feat(settings/profile): collapsible profile card + share sheet

Collapsible profile card:
- Starts collapsed if profile already exists (shows name + URL slug)
- Expands/collapses via chevron toggle row
- Auto-collapses after Save Profile succeeds

Share sheet on Product Recommendations:
- ↗ Share button appears once a valid slug is set
- Options: Copy link (clipboard, shows ✅ feedback), WhatsApp deep link,
  and native Web Share API ("More options") when browser supports it
- Backdrop click closes the sheet

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/settings/profile/page.tsx

@@ -33,6 +33,9 @@ export default function ProfileSettingsPage() {
   const [loading, setLoading] = useState(true);
   const [saving, setSaving] = useState(false);
   const [saveMsg, setSaveMsg] = useState("");
+  const [profileExpanded, setProfileExpanded] = useState(true);
+  const [showShareSheet, setShowShareSheet] = useState(false);
+  const [copied, setCopied] = useState(false);
 
   const [slug, setSlug] = useState("");
   const [displayName, setDisplayName] = useState("");
@@ -58,12 +61,15 @@ export default function ProfileSettingsPage() {
         setDisplayName(pd.profile.display_name);
         setBio(pd.profile.bio ?? "");
         setIsPublic(pd.profile.is_public);
+        setProfileExpanded(false); // already set up — start collapsed
       }
       setProducts(prods.items || []);
       setLoading(false);
     }).catch(() => setLoading(false));
   }, []);
 
+  const profileUrl = typeof window !== "undefined" && slug ? `${window.location.origin}/m/${slug}` : "";
+
   async function saveProfile() {
     setSaving(true);
     setSaveMsg("");
@@ -75,13 +81,32 @@ export default function ProfileSettingsPage() {
     const d = await r.json();
     if (r.ok) {
       setProfile(d.profile);
-      setSaveMsg(`Saved! View at /m/${d.profile.slug}`);
+      setSaveMsg("Saved!");
+      setProfileExpanded(false); // collapse after save
     } else {
       setSaveMsg(d.error || "Save failed");
     }
     setSaving(false);
   }
 
+  async function copyLink() {
+    if (!profileUrl) return;
+    await navigator.clipboard.writeText(profileUrl);
+    setCopied(true);
+    setTimeout(() => setCopied(false), 2000);
+  }
+
+  function shareViaWhatsApp() {
+    const text = encodeURIComponent(`Check out my baby product recommendations! ${profileUrl}`);
+    window.open(`https://wa.me/?text=${text}`, "_blank");
+  }
+
+  async function shareNative() {
+    if (navigator.share) {
+      await navigator.share({ title: `${displayName}'s baby picks`, url: profileUrl });
+    }
+  }
+
   function resetProductForm() {
     setPTitle(""); setPUrl(""); setPDesc(""); setPImageUrl(""); setPCategory("general");
     setShowAddProduct(false); setEditingProduct(null);
@@ -162,65 +187,93 @@ export default function ProfileSettingsPage() {
       </div>
 
       <div className="px-4 space-y-4">
-        {/* Profile section */}
+        {/* Profile section — collapsible */}
-        <div className="bg-white dark:bg-gray-800 rounded-2xl p-4 shadow-sm">
+        <div className="bg-white dark:bg-gray-800 rounded-2xl shadow-sm overflow-hidden">
-          <h2 className="font-semibold text-gray-800 dark:text-white mb-4">Profile</h2>
+          {/* Always-visible header row */}
-
-          <label className="block text-sm text-gray-500 dark:text-gray-400 mb-1">Display Name</label>
-          <input
-            value={displayName}
-            onChange={e => setDisplayName(e.target.value)}
-            className={`${inputClass} mb-3`}
-            placeholder="Priya Sharma"
-          />
-
-          <label className="block text-sm text-gray-500 dark:text-gray-400 mb-1">Your Page URL</label>
-          <div className="flex items-center gap-1 border border-gray-200 dark:border-gray-600 rounded-xl px-3 py-2.5 text-sm mb-1 bg-white dark:bg-gray-700 focus-within:ring-2 focus-within:ring-rose-300">
-            <span className="text-gray-400 text-xs whitespace-nowrap">{baseUrl}/m/</span>
-            <input
-              value={slug}
-              onChange={e => setSlug(e.target.value.toLowerCase().replace(/[^a-z0-9-]/g, ""))}
-              className="flex-1 bg-transparent outline-none dark:text-white text-sm"
-              placeholder="priya-sharma"
-            />
-          </div>
-          {slug && !slugValid && (
-            <p className="text-xs text-red-500 mb-2">3–40 chars, lowercase letters, numbers, hyphens only</p>
-          )}
-
-          <label className="block text-sm text-gray-500 dark:text-gray-400 mb-1 mt-3">
-            Bio <span className="text-gray-400">({bio.length}/200)</span>
-          </label>
-          <textarea
-            value={bio}
-            onChange={e => setBio(e.target.value.slice(0, 200))}
-            rows={3}
-            className={`${inputClass} mb-3 resize-none`}
-            placeholder="New mama sharing what works for us 💕"
-          />
-
-          <label className="flex items-center gap-3 cursor-pointer mb-4">
-            <div
-              onClick={() => setIsPublic(v => !v)}
-              className={`w-10 h-6 rounded-full transition-colors relative cursor-pointer ${isPublic ? "bg-rose-400" : "bg-gray-300 dark:bg-gray-600"}`}
-            >
-              <div className={`absolute top-1 w-4 h-4 bg-white rounded-full shadow transition-transform ${isPublic ? "translate-x-5" : "translate-x-1"}`} />
-            </div>
-            <span className="text-sm text-gray-700 dark:text-gray-300">Make my page public</span>
-          </label>
-
           <button
-            onClick={saveProfile}
+            onClick={() => setProfileExpanded(v => !v)}
-            disabled={saving || !displayName || !slugValid}
+            className="w-full flex items-center justify-between p-4"
-            className="w-full bg-rose-400 text-white rounded-xl py-2.5 font-medium text-sm disabled:opacity-50 active:scale-95 transition-transform"
           >
-            {saving ? "Saving…" : "Save Profile"}
+            <div className="flex items-center gap-3">
+              <span className="text-xl">👤</span>
+              <div className="text-left">
+                <p className="font-semibold text-gray-800 dark:text-white text-sm">
+                  {displayName || "Set up your profile"}
+                </p>
+                {!profileExpanded && slug && (
+                  <p className="text-xs text-gray-400">{baseUrl}/m/{slug}</p>
+                )}
+              </div>
+            </div>
+            <span className={`text-gray-400 text-sm transition-transform ${profileExpanded ? "rotate-180" : ""}`}>▼</span>
           </button>
 
-          {saveMsg && (
+          {/* Expanded form */}
-            <p className={`text-xs mt-2 text-center ${saveMsg.startsWith("Saved") ? "text-green-600 dark:text-green-400" : "text-red-500"}`}>
+          {profileExpanded && (
-              {saveMsg}
+            <div className="px-4 pb-4 space-y-3 border-t border-gray-100 dark:border-gray-700 pt-3">
-            </p>
+              <div>
+                <label className="block text-sm text-gray-500 dark:text-gray-400 mb-1">Display Name</label>
+                <input
+                  value={displayName}
+                  onChange={e => setDisplayName(e.target.value)}
+                  className={inputClass}
+                  placeholder="Priya Sharma"
+                />
+              </div>
+
+              <div>
+                <label className="block text-sm text-gray-500 dark:text-gray-400 mb-1">Your Page URL</label>
+                <div className="flex items-center gap-1 border border-gray-200 dark:border-gray-600 rounded-xl px-3 py-2.5 text-sm bg-white dark:bg-gray-700 focus-within:ring-2 focus-within:ring-rose-300">
+                  <span className="text-gray-400 text-xs whitespace-nowrap">{baseUrl}/m/</span>
+                  <input
+                    value={slug}
+                    onChange={e => setSlug(e.target.value.toLowerCase().replace(/[^a-z0-9-]/g, ""))}
+                    className="flex-1 bg-transparent outline-none dark:text-white text-sm"
+                    placeholder="priya-sharma"
+                  />
+                </div>
+                {slug && !slugValid && (
+                  <p className="text-xs text-red-500 mt-1">3–40 chars, lowercase letters, numbers, hyphens only</p>
+                )}
+              </div>
+
+              <div>
+                <label className="block text-sm text-gray-500 dark:text-gray-400 mb-1">
+                  Bio <span className="text-gray-400">({bio.length}/200)</span>
+                </label>
+                <textarea
+                  value={bio}
+                  onChange={e => setBio(e.target.value.slice(0, 200))}
+                  rows={3}
+                  className={`${inputClass} resize-none`}
+                  placeholder="New mama sharing what works for us 💕"
+                />
+              </div>
+
+              <label className="flex items-center gap-3 cursor-pointer">
+                <div
+                  onClick={() => setIsPublic(v => !v)}
+                  className={`w-10 h-6 rounded-full transition-colors relative cursor-pointer ${isPublic ? "bg-rose-400" : "bg-gray-300 dark:bg-gray-600"}`}
+                >
+                  <div className={`absolute top-1 w-4 h-4 bg-white rounded-full shadow transition-transform ${isPublic ? "translate-x-5" : "translate-x-1"}`} />
+                </div>
+                <span className="text-sm text-gray-700 dark:text-gray-300">Make my page public</span>
+              </label>
+
+              <button
+                onClick={saveProfile}
+                disabled={saving || !displayName || !slugValid}
+                className="w-full bg-rose-400 text-white rounded-xl py-2.5 font-medium text-sm disabled:opacity-50 active:scale-95 transition-transform"
+              >
+                {saving ? "Saving…" : "Save Profile"}
+              </button>
+
+              {saveMsg && (
+                <p className={`text-xs text-center ${saveMsg.startsWith("Saved") ? "text-green-600 dark:text-green-400" : "text-red-500"}`}>
+                  {saveMsg}
+                </p>
+              )}
+            </div>
           )}
         </div>
 
@@ -228,12 +281,58 @@ export default function ProfileSettingsPage() {
         <div className="bg-white dark:bg-gray-800 rounded-2xl p-4 shadow-sm">
           <div className="flex items-center justify-between mb-4">
             <h2 className="font-semibold text-gray-800 dark:text-white">Product Recommendations</h2>
-            <button
+            <div className="flex items-center gap-2">
-              onClick={() => { resetProductForm(); setShowAddProduct(true); }}
+              {/* Share button — only visible when profile has a slug */}
-              className="text-sm text-rose-500 font-medium"
+              {slug && slugValid && (
-            >
+                <div className="relative">
-              + Add
+                  <button
-            </button>
+                    onClick={() => setShowShareSheet(v => !v)}
+                    className="flex items-center gap-1 px-2.5 py-1.5 rounded-xl bg-rose-50 dark:bg-rose-900/20 text-rose-500 text-sm font-medium"
+                  >
+                    <span>↗</span>
+                    <span>Share</span>
+                  </button>
+
+                  {showShareSheet && (
+                    <>
+                      <div className="fixed inset-0 z-30" onClick={() => setShowShareSheet(false)} />
+                      <div className="absolute right-0 top-9 z-40 bg-white dark:bg-gray-800 rounded-2xl shadow-xl border border-gray-100 dark:border-gray-700 p-3 w-52 space-y-1">
+                        <p className="text-xs text-gray-400 px-2 pb-1">Share your page</p>
+                        <button
+                          onClick={() => { copyLink(); setShowShareSheet(false); }}
+                          className="w-full flex items-center gap-3 px-3 py-2.5 rounded-xl hover:bg-gray-50 dark:hover:bg-gray-700 text-sm text-gray-700 dark:text-gray-200"
+                        >
+                          <span className="text-lg">{copied ? "✅" : "📋"}</span>
+                          {copied ? "Copied!" : "Copy link"}
+                        </button>
+                        <button
+                          onClick={() => { shareViaWhatsApp(); setShowShareSheet(false); }}
+                          className="w-full flex items-center gap-3 px-3 py-2.5 rounded-xl hover:bg-gray-50 dark:hover:bg-gray-700 text-sm text-gray-700 dark:text-gray-200"
+                        >
+                          <span className="text-lg">💬</span>
+                          WhatsApp
+                        </button>
+                        {typeof navigator !== "undefined" && "share" in navigator && (
+                          <button
+                            onClick={() => { shareNative(); setShowShareSheet(false); }}
+                            className="w-full flex items-center gap-3 px-3 py-2.5 rounded-xl hover:bg-gray-50 dark:hover:bg-gray-700 text-sm text-gray-700 dark:text-gray-200"
+                          >
+                            <span className="text-lg">📤</span>
+                            More options
+                          </button>
+                        )}
+                      </div>
+                    </>
+                  )}
+                </div>
+              )}
+              <button
+                onClick={() => { resetProductForm(); setShowAddProduct(true); }}
+                className="text-sm text-rose-500 font-medium px-2.5 py-1.5"
+              >
+                + Add
+              </button>
+            </div>
           </div>
 
           {/* Add/Edit form */}