Is the word detalhes the same in Brazilian and European Portuguese?

Yes

The word "detalhes" is identical in spelling, meaning, and grammar in both Brazilian and Continental Portuguese. The only difference is in pronunciation:

• Brazilian Portuguese: The unstressed vowels (like the "e" in "detalhes") are typically more "open" and clearly articulated.
• Continental Portuguese: The unstressed vowels are much more "closed" or reduced, often sounding swallowed or nearly silent in natural speech.

Brazilian Portuguese Examples:

1. "Eu preciso de mais detalhes sobre o projeto." (I need more details about the project.)
2. "Ela explicou todos os detalhes do plano." (She explained all the details of the plan.)
3. "Não se preocupe com os pequenos detalhes agora." (Don't worry about the small details right now.)
4. "O relatório contém detalhes importantes." (The report contains important details.)
5. "Você pode me dar mais detalhes?" (Can you give me more details?)

Continental Portuguese Examples:

1. "Preciso de mais pormenores sobre o projeto." (I need more details about the project.)
2. "Ela explicou todos os pormenores do plano." (She explained all the details of the plan.)
3. "Não te preocupes com os pequenos pormenores agora." (Don't worry about the small details right now.)
4. "O relatório contém pormenores importantes." (The report contains important details.)
5. "Podes dar-me mais pormenores?" (Can you give me more details?)