html,body{margin:0;padding:0}*{box-sizing:border-box}a{color:inherit;text-decoration:none}.chat-scroll::-webkit-scrollbar{width:6px}.chat-scroll::-webkit-scrollbar-track{background:0 0}.chat-scroll::-webkit-scrollbar-thumb{background:#0f172a33;border-radius:3px}@keyframes pulse{0%,to{opacity:.4}50%{opacity:1}}.typing-dot{animation:1.4s ease-in-out infinite pulse}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}