-- pattern, then text, then tmkx ma.
local lp = game:GetService("Players").LocalPlayer
local rs = game:GetService("ReplicatedStorage")
local uis = game:GetService("UserInputService")

-- 1. THE FONT (ᴀʙᴄᴅᴇ)
local function toImgFont(text)
    local map = {["a"]="ᴀ", ["b"]="ʙ", ["c"]="ᴄ", ["d"]="ᴅ", ["e"]="ᴇ", ["f"]="ғ", ["g"]="ɢ", ["h"]="ʜ", ["i"]="ɪ", ["j"]="ᴊ", ["k"]="ᴋ", ["l"]="ʟ", ["m"]="ᴍ", ["n"]="ɴ", ["o"]="ᴏ", ["p"]="ᴘ", ["q"]="ǫ", ["r"]="ʀ", ["s"]="s", ["t"]="ᴛ", ["u"]="ᴜ", ["v"]="ᴠ", ["w"]="ᴡ", ["x"]="x", ["y"]="ʏ", ["z"]="ᴢ"}
    local res = ""
    for i = 1, #text do
        local c = text:sub(i,i):lower()
        res = res .. (map[c] or text:sub(i,i))
    end
    return res
end

-- 2. GUI SETUP
if lp.PlayerGui:FindFirstChild("SamDev_Secret") then lp.PlayerGui.SamDev_Secret:Destroy() end
local sg = Instance.new("ScreenGui", lp.PlayerGui)
sg.Name = "SamDev_Secret"
sg.ResetOnSpawn = false

local main = Instance.new("Frame", sg)
main.Size = UDim2.new(0, 400, 0, 300); main.Position = UDim2.new(0.5, -200, 0.4, 0)
main.BackgroundColor3 = Color3.fromRGB(12, 12, 12); main.Active = true; main.Draggable = true
Instance.new("UICorner", main)

local stroke = Instance.new("UIStroke", main)
stroke.Thickness = 3
task.spawn(function()
    while task.wait(0.05) do stroke.Color = Color3.fromHSV(tick() % 5 / 5, 1, 1) end
end)

local scroll = Instance.new("ScrollingFrame", main)
scroll.Size = UDim2.new(0.9, 0, 0.65, 0); scroll.Position = UDim2.new(0.05, 0, 0.1, 0)
scroll.BackgroundTransparency = 1; scroll.AutomaticCanvasSize = "Y"
Instance.new("UIListLayout", scroll).VerticalAlignment = "Bottom"

local input = Instance.new("TextBox", main)
input.Size = UDim2.new(0.9, 0, 0, 45); input.Position = UDim2.new(0.05, 0, 0.8, 0)
input.PlaceholderText = "PRIVATE SYNC..."; input.Text = ""
input.BackgroundColor3 = Color3.fromRGB(25, 25, 25); input.TextColor3 = Color3.new(1,1,1)
Instance.new("UICorner", input)

-- 3. THE "HIDDEN" SYNC LOGIC
-- We use a hidden folder in the game to pass text without chatting
local function addLine(name, msg)
    local l = Instance.new("TextLabel", scroll)
    l.Size = UDim2.new(1, 0, 0, 25); l.BackgroundTransparency = 1
    l.TextColor3 = Color3.new(1, 1, 1); l.TextXAlignment = "Left"; l.RichText = true
    l.Text = "<b><font color='#00ff00'>[" .. toImgFont(name) .. "]:</font></b> " .. msg
    scroll.CanvasPosition = Vector2.new(0, 99999)
end

-- This detects when OTHER people use the "UpdateName" remote (Hidden Sync)
-- This is how friends see your msg in the GUI only!
for _, v in pairs(game:GetDescendants()) do
    if v:IsA("RemoteEvent") and (v.Name == "PrepareCharacter" or v.Name == "UpdateName") then
        v.OnClientEvent:Connect(function(mode, data)
            if mode == "UpdateName" and data:find("||") then
                local split = string.split(data, "||")
                addLine(split[1], split[2])
            end
        end)
    end
end

-- 4. THE SENDER (Doesn't use SendAsync!)
input.FocusLost:Connect(function(enter)
    if enter and input.Text ~= "" then
        local msg = input.Text
        local myName = lp.DisplayName or lp.Name
        
        -- Show for you
        addLine(myName, msg)
        
        -- Send to others HIDDEN (using the Brookhaven name remote as a carrier)
        pcall(function()
            local remote = rs:FindFirstChild("PrepareCharacter", true)
            if remote then
                -- We hide the message inside the Name parameter so it doesn't show in chat
                remote:FireServer("UpdateName", myName .. "||" .. msg)
            end
        end)
        
        input.Text = ""
    end
end)

-- 5. BIO FORCE
task.spawn(function()
    while task.wait(5) do
        pcall(function()
            local remote = rs:FindFirstChild("PrepareCharacter", true)
            if remote then
                remote:FireServer("UpdateDescription", toImgFont(lp.DisplayName))
            end
        end)
    end
end)

-- tmkx ma.
addLine("SYSTEM", "Private Sync Active. Not showing in Roblox Chat.")