JL978/spotify-clone-client ? reverse-engineered prompt

Build me a Spotify style web app front end that looks and feels like the Spotify web player.

It should let people browse playlists, albums, artists, and users even when they are not signed in, but lock the protected pages and player controls until they log in. When someone is logged in, show their personal info, saved items, playlists, and the ability to use the app like a remote control for playback on a Spotify device. The search page should update as you type, and results should keep loading as you scroll. Make the UI feel close to the real Spotify site, with a left sidebar, main content area, and a bottom player bar.

Use the Spotify API and connect it to an external auth server so login stays working after refresh. If you need to look up current docs online for the Spotify API or playback SDK, go ahead.