ld(3) {
            animation-delay: 0.6s;
        }

        @keyframes blink {
            0%, 100% {
                opacity: 0.3;
            }
            50% {
                opacity: 1;
            }
        }

        .chat-input {
            display: flex;
            padding: 10px;
            background: #f1f1f1;
            border-top: 1px solid #ddd;
        }

        .chat-input input {
            flex: 1;
            padding: 8px;
            border: 1px solid #ccc;
            border-rad