diff --git a/playground/play.html b/playground/play.html
index bb75bc7..50b5964 100644
--- a/playground/play.html
+++ b/playground/play.html
@@ -83,6 +83,7 @@
           <span class="ico-help" aria-hidden="true"></span><span class="lbl">How to use</span>
         </button>
         <a
+          id="feedback"
           href="mailto:hello@posecode.org?subject=Posecode%20Feedback"
           class="btn ghost"
           aria-label="Feedback"
@@ -93,10 +94,11 @@
         <button
           id="share"
           class="btn ghost"
-          aria-label="Share"
+          aria-label="Copy link"
           title="Copy a shareable link that renders this exact movement"
         >
-          <span class="ico-link" aria-hidden="true"></span><span class="lbl">Share</span>
+          <span class="ico-link" aria-hidden="true"></span
+          ><span class="lbl" aria-live="polite">Share</span>
         </button>
         <button
           id="copy-prompt"
diff --git a/playground/src/main.ts b/playground/src/main.ts
index 47f79b9..8277164 100644
--- a/playground/src/main.ts
+++ b/playground/src/main.ts
@@ -426,20 +426,46 @@ speed.addEventListener("change", () => viewer?.setSpeed(Number(speed.value)));
 // --- Button label feedback ---
 // Swap a button's label (the inner `.lbl` span when present, else the button
 // text) to a transient message, then restore it.
-function flash(btn: HTMLElement, message: string): void {
+const flashTimers = new WeakMap<HTMLElement, number>();
+
+function flash(
+  btn: HTMLElement,
+  message: string,
+  status: "pending" | "success" | "error",
+  duration = 4000,
+): void {
   const el = btn.querySelector<HTMLElement>(".lbl") ?? btn;
-  const prev = el.textContent;
+  const previousTimer = flashTimers.get(btn);
+  if (previousTimer !== undefined) window.clearTimeout(previousTimer);
+
+  const defaultLabel = el.dataset.defaultLabel ?? el.textContent ?? "";
+  const defaultAriaLabel =
+    btn.dataset.defaultAriaLabel ?? btn.getAttribute("aria-label") ?? "";
+  el.dataset.defaultLabel = defaultLabel;
+  btn.dataset.defaultAriaLabel = defaultAriaLabel;
   el.textContent = message;
-  window.setTimeout(() => (el.textContent = prev), 1500);
+  btn.dataset.status = status;
+  btn.setAttribute("aria-label", message);
+  if (duration === 0) return;
+
+  const timer = window.setTimeout(() => {
+    el.textContent = defaultLabel;
+    delete btn.dataset.status;
+    if (defaultAriaLabel === "") btn.removeAttribute("aria-label");
+    else btn.setAttribute("aria-label", defaultAriaLabel);
+    flashTimers.delete(btn);
+  }, duration);
+  flashTimers.set(btn, timer);
 }
 
 // --- Copy LLM prompt (topbar) ---
 async function copyPrompt(btn: HTMLButtonElement): Promise<void> {
+  flash(btn, "Copying…", "pending", 0);
   try {
     await navigator.clipboard.writeText(llmPrompt);
-    flash(btn, "Copied ✓");
+    flash(btn, "Copied ✓", "success");
   } catch {
-    flash(btn, "Copy failed");
+    flash(btn, "Copy failed", "error");
   }
 }
 copyBtn.addEventListener("click", () => copyPrompt(copyBtn));
@@ -449,6 +475,7 @@ copyBtn.addEventListener("click", () => copyPrompt(copyBtn));
 // (so it's bookmarkable), and copy the full link to the clipboard.
 async function shareLink(): Promise<void> {
   if (!editorApi) return; // editor still loading; nothing to snapshot yet
+  flash(shareBtn, "Copying…", "pending", 0);
   try {
     const source = editorApi.getValue();
     const path = buildNicePlayPath(source);
@@ -456,7 +483,7 @@ async function shareLink(): Promise<void> {
     const url = `${location.origin}${path}${hash}`;
     history.replaceState(null, "", `${path}${hash}`);
     await navigator.clipboard.writeText(url);
-    flash(shareBtn, "Link copied ✓");
+    flash(shareBtn, "Link copied ✓", "success");
   } catch (err) {
     const message =
       err instanceof TypeError
@@ -464,7 +491,7 @@ async function shareLink(): Promise<void> {
         : err instanceof RangeError
           ? "Too long to link"
           : "Copy failed";
-    flash(shareBtn, message);
+    flash(shareBtn, message, "error");
   }
 }
 shareBtn.addEventListener("click", shareLink);
diff --git a/playground/src/style.css b/playground/src/style.css
index 7e9306d..ba67cbb 100644
--- a/playground/src/style.css
+++ b/playground/src/style.css
@@ -1421,8 +1421,32 @@ select:hover {
 
 @media (max-width: 860px) {
   .topbar { padding: 12px; }
-  .topbar-actions { display: grid; grid-template-columns: 1fr auto auto; gap: 6px; }
+  .topbar-actions {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr) auto auto;
+    align-items: stretch;
+    gap: 6px;
+  }
   .lib-btn { min-height: 42px; }
+  #new-doc, #how-to, #feedback, #share {
+    min-height: 42px;
+  }
+  #feedback, #share {
+    justify-content: center;
+  }
+  #share {
+    grid-column: 2 / -1;
+  }
+  #share .lbl {
+    display: inline;
+  }
+  #share:not([data-status]) .lbl {
+    font-size: 0;
+  }
+  #share:not([data-status]) .lbl::after {
+    content: "Copy link";
+    font-size: 13px;
+  }
   #copy-prompt { grid-column: 1 / -1; min-height: 42px; }
   .intro { padding-left: 12px; padding-right: 12px; }
   .layout { grid-template-columns: 1fr; }
@@ -1430,3 +1454,19 @@ select:hover {
   .speed > span, .loop > span { display: none; }
   .clock { padding-left: 8px; min-width: 40px; }
 }
+
+#share[data-status="success"] {
+  color: var(--bg);
+  background: var(--accent);
+  border-color: var(--accent);
+}
+
+#share[data-status="pending"] {
+  color: var(--accent);
+  border-color: var(--accent);
+}
+
+#share[data-status="error"] {
+  color: #ffb4a9;
+  border-color: #a94b41;
+}