feat: add backdrop blur overlay when mobile hamburger menu is open

ui/src/lib/audio.svelte.ts

@@ -170,6 +170,21 @@ class AudioStore {
 		return this.status === 'ready' || this.status === 'generating' || this.status === 'loading';
 	}
 
+	/**
+	 * When true the persistent mini-bar in +layout.svelte is hidden.
+	 * Set by the chapter reader page when playerStyle is 'float' or 'minimal'
+	 * so the in-page player is the sole control surface.
+	 * Cleared when leaving the chapter page (page destroy / onDestroy effect).
+	 */
+	suppressMiniBar = $state(false);
+
+	/**
+	 * Position of the draggable float overlay (bottom-right anchor offsets).
+	 * Stored here (module singleton) so the position survives chapter navigation.
+	 * x > 0 = moved left; y > 0 = moved up.
+	 */
+	floatPos = $state({ x: 0, y: 0 });
+
 	/** True when the currently loaded track matches slug+chapter */
 	isCurrentChapter(slug: string, chapter: number): boolean {
 		return this.slug === slug && this.chapter === chapter;

ui/src/lib/components/AudioPlayer.svelte

@@ -945,19 +945,18 @@
 	}
 
 	// ── Float player drag state ──────────────────────────────────────────────
-	/** Position of the floating overlay (bottom-right anchor by default). */
-	let floatPos = $state({ x: 0, y: 0 });
+	// floatPos lives on audioStore (singleton) so position survives chapter navigation.
 	let floatDragging = $state(false);
 	let floatDragStart = $state({ mx: 0, my: 0, ox: 0, oy: 0 });
 
 	function onFloatPointerDown(e: PointerEvent) {
 		floatDragging = true;
-		floatDragStart = { mx: e.clientX, my: e.clientY, ox: floatPos.x, oy: floatPos.y };
+		floatDragStart = { mx: e.clientX, my: e.clientY, ox: audioStore.floatPos.x, oy: audioStore.floatPos.y };
 		(e.currentTarget as HTMLElement).setPointerCapture(e.pointerId);
 	}
 	function onFloatPointerMove(e: PointerEvent) {
 		if (!floatDragging) return;
-		floatPos = {
+		audioStore.floatPos = {
 			x: floatDragStart.ox + (e.clientX - floatDragStart.mx),
 			y: floatDragStart.oy + (e.clientY - floatDragStart.my)
 		};
@@ -1459,8 +1458,8 @@
 	<div
 		class="fixed z-[55] select-none"
 		style="
-			bottom: calc(4.5rem + {-floatPos.y}px);
-			right: calc(1rem + {-floatPos.x}px);
+			bottom: calc(1rem + {-audioStore.floatPos.y}px);
+			right: calc(1rem + {-audioStore.floatPos.x}px);
 			touch-action: none;
 		"
 	>

ui/src/routes/+layout.svelte

@@ -512,7 +512,7 @@
 	style="display:none"
 ></audio>
 
-<div class="min-h-screen flex flex-col" class:pb-24={audioStore.active}>
+<div class="min-h-screen flex flex-col" class:pb-24={audioStore.active && !audioStore.suppressMiniBar}>
 	<!-- Navigation progress bar — shown while SSR is running for any page transition -->
 	{#if navigating}
 		<div class="fixed top-0 left-0 right-0 z-[100] h-1 bg-(--color-surface-2)">
@@ -745,14 +745,24 @@
 					</Button>
 				</div>
 
-				<!-- Click-outside overlay for dropdowns -->
-				{#if langMenuOpen || userMenuOpen}
-					<div
-						class="fixed inset-0 z-40"
-						onpointerdown={() => { langMenuOpen = false; userMenuOpen = false; }}
-						aria-hidden="true"
-					></div>
-				{/if}
+		<!-- Click-outside overlay for dropdowns -->
+			{#if langMenuOpen || userMenuOpen}
+				<div
+					class="fixed inset-0 z-40"
+					onpointerdown={() => { langMenuOpen = false; userMenuOpen = false; }}
+					aria-hidden="true"
+				></div>
+			{/if}
+
+			<!-- Backdrop for mobile hamburger menu -->
+			{#if menuOpen}
+				<div
+					class="fixed inset-0 z-40 sm:hidden"
+					style="background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);"
+					onpointerdown={() => { menuOpen = false; }}
+					aria-hidden="true"
+				></div>
+			{/if}
 			{:else}
 				<div class="ml-auto">
 					<a
@@ -959,7 +969,7 @@
 </div>
 
 <!-- ── Persistent mini-player bar ─────────────────────────────────────────── -->
-{#if audioStore.active}
+{#if audioStore.active && !audioStore.suppressMiniBar}
 	<div class="fixed bottom-0 left-0 right-0 z-50 bg-(--color-surface) border-t border-(--color-border) shadow-2xl">
 
 		<!-- Generation progress bar (sits at very top of the bar) -->

ui/src/routes/books/[slug]/chapters/[n]/+page.svelte

@@ -100,6 +100,33 @@
 		document.documentElement.style.setProperty('--reading-max-width', READ_WIDTHS[layout.readWidth]);
 	});
 
+	// ── Suppress mini-bar for float / minimal player styles ──────────────────────
+	// The in-page player is the sole control surface for these styles; the layout
+	// mini-bar would be a duplicate. Clear on page destroy so the mini-bar returns
+	// on other pages (library, catalogue, etc.) where audio may still be playing.
+	$effect(() => {
+		audioStore.suppressMiniBar = layout.playerStyle === 'float' || layout.playerStyle === 'minimal';
+		return () => { audioStore.suppressMiniBar = false; };
+	});
+
+	// ── Persist float overlay position across reloads ─────────────────────────────
+	const FLOAT_POS_KEY = 'reader_float_pos_v1';
+	if (browser) {
+		try {
+			const saved = localStorage.getItem(FLOAT_POS_KEY);
+			if (saved) {
+				const p = JSON.parse(saved) as { x: number; y: number };
+				if (typeof p.x === 'number' && typeof p.y === 'number') audioStore.floatPos = p;
+			}
+		} catch { /* ignore */ }
+	}
+	$effect(() => {
+		const pos = audioStore.floatPos;
+		if (browser && (pos.x !== 0 || pos.y !== 0)) {
+			try { localStorage.setItem(FLOAT_POS_KEY, JSON.stringify(pos)); } catch { /* ignore */ }
+		}
+	});
+
 	// ── Scroll progress bar ──────────────────────────────────────────────────────
 	let scrollProgress = $state(0);
 
@@ -797,7 +824,7 @@
 {#if layout.readMode === 'scroll' && !layout.focusMode}
 {@const atTop = scrollProgress <= 0.01}
 {@const atBottom = scrollProgress >= 0.99}
-<div class="fixed right-4 {audioStore.active ? 'bottom-[5.5rem]' : 'bottom-8'} z-40 flex flex-col gap-2 transition-all">
+<div class="fixed right-4 {audioStore.active && !audioStore.suppressMiniBar ? 'bottom-[5.5rem]' : 'bottom-8'} z-40 flex flex-col gap-2 transition-all">
 	<!-- Up button / Prev chapter -->
 	{#if atTop && data.prev}
 		<a
@@ -856,7 +883,7 @@
 
 <!-- ── Focus mode floating nav ───────────────────────────────────────────── -->
 {#if layout.focusMode}
-<div class="fixed {audioStore.active ? 'bottom-[4.5rem]' : 'bottom-6'} left-1/2 -translate-x-1/2 z-50 max-w-[calc(100vw-2rem)]">
+<div class="fixed {audioStore.active && !audioStore.suppressMiniBar ? 'bottom-[4.5rem]' : 'bottom-6'} left-1/2 -translate-x-1/2 z-50 max-w-[calc(100vw-2rem)]">
 	<div class="flex items-center divide-x divide-(--color-border) rounded-full bg-(--color-surface-2)/95 backdrop-blur border border-(--color-border) shadow-lg text-xs text-(--color-muted) overflow-hidden">
 		<!-- Prev chapter -->
 		{#if data.prev}