argin: 15px 0;
            font-family: 'Courier New', monospace;
            font-size: 13px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .message {
            margin: 8px 0;
            padding: 8px;
            border-radius: 4px;
            word-wrap: break-word;
        }

        .message.sent {
            background: rgba(0, 123, 255, 0.3);
            border-left: 3px solid #007bff;
        }

        .message.received {
            background: rgba(40, 167, 69, 0.3