Wolves boss Nuno Espirito Santo told BBC Match of the Day: "We didn't perform so well, like we wanted. It was a tough game against a very good team.
"They were organised, but so were we. It was a game of not too many chances.
"It's about where we came from. We started three years ago and we keep on building, trying always to sustain the level of performance. I think today we didn't, and we have to improve for the next one."
Brighton manager Graham Potter told MOTD: "It was important for us to keep a clean sheet. We took part in a game against a team with a lot of dangerous players, but we restricted them to not too many clear-cut chances.
"We did well. Defensively we're really pleased. It was a collective effort. With the quality they have they can put you in dangerous places.
"We took part in the game. We tried to play and attack when we could. We had opportunities but it wasn't to be. We move forward really positively with a clean sheet - we hadn't had one for a while.
"All the games in this league are quite brutal. We just need to keep working, fighting and preparing for the next game."