I'm not sure about the function and meaning of the word "quite" in the sentence below. Would anyone please help?
"Through making Afghan Woman’s Hour I met many female carpet weavers, but up until then I had no idea of the hardship they had to endure to make these works of art, and I was struck by quite how unhappy many of these women were." (Retrieved from Dear Zari written by Zarghuna Kargar)
