feat: premium toolbar with glassmorphism, auto-hide, edge snap, and smooth snap animation

src/app/client/client-view.tsx

@@ -121,8 +121,43 @@ export function ClientView({
 
 	useEffect(() => { if (pos) posRef.current = pos; }, [pos]);
 
+	const [hidden, setHidden] = useState(false);
+	const [snapTween, setSnapTween] = useState(false);
+	const SNAP = 40;
+
+	/* auto-hide: show on mouse activity, fade after 2s idle */
+	useEffect(() => {
+		let t: ReturnType<typeof setTimeout>;
+		function poke() {
+			setHidden(false);
+			clearTimeout(t);
+			if (!dragging) t = setTimeout(() => setHidden(true), 2000);
+		}
+		window.addEventListener("mousemove", poke);
+		window.addEventListener("touchstart", poke);
+		poke();
+		return () => {
+			window.removeEventListener("mousemove", poke);
+			window.removeEventListener("touchstart", poke);
+			clearTimeout(t);
+		};
+	}, [dragging]);
+
+	function snapPos(top: number, left: number) {
+		const el = toolbarRef.current;
+		if (!el) return { top, left };
+		const w = el.offsetWidth, h = el.offsetHeight;
+		const vw = window.innerWidth, vh = window.innerHeight;
+		if (top < SNAP) top = 0;
+		else if (top + h > vh - SNAP) top = vh - h;
+		if (left < SNAP) left = 0;
+		else if (left + w > vw - SNAP) left = vw - w;
+		return { top, left };
+	}
+
 	const startDrag = useCallback((clientX: number, clientY: number) => {
 		if (!pos) return;
+		setSnapTween(false);
 		dragRef.current = {
 			startX: clientX,
 			startY: clientY,
@@ -165,10 +200,13 @@ export function ClientView({
 		}
 		function onEnd() {
 			setDragging(false);
-			setPos(p => p);
+			const snapped = snapPos(posRef.current.top, posRef.current.left);
+			setPos(snapped);
+			setSnapTween(true);
+			setTimeout(() => setSnapTween(false), 180);
 			try {
-				localStorage.setItem("client_toolbar_x", String(posRef.current.left));
-				localStorage.setItem("client_toolbar_y", String(posRef.current.top));
+				localStorage.setItem("client_toolbar_x", String(snapped.left));
+				localStorage.setItem("client_toolbar_y", String(snapped.top));
 			} catch {}
 		}
 		window.addEventListener("mousemove", onMove);
@@ -188,11 +226,19 @@ export function ClientView({
 			{pos ? (
 				<div
 					ref={toolbarRef}
-					className={`fixed z-[9999] flex items-center gap-1 sm:gap-2 select-none ${dragging ? "cursor-grabbing" : "cursor-grab"}`}
-					style={{ top: pos.top, left: pos.left }}
+					onMouseEnter={() => setHidden(false)}
+					className={`fixed z-[9999] backdrop-blur-xl bg-black/30 rounded-xl border border-white/10 shadow-2xl px-1.5 py-1 select-none ${dragging ? "cursor-grabbing" : "cursor-grab"} ${hidden && !dragging ? "opacity-0 pointer-events-none" : "opacity-100"}`}
+					style={{
+						top: pos.top,
+						left: pos.left,
+						transitionProperty: snapTween ? "top, left, opacity" : "opacity",
+						transitionDuration: snapTween ? "0.18s, 0.18s, 0.3s" : "0.3s",
+						transitionTimingFunction: snapTween ? "ease-out, ease-out, ease" : "ease",
+					}}
 					onMouseDown={handleMouseDown}
 					onTouchStart={handleTouchStart}
 				>
+				<div className="flex items-center gap-1 sm:gap-2">
 				<ToolbarBtn href="/" title="Home">
 					<svg
 						width="14"
@@ -313,6 +359,7 @@ export function ClientView({
 				>
 					<LogOut size={14} />
 				</ToolbarBtn>
+				</div>
 			</div>
 			) : null}