Long-stay visas
National D visas: work, study, family, nomads
Types
Work (D)
Work permit/contract → national visa → residence permit on arrival.
Student
University invitation + proof of funds (blocked account in Germany ~11.9k €/yr).
Family reunion
Relative with status + housing + sponsor income.
Digital nomad
Portugal, Spain, Croatia, Estonia: foreign income ~2–3.5k €/mo.
A D visa is only entry: a residence permit follows after arrival. Processing takes 1–3 months; apply early. Apostille and sworn translation of documents are almost always required.