Message scroller

Follows a streaming reply while you are at the bottom. Scroll up and it lets go; a "Latest" pill pops in.

Message scroller is part of Pro.

Get Pro to try it live and copy its code, along with every other element in the library.

ChatBubbles pop in from their own corner. The composer grows as you type; send folds the text away and it lands in the thread.
ReasoningSteps arrive one by one; the newest shimmers as the live status line. When thinking ends the whole list folds up into "Thought for 3.2s", which re-opens on press with the steps fanning back in.
Tool callOne tool call, two quiet lines. Top: a 12px pip that goes dot, spinning ring, tick or cross, the tool name, and the elapsed time rolling on the right.
Citations · sourcesNumbered chips sit inline with the prose. Hovering one pops a preview card out of a blur and lights its row in the sources panel.
Follow-up suggestionsAfter an answer streams in, suggestion chips deal out 40ms apart, each out of a blur. Pick one and the rest fade while the picked chip rides up into the thread as your message; a new answer streams underneath.
Attachment chipsFiles land in a composer bar as chips; a ring draws round the thumbnail while the (simulated) upload runs. Hover previews a chip, the x folds it out.