## ADDED Requirements

### Requirement: Summary is rendered in a modal dialog using standard template
The system SHALL render article summary content in a modal dialog using the required structure.

#### Scenario: Open summary modal
- **WHEN** a user triggers summary view for an article
- **THEN** a modal dialog opens and displays content in this order: relevant image, TL;DR bullets, summary body, source and citation, and "Powered by Perplexity"
- **AND** modal content corresponds to the selected article

#### Scenario: Close summary modal
- **WHEN** a user closes the modal via close control or backdrop interaction
- **THEN** the modal is dismissed cleanly
- **AND** user returns to previous feed context without page navigation

### Requirement: Modal content preserves source link-out behavior
The system SHALL provide source link-outs from the summary modal.

#### Scenario: Source link-out from modal
- **WHEN** a user clicks source/citation link in the modal
- **THEN** the original source opens in a new tab/window
- **AND** modal behavior remains stable for continued browsing
