;How to create running total that resets upon a NULL value T-SQL

I am trying to create a running total column that resets each time it encounters a null or multiple null values. I expect to maintain the ID partition and date order.
I expect the result as the table below

I tried the code below but it messed up the ordering and does not deal with Null values as I want.

SELECT ID
	   , date
	   , value
       ,Running_T = SUM(value) OVER(PARTITION BY ID, (CASE WHEN [value] IS NOT NULL THEN [value] ELSE NULL END) ORDER BY [date])
FROM dim.event_data

This is a classic Gaps And Islands problem. There are more efficient solutions but a simple one is as follows:

You can use a conditional running COUNT to number each set of rows. Then do a running SUM over that group number to get the final result

WITH Counted AS (
    SELECT *,
      GrpId = COUNT(CASE WHEN value IS NULL THEN 1 END)
              OVER (PARTITION BY ID ORDER BY date ROWS UNBOUNDED PRECEDING)
    FROM event_data ed
)
SELECT *,
    Running = SUM(value) OVER (PARTITION BY ID, GrpId ORDER BY Date)
FROM Counted;

db<>fiddle

you can try like this

SELECT ID,
    date,
    value,
    CASE
        WHEN value IS NULL THEN NULL
        ELSE SUM(value) OVER (PARTITION BY ID ORDER BY date) 
    END AS Running_T
FROM YourTable;