diff --git a/library/utils/viewportScrim.js b/library/utils/viewportScrim.js
index edc6753bf..72e04368c 100644
--- a/library/utils/viewportScrim.js
+++ b/library/utils/viewportScrim.js
@@ -27,8 +27,7 @@
  *   lives, not where the containment does.
  * ✗ width:100vw; height:100vh. MEASURED: fixes the SIZE but NOT the offset — the box still starts
  *   at (256,64), so it overflows off-screen right and bottom while the rail stays uncovered. A
- *   viewport-sized scrim in the wrong place is still the wrong scrim. (And the size is not even
- *   reliable: in one pane those units measured 1324x944 inside a 1280x900 window — see below.)
+ *   viewport-sized scrim in the wrong place is still the wrong scrim.
  * ✗ <Teleport to="body">. These components render INSIDE SHADOW ROOTS (measured: .dt-wrap's root
  *   is a ShadowRoot whose host is <cities-internet-map>). Teleporting to document.body leaves the
  *   shadow-scoped CSS behind and the modal renders UNSTYLED.
@@ -103,11 +102,10 @@ export function useViewportScrim(openRef) {
     // without ever naming the shorthand.
     // No capture (o is 0,0): this collapses to a box at 0,0 sized to the viewport — i.e. exactly
     // what inset:0 meant in the first place.
-    // ★ PIXELS FROM A MEASUREMENT, NOT vw/vh. 100vw/100vh are not reliably "the viewport" here:
-    // in the upg poster-wall pane the same declarations produced a rect of 1324x944 inside a
-    // 1280x900 window (computed width WAS 1280px, so the units resolved against a different
-    // viewport, not a transform — the ancestor chain had none). documentElement.clientWidth/
-    // Height is the actual laid-out viewport box and matched the window in every pane measured.
+    // PIXELS FROM A MEASUREMENT rather than vw/vh: documentElement.clientWidth/Height is the
+    // laid-out viewport box and excludes any classic scrollbar gutter, which is what a scrim
+    // should cover. (Both forms measured identically once box-sizing was fixed below — the
+    // 1324x944 reading that first looked like a unit problem was padding, not units.)
     const doc = el.ownerDocument || (typeof document !== 'undefined' ? document : null)
     const vw = doc?.documentElement?.clientWidth || 0
     const vh = doc?.documentElement?.clientHeight || 0
@@ -119,6 +117,13 @@ export function useViewportScrim(openRef) {
       bottom: 'auto',
       width: `${vw}px`,
       height: `${vh}px`,
+      // ★ REQUIRED, because box-sizing is NOT inherited into a shadow root from the host page's
+      // reset (poster-wall.vue's own CSS says so at .tape). Several scrims carry padding — the upg
+      // .modal-scrim has padding:22px to inset its dialog — so under the default content-box the
+      // border box became width+44 x height+44: MEASURED 1324x944 for an explicit 1280px/900px.
+      // inset:0 never exposed this because pinning all four edges sizes the BORDER box directly;
+      // switching to width/height is what made box-sizing start to matter.
+      boxSizing: 'border-box',
     }
   }
 
diff --git a/plugin-designs/research-dashboard/dashboard.config.js b/plugin-designs/research-dashboard/dashboard.config.js
index 0c7a0419a..66341fd36 100644
--- a/plugin-designs/research-dashboard/dashboard.config.js
+++ b/plugin-designs/research-dashboard/dashboard.config.js
@@ -12,6 +12,7 @@ import { lbl } from './src/composables/useDashboardAggregations.js'
 import { RELIGION_FAMILIES } from '@map/colors/religion.js'
 import { canonicalFamilyName } from '@map/colors/language-family.js'
 import langFamilyByIso from '@map/data/langFamilyByIso.json'
+import { getPrayerLevel, LABELS as PRAYER_LABELS } from '@map/colors/prayer-progress.js'
 
 // same numeric coercion the DataTable uses for its num columns
 const num = (v) => { if (typeof v === 'number') return v; const n = parseFloat(String(v ?? '').replace(/[^0-9.\-]/g, '')); return isNaN(n) ? null : n }
@@ -43,6 +44,36 @@ export default {
 
   // ── facet accessors ── THE single former-duplicated FACET_ACC, declared ONCE.
   facets: {
+    // ── PRAYER (card BUILD-ADD-A-PRAYER-FILTER-FIRST-IN-THE-ROW) ──
+    // `people_praying` is a LIVE per-row pray-tools field, already read by three shipping
+    // consumers in this very config: the KPI sum (kpis 'praying'), the table column
+    // ('Praying', num(r.people_praying)) and detail.fields. No derived boolean was invented.
+    //
+    // It is a COUNT, not a flag, and the app already splits that count THREE ways in
+    // library/colors/prayer-progress.js (the prayer map's colour strategy):
+    //   none (0/null) · partial (0 < n < 144) · full (n >= 144)
+    // Three levels => a DROPDOWN. We reuse getPrayerLevel + its LABELS instead of re-deriving
+    // the split, so the filter can never disagree with the colour of the pin it filters to —
+    // one threshold, one owner.
+    //
+    // ★ WHY THIS ACCESSOR MUST LIVE IN THE CONFIG AND NOT IN THE ADAPTER. useDashboardShell
+    // builds FACET_ACC from `config.facets` ALONE, and filteredRows FAILS OPEN on a key it
+    // cannot resolve (`return a ? a(r) === filterSet[k] : true`). A facet defined only in
+    // DashboardResearchFilters.vue therefore renders a working dropdown, lands a chip, and
+    // filters NOTHING — silently. A filter that filters nothing is worse than no filter,
+    // because the user reads the chip as proof the scope narrowed. The adapter keeps a local
+    // default and merges config-first, so THIS definition is the one that takes effect.
+    //
+    // Returns the human LABEL, which is both the display text and the bus value: the same
+    // value-is-label contract every non-People axis follows.
+    prayer_level: {
+      label: 'Prayer',
+      get: (r) => {
+        const n = r?.people_praying
+        const raw = n && typeof n === 'object' ? n.value : n
+        return PRAYER_LABELS[getPrayerLevel({ peoplePraying: raw ?? null })]
+      },
+    },
     religion: { label: 'Religion', get: (r) => lbl(r.religion) },
     // ── Religion TIER 1 (card BUILD-STACKED-TREE-LEGEND) ──
     // The Doxa API's religion code is 1-3 chars whose FIRST LETTER is the family
@@ -267,7 +298,10 @@ export default {
     // People = `affinity_bloc`, the SAME key the tree's top tier filters on, so a pick here and
     // a click there are one selection (card BUG-PEOPLE-AND-AFFINITY-BLOC-ARE-THE-SAME-AXIS-TWICE).
     // It stores the code and displays the name via the facet's `optionLabel`.
-    dropdowns: ['affinity_bloc', 'wagf_region', 'wagf_block', 'country_code', 'primary_language', 'religion'],
+    // `prayer_level` listed FIRST so the config owns the order rather than the adapter forcing
+    // it. DashboardResearchFilters de-duplicates on that key, so naming it here cannot render
+    // it twice — and if the adapter's forcing is ever removed, the order still holds.
+    dropdowns: ['prayer_level', 'affinity_bloc', 'wagf_region', 'wagf_block', 'country_code', 'primary_language', 'religion'],
     searchPlaceholder: 'Search people groups, place, language, religion…',
   },
   // `rop1_name` (not `affinity_bloc`) so free-text search matches the People NAME — DX-life's