Grid Lights

Requirements

• Use the supplied 3×3 grid with no center light and eight native buttons. Start with all lights off.
• Clicking an off light turns it on and records its position. Repeated clicks on an active light do nothing. Keep aria-pressed synchronized.
• After the eighth distinct activation, disable all lights and remove one activation every 300ms, most recent first. No lights turn off before the first interval.
• After all lights turn off, enable input and allow a fresh round. Use a fresh activation order for each round.
• Clear scheduled work on unmount. Keep the supplied IDs and basic grid CSS; no reset button or persistence is required.

Examples

Input: Activate all eight lights, ending with the top-left one
Output: Disable controls, then turn off the top-left light after 300ms and unwind the rest in reverse order.

Input: Click an already active light
Output: Keep the existing activation count and order.