Kya nakhun (nails) lambe ho to unme namaz ni hoti or kya kale kapdo m nmz ni hoti?

Agar lambe nails ho aur uoos me gandagi ho jo wazu ya gusl ke pani pah7nchne me rukavat bane to wazu aur gusl sahi nahi hoga,
Kale kapdo me namaz ho sakti hy