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openspec/changes/archive/2026-02-13-p01-robust-onepager/specs/hero-display/spec.md

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+## ADDED Requirements
+
+### Requirement: Hero block display
+The system SHALL display the most recent news item as a featured hero block with full attribution.
+
+#### Scenario: Hero rendering
+- **WHEN** the page loads
+- **THEN** the hero block SHALL display the latest news headline, summary, and featured image
+- **AND** show source attribution (e.g., "Via: TechCrunch")
+- **AND** show image credit (e.g., "Image: DALL-E")
+
+#### Scenario: Hero update
+- **WHEN** new news is fetched hourly
+- **THEN** the hero block SHALL automatically update to show the newest item
+- **AND** the previous hero item SHALL move to the news feed
+
+## ADDED Requirements
+
+### Requirement: Infinite scroll news feed
+The system SHALL display news items in reverse chronological order with infinite scroll pagination.
+
+#### Scenario: Initial load
+- **WHEN** the page first loads
+- **THEN** the system SHALL display the 10 most recent non-archived news items
+- **AND** exclude the hero item from the feed
+
+#### Scenario: Infinite scroll
+- **WHEN** the user scrolls to the bottom of the feed
+- **THEN** the system SHALL fetch the next 10 news items via API
+- **AND** append them to the feed without page reload
+- **AND** show a loading indicator during fetch
+
+#### Scenario: End of feed
+- **WHEN** all non-archived news items have been loaded
+- **THEN** the system SHALL display "No more news" message
+- **AND** disable further scroll triggers
+
+### Requirement: News attribution display
+The system SHALL clearly attribute all news content and images to their sources.
+
+#### Scenario: Source attribution
+- **WHEN** displaying any news item
+- **THEN** the system SHALL show the original source name and link
+- **AND** display image credit if available
+
+#### Scenario: Perplexity attribution
+- **WHEN** displaying aggregated content
+- **THEN** the system SHALL include "Powered by Perplexity" in the footer
+
+#### Scenario: Analytics tracking
+- **WHEN** Umami analytics is configured via `UMAMI_SCRIPT_URL` and `UMAMI_WEBSITE_ID`
+- **THEN** the system SHALL inject Umami tracking script into page head
+- **AND** track page view events on initial load
+- **AND** track scroll depth events (25%, 50%, 75%, 100%)
+- **AND** track CTA click events (news item clicks, source link clicks)