Two-Tier Input with Floating Label

This implements a two-tier input design with a floating label using Tailwind CSS utilities. It has an outer `<div>` with `relative` positioning to contain everything. The `<label>` is absolutely positioned to overlay the input and has `bg-white` and `text-xs` to style it as a floating label. The `<input>` uses `block`, `rounded`, `py-1.5`, and `text-gray-900` for basic styling, along with `ring-1`, `ring-inset`, and `focus:ring-2` for the focus outline.