close-up of a frothy glass of dark beer with rich foam and warm lighting, highlighting texture and bubbles

root beer drink soda beverage sweet traditional float vanilla craft american classic herbal flavor sassafras refreshment frothy dark glass foam bubbles rich closeup texture carbonation warm brewing head liquid smooth malt creamy indulgent detail fullbodied inviting light taste tavern amberhue stout ale hops cozy artisan brewingprocess ai generated