.collapse-section{overflow:hidden}.collapse-header{display:flex;justify-content:space-between;align-items:center;padding:10px;background-color:#f5f5f5;cursor:pointer}.title{font-size:16px;font-weight:700}.chevron{transition:transform .3s ease}.chevron.rotate{transform:rotate(180deg)}.collapse-content{overflow:hidden}.collapse-content p{margin:0}.collapse-content.collapsed{max-height:0;display:none}