body{margin:0;padding:0}.chat-app-container{height:100vh;width:100vw;display:flex;flex-direction:column;background:var(--bg-color);position:fixed;top:0;left:0;z-index:1000;overflow:hidden}.messages-container{flex:1;overflow-y:auto;overflow-x:hidden;padding:1rem;scroll-behavior:smooth}.input-container{position:sticky;bottom:0;background:inherit;padding-bottom:env(safe-area-inset-bottom);border-top:1px solid var(--border-color)}.chat-app-container{::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#888;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#555}}@media (max-width:768px){.chat-app-container{height:-webkit-fill-available}.messages-container{padding-bottom:20px}}@keyframes floating{0%{transform:translateY(0)}50%{transform:translateY(-5px)}to{transform:translateY(0)}}#animate-floating{animation:floating 2s ease-in-out infinite}