Question on front-end developing

Definitely not enough to only know CSS/HTML/Js. The most painful part of being a front-end developer is about how much you actually have to learn, as soon as you learn one framework, the next one becomes the new good thing. Companies usually list what skills they exactly want you to have so I'd search for jobs first, and then adapt my learning schedule to it. I don't wish to discourage you from what you want to do but the remote market is really hard to get into, especially with the amount of Indians willing to work for insanely low salaries.

-Entry level
--HTML/CSS (Know it better than your own native language)
--JavaScript or any of it's framework libs preferably jQuery if any (Know it enough to the point where you could comfortably know your way around it)

-Good chance of getting the job you apply for
--At least got entry level covered
--Have a basic understanding of all major JS Frameworks and master at least 1 (jQuery/AngularJS/ReactJS)
--Knowing at least GSAP or PixiJS and Scrollmagic to a point where you would feel comfortable implementing something with those libs
--Have some understanding of PHP

-Get pretty much any job you want
--At least good chance covered
--Master 2 JS Frameworks and being advanced in another
--Know any canvas libs pretty well, master GSAP, PixiJS and Scrollmagic
--Be advanced in knowing PHP