diff --git a/.gitignore b/.gitignore
index 73335a3..a42fcf0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ ds-bundle/
 .design-sync/.cache/
 .design-sync/learnings/
 .design-sync/node_modules
+.DS_Store
\ No newline at end of file
diff --git a/public/images/logo.png b/public/images/logo.png
new file mode 100644
index 0000000..56d0e98
Binary files /dev/null and b/public/images/logo.png differ
diff --git a/src/assets/logo.webp b/src/assets/logo.webp
new file mode 100644
index 0000000..ae7f28c
Binary files /dev/null and b/src/assets/logo.webp differ
diff --git a/src/components/Header.astro b/src/components/Header.astro
index cd070d8..3799534 100644
--- a/src/components/Header.astro
+++ b/src/components/Header.astro
@@ -19,7 +19,7 @@ const isCurrent = (href: string) => href.split('#')[0] === path && !href.include
 ---
 <header class="header" data-header>
   <div class="container header__inner">
-    <a class="header__home" href={home} aria-label={ui.nav.homeLabel}><Wordmark /></a>
+    <a class="header__home" href={home} aria-label={ui.nav.homeLabel}><Wordmark inline /></a>
 
     <nav class="header__nav" aria-label="Primary" id="primary-nav">
       <ul class="header__list" role="list">
diff --git a/src/components/Wordmark.astro b/src/components/Wordmark.astro
index 61c51ec..f9d7aef 100644
--- a/src/components/Wordmark.astro
+++ b/src/components/Wordmark.astro
@@ -1,16 +1,26 @@
 ---
-/** The wordmark is set in type. No symbol, no colour. */
-interface Props { class?: string }
-const { class: className } = Astro.props;
+/** The logo, as supplied. Sized by its height so it sits on the header's baseline grid.
+    `inline` writes it into the page as a data URI, so it paints with the first frame instead of
+    blinking in on every navigation; the header needs that, the footer does not. */
+import logoInline from '../assets/logo.webp?inline';
+import logoUrl from '../assets/logo.webp?url';
+
+interface Props { class?: string; inline?: boolean }
+const { class: className, inline = false } = Astro.props;
 ---
-<span class:list={['wordmark', className]}>CipherCell</span>
+<img
+  class:list={['wordmark', className]}
+  src={inline ? logoInline : logoUrl}
+  alt="CipherCell"
+  width="311"
+  height="72"
+  loading={inline ? undefined : 'lazy'}
+/>
 
 <style>
   .wordmark {
-    display: inline-block;
-    font-weight: var(--weight-medium);
-    letter-spacing: var(--track-h3);
-    font-size: var(--step-h3);
-    line-height: 1;
+    display: block;
+    height: var(--space-5);
+    width: auto;
   }
 </style>
diff --git a/src/components/verifier/HowItWorks.astro b/src/components/verifier/HowItWorks.astro
index f969322..62a0c36 100644
--- a/src/components/verifier/HowItWorks.astro
+++ b/src/components/verifier/HowItWorks.astro
@@ -166,7 +166,6 @@ const groups = v.groups.map((g, i) => ({ title: g.title, body: g.body, desc: g.d
       right: calc(-1 * (var(--gap) + 200%));
       width: 200%;
       padding: var(--space-6);
-      border: var(--hairline) solid var(--line);
       opacity: 0;
       pointer-events: none;
       transition: opacity var(--dur-slow) var(--ease);
diff --git a/src/components/verifier/Schematic.astro b/src/components/verifier/Schematic.astro
index cfa8897..9a92605 100644
--- a/src/components/verifier/Schematic.astro
+++ b/src/components/verifier/Schematic.astro
@@ -41,6 +41,12 @@ layout.edges.forEach((e) => seen(e.group));
 layout.texts?.forEach((t) => seen(t.group));
 
 const freeEdges = layout.edges.filter((e) => !e.group).map((e, i) => ({ e, points: pts(e), tick: e.tick ? edgeTick(e.points) : null, d: i * 150 }));
+/* A group is lit by its own hover and by the hover of any group that names it in `layout.lit`. */
+const litBy = (key: string) => [key, ...Object.entries(layout.lit ?? {}).filter(([, ks]) => ks.includes(key)).map(([k]) => k)].join(' ');
+const hoverCss = Object.keys(layout.lit ?? {})
+  .map((k) => `.schematic:has(.schematic__group[data-group="${k}"]:hover) .schematic__group[data-lit~="${k}"] { --dim: 1; }`)
+  .join('');
+
 const groups = order.map((g, gi) => {
   const start = 320 + gi * 200;
   const nodes = layout.nodes.filter((n) => n.group === g);
@@ -48,6 +54,7 @@ const groups = order.map((g, gi) => {
   const texts = (layout.texts ?? []).filter((t) => t.group === g);
   return {
     key: g,
+    lit: litBy(g),
     rings: nodes.filter((n) => n.ring).map((n) => ({ x: n.x, y: n.y, r: n.ring!, d: start })),
     edges: edges.map((e, i) => ({ e, points: pts(e), tick: e.tick ? edgeTick(e.points) : null, d: start + 80 + i * 45 })),
     dots: nodes.filter((n) => n.dot !== 'none').map((n, i) => ({ x: n.x, y: n.y, sub: n.dot === 'sub', d: start + 120 + i * 45 })),
@@ -82,7 +89,7 @@ const fontSub = layout.fontSub ?? 15;
   </g>
 
   {groups.map((g) => (
-    <g class="schematic__group" data-group={g.key}>
+    <g class="schematic__group" data-group={g.key} data-lit={g.lit}>
       <g fill="none" stroke="currentColor" stroke-width={stroke} vector-effect="non-scaling-stroke">
         {g.rings.map((r) => <circle class="s-ring" cx={r.x} cy={r.y} r={r.r} stroke-dasharray="2 5" style={`--d: ${r.d}ms`} />)}
         {g.edges.map((f) => (
@@ -154,8 +161,11 @@ const fontSub = layout.fontSub ?? 15;
   /* Hover singles out one node and what belongs to it. */
   @media (hover: hover) and (min-width: 64rem) {
     .schematic__group, .schematic__edges, .schematic__free { transition: opacity var(--dur) var(--ease); }
-    .schematic:has(.schematic__group:hover) .schematic__group:not(:hover) { opacity: 0.28; }
+    .schematic:has(.schematic__group:hover) .schematic__group:not(:hover) { opacity: var(--dim, 0.28); }
     .schematic:has(.schematic__group:hover) .schematic__edges,
     .schematic:has(.schematic__group:hover) .schematic__free { opacity: 0.45; }
   }
 </style>
+
+<!-- Cross-group hovers from `layout.lit`: written out here because the group keys are data. -->
+{hoverCss && <style is:inline set:html={`@media (hover: hover) and (min-width: 64rem) { ${hoverCss} }`} />}
diff --git a/src/components/verifier/diagrams.ts b/src/components/verifier/diagrams.ts
index 995c9fd..149a08d 100644
--- a/src/components/verifier/diagrams.ts
+++ b/src/components/verifier/diagrams.ts
@@ -13,7 +13,9 @@ export interface Node { x: number; y: number; label?: Label; dot?: 'main' | 'sub
 export interface Edge { points: Pt[]; tick?: boolean; faint?: boolean; dashed?: boolean; group?: string }
 export interface Box { x: number; y: number; w: number; h: number; dashed?: boolean }
 export interface Text { x: number; y: number; text: Label; anchor?: 'start' | 'end' | 'middle'; strong?: boolean; group?: string }
-export interface Layout { w: number; h: number; nodes: Node[]; edges: Edge[]; boxes?: Box[]; texts?: Text[]; fontMain?: number; fontSub?: number }
+/* `lit` names, per group, the other groups a hover on it keeps lit: a path that leaves one node
+   and ends at another belongs to both. */
+export interface Layout { w: number; h: number; nodes: Node[]; edges: Edge[]; boxes?: Box[]; texts?: Text[]; fontMain?: number; fontSub?: number; lit?: Record<string, string[]> }
 export interface Pair { wide: Layout; tall: Layout }
 
 const RING = 36;
@@ -124,11 +126,13 @@ export function verdict(g: Groups[2]): Pair {
     nodes: [dot(140, y, L.finding, 'finding'), ...context.nodes, ...ctx.nodes, ...s1.nodes, ...s2.nodes, ...tools.nodes, ...v.nodes, ...outcomes.nodes],
     edges: [
       ...ctx.edges, ...tools.edges, ...outcomes.edges,
-      ...chain([[140, y], [380, y], [640, y], [920, y], [1220, y]]),
-      { points: [[640, y], [640, top], [1220, top], [1220, y]], tick: true },
+      ...chain([[140, y], [380, y], [640, y], [920, y]]),
+      { points: [[920, y], [1220, y]], tick: true, group: 'escalation' },
+      { points: [[640, y], [640, top], [1220, top], [1220, y]], tick: true, group: 'static' },
     ],
-    texts: [...v.texts, { x: 930, y: top - 12, text: L.certain, anchor: 'middle' }, { x: 780, y: y + 30, text: splitTwo(L.unsure), anchor: 'middle' }],
+    texts: [...v.texts, { x: 930, y: top - 12, text: L.certain, anchor: 'middle', group: 'static' }, { x: 780, y: y - 52, text: splitTwo(L.unsure), anchor: 'middle' }],
     fontMain: 19, fontSub: 17,
+    lit: { static: ['verdict'], escalation: ['verdict'], verdict: ['static'] },
   };
   const tall = spine([
     { title: L.finding },
diff --git a/src/components/verifier/types.ts b/src/components/verifier/types.ts
index c024e9c..a66b6a0 100644
--- a/src/components/verifier/types.ts
+++ b/src/components/verifier/types.ts
@@ -3,7 +3,7 @@ export interface Group<L> { title: string; body: string; desc: string; labels: L
 
 export interface OverviewLabels { repo: string; sbom: string[]; sbomSub: string; dt: string[]; dtSub: string; sast: string[]; sastSub: string; poly: string[]; polySub: string; prism: string[]; prismSub: string; report: string }
 export interface ScannersLabels { one: string; oneSub: string; cwe: string[]; cweSub: string; merge: string[]; mergeSub: string; resolve: string[]; resolveSub: string }
-export interface VerdictLabels { finding: string; context: string; ctx: string[]; stage1: string[]; stage2: string; tools: string[]; verdict: string; outcomes: string[]; carries: string; certain: string; unsure: string }
+export interface VerdictLabels { finding: string; context: string; ctx: string[]; stage1: string[]; stage2: string[]; tools: string[]; verdict: string; outcomes: string[]; carries: string; certain: string; unsure: string }
 export interface DependenciesLabels { syft: string; cdxgen: string; sbom: string; sbomSub: string[]; dt: string; dtSub: string[]; vdr: string[]; vdrSub: string; report: string }
 export interface OperateLabels { hub: string; sources: string[]; outputs: string[]; scopes: string[]; scopesTitle: string }
 
diff --git a/src/i18n/ui.ts b/src/i18n/ui.ts
index 1eba4d3..4b74b70 100644
--- a/src/i18n/ui.ts
+++ b/src/i18n/ui.ts
@@ -179,8 +179,8 @@ const en = {
         {
           title: 'Two stages of judgement.',
           body: 'Polygraph reads every finding with its code, its provenance and the file around it, and returns a verdict with a certainty and a priority. A finding it is unsure about, or a false-positive call it is not certain of, goes to a second agent that can read the repository itself, within a fixed budget of requests and tokens. Every verdict carries its reasoning. A cached verdict is reused only when the code it was based on is unchanged.',
-          desc: 'A finding is assembled with its context: provenance, code snippet, file header and an optional dataflow trace. A first stage returns a static verdict. Certain verdicts go straight to the result. Uncertain verdicts, and false-positive verdicts below high certainty, are escalated to a second agent that reads files, lists directories and searches the tree within a bounded budget. The result is true positive, false positive or uncertain, with certainty, priority and reasoning.',
-          labels: { finding: 'Finding', context: 'Context', ctx: ['Provenance', 'Code snippet', 'File header', 'Dataflow trace, optional'], stage1: ['Static', 'verdict'], stage2: 'Escalation', tools: ['Reads files', 'Lists directories', 'Searches the tree', 'Bounded budget'], verdict: 'Verdict', outcomes: ['True positive', 'False positive', 'Uncertain'], carries: 'Certainty, priority, reasoning', certain: 'Certain', unsure: 'Uncertain, or an unsure false positive' },
+          desc: 'A finding is assembled with its context: provenance, code snippet, file header and an optional dataflow trace. A static verdict agent returns a first verdict. Certain verdicts go straight to the result. Uncertain verdicts, and false-positive verdicts below high certainty, are escalated to an escalation agent that reads files, lists directories and searches the tree within a bounded budget. The result is true positive, false positive or uncertain, with certainty, priority and reasoning.',
+          labels: { finding: 'Finding', context: 'Context', ctx: ['Provenance', 'Code snippet', 'File header', 'Dataflow trace, optional'], stage1: ['Static verdict', 'Agent'], stage2: ['Escalation', 'Agent'], tools: ['Reads files', 'Lists directories', 'Searches the tree', 'Bounded budget'], verdict: 'Verdict', outcomes: ['True positive', 'False positive', 'Uncertain'], carries: 'Certainty, priority, reasoning', certain: 'Certain', unsure: 'Uncertain, or an unsure false positive' },
         },
         {
           title: 'The dependency side.',
@@ -397,8 +397,8 @@ const de: typeof en = {
         {
           title: 'Urteil in zwei Stufen.',
           body: 'Polygraph liest jeden Fund mit seinem Code, seiner Herkunft und der Datei darum herum und gibt ein Urteil mit Sicherheit und Priorität zurück. Ein Fund, bei dem es unsicher ist, oder ein Fehlalarm-Urteil, dessen es sich nicht sicher ist, geht an einen zweiten Agenten, der das Repository selbst lesen kann, innerhalb eines festen Budgets an Anfragen und Tokens. Jedes Urteil trägt seine Begründung. Ein gemerktes Urteil wird nur wiederverwendet, wenn der Code, auf dem es beruht, unverändert ist.',
-          desc: 'Ein Fund wird mit seinem Kontext zusammengestellt: Herkunft, Code-Ausschnitt, Dateikopf und optional eine Datenfluss-Spur. Eine erste Stufe liefert ein statisches Urteil. Sichere Urteile gehen direkt ins Ergebnis. Unsichere Urteile und Fehlalarm-Urteile unterhalb hoher Sicherheit werden an einen zweiten Agenten eskaliert, der Dateien liest, Verzeichnisse auflistet und den Baum durchsucht, innerhalb eines begrenzten Budgets. Das Ergebnis ist echt, Fehlalarm oder unsicher, mit Sicherheit, Priorität und Begründung.',
-          labels: { finding: 'Fund', context: 'Kontext', ctx: ['Herkunft', 'Code-Ausschnitt', 'Dateikopf', 'Datenfluss-Spur, optional'], stage1: ['Statisches', 'Urteil'], stage2: 'Eskalation', tools: ['Liest Dateien', 'Listet Verzeichnisse', 'Durchsucht den Baum', 'Begrenztes Budget'], verdict: 'Urteil', outcomes: ['Echt', 'Fehlalarm', 'Unsicher'], carries: 'Sicherheit, Priorität, Begründung', certain: 'Sicher', unsure: 'Unsicher oder unsicherer Fehlalarm' },
+          desc: 'Ein Fund wird mit seinem Kontext zusammengestellt: Herkunft, Code-Ausschnitt, Dateikopf und optional eine Datenfluss-Spur. Ein Agent für statische Urteile liefert ein erstes Urteil. Sichere Urteile gehen direkt ins Ergebnis. Unsichere Urteile und Fehlalarm-Urteile unterhalb hoher Sicherheit werden an einen Eskalations-Agenten weitergegeben, der Dateien liest, Verzeichnisse auflistet und den Baum durchsucht, innerhalb eines begrenzten Budgets. Das Ergebnis ist echt, Fehlalarm oder unsicher, mit Sicherheit, Priorität und Begründung.',
+          labels: { finding: 'Fund', context: 'Kontext', ctx: ['Herkunft', 'Code-Ausschnitt', 'Dateikopf', 'Datenfluss-Spur, optional'], stage1: ['Agent für', 'statische Urteile'], stage2: ['Eskalations-', 'Agent'], tools: ['Liest Dateien', 'Listet Verzeichnisse', 'Durchsucht den Baum', 'Begrenztes Budget'], verdict: 'Urteil', outcomes: ['Echt', 'Fehlalarm', 'Unsicher'], carries: 'Sicherheit, Priorität, Begründung', certain: 'Sicher', unsure: 'Unsicher oder unsicherer Fehlalarm' },
         },
         {
           title: 'Die Seite der Abhängigkeiten.',