A fully styled select that behaves like the native one: a trigger button with a floating label opens a listbox of options with a colour dot, description and check mark. Arrow keys, Home/End, Enter, Escape and type-ahead all work, the chosen option fills the trigger and a hidden input carries the value for forms. Fires a bubbling "selectchange" event. Options are a loop over one array. Options (data attributes on the section): data-theme (light|dark) surface; data-style (outline|filled|underline) trigger look; data-size (s|m|l) field height; data-value (text) option selected on load; data-anim (rise|fade|none) entrance. ARIA listbox / combobox pattern (aria-expanded, aria-activedescendant-free roving focus), focus rings, reduced-motion safe.