feat: TTS streaming — Kokoro/PocketTTS audio starts immediately

Previously all voices waited for full TTS generation before first byte
reached the browser (POST → poll → presign flow). For long chapters this
meant 2–5 minutes of silence.

New flow for Kokoro and PocketTTS:
- tryPresign fast path unchanged (audio in MinIO → seekable presigned URL)
- On cache miss: set audioEl.src to /api/audio-stream/{slug}/{n} and mark
  status=ready immediately — audio starts playing within seconds
- Backend streams bytes to browser while concurrently uploading to MinIO;
  subsequent plays use the fast path

New SvelteKit route: GET /api/audio-stream/[slug]/[n]
- Proxies backend handleAudioStream (already implemented in Go)
- Same 3 chapters/day free paywall as POST route
- HEAD handler for paywall pre-check (no side effects, no counter increment)
  so AudioPlayer can surface upgrade CTA before pointing <audio> at URL

CF AI voices keep the old POST+poll flow (batch-only API, no real streaming
benefit, preserves the generating progress bar UX).

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

ui/src/lib/components/AudioPlayer.svelte

@@ -69,6 +69,8 @@
 		voices?: Voice[];
 		/** Called when the server returns 402 (free daily limit reached). */
 		onProRequired?: () => void;
+		/** Visual style of the player card. 'standard' = full controls; 'compact' = slim seekable player. */
+		playerStyle?: 'standard' | 'compact';
 	}
 
 	let {
@@ -80,7 +82,8 @@
 		nextChapter = null,
 		chapters = [],
 		voices = [],
-		onProRequired = undefined
+		onProRequired = undefined,
+		playerStyle = 'standard'
 	}: Props = $props();
 
 	// ── Derived: voices grouped by engine ──────────────────────────────────
@@ -564,7 +567,30 @@
 				return;
 			}
 
-			// Slow path: trigger Kokoro generation (non-blocking POST), then poll.
+			// Slow path: audio not yet in MinIO.
+			//
+			// For Kokoro / PocketTTS when presign has NOT already enqueued the runner:
+			// use the streaming endpoint — audio starts playing within seconds while
+			// generation runs and MinIO is populated concurrently.
+			// Skip when enqueued=true to avoid double-generation with the async runner.
+			if (!voice.startsWith('cfai:') && !presignResult.enqueued) {
+				const qs = new URLSearchParams({ voice, format: 'mp3' });
+				const streamUrl = `/api/audio-stream/${slug}/${chapter}?${qs}`;
+				// HEAD probe: check paywall without triggering generation.
+				const headRes = await fetch(streamUrl, { method: 'HEAD' }).catch(() => null);
+				if (headRes?.status === 402) {
+					audioStore.status = 'idle';
+					onProRequired?.();
+					return;
+				}
+				audioStore.audioUrl = streamUrl;
+				audioStore.status = 'ready';
+				maybeStartPrefetch();
+				return;
+			}
+
+			// CF AI (batch-only) or already enqueued by presign: keep the traditional
+			// POST → poll → presign flow. For enqueued, we skip the POST and poll.
 			audioStore.status = 'generating';
 			startProgress();
 
@@ -738,6 +764,24 @@
 		if (m > 0) return `${m}m`;
 		return `${s}s`;
 	}
+
+	// ── Compact player helpers ─────────────────────────────────────────────────
+	const playPct = $derived(
+		audioStore.duration > 0 ? (audioStore.currentTime / audioStore.duration) * 100 : 0
+	);
+
+	const SPEED_OPTIONS = [0.75, 1, 1.25, 1.5, 2] as const;
+	function cycleSpeed() {
+		const idx = SPEED_OPTIONS.indexOf(audioStore.speed as (typeof SPEED_OPTIONS)[number]);
+		audioStore.speed = SPEED_OPTIONS[(idx + 1) % SPEED_OPTIONS.length];
+	}
+
+	function seekFromCompactBar(e: MouseEvent) {
+		if (audioStore.duration <= 0) return;
+		const rect = (e.currentTarget as HTMLElement).getBoundingClientRect();
+		const pct = Math.max(0, Math.min(1, (e.clientX - rect.left) / rect.width));
+		audioStore.seekRequest = pct * audioStore.duration;
+	}
 </script>
 
 <svelte:window onkeydown={handleKeyDown} />
@@ -788,6 +832,121 @@
 	</div>
 {/snippet}
 
+{#if playerStyle === 'compact'}
+<!-- ── Compact player ──────────────────────────────────────────────────────── -->
+<div class="mt-4 p-3 rounded-lg bg-(--color-surface-2) border border-(--color-border)">
+	{#if audioStore.isCurrentChapter(slug, chapter)}
+		{#if audioStore.status === 'idle' || audioStore.status === 'error'}
+			{#if audioStore.status === 'error'}
+				<p class="text-(--color-danger) text-xs mb-2">{audioStore.errorMsg || 'Failed to load audio.'}</p>
+			{/if}
+			<Button variant="default" size="sm" onclick={handlePlay}>
+				<svg class="w-3.5 h-3.5" fill="currentColor" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
+				{m.reader_play_narration()}
+			</Button>
+
+		{:else if audioStore.status === 'loading'}
+			<div class="flex items-center gap-2 text-xs text-(--color-muted)">
+				<svg class="w-3.5 h-3.5 animate-spin" fill="none" viewBox="0 0 24 24">
+					<circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+					<path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z"></path>
+				</svg>
+				{m.player_loading()}
+			</div>
+
+		{:else if audioStore.status === 'generating'}
+			<div class="space-y-1.5">
+				<div class="flex items-center justify-between text-xs text-(--color-muted)">
+					<span>{m.reader_generating_narration()}</span>
+					<span class="tabular-nums">{Math.round(audioStore.progress)}%</span>
+				</div>
+				<div class="w-full h-1 bg-(--color-surface-3) rounded-full overflow-hidden">
+					<div class="h-full bg-(--color-brand) rounded-full transition-none" style="width: {audioStore.progress}%"></div>
+				</div>
+			</div>
+
+		{:else if audioStore.status === 'ready'}
+			<div class="space-y-2">
+				<!-- Seekable progress bar -->
+				<!-- svelte-ignore a11y_click_events_have_key_events a11y_no_static_element_interactions -->
+				<div
+					class="w-full h-1.5 bg-(--color-surface-3) rounded-full overflow-hidden cursor-pointer group"
+					onclick={seekFromCompactBar}
+				>
+					<div class="h-full bg-(--color-brand) rounded-full transition-none" style="width: {playPct}%"></div>
+				</div>
+				<!-- Controls row -->
+				<div class="flex items-center gap-2">
+					<!-- Skip back 15s -->
+					<button
+						type="button"
+						onclick={() => { audioStore.seekRequest = Math.max(0, audioStore.currentTime - 15); }}
+						class="text-(--color-muted) hover:text-(--color-text) transition-colors flex-shrink-0"
+						title="-15s"
+					>
+						<svg class="w-4 h-4" fill="currentColor" viewBox="0 0 24 24">
+							<path d="M11.99 5V1l-5 5 5 5V7c3.31 0 6 2.69 6 6s-2.69 6-6 6-6-2.69-6-6h-2c0 4.42 3.58 8 8 8s8-3.58 8-8-3.58-8-8-8z"/>
+						</svg>
+					</button>
+					<!-- Play/pause -->
+					<button
+						type="button"
+						onclick={() => { audioStore.toggleRequest++; }}
+						class="w-8 h-8 rounded-full bg-(--color-brand) text-(--color-surface) flex items-center justify-center hover:bg-(--color-brand-dim) transition-colors flex-shrink-0"
+					>
+						{#if audioStore.isPlaying}
+							<svg class="w-3.5 h-3.5" fill="currentColor" viewBox="0 0 24 24"><path d="M6 4h4v16H6V4zm8 0h4v16h-4V4z"/></svg>
+						{:else}
+							<svg class="w-3.5 h-3.5 ml-0.5" fill="currentColor" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
+						{/if}
+					</button>
+					<!-- Skip forward 30s -->
+					<button
+						type="button"
+						onclick={() => { audioStore.seekRequest = Math.min(audioStore.duration || 0, audioStore.currentTime + 30); }}
+						class="text-(--color-muted) hover:text-(--color-text) transition-colors flex-shrink-0"
+						title="+30s"
+					>
+						<svg class="w-4 h-4" fill="currentColor" viewBox="0 0 24 24">
+							<path d="M18 13c0 3.31-2.69 6-6 6s-6-2.69-6-6 2.69-6 6-6v4l5-5-5-5v4c-4.42 0-8 3.58-8 8s3.58 8 8 8 8-3.58 8-8h-2z"/>
+						</svg>
+					</button>
+					<!-- Time display -->
+					<span class="flex-1 text-xs text-center tabular-nums text-(--color-muted)">
+						{formatTime(audioStore.currentTime)} / {formatTime(audioStore.duration)}
+					</span>
+					<!-- Speed cycle -->
+					<button
+						type="button"
+						onclick={cycleSpeed}
+						class="text-xs font-medium text-(--color-muted) hover:text-(--color-text) flex-shrink-0 tabular-nums transition-colors"
+						title="Playback speed"
+					>
+						{audioStore.speed}×
+					</button>
+				</div>
+			</div>
+		{/if}
+
+	{:else if audioStore.active}
+		<div class="flex items-center justify-between gap-3">
+			<p class="text-xs text-(--color-muted)">
+				{m.reader_now_playing({ title: audioStore.chapterTitle || `Ch.${audioStore.chapter}` })}
+			</p>
+			<Button variant="secondary" size="sm" class="flex-shrink-0" onclick={startPlayback}>
+				{m.reader_load_this_chapter()}
+			</Button>
+		</div>
+
+	{:else}
+		<Button variant="default" size="sm" onclick={handlePlay}>
+			<svg class="w-3.5 h-3.5" fill="currentColor" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
+			{m.reader_play_narration()}
+		</Button>
+	{/if}
+</div>
+{:else}
+<!-- ── Standard player ─────────────────────────────────────────────────────── -->
 <div class="mt-6 p-4 rounded-lg bg-(--color-surface-2) border border-(--color-border)">
 	<div class="flex items-center justify-between gap-2 mb-3">
 		<div class="flex items-center gap-2">
@@ -1026,3 +1185,4 @@
 		</Button>
 	{/if}
 </div>
+{/if}

ui/src/routes/+layout.svelte

@@ -192,6 +192,50 @@
 		return () => clearTimeout(id);
 	});
 
+	// ── MediaSession action handlers ────────────────────────────────────────────
+	// Without explicit handlers, iOS Safari loses lock-screen resume ability after
+	// ~1 minute of pause because it falls back to its own default which doesn't
+	// satisfy the user-gesture requirement for <audio>.play().
+	// Handlers registered here call audioEl directly so iOS trusts the gesture.
+	$effect(() => {
+		if (typeof navigator === 'undefined' || !('mediaSession' in navigator) || !audioEl) return;
+		const el = audioEl; // capture for closure
+
+		navigator.mediaSession.setActionHandler('play', () => {
+			el.play().catch(() => {});
+		});
+		navigator.mediaSession.setActionHandler('pause', () => {
+			el.pause();
+		});
+		navigator.mediaSession.setActionHandler('seekbackward', (d) => {
+			el.currentTime = Math.max(0, el.currentTime - (d.seekOffset ?? 15));
+		});
+		navigator.mediaSession.setActionHandler('seekforward', (d) => {
+			el.currentTime = Math.min(el.duration || 0, el.currentTime + (d.seekOffset ?? 30));
+		});
+		// previoustrack / nexttrack fall back to skip ±30s if no chapter nav available
+		try {
+			navigator.mediaSession.setActionHandler('previoustrack', () => {
+				el.currentTime = Math.max(0, el.currentTime - 30);
+			});
+			navigator.mediaSession.setActionHandler('nexttrack', () => {
+				el.currentTime = Math.min(el.duration || 0, el.currentTime + 30);
+			});
+		} catch { /* some browsers don't support these */ }
+
+		return () => {
+			(['play', 'pause', 'seekbackward', 'seekforward'] as MediaSessionAction[]).forEach((a) => {
+				try { navigator.mediaSession.setActionHandler(a, null); } catch { /* ignore */ }
+			});
+		};
+	});
+
+	// Keep playbackState in sync so iOS lock screen shows the right button state
+	$effect(() => {
+		if (typeof navigator === 'undefined' || !('mediaSession' in navigator)) return;
+		navigator.mediaSession.playbackState = audioStore.isPlaying ? 'playing' : 'paused';
+	});
+
 	// ── Save audio time on pause/end (debounced 2s) ─────────────────────────
 	let audioTimeSaveTimer = 0;
 	function saveAudioTime() {

ui/src/routes/api/audio-stream/[slug]/[n]/+server.ts

@@ -0,0 +1,134 @@
+import { error } from '@sveltejs/kit';
+import type { RequestHandler } from './$types';
+import { log } from '$lib/server/logger';
+import { backendFetch } from '$lib/server/scraper';
+import * as cache from '$lib/server/cache';
+
+const FREE_DAILY_AUDIO_LIMIT = 3;
+
+function dailyAudioKey(identifier: string): string {
+	const today = new Date().toISOString().slice(0, 10);
+	return `audio:daily:${identifier}:${today}`;
+}
+
+/**
+ * Return the number of audio chapters a user/session has generated today,
+ * and increment the counter. Shared logic with POST /api/audio/[slug]/[n].
+ *
+ * Key: audio:daily:<userId|sessionId>:<YYYY-MM-DD>
+ */
+async function incrementDailyAudioCount(identifier: string): Promise<number> {
+	const key = dailyAudioKey(identifier);
+	const now = new Date();
+	const endOfDay = new Date(Date.UTC(now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate() + 1));
+	const ttl = Math.ceil((endOfDay.getTime() - now.getTime()) / 1000);
+	try {
+		const raw = await cache.get<number>(key);
+		const current = (raw ?? 0) + 1;
+		await cache.set(key, current, ttl);
+		return current;
+	} catch {
+		// On cache failure, fail open (don't block audio for cache errors)
+		return 0;
+	}
+}
+
+/**
+ * GET /api/audio-stream/[slug]/[n]?voice=...
+ *
+ * Proxies the backend's streaming TTS endpoint to the browser.
+ *
+ * Fast path: if audio already in MinIO, backend sends a 302 → fetch follows it
+ * and we stream the MinIO audio through.
+ *
+ * Slow path (Kokoro/PocketTTS): backend streams audio bytes as they are
+ * generated. The browser receives the first bytes within seconds and can start
+ * playing before generation completes. MinIO upload happens concurrently
+ * server-side so subsequent requests use the cached fast path.
+ *
+ * Slow path (CF AI): backend buffers the full response (batch API limitation)
+ * before sending — effectively the same as the old POST+poll approach but
+ * without the separate progress-bar flow. Prefer the traditional POST route
+ * for CF AI voices to preserve the generating UI.
+ */
+export const GET: RequestHandler = async ({ params, url, locals }) => {
+	const { slug, n } = params;
+	const chapter = parseInt(n, 10);
+	if (!slug || !chapter || chapter < 1) {
+		error(400, 'Invalid slug or chapter number');
+	}
+
+	const voice = url.searchParams.get('voice') ?? '';
+
+	// ── Paywall: 3 audio chapters/day for free users ─────────────────────────
+	// Only count when the audio is not already cached — same rule as POST route.
+	if (!locals.isPro) {
+		const statusRes = await backendFetch(
+			`/api/audio/status/${slug}/${chapter}${voice ? `?voice=${encodeURIComponent(voice)}` : ''}`
+		).catch(() => null);
+		const statusData = statusRes?.ok
+			? ((await statusRes.json().catch(() => ({}))) as { status?: string })
+			: {};
+
+		if (statusData.status !== 'done') {
+			const identifier = locals.user?.id ?? locals.sessionId;
+			const count = await incrementDailyAudioCount(identifier);
+			if (count > FREE_DAILY_AUDIO_LIMIT) {
+				log.info('polar', 'free audio stream limit reached', { identifier, count });
+				return new Response(
+					JSON.stringify({ error: 'pro_required', limit: FREE_DAILY_AUDIO_LIMIT }),
+					{ status: 402, headers: { 'Content-Type': 'application/json' } }
+				);
+			}
+		}
+	}
+
+	const qs = new URLSearchParams({ format: 'mp3' });
+	if (voice) qs.set('voice', voice);
+
+	// fetch() follows the backend's 302 (MinIO fast path) automatically.
+	const backendRes = await backendFetch(`/api/audio-stream/${slug}/${chapter}?${qs}`);
+
+	if (!backendRes.ok) {
+		const text = await backendRes.text().catch(() => '');
+		log.error('audio-stream', 'backend stream failed', {
+			slug,
+			chapter,
+			status: backendRes.status,
+			body: text
+		});
+		error(backendRes.status as Parameters<typeof error>[0], text || 'Audio stream failed');
+	}
+
+	// Stream the response body directly — no buffering.
+	return new Response(backendRes.body, {
+		status: 200,
+		headers: {
+			'Content-Type': backendRes.headers.get('Content-Type') ?? 'audio/mpeg',
+			'Cache-Control': 'no-store',
+			'X-Accel-Buffering': 'no'
+		}
+	});
+};
+
+/**
+ * HEAD /api/audio-stream/[slug]/[n]?voice=...
+ *
+ * Paywall pre-check without incrementing the daily counter or triggering
+ * any generation. The AudioPlayer uses this to surface the upgrade CTA
+ * before pointing the <audio> element at the streaming URL.
+ *
+ * Returns 402 if the user has already hit their daily limit, 200 otherwise.
+ */
+export const HEAD: RequestHandler = async ({ locals }) => {
+	if (locals.isPro) {
+		return new Response(null, { status: 200 });
+	}
+	const identifier = locals.user?.id ?? locals.sessionId;
+	const count = (await cache.get<number>(dailyAudioKey(identifier))) ?? 0;
+	// count >= limit means the next GET would exceed the limit after increment
+	if (count >= FREE_DAILY_AUDIO_LIMIT) {
+		return new Response(null, { status: 402 });
+	}
+	return new Response(null, { status: 200 });
+};

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

@@ -7,6 +7,7 @@
 	import CommentsSection from '$lib/components/CommentsSection.svelte';
 	import type { PageData } from './$types';
 	import * as m from '$lib/paraglide/messages.js';
+	import { audioStore } from '$lib/audio.svelte';
 
 	let { data }: { data: PageData } = $props();
 
@@ -62,6 +63,7 @@
 	type LineSpacing = 'compact' | 'normal' | 'relaxed';
 	type ReadWidth   = 'narrow' | 'normal' | 'wide';
 	type ParaStyle   = 'spaced' | 'indented';
+	type PlayerStyle = 'standard' | 'compact';
 
 	interface LayoutPrefs {
 		readMode:    ReadMode;
@@ -69,12 +71,13 @@
 		readWidth:   ReadWidth;
 		paraStyle:   ParaStyle;
 		focusMode:   boolean;
+		playerStyle: PlayerStyle;
 	}
 
 	const LAYOUT_KEY = 'reader_layout_v1';
 	const LINE_HEIGHTS: Record<LineSpacing, number> = { compact: 1.55, normal: 1.85, relaxed: 2.2 };
 	const READ_WIDTHS:  Record<ReadWidth,   string>  = { narrow: '58ch', normal: '72ch', wide: 'min(90ch, 100%)' };
-	const DEFAULT_LAYOUT: LayoutPrefs = { readMode: 'scroll', lineSpacing: 'normal', readWidth: 'normal', paraStyle: 'spaced', focusMode: false };
+	const DEFAULT_LAYOUT: LayoutPrefs = { readMode: 'scroll', lineSpacing: 'normal', readWidth: 'normal', paraStyle: 'spaced', focusMode: false, playerStyle: 'standard' };
 
 	function loadLayout(): LayoutPrefs {
 		if (!browser) return DEFAULT_LAYOUT;
@@ -92,6 +95,34 @@
 		if (browser) localStorage.setItem(LAYOUT_KEY, JSON.stringify(layout));
 	}
 
+	// ── Listening settings helpers ───────────────────────────────────────────────
+	const SETTINGS_SLEEP_OPTIONS = [15, 30, 45, 60];
+	const sleepSettingsLabel = $derived(
+		audioStore.sleepAfterChapter
+			? 'End Ch.'
+			: audioStore.sleepUntil > Date.now()
+				? `${Math.ceil((audioStore.sleepUntil - Date.now()) / 60000)}m`
+				: 'Off'
+	);
+
+	function toggleSleepFromSettings() {
+		if (!audioStore.sleepUntil && !audioStore.sleepAfterChapter) {
+			audioStore.sleepAfterChapter = true;
+		} else if (audioStore.sleepAfterChapter) {
+			audioStore.sleepAfterChapter = false;
+			audioStore.sleepUntil = Date.now() + SETTINGS_SLEEP_OPTIONS[0] * 60 * 1000;
+		} else {
+			const remaining = audioStore.sleepUntil - Date.now();
+			const currentMin = Math.round(remaining / 60000);
+			const idx = SETTINGS_SLEEP_OPTIONS.findIndex((m) => m >= currentMin);
+			if (idx === -1 || idx === SETTINGS_SLEEP_OPTIONS.length - 1) {
+				audioStore.sleepUntil = 0;
+			} else {
+				audioStore.sleepUntil = Date.now() + SETTINGS_SLEEP_OPTIONS[idx + 1] * 60 * 1000;
+			}
+		}
+	}
+
 	// Apply reading CSS vars whenever layout changes
 	$effect(() => {
 		if (!browser) return;
@@ -444,6 +475,7 @@
 	nextChapter={data.next}
 	chapters={data.chapters}
 	voices={data.voices}
+	playerStyle={layout.playerStyle}
 	onProRequired={() => { audioProRequired = true; }}
 />
 {/if}
@@ -735,6 +767,75 @@
 		<span class="opacity-60 text-xs">{layout.focusMode ? 'On — audio & nav hidden' : 'Off'}</span>
 	</button>
 
+	<!-- ── Listening section ─────────────────────────────────────────── -->
+	<div class="border-t border-(--color-border)"></div>
+	<p class="text-xs font-semibold text-(--color-muted) uppercase tracking-wider">Listening</p>
+
+	<!-- Player style -->
+	<div class="space-y-2">
+		<p class="text-xs text-(--color-muted)">Player style</p>
+		<div class="flex gap-1.5">
+			{#each ([['standard', 'Standard'], ['compact', 'Compact']] as const) as [s, label]}
+				<button
+					type="button"
+					onclick={() => setLayout('playerStyle', s)}
+					class="flex-1 py-1.5 rounded-lg border text-xs font-medium transition-colors
+						{layout.playerStyle === s
+							? 'border-(--color-brand) bg-(--color-brand)/10 text-(--color-brand)'
+							: 'border-(--color-border) bg-(--color-surface-3) text-(--color-muted) hover:border-(--color-brand)/50 hover:text-(--color-text)'}"
+					aria-pressed={layout.playerStyle === s}
+				>{label}</button>
+			{/each}
+		</div>
+	</div>
+
+	{#if page.data.user}
+	<!-- Playback speed -->
+	<div class="space-y-2">
+		<p class="text-xs text-(--color-muted)">Speed</p>
+		<div class="flex gap-1">
+			{#each [0.75, 1, 1.25, 1.5, 2] as s}
+				<button
+					type="button"
+					onclick={() => { audioStore.speed = s; }}
+					class="flex-1 py-1.5 rounded-lg border text-xs font-medium transition-colors
+						{audioStore.speed === s
+							? 'border-(--color-brand) bg-(--color-brand)/10 text-(--color-brand)'
+							: 'border-(--color-border) bg-(--color-surface-3) text-(--color-muted) hover:border-(--color-brand)/50 hover:text-(--color-text)'}"
+					aria-pressed={audioStore.speed === s}
+				>{s}×</button>
+			{/each}
+		</div>
+	</div>
+
+	<!-- Auto-next -->
+	<button
+		type="button"
+		onclick={() => { audioStore.autoNext = !audioStore.autoNext; }}
+		class="w-full flex items-center justify-between py-2 px-3 rounded-lg border text-xs font-medium transition-colors
+			{audioStore.autoNext
+				? 'border-(--color-brand) bg-(--color-brand)/10 text-(--color-brand)'
+				: 'border-(--color-border) bg-(--color-surface-3) text-(--color-muted) hover:border-(--color-brand)/50 hover:text-(--color-text)'}"
+		aria-pressed={audioStore.autoNext}
+	>
+		<span>Auto-next chapter</span>
+		<span class="opacity-60">{audioStore.autoNext ? 'On' : 'Off'}</span>
+	</button>
+
+	<!-- Sleep timer -->
+	<button
+		type="button"
+		onclick={toggleSleepFromSettings}
+		class="w-full flex items-center justify-between py-2 px-3 rounded-lg border text-xs font-medium transition-colors
+			{audioStore.sleepUntil || audioStore.sleepAfterChapter
+				? 'border-(--color-brand) bg-(--color-brand)/10 text-(--color-brand)'
+				: 'border-(--color-border) bg-(--color-surface-3) text-(--color-muted) hover:border-(--color-brand)/50 hover:text-(--color-text)'}"
+	>
+		<span>Sleep timer</span>
+		<span class="opacity-60">{sleepSettingsLabel}</span>
+	</button>
+	{/if}
+
 	<p class="text-xs text-(--color-muted)/60 text-center">Changes save automatically</p>
 </div>
 {/if}