[Python] scrapy only returns []

im trying to make a scraper but when i try to test out what i have to scrape nothing works

i first put into the shell

fetch('https://fasteignir.visir.is')


then i tried everything here

>>> response.css('estate__item wide-item-desktop')
[]
>>> response.css('estate__head-title')
[]
>>> response.css('hero__btns-mb')
[]
>>> response.css('estate__item-top').getall()
[]
>>>

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