Case C-49/18: Judgment of the Court (Second Chamber) of 7 February 2019 (request for a preliminary ruling from the Tribunal Superior de Justicia de Cataluña — Spain) — Carlos Escribano Vindel v Ministerio de Justicia (Reference for a preliminary ruling — Budgetary austerity measures — Reduction of remuneration in the national civil service — Method — Differential impact — Social policy — Equal treatment in employment and occupation — Directive 2000/78/EC — Article 2(1) and (2)(b) — Charter of Fundamental Rights of the European Union — Article 21 — Judicial independence — Second subparagraph of Article 19(1) TEU)