Add collapsible sidebar with icon-only skinny mode

- Toggle with ‹‹/›› button; state persists in localStorage
- Collapsed (56px): icons only, nav labels as native title tooltips,
  project list shows status dots only, user avatar centered
- Smooth 200ms cubic-bezier width transition; no flash on initial load
- Expanded (220px): unchanged visual layout

Made-with: Cursor

components/layout/vibn-sidebar.tsx

@@ -22,20 +22,38 @@ function StatusDot({ status }: { status?: string }) {
     : "#d4a04a";
   const anim = status === "building" ? "vibn-breathe 2.5s ease infinite" : "none";
   return (
-    <span
-      style={{
-        width: 7, height: 7, borderRadius: "50%",
-        background: color, display: "inline-block",
-        flexShrink: 0, animation: anim,
-      }}
-    />
+    <span style={{
+      width: 7, height: 7, borderRadius: "50%",
+      background: color, display: "inline-block",
+      flexShrink: 0, animation: anim,
+    }} />
   );
 }
 
+const COLLAPSED_KEY = "vibn_sidebar_collapsed";
+const COLLAPSED_W = 56;
+const EXPANDED_W = 220;
+
 export function VIBNSidebar({ workspace }: VIBNSidebarProps) {
   const pathname = usePathname();
   const { data: session } = useSession();
   const [projects, setProjects] = useState<Project[]>([]);
+  const [collapsed, setCollapsed] = useState(false);
+  const [mounted, setMounted] = useState(false);
+
+  // Restore collapse state from localStorage
+  useEffect(() => {
+    const stored = localStorage.getItem(COLLAPSED_KEY);
+    if (stored === "1") setCollapsed(true);
+    setMounted(true);
+  }, []);
+
+  const toggle = () => {
+    setCollapsed(prev => {
+      localStorage.setItem(COLLAPSED_KEY, prev ? "0" : "1");
+      return !prev;
+    });
+  };
 
   useEffect(() => {
     fetch("/api/projects")
@@ -44,68 +62,109 @@ export function VIBNSidebar({ workspace }: VIBNSidebarProps) {
       .catch(() => {});
   }, []);
 
-  // Derive active project from URL
   const activeProjectId = pathname?.match(/\/project\/([^/]+)/)?.[1] ?? null;
-
-  // Derive active top-level section
   const isProjects = !activeProjectId && (pathname?.includes("/projects") || pathname?.includes("/project"));
   const isActivity = !activeProjectId && pathname?.includes("/activity");
   const isSettings = !activeProjectId && pathname?.includes("/settings");
 
   const topNavItems = [
-    { id: "projects",  label: "Projects",  icon: "⌗", href: `/${workspace}/projects` },
-    { id: "activity",  label: "Activity",  icon: "↗", href: `/${workspace}/activity` },
-    { id: "settings",  label: "Settings",  icon: "⚙", href: `/${workspace}/settings` },
+    { id: "projects", label: "Projects", icon: "⌗", href: `/${workspace}/projects` },
+    { id: "activity", label: "Activity", icon: "↗", href: `/${workspace}/activity` },
+    { id: "settings", label: "Settings", icon: "⚙", href: `/${workspace}/settings` },
   ];
 
   const userInitial = session?.user?.name?.[0]?.toUpperCase()
     ?? session?.user?.email?.[0]?.toUpperCase()
     ?? "?";
 
+  const w = collapsed ? COLLAPSED_W : EXPANDED_W;
+
+  // Don't animate on initial mount (avoid flash)
+  const transition = mounted ? "width 0.2s cubic-bezier(0.4,0,0.2,1)" : "none";
+
   return (
-    <nav
-      style={{
-        width: 220,
-        height: "100vh",
-        background: "#fff",
-        borderRight: "1px solid #e8e4dc",
+    <nav style={{
+      width: w,
+      height: "100vh",
+      background: "#fff",
+      borderRight: "1px solid #e8e4dc",
+      display: "flex",
+      flexDirection: "column",
+      fontFamily: "Outfit, sans-serif",
+      flexShrink: 0,
+      overflow: "hidden",
+      transition,
+      position: "relative",
+    }}>
+
+      {/* Logo row */}
+      <div style={{
+        padding: collapsed ? "20px 0" : "22px 18px 18px",
         display: "flex",
-        flexDirection: "column",
-        fontFamily: "Outfit, sans-serif",
+        alignItems: "center",
+        justifyContent: collapsed ? "center" : "space-between",
+        gap: 9,
+        transition: "padding 0.2s",
         flexShrink: 0,
-      }}
-    >
-      {/* Logo */}
-      <Link
-        href={`/${workspace}/projects`}
-        style={{
-          padding: "22px 18px 18px",
-          display: "flex",
-          alignItems: "center",
-          gap: 9,
-          textDecoration: "none",
-        }}
-      >
-        <div
-          style={{
-            width: 28, height: 28, borderRadius: 7, overflow: "hidden",
-            flexShrink: 0,
-          }}
+      }}>
+        <Link
+          href={`/${workspace}/projects`}
+          style={{ display: "flex", alignItems: "center", gap: 9, textDecoration: "none" }}
+          title="VIBN"
         >
-          <img src="/vibn-black-circle-logo.png" alt="VIBN" style={{ width: "100%", height: "100%", objectFit: "cover" }} />
-        </div>
-        <span
+          <div style={{ width: 28, height: 28, borderRadius: 7, overflow: "hidden", flexShrink: 0 }}>
+            <img src="/vibn-black-circle-logo.png" alt="VIBN" style={{ width: "100%", height: "100%", objectFit: "cover" }} />
+          </div>
+          {!collapsed && (
+            <span style={{
+              fontSize: "0.95rem", fontWeight: 600, color: "#1a1a1a",
+              letterSpacing: "-0.03em", fontFamily: "Newsreader, serif",
+              whiteSpace: "nowrap", overflow: "hidden",
+            }}>
+              vibn
+            </span>
+          )}
+        </Link>
+
+        {/* Collapse toggle — only visible in expanded mode, or as a tiny button in collapsed */}
+        {!collapsed && (
+          <button
+            onClick={toggle}
+            title="Collapse sidebar"
+            style={{
+              background: "none", border: "none", cursor: "pointer",
+              color: "#c5c0b8", padding: "4px 6px", borderRadius: 5,
+              fontSize: "0.75rem", lineHeight: 1, flexShrink: 0,
+              transition: "color 0.12s",
+            }}
+            onMouseEnter={e => (e.currentTarget.style.color = "#6b6560")}
+            onMouseLeave={e => (e.currentTarget.style.color = "#c5c0b8")}
+          >
+            ‹‹
+          </button>
+        )}
+      </div>
+
+      {/* Expand button shown in collapsed mode */}
+      {collapsed && (
+        <button
+          onClick={toggle}
+          title="Expand sidebar"
           style={{
-            fontSize: "0.95rem", fontWeight: 600, color: "#1a1a1a",
-            letterSpacing: "-0.03em", fontFamily: "Newsreader, serif",
+            background: "none", border: "none", cursor: "pointer",
+            color: "#c5c0b8", fontSize: "0.7rem", lineHeight: 1,
+            padding: "4px 0 8px", width: "100%", textAlign: "center",
+            transition: "color 0.12s", flexShrink: 0,
           }}
+          onMouseEnter={e => (e.currentTarget.style.color = "#6b6560")}
+          onMouseLeave={e => (e.currentTarget.style.color = "#c5c0b8")}
         >
-          vibn
-        </span>
-      </Link>
+          ››
+        </button>
+      )}
 
       {/* Top nav */}
-      <div style={{ padding: "4px 10px" }}>
+      <div style={{ padding: collapsed ? "4px 8px" : "4px 10px", flexShrink: 0 }}>
         {topNavItems.map((n) => {
           const isActive = n.id === "projects" ? isProjects
             : n.id === "activity" ? isActivity
@@ -115,12 +174,14 @@ export function VIBNSidebar({ workspace }: VIBNSidebarProps) {
             <Link
               key={n.id}
               href={n.href}
+              title={collapsed ? n.label : undefined}
               style={{
                 width: "100%",
                 display: "flex",
                 alignItems: "center",
+                justifyContent: collapsed ? "center" : "flex-start",
                 gap: 9,
-                padding: "8px 10px",
+                padding: collapsed ? "9px 0" : "8px 10px",
                 borderRadius: 6,
                 background: isActive ? "#f6f4f0" : "transparent",
                 color: isActive ? "#1a1a1a" : "#6b6560",
@@ -130,40 +191,48 @@ export function VIBNSidebar({ workspace }: VIBNSidebarProps) {
                 textDecoration: "none",
               }}
             >
-              <span style={{ fontSize: "0.8rem", opacity: 0.45, width: 18, textAlign: "center" }}>
+              <span style={{
+                fontSize: collapsed ? "1rem" : "0.8rem",
+                opacity: collapsed ? (isActive ? 0.9 : 0.45) : 0.45,
+                width: collapsed ? "auto" : 18,
+                textAlign: "center",
+                transition: "font-size 0.15s",
+              }}>
                 {n.icon}
               </span>
-              {n.label}
+              {!collapsed && n.label}
             </Link>
           );
         })}
       </div>
 
-      <div style={{ height: 1, background: "#eae6de", margin: "10px 18px" }} />
+      <div style={{ height: 1, background: "#eae6de", margin: "10px 18px", flexShrink: 0 }} />
 
       {/* Projects list */}
-      <div style={{ padding: "2px 10px", flex: 1, overflow: "auto" }}>
-        <div
-          style={{
+      <div style={{ padding: collapsed ? "2px 8px" : "2px 10px", flex: 1, overflow: "auto" }}>
+        {!collapsed && (
+          <div style={{
             fontSize: "0.6rem", fontWeight: 600, color: "#a09a90",
             letterSpacing: "0.1em", textTransform: "uppercase",
             padding: "6px 10px 8px",
-          }}
-        >
-          Projects
-        </div>
+          }}>
+            Projects
+          </div>
+        )}
         {projects.map((p) => {
           const isActive = activeProjectId === p.id;
           return (
             <Link
               key={p.id}
               href={`/${workspace}/project/${p.id}/overview`}
+              title={collapsed ? p.productName : undefined}
               style={{
                 width: "100%",
                 display: "flex",
                 alignItems: "center",
+                justifyContent: collapsed ? "center" : "flex-start",
                 gap: 9,
-                padding: "7px 10px",
+                padding: collapsed ? "9px 0" : "7px 10px",
                 borderRadius: 6,
                 background: isActive ? "#f6f4f0" : "transparent",
                 color: "#1a1a1a",
@@ -175,49 +244,57 @@ export function VIBNSidebar({ workspace }: VIBNSidebarProps) {
               }}
             >
               <StatusDot status={p.status} />
-              <span style={{ overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>
-                {p.productName}
-              </span>
+              {!collapsed && (
+                <span style={{ overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>
+                  {p.productName}
+                </span>
+              )}
             </Link>
           );
         })}
       </div>
 
       {/* User footer */}
-      <div
-        style={{
-          padding: "14px 18px",
-          borderTop: "1px solid #eae6de",
-          display: "flex",
-          alignItems: "center",
-          gap: 9,
-        }}
-      >
+      <div style={{
+        padding: collapsed ? "12px 0" : "14px 18px",
+        borderTop: "1px solid #eae6de",
+        display: "flex",
+        alignItems: "center",
+        justifyContent: collapsed ? "center" : "flex-start",
+        gap: 9,
+        flexShrink: 0,
+      }}>
         <div
+          title={collapsed ? (session?.user?.name ?? session?.user?.email ?? "Account") : undefined}
           style={{
             width: 28, height: 28, borderRadius: "50%",
             background: "#f0ece4", display: "flex", alignItems: "center",
             justifyContent: "center", fontSize: "0.72rem", fontWeight: 600,
-            color: "#8a8478", flexShrink: 0,
+            color: "#8a8478", flexShrink: 0, cursor: "default",
           }}
         >
           {userInitial}
         </div>
-        <div style={{ flex: 1, minWidth: 0 }}>
-          <div style={{ fontSize: "0.78rem", fontWeight: 500, color: "#1a1a1a", overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>
-            {session?.user?.name ?? session?.user?.email?.split("@")[0] ?? "Account"}
+        {!collapsed && (
+          <div style={{ flex: 1, minWidth: 0 }}>
+            <div style={{
+              fontSize: "0.78rem", fontWeight: 500, color: "#1a1a1a",
+              overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap",
+            }}>
+              {session?.user?.name ?? session?.user?.email?.split("@")[0] ?? "Account"}
+            </div>
+            <button
+              onClick={() => signOut({ callbackUrl: "/auth" })}
+              style={{
+                background: "none", border: "none", padding: 0,
+                fontSize: "0.62rem", color: "#a09a90", cursor: "pointer",
+                fontFamily: "Outfit, sans-serif",
+              }}
+            >
+              Sign out
+            </button>
           </div>
-          <button
-            onClick={() => signOut({ callbackUrl: "/auth" })}
-            style={{
-              background: "none", border: "none", padding: 0,
-              fontSize: "0.62rem", color: "#a09a90", cursor: "pointer",
-              fontFamily: "Outfit, sans-serif",
-            }}
-          >
-            Sign out
-          </button>
-        </div>
+        )}
       </div>
     </nav>
   );