-- In ServerScriptService, add to GameController:

local buyItemRemote = Instance.new("RemoteEvent")
buyItemRemote.Name = "BuyItem"
buyItemRemote.Parent = ReplicatedStorage

buyItemRemote.OnServerEvent:Connect(function(player, itemName)
    local data = playerData[player.UserId]
    if not data then return end
    
    local prices = {
        ["Speed Boost"] = 500,
        ["Shield"] = 1000,
        ["Magnet"] = 750,
        ["Double Money"] = 2000,
    }
    
    local price = prices[itemName]
    if price and data.money >= price then
        data.money = data.money - price
        
        -- Apply power-up
        if itemName == "Speed Boost" then
            local character = player.Character
            if character then
                local humanoid = character:FindFirstChildOfClass("Humanoid")
                if humanoid then
                    humanoid.WalkSpeed = humanoid.WalkSpeed * 1.2
                    task.wait(30)
                    humanoid.WalkSpeed = humanoid.WalkSpeed / 1.2
                end
            end
        elseif itemName == "Double Money" then
            -- Double money generation for 60 seconds
            for _, brainrot in ipairs(data.brainrots) do
                brainrot.moneyPerSec = brainrot.moneyPerSec * 2
            end
            task.wait(60)
            for _, brainrot in ipairs(data.brainrots) do
                brainrot.moneyPerSec = brainrot.moneyPerSec / 2
            end
        end
        
        -- Notify success
        local remote = ReplicatedStorage:FindFirstChild("ItemPurchased")
        if remote then
            remote:FireClient(player, itemName, true)
        end
    else
        -- Not enough money
        local remote = ReplicatedStorage:FindFirstChild("ItemPurchased")
        if remote then
            remote:FireClient(player, itemName, false)
        end
    end
end)