Think this is sunburn, what to do next in my climate

[SeekOrchids]

First off, hi! Very excited to be here and learn how to properly grow orchids.

This orchid here has been thriving great on my windowsill (I live in hawaii, just for a climate fyi). It has a healthy root system, and had good green colour to it's leaves. It's about a year old give or take.

However, as of today it looks like it is suddenly heading downhill fast. The only thing I did different was set it outside for a couple of days next to the rest of my orchids. I looked at some other posts on these forums and concluded my plant must have gotten sunburned. (Do you think so?)

Since I almost killed it by trying to be nice and put it outside, I don't trust my "What do I do next" decision making and wanted to run that by more experienced people and see what you all think.

I moved it into my bathroom that doesn't really get much sun (I'm aware of the whole light leaves = need less sun and vice versa) but im concerned about lack of airflow in there. It's pretty humid where I live. I am desperate to save my orchid, is the shady bathroom a safe place? And/Or what further steps shall I take?

I read that sun burn can cause rot and there are some mushy looking spots on the leaves that I see.. Should I be removing these leaves?

Also, just for the sake of this not happening again- I own a bunch more adults that thrive out on my porch, did this one get burnt because it had been raised indoors?

I'd be absolutely devastated if I lost this one (Its a keiki from the first orchid I ever owned and also the first keiki i ever transplanted). Hope someone can chime in. thanks for reading!