diff --git a/content/sync.md b/content/sync.md
index 8b33b93..4103694 100644
--- a/content/sync.md
+++ b/content/sync.md
@@ -14,6 +14,14 @@ The default store is in memory and is lost on restart. Set `SYNC_S3_BUCKET` (and
 
 Sync does not run agents, merge pull requests, or execute jobs. Workers that claim a job are what run the payload.
 
+## Compare-and-swap
+
+CAS is compare-and-swap. Sync keeps JSON documents, not rows in a SQL database. Each document has an ETag, a version stamp from the last write.
+
+An update sends that stamp as `If-Match`. The write succeeds only if the document is still the version you read. If another worker wrote first, Sync returns `412` and you read again.
+
+That is how two agents can share a session or claim a job without silently overwriting each other.
+
 ## MCP companion
 
 MCP clients should not call that HTTP API themselves. [sync-mcp](https://github.com/aixgo-dev/sync-mcp) is a stdio MCP server that wraps Sync and exposes sessions, messages and jobs as tools.
diff --git a/data/sync.yaml b/data/sync.yaml
index 323a000..ff33d92 100644
--- a/data/sync.yaml
+++ b/data/sync.yaml
@@ -16,7 +16,7 @@ hero:
 
 stats:
   - value: "CAS"
-    label: "JSON objects with If-Match / ETag"
+    label: "Compare-and-swap: a write is rejected if the document changed since you read it"
     accent: true
   - value: "org/project"
     label: "Tenant path and API-key scope"
@@ -51,7 +51,7 @@ cannot:
 roadmap:
   - version: "v0.1.0"
     state: "done"
-    item: "CAS store, tenant keys, HTTP sessions, messages and jobs"
+    item: "Compare-and-swap store, tenant keys, HTTP sessions, messages and jobs"
   - version: "next"
     state: "progress"
     item: "Desired-state GET/PUT, session attach, device register"
diff --git a/layouts/_default/products.html b/layouts/_default/products.html
index d67d46a..9e8270b 100644
--- a/layouts/_default/products.html
+++ b/layouts/_default/products.html
@@ -25,13 +25,13 @@ <h1 class="ax-hero__title">{{ .Title }}</h1>
   <section class="ax-section ax-section--alt ax-textured">
     <div class="ax-wrap">
       <div class="ax-grid ax-grid--2">
-        <a class="ax-card sibling-card" href="/">
+        <a class="ax-card ax-listcard sibling-card" href="/">
           <h2>Framework</h2>
           <p>The Go framework for building agents. One module, one binary.</p>
           <p class="ax-microlabel sibling-status">MIT</p>
         </a>
         {{- range hugo.Data.products }}
-        <a class="ax-card sibling-card" href="{{ .url }}">
+        <a class="ax-card ax-listcard sibling-card" href="{{ .url }}">
           <h2>{{ .name }}</h2>
           <p>{{ .description }}</p>
           <p class="ax-microlabel sibling-status">{{ .status }}</p>
diff --git a/layouts/index.html b/layouts/index.html
index e02e99d..1f04f44 100644
--- a/layouts/index.html
+++ b/layouts/index.html
@@ -206,7 +206,7 @@ <h2>Aixgo builds agents. Code, Aixgate and Sync handle the rest.</h2>
 
       <div class="ax-grid ax-grid--3">
         {{- range hugo.Data.products }}
-        <a class="ax-card sibling-card" href="{{ .url }}">
+        <a class="ax-card ax-listcard sibling-card" href="{{ .url }}">
           <h3>{{ .name }}</h3>
           <p>{{ .description }}</p>
           <p class="ax-microlabel sibling-status">{{ .status }}</p>
diff --git a/static/css/main.css b/static/css/main.css
index 919e17b..1c13127 100644
--- a/static/css/main.css
+++ b/static/css/main.css
@@ -431,6 +431,7 @@
   border-radius: var(--ax-r-lg);
   padding: var(--ax-s-5);
   box-shadow: var(--ax-e-1);
+  overflow-wrap: break-word;
   transition:
     border-color var(--ax-dur-1) var(--ax-ease),
     box-shadow var(--ax-dur-2) var(--ax-ease),
diff --git a/static/css/sections.css b/static/css/sections.css
index 7b74e93..07643c7 100644
--- a/static/css/sections.css
+++ b/static/css/sections.css
@@ -152,6 +152,10 @@
   letter-spacing: -0.028em;
   line-height: 1.04;
   color: var(--ax-text);
+  /* Global h1 uses text-wrap: balance, which will keep a short title on
+     one line even when it overflows. The hero clips overflow, so wrap. */
+  text-wrap: wrap;
+  overflow-wrap: break-word;
 }
 
 .ax-hero .ax-rule { margin-top: 1.25rem; }
@@ -955,6 +959,7 @@
 .ax-listcard {
   display: block;
   text-decoration: none;
+  color: inherit;
 }
 
 .ax-listcard__meta { margin-bottom: var(--ax-s-3); }