.chat-container{max-width:800px;margin:20px auto;padding:0 10px;font-family:sans-serif}.chat-container h1{color:#000;text-align:center;background:#9cffe1;border-radius:5px 5px 0 0;padding:10px 20px}.timeline{background:#f9f9f9;border:1px solid #eee;border-radius:0 0 5px 5px;flex-direction:column;gap:10px;height:400px;padding:20px;list-style:none;display:flex;overflow-y:auto}.timeline li{background:#eee;border-radius:5px;padding:10px 15px;position:relative}.timeline li.latest{background:#e8f3ff}.timeline li span{line-height:1.4;display:block}.timeline li time{color:#707070;font-size:.7rem;position:absolute;bottom:5px;right:10px}.chat-form{gap:10px;margin-top:10px;display:flex}.chat-form input{border:1px solid #ddd;border-radius:5px;flex:1;padding:10px;font-size:1rem}.chat-form button{color:#000;cursor:pointer;background:#9cffe1;border:none;border-radius:5px;width:80px;font-size:1rem;transition:background .2s}.chat-form button:hover{background:#48ffc8}.timeline::-webkit-scrollbar{width:8px}.timeline::-webkit-scrollbar-thumb{background-color:rgba(0,0,0,.2);border-radius:4px}.timeline::-webkit-scrollbar-track{background:0 0}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.timeline li{opacity:0;background:#eee;border-radius:5px;padding:10px 15px;animation:.5s forwards fadeInUp;position:relative}.timeline li.latest{background:#e8f3ff;animation:.5s forwards fadeInUp}.login-container{background:#f0f8ff;border-radius:10px;flex-direction:column;gap:15px;max-width:400px;margin:50px auto;padding:30px;font-family:sans-serif;display:flex;box-shadow:0 4px 10px rgba(0,0,0,.1)}.login-container input{border:1px solid #ccc;border-radius:5px;outline:none;padding:10px 15px;font-size:1rem;transition:border .2s}.login-container input:focus{border-color:#6bb6ff}.login-container button{color:#fff;cursor:pointer;background:#6bb6ff;border:none;border-radius:5px;padding:10px;font-size:1rem;transition:background .2s}.login-container button:hover{background:#559ee6}.login-container .error{color:red;font-size:.9rem}.delete-btn{color:red;cursor:pointer;background:0 0;border:none;font-weight:700;position:absolute;top:5px;right:5px}