feat(web): hold a Screen Wake Lock while reading or listening

New wake-lock.ts engine (sanctioned island, dependency-injected for
tests): feature-detected navigator.wakeLock, silent no-op when
unsupported or denied, and the spec-mandated force-release-on-hide →
re-acquire-on-visible loop handled via the sentinel release event.
The player acquires on play and releases on pause (sleep-timer fades
ride the same path); the reader holds the lock for the session. Both
gate on the keep_screen_awake preference — data-keep-awake on the
player root, keepScreenAwake in readerInitExpr.

Hidden-tab playback intentionally does not keep the screen awake:
the spec forbids screen wake locks for hidden documents.

cmd/server/tests/user_test.go

@@ -667,3 +667,92 @@ func TestUpdatePasswordSelfChange(t *testing.T) {
 		assert.Contains(t, rec.Body.String(), "current password required")
 	})
 }
+
+// TestProfileKeepScreenAwake pins the keep_screen_awake user preference
+// end to end: schema default, the "true"/"false" form dropdown contract,
+// JSON-client omission semantics ("" = untouched), and rejection of
+// anything else. Uses a dedicated user — never the shared admin.
+func TestProfileKeepScreenAwake(t *testing.T) {
+	// getProfile fetches the JSON profile and returns keep_screen_awake.
+	getProfile := func(t *testing.T, setup *TestServerSetup, token string) bool {
+		req := httptest.NewRequest("GET", "/api/auth/profile", nil)
+		req.Header.Set("Authorization", "Bearer "+token)
+		rec := httptest.NewRecorder()
+		setup.Server.Config.Handler.ServeHTTP(rec, req)
+		require.Equal(t, http.StatusOK, rec.Code)
+		var body struct {
+			KeepScreenAwake bool `json:"keep_screen_awake"`
+		}
+		require.NoError(t, json.Unmarshal(rec.Body.Bytes(), &body))
+		return body.KeepScreenAwake
+	}
+	putProfile := func(t *testing.T, setup *TestServerSetup, token string, fields map[string]interface{}) *httptest.ResponseRecorder {
+		jsonData, _ := json.Marshal(fields)
+		req := httptest.NewRequest("PUT", "/api/auth/profile", bytes.NewBuffer(jsonData))
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Authorization", "Bearer "+token)
+		rec := httptest.NewRecorder()
+		setup.Server.Config.Handler.ServeHTTP(rec, req)
+		return rec
+	}
+
+	t.Run("fresh user defaults to true", func(t *testing.T) {
+		setup := setupTestServer(t)
+		selfUser := createRegularUserOnce(t, setup.DB)
+		token := loginUserWithCredentials(t, setup.Server, selfUser.Email, selfUser.Password)
+
+		row, err := setup.DB.GetUser(context.Background(), pgtype.UUID{Bytes: selfUser.ID, Valid: true})
+		require.NoError(t, err)
+		assert.True(t, row.KeepScreenAwake, "schema default must keep the column TRUE")
+		assert.True(t, getProfile(t, setup, token), "profile API must report the default")
+	})
+
+	t.Run("false persists and reads back", func(t *testing.T) {
+		setup := setupTestServer(t)
+		selfUser := createRegularUserOnce(t, setup.DB)
+		token := loginUserWithCredentials(t, setup.Server, selfUser.Email, selfUser.Password)
+
+		rec := putProfile(t, setup, token, map[string]interface{}{"keep_screen_awake": "false"})
+		require.Equal(t, http.StatusOK, rec.Code)
+		assert.False(t, getProfile(t, setup, token))
+
+		row, err := setup.DB.GetUser(context.Background(), pgtype.UUID{Bytes: selfUser.ID, Valid: true})
+		require.NoError(t, err)
+		assert.False(t, row.KeepScreenAwake)
+	})
+
+	t.Run("flipping back to true persists", func(t *testing.T) {
+		setup := setupTestServer(t)
+		selfUser := createRegularUserOnce(t, setup.DB)
+		token := loginUserWithCredentials(t, setup.Server, selfUser.Email, selfUser.Password)
+
+		require.Equal(t, http.StatusOK, putProfile(t, setup, token,
+			map[string]interface{}{"keep_screen_awake": "false"}).Code)
+		require.Equal(t, http.StatusOK, putProfile(t, setup, token,
+			map[string]interface{}{"keep_screen_awake": "true"}).Code)
+		assert.True(t, getProfile(t, setup, token))
+	})
+
+	t.Run("request omitting the field leaves it untouched", func(t *testing.T) {
+		setup := setupTestServer(t)
+		selfUser := createRegularUserOnce(t, setup.DB)
+		token := loginUserWithCredentials(t, setup.Server, selfUser.Email, selfUser.Password)
+
+		// JSON clients (the Android app) sync other profile fields
+		// without knowing this one — the default-on preference must
+		// survive such a save.
+		rec := putProfile(t, setup, token, map[string]interface{}{"theme": "nord"})
+		require.Equal(t, http.StatusOK, rec.Code)
+		assert.True(t, getProfile(t, setup, token))
+	})
+
+	t.Run("invalid value is rejected", func(t *testing.T) {
+		setup := setupTestServer(t)
+		selfUser := createRegularUserOnce(t, setup.DB)
+		token := loginUserWithCredentials(t, setup.Server, selfUser.Email, selfUser.Password)
+
+		rec := putProfile(t, setup, token, map[string]interface{}{"keep_screen_awake": "maybe"})
+		assert.Equal(t, http.StatusBadRequest, rec.Code)
+		assert.True(t, getProfile(t, setup, token), "rejected save must not change the preference")
+	})
+}

database/schema/schema.sql

@@ -42,6 +42,11 @@ CREATE TABLE IF NOT EXISTS users (
 -- mirrors the per-book table's column.
 ALTER TABLE users ADD COLUMN IF NOT EXISTS default_audio_speed REAL NOT NULL DEFAULT 1.0;
 
+-- Keep-screen-awake preference: when true, the web reader and audiobook
+-- player request a Screen Wake Lock so the display doesn't blank/lock
+-- mid-session. On by default; the profile page's On/Off dropdown owns it.
+ALTER TABLE users ADD COLUMN IF NOT EXISTS keep_screen_awake BOOLEAN NOT NULL DEFAULT TRUE;
+
 -- Create system_settings table
 CREATE TABLE IF NOT EXISTS system_settings (
     id UUID PRIMARY KEY DEFAULT gen_random_uuid(),

internal/database/models.go

@@ -597,4 +597,5 @@ type Users struct {
 	Timezone          pgtype.Text        `db:"timezone" json:"timezone"`
 	UpdatedAt         pgtype.Timestamptz `db:"updated_at" json:"updated_at"`
 	DefaultAudioSpeed float32            `db:"default_audio_speed" json:"default_audio_speed"`
+	KeepScreenAwake   bool               `db:"keep_screen_awake" json:"keep_screen_awake"`
 }

internal/database/querier.go

@@ -699,6 +699,7 @@ type Querier interface {
 	// Update universal progress
 	UpdateUniversalProgress(ctx context.Context, arg UpdateUniversalProgressParams) (ReadingProgress, error)
 	UpdateUserDefaultAudioSpeed(ctx context.Context, arg UpdateUserDefaultAudioSpeedParams) error
+	UpdateUserKeepScreenAwake(ctx context.Context, arg UpdateUserKeepScreenAwakeParams) error
 	UpdateUserMaxDevices(ctx context.Context, arg UpdateUserMaxDevicesParams) (Users, error)
 	UpdateUserProfile(ctx context.Context, arg UpdateUserProfileParams) error
 	UpdateUserRole(ctx context.Context, arg UpdateUserRoleParams) (UpdateUserRoleRow, error)

internal/database/queries.sql.go

@@ -9942,6 +9942,7 @@ SELECT
     u.updated_at,
     u.timezone,
     u.default_audio_speed,
+    u.keep_screen_awake,
     (SELECT COUNT(*) FROM devices WHERE user_id = u.id) as device_count
 FROM users u
 WHERE u.id = $1
@@ -9960,6 +9961,7 @@ type GetUserRow struct {
 	UpdatedAt         pgtype.Timestamptz `db:"updated_at" json:"updated_at"`
 	Timezone          pgtype.Text        `db:"timezone" json:"timezone"`
 	DefaultAudioSpeed float32            `db:"default_audio_speed" json:"default_audio_speed"`
+	KeepScreenAwake   bool               `db:"keep_screen_awake" json:"keep_screen_awake"`
 	DeviceCount       int64              `db:"device_count" json:"device_count"`
 }
 
@@ -9979,6 +9981,7 @@ func (q *Queries) GetUser(ctx context.Context, id pgtype.UUID) (GetUserRow, erro
 		&i.UpdatedAt,
 		&i.Timezone,
 		&i.DefaultAudioSpeed,
+		&i.KeepScreenAwake,
 		&i.DeviceCount,
 	)
 	return i, err
@@ -17236,9 +17239,23 @@ func (q *Queries) UpdateUserDefaultAudioSpeed(ctx context.Context, arg UpdateUse
 	return err
 }
 
+const UpdateUserKeepScreenAwake = `-- name: UpdateUserKeepScreenAwake :exec
+UPDATE users SET keep_screen_awake = $2, updated_at = NOW() WHERE id = $1
+`
+
+type UpdateUserKeepScreenAwakeParams struct {
+	ID              pgtype.UUID `db:"id" json:"id"`
+	KeepScreenAwake bool        `db:"keep_screen_awake" json:"keep_screen_awake"`
+}
+
+func (q *Queries) UpdateUserKeepScreenAwake(ctx context.Context, arg UpdateUserKeepScreenAwakeParams) error {
+	_, err := q.db.Exec(ctx, UpdateUserKeepScreenAwake, arg.ID, arg.KeepScreenAwake)
+	return err
+}
+
 const UpdateUserMaxDevices = `-- name: UpdateUserMaxDevices :one
 UPDATE users SET max_devices = $2, updated_at = NOW() WHERE id = $1
-RETURNING id, email, username, password_hash, first_name, last_name, role, theme, max_devices, created_at, timezone, updated_at, default_audio_speed
+RETURNING id, email, username, password_hash, first_name, last_name, role, theme, max_devices, created_at, timezone, updated_at, default_audio_speed, keep_screen_awake
 `
 
 type UpdateUserMaxDevicesParams struct {
@@ -17263,6 +17280,7 @@ func (q *Queries) UpdateUserMaxDevices(ctx context.Context, arg UpdateUserMaxDev
 		&i.Timezone,
 		&i.UpdatedAt,
 		&i.DefaultAudioSpeed,
+		&i.KeepScreenAwake,
 	)
 	return i, err
 }

internal/database/queries/queries.sql

@@ -29,6 +29,7 @@ SELECT
     u.updated_at,
     u.timezone,
     u.default_audio_speed,
+    u.keep_screen_awake,
     (SELECT COUNT(*) FROM devices WHERE user_id = u.id) as device_count
 FROM users u
 WHERE u.id = $1;
@@ -515,6 +516,9 @@ UPDATE users SET timezone = $2, updated_at = NOW() WHERE id = $1;
 -- name: UpdateUserDefaultAudioSpeed :exec
 UPDATE users SET default_audio_speed = $2, updated_at = NOW() WHERE id = $1;
 
+-- name: UpdateUserKeepScreenAwake :exec
+UPDATE users SET keep_screen_awake = $2, updated_at = NOW() WHERE id = $1;
+
 -- Per-book playback speed preference (player plan §8).
 
 -- name: GetAudioPlaybackSpeed :one

internal/docs/schema.go

@@ -705,7 +705,7 @@ var Schemas = map[string]Schema{
 	},
 	"PUT /api/auth/profile": {
 		// Shared with admin variant (PUT /auth/profile/:id).
-		Request:  handlers.AdminUpdateUserRequest{},
+		Request:  handlers.ProfileUpdateRequest{},
 		Response: json.RawMessage(`{"message": ""}`),
 	},
 	"DELETE /api/auth/profile": {

internal/handlers/auth.go

@@ -122,21 +122,11 @@ type UserProfile struct {
 	Theme     string `json:"theme,omitempty"`
 	// User-level default audiobook playback speed (plan §8); 0 omits.
 	DefaultAudioSpeed float64 `json:"default_audio_speed,omitempty"`
+	// Whether the web reader/player should hold a Screen Wake Lock.
+	KeepScreenAwake bool `json:"keep_screen_awake"`
 }
 
-type UpdateProfileRequest struct {
+type ProfileUpdateRequest struct {
-	Username  string `json:"username,omitempty" form:"username" validate:"omitempty,min=3,max=50"`
-	Email     string `json:"email,omitempty" form:"email" validate:"omitempty,email"`
-	FirstName string `json:"first_name,omitempty" form:"first_name" validate:"omitempty,max=100"`
-	LastName  string `json:"last_name,omitempty" form:"last_name" validate:"omitempty,max=100"`
-	Theme     string `json:"theme,omitempty" form:"theme" validate:"omitempty"`
-	Timezone  string `json:"timezone,omitempty" form:"timezone" validate:"omitempty"`
-	// Per the SPEEDS list bounds; the profile select always sends it,
-	// JSON clients omit it (0 = untouched).
-	DefaultAudioSpeed float64 `json:"default_audio_speed,omitempty" form:"default_audio_speed" validate:"omitempty,min=0.25,max=4"`
-}
-
-type AdminUpdateUserRequest struct {
 	Username  string `json:"username,omitempty" form:"username" validate:"omitempty,min=3,max=50"`
 	Email     string `json:"email,omitempty" form:"email" validate:"omitempty,email"`
 	FirstName string `json:"first_name,omitempty" form:"first_name" validate:"omitempty,max=100"`
@@ -144,7 +134,11 @@ type AdminUpdateUserRequest struct {
 	Theme     string `json:"theme,omitempty" form:"theme" validate:"omitempty"`
 	Timezone  string `json:"timezone,omitempty" form:"timezone" validate:"omitempty"`
 	Role      string `json:"role,omitempty" form:"role" validate:"omitempty,oneof=user admin"`
-	// Same semantics as UpdateProfileRequest.DefaultAudioSpeed.
+	// "true"/"false" — the profile dropdown always sends it; JSON clients
+	// that omit it decode as "" and leave the column untouched.
+	KeepScreenAwake string `json:"keep_screen_awake,omitempty" form:"keep_screen_awake" validate:"omitempty,oneof=true false"`
+	// Per the SPEEDS list bounds; the profile select always sends it,
+	// JSON clients omit it (0 = untouched).
 	DefaultAudioSpeed float64 `json:"default_audio_speed,omitempty" form:"default_audio_speed" validate:"omitempty,min=0.25,max=4"`
 }
 
@@ -553,6 +547,7 @@ func (h *AuthHandler) GetProfile(c *echo.Context) error {
 		Role:              user.Role,
 		Theme:             user.Theme.String,
 		DefaultAudioSpeed: float64(user.DefaultAudioSpeed),
+		KeepScreenAwake:   user.KeepScreenAwake,
 	})
 }
 
@@ -581,7 +576,7 @@ func (h *AuthHandler) UpdateProfile(c *echo.Context) error {
 		targetUserUUID = currentUser.ID
 	}
 
-	var req AdminUpdateUserRequest
+	var req ProfileUpdateRequest
 	if err := c.Bind(&req); err != nil {
 		return c.JSON(http.StatusBadRequest, map[string]string{"error": "invalid request"})
 	}
@@ -717,6 +712,22 @@ func (h *AuthHandler) UpdateProfile(c *echo.Context) error {
 		}
 	}
 
+	// Keep-screen-awake preference. The form dropdown always sends it
+	// ("true"/"false"); JSON clients that omit it decode as "" and leave
+	// the column untouched.
+	if req.KeepScreenAwake != "" {
+		if req.KeepScreenAwake != "true" && req.KeepScreenAwake != "false" {
+			return c.JSON(http.StatusBadRequest, map[string]string{"error": "keep_screen_awake must be 'true' or 'false'"})
+		}
+		err := h.db.UpdateUserKeepScreenAwake(c.Request().Context(), database.UpdateUserKeepScreenAwakeParams{
+			ID:              targetUserUUID,
+			KeepScreenAwake: req.KeepScreenAwake == "true",
+		})
+		if err != nil {
+			return c.JSON(http.StatusInternalServerError, map[string]string{"error": err.Error()})
+		}
+	}
+
 	// Browser path (htmx modal + profile page): refresh so every rendered
 	// value (timezone select, table rows, header) reflects the save and the
 	// modal closes. A bare JSON body swapped into #profile-result read as

internal/router/helpers.go

@@ -67,6 +67,7 @@ func getTemplateUserWithTheme(c *echo.Context, cfg *Config) (templates.User, err
 		LastName:          utils.PgTextString(userDB.LastName),
 		CreatedAt:         userDB.CreatedAt.Time,
 		DefaultAudioSpeed: float64(userDB.DefaultAudioSpeed),
+		KeepScreenAwake:   userDB.KeepScreenAwake,
 	}, nil
 }
 

internal/router/reader.go

@@ -100,6 +100,7 @@ func registerReaderRoutes(cfg *Config) {
 			TotalCharacters:  mediaItem.TotalCharacters.Int64,
 			EstimatedPages:   sync.EstimatedPages(mediaItem.TotalCharacters.Int64),
 			TreatAsComic:     handlers.ShouldTreatAsComic(libraryWithType.TypeName, mediaItem.FormatGroup),
+			KeepScreenAwake:  user.KeepScreenAwake,
 		}
 		// Render template
 		var buf bytes.Buffer

templates/audio_reader.templ

@@ -40,6 +40,7 @@ templ AudioReader(user User, metadata ReaderMetadata) {
 			data-title={ metadata.Title }
 			data-cover={ metadata.CoverImagePath }
 			data-file-url={ metadata.FileURL }
+			data-keep-awake={ metadata.KeepScreenAwake }
 			data-json={ fmt.Sprintf(`{"chapterEndpoint":"%s","progressEndpoint":"%s"}`,
 				"/api/media-items/"+metadata.MediaItemID+"/chapters",
 				"/api/media-items/"+metadata.MediaItemID+"/progress") }

templates/audio_reader_templ.go

@@ -125,125 +125,138 @@ func AudioReader(user User, metadata ReaderMetadata) templ.Component {
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 8, "\" data-json=\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 8, "\" data-keep-awake=\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var9 string
-		templ_7745c5c3_Var9, templ_7745c5c3_Err = templ.ResolveAttributeValue(fmt.Sprintf(`{"chapterEndpoint":"%s","progressEndpoint":"%s"}`,
+		templ_7745c5c3_Var9, templ_7745c5c3_Err = templ.ResolveAttributeValue(metadata.KeepScreenAwake)
-			"/api/media-items/"+metadata.MediaItemID+"/chapters",
-			"/api/media-items/"+metadata.MediaItemID+"/progress"))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 45, Col: 57}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 43, Col: 45}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var9)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 9, "\"><!-- §17 wind-down dim: the sleep ticker eases this toward 35%\n\t\t\t     black across a countdown's final 30s; pointer-events-none\n\t\t\t     keeps the page usable, stop/finish resets it. --><div class=\"fixed inset-0 pointer-events-none z-40\" :style=\"'opacity:' + sleepDim + '; background: #000; transition: opacity 1s linear;'\"></div><div class=\"h-full flex flex-col items-center justify-center px-4 gap-6 select-none\"><!-- Header: back to the detail page (reader-style exit) and the\n\t\t\t     chapter launcher. Floating drawer, never in-flow (A2b). --><div class=\"absolute top-0 inset-x-0 z-30 flex items-center justify-between px-4 py-3\"><button type=\"button\" @click=\"backToDetail()\" class=\"rounded-full p-2 hover:bg-surface-hover transition-colors\" style=\"color: var(--text-primary);\" aria-label=\"Back to book details\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M19 12H5\"></path> <path d=\"m12 19-7-7 7-7\"></path></svg></button> <span class=\"inline-flex items-center gap-2\"><button type=\"button\" @click=\"bookmarksOpen = !bookmarksOpen\" class=\"rounded-full p-2 hover:bg-surface-hover transition-colors\" style=\"color: var(--text-primary); border: 1px solid var(--border); background-color: color-mix(in srgb, var(--bg-secondary) 80%, transparent);\" :aria-label=\"'Open bookmarks (' + bookmarks.length + ')'\" title=\"Bookmarks\"><svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"m19 21-7-4-7 4V5a2 2 0 0 1 2-2h10a2 2 0 0 1 2 2z\"></path></svg></button> <button type=\"button\" @click=\"chaptersOpen = !chaptersOpen\" class=\"text-sm font-semibold px-4 py-2 rounded-full hover:bg-surface-hover transition-colors inline-flex items-center gap-1.5\" style=\"color: var(--text-primary); border: 1px solid var(--border); background-color: color-mix(in srgb, var(--bg-secondary) 80%, transparent);\" :aria-label=\"'Open chapter list (currently chapter ' + (currentChapterIdx + 1) + ' of ' + (chapters.length || 1) + ')'\" title=\"Chapters\"><span>Chapter</span> <span class=\"tabular-nums\" x-text=\"(currentChapterIdx + 1) + '/' + (chapters.length || 1)\">1/1</span> <svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"m6 9 6 6 6-6\"></path></svg></button> <button type=\"button\" @click=\"helpOpen = !helpOpen\" class=\"rounded-full p-2 hover:bg-surface-hover transition-colors\" style=\"color: var(--text-primary); border: 1px solid var(--border); background-color: color-mix(in srgb, var(--bg-secondary) 80%, transparent);\" aria-label=\"Shortcuts &amp; interactions\" title=\"Shortcuts &amp; interactions (?)\"><svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"2\" y=\"4\" width=\"20\" height=\"16\" rx=\"2\"></rect> <path d=\"M6 8h.01M10 8h.01M14 8h.01M18 8h.01M6 12h.01M10 12h.01M14 12h.01M18 12h.01M8 16h8\"></path></svg></button><div class=\"relative\" @click.outside=\"settingsOpen = false\"><button type=\"button\" @click=\"settingsOpen = !settingsOpen\" class=\"rounded-full p-2 hover:bg-surface-hover transition-colors\" :class=\"settingsOpen ? 'opacity-100' : 'opacity-90'\" style=\"color: var(--text-primary); border: 1px solid var(--border); background-color: color-mix(in srgb, var(--bg-secondary) 80%, transparent);\" aria-label=\"Player settings\" title=\"Settings\"><svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M12.22 2h-.44a2 2 0 0 0-2 2v.18a2 2 0 0 1-1 1.73l-.43.25a2 2 0 0 1-2 0l-.15-.08a2 2 0 0 0-2.73.73l-.22.38a2 2 0 0 0 .73 2.73l.15.1a2 2 0 0 1 1 1.72v.51a2 2 0 0 1-1 1.74l-.15.09a2 2 0 0 0-.73 2.73l.22.38a2 2 0 0 0 2.73.73l.15-.08a2 2 0 0 1 2 0l.43.25a2 2 0 0 1 1 1.73V20a2 2 0 0 0 2 2h.44a2 2 0 0 0 2-2v-.18a2 2 0 0 1 1-1.73l.43-.25a2 2 0 0 1 2 0l.15.08a2 2 0 0 0 2.73-.73l.22-.39a2 2 0 0 0-.73-2.73l-.15-.08a2 2 0 0 1-1-1.74v-.5a2 2 0 0 1 1-1.74l.15-.09a2 2 0 0 0 .73-2.73l-.22-.38a2 2 0 0 0-2.73-.73l-.15.08a2 2 0 0 1-2 0l-.43-.25a2 2 0 0 1-1-1.73V4a2 2 0 0 0-2-2z\"></path> <circle cx=\"12\" cy=\"12\" r=\"3\"></circle></svg></button><div x-show=\"settingsOpen\" x-cloak x-transition class=\"absolute right-0 top-full mt-2 w-72 rounded-xl shadow-2xl p-3 z-50\" style=\"background-color: var(--bg-secondary); border: 1px solid var(--border);\"><div class=\"flex items-center justify-between mb-2 px-1\"><span class=\"text-sm font-semLine truncated
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 9, "\" data-json=\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var10 string
+		templ_7745c5c3_Var10, templ_7745c5c3_Err = templ.ResolveAttributeValue(fmt.Sprintf(`{"chapterEndpoint":"%s","progressEndpoint":"%s"}`,
+			"/api/media-items/"+metadata.MediaItemID+"/chapters",
+			"/api/media-items/"+metadata.MediaItemID+"/progress"))
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 46, Col: 57}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var10)
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 10, "\"><!-- §17 wind-down dim: the sleep ticker eases this toward 35%\n\t\t\t     black across a countdown's final 30s; pointer-events-none\n\t\t\t     keeps the page usable, stop/finish resets it. --><div class=\"fixed inset-0 pointer-events-none z-40\" :style=\"'opacity:' + sleepDim + '; background: #000; transition: opacity 1s linear;'\"></div><div class=\"h-full flex flex-col items-center justify-center px-4 gap-6 select-none\"><!-- Header: back to the detail page (reader-style exit) and the\n\t\t\t     chapter launcher. Floating drawer, never in-flow (A2b). --><div class=\"absolute top-0 inset-x-0 z-30 flex items-center justify-between px-4 py-3\"><button type=\"button\" @click=\"backToDetail()\" class=\"rounded-full p-2 hover:bg-surface-hover transition-colors\" style=\"color: var(--text-primary);\" aria-label=\"Back to book details\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M19 12H5\"></path> <path d=\"m12 19-7-7 7-7\"></path></svg></button> <span class=\"inline-flex items-center gap-2\"><button type=\"button\" @click=\"bookmarksOpen = !bookmarksOpen\" class=\"rounded-full p-2 hover:bg-surface-hover transition-colors\" style=\"color: var(--text-primary); border: 1px solid var(--border); background-color: color-mix(in srgb, var(--bg-secondary) 80%, transparent);\" :aria-label=\"'Open bookmarks (' + bookmarks.length + ')'\" title=\"Bookmarks\"><svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"m19 21-7-4-7 4V5a2 2 0 0 1 2-2h10a2 2 0 0 1 2 2z\"></path></svg></button> <button type=\"button\" @click=\"chaptersOpen = !chaptersOpen\" class=\"text-sm font-semibold px-4 py-2 rounded-full hover:bg-surface-hover transition-colors inline-flex items-center gap-1.5\" style=\"color: var(--text-primary); border: 1px solid var(--border); background-color: color-mix(in srgb, var(--bg-secondary) 80%, transparent);\" :aria-label=\"'Open chapter list (currently chapter ' + (currentChapterIdx + 1) + ' of ' + (chapters.length || 1) + ')'\" title=\"Chapters\"><span>Chapter</span> <span class=\"tabular-nums\" x-text=\"(currentChapterIdx + 1) + '/' + (chapters.length || 1)\">1/1</span> <svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"m6 9 6 6 6-6\"></path></svg></button> <button type=\"button\" @click=\"helpOpen = !helpOpen\" class=\"rounded-full p-2 hover:bg-surface-hover transition-colors\" style=\"color: var(--text-primary); border: 1px solid var(--border); background-color: color-mix(in srgb, var(--bg-secondary) 80%, transparent);\" aria-label=\"Shortcuts &amp; interactions\" title=\"Shortcuts &amp; interactions (?)\"><svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"2\" y=\"4\" width=\"20\" height=\"16\" rx=\"2\"></rect> <path d=\"M6 8h.01M10 8h.01M14 8h.01M18 8h.01M6 12h.01M10 12h.01M14 12h.01M18 12h.01M8 16h8\"></path></svg></button><div class=\"relative\" @click.outside=\"settingsOpen = false\"><button type=\"button\" @click=\"settingsOpen = !settingsOpen\" class=\"rounded-full p-2 hover:bg-surface-hover transition-colors\" :class=\"settingsOpen ? 'opacity-100' : 'opacity-90'\" style=\"color: var(--text-primary); border: 1px solid var(--border); background-color: color-mix(in srgb, var(--bg-secondary) 80%, transparent);\" aria-label=\"Player settings\" title=\"Settings\"><svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M12.22 2h-.44a2 2 0 0 0-2 2v.18a2 2 0 0 1-1 1.73l-.43.25a2 2 0 0 1-2 0l-.15-.08a2 2 0 0 0-2.73.73l-.22.38a2 2 0 0 0 .73 2.73l.15.1a2 2 0 0 1 1 1.72v.51a2 2 0 0 1-1 1.74l-.15.09a2 2 0 0 0-.73 2.73l.22.38a2 2 0 0 0 2.73.73l.15-.08a2 2 0 0 1 2 0l.43.25a2 2 0 0 1 1 1.73V20a2 2 0 0 0 2 2h.44a2 2 0 0 0 2-2v-.18a2 2 0 0 1 1-1.73l.43-.25a2 2 0 0 1 2 0l.15.08a2 2 0 0 0 2.73-.73l.22-.39a2 2 0 0 0-.73-2.73l-.15-.08a2 2 0 0 1-1-1.74v-.5a2 2 0 0 1 1-1.74l.15-.09a2 2 0 0 0 .73-2.73l-.22-.38a2 2 0 0 0-2.73-.73l-.15.08a2 2 0 0 1-2 0l-.43-.25a2 2 0 0 1-1-1.73V4a2 2 0 0 0-2-2z\"></path> <circle cx=\"12\" cy=\"12\" r=\"3\"></circle></svg></button><div x-show=\"settingsOpen\" x-cloak x-transition class=\"absolute right-0 top-full mt-2 w-72 rounded-xl shadow-2xl p-3 z-50\" style=\"background-color: var(--bg-secondary); border: 1px solid var(--border);\"><div class=\"flex items-center justify-between mb-2 px-1\"><span class=\"text-sm font-seLine truncated
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		for _, rate := range SpeedOptions {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 10, "<option value=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 11, "<option value=\"")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			var templ_7745c5c3_Var10 string
-			templ_7745c5c3_Var10, templ_7745c5c3_Err = templ.ResolveAttributeValue(fmt.Sprintf("%g", rate))
-			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 168, Col: 41}
-			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var10)
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 11, "\" :selected=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var11 string
-			templ_7745c5c3_Var11, templ_7745c5c3_Err = templ.ResolveAttributeValue(fmt.Sprintf("isDefaultSpeed(%g)", rate))
+			templ_7745c5c3_Var11, templ_7745c5c3_Err = templ.ResolveAttributeValue(fmt.Sprintf("%g", rate))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 169, Col: 61}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 169, Col: 41}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var11)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 12, "\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 12, "\" :selected=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var12 string
-			templ_7745c5c3_Var12, templ_7745c5c3_Err = templ.JoinStringErrs(fmt.Sprintf("%g×", rate))
+			templ_7745c5c3_Var12, templ_7745c5c3_Err = templ.ResolveAttributeValue(fmt.Sprintf("isDefaultSpeed(%g)", rate))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 170, Col: 37}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 170, Col: 61}
 			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var12))
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var12)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 13, "</option>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 13, "\">")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 14, "</select></div></div></div></span></div><!-- Cover + title --><div class=\"flex flex-col items-center gap-3 text-center\"><div class=\"w-48 h-72 md:w-56 md:h-80 rounded-2xl overflow-hidden shadow-lg shrink-0 bg-cover bg-center\" style=\"background-color: var(--surface-hover);\">")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		if metadata.CoverImagePath != "" {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 15, "<img src=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var13 string
-			templ_7745c5c3_Var13, templ_7745c5c3_Err = templ.ResolveAttributeValue(metadata.CoverImagePath)
+			templ_7745c5c3_Var13, templ_7745c5c3_Err = templ.JoinStringErrs(fmt.Sprintf("%g×", rate))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 184, Col: 36}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 171, Col: 37}
 			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var13)
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var13))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 16, "\" alt=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 14, "</option>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 15, "</select></div></div></div></span></div><!-- Cover + title --><div class=\"flex flex-col items-center gap-3 text-center\"><div class=\"w-48 h-72 md:w-56 md:h-80 rounded-2xl overflow-hidden shadow-lg shrink-0 bg-cover bg-center\" style=\"background-color: var(--surface-hover);\">")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		if metadata.CoverImagePath != "" {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 16, "<img src=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var14 string
-			templ_7745c5c3_Var14, templ_7745c5c3_Err = templ.ResolveAttributeValue(metadata.Title)
+			templ_7745c5c3_Var14, templ_7745c5c3_Err = templ.ResolveAttributeValue(metadata.CoverImagePath)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 185, Col: 27}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 185, Col: 36}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var14)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 17, "\" class=\"w-full h-full object-cover\" data-fallback=\"hide\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 17, "\" alt=\"")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var15 string
+			templ_7745c5c3_Var15, templ_7745c5c3_Err = templ.ResolveAttributeValue(metadata.Title)
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 186, Col: 27}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var15)
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 18, "\" class=\"w-full h-full object-cover\" data-fallback=\"hide\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		} else {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 18, "<span class=\"text-5xl flex items-center justify-center h-full\" style=\"color: var(--text-secondary);\">🎧</span>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 19, "<span class=\"text-5xl flex items-center justify-center h-full\" style=\"color: var(--text-secondary);\">🎧</span>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 19, "</div><div class=\"max-w-md px-4\"><h1 class=\"font-semibold text-lg leading-snug line-clamp-2\" style=\"color: var(--text-primary);\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 20, "</div><div class=\"max-w-md px-4\"><h1 class=\"font-semibold text-lg leading-snug line-clamp-2\" style=\"color: var(--text-primary);\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		var templ_7745c5c3_Var15 string
+		var templ_7745c5c3_Var16 string
-		templ_7745c5c3_Var15, templ_7745c5c3_Err = templ.JoinStringErrs(metadata.Title)
+		templ_7745c5c3_Var16, templ_7745c5c3_Err = templ.JoinStringErrs(metadata.Title)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 194, Col: 117}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/audio_reader.templ`, Line: 195, Col: 117}
 		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var15))
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var16))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 20, "</h1><p class=\"text-sm mt-0.5 truncate\" style=\"color: var(--text-secondary);\" x-text=\"chapterTitle()\">—</p></div></div><!-- Scrubber + transports --><div class=\"w-full max-w-xl flex flex-col gap-2\"><div class=\"flex items-center gap-2 text-xs tabular-nums\" style=\"color: var(--text-secondary);\"><span class=\"inline-block min-w-[4.75rem]\" x-text=\"fmtTime(scrubbing ? scrubValue : currentTime)\">0:00</span><div id=\"scrub-area\" class=\"relative flex-1 h-6 flex items-center cursor-pointer\" style=\"touch-action: none;\" @pointerdown=\"scrubPointerDown($event)\" @pointermove=\"scrubPointerMove($event)\" @pointerup=\"scrubPointerUp($event)\" @pointercancel=\"scrubPointerUp($event)\" @pointerleave=\"scrubPointerLeave()\" @wheel.prevent=\"onScrubWheel($event)\"><!-- Base track --><div class=\"absolute inset-x-0 top-1/2 -translate-y-1/2 h-1.5 rounded-full pointer-events-none\" style=\"background-color: var(--surface-hover);\"></div><!-- Elapsed fill --><div class=\"absolute top-1/2 -translate-y-1/2 h-1.5 rounded-full pointer-events-none\" :style=\"'left:0;width:' + scrubFillPct() + '%;background-color:var(--accent);'\"></div><!-- Buffered span: the ACTIVE track's element buffer only --><template x-if=\"bufferSpan()\"><div class=\"absolute top-1/2 -translate-y-1/2 h-1.5 rounded-full pointer-events-none\" :style=\"'left:' + bufferSpan().left + '%;width:' + bufferSpan().width + '%;background-color:var(--accent-muted);'\"></div></template><!-- Chapter ticks: density-decimated, current chapter tinted --><div id=\"scrub-ticks\" class=\"absolute inset-0 pointer-events-none\"><template x-for=\"idx in tickIndices\" :key=\"'tick' + idx\"><div class=\"absolute top-1/2 -translate-x-1/2 -translate-y-1/2 h-2 w-0.5 rounded-full\" :class=\"currentChapterIdx === idx ? 'opacity-100' : 'opacity-40'\" :style=\"'left:' + (chapters[idx].start / (chaptersDuration() || 1) * 100) + '%;background-color:' + (currentChapterIdx === idx ? 'var(--accent)' : 'var(--text-secondary)') + ';'\"></div></template></div><!-- §9 magnet: the line a click would land on (hover\n\t\t\t\t\t\t     inside the pixel radius locks the tooltip here) --><div x-show=\"hoverSnapped && !scrubbing\" x-cloak class=\"absolute top-1/2 -translate-x-1/2 -translate-y-1/2 h-4 w-px rounded-full pointer-events-none\" :style=\"'left:' + hoverPct + '%;background-color:var(--accent);'\"></div><input id=\"audio-scrub\" type=\"range\" min=\"0\" step=\"0.1\" :max=\"chaptersDuration() || 1\" :value=\"scrubbing ? scrubValue : currentTime\" class=\"relative w-full\" @input=\"onScrubInput($event)\" @change=\"commitScrub()\" aria-label=\"Seek position\"><!-- Hover tooltip: time + chapter under the pointer --><div x-show=\"hoverSeconds !== null && !scrubbing\" x-cloak class=\"absolute bottom-full mb-1 -translate-x-1/2 whitespace-nowrap rounded-md px-2 py-1 text-[11px] shadow-lg pointer-events-none\" :style=\"'left:' + hoverPct + '%;background-color:var(--bg-secondary);border:1px solid var(--border);color:var(--text-primary);'\"><span x-text=\"hoverSeconds !== null ? fmtTime(hoverSeconds) : ''\"></span> <span style=\"color: var(--text-secondary);\" x-text=\"hoverSeconds !== null ? ' — ' + chapterTitleAt(hoverSeconds) : ''\"></span></div><!-- Precision rail (§9): Shift+drag on mouse, or a touch\n\t\t\t\t\t\t     drag pulled off the bar — ±5 min or tighter, free\n\t\t\t\t\t\t     mapping inside. Edge labels self-document the window\n\t\t\t\t\t\t     (floats over the transports, page never shifts) --><div x-show=\"railVisible\" x-cloak class=\"absolute top-full mt-1 inset-x-0 h-12 rounded-lg shadow-lg p-1.5 pointer-events-none\" :style=\"'background-color: var(--bg-secondary); border: 1px solid var(--border); z-index: 30;' + (railLiftY ? ' transform: translateY(' + railLiftY + 'px);' : '')\"><div class=\"relative h-full\"><div class=\"absolute inset-x-0 top-1/2 h-px\" style=\"background-color: var(--border);\"></div><template x-for=\"tick in railTickList\" :key=\"'rtick' + tick.start\"><div class=\"absolute top-1 bottom-1 w-px\" :style=\"railTickStyle(tick)\"></div></template><div class=\"absolute top-0 bottom-0 w-0.5 -translate-x-1/2 rounded-full\" :style=\"'left:' + railMarkerPct() + '%;background-color:var(--accent);'\"></div><div class=\"absolute left-1 top-0.5 text-[10px] tabular-nums whitespace-nowrap\" style=\"color: var(--text-primary);\" x-text=\"fmtTime(scrubValue) + ' — ' + chapterTitleAt(scrubValue)\"></div><div class=\"absolute left-1 bottom-0.5 text-[9px] tabular-nums\" style=\"color: var(--text-secondary);\" x-text=\"fmtTime(railFrom)\"></div><div class=\"absolute right-1 bottom-0.5 text-[9px] tabular-nums\" style=\"color: var(--text-secondary);\" x-text=\"fmtTime(railTo)\"></div></div></div></div><button type=\"button\" class=\"inline-block min-w-[4.75rem] text-right cursor-pointer\" x-text=\"endTimeText()\" :aria-label=\"endTimeAria()\" :title=\"endTimeAria()\" @click=\"cycleEndTLine truncated
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 21, "</h1><p class=\"text-sm mt-0.5 truncate\" style=\"color: var(--text-secondary);\" x-text=\"chapterTitle()\">—</p></div></div><!-- Scrubber + transports --><div class=\"w-full max-w-xl flex flex-col gap-2\"><div class=\"flex items-center gap-2 text-xs tabular-nums\" style=\"color: var(--text-secondary);\"><span class=\"inline-block min-w-[4.75rem]\" x-text=\"fmtTime(scrubbing ? scrubValue : currentTime)\">0:00</span><div id=\"scrub-area\" class=\"relative flex-1 h-6 flex items-center cursor-pointer\" style=\"touch-action: none;\" @pointerdown=\"scrubPointerDown($event)\" @pointermove=\"scrubPointerMove($event)\" @pointerup=\"scrubPointerUp($event)\" @pointercancel=\"scrubPointerUp($event)\" @pointerleave=\"scrubPointerLeave()\" @wheel.prevent=\"onScrubWheel($event)\"><!-- Base track --><div class=\"absolute inset-x-0 top-1/2 -translate-y-1/2 h-1.5 rounded-full pointer-events-none\" style=\"background-color: var(--surface-hover);\"></div><!-- Elapsed fill --><div class=\"absolute top-1/2 -translate-y-1/2 h-1.5 rounded-full pointer-events-none\" :style=\"'left:0;width:' + scrubFillPct() + '%;background-color:var(--accent);'\"></div><!-- Buffered span: the ACTIVE track's element buffer only --><template x-if=\"bufferSpan()\"><div class=\"absolute top-1/2 -translate-y-1/2 h-1.5 rounded-full pointer-events-none\" :style=\"'left:' + bufferSpan().left + '%;width:' + bufferSpan().width + '%;background-color:var(--accent-muted);'\"></div></template><!-- Chapter ticks: density-decimated, current chapter tinted --><div id=\"scrub-ticks\" class=\"absolute inset-0 pointer-events-none\"><template x-for=\"idx in tickIndices\" :key=\"'tick' + idx\"><div class=\"absolute top-1/2 -translate-x-1/2 -translate-y-1/2 h-2 w-0.5 rounded-full\" :class=\"currentChapterIdx === idx ? 'opacity-100' : 'opacity-40'\" :style=\"'left:' + (chapters[idx].start / (chaptersDuration() || 1) * 100) + '%;background-color:' + (currentChapterIdx === idx ? 'var(--accent)' : 'var(--text-secondary)') + ';'\"></div></template></div><!-- §9 magnet: the line a click would land on (hover\n\t\t\t\t\t\t     inside the pixel radius locks the tooltip here) --><div x-show=\"hoverSnapped && !scrubbing\" x-cloak class=\"absolute top-1/2 -translate-x-1/2 -translate-y-1/2 h-4 w-px rounded-full pointer-events-none\" :style=\"'left:' + hoverPct + '%;background-color:var(--accent);'\"></div><input id=\"audio-scrub\" type=\"range\" min=\"0\" step=\"0.1\" :max=\"chaptersDuration() || 1\" :value=\"scrubbing ? scrubValue : currentTime\" class=\"relative w-full\" @input=\"onScrubInput($event)\" @change=\"commitScrub()\" aria-label=\"Seek position\"><!-- Hover tooltip: time + chapter under the pointer --><div x-show=\"hoverSeconds !== null && !scrubbing\" x-cloak class=\"absolute bottom-full mb-1 -translate-x-1/2 whitespace-nowrap rounded-md px-2 py-1 text-[11px] shadow-lg pointer-events-none\" :style=\"'left:' + hoverPct + '%;background-color:var(--bg-secondary);border:1px solid var(--border);color:var(--text-primary);'\"><span x-text=\"hoverSeconds !== null ? fmtTime(hoverSeconds) : ''\"></span> <span style=\"color: var(--text-secondary);\" x-text=\"hoverSeconds !== null ? ' — ' + chapterTitleAt(hoverSeconds) : ''\"></span></div><!-- Precision rail (§9): Shift+drag on mouse, or a touch\n\t\t\t\t\t\t     drag pulled off the bar — ±5 min or tighter, free\n\t\t\t\t\t\t     mapping inside. Edge labels self-document the window\n\t\t\t\t\t\t     (floats over the transports, page never shifts) --><div x-show=\"railVisible\" x-cloak class=\"absolute top-full mt-1 inset-x-0 h-12 rounded-lg shadow-lg p-1.5 pointer-events-none\" :style=\"'background-color: var(--bg-secondary); border: 1px solid var(--border); z-index: 30;' + (railLiftY ? ' transform: translateY(' + railLiftY + 'px);' : '')\"><div class=\"relative h-full\"><div class=\"absolute inset-x-0 top-1/2 h-px\" style=\"background-color: var(--border);\"></div><template x-for=\"tick in railTickList\" :key=\"'rtick' + tick.start\"><div class=\"absolute top-1 bottom-1 w-px\" :style=\"railTickStyle(tick)\"></div></template><div class=\"absolute top-0 bottom-0 w-0.5 -translate-x-1/2 rounded-full\" :style=\"'left:' + railMarkerPct() + '%;background-color:var(--accent);'\"></div><div class=\"absolute left-1 top-0.5 text-[10px] tabular-nums whitespace-nowrap\" style=\"color: var(--text-primary);\" x-text=\"fmtTime(scrubValue) + ' — ' + chapterTitleAt(scrubValue)\"></div><div class=\"absolute left-1 bottom-0.5 text-[9px] tabular-nums\" style=\"color: var(--text-secondary);\" x-text=\"fmtTime(railFrom)\"></div><div class=\"absolute right-1 bottom-0.5 text-[9px] tabular-nums\" style=\"color: var(--text-secondary);\" x-text=\"fmtTime(railTo)\"></div></div></div></div><button type=\"button\" class=\"inline-block min-w-[4.75rem] text-right cursor-pointer\" x-text=\"endTimeText()\" :aria-label=\"endTimeAria()\" :title=\"endTimeAria()\" @click=\"cycleEndTLine truncated
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}

templates/profile_form.templ

@@ -87,6 +87,16 @@ templ ProfileForm(user User, actionURL string, requireCurrentPassword bool, show
 						}
 					</select>
 				</div>
+				<div>
+					<label class="block text-xs font-semibold uppercase tracking-wide mb-1.5" style="color: var(--text-secondary)">Keep Screen Awake</label>
+					<select
+						name="keep_screen_awake"
+						class="input"
+					>
+						<option value="true" selected?={ user.KeepScreenAwake }>On</option>
+						<option value="false" selected?={ !user.KeepScreenAwake }>Off</option>
+					</select>
+				</div>
 				<div>
 					<label class="block text-xs font-semibold uppercase tracking-wide mb-1.5" style="color: var(--text-secondary)">Timezone</label>
 					<select

templates/profile_form_templ.go

@@ -228,277 +228,297 @@ func ProfileForm(user User, actionURL string, requireCurrentPassword bool, showR
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 27, "</select></div><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Timezone</label> <select name=\"timezone\" class=\"input\"><option value=\"UTC\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 27, "</select></div><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Keep Screen Awake</label> <select name=\"keep_screen_awake\" class=\"input\"><option value=\"true\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "UTC" {
+		if user.KeepScreenAwake {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 29, ">UTC (UTC+0)</option> <option value=\"Pacific/Honolulu\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 29, ">On</option> <option value=\"false\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Pacific/Honolulu" {
+		if !user.KeepScreenAwake {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 30, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 31, ">Hawaii (UTC-10)</option> <option value=\"America/Anchorage\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 31, ">Off</option></select></div><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Timezone</label> <select name=\"timezone\" class=\"input\"><option value=\"UTC\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "America/Anchorage" {
+		if user.Timezone == "UTC" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 32, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, ">Alaska (UTC-9/-8)</option> <option value=\"America/Los_Angeles\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, ">UTC (UTC+0)</option> <option value=\"Pacific/Honolulu\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "America/Los_Angeles" {
+		if user.Timezone == "Pacific/Honolulu" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 34, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, ">Pacific (UTC-8/-7)</option> <option value=\"America/Denver\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, ">Hawaii (UTC-10)</option> <option value=\"America/Anchorage\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "America/Denver" {
+		if user.Timezone == "America/Anchorage" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 36, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, ">Mountain (UTC-7/-6)</option> <option value=\"America/Phoenix\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, ">Alaska (UTC-9/-8)</option> <option value=\"America/Los_Angeles\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "America/Phoenix" {
+		if user.Timezone == "America/Los_Angeles" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 38, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, ">Mountain - no DST (UTC-7)</option> <option value=\"America/Chicago\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, ">Pacific (UTC-8/-7)</option> <option value=\"America/Denver\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "America/Chicago" {
+		if user.Timezone == "America/Denver" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 40, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, ">Central (UTC-6/-5)</option> <option value=\"America/New_York\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, ">Mountain (UTC-7/-6)</option> <option value=\"America/Phoenix\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "America/New_York" {
+		if user.Timezone == "America/Phoenix" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 42, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, ">Eastern (UTC-5/-4)</option> <option value=\"America/Sao_Paulo\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, ">Mountain - no DST (UTC-7)</option> <option value=\"America/Chicago\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "America/Sao_Paulo" {
+		if user.Timezone == "America/Chicago" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 44, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 45, ">Brasilia (UTC-3/-2)</option> <option value=\"Europe/London\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 45, ">Central (UTC-6/-5)</option> <option value=\"America/New_York\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Europe/London" {
+		if user.Timezone == "America/New_York" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 46, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 47, ">British (UTC+0/+1)</option> <option value=\"Europe/Paris\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 47, ">Eastern (UTC-5/-4)</option> <option value=\"America/Sao_Paulo\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Europe/Paris" {
+		if user.Timezone == "America/Sao_Paulo" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 48, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 49, ">Central European (UTC+1/+2)</option> <option value=\"Europe/Helsinki\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 49, ">Brasilia (UTC-3/-2)</option> <option value=\"Europe/London\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Europe/Helsinki" {
+		if user.Timezone == "Europe/London" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 50, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 51, ">Eastern European (UTC+2/+3)</option> <option value=\"Europe/Moscow\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 51, ">British (UTC+0/+1)</option> <option value=\"Europe/Paris\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Europe/Moscow" {
+		if user.Timezone == "Europe/Paris" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 52, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 53, ">Moscow (UTC+3)</option> <option value=\"Asia/Tehran\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 53, ">Central European (UTC+1/+2)</option> <option value=\"Europe/Helsinki\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Asia/Tehran" {
+		if user.Timezone == "Europe/Helsinki" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 54, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 55, ">Iran (UTC+3:30)</option> <option value=\"Asia/Dubai\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 55, ">Eastern European (UTC+2/+3)</option> <option value=\"Europe/Moscow\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Asia/Dubai" {
+		if user.Timezone == "Europe/Moscow" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 56, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 57, ">Gulf (UTC+4)</option> <option value=\"Asia/Karachi\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 57, ">Moscow (UTC+3)</option> <option value=\"Asia/Tehran\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Asia/Karachi" {
+		if user.Timezone == "Asia/Tehran" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 58, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 59, ">Pakistan (UTC+5)</option> <option value=\"Asia/Kolkata\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 59, ">Iran (UTC+3:30)</option> <option value=\"Asia/Dubai\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Asia/Kolkata" {
+		if user.Timezone == "Asia/Dubai" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 60, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 61, ">India (UTC+5:30)</option> <option value=\"Asia/Dhaka\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 61, ">Gulf (UTC+4)</option> <option value=\"Asia/Karachi\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Asia/Dhaka" {
+		if user.Timezone == "Asia/Karachi" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 62, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 63, ">Bangladesh (UTC+6)</option> <option value=\"Asia/Bangkok\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 63, ">Pakistan (UTC+5)</option> <option value=\"Asia/Kolkata\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Asia/Bangkok" {
+		if user.Timezone == "Asia/Kolkata" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 64, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 65, ">Indochina (UTC+7)</option> <option value=\"Asia/Shanghai\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 65, ">India (UTC+5:30)</option> <option value=\"Asia/Dhaka\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Asia/Shanghai" {
+		if user.Timezone == "Asia/Dhaka" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 66, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 67, ">China (UTC+8)</option> <option value=\"Asia/Tokyo\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 67, ">Bangladesh (UTC+6)</option> <option value=\"Asia/Bangkok\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Asia/Tokyo" {
+		if user.Timezone == "Asia/Bangkok" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 68, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 69, ">Japan/Korea (UTC+9)</option> <option value=\"Australia/Darwin\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 69, ">Indochina (UTC+7)</option> <option value=\"Asia/Shanghai\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Australia/Darwin" {
+		if user.Timezone == "Asia/Shanghai" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 70, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 71, ">Australian Central (UTC+9:30)</option> <option value=\"Australia/Sydney\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 71, ">China (UTC+8)</option> <option value=\"Asia/Tokyo\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Australia/Sydney" {
+		if user.Timezone == "Asia/Tokyo" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 72, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 73, ">Australian Eastern (UTC+10/+11)</option> <option value=\"Pacific/Auckland\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 73, ">Japan/Korea (UTC+9)</option> <option value=\"Australia/Darwin\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if user.Timezone == "Pacific/Auckland" {
+		if user.Timezone == "Australia/Darwin" {
 			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 74, " selected")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 75, ">New Zealand (UTC+12/+13)</option></select></div>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 75, ">Australian Central (UTC+9:30)</option> <option value=\"Australia/Sydney\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		if user.Timezone == "Australia/Sydney" {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 76, " selected")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 77, ">Australian Eastern (UTC+10/+11)</option> <option value=\"Pacific/Auckland\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		if user.Timezone == "Pacific/Auckland" {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 78, " selected")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 79, ">New Zealand (UTC+12/+13)</option></select></div>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		if showRoleField {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 76, "<div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Role</label> <select name=\"role\" class=\"input\"><option value=\"user\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 80, "<div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Role</label> <select name=\"role\" class=\"input\"><option value=\"user\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			if user.Role == "user" {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 77, " selected")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 81, " selected")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 78, ">User</option> <option value=\"admin\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 82, ">User</option> <option value=\"admin\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			if user.Role == "admin" {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 79, " selected")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 83, " selected")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 80, ">Admin</option></select></div>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 84, ">Admin</option></select></div>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 81, "</div></div><div x-data=\"profilePasswordForm\"><div class=\"flex items-center gap-2 mb-4\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 85, "</div></div><div x-data=\"profilePasswordForm\"><div class=\"flex items-center gap-2 mb-4\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -506,12 +526,12 @@ func ProfileForm(user User, actionURL string, requireCurrentPassword bool, showR
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 82, "<h3 class=\"text-lg font-semibold\" style=\"color: var(--text-primary)\">Change Password</h3></div>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 86, "<h3 class=\"text-lg font-semibold\" style=\"color: var(--text-primary)\">Change Password</h3></div>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		if requireCurrentPassword {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 83, "<div class=\"space-y-4 max-w-md\"><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Current Password</label> <input type=\"password\" name=\"current_password\" class=\"input\"></div><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">New Password</label> <input type=\"password\" id=\"new-password\" name=\"new_password\" class=\"input\"></div><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Confirm New Password</label> <input type=\"password\" id=\"confirm-password\" name=\"confirm_password\" class=\"input\"></div><div id=\"password-requirements\" class=\"text-xs\"></div><button type=\"button\" id=\"password-submit-btn\" hx-put=\"/api/auth/password\" hx-target=\"#password-result\" hx-swap=\"innerHTML\" hx-include=\"closest form\" class=\"btn btn-primary\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 87, "<div class=\"space-y-4 max-w-md\"><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Current Password</label> <input type=\"password\" name=\"current_password\" class=\"input\"></div><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">New Password</label> <input type=\"password\" id=\"new-password\" name=\"new_password\" class=\"input\"></div><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Confirm New Password</label> <input type=\"password\" id=\"confirm-password\" name=\"confirm_password\" class=\"input\"></div><div id=\"password-requirements\" class=\"text-xs\"></div><button type=\"button\" id=\"password-submit-btn\" hx-put=\"/api/auth/password\" hx-target=\"#password-result\" hx-swap=\"innerHTML\" hx-include=\"closest form\" class=\"btn btn-primary\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -519,25 +539,25 @@ func ProfileForm(user User, actionURL string, requireCurrentPassword bool, showR
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 84, "Update Password</button><div id=\"password-result\" class=\"mt-2\"></div></div>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 88, "Update Password</button><div id=\"password-result\" class=\"mt-2\"></div></div>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		} else {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 85, "<p class=\"text-sm italic mb-4\" style=\"color: var(--text-secondary);\">As an admin, you can change this user's password without knowing their current password.</p><div class=\"space-y-4 max-w-md\"><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">New Password</label> <input type=\"password\" id=\"new-password\" name=\"new_password\" class=\"input\"></div><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Confirm New Password</label> <input type=\"password\" id=\"confirm-password\" name=\"confirm_password\" class=\"input\"></div><div id=\"password-requirements\" class=\"text-xs\"></div><button type=\"button\" id=\"password-submit-btn\" hx-put=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 89, "<p class=\"text-sm italic mb-4\" style=\"color: var(--text-secondary);\">As an admin, you can change this user's password without knowing their current password.</p><div class=\"space-y-4 max-w-md\"><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">New Password</label> <input type=\"password\" id=\"new-password\" name=\"new_password\" class=\"input\"></div><div><label class=\"block text-xs font-semibold uppercase tracking-wide mb-1.5\" style=\"color: var(--text-secondary)\">Confirm New Password</label> <input type=\"password\" id=\"confirm-password\" name=\"confirm_password\" class=\"input\"></div><div id=\"password-requirements\" class=\"text-xs\"></div><button type=\"button\" id=\"password-submit-btn\" hx-put=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var9 string
 			templ_7745c5c3_Var9, templ_7745c5c3_Err = templ.ResolveAttributeValue("/api/auth/password/" + user.ID)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/profile_form.templ`, Line: 211, Col: 46}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/profile_form.templ`, Line: 221, Col: 46}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var9)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 86, "\" hx-target=\"#password-result\" hx-swap=\"innerHTML\" hx-include=\"closest form\" class=\"btn btn-primary\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 90, "\" hx-target=\"#password-result\" hx-swap=\"innerHTML\" hx-include=\"closest form\" class=\"btn btn-primary\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -545,22 +565,22 @@ func ProfileForm(user User, actionURL string, requireCurrentPassword bool, showR
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 87, "Reset Password</button><div id=\"password-result\" class=\"mt-2\"></div></div>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 91, "Reset Password</button><div id=\"password-result\" class=\"mt-2\"></div></div>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 88, "</div><div class=\"flex justify-end gap-3 pt-6 border-t\" style=\"border-color: var(--border);\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 92, "</div><div class=\"flex justify-end gap-3 pt-6 border-t\" style=\"border-color: var(--border);\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		if showCancelButton {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 89, "<button type=\"button\" @click=\"closeProfileModal()\" class=\"btn btn-secondary\">Cancel</button> ")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 93, "<button type=\"button\" @click=\"closeProfileModal()\" class=\"btn btn-secondary\">Cancel</button> ")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 90, "<button type=\"submit\" class=\"btn btn-primary\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 94, "<button type=\"submit\" class=\"btn btn-primary\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -568,7 +588,7 @@ func ProfileForm(user User, actionURL string, requireCurrentPassword bool, showR
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 91, "Save Changes</button></div><div id=\"profile-result\" class=\"mt-2\"></div></form>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 95, "Save Changes</button></div><div id=\"profile-result\" class=\"mt-2\"></div></form>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}

templates/reader.templ

@@ -17,6 +17,7 @@ func readerInitExpr(metadata ReaderMetadata) string {
 		"readingDirection": metadata.ReadingDirection,
 		"mangaType":        metadata.MangaType,
 		"treatAsComic":     metadata.TreatAsComic,
+		"keepScreenAwake":  metadata.KeepScreenAwake,
 	}
 	jsonBytes, _ := json.Marshal(config)
 	return fmt.Sprintf("initReader(%s)", string(jsonBytes))

templates/reader_templ.go

@@ -25,6 +25,7 @@ func readerInitExpr(metadata ReaderMetadata) string {
 		"readingDirection": metadata.ReadingDirection,
 		"mangaType":        metadata.MangaType,
 		"treatAsComic":     metadata.TreatAsComic,
+		"keepScreenAwake":  metadata.KeepScreenAwake,
 	}
 	jsonBytes, _ := json.Marshal(config)
 	return fmt.Sprintf("initReader(%s)", string(jsonBytes))
@@ -58,7 +59,7 @@ func Reader(user User, metadata ReaderMetadata) templ.Component {
 		var templ_7745c5c3_Var2 string
 		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(metadata.Title)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/reader.templ`, Line: 31, Col: 26}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/reader.templ`, Line: 32, Col: 26}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var2))
 		if templ_7745c5c3_Err != nil {
@@ -80,7 +81,7 @@ func Reader(user User, metadata ReaderMetadata) templ.Component {
 		var templ_7745c5c3_Var4 string
 		templ_7745c5c3_Var4, templ_7745c5c3_Err = templ.ResolveAttributeValue(readerInitExpr(metadata))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/reader.templ`, Line: 41, Col: 36}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/reader.templ`, Line: 42, Col: 36}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var4)
 		if templ_7745c5c3_Err != nil {
@@ -175,7 +176,7 @@ func ReaderChrome(metadata ReaderMetadata) templ.Component {
 		var templ_7745c5c3_Var7 templ.SafeURL
 		templ_7745c5c3_Var7, templ_7745c5c3_Err = templ.JoinURLErrs("/media/" + metadata.MediaItemID)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/reader.templ`, Line: 302, Col: 63}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/reader.templ`, Line: 303, Col: 63}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var7))
 		if templ_7745c5c3_Err != nil {
@@ -188,7 +189,7 @@ func ReaderChrome(metadata ReaderMetadata) templ.Component {
 		var templ_7745c5c3_Var8 string
 		templ_7745c5c3_Var8, templ_7745c5c3_Err = templ.JoinStringErrs(metadata.Title)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/reader.templ`, Line: 305, Col: 95}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/reader.templ`, Line: 306, Col: 95}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var8))
 		if templ_7745c5c3_Err != nil {
@@ -230,7 +231,7 @@ func drawerHeader(title string) templ.Component {
 		var templ_7745c5c3_Var10 string
 		templ_7745c5c3_Var10, templ_7745c5c3_Err = templ.JoinStringErrs(title)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/reader.templ`, Line: 577, Col: 35}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `templates/reader.templ`, Line: 578, Col: 35}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var10))
 		if templ_7745c5c3_Err != nil {

templates/types.go

@@ -20,6 +20,8 @@ type User struct {
 	// User-level default audiobook playback speed (plan §8); 0 means
 	// "unset" and renders as the 1× option.
 	DefaultAudioSpeed float64
+	// Whether the web reader/player should hold a Screen Wake Lock.
+	KeepScreenAwake bool
 }
 
 // SpeedOption is one entry of the default-playback-speed select — the
@@ -289,6 +291,9 @@ type ReaderMetadata struct {
 	// TreatAsComic: fixed-layout item in a comics/manga library gets
 	// comic reader treatment (bookmarks only — no highlights, no search).
 	TreatAsComic bool `json:"treat_as_comic"`
+	// KeepScreenAwake: user preference — the reader holds a Screen Wake
+	// Lock while open when true.
+	KeepScreenAwake bool `json:"keep_screen_awake"`
 }
 
 type ReadingProgress struct {

web/src/audio.ts

@@ -15,6 +15,7 @@
 import { Alpine } from "./alpine";
 import { renderNoteHtml } from "./markdown";
 import { showToast } from "./toast";
+import { WakeLockManager } from "./wake-lock";
 import {
   MOUSE_GUIDE,
   resolveShortcut,
@@ -288,6 +289,13 @@ Alpine.data("audioReader", () => ({
   // 30s of a countdown. Reset by stop/finish.
   sleepDim: 0,
 
+  // Screen wake lock (keep_screen_awake profile preference): held while
+  // playing so the display doesn't blank/lock mid-listen. The browser
+  // force-releases when the page hides; the manager re-acquires on
+  // visibility regain while audio is still going.
+  wakeLock: new WakeLockManager(),
+  keepAwakeEnabled: false,
+
   // Settings popover (plan §4): header gear → panel. Autoplay-on-open
   // is the first option; the panel is structured for more.
   settingsOpen: false,
@@ -336,6 +344,7 @@ Alpine.data("audioReader", () => ({
     const title = body.getAttribute("data-title") || "";
     const cover = body.getAttribute("data-cover") || "";
     const fileUrl = body.getAttribute("data-file-url") || "";
+    this.keepAwakeEnabled = body.getAttribute("data-keep-awake") === "true";
     this.mediaItemId = mediaId;
     this.title = title;
     this.fileUrl = fileUrl;
@@ -413,6 +422,7 @@ Alpine.data("audioReader", () => ({
       // is awake and asked for audio); stopSleep restores the volume.
       if (this.sleep.mode === "fading") this.stopSleep();
       this.updateMediaSessionState();
+      if (this.keepAwakeEnabled) void this.wakeLock.acquire();
     });
     audio.addEventListener("pause", () => {
       const now = performance.now();
@@ -423,6 +433,7 @@ Alpine.data("audioReader", () => ({
       this.playing = false;
       this.pushProgress(true);
       this.updateMediaSessionState();
+      if (this.keepAwakeEnabled) this.wakeLock.release();
     });
     window.addEventListener("pagehide", () => this.pushProgress(true));
     window.addEventListener("resize", () => this.recomputeTicks());

web/src/reader/reader.ts

@@ -7,6 +7,7 @@ import { getToken } from "../storage";
 import { showToast } from "../toast";
 import { renderNoteHtml, richPasteToMarkdown } from "../markdown";
 import { extractPdfPages, searchPdfPages, type PdfPageText } from "./pdf-search";
+import { WakeLockManager } from "../wake-lock";
 
 const HIGHLIGHT_COLORS = ["#ffd54f", "#a5d6a7", "#90caf9", "#f48fb1", "#ce93d8"];
 
@@ -398,6 +399,10 @@ document.addEventListener("alpine:init", () => {
     // comic reader treatment — bookmarks only, no text-selection
     // highlights, no in-book search.
     treatAsComic: false as boolean,
+    // Screen wake lock (keep_screen_awake profile preference): held for
+    // the whole reading session; the browser force-releases it when the
+    // page hides and the manager re-acquires on visibility regain.
+    wakeLock: new WakeLockManager(),
     comicFlow: "paged" as string,
     fxBrightness: 1 as number,
     fxContrast: 1 as number,
@@ -627,9 +632,13 @@ document.addEventListener("alpine:init", () => {
       readingDirection: string;
       mangaType: string;
       treatAsComic: boolean;
+      keepScreenAwake: boolean;
     }) {
       this.mediaItemId = config.mediaItemId;
       this.treatAsComic = config.treatAsComic;
+      // Hold the display awake for the reading session (best-effort;
+      // unsupported browsers and power-saver denials are silent no-ops).
+      if (config.keepScreenAwake) void this.wakeLock.acquire();
       // Reading state (position, bookmarks, annotations) is never baked
       // into the rendered page: the web reader is intrinsically tied to
       // the server, so it reads all of it from the APIs at open time —

web/src/wake-lock.test.ts

@@ -0,0 +1,186 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import {
+  WakeLockManager,
+  type WakeLockAPILike,
+  type WakeLockDoc,
+  type WakeLockSentinelLike,
+} from "./wake-lock";
+
+// The manager is intentionally dependency-injected (api + doc) so every
+// browser boundary is a fake here: sentinel lifecycles, the visibility
+// state machine, and the force-release-then-reacquire loop the spec
+// mandates when the page hides.
+
+type FakeSentinel = WakeLockSentinelLike & {
+  release: ReturnType<typeof vi.fn<() => Promise<void>>>;
+  emitRelease: () => void;
+};
+
+function fakeSentinel(): FakeSentinel {
+  const listeners: Array<() => void> = [];
+  const sentinel: FakeSentinel = {
+    release: vi.fn(async () => {
+      sentinel.emitRelease();
+    }),
+    // Narrow, structural (not a bare vi.fn) to satisfy the interface.
+    addEventListener: (_type: "release", listener: () => void) => {
+      listeners.push(listener);
+    },
+    emitRelease: () => {
+      for (const l of listeners) l();
+    },
+  };
+  return sentinel;
+}
+
+function fakeDoc(initial: DocumentVisibilityState): WakeLockDoc & {
+  setVisible: (state: DocumentVisibilityState) => void;
+  fireVisibility: () => void;
+} {
+  const listeners: Array<() => void> = [];
+  const doc = {
+    visibilityState: initial,
+    addEventListener: (_type: "visibilitychange", listener: () => void) => {
+      listeners.push(listener);
+    },
+    setVisible(state: DocumentVisibilityState) {
+      doc.visibilityState = state;
+    },
+    fireVisibility() {
+      for (const l of listeners) l();
+    },
+  };
+  return doc;
+}
+
+function fakeAPI(sentinel: FakeSentinel | null = fakeSentinel()) {
+  const request = vi.fn(async (_type: "screen") => {
+    if (!sentinel) throw new DOMException("denied", "NotAllowedError");
+    return sentinel;
+  });
+  return { request, sentinel };
+}
+
+describe("WakeLockManager", () => {
+  let doc: ReturnType<typeof fakeDoc>;
+
+  beforeEach(() => {
+    doc = fakeDoc("visible");
+  });
+
+  it("acquires a screen lock on acquire()", async () => {
+    const api = fakeAPI();
+    const manager = new WakeLockManager(api, doc);
+    await manager.acquire();
+    expect(api.request).toHaveBeenCalledWith("screen");
+    expect(manager.held).toBe(true);
+  });
+
+  it("is a silent no-op when the API is unsupported", async () => {
+    const manager = new WakeLockManager(null, doc);
+    await expect(manager.acquire()).resolves.toBeUndefined();
+    expect(manager.held).toBe(false);
+  });
+
+  it("does not double-request while a lock is held", async () => {
+    const api = fakeAPI();
+    const manager = new WakeLockManager(api, doc);
+    await manager.acquire();
+    await manager.acquire();
+    expect(api.request).toHaveBeenCalledTimes(1);
+  });
+
+  it("never requests while the page is hidden, but wants the lock on return", async () => {
+    doc.setVisible("hidden");
+    const api = fakeAPI();
+    const manager = new WakeLockManager(api, doc);
+    await manager.acquire();
+    expect(api.request).not.toHaveBeenCalled();
+    // Tab visible again — visibilitychange re-acquires while wanted.
+    doc.setVisible("visible");
+    manager.syncVisibility();
+    await vi.waitFor(() => expect(manager.held).toBe(true));
+    expect(api.request).toHaveBeenCalledTimes(1);
+  });
+
+  it("re-acquires after the browser force-releases on page hide", async () => {
+    const api = fakeAPI();
+    const manager = new WakeLockManager(api, doc);
+    await manager.acquire();
+    // Tab hides: browser releases the sentinel; the manager's release
+    // listener drops the stale handle (spec behavior, not ours).
+    doc.setVisible("hidden");
+    doc.fireVisibility();
+    api.sentinel!.emitRelease();
+    expect(manager.held).toBe(false);
+    // Tab returns with playback still going: lock comes back.
+    doc.setVisible("visible");
+    doc.fireVisibility();
+    await vi.waitFor(() => expect(manager.held).toBe(true));
+    expect(api.request).toHaveBeenCalledTimes(2);
+  });
+
+  it("release() drops the lock and stops re-acquisition", async () => {
+    const api = fakeAPI();
+    const manager = new WakeLockManager(api, doc);
+    await manager.acquire();
+    manager.release();
+    expect(api.sentinel!.release).toHaveBeenCalled();
+    expect(manager.held).toBe(false);
+    // Hide/return cycles do not bring the lock back once released —
+    // only a fresh acquire() (next play event) may.
+    doc.setVisible("hidden");
+    manager.syncVisibility();
+    doc.setVisible("visible");
+    manager.syncVisibility();
+    expect(api.request).toHaveBeenCalledTimes(1);
+  });
+
+  it("drops a lock that resolves after release() won the race", async () => {
+    const sentinel = fakeSentinel();
+    let resolveRequest: (s: FakeSentinel) => void = () => {};
+    const api: WakeLockAPILike = {
+      request: vi.fn(
+        () =>
+          new Promise<FakeSentinel>((resolve) => {
+            resolveRequest = resolve;
+          }),
+      ),
+    };
+    const manager = new WakeLockManager(api, doc);
+    const acquiring = manager.acquire();
+    manager.release();
+    resolveRequest(sentinel);
+    await acquiring;
+    // The stale sentinel is released immediately, never adopted.
+    expect(sentinel.release).toHaveBeenCalled();
+    expect(manager.held).toBe(false);
+  });
+
+  it("absorbs NotAllowedError (power saver, low battery) silently", async () => {
+    const api = fakeAPI(null);
+    const manager = new WakeLockManager(api, doc);
+    await expect(manager.acquire()).resolves.toBeUndefined();
+    expect(manager.held).toBe(false);
+  });
+
+  it("drops a lock that resolves while the page went hidden", async () => {
+    const sentinel = fakeSentinel();
+    let resolveRequest: (s: FakeSentinel) => void = () => {};
+    const api: WakeLockAPILike = {
+      request: vi.fn(
+        () =>
+          new Promise<FakeSentinel>((resolve) => {
+            resolveRequest = resolve;
+          }),
+      ),
+    };
+    const manager = new WakeLockManager(api, doc);
+    const acquiring = manager.acquire();
+    doc.setVisible("hidden");
+    resolveRequest(sentinel);
+    await acquiring;
+    expect(sentinel.release).toHaveBeenCalled();
+    expect(manager.held).toBe(false);
+  });
+});

web/src/wake-lock.ts

@@ -0,0 +1,97 @@
+// Screen Wake Lock manager — sanctioned JS island (engine, not a UI
+// renderer). Holds the display awake while the reader/player session is
+// active, gated by the user's keep_screen_awake profile preference
+// (default on).
+//
+// Spec boundaries this module works within:
+//   - The browser force-releases every screen wake lock when the page
+//     hides (tab switch, minimize, screen off). The `release` event
+//     fires; we drop the stale sentinel and re-acquire when the page
+//     becomes visible again while still wanted.
+//   - request() rejects with NotAllowedError while hidden, in power
+//     saver, or on low battery. The lock is best-effort: every failure
+//     path is silent, and visibility regain re-attempts.
+//   - Unsupported browsers (pre-126 Firefox, old iOS) simply never
+//     acquire — no polyfill, no video-element hack.
+
+export type WakeLockSentinelLike = {
+  release(): Promise<void>;
+  addEventListener(type: "release", listener: () => void): void;
+};
+
+export type WakeLockAPILike = {
+  request(type: "screen"): Promise<WakeLockSentinelLike>;
+};
+
+/** Minimal document surface used here — injectable for tests. */
+export type WakeLockDoc = {
+  visibilityState: DocumentVisibilityState;
+  addEventListener(type: "visibilitychange", listener: () => void): void;
+};
+
+function defaultAPI(): WakeLockAPILike | null {
+  if (typeof navigator === "undefined" || !("wakeLock" in navigator)) return null;
+  return (navigator as Navigator & { wakeLock?: WakeLockAPILike }).wakeLock ?? null;
+}
+
+export class WakeLockManager {
+  private api: WakeLockAPILike | null;
+  private doc: WakeLockDoc;
+  private sentinel: WakeLockSentinelLike | null = null;
+  private wanted = false;
+
+  constructor(api: WakeLockAPILike | null = defaultAPI(), doc: WakeLockDoc = document) {
+    this.api = api;
+    this.doc = doc;
+    doc.addEventListener("visibilitychange", () => this.syncVisibility());
+  }
+
+  /** Whether a lock is currently held (exposed for tests). */
+  get held(): boolean {
+    return this.sentinel !== null;
+  }
+
+  /** Begin wanting the screen awake. Safe to call repeatedly. */
+  async acquire(): Promise<void> {
+    this.wanted = true;
+    if (!this.api || this.sentinel || this.doc.visibilityState !== "visible") return;
+    try {
+      const sentinel = await this.api.request("screen");
+      // A release()/hide can race the async request — drop a lock that
+      // no longer serves the page state it was requested for.
+      if (!this.wanted || this.doc.visibilityState !== "visible") {
+        void sentinel.release().catch(() => {});
+        return;
+      }
+      sentinel.addEventListener("release", () => {
+        // Browser-side release (page hidden, screen off). Drop the
+        // handle; syncVisibility() re-acquires on visible while wanted.
+        this.sentinel = null;
+      });
+      this.sentinel = sentinel;
+    } catch {
+      // NotAllowedError etc — stay silent; syncVisibility() re-attempts
+      // when the page becomes visible again, if still wanted.
+      this.sentinel = null;
+    }
+  }
+
+  /** Stop wanting the screen awake. Safe when never acquired. */
+  release(): void {
+    this.wanted = false;
+    const sentinel = this.sentinel;
+    this.sentinel = null;
+    void sentinel?.release().catch(() => {});
+  }
+
+  /**
+   * Re-acquire after a browser-side release once the page is visible
+   * again (bound to visibilitychange in the constructor; exposed for
+   * tests to drive directly).
+   */
+  syncVisibility(): void {
+    if (this.wanted && !this.sentinel && this.doc.visibilityState === "visible") {
+      void this.acquire();
+    }
+  }
+}