Streamline study discovery and apply remaining editorial recommendations

The September walkthrough found that outcome charts and citation guidance separate Browse search controls from the first results, especially in reproduction mode on phones.

Suggested acceptance criteria:

- Put result count and first results directly after filters, with a compact or collapsible summary chart; provide explicit outcome/year filters and clear-search/reset controls.
- Show an explicit empty-state message over the chart when no assessed outcomes match, instead of an empty 0–1 axis.
- Consider full-title cards on desktop or a clear table/card switch.
- Standardise computational/numerical reproduction terminology and sentence case. Consider Coverage & outcomes and Journal citation metrics as clearer section names, with definitions retained.
- Label RR complement as Not identified as an RR, preserving uncertainty.
- Clear Link copied after a short interval or a subsequent filter change.
- Replace the diagonal WIP ribbon with a compact status badge that remains visible on mobile; keep essential experimental caveats beside affected results.
- Shorten repeated introduction/citation prose and explain when to choose the explorer versus Replication Atlas.

Retain the plum palette, serif headings, evidence access and CSV alternatives. Validate the redesign with first-time students and evidence-seeking researchers, plus keyboard/screen-reader and real mobile testing. The current patch addresses the narrow selector, chart-grid overflow, link contrast, tooltip relationships/dismissal and tab scroll; these broader design decisions remain.

Start by reviewing the current patch areas named in the issue: the selector, chart-grid overflow, link contrast, tooltip relationships and dismissal, and tab scrolling. Map the remaining acceptance criteria across the explorer and Replication Atlas, then validate the completed redesign with first-time students, evidence-seeking researchers, keyboard and screen-reader users, and real mobile testing.

Written by the indexing model from the issue text.