--===============================================================
-- UNIVERSAL DEVELOPER HUB — SYNAPSE-STYLE — STRONGEST DEMON
--===============================================================

local Players = game:GetService("Players")
local UIS = game:GetService("UserInputService")
local RunService = game:GetService("RunService")
local TweenService = game:GetService("TweenService")
local LP = Players.LocalPlayer
local Mouse = LP:GetMouse()

----------------------------------------------------------------
-- SOUND SYSTEM
----------------------------------------------------------------
local SFX = Instance.new("Folder", LP:WaitForChild("PlayerGui"))
SFX.Name = "HubSFX"

local ClickSFX = Instance.new("Sound", SFX)
ClickSFX.SoundId = "rbxassetid://15675059323"
ClickSFX.Volume = 1

local CloseSFX = Instance.new("Sound", SFX)
CloseSFX.SoundId = "rbxassetid://154157386"
CloseSFX.Volume = 1

local function PlayClick() ClickSFX:Play() end
local function PlayClose() CloseSFX:Play() end

----------------------------------------------------------------
-- GUI SETUP
----------------------------------------------------------------
local gui = Instance.new("ScreenGui", LP:WaitForChild("PlayerGui"))
gui.Name = "DevHub"
gui.IgnoreGuiInset = true
gui.ResetOnSpawn = false

local main = Instance.new("Frame", gui)
main.Size = UDim2.new(0, 560, 0, 350)
main.Position = UDim2.new(0.5, -280, 0.5, -175)
main.BackgroundColor3 = Color3.fromRGB(20,20,20)
main.Active = true
main.Draggable = true
Instance.new("UICorner", main).CornerRadius = UDim.new(0, 12)

----------------------------------------------------------------
-- TOP BAR
----------------------------------------------------------------
local top = Instance.new("Frame", main)
top.Size = UDim2.new(1,0,0,38)
top.BackgroundColor3 = Color3.fromRGB(35,35,35)
Instance.new("UICorner", top).CornerRadius = UDim.new(0,12)

local title = Instance.new("TextLabel", top)
title.BackgroundTransparency = 1
title.Text = "UNIVERSAL DEVELOPER HUB"
title.Font = Enum.Font.GothamBold
title.TextColor3 = Color3.fromRGB(255,255,255)
title.TextSize = 18
title.Position = UDim2.new(0,14,0,0)
title.Size = UDim2.new(1,-50,1,0)

local close = Instance.new("TextButton", top)
close.Size = UDim2.new(0,34,0,34)
close.Position = UDim2.new(1,-40,0,2)
close.BackgroundColor3 = Color3.fromRGB(180,40,40)
close.Text = "X"
close.Font = Enum.Font.GothamBold
close.TextColor3 = Color3.new(1,1,1)
close.TextSize = 18
Instance.new("UICorner", close).CornerRadius = UDim.new(0,9)

close.MouseButton1Click:Connect(function()
    PlayClose()
    gui.Enabled = false
end)

----------------------------------------------------------------
-- SIDEBAR
----------------------------------------------------------------
local sidebar = Instance.new("Frame", main)
sidebar.Size = UDim2.new(0,130,1,-38)
sidebar.Position = UDim2.new(0,0,0,38)
sidebar.BackgroundColor3 = Color3.fromRGB(28,28,28)
Instance.new("UICorner", sidebar).CornerRadius = UDim.new(0,12)

local listLayout = Instance.new("UIListLayout", sidebar)
listLayout.Padding = UDim.new(0,10)
listLayout.HorizontalAlignment = Enum.HorizontalAlignment.Center
listLayout.SortOrder = Enum.SortOrder.LayoutOrder

local Tabs = {}
local Pages = {}

----------------------------------------------------------------
-- TAB CREATION FUNCTION
----------------------------------------------------------------
local function CreateTab(name)
    local tab = Instance.new("TextButton", sidebar)
    tab.Size = UDim2.new(0.85,0,0,32)
    tab.BackgroundColor3 = Color3.fromRGB(55,55,55)
    tab.Font = Enum.Font.Gotham
    tab.Text = name
    tab.TextColor3 = Color3.new(1,1,1)
    tab.TextSize = 14
    Instance.new("UICorner", tab).CornerRadius = UDim.new(0,10)

    local page = Instance.new("ScrollingFrame", main)
    page.Size = UDim2.new(1,-140,1,-48)
    page.Position = UDim2.new(0,140,0,45)
    page.BackgroundTransparency = 1
    page.ScrollBarThickness = 6
    page.Visible = false

    local list = Instance.new("UIListLayout", page)
    list.Padding = UDim.new(0,10)
    list.SortOrder = Enum.SortOrder.LayoutOrder

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

    Tabs[name] = tab
    Pages[name] = page

    tab.MouseButton1Click:Connect(function()
        PlayClick()
        for _, p in pairs(Pages) do p.Visible = false end
        for _, t in pairs(Tabs) do t.BackgroundColor3 = Color3.fromRGB(55,55,55) end
        page.Visible = true
        tab.BackgroundColor3 = Color3.fromRGB(150,40,40)
    end)

    return page
end

----------------------------------------------------------------
-- CREATE TABS
----------------------------------------------------------------
local MainPage = CreateTab("Main")
local PlayerPage = CreateTab("Player")
local MiscPage = CreateTab("Misc")
local SettingsPage = CreateTab("Settings")
Pages["Main"].Visible = true
Tabs["Main"].BackgroundColor3 = Color3.fromRGB(150,40,40)

----------------------------------------------------------------
-- BUTTON MAKER
----------------------------------------------------------------
local function CreateButton(parent, text, callback)
    local b = Instance.new("TextButton", parent)
    b.Size = UDim2.new(1,-12,0,36)
    b.BackgroundColor3 = Color3.fromRGB(60,60,60)
    b.Text = text
    b.Font = Enum.Font.GothamBold
    b.TextColor3 = Color3.new(1,1,1)
    b.TextSize = 14
    Instance.new("UICorner", b).CornerRadius = UDim.new(0,10)

    b.MouseButton1Click:Connect(function()
        PlayClick()
        callback()
    end)
end

----------------------------------------------------------------
-- MAIN TAB: DEV FEATURES
----------------------------------------------------------------

local characterVisibility = true
local devFly = false
local devNoclip = false

-- Toggle invisibility (Transparency)
CreateButton(MainPage, "Toggle Invisibility", function()
    characterVisibility = not characterVisibility

    local char = LP.Character
    if char then
        for _, v in ipairs(char:GetDescendants()) do
            if v:IsA("BasePart") then
                v.Transparency = characterVisibility and 0 or 1
            end
        end
    end
end)

-- Toggle Humanoid visibility (safe)
CreateButton(MainPage, "Hide / Show Humanoid", function()
    local h = LP.Character:FindFirstChild("Humanoid")
    if h then
        h.DisplayDistanceType = (h.DisplayDistanceType == Enum.HumanoidDisplayDistanceType.None)
            and Enum.HumanoidDisplayDistanceType.Viewer
            or Enum.HumanoidDisplayDistanceType.None
    end
end)

-- Developer Fly
CreateButton(MainPage, "Fly (Dev)", function()
    devFly = not devFly
end)

RunService.RenderStepped:Connect(function()
    if devFly then
        local char = LP.Character
        local hrp = char:FindFirstChild("HumanoidRootPart")
        if hrp then
            local cam = workspace.CurrentCamera
            local vel = Vector3.new()

            if UIS:IsKeyDown(Enum.KeyCode.W) then vel += cam.CFrame.LookVector end
            if UIS:IsKeyDown(Enum.KeyCode.S) then vel -= cam.CFrame.LookVector end
            if UIS:IsKeyDown(Enum.KeyCode.A) then vel -= cam.CFrame.RightVector end
            if UIS:IsKeyDown(Enum.KeyCode.D) then vel += cam.CFrame.RightVector end

            hrp.Velocity = vel * 60
        end
    end
end)

-- Developer Noclip
CreateButton(MainPage, "Noclip (Dev)", function()
    devNoclip = not devNoclip
end)

RunService.Stepped:Connect(function()
    if devNoclip then
        local char = LP.Character
        if char then
            for _, v in ipairs(char:GetDescendants()) do
                if v:IsA("BasePart") then v.CanCollide = false end
            end
        end
    else
        local char = LP.Character
        if char then
            for _, v in ipairs(char:GetDescendants()) do
                if v:IsA("BasePart") then v.CanCollide = true end
            end
        end
    end
end)

----------------------------------------------------------------
-- PLAYER TAB
----------------------------------------------------------------
CreateButton(PlayerPage, "WalkSpeed +10", function()
    local hum = LP.Character and LP.Character:FindFirstChild("Humanoid")
    if hum then hum.WalkSpeed += 10 end
end)

CreateButton(PlayerPage, "JumpPower +10", function()
    local hum = LP.Character and LP.Character:FindFirstChild("Humanoid")
    if hum then hum.JumpPower += 10 end
end)

CreateButton(PlayerPage, "Reset Character", function()
    LP.Character:BreakJoints()
end)

----------------------------------------------------------------
-- MISC TAB
----------------------------------------------------------------
CreateButton(MiscPage, "Flashlight Toggle", function()
    local light = Instance.new("SpotLight")
    local head = LP.Character and LP.Character:FindFirstChild("Head")
    if head then
        light.Brightness = 2
        light.Range = 16
        light.Angle = 60
        light.Parent = head
        light.Enabled = not light.Enabled
    end
end)

CreateButton(MiscPage, "Set Waypoint", function()
    _G.Waypoint = LP.Character:FindFirstChild("HumanoidRootPart").Position
end)

CreateButton(MiscPage, "Teleport to Waypoint", function()
    if _G.Waypoint then
        LP.Character:FindFirstChild("HumanoidRootPart").CFrame =
            CFrame.new(_G.Waypoint)
    end
end)

----------------------------------------------------------------
-- SETTINGS TAB (THEMES)
----------------------------------------------------------------

local Themes = {
    ["Demon Red"] = {main = Color3.fromRGB(60,0,0), side = Color3.fromRGB(100,0,0)},
    ["Shadow Black"] = {main = Color3.fromRGB(10,10,10), side = Color3.fromRGB(25,25,25)},
    ["Neon Blue"] = {main = Color3.fromRGB(0,40,100), side = Color3.fromRGB(0,80,160)},
    ["Hacker Green"] = {main = Color3.fromRGB(0,50,0), side = Color3.fromRGB(0,90,0)},
    ["Light Mode"] = {main = Color3.fromRGB(220,220,220), side = Color3.fromRGB(240,240,240)},
    ["Galaxy Purple"] = {main = Color3.fromRGB(60,0,80), side = Color3.fromRGB(100,0,130)},
    ["Sunset Orange"] = {main = Color3.fromRGB(120,40,0), side = Color3.fromRGB(160,60,0)},
    ["Bubblegum Pink"] = {main = Color3.fromRGB(255,80,160), side = Color3.fromRGB(255,120,180)},
    ["Frost Blue"] = {main = Color3.fromRGB(130,160,255), side = Color3.fromRGB(170,200,255)},
    ["Gold Premium"] = {main = Color3.fromRGB(150,120,0), side = Color3.fromRGB(200,150,0)}
}

for name, colors in pairs(Themes) do
    CreateButton(SettingsPage, "Theme: "..name, function()
        main.BackgroundColor3 = colors.main
        sidebar.BackgroundColor3 = colors.side
    end)
end

----------------------------------------------------------------
-- RightShift Toggle
----------------------------------------------------------------
UIS.InputBegan:Connect(function(key, gp)
    if gp then return end
    if key.KeyCode == Enum.KeyCode.RightShift then
        main.Visible = not main.Visible
    end
end)