{% if error %}
    <details style="background:#fee;
                    border:1px solid #c00;
                    padding:8px;
                    margin:4px 0;
                    font-family:monospace;
                    font-size:12px">
        <summary style="color:#c00;cursor:pointer">⚠ Panel error: {{ error.panel_name }}</summary>
        <p>
            <strong>Source:</strong> {{ error.source }}
        </p>
        <p>
            <strong>Exception:</strong> {{ error.exception }}
        </p>
        <pre>{{ error.traceback_str }}</pre>
    </details>
{% endif %}