create a simple expandable sidebar using only HTML and CSS. The sidebar expands when you hover over it and shrinks back when you move the mouse away, centered is a futuristic LLM Chat Component, Input Component Floating, Icons for Input Message and Output Message, Conversation Flat Background, Output Message contains attach files, add voice, share and heart icon on hover, Input Message contains Copy, Share,Download, Below is a Textarea Field (with attach,voice,lock and database symbol and a submit button. SplitScreen Layout with a Terminal, code display | A shadcn/ui and v0 generation - v0
