Entire client froze while in champ select in a ranked game...

I was entering a ranked game in solo que about 10 minutes ago, but when i entered champ select my client was still dark from the " accept " or " decline " screen, and i wasn't able to select any champions, summoner spells, or masteries/runes, my entire client was pretty much completely useless and i couldn't click on anything.. not even the " X " in the top right to close the client was able to be clicked... i was one game away from my series and now i lost LP for dodging when i didn't even dodge my client glitched out and made it literally impossible for me to select a champion or use chat... pretty upset

I have images to attach once i figure out how to