Visible = false
    page.CanvasSize = UDim2.new(0,0,0,0)
    page.BackgroundTransparency = 1

    local pad = Instance.new("UIPadding", page)
    pad.PaddingLeft = UDim.new(0,PADDING)
    pad.PaddingRight = UDim.new(0,PADDING)
    pad.PaddingTop = UDim.new(0,PADDING)

    local layout = Instance.new("UIListLayout", page)
    layout.Padding = UDim.new(0,SPACING)

    layout:GetPropertyChangedSignal("AbsoluteContentSize"):Connect(function()
        page.CanvasSize = UDim2.new(0,0,0,layout.AbsoluteContentSize.Y + 10)
    end)

    btn.MouseButton1Click:Connect(function()
        if self.SelectedTab then
            self.SelectedTab.Page.Visible = false
            self.SelectedTab.Button.BackgroundColor3 = Color3.fromRGB(40,40,55)
        end
        page.Visible = true
        btn.BackgroundColor3 = Color3.fromRGB(60,60,85)
        self.SelectedTab = tab
    end)

    if not self.SelectedTab then
        self.SelectedTab = tab
        page.Visible = true
        btn.BackgroundColor3 = Color3.fromRGB(60,60,85)
    end

    tab.Button = btn
    tab.Page = page

    -- Toggle
    function tab:AddToggle(text, default, cb)
        local row = Instance.new("Frame", page)
        row.Size = UDim2.new(1,0,0,ROW_HEIGHT)
        row.BackgroundTransparency = 1

        local label = Instance.new("TextLabel", row)
        label.Size = UDim2.new(1,-70,1,0)
        label.BackgroundTransparency = 1
        label.Text = text
        label.Font = Enum.Font.Gotham
        label.TextSize = 14
        label.TextXAlignment = Left
        label.TextColor3 = Color3.fromRGB(230,230,240)

        local toggle = Instance.new("TextButton", row)
        toggle.Size = UDim2.fromOffset(56,24)
        toggle.Position = UDim2.new(1,-56,0.5,-12)
        toggle.Font = Enum.Font.GothamBold
        toggle.TextSize = 12
        toggle.TextColor3 = Color3.new(1,1,1)
        toggle.AutoButtonColor = false

        local state = default
        local function draw()
            toggle.Text = state and "ON" or "OFF"
            toggle.BackgroundColor3 = state and Color3.fromRGB(80,200,120) or Color3.fromRGB(70,70,90)
        end
        draw()

        toggle.MouseButton1Click:Connect(function()
            state = not state
            draw()
            if cb then cb(state) end
        end)
    end

    -- Slider
    function tab:AddSlider(text,min,max,default,cb)
        local row = Instance.new("Frame", page)
        row.Size = UDim2.new(1,0,0,ROW_HEIGHT+10)
        row.BackgroundTransparency = 1

        local label = Instance.new("TextLabel", row)
        label.Size = UDim2.new(1,0,0,18)
        label.BackgroundTransparency = 1
        label.Text = text.." ("..default..")"
        label.Font = Enum.Font.Gotham
        label.TextSize = 13
        label.TextXAlignment = Left
        label.TextColor3 = Color3.fromRGB(220,220,235)

        local bar = Instance.new("Frame", row)
        bar.Position = UDim2.new(0,0,0,24)
        bar.Size = UDim2.new(1,0,0,6)
        bar.BackgroundColor3 = Color3.fromRGB(60,60,80)

        local fill = Instance.new("Frame", bar)
        fill.Size = UDim2.new((default-min)/(max-min),0,1,0)
        fill.BackgroundColor3 = Color3.fromRGB(120,140,255)

        bar.InputBegan:Connect(function(i)
            if i.UserInputType == Enum.UserInputType.MouseButton1 then
                local x = (i.Position.X - bar.AbsolutePosition.X)/bar.AbsoluteSize.X
                local val = math.clamp(math.floor(min + (max-min)*x),min,max)
                fill.Size = UDim2.new((val-min)/(max-min),0,1,0)
                label.Text = text.." ("..val..")"
                if cb then cb(val) end
            end
        end)
    end

    -- Button
    function tab:AddButton(text,cb)
        local btn = Instance.new("TextButton", page)
        btn.Size = UDim2.new(1,0,0,ROW_HEIGHT)
        btn.BackgroundColor3 = Color3.fromRGB(70,70,95)
        btn.Text = text
        btn.Font = Enum.Font.GothamSemibold
        btn.TextSize = 14
        btn.TextColor3 = Color3.new(1,1,1)
        btn.AutoButtonColor = false
        btn.MouseButton1Click:Connect(function()
            if cb then cb() end
        end)
    end

    -- Input
    function tab:AddInput(text,placeholder,cb)
        local box = Instance.new("TextBox", page)
        box.Size = UDim2.new(1,0,0,ROW_HEIGHT)
        box.BackgroundColor3 = Color3.fromRGB(45,45,60)
        box.PlaceholderText = placeholder
        box.Text = ""
        box.Font = Enum.Font.Gotham
        box.TextSize = 14
        box.TextColor3 = Color3.fromRGB(230,230,240)
        box.FocusLost:Connect(function()
            if cb then cb(box.Text) end
        end)
    end

    -- Dropdown
    function tab:AddDropdown(text,options,default,cb)
        local holder = Instance.new("Frame", page)
        holder.Size = UDim2.new(1,0,0,ROW_HEIGHT)
        holder.ClipsDescendants = true
        holder.BackgroundTransparency = 1

        local current = default or options[1]
        local open = false

        local main = Instance.new("TextButton", holder)
        main.Size = UDim2.new(1,0,0,ROW_HEIGHT)
        main.BackgroundColor3 = Color3.fromRGB(45,45,65)
        main.Text = text..": "..current
        main.Font = Enum.Font.Gotham
        main.TextSize = 14
        main.TextColor3 = Color3.fromRGB(230,230,240)
        main.AutoButtonColor = false

        local list = Instance.new("Frame", holder)
        list.Position = UDim2.new(0,0,0,ROW_HEIGHT)
        list.BackgroundColor3 = Color3.fromRGB(40,40,55)
        list.Size = UDim2.new(1,0,0,#options*28)
        list.Visible = false

        local lay = Instance.new("UIListLayout", list)

        for _,opt in ipairs(options) do
            local o = Instance.new("TextButton", list)
            o.Size = UDim2.new(1,0,0,28)
            o.Text = opt
            o.Font = Enum.Font.Gotham
            o.TextSize = 13
            o.TextColor3 = Color3.fromRGB(220,220,235)
            o.BackgroundTransparency = 1
            o.MouseButton1Click:Connect(function()
                current = opt
                main.Text = text..": "..opt
                list.Visible = false
                holder.Size = UDim2.new(1,0,0,ROW_HEIGHT)
                open = false
                if cb then cb(opt) end
            end)
        end

        main.MouseButton1Click:Connect(function()
            open = not open
            list.Visible = open
            holder.Size = open
                and UDim2.new(1,0,0,ROW_HEIGHT + (#options*28))
                or UDim2.new(1,0,0,ROW_HEIGHT)
        end)
    end

    return tab
end

return Lib