Extract repeated inline styles from templates into named CSS classes in
base.html: layout helpers, buttons, form groups, alert boxes, results table
rules, row highlight classes, typography utilities, and empty-state styles.
Remove the per-page <style> block from results.html.
Update README to reflect current destinations, GraphQL data source, Circle
Line timetable, configurable connection range, and GWR fare table.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
