.post-card{transition:transform .2s ease,box-shadow .2s ease}.post-card:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a}.reaction-btn{transition:transform .1s ease}.reaction-btn:active{transform:scale(1.2)}.reaction-btn.active{transform:scale(1.2);filter:drop-shadow(0 0 8px rgba(255,107,107,.6))}.comment-item{animation:slideIn .3s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.media-placeholder{background:linear-gradient(135deg,#fcd34d,#fb923c,#f472b6)}#detail-media{animation:fadeIn .4s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#fbbf24;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#f59e0b}