Hi Md Mubdiul Hasan
I think you mentioned your focus was more on the PCB layout but I think you need to pay more attention to the schematic / electronic design side of things first, otherwise what's the point?
The inputs to your OR gates only have a reference to ground and themselves so pushing those buttons would seem to do nothing?
I googled this for you.
https://circuitdigest.com/electronic-circuits/or-gate-circuitThe example in the link shows how you could achieve the same thing without discrete transistors at all.
If you post for help it would be really nice, and this goes for all in general, if you could provide some context around the motivation and background. Is this a school logic assignment or are you really just trying to learn PADS / PCB layout only?
If its the PCB alone then I have a few thoughts...
1. Just neaten this up a little.. the one to the left of it looks good.
2. Just swap these LED's and you've saved yourself a jumper trace, in fact I think this whole board could be done on one layer.
3. unless you've placed that component on the bottom side of the board its not going to connect to any copper.
4. Why does this via poke out like that.
5. also if you go this way you don't need it anyway.
[edit] single layer if you select a different button type.
David