CSS State Engine // Pattern Architecture
Zero-JS Interactive Pipeline & State Propagation
01 // DOM TRIGGER LAYER 02 // SELECTOR & COMBINATOR 03 // TARGET MUTATION DISPATCHES EVALUATES SIBLING REF APPLIES INPUT#TOGGLE [HIDDEN] LABEL[FOR="TOGGLE"] :CHECKED (STATE: 0) :CHECKED + .PANEL MUTATION RULES MAX-HEIGHT: 0 → 180PX OVERFLOW: HIDDEN VISIBILITY: VISIBLE TARGET UI CONTAINER ACCORDION HEADER + ACTION