Move inline styles to CSS classes; update README

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>

README.md

@@ -2,9 +2,9 @@
 
 Source: https://git.4angle.com/edward/bristol-eurostar
 
-Plan a trip from Bristol Temple Meads to Europe on Eurostar.
+Plan a trip from Bristol Temple Meads to Europe via Eurostar.
 
-Combines GWR trains (Bristol → Paddington) with Eurostar services (St Pancras → destination) and shows all valid same-day connections, filtering by journey time and minimum/maximum transfer window at Paddington/St Pancras.
+Combines GWR trains (Bristol → Paddington) with Eurostar services (St Pancras → destination) and shows all valid same-day connections, including Circle Line times for the Paddington → St Pancras transfer. Displays GWR walk-on fares, Eurostar Standard prices, seat availability, and total journey cost.
 
 ## Destinations
 
@@ -12,23 +12,42 @@ Combines GWR trains (Bristol → Paddington) with Eurostar services (St Pancras
 - Brussels Midi
 - Lille Europe
 - Amsterdam Centraal
+- Rotterdam Centraal
+- Cologne Hbf
 
 ## How it works
 
-Train times are fetched from two sources simultaneously:
+Train times and prices are fetched from two sources:
 
 - **GWR** — scraped from [Realtime Trains](https://www.realtimetrains.co.uk/) using httpx
-- **Eurostar** — scraped from the Eurostar timetable pages via the embedded `__NEXT_DATA__` JSON (no browser required)
+- **Eurostar** — fetched from the Eurostar GraphQL API (single call returns timetable, Standard fares, and seat availability)
+
+The Paddington → St Pancras transfer uses a real Circle Line timetable parsed from a TfL TransXChange XML file, accounting for walk time to the platform at Paddington and walk time from the platform to the St Pancras check-in.
 
 Results are cached to disk by date and destination.
 
 ## Connection constraints
 
+Configurable via the search form. Defaults:
+
 | | |
 |---|---|
-| Minimum Paddington → St Pancras | 75 min |
-| Maximum Paddington → St Pancras | 2h 20m |
-| Maximum Bristol → Paddington    | 1h 50m |
+| Minimum Paddington → St Pancras | 50 min |
+| Maximum Paddington → St Pancras | 110 min |
+
+Valid range: 45–120 min (min), 60–180 min (max).
+
+## GWR fares
+
+Walk-on single fares for Bristol Temple Meads → Paddington, selected automatically by departure time:
+
+| Ticket | Price | Restriction (weekdays) |
+|---|---|---|
+| Super Off-Peak | £45.00 | Not valid 05:05–09:57 |
+| Off-Peak | £63.60 | Not valid before 08:26 |
+| Anytime | £138.70 | No restriction |
+
+Weekends always use Super Off-Peak.
 
 ## Setup
 
@@ -36,6 +55,19 @@ Results are cached to disk by date and destination.
 pip install -e ".[dev]"
 ```
 
+### Configuration
+
+Copy or create `config/local.py` (gitignored) to override defaults:
+
+```python
+CACHE_DIR      = '/var/cache/bristol-eurostar'
+CIRCLE_LINE_XML = '/path/to/output_txc_01CIR_.xml'
+```
+
+Defaults (in `config/default.py`) use `~/lib/data/tfl/`.
+
+The Circle Line XML is a TfL TransXChange timetable file. The Paddington (H&C Line) stop is `9400ZZLUPAH1`; the King's Cross St Pancras stop is `9400ZZLUKSX3`.
+
 ## Running
 
 ```bash