brakes are soft on 2002 Mazda Tribute

replaced the master cylinder seems to lose fluid but cant find no leaks i bleed brakes but it still soft

Asked by for the 2002 Mazda Tribute
did you have any leaks at the calipers?? confirm there are no leaks before proceeding.
did you bench blled the master before installation? if not, then system is air bound and can be difficult to remove all the air.

1 more answer
Sounds like there is still air in the system. Some newer cars with ABS, are very hard to manually bleed. It may require pressure or vaccum bleeding, some models even need a scan tool to put into a bleed mode.