.chat-button{background-color:#11727d;border:none;border-radius:50%;bottom:20px;color:#fff;cursor:pointer;font-size:24px;height:60px;width:60px}.chat-button,.chat-window{box-shadow:0 4px 6px rgba(0,0,0,.1);position:fixed;right:20px;z-index:1000}.chat-window{background-color:#fff;border:1px solid #ddd;border-radius:8px;bottom:100px;flex-direction:column;height:400px;width:400px}@media (max-width:768px){.chat-window{width:350px}.robot{margin-left:-6px}}.chat-header{background-color:#11727d;border-radius:8px 8px 0 0;color:#fff;font-size:18px;padding:10px;text-align:center}.chat-messages{flex:1;font-size:14px;line-height:24px;max-height:290px;min-height:290px;overflow-y:auto;padding:10px}.chat-input{border-top:1px solid #ddd;display:flex;padding:10px}.chat-input input{border:1px solid #ddd;border-radius:4px;flex:1;padding:8px}.chat-input button{background-color:#11727d;border:none;border-radius:4px;color:#fff;cursor:pointer;margin-left:10px;padding:8px 12px}#chatWindow{opacity:0;pointer-events:none;transform:translateY(20px);transition:opacity .4s ease,transform .4s ease}#chatWindow.visible{opacity:1;pointer-events:auto;transform:translateY(0)}#chat-header-close{cursor:pointer;float:left}#chat-header-title{float:center}.btnopt{border-radius:10px;margin:10px 0}