Casablanca Anfa Airport (CAS) is closed to scheduled commercial traffic and has been redeveloped away from regular passenger service, so a lounge question here is really a question about the wrong airport: if you searched casablanca airport lounge expecting Anfa, the honest answer is that Anfa is not where Casablanca's air travel happens anymore.
Anfa's history as Casablanca's original airport ended once Mohammed V International Airport took over as the city's, and the country's, primary gateway, and the Anfa site itself moved toward redevelopment rather than continued passenger operations. Any lounge, terminal amenity, or facility question about the old Anfa field is effectively moot for travelers today, since it simply is not processing scheduled flights, and no current lounge directory should list it as an active option.
Mohammed V International Airport (CMN), located outside Casablanca, is the real Moroccan gateway and the anchor for the country's actual lounge picture. As Morocco's busiest airport and main international hub, CMN carries the bulk of the country's premium-cabin, elite-status, and airline-membership lounge traffic, serving both domestic connections and long-haul international routes in a way the historic Anfa field never does today, and never will again given its redevelopment path.
Lounge access at Mohammed V generally follows familiar patterns: airline-affiliated lounges for premium-cabin passengers and elite frequent flyers, alongside potential credit-card or membership-network coverage, though specific lounge names, hours, and exact eligibility are worth confirming directly with your airline or card program rather than assuming from general knowledge, since details at any major hub shift over time.
If your itinerary references Casablanca and a lounge matters to you, redirect your planning to Mohammed V International Airport rather than the historic Anfa field, and confirm current lounge access and hours directly with your airline before you travel, since Anfa itself is simply not part of the modern travel picture.