local killY = -500
pcall(function()
    killY = workspace.FallenPartsDestroyHeight
end)

local terrain = workspace:FindFirstChildOfClass("Terrain")
local region = terrain.MaxExtents

local pad = 150
local minX = region.Min.X - pad
local maxX = region.Max.X + pad
local minZ = region.Min.Z - pad
local maxZ = region.Max.Z + pad
local floorY = region.Min.Y

local sizeX = maxX - minX
local sizeZ = maxZ - minZ
local centerX = (minX + maxX) / 2
local centerZ = (minZ + maxZ) / 2

-- Kill plane at void threshold
local voidPlane = Instance.new("Part")
voidPlane.Name = "VoidKillPlane"
voidPlane.Anchored = true
voidPlane.CanCollide = false
voidPlane.Size = Vector3.new(sizeX, 2, sizeZ)
voidPlane.CFrame = CFrame.new(centerX, killY + 1, centerZ)
voidPlane.Color = Color3.fromRGB(100, 100, 100)
voidPlane.Material = Enum.Material.SmoothPlastic
voidPlane.Transparency = 0.4
voidPlane.Parent = workspace

-- Zone fill between floor and kill plane
local voidZone = Instance.new("Part")
voidZone.Name = "VoidZoneFill"
voidZone.Anchored = true
voidZone.CanCollide = false
voidZone.Size = Vector3.new(sizeX, math.abs(floorY - killY), sizeZ)
voidZone.CFrame = CFrame.new(centerX, killY + math.abs(floorY - killY) / 2, centerZ)
voidZone.Color = Color3.fromRGB(80, 80, 80)
voidZone.Material = Enum.Material.SmoothPlastic
voidZone.Transparency = 0.85
voidZone.Parent = workspace

_G.RemoveVoidESP = function()
    voidPlane:Destroy()
    voidZone:Destroy()
end