lmao

frontend/src/components/learn/LearnPage.tsx

@@ -134,64 +134,79 @@ interface FAQItem {
 
 const FAQ_ITEMS: FAQItem[] = [
   {
-    question: 'What is this application?',
+    question: 'Are the prices shown current market values?',
     answer:
-      'Perfect Postcode is an interactive map that visualises property-level data across England and Wales. It combines Land Registry sale prices, EPC energy certificates, TfL journey times, deprivation indices, crime statistics, broadband speeds, school ratings, road noise levels, ethnicity demographics, and OpenStreetMap points of interest into a single explorable view.',
+      'No. The prices shown are the last known sale price recorded by HM Land Registry, which is the price the property actually sold for. A property last sold in 2005 will show its 2005 price. These are not valuations or estimates of current market value. You can use the "Last known price" filter to focus on properties sold within a recent date range, and compare against the median rental prices for the local authority.',
   },
   {
-    question: 'Where does the data come from?',
+    question: 'What is the "Estimated current price" and how is it calculated?',
     answer:
-      'All data comes from open government and community sources. Property prices are from HM Land Registry, energy certificates from MHCLG, transport times from TfL, deprivation scores from the English Indices of Deprivation 2025, crime data from data.police.uk, school ratings from Ofsted, broadband from Ofcom, noise from Defra, ethnicity from the 2021 Census, and points of interest from OpenStreetMap. See the Data Sources tab for full details and links.',
+      'The estimated current price is an inflation-adjusted estimate of what a property might be worth today, based on its last known sale price. It works in three stages. First, a repeat-sales price index (built from properties that have sold more than once) tracks how prices have moved within each postcode sector and property type over time — this adjusts the historical sale price to current levels. Second, spatial comparable sales from nearby properties of the same type are used to refine the estimate. Third, a machine learning model captures quality differences that the index alone misses (such as floor area, energy rating, local amenities, and deprivation). Properties with post-sale improvements detected from EPC records — such as extensions or renovations — also receive a renovation premium. The more recently a property sold, the closer the estimate will be to the actual sale price; older sales are adjusted more heavily.',
   },
   {
-    question: 'What are the coloured hexagons on the map?',
+    question: 'How are current for-sale and for-rent listings found?',
     answer:
-      'The map uses H3 hexagons to aggregate property data at different zoom levels. Each hexagon summarises the properties within it. The colour represents the value of whichever feature you have pinned or are actively filtering — for example, average price or energy rating. Zoom in to see smaller, more detailed hexagons; zoom out for a broader overview.',
+      'Properties currently on the market are sourced by periodically searching independent property portals (Rightmove, OnTheMarket, and Zoopla). These listings are fuzzy-matched by address to existing Land Registry records so that current asking prices appear alongside the historical sale price, EPC data, and all area-level statistics. You can filter by "Listing status" to show only properties currently for sale or for rent. When you click on a hexagon, you\'ll also see direct links to search Rightmove, OnTheMarket, and Zoopla for that area, pre-filled with your active price filters.',
   },
   {
-    question: 'How do filters work?',
+    question: 'What area does this cover?',
     answer:
-      'Use the Filters panel on the left to narrow down properties. Add a filter by clicking a feature name, then drag the range slider to set minimum and maximum values. For categorical features like property type, select or deselect individual values. Only hexagons containing properties that match all active filters are shown. Filters are combined with AND logic — every property must satisfy every filter.',
+      'England. The core datasets — Land Registry prices, EPC energy certificates, deprivation indices, crime statistics, school ratings, broadband speeds, noise mapping, and council tax — all cover England. Points of interest from OpenStreetMap cover Great Britain, but the property-level data is England only.',
   },
   {
-    question: 'What does the eye icon do on a filter?',
+    question: 'Why is data missing for my property?',
     answer:
-      "The eye icon pins a feature as the colour source for the hexagon layer. When pinned, hexagons are coloured by that feature's value range even when you are not actively dragging its slider. This lets you visualise one feature while filtering on others. Click the eye icon again to unpin.",
+      'There are a few common reasons. If a property has never been sold (or was last sold before Land Registry digital records began in 1995), there will be no price record. EPC data may be missing if the property has never had an energy assessment, or if the owner has opted out of public disclosure. Floor area, number of rooms, and energy ratings all come from EPC records, so a missing EPC means those fields will be blank. Finally, the fuzzy address matching between EPC and Land Registry records occasionally fails for unusual addresses.',
   },
   {
-    question: 'How fresh is the data?',
+    question: 'How do I find areas that match what I\'m looking for?',
     answer:
-      'Property prices cover all Land Registry transactions up to the most recent quarterly release. EPC data includes certificates issued up to the latest available download. Crime data spans 2023–2025 as yearly averages. TfL journey times are computed from current timetables. Deprivation indices are from the 2025 release. School ratings reflect the latest Ofsted inspections as at April 2025. Broadband data is from Ofcom Connected Nations 2025.',
+      'Use the Filters panel on the left. Add filters for the features you care about — for example, set a price range, require a minimum energy rating, or select "Freehold" only. All filters combine with AND logic, so every property must satisfy every filter. Use the eye icon to pin a feature as the colour source — this lets you, say, colour the map by price while filtering on floor area and energy rating at the same time. The hexagons will update in real time as you adjust.',
   },
   {
-    question: 'How are EPC records matched to Land Registry sales?',
+    question: 'How does the travel time feature work?',
     answer:
-      "EPC and Land Registry records don't share a common identifier, so they are fuzzy-joined by address within each postcode bucket. The pipeline uses token-sorted string similarity with special handling for numeric tokens (house numbers, flat numbers). Matches are assigned greedily from highest similarity score downward so each record is used at most once.",
+      'Click the travel time icon in the filters panel, search for a destination (any address or postcode in England), and choose a transport mode (car, bicycle, walking, or public transport). The map will colour hexagons by average journey time to that destination. You can add a time range filter to only show areas within, say, 30 minutes. Multiple destinations can be added simultaneously to find areas that are well-connected to several places.',
   },
   {
-    question: 'What are Points of Interest (POIs)?',
+    question: 'Can I export the data I\'m looking at?',
     answer:
-      'POIs are places like cafes, schools, supermarkets, GP surgeries, parks, and train stations extracted from OpenStreetMap and the NaPTAN public transport dataset. Use the POI panel on the right to toggle categories on and off. POIs appear as markers on the map when you are zoomed in far enough.',
+      'Yes. Use the export button to download the currently filtered properties within your map view as an Excel spreadsheet. The export respects all your active filters, so you can narrow down to exactly the properties you want before downloading.',
+  },
+  {
+    question: 'What do the deprivation scores mean?',
+    answer:
+      'The English Indices of Deprivation 2025 rank every small area (LSOA, roughly 1,500 people) in England from most to least deprived. A rank of 1 means the most deprived area in the country. The scores cover seven domains: Income, Employment, Education, Health, Crime, Barriers to Housing & Services, and Living Environment. Each domain can be filtered independently. Lower rank numbers indicate higher deprivation.',
+  },
+  {
+    question: 'How reliable is the crime data at this scale?',
+    answer:
+      'Crime figures are sourced from data.police.uk and aggregated as yearly averages (2023\u20132025) per LSOA — an area of roughly 1,500 people. This means the numbers reflect a neighbourhood average, not a specific street. Crime counts are broken down by type (violence, burglary, anti-social behaviour, vehicle crime, etc.) so you can filter on the categories that matter to you. As with all area-level statistics, they are useful for comparing neighbourhoods but should not be over-interpreted for individual streets.',
+  },
+  {
+    question: 'What does the school rating represent?',
+    answer:
+      'The school rating is the average Ofsted inspection outcome for state-funded schools near each postcode. Ofsted grades schools from 1 (Outstanding) to 4 (Inadequate). A value of 1.5 for a postcode means the nearby schools average between Outstanding and Good. This covers primary and secondary schools with inspection results as at April 2025.',
+  },
+  {
+    question: 'What happens when I zoom in very far?',
+    answer:
+      'At lower zoom levels, properties are grouped into hexagons that get smaller as you zoom in. When you zoom past level 15, the map switches from hexagons to individual postcode polygons, showing the actual postcode boundary shapes. Click any postcode polygon to see the properties within it.',
   },
   {
     question: 'Can I share a specific view with someone?',
     answer:
-      'Yes. The URL updates automatically as you pan, zoom, and change filters. Click the Share button in the header to copy the current URL to your clipboard. Anyone who opens that link will see the same view, filters, and active POI categories.',
+      'Yes. The URL updates automatically as you pan, zoom, and change filters. Click the Share button in the header to copy the current URL. Anyone who opens that link will see the same map position, zoom level, filters, pinned feature, and active POI categories.',
   },
   {
-    question: 'How do I see individual properties?',
+    question: 'How can I remove my property from the map?',
     answer:
-      'Click on a hexagon to open the Properties panel on the right. It lists all matching properties within that hexagon, showing address, price, and key features. Use "Load more" at the bottom to paginate through large hexagons.',
+      'Property sale prices are public records from HM Land Registry and cannot be removed. EPC data (energy rating, floor area, number of rooms, etc.) can be removed by opting out of public disclosure through the government\u2019s official process at gov.uk/guidance/energy-performance-certificates-opt-out-of-public-disclosure. Once opted out, your EPC data will no longer appear in future data updates.',
   },
   {
-    question: 'Why are some hexagons grey?',
+    question: 'How often is the data updated?',
     answer:
-      'Grey hexagons contain properties that have data but fall outside the range of your currently pinned or active feature. This gives you a sense of where properties exist even when their values are outside your selected range.',
-  },
-  {
-    question: 'Does this work on mobile?',
-    answer:
-      'Yes. On mobile, the dashboard uses a vertical split layout with the map on top and a tabbed panel below for filters, area stats, properties, and POIs. Tapping a hexagon opens a full-screen drawer with the details. The full desktop experience with side-by-side panels is available on screens 768px and wider.',
+      'Land Registry price data is updated quarterly. EPC records are updated as new certificates are issued. Crime data covers 2023\u20132025 as yearly averages. Deprivation indices are from the 2025 release. School ratings are as at April 2025. Broadband speeds are from Ofcom Connected Nations 2025. Council tax rates are for 2025\u201326. The map is rebuilt periodically to incorporate the latest available data from each source.',
   },
 ];