I adopted a kitten yesterday evening and she’s ~two months old. This is my first time with a cat and I’m having trouble

Customer: Hi! I adopted a kitten yesterday evening and she’s ~two months old. This is my first time with a cat and I’m having trouble getting her to eat and pee/poo. It’s been almost 24 hours and she hasn’t eaten (I’ve offered dried and wet food) and introduced her to litter box when we arrived and bring her to it after naps, etc. I’m wondering - is she still adjusting or should I contact a vet?
JA: Hi there. I'll do all I can to help. A lack of appetite can seem worrying. Does the kitten also seem more tired than usual?
Customer: She’s sleepy, yes
JA: Does the kitten seem to be in any pain?
Customer: no. She got microchipped yesterday so they said she’d be sore but not in pain
JA: What's the kitten's name?
Customer: Clementine
JA: Is there anything else the Vet should know before I connect you? Rest assured that they'll be able to help you.
Customer: that’s all, the adoption center gave us little info and isn’t super responsive so i just wasn’t sure where else to ask. Thank you!