New user and need product quantity help

I’m trying to switch from prestashop to woocommerce in hopes this is possible.

On the product page, Product Data section > Inventory, set “Enable stock management at product level” = checked. The alternative is this unchecked and then manage stock at variation level, which you don’t want.

I made sure that is checked and not the check boxes in the variations.
So I set the product to Variable Product. Added Color attribute with all colors divided by |.
Then go to Variations, and click Link all variations. This makes a variation from each color in attribute.

Then in bulk edit I select and set Sale Price and Price.

This adds all colors and a quantity I selected in inventory to the product page which works.

Now when I test add 4 to cart it adds it but doesn’t update the start quantity of 25 to 21. Does this only change once there is a successful order placed and not dynamically updated I assume?

Also, off topic but how do I change the Price colors? They are a pale green and nearly invisible when you select any color backgrounds. When customizing the theme using WP none of the options seem to change them I’d like to at least make them bold or a different color.

I didn’t see anything in the theme CSS.

You can see the test site here. https://www.lnhvapes.com/shop

The stock quantity adjusts when the customer successfully clicks “Place order” on the checkout page.

If you think you might get two customers buying at the same time, the slower customer will get an “product is unavailable” message at the last moment. See this thread:
https://github.com/woothemes/woocommerce/issues/5966

If this bothers you, there are several stock management plugins out there that may cover this possibility. You will need to research them, unless someone here can advise us.

You can change the price text colour with this custom css:

.woocommerce-tabs ul.tabs li.active a,
ul.products li.product .price,
.onsale
{color: #787E87}