local Players = game:GetService("Players")
local RunService = game:GetService("RunService")

local function createRainbowName(player, character)
	local head = character:WaitForChild("Head", 10)
	if not head then return end

	-- Remove an old tag if one exists
	local oldTag = head:FindFirstChild("RainbowName")
	if oldTag then
		oldTag:Destroy()
	end

	local billboard = Instance.new("BillboardGui")
	billboard.Name = "RainbowName"
	billboard.Adornee = head
	billboard.Size = UDim2.new(0, 200, 0, 50)
	billboard.StudsOffset = Vector3.new(0, 2.8, 0)
	billboard.AlwaysOnTop = true
	billboard.Parent = head

	local nameLabel = Instance.new("TextLabel")
	nameLabel.Size = UDim2.fromScale(1, 1)
	nameLabel.BackgroundTransparency = 1
	nameLabel.Text = player.DisplayName
	nameLabel.TextScaled = true
	nameLabel.Font = Enum.Font.GothamBold
	nameLabel.TextStrokeTransparency = 0.3
	nameLabel.Parent = billboard

	-- Smooth rainbow animation
	local connection
	connection = RunService.Heartbeat:Connect(function()
		if not billboard.Parent then
			connection:Disconnect()
			return
		end

		local hue = (os.clock() * 0.25) % 1
		nameLabel.TextColor3 = Color3.fromHSV(hue, 1, 1)
	end)
end

local function setupPlayer(player)
	player.CharacterAdded:Connect(function(character)
		createRainbowName(player, character)
	end)

	if player.Character then
		createRainbowName(player, player.Character)
	end
end

Players.PlayerAdded:Connect(setupPlayer)

for _, player in ipairs(Players:GetPlayers()) do
	setupPlayer(player)
end