diff --git a/static/js/sw.js b/static/js/sw.js
index 97ced2b..2113fd9 100644
--- a/static/js/sw.js
+++ b/static/js/sw.js
@@ -2,7 +2,7 @@
  * diora service worker — caches the app shell for offline use.
  */
 
-const CACHE = 'diora-v100';
+const CACHE = 'diora-v101';
 const SHELL = [
   '/static/css/app.css',
   '/static/js/app.js',
diff --git a/static/podcasts/native-podcast.js b/static/podcasts/native-podcast.js
index 3a2ca2e..24ebfac 100644
--- a/static/podcasts/native-podcast.js
+++ b/static/podcasts/native-podcast.js
@@ -1,4 +1,4 @@
-// Copied from diora-android 7dcc0c6 2026-10-04: web-native/static/native-podcast.js
+// Copied from diora-android 5821dfa 2026-10-12: web-native/static/native-podcast.js
 // by tools/sync_podcast_ui.py. Do not edit here: change it in diora-android
 // and copy again. The browser host is static/js/podcasts-web.js.
 
@@ -4405,6 +4405,22 @@
     if (epScreen && (before.episodeId !== player.episodeId || !!before.playing !== !!player.playing)) episodeScreenParts();
   };
 
+  // What plays, for the screensaver (native-saver.js): the player's report and the chapter at its place.
+  const nowAsked = new Set();
+  window.__dioraPlayerNow = function () {
+    if (!player || player.kind !== 'podcast') return player;
+    const d = details.get(player.episodeId);
+    if (!d && player.episodeId && !nowAsked.has(player.episodeId)) {
+      nowAsked.add(player.episodeId);
+      Promise.resolve(loadDetails(player.episodeId)).catch(() => {});
+    }
+    let chapter = '';
+    const chapters = (d && d.chapters) || [];
+    const t = (player.pos || 0) / 1000;
+    for (const c of chapters) if ((c.start || 0) <= t + 0.5) chapter = c.title || '';
+    return Object.assign({}, player, {chapter: plain(chapter)});
+  };
+
   // Ambient starts (app.js): an episode playing here pauses.
   window.__dioraPausePlayer = function () {
     if (player.kind !== 'podcast' || !player.playing || player.remote) return;
diff --git a/static/podcasts/podcast-ui.css b/static/podcasts/podcast-ui.css
index 7422bc7..39a02cf 100644
--- a/static/podcasts/podcast-ui.css
+++ b/static/podcasts/podcast-ui.css
@@ -1,4 +1,4 @@
-/* Copied from diora-android 67a915e 2026-10-03: the podcast parts of web-native/static/native.css
+/* Copied from diora-android 5821dfa 2026-10-12: the podcast parts of web-native/static/native.css
    (bottom sheet, podcasts) by tools/sync_podcast_ui.py. Do not edit here.
    The web's own additions are in podcasts-web.css. */
 
@@ -796,3 +796,185 @@ body.eink .nui-pod-facts a { text-decoration-color: #000; }
   background: rgba(0, 0, 0, 0.55);
   color: #ddd;
 }
+
+/* diora Reader (books only, native.js): no read-aloud, no cloud import. */
+.nui-reader-app #reader-tts-btn,
+.nui-reader-app #reader-tts-lang,
+.nui-reader-app button[onclick*="toggleCloudImport"],
+.nui-reader-app #cloud-browser { display: none !important; }
+
+/* Datenverbrauch (native-ui.js showDataUsage) */
+.nui-usage { padding: 4px 16px 12px; }
+.nui-usage-chips { display: flex; gap: 6px; margin-bottom: 12px; }
+.nui-usage-chip { padding: 6px 12px; border: 1px solid var(--border, #2a2a2a); border-radius: 16px; background: none; color: inherit; font: inherit; font-size: 13px; }
+.nui-usage-chip.on { border-color: var(--accent, #e63946); color: var(--accent, #e63946); }
+.nui-usage-total { display: flex; justify-content: space-between; gap: 12px; font-size: 14px; margin-bottom: 10px; }
+.nui-usage-total b { color: var(--accent, #e63946); }
+.nui-usage-table { width: 100%; border-collapse: collapse; font-size: 13px; }
+.nui-usage-table th { text-align: right; font-weight: 400; color: var(--nui-muted, #9a9a9a); padding: 2px 0 6px; }
+.nui-usage-table td { padding: 7px 0; border-top: 1px solid var(--border, #2a2a2a); vertical-align: top; }
+.nui-usage-table td + td { text-align: right; white-space: nowrap; padding-left: 10px; }
+.nui-usage-bar { display: block; height: 3px; margin-top: 4px; background: #2a2a2a; border-radius: 2px; overflow: hidden; }
+.nui-usage-bar > span { display: block; height: 100%; background: var(--accent, #e63946); }
+.nui-usage-note { font-size: 12px; color: var(--nui-muted, #9a9a9a); margin: 10px 0 0; }
+body.eink .nui-usage-bar > span { background: #000; }
+body.eink .nui-usage-total b { color: #000; }
+
+/* ---- sidebar layout (html.nui-sidebar, native-radio.js): the menu as a rail on the left,
+   the player bars at the bottom of the page. Always on a TV, a choice in the app menu elsewhere. ---- */
+
+.nui-rail-brand, .nui-rail-menu { display: none; }
+
+html.nui-sidebar { --nui-rail-w: 200px; }
+html.nui-sidebar body { padding-left: var(--nui-rail-w); }
+html.nui-sidebar.nui-reading body { padding-left: 0; }
+html.nui-sidebar #nui-dock { left: var(--nui-rail-w); }
+html.nui-sidebar #nui-tabbar {
+  position: fixed;
+  left: 0;
+  top: 0;
+  bottom: 0;
+  width: var(--nui-rail-w);
+  flex-direction: column;
+  padding: 18px 0 12px;
+  background: #0b0b0b;
+  border-right: 1px solid var(--border);
+  overflow-y: auto;
+}
+html.nui-sidebar #nui-tabbar button {
+  flex: 0 0 auto;
+  height: 46px;
+  flex-direction: row;
+  justify-content: flex-start;
+  gap: 14px;
+  padding: 0 22px;
+  font-size: 15px;
+  text-align: left;
+}
+html.nui-sidebar #nui-tabbar .nui-tab-icon { width: 22px; text-align: center; font-size: 19px; }
+html.nui-sidebar #nui-tabbar button.nui-active { background: #181818; box-shadow: inset 3px 0 0 var(--accent); }
+html.nui-sidebar .nui-rail-brand {
+  display: block;
+  padding: 0 22px 18px;
+  color: var(--accent);
+  font-weight: 700;
+  font-size: 22px;
+  letter-spacing: 0.08em;
+}
+html.nui-sidebar .nui-rail-menu { display: flex; margin-top: auto; }
+/* Home's own wordmark: the rail has it already. */
+html.nui-sidebar #tab-home .home-brand { display: none; }
+body.eink #nui-tabbar { background: #fff; }
+/* A narrow screen (a phone upright): the rail shows its signs only. */
+@media (max-width: 640px) {
+  html.nui-sidebar { --nui-rail-w: 60px; }
+  html.nui-sidebar #nui-tabbar button { padding: 0; justify-content: center; font-size: 0; gap: 0; }
+  html.nui-sidebar #nui-tabbar .nui-tab-icon { font-size: 21px; }
+  html.nui-sidebar .nui-rail-brand { padding: 0 0 14px; text-align: center; font-size: 16px; letter-spacing: 0; overflow: hidden; }
+}
+
+/* ---- television (html.nui-tv, native-tv.js): a focus that the remote moves ---- */
+
+html.nui-tv { scroll-padding: 24px 0 calc(var(--nui-dock-h, 0px) + 24px); }
+html.nui-tv .nui-tv-focus {
+  outline: 3px solid var(--accent) !important;
+  outline-offset: 2px;
+  border-radius: 6px;
+}
+html.nui-tv #nui-tabbar button.nui-tv-focus { outline-offset: -3px; background: #222; }
+html.nui-tv :focus:not(.nui-tv-focus) { outline: none; }
+
+/* Books and feeds hidden on the TV (unless switched on in the app menu); Home's
+   sections of them: native-tv.js (:has, which the e-readers' old WebView lacks). */
+html.nui-noread #nui-tabbar button[data-tab="books"],
+html.nui-noread #nui-tabbar button[data-tab="feeds"] { display: none; }
+
+/* ---- screensaver (native-saver.js): what plays, large, drifting slowly ---- */
+
+#nui-saver {
+  position: fixed;
+  inset: 0;
+  z-index: 3000;
+  display: none;
+  overflow: hidden;
+  background: #000;
+  color: #fff;
+  cursor: none;
+}
+#nui-saver.nui-on { display: block; animation: nui-saver-in 1.2s ease-out; }
+@keyframes nui-saver-in { from { opacity: 0; } to { opacity: 1; } }
+.nui-saver-bg {
+  position: absolute;
+  inset: -10%;
+  background: center / cover no-repeat;
+  filter: blur(60px) brightness(0.32) saturate(1.3);
+}
+.nui-saver-stage {
+  position: absolute;
+  inset: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 5vw;
+  padding: 8vh 10vw;
+  transition: transform 44s ease-in-out;
+}
+.nui-saver-art {
+  flex: 0 0 auto;
+  width: 34vmin;
+  height: 34vmin;
+  border-radius: 3vmin;
+  overflow: hidden;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: #161616;
+  box-shadow: 0 2vmin 8vmin rgba(0, 0, 0, 0.6);
+}
+.nui-saver-art img { width: 100%; height: 100%; object-fit: cover; }
+.nui-saver-art span { font-size: 16vmin; color: var(--accent); line-height: 1; }
+.nui-saver-text { flex: 0 1 52vw; min-width: 0; display: flex; flex-direction: column; gap: 1.6vmin; }
+.nui-saver-kicker, .nui-saver-sub, .nui-saver-chapter, .nui-saver-left { font-family: var(--nui-sans); letter-spacing: normal; }
+.nui-saver-kicker { color: var(--accent); font-size: 2.6vmin; font-weight: 600; text-transform: uppercase; }
+.nui-saver-title {
+  font-size: 5.4vmin;
+  font-weight: 700;
+  line-height: 1.2;
+  display: -webkit-box;
+  -webkit-line-clamp: 3;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
+.nui-saver-sub { font-size: 3.4vmin; color: #ddd; line-height: 1.3; }
+.nui-saver-chapter { font-size: 3vmin; color: var(--accent); }
+.nui-saver-progress { height: 0.6vmin; border-radius: 1vmin; background: rgba(255, 255, 255, 0.18); overflow: hidden; margin-top: 1vmin; }
+.nui-saver-progress span { display: block; height: 100%; background: var(--accent); transition: width 4s linear; }
+.nui-saver-left { font-size: 2.6vmin; color: #bbb; }
+#nui-saver [hidden] { display: none; }
+.nui-saver-clock {
+  position: absolute;
+  right: 5vw;
+  bottom: 6vh;
+  font-size: 7vmin;
+  font-weight: 200;
+  color: rgba(255, 255, 255, 0.75);
+  font-variant-numeric: tabular-nums;
+  transition: transform 44s ease-in-out;
+}
+/* Ambient: its own picture full screen; the saver only adds the clock and the sound world. */
+html.nui-saver-ambient #tab-ambient { display: block !important; }
+html.nui-saver-ambient #ambient-frame {
+  position: fixed !important;
+  inset: 0;
+  width: 100vw !important;
+  height: 100vh !important;
+  z-index: 2999;
+  border: 0;
+}
+html.nui-saver-ambient #nui-saver { background: transparent; }
+html.nui-saver-ambient .nui-saver-bg,
+html.nui-saver-ambient .nui-saver-art,
+html.nui-saver-ambient .nui-saver-progress,
+html.nui-saver-ambient .nui-saver-left { display: none; }
+html.nui-saver-ambient .nui-saver-stage { align-items: flex-start; justify-content: flex-start; }
+html.nui-saver-ambient .nui-saver-title { font-size: 3.4vmin; font-weight: 300; letter-spacing: 0.1em; }