✅ Trigger Conditions
- Activated when the user reaches the end of the article via scrolling.

• Modal appears only if a valid suggestion is available (see fallback logic below).

✅ Article Selection Logic
- Pulls one article from categories defined in the plugin’s admin settings.

• Admin can select multiple categories as the source pool.

• Excludes the current article from being suggested.

• If no eligible article is found, the modal does not display (fallback behavior).

✅ Modal Content Design
Styled as a recommendation card featuring:

• Article intro image

• Article intro text or excerpt

• Optional: article title and read more link

✅ Admin Configuration Options
- Category Selection: Choose one or more categories to pull suggestions from.

Display Frequency:

• Show every time
• Once per session

• Once per day

• Fallback Toggle: Enable/disable modal display when no suggestions are available.

• Styling Options: Optional CSS class input for modal customization.

✅ Compatibility & Standards

• Native plugin structure
• Responsive design principles