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Help with hover interaction

Hello! I need a little help with the interactions. In the following page, I want to change the colour of the letter (words: design, technology, society) on the first hover and when they hover again, I want it to go back to normal. Instead of hover out, I want it to change at second hover.
I want to add a highlight which animates from left to right on hover but only for these three words (text span). Please help me out with it!

Here is my read only link: