Is Hyperliquid centralized?

I'm curious to know, is Hyperliquid a centralized platform? Given the nature of cryptocurrencies and the push towards decentralization, I'm interested in understanding whether Hyperliquid aligns with this philosophy. Could you elaborate on how Hyperliquid operates and whether it falls under the umbrella of centralized or decentralized systems? I'm looking for a clear answer that sheds light on the platform's underlying architecture and how it impacts user experience and security.