diff --git a/docs/snippets/hover-video.jsx b/docs/snippets/hover-video.jsx
new file mode 100644
index 000000000..a52660c91
--- /dev/null
+++ b/docs/snippets/hover-video.jsx
@@ -0,0 +1,62 @@
+export const HoverVideo = ({ src, poster, className }) => {
+  const videoRef = useRef(null);
+  const [muted, setMuted] = useState(true);
+
+  // Lazy initializer, not a post-mount effect: with useState(false) the first
+  // committed render would emit `<video src autoPlay loop>` and only then pull the
+  // attributes, so a reduce-motion visitor has already started fetching the file.
+  const [reduced, setReduced] = useState(
+    () =>
+      typeof window !== "undefined" &&
+      typeof window.matchMedia === "function" &&
+      window.matchMedia("(prefers-reduced-motion: reduce)").matches,
+  );
+  useEffect(() => {
+    const query = window.matchMedia("(prefers-reduced-motion: reduce)");
+    const onChange = () => setReduced(query.matches);
+    query.addEventListener("change", onChange);
+    return () => query.removeEventListener("change", onChange);
+  }, []);
+
+  // React can drop src/autoPlay/loop from the DOM, but that neither pauses a
+  // playing element nor aborts its resource: pause(), removeAttribute("src") and
+  // load() are all required when the preference flips to reduce mid-session.
+  useEffect(() => {
+    if (!reduced) return;
+    const video = videoRef.current;
+    if (!video) return;
+    video.pause();
+    video.removeAttribute("src");
+    video.load();
+  }, [reduced]);
+
+  const hear = () => {
+    if (reduced) return;
+    const video = videoRef.current;
+    if (!video) return;
+    setMuted(false);
+    video.muted = false;
+    video.play().catch(() => {});
+  };
+  const silence = () => {
+    setMuted(true);
+    const video = videoRef.current;
+    if (video) video.muted = true;
+  };
+
+  return (
+    <video
+      ref={videoRef}
+      className={className}
+      src={reduced ? undefined : src}
+      poster={poster}
+      autoPlay={!reduced}
+      muted={muted}
+      loop={!reduced}
+      playsInline
+      preload="none"
+      onMouseEnter={hear}
+      onMouseLeave={silence}
+    />
+  );
+};
diff --git a/docs/thirty-days.mdx b/docs/thirty-days.mdx
index 84ae3b8e9..c47d2f67a 100644
--- a/docs/thirty-days.mdx
+++ b/docs/thirty-days.mdx
@@ -4,6 +4,8 @@ sidebarTitle: 30 Days of HyperFrames
 description: "The official 30 Days of HyperFrames lessons, collected in one place as the series is published."
 ---
 
+import { HoverVideo } from "/snippets/hover-video.jsx";
+
 
 One lesson a day, each one built and rendered before it was posted. Every day below links to its original post for the prompt and the discussion; where the film or a frame from it is published, you can see the result here first.
 
@@ -29,25 +31,25 @@ Days 1 to 9 cover the inputs: a repo, a track, a topic, a speaker, a design file
 
   </Card>
   <Card title="Day 3 — PR-to-Video" href="https://x.com/HeyGen/status/2074954182583554051">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-03.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-03.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-03-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-03.jpg" />
 
     Explain an open pull request as a short video. Plays in full [above](#three-lessons-in-full).
 
   </Card>
   <Card title="Day 4 — Music-to-Video" href="https://x.com/HeyGen/status/2075262117964615956">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-04.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-04.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-04-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-04.jpg" />
 
     Build a video around a track and its beat. Plays in full [above](#three-lessons-in-full).
 
   </Card>
   <Card title="Day 5 — Faceless explainer" href="https://x.com/HeyGen/status/2075682104302882908">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-05.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-05.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-05-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-05.jpg" />
 
     Turn a topic into a designed explainer without footage. The visuals are invented per scene.
 
   </Card>
   <Card title="Day 6 — Talking-head recut" href="https://x.com/HeyGen/status/2075998619325604238">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-06.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-06.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-06-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-06.jpg" />
 
     Add synchronized graphics to an existing speaker video. The source clip plays untouched underneath.
 
@@ -59,7 +61,7 @@ Days 1 to 9 cover the inputs: a repo, a track, a topic, a speaker, a design file
 
   </Card>
   <Card title="Day 8 — Music and SFX with the HeyGen CLI" href="https://x.com/HeyGen/status/2076719036742922504">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-08.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-08.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-08-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-08.jpg" />
 
     Find and use audio from the command line, then let the mix duck itself under the narration.
 
@@ -84,13 +86,13 @@ Days 10 to 19 are about steering: how you ask, what you inspect, and what you fi
 
   </Card>
   <Card title="Day 11 — Repurpose an existing video" href="https://x.com/HeyGen/status/2077798995762823593">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-11.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-11.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-11-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-11.jpg" />
 
     Extract useful patterns from a reference instead of describing them from memory.
 
   </Card>
   <Card title="Day 12 — Dynamic captions" href="https://x.com/HeyGen/status/2078190361932103716">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-12.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-12.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-12-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-12.jpg" />
 
     Make captions part of the visual design rather than a track laid on top.
 
@@ -114,25 +116,25 @@ Days 10 to 19 are about steering: how you ask, what you inspect, and what you fi
 
   </Card>
   <Card title="Day 16 — Media use" href="https://x.com/HeyGen/status/2079609229737111978">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-16.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-16.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-16-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-16.jpg" />
 
     Work with the available asset libraries, and control how each one crops and fits.
 
   </Card>
   <Card title="Day 17 — Storyboard" href="https://x.com/HeyGen/status/2080012076454719554">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-17.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-17.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-17-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-17.jpg" />
 
     Agree on the sequence before building every scene, so revisions land on the plan rather than the render.
 
   </Card>
   <Card title="Day 18 — HyperFrames in Video Agent" href="https://x.com/HeyGen/status/2080407266755510452">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-18.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-18.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-18-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-18.jpg" />
 
     Create with HyperFrames inside HeyGen Video Agent.
 
   </Card>
   <Card title="Day 19 — Background removal" href="https://x.com/HeyGen/status/2080762012330807438">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-19.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-19.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-19-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-19.jpg" />
 
     Use alpha channels to layer subjects into a scene, with the matte holding while the subject moves.
 
@@ -157,25 +159,25 @@ Days 20 to 30 move from one composition to a repeatable pipeline: reusable block
 
   </Card>
   <Card title="Day 22 — Components Catalog" href="https://x.com/HyperFrames_/status/2081798071353278651">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-22.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-22.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-22-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-22.jpg" />
 
     Add reusable scenes and effects instead of rebuilding them each time.
 
   </Card>
   <Card title="Day 23 — Templates and variables" href="https://x.com/HyperFrames_/status/2082197435246600341">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-23.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-23.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-23-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-23.jpg" />
 
     Turn one composition into repeatable versions. Plays in full [above](#three-lessons-in-full).
 
   </Card>
   <Card title="Day 24 — Color grading" href="https://x.com/HyperFrames_/status/2082536413829235004">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-24.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-24.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-24-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-24.jpg" />
 
     Correct or stylize images and footage in code, and bring your own LUT packs.
 
   </Card>
   <Card title="Day 25 — Prompt Guide" href="https://x.com/HyperFrames_/status/2082892893027749917">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-25.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-25.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-25-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-25.jpg" />
 
     Find practical language and examples for directing an agent. The written guide lives in these docs, at [Prompting overview](/prompting/overview).
 
@@ -187,19 +189,19 @@ Days 20 to 30 move from one composition to a repeatable pipeline: reusable block
 
   </Card>
   <Card title="Day 27 — Deploy" href="https://x.com/HyperFrames_/status/2083633492894900456">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-27.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-27.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-27-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-27.jpg" />
 
     Run rendering on your own cloud infrastructure. See [Deploy](/guides/deploy) for the four render routes.
 
   </Card>
   <Card title="Day 28 — Contribute to the Catalog" href="https://x.com/HyperFrames_/status/2084070152975634743">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-28.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-28.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-28-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-28.jpg" />
 
     Publish reusable building blocks for other creators. The [Catalog](/catalog) lists what has landed so far.
 
   </Card>
   <Card title="Day 29 — Components update" href="https://x.com/HyperFrames_/status/2084338269194732003">
-    <video className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-29.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-29.jpg" autoPlay muted loop playsInline preload="none" />
+    <HoverVideo className="w-full aspect-video rounded-lg object-cover bg-zinc-100 dark:bg-zinc-900" src="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-29-s.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/showcase/thirty-days-day-29.jpg" />
 
     Combine the expanded component set in a single project.