-- Services
local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local TweenService = game:GetService("TweenService")
local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")
local SoundService = game:GetService("SoundService")
local lp = Players.LocalPlayer
local coreGui = game:GetService("CoreGui")
local pg = lp:WaitForChild("PlayerGui", 5)

-- Create GUI with Fallback and Retry
local gui
local function createGui()
    local attempts = 0
    local maxAttempts = 3
    while attempts < maxAttempts do
        local success, result = pcall(function()
            gui = Instance.new("ScreenGui", coreGui)
            gui.Name = "NicholasHub_" .. math.random(100000, 999999)
            gui.ResetOnSpawn = false
            gui.IgnoreGuiInset = true
            gui.DisplayOrder = 100000
            gui.Enabled = true
            gui.ZIndexBehavior = Enum.ZIndexBehavior.Global
            print("✅ GUI created in CoreGui: " .. gui.Name)
        end)
        if success then break end
        warn("⚠️ CoreGui attempt " .. attempts + 1 .. " failed: " .. tostring(result))
        attempts = attempts + 1
        wait(0.5)
    end
    if not gui then
        gui = Instance.new("ScreenGui", pg)
        gui.Name = "NicholasHub_" .. math.random(100000, 999999)
        gui.ResetOnSpawn = false
        gui.IgnoreGuiInset = true
        gui.DisplayOrder = 100000
        gui.Enabled = true
        gui.ZIndexBehavior = Enum.ZIndexBehavior.Global
        print("✅ GUI fallback to PlayerGui: " .. gui.Name)
    end
end
createGui()

-- Notification System
local function showNotification(message, color, duration)
    local notif = Instance.new("TextLabel", gui)
    notif.Size = UDim2.new(0, 300, 0, 50)
    notif.Position = UDim2.new(0.5, -150, 0, 20)
    notif.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
    notif.Text = message
    notif.TextColor3 = color or Color3.fromRGB(255, 255, 255)
    notif.Font = Enum.Font.GothamBold
    notif.TextSize = 16
    notif.TextWrapped = true
    notif.BackgroundTransparency = 0.1
    notif.ZIndex = 100001
    local corner = Instance.new("UICorner", notif)
    corner.CornerRadius = UDim.new(0, 8)
    TweenService:Create(notif, TweenInfo.new(0.3), {Position = UDim2.new(0.5, -150, 0, 10)}):Play()
    wait(duration or 3)
    TweenService:Create(notif, TweenInfo.new(0.3), {Position = UDim2.new(0.5, -150, 0, -50), BackgroundTransparency = 1, TextTransparency = 1}):Play()
    wait(0.3)
    notif:Destroy()
end

-- Sound Effects
local clickSound = Instance.new("Sound", gui)
clickSound.SoundId = "rbxassetid://9120387436"
clickSound.Volume = 0.6

local openSound = Instance.new("Sound", gui)
openSound.SoundId = "rbxassetid://3527390662"
openSound.Volume = 0.8

-- Main Frame
local frame = Instance.new("Frame", gui)
frame.Size = UDim2.new(0, 600, 0, 450)
frame.Position = UDim2.new(0.5, -300, 0.5, -225)
frame.BackgroundColor3 = Color3.fromRGB(25, 25, 25)
frame.BorderSizePixel = 0
frame.Visible = false
frame.Active = true
frame.Draggable = true
frame.ClipsDescendants = true
frame.ZIndex = 100000
local frameCorner = Instance.new("UICorner", frame)
frameCorner.CornerRadius = UDim.new(0, 14)

-- Animated Gradient Background
local gradient = Instance.new("UIGradient", frame)
gradient.Color = ColorSequence.new({
    ColorSequenceKeypoint.new(0, Color3.fromRGB(255, 0, 255)),
    ColorSequenceKeypoint.new(0.5, Color3.fromRGB(0, 255, 255)),
    ColorSequenceKeypoint.new(1, Color3.fromRGB(255, 0, 255))
})
gradient.Rotation = 45
RunService.Heartbeat:Connect(function()
    gradient.Rotation = (gradient.Rotation + 1) % 360
end)

local shadow = Instance.new("ImageLabel", frame)
shadow.Size = UDim2.new(1, 40, 1, 40)
shadow.Position = UDim2.new(0, -20, 0, -20)
shadow.Image = "rbxassetid://1316045217"
shadow.ImageTransparency = 0.2
shadow.BackgroundTransparency = 1
shadow.ZIndex = 99999

-- Title
local title = Instance.new("TextLabel", frame)
title.Size = UDim2.new(1, 0, 0, 60)
title.BackgroundColor3 = Color3.fromRGB(35, 35, 35)
title.Text = "💀 NicholasHub v5.5 🔥"
title.TextColor3 = Color3.fromRGB(255, 255, 255)
title.Font = Enum.Font.GothamBlack
title.TextSize = 28
title.TextStrokeTransparency = 0.6
title.BackgroundTransparency = 0.2
title.ZIndex = 100001
local titleCorner = Instance.new("UICorner", title)
titleCorner.CornerRadius = UDim.new(0, 10)

-- Close Button
local closeBtn = Instance.new("TextButton", frame)
closeBtn.Size = UDim2.new(0, 50, 0, 50)
closeBtn.Position = UDim2.new(1, -60, 0, 5)
closeBtn.BackgroundColor3 = Color3.fromRGB(255, 50, 50)
closeBtn.Text = "X"
closeBtn.TextColor3 = Color3.new(1, 1, 1)
closeBtn.Font = Enum.Font.GothamBold
closeBtn.TextSize = 24
closeBtn.ZIndex = 100001
local closeCorner = Instance.new("UICorner", closeBtn)
closeCorner.CornerRadius = UDim.new(0, 10)

-- Minimize Button
local minimizeBtn = Instance.new("TextButton", frame)
minimizeBtn.Size = UDim2.new(0, 50, 0, 50)
minimizeBtn.Position = UDim2.new(1, -120, 0, 5)
minimizeBtn.BackgroundColor3 = Color3.fromRGB(50, 50, 255)
minimizeBtn.Text = "-"
minimizeBtn.TextColor3 = Color3.new(1, 1, 1)
minimizeBtn.Font = Enum.Font.GothamBold
minimizeBtn.TextSize = 24
minimizeBtn.ZIndex = 100001
local minimizeCorner = Instance.new("UICorner", minimizeBtn)
minimizeCorner.CornerRadius = UDim.new(0, 10)

-- Tab System
local tabNames = {"Obby", "Combat", "Trolling", "Movement", "Visuals", "Teleport", "Exploits", "Settings"}
local tabFrames = {}
local tabBar = Instance.new("Frame", frame)
tabBar.Size = UDim2.new(1, -20, 0, 50)
tabBar.Position = UDim2.new(0, 10, 0, 70)
tabBar.BackgroundTransparency = 1
tabBar.ZIndex = 100001

for i, name in ipairs(tabNames) do
    local tabBtn = Instance.new("TextButton", tabBar)
    tabBtn.Size = UDim2.new(0, 70, 0, 40)
    tabBtn.Position = UDim2.new(0, (i - 1) * 75 + 5, 0, 5)
    tabBtn.BackgroundColor3 = Color3.fromRGB(50, 50, 50)
    tabBtn.Text = name
    tabBtn.TextColor3 = Color3.new(1, 1, 1)
    tabBtn.Font = Enum.Font.GothamBold
    tabBtn.TextSize = 16
    tabBtn.ZIndex = 100001
    local btnCorner = Instance.new("UICorner", tabBtn)
    btnCorner.CornerRadius = UDim.new(0, 8)
    local btnGradient = Instance.new("UIGradient", tabBtn)
    btnGradient.Color = ColorSequence.new({
        ColorSequenceKeypoint.new(0, Color3.fromRGB(100, 100, 100)),
        ColorSequenceKeypoint.new(1, Color3.fromRGB(50, 50, 50))
    })

    local tabFrame = Instance.new("ScrollingFrame", frame)
    tabFrame.Size = UDim2.new(1, -20, 1, -130)
    tabFrame.Position = UDim2.new(0, 10, 0, 130)
    tabFrame.BackgroundTransparency = 1
    tabFrame.Visible = i == 1
    tabFrame.CanvasSize = UDim2.new(0, 0, 0, 0)
    tabFrame.ScrollBarThickness = 8
    tabFrame.ScrollBarImageColor3 = Color3.fromRGB(255, 0, 255)
    tabFrame.ZIndex = 100000
    tabFrames[name] = tabFrame

    local function switchTab()
        clickSound:Play()
        for _, f in pairs(tabFrames) do f.Visible = false end
        tabFrame.Visible = true
        TweenService:Create(tabBtn, TweenInfo.new(0.2), {BackgroundColor3 = Color3.fromRGB(255, 0, 255)}):Play()
        for _, otherBtn in pairs(tabBar:GetChildren()) do
            if otherBtn:IsA("TextButton") and otherBtn ~= tabBtn then
                TweenService:Create(otherBtn, TweenInfo.new(0.2), {BackgroundColor3 = Color3.fromRGB(50, 50, 50)}):Play()
            end
        end
    end
    tabBtn.MouseButton1Click:Connect(switchTab)
    tabBtn.TouchTap:Connect(switchTab)
end

-- Improved Dragging
local dragging = false
local dragStart = nil
local startPos = nil

frame.InputBegan:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch then
        dragging = true
        dragStart = input.Position
        startPos = frame.Position
    end
end)

frame.InputChanged:Connect(function(input)
    if dragging and (input.UserInputType == Enum.UserInputType.MouseMovement or input.UserInputType == Enum.UserInputType.Touch) then
        local delta = input.Position - dragStart
        local newPos = UDim2.new(startPos.X.Scale, startPos.X.Offset + delta.X, startPos.Y.Scale, startPos.Y.Offset + delta.Y)
        TweenService:Create(frame, TweenInfo.new(0.1), {Position = newPos}):Play()
    end
end)

frame.InputEnded:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch then
        dragging = false
    end
end)

-- Add Button Function with Debounce
local buttonStates = {}
local lastClickTime = 0
local debounceTime = 0.3

local function addButton(tabName, text, callback, toggleable)
    local tab = tabFrames[tabName]
    local count = #tab:GetChildren()
    local btn = Instance.new("TextButton", tab)
    btn.Size = UDim2.new(0, 260, 0, 45)
    btn.Position = UDim2.new(0, 10, 0, (count * 50) + 10)
    btn.BackgroundColor3 = Color3.fromRGB(70, 70, 70)
    btn.Text = text
    btn.TextColor3 = Color3.new(1, 1, 1)
    btn.Font = Enum.Font.Gotham
    btn.TextSize = 16
    btn.ZIndex = 100001
    local btnCorner = Instance.new("UICorner", btn)
    btnCorner.CornerRadius = UDim.new(0, 8)
    local btnGradient = Instance.new("UIGradient", btn)
    btnGradient.Color = ColorSequence.new({
        ColorSequenceKeypoint.new(0, Color3.fromRGB(100, 100, 100)),
        ColorSequenceKeypoint.new(1, Color3.fromRGB(70, 70, 70))
    })
    local glow = Instance.new("UIStroke", btn)
    glow.Thickness = 2
    glow.Color = Color3.fromRGB(255, 255, 255)
    glow.Transparency = 1
    tab.CanvasSize = UDim2.new(0, 0, 0, (count + 1) * 50 + 20)

    local isToggled = false
    buttonStates[btn] = isToggled

    local function activate()
        if tick() - lastClickTime < debounceTime then return end
        lastClickTime = tick()
        clickSound:Play()
        if toggleable then
            isToggled = not isToggled
            buttonStates[btn] = isToggled
            btn.BackgroundColor3 = isToggled and Color3.fromRGB(0, 255, 0) or Color3.fromRGB(70, 70, 70)
            btn.Text = isToggled and "[ON] " .. text or text
            glow.Transparency = isToggled and 0.4 or 1
            showNotification(text .. (isToggled and " Activated" or " Deactivated"), isToggled and Color3.fromRGB(0, 255, 0) or Color3.fromRGB(255, 50, 50))
            print("🔘 Button '" .. text .. "' toggled to: " .. tostring(isToggled))
        else
            showNotification(text .. " Triggered", Color3.fromRGB(0, 255, 0))
            print("🔘 Button '" .. text .. "' clicked (non-toggleable)")
        end
        pcall(callback, isToggled)
    end
    btn.MouseButton1Click:Connect(activate)
    btn.TouchTap:Connect(activate)
end

-- Add Slider Function
local function addSlider(tabName, text, min, max, default, callback)
    local tab = tabFrames[tabName]
    local count = #tab:GetChildren()
    local sliderFrame = Instance.new("Frame", tab)
    sliderFrame.Size = UDim2.new(0, 260, 0, 70)
    sliderFrame.Position = UDim2.new(0, 10, 0, (count * 75) + 10)
    sliderFrame.BackgroundColor3 = Color3.fromRGB(50, 50, 50)
    sliderFrame.ZIndex = 100001
    local sliderCorner = Instance.new("UICorner", sliderFrame)
    sliderCorner.CornerRadius = UDim.new(0, 8)

    local label = Instance.new("TextLabel", sliderFrame)
    label.Size = UDim2.new(1, 0, 0, 25)
    label.BackgroundTransparency = 1
    label.Text = text .. ": " .. default
    label.TextColor3 = Color3.new(1, 1, 1)
    label.Font = Enum.Font.Gotham
    label.TextSize = 16
    label.ZIndex = 100001

    local sliderBar = Instance.new("Frame", sliderFrame)
    sliderBar.Size = UDim2.new(0, 240, 0, 20)
    sliderBar.Position = UDim2.new(0, 10, 0, 35)
    sliderBar.BackgroundColor3 = Color3.fromRGB(100, 100, 100)
    sliderBar.ZIndex = 100001
    local barCorner = Instance.new("UICorner", sliderBar)
    barCorner.CornerRadius = UDim.new(0, 6)

    local fill = Instance.new("Frame", sliderBar)
    fill.Size = UDim2.new((default - min) / (max - min), 0, 1, 0)
    fill.BackgroundColor3 = Color3.fromRGB(255, 0, 255)
    fill.ZIndex = 100001
    local fillCorner = Instance.new("UICorner", fill)
    fillCorner.CornerRadius = UDim.new(0, 6)

    local dragging = false
    local function startDrag(input)
        if input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch then
            dragging = true
            clickSound:Play()
        end
    end
    local function endDrag(input)
        if input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch then
            dragging = false
        end
    end
    local function updateSlider(input)
        if dragging and (input.UserInputType == Enum.UserInputType.MouseMovement or input.UserInputType == Enum.UserInputType.Touch) then
            local mouseX = input.Position.X
            local barX = sliderBar.AbsolutePosition.X
            local barWidth = sliderBar.AbsoluteSize.X
            local ratio = math.clamp((mouseX - barX) / barWidth, 0, 1)
            fill.Size = UDim2.new(ratio, 0, 1, 0)
            local value = min + (max - min) * ratio
            label.Text = text .. ": " .. math.floor(value)
            pcall(callback, math.floor(value))
        end
    end
    sliderBar.InputBegan:Connect(startDrag)
    sliderBar.InputEnded:Connect(endDrag)
    UserInputService.InputChanged:Connect(updateSlider)
    tab.CanvasSize = UDim2.new(0, 0, 0, (count + 1) * 75 + 20)
end

-- Player Selector Dropdown
local function addPlayerSelector(tabName)
    local tab = tabFrames[tabName]
    local count = #tab:GetChildren()
    local selectorFrame = Instance.new("Frame", tab)
    selectorFrame.Size = UDim2.new(0, 260, 0, 110)
    selectorFrame.Position = UDim2.new(0, 10, 0, (count * 75) + 10)
    selectorFrame.BackgroundColor3 = Color3.fromRGB(50, 50, 50)
    selectorFrame.ZIndex = 100001
    local selectorCorner = Instance.new("UICorner", selectorFrame)
    selectorCorner.CornerRadius = UDim.new(0, 8)

    local label = Instance.new("TextLabel", selectorFrame)
    label.Size = UDim2.new(1, 0, 0, 25)
    label.BackgroundTransparency = 1
    label.Text = "Select Player:"
    label.TextColor3 = Color3.new(1, 1, 1)
    label.Font = Enum.Font.Gotham
    label.TextSize = 16
    label.ZIndex = 100001

    local dropdownBtn = Instance.new("TextButton", selectorFrame)
    dropdownBtn.Size = UDim2.new(1, -20, 0, 35)
    dropdownBtn.Position = UDim2.new(0, 10, 0, 30)
    dropdownBtn.BackgroundColor3 = Color3.fromRGB(70, 70, 70)
    dropdownBtn.Text = "Select Player..."
    dropdownBtn.TextColor3 = Color3.new(1, 1, 1)
    dropdownBtn.Font = Enum.Font.Gotham
    dropdownBtn.TextSize = 14
    dropdownBtn.ZIndex = 100001
    local btnCorner = Instance.new("UICorner", dropdownBtn)
    btnCorner.CornerRadius = UDim.new(0, 8)

    local dropdownList = Instance.new("ScrollingFrame", selectorFrame)
    dropdownList.Size = UDim2.new(1, -20, 0, 0)
    dropdownList.Position = UDim2.new(0, 10, 0, 65)
    dropdownList.BackgroundColor3 = Color3.fromRGB(60, 60, 60)
    dropdownList.Visible = false
    dropdownList.CanvasSize = UDim2.new(0, 0, 0, 0)
    dropdownList.ScrollBarThickness = 6
    dropdownList.ZIndex = 100002
    local listCorner = Instance.new("UICorner", dropdownList)
    listCorner.CornerRadius = UDim.new(0, 8)

    local gotoBtn = Instance.new("TextButton", selectorFrame)
    gotoBtn.Size = UDim2.new(1, -20, 0, 35)
    gotoBtn.Position = UDim2.new(0, 10, 0, 70)
    gotoBtn.BackgroundColor3 = Color3.fromRGB(70, 70, 70)
    gotoBtn.Text = "Loop Tween Goto"
    gotoBtn.TextColor3 = Color3.new(1, 1, 1)
    gotoBtn.Font = Enum.Font.Gotham
    gotoBtn.TextSize = 14
    gotoBtn.ZIndex = 100001
    local gotoCorner = Instance.new("UICorner", gotoBtn)
    gotoCorner.CornerRadius = UDim.new(0, 8)
    local gotoGlow = Instance.new("UIStroke", gotoBtn)
    gotoGlow.Thickness = 2
    gotoGlow.Color = Color3.fromRGB(255, 255, 255)
    gotoGlow.Transparency = 1

    local isToggled = false
    local loopConnection
    local targetPlayer

    local function updatePlayerList()
        for _, child in pairs(dropdownList:GetChildren()) do
            if child:IsA("TextButton") then child:Destroy() end
        end
        local count = 0
        for _, player in pairs(Players:GetPlayers()) do
            if player ~= lp then
                local btn = Instance.new("TextButton", dropdownList)
                btn.Size = UDim2.new(1, -10, 0, 30)
                btn.Position = UDim2.new(0, 5, 0, count * 35)
                btn.BackgroundColor3 = Color3.fromRGB(80, 80, 80)
                btn.Text = player.Name .. " (" .. player.DisplayName .. ")"
                btn.TextColor3 = Color3.new(1, 1, 1)
                btn.Font = Enum.Font.Gotham
                btn.TextSize = 14
                btn.ZIndex = 100002
                local btnCorner = Instance.new("UICorner", btn)
                btnCorner.CornerRadius = UDim.new(0, 6)
                local function selectPlayer()
                    if tick() - lastClickTime < debounceTime then return end
                    lastClickTime = tick()
                    clickSound:Play()
                    dropdownBtn.Text = player.Name
                    targetPlayer = player
                    dropdownList.Visible = false
                    dropdownList.Size = UDim2.new(1, -20, 0, 0)
                end
                btn.MouseButton1Click:Connect(selectPlayer)
                btn.TouchTap:Connect(selectPlayer)
                count = count + 1
            end
        end
        dropdownList.CanvasSize = UDim2.new(0, 0, 0, count * 35 + 10)
    end

    local function toggleDropdown()
        if tick() - lastClickTime < debounceTime then return end
        lastClickTime = tick()
        clickSound:Play()
        dropdownList.Visible = not dropdownList.Visible
        dropdownList.Size = dropdownList.Visible and UDim2.new(1, -20, 0, math.min(150, #Players:GetPlayers() * 35)) or UDim2.new(1, -20, 0, 0)
        if dropdownList.Visible then updatePlayerList() end
    end
    dropdownBtn.MouseButton1Click:Connect(toggleDropdown)
    dropdownBtn.TouchTap:Connect(toggleDropdown)

    local function startLoop()
        local localRoot = lp.Character and lp.Character:FindFirstChild("HumanoidRootPart")
        local targetRoot = targetPlayer and targetPlayer.Character and targetPlayer.Character:FindFirstChild("HumanoidRootPart")
        if not localRoot or not targetRoot then
            showNotification("Player or character not found!", Color3.fromRGB(255, 50, 50))
            return
        end

        local tweenInfo = TweenInfo.new(0.25, Enum.EasingStyle.Sine, Enum.EasingDirection.InOut)
        local tween = TweenService:Create(localRoot, tweenInfo, {CFrame = targetRoot.CFrame * CFrame.new(0, 3, -6)})
        tween:Play()

        tween.Completed:Connect(function()
            if isToggled then
                startLoop()
            end
        end)
    end

    local function activateGoto()
        if tick() - lastClickTime < debounceTime then return end
        lastClickTime = tick()
        clickSound:Play()
        isToggled = not isToggled
        buttonStates[gotoBtn] = isToggled
        gotoBtn.BackgroundColor3 = isToggled and Color3.fromRGB(0, 255, 0) or Color3.fromRGB(70, 70, 70)
        gotoBtn.Text = isToggled and "[ON] Loop Tween Goto" or "Loop Tween Goto"
        gotoGlow.Transparency = isToggled and 0.4 or 1
        showNotification("Loop Tween Goto " .. (isToggled and "Activated" or "Deactivated"), isToggled and Color3.fromRGB(0, 255, 0) or Color3.fromRGB(255, 50, 50))
        print("🔘 Loop Tween Goto toggled to: " .. tostring(isToggled))

        if isToggled then
            if not targetPlayer then
                showNotification("Select a player first!", Color3.fromRGB(255, 50, 50))
                isToggled = false
                buttonStates[gotoBtn] = false
                gotoBtn.BackgroundColor3 = Color3