Alright, I'm not gonna write the entire Constitution down here like I did in PU:NE because nobody is really gonna read it, so I'll just write the important stuff. There are 50 provinces. Each province will have one election year every 4 years. The next election year for every province will be 2032. In that year, there will be 2 elections. In one election, they will elect the governor. In the other election, they will elect their representative in the State Council. The 50 representatives of the State Council will then elect a Khalifah with a 25/50 vote. The Khalifah will have a term of 7 years and can rule for maximum 3 terms. The Khalifah must consult the State Council before every decision. A 35/50 vote from the State Council can veto the Khalifah's decision. A 45/50 vote from the State Council can remove the Khalifah. A 50/50 vote from the State Council can amend the Constitution. The Khalifah will appoint a Grand Vizier, who will become Khalifah if the Khalifah dies in office. The federal government will make laws, and the state governments will implement them. The capital will be Istanbul, which is renamed Konstantiniye. The Turkish script is changed to the Arabic/Ottoman script. The age of adulthood is 16. The legal system is that Muslims will be judged by Hanafi Shariah, non-Muslim citizens by Turkey's secular legal code, and foreigners by their own country's legal code by a Turkish judge. A foreign Muslim can appeal to be judged by Hanafi Shariah if he or she wants. In mixed cases, the criminal's identity will determine the punishment. There will be freedom of speech, press, religion etc. In times of war, the Khalifah can make military decisions without State Council oversight. The Khalifah and Grand Vizier must be Muslim. Muslim male citizens aged 16-50 can be drafted into the military. Non-Muslim women don't have to pay income taxes even if they work. That's all I can think of rn, I'll update it if I think of anything else.
Mostly me, I wrote this in like 5 minutes of just typing like crazy.