The devil is in the details (de dévil is in de díteils)

Idiom Art

Meaning

Small details are often the most important or problematic.

Los pequeños detalles suelen ser los más importantes o problemáticos. (los pekenyos detalles swelen ser los mas importantes o problematicos)

"The overall concept was great, but the devil is in the details."

"El concepto general era genial, pero el diablo está en los detalles." (el concepto general era henial pero el diablo esta en los detalles)

to gradually stop using or providing something

showing maturity or wisdom greater than expected for one’s a...

leading or inspiring new and creative ideas.

performing very well; full of energy and success

to be honest and trustworthy

to take responsibility for something bad.