diff --git a/backend/app/routes/plex.py b/backend/app/routes/plex.py
index 7accc91..2bdda81 100644
--- a/backend/app/routes/plex.py
+++ b/backend/app/routes/plex.py
@@ -6,6 +6,7 @@ plex.tv account, and playback is a local file. Admin endpoints test the connecti
 catalog sync.
 """
 import logging
+from datetime import datetime, timezone
 
 from fastapi import APIRouter, Depends, HTTPException, Query, Response
 from fastapi.responses import FileResponse
@@ -294,6 +295,158 @@ def _item_or_404(db: Session, rating_key: str) -> PlexItem:
     return it
 
 
+# Progress thresholds (mirror the YouTube player): ignore the first few seconds, and treat the
+# last stretch as "finished" (mark watched, clear the resume point).
+_PROGRESS_MIN_S = 5
+_FINISH_MARGIN_S = 30
+
+
+def _episode_nav(db: Session, it: PlexItem) -> tuple[str | None, str | None]:
+    if it.kind != "episode" or it.show_id is None:
+        return None, None
+    keys = [
+        r[0]
+        for r in db.query(PlexItem.rating_key)
+        .filter_by(show_id=it.show_id, kind="episode")
+        .order_by(PlexItem.season_number.asc().nullsfirst(), PlexItem.episode_number.asc().nullsfirst())
+        .all()
+    ]
+    try:
+        i = keys.index(it.rating_key)
+    except ValueError:
+        return None, None
+    return (keys[i - 1] if i > 0 else None), (keys[i + 1] if i < len(keys) - 1 else None)
+
+
+@router.get("/item/{rating_key}")
+def item_detail(
+    rating_key: str,
+    user: User = Depends(current_user),
+    db: Session = Depends(get_db),
+) -> dict:
+    """Everything the player needs: metadata, cast, intro/credit markers (from Plex), episode
+    prev/next, and the per-user resume position + watch status."""
+    it = _item_or_404(db, rating_key)
+    st = db.query(PlexState).filter_by(user_id=user.id, item_id=it.id).first()
+
+    cast: list[str] = []
+    markers: list[dict] = []
+    try:
+        with PlexClient(db) as plex:
+            meta = plex.metadata(it.rating_key, markers=True) or {}
+        cast = [r.get("tag") for r in (meta.get("Role") or []) if r.get("tag")][:12]
+        for m in meta.get("Marker") or []:
+            if m.get("type") in ("intro", "credits"):
+                markers.append(
+                    {
+                        "type": m.get("type"),
+                        "start_s": round((m.get("startTimeOffset") or 0) / 1000, 1),
+                        "end_s": round((m.get("endTimeOffset") or 0) / 1000, 1),
+                    }
+                )
+    except (PlexError, PlexNotConfigured):
+        pass  # metadata extras are best-effort; playback works without them
+
+    prev_id, next_id = _episode_nav(db, it)
+    show = db.get(PlexShow, it.show_id) if it.kind == "episode" and it.show_id else None
+    return {
+        "id": it.rating_key,
+        "kind": it.kind,
+        "title": it.title,
+        "summary": it.summary,
+        "year": it.year,
+        "duration_seconds": it.duration_s,
+        "playable": it.playable,
+        "thumb": f"/api/plex/image/{it.rating_key}",
+        "art": f"/api/plex/image/{it.rating_key}?variant=art",
+        "cast": cast,
+        "markers": markers,
+        "status": st.status if st else "new",
+        "position_seconds": st.position_seconds if st else 0,
+        "show_title": show.title if show else None,
+        "season_number": it.season_number,
+        "episode_number": it.episode_number,
+        "prev_id": prev_id,
+        "next_id": next_id,
+    }
+
+
+@router.post("/item/{rating_key}/progress")
+def item_progress(
+    rating_key: str,
+    payload: dict,
+    user: User = Depends(current_user),
+    db: Session = Depends(get_db),
+) -> dict:
+    """Checkpoint the resume position while playing (near the end → mark watched + clear it)."""
+    it = _item_or_404(db, rating_key)
+    try:
+        position = max(0, int(payload.get("position_seconds") or 0))
+        duration = int(payload.get("duration_seconds") or 0)
+    except (TypeError, ValueError):
+        raise HTTPException(status_code=400, detail="position_seconds must be an integer")
+    now = datetime.now(timezone.utc)
+    st = db.query(PlexState).filter_by(user_id=user.id, item_id=it.id).first()
+
+    near_end = duration > 0 and position > duration - _FINISH_MARGIN_S
+    if near_end:
+        if st is None:
+            st = PlexState(user_id=user.id, item_id=it.id)
+            db.add(st)
+        st.status = "watched"
+        st.watched_at = now
+        st.position_seconds = 0
+        st.progress_updated_at = now
+        db.commit()
+        return {"status": "watched", "position_seconds": 0}
+
+    if position < _PROGRESS_MIN_S:
+        if st is not None and st.status == "new":
+            db.delete(st)
+        elif st is not None:
+            st.position_seconds = 0
+            st.progress_updated_at = now
+        db.commit()
+        return {"position_seconds": 0}
+
+    if st is None:
+        st = PlexState(user_id=user.id, item_id=it.id)
+        db.add(st)
+    st.position_seconds = position
+    st.progress_updated_at = now
+    db.commit()
+    return {"position_seconds": position}
+
+
+@router.post("/item/{rating_key}/state")
+def item_state(
+    rating_key: str,
+    payload: dict,
+    user: User = Depends(current_user),
+    db: Session = Depends(get_db),
+) -> dict:
+    """Set the per-user watch status (new|watched|hidden)."""
+    it = _item_or_404(db, rating_key)
+    status = payload.get("status")
+    if status not in ("new", "watched", "hidden"):
+        raise HTTPException(status_code=400, detail="Invalid status")
+    st = db.query(PlexState).filter_by(user_id=user.id, item_id=it.id).first()
+    if status == "new":
+        if st is not None:
+            db.delete(st)
+            db.commit()
+        return {"status": "new"}
+    if st is None:
+        st = PlexState(user_id=user.id, item_id=it.id)
+        db.add(st)
+    st.status = status
+    if status == "watched":
+        st.watched_at = datetime.now(timezone.utc)
+        st.position_seconds = 0
+    db.commit()
+    return {"status": status}
+
+
 @router.post("/stream/{rating_key}/session")
 def stream_session(
     rating_key: str,
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 33392a9..813b685 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -12,6 +12,7 @@
         "@tanstack/react-query": "^5.51.0",
         "@tanstack/react-virtual": "^3.14.3",
         "clsx": "^2.1.1",
+        "hls.js": "^1.6.16",
         "i18next": "^23.11.5",
         "lucide-react": "^0.408.0",
         "react": "^18.3.1",
@@ -1855,6 +1856,12 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/hls.js": {
+      "version": "1.6.16",
+      "resolved": "https://registry.npmjs.org/hls.js/-/hls.js-1.6.16.tgz",
+      "integrity": "sha512-VSIRpLfRwlAAdGL4wiTucx2ScRipo0ed1FBatWkyt832jC4CReKstga6yIhYVwGu9LOBjuX9wzmRMeQdBJtzEA==",
+      "license": "Apache-2.0"
+    },
     "node_modules/html-parse-stringify": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/html-parse-stringify/-/html-parse-stringify-3.0.1.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index a2cfc6a..897d71f 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -14,6 +14,7 @@
     "@tanstack/react-query": "^5.51.0",
     "@tanstack/react-virtual": "^3.14.3",
     "clsx": "^2.1.1",
+    "hls.js": "^1.6.16",
     "i18next": "^23.11.5",
     "lucide-react": "^0.408.0",
     "react": "^18.3.1",
diff --git a/frontend/src/components/PlexBrowse.tsx b/frontend/src/components/PlexBrowse.tsx
index 854bb22..7697f11 100644
--- a/frontend/src/components/PlexBrowse.tsx
+++ b/frontend/src/components/PlexBrowse.tsx
@@ -1,12 +1,16 @@
-import { useEffect, useRef, type CSSProperties } from "react";
+import { lazy, Suspense, useEffect, useRef, type CSSProperties } from "react";
 import { useTranslation } from "react-i18next";
 import { useInfiniteQuery, useQuery } from "@tanstack/react-query";
 import { ArrowLeft } from "lucide-react";
 import { api, type PlexCard } from "../lib/api";
-import { notify } from "../lib/notifications";
 import { useDebounced } from "../lib/useDebounced";
 import { useHistorySubview } from "../lib/history";
 
+// Lazy: the rich player (pulls in hls.js) loads only when something is first played.
+const PlexPlayer = lazy(() => import("./PlexPlayer"));
+
+type Sub = { kind: "grid" } | { kind: "show"; id: string } | { kind: "player"; id: string };
+
 // The Plex module's content area: browse/search the mirrored library as poster cards, drill from a
 // show into seasons/episodes. Library scope / watch-state / sort live in the left PlexSidebar; the
 // search term comes from the shared top Header search box (q). A show drill-down rides history
@@ -27,11 +31,11 @@ function dur(n?: number | null): string {
 export default function PlexBrowse({ q, library, show, sort }: Props) {
   const { t } = useTranslation();
   const dq = useDebounced(q.trim(), 350);
-  const sub = useHistorySubview<string | null>(null); // open show ratingKey (null = grid)
+  const sub = useHistorySubview<Sub>({ kind: "grid" });
 
   const browseQ = useInfiniteQuery({
     queryKey: ["plex-browse", library, dq, sort, show],
-    enabled: !!library && sub.view === null,
+    enabled: !!library && sub.view.kind === "grid",
     initialPageParam: 0,
     queryFn: ({ pageParam }) =>
       api.plexBrowse({ library, q: dq || undefined, sort, show, offset: pageParam as number, limit: PAGE }),
@@ -60,16 +64,26 @@ export default function PlexBrowse({ q, library, show, sort }: Props) {
     return () => io.disconnect();
   }, [hasNextPage, isFetchingNextPage, fetchNextPage]);
 
-  function onPlay(card: PlexCard) {
-    notify({ level: "info", message: t("plex.playerSoon", { title: card.title }) });
-  }
   function onCard(card: PlexCard) {
-    if (card.type === "show") sub.open(card.id);
-    else onPlay(card);
+    if (card.type === "show") sub.open({ kind: "show", id: card.id });
+    else sub.open({ kind: "player", id: card.id });
   }
 
-  if (sub.view) {
-    return <PlexShowView showId={sub.view} onBack={sub.back} onPlay={onPlay} />;
+  if (sub.view.kind === "player") {
+    return (
+      <Suspense fallback={<div className="fixed inset-0 z-50 bg-black" />}>
+        <PlexPlayer itemId={sub.view.id} onClose={sub.back} />
+      </Suspense>
+    );
+  }
+  if (sub.view.kind === "show") {
+    return (
+      <PlexShowView
+        showId={sub.view.id}
+        onBack={sub.back}
+        onPlay={(ep) => sub.open({ kind: "player", id: ep.id })}
+      />
+    );
   }
 
   return (
diff --git a/frontend/src/components/PlexPlayer.tsx b/frontend/src/components/PlexPlayer.tsx
new file mode 100644
index 0000000..f04704c
--- /dev/null
+++ b/frontend/src/components/PlexPlayer.tsx
@@ -0,0 +1,456 @@
+import { useCallback, useEffect, useRef, useState } from "react";
+import { useTranslation } from "react-i18next";
+import { useQuery, useQueryClient } from "@tanstack/react-query";
+import Hls from "hls.js";
+import {
+  ArrowLeft,
+  Maximize,
+  Minimize,
+  Pause,
+  Play,
+  RotateCcw,
+  SkipBack,
+  SkipForward,
+  Volume2,
+  VolumeX,
+} from "lucide-react";
+import { api, type PlexMarker } from "../lib/api";
+
+// The Plex module's rich, full-page player. Plays the LOCAL file: direct-playable files stream raw
+// (native <video>), remux files stream via the seek-restart HLS session (hls.js). The visible
+// timeline is ABSOLUTE (0…duration); the HLS session is relative to its start offset, so we map
+// currentTime = sessionStart + video.currentTime and, on a seek beyond the generated region,
+// restart the session at the target. Watch state / resume persist to plex_states.
+
+type Props = { itemId: string; onClose: () => void };
+
+function fmt(t: number): string {
+  if (!isFinite(t) || t < 0) t = 0;
+  const s = Math.floor(t % 60);
+  const m = Math.floor((t / 60) % 60);
+  const h = Math.floor(t / 3600);
+  const pad = (n: number) => String(n).padStart(2, "0");
+  return h ? `${h}:${pad(m)}:${pad(s)}` : `${m}:${pad(s)}`;
+}
+
+export default function PlexPlayer({ itemId, onClose }: Props) {
+  const { t } = useTranslation();
+  const qc = useQueryClient();
+  const [id, setId] = useState(itemId);
+  const detailQ = useQuery({ queryKey: ["plex-item", id], queryFn: () => api.plexItem(id) });
+  const detail = detailQ.data;
+  const duration = detail?.duration_seconds ?? 0;
+
+  const videoRef = useRef<HTMLVideoElement>(null);
+  const hlsRef = useRef<Hls | null>(null);
+  const wrapRef = useRef<HTMLDivElement>(null);
+  const sessionStartRef = useRef(0); // absolute offset the current HLS/direct session begins at
+  const durationRef = useRef(0);
+
+  const [playing, setPlaying] = useState(false);
+  const [abs, setAbs] = useState(0); // absolute current time
+  const [seekableEnd, setSeekableEnd] = useState(0); // absolute end of the loaded region
+  const [volume, setVolume] = useState(1);
+  const [muted, setMuted] = useState(false);
+  const [fs, setFs] = useState(false);
+  const [ready, setReady] = useState(false);
+  const [uiVisible, setUiVisible] = useState(true);
+  const hideTimer = useRef<number | null>(null);
+
+  durationRef.current = duration;
+
+  // --- media setup: (re)load a session for `id` at a start offset -------------------------------
+  const loadSession = useCallback(
+    async (startAt: number) => {
+      const video = videoRef.current;
+      if (!video) return;
+      setReady(false);
+      let sess;
+      try {
+        sess = await api.plexSession(id, startAt);
+      } catch {
+        return;
+      }
+      sessionStartRef.current = sess.start_s;
+      if (hlsRef.current) {
+        hlsRef.current.destroy();
+        hlsRef.current = null;
+      }
+      if (sess.mode === "hls" && Hls.isSupported()) {
+        const hls = new Hls({ maxBufferLength: 30, enableWorker: true });
+        hlsRef.current = hls;
+        hls.loadSource(`${sess.url}?t=${Math.floor(startAt)}`);
+        hls.attachMedia(video);
+        hls.on(Hls.Events.MANIFEST_PARSED, () => {
+          setReady(true);
+          video.play().catch(() => {});
+        });
+      } else {
+        // direct file (or Safari native HLS)
+        video.src = sess.url;
+        video.load();
+        const onMeta = () => {
+          if (sess.mode === "direct" && startAt > 0) video.currentTime = startAt;
+          setReady(true);
+          video.play().catch(() => {});
+          video.removeEventListener("loadedmetadata", onMeta);
+        };
+        video.addEventListener("loadedmetadata", onMeta);
+      }
+    },
+    [id],
+  );
+
+  // Start playback when the detail arrives (resume from the saved position unless already watched).
+  useEffect(() => {
+    if (!detail) return;
+    const resume = detail.status !== "watched" ? detail.position_seconds || 0 : 0;
+    loadSession(resume);
+    return () => {
+      if (hlsRef.current) {
+        hlsRef.current.destroy();
+        hlsRef.current = null;
+      }
+    };
+  }, [detail, loadSession]);
+
+  // --- time tracking + progress checkpoints ----------------------------------------------------
+  useEffect(() => {
+    const video = videoRef.current;
+    if (!video) return;
+    const onTime = () => {
+      const a = sessionStartRef.current + video.currentTime;
+      setAbs(a);
+      try {
+        const end = video.seekable.length ? sessionStartRef.current + video.seekable.end(0) : a;
+        setSeekableEnd(end);
+      } catch {
+        /* ignore */
+      }
+    };
+    const onPlay = () => setPlaying(true);
+    const onPause = () => setPlaying(false);
+    video.addEventListener("timeupdate", onTime);
+    video.addEventListener("play", onPlay);
+    video.addEventListener("pause", onPause);
+    return () => {
+      video.removeEventListener("timeupdate", onTime);
+      video.removeEventListener("play", onPlay);
+      video.removeEventListener("pause", onPause);
+    };
+  }, [id]);
+
+  // Periodic + on-unmount progress checkpoint.
+  const absRef = useRef(0);
+  absRef.current = abs;
+  useEffect(() => {
+    const flush = () => {
+      if (absRef.current > 0 && durationRef.current > 0)
+        api.plexProgress(id, Math.floor(absRef.current), durationRef.current).catch(() => {});
+    };
+    const iv = window.setInterval(flush, 10000);
+    return () => {
+      window.clearInterval(iv);
+      flush();
+      qc.invalidateQueries({ queryKey: ["plex-browse"] });
+      qc.invalidateQueries({ queryKey: ["plex-show"] });
+    };
+  }, [id, qc]);
+
+  // --- seeking (native within the loaded region, else restart the session) ---------------------
+  const seekTo = useCallback(
+    (target: number) => {
+      const video = videoRef.current;
+      if (!video) return;
+      const dur = durationRef.current || target;
+      const T = Math.max(0, Math.min(target, dur - 1));
+      const rel = T - sessionStartRef.current;
+      if (rel >= 0 && rel <= (video.seekable.length ? video.seekable.end(0) : 0) + 0.5) {
+        video.currentTime = rel;
+      } else {
+        loadSession(T);
+      }
+    },
+    [loadSession],
+  );
+
+  // --- controls --------------------------------------------------------------------------------
+  const togglePlay = useCallback(() => {
+    const v = videoRef.current;
+    if (!v) return;
+    if (v.paused) v.play().catch(() => {});
+    else v.pause();
+  }, []);
+
+  const applyVolume = useCallback((vol: number, mute: boolean) => {
+    const v = videoRef.current;
+    if (!v) return;
+    v.volume = Math.max(0, Math.min(1, vol));
+    v.muted = mute;
+  }, []);
+  const nudgeVolume = useCallback(
+    (d: number) => {
+      setVolume((prev) => {
+        const nv = Math.max(0, Math.min(1, prev + d));
+        applyVolume(nv, false);
+        setMuted(nv === 0);
+        return nv;
+      });
+    },
+    [applyVolume],
+  );
+
+  const toggleFs = useCallback(() => {
+    const el = wrapRef.current;
+    if (!el) return;
+    if (document.fullscreenElement) document.exitFullscreen().catch(() => {});
+    else el.requestFullscreen().catch(() => {});
+  }, []);
+  useEffect(() => {
+    const onFs = () => setFs(!!document.fullscreenElement);
+    document.addEventListener("fullscreenchange", onFs);
+    return () => document.removeEventListener("fullscreenchange", onFs);
+  }, []);
+
+  const go = useCallback(
+    (otherId: string | null | undefined) => {
+      if (otherId) {
+        setAbs(0);
+        setId(otherId);
+      }
+    },
+    [],
+  );
+
+  // Auto-advance to the next episode when one finishes.
+  useEffect(() => {
+    const video = videoRef.current;
+    if (!video) return;
+    const onEnded = () => {
+      api.plexSetState(id, "watched").catch(() => {});
+      if (detail?.next_id) go(detail.next_id);
+    };
+    video.addEventListener("ended", onEnded);
+    return () => video.removeEventListener("ended", onEnded);
+  }, [id, detail, go]);
+
+  // --- keyboard --------------------------------------------------------------------------------
+  useEffect(() => {
+    const onKey = (e: KeyboardEvent) => {
+      const tag = (e.target as HTMLElement)?.tagName;
+      if (tag === "INPUT" || tag === "TEXTAREA") return;
+      switch (e.key) {
+        case " ":
+        case "k":
+          e.preventDefault();
+          togglePlay();
+          break;
+        case "f":
+          toggleFs();
+          break;
+        case "ArrowLeft":
+          e.preventDefault();
+          if (e.shiftKey) go(detail?.prev_id);
+          else seekTo(absRef.current - 10);
+          break;
+        case "ArrowRight":
+          e.preventDefault();
+          if (e.shiftKey) go(detail?.next_id);
+          else seekTo(absRef.current + 10);
+          break;
+        case "ArrowUp":
+          e.preventDefault();
+          nudgeVolume(0.05);
+          break;
+        case "ArrowDown":
+          e.preventDefault();
+          nudgeVolume(-0.05);
+          break;
+        case "m":
+          setMuted((m) => {
+            applyVolume(volume, !m);
+            return !m;
+          });
+          break;
+        case "Escape":
+          if (!document.fullscreenElement) onClose();
+          break;
+      }
+    };
+    window.addEventListener("keydown", onKey);
+    return () => window.removeEventListener("keydown", onKey);
+  }, [togglePlay, toggleFs, seekTo, go, nudgeVolume, applyVolume, volume, detail, onClose]);
+
+  // Auto-hide the controls while playing.
+  const wake = useCallback(() => {
+    setUiVisible(true);
+    if (hideTimer.current) window.clearTimeout(hideTimer.current);
+    hideTimer.current = window.setTimeout(() => {
+      if (!videoRef.current?.paused) setUiVisible(false);
+    }, 3000);
+  }, []);
+
+  const activeMarker: PlexMarker | undefined = detail?.markers.find(
+    (m) => abs >= m.start_s && abs < m.end_s - 1,
+  );
+
+  const pct = duration > 0 ? (abs / duration) * 100 : 0;
+  const bufPct = duration > 0 ? (seekableEnd / duration) * 100 : 0;
+
+  return (
+    <div
+      ref={wrapRef}
+      className="fixed inset-0 z-50 bg-black flex items-center justify-center select-none"
+      onMouseMove={wake}
+      onClick={wake}
+      style={{ cursor: uiVisible ? "default" : "none" }}
+    >
+      <video
+        ref={videoRef}
+        className="max-h-full max-w-full w-auto h-auto"
+        onClick={togglePlay}
+        playsInline
+      />
+
+      {!ready && (
+        <div className="absolute inset-0 grid place-items-center text-white/70 text-sm pointer-events-none">
+          {t("plex.player.loading")}
+        </div>
+      )}
+
+      {/* Top bar */}
+      <div
+        className={`absolute top-0 inset-x-0 p-4 bg-gradient-to-b from-black/70 to-transparent transition-opacity ${
+          uiVisible ? "opacity-100" : "opacity-0"
+        }`}
+      >
+        <div className="flex items-center gap-3 text-white">
+          <button onClick={onClose} className="p-1.5 rounded-lg hover:bg-white/15" title={t("plex.player.back")}>
+            <ArrowLeft className="w-5 h-5" />
+          </button>
+          <div className="min-w-0">
+            <div className="font-semibold truncate">
+              {detail?.kind === "episode" && detail.show_title ? detail.show_title : detail?.title}
+            </div>
+            {detail?.kind === "episode" && (
+              <div className="text-xs text-white/70 truncate">
+                S{detail.season_number}·E{detail.episode_number} — {detail.title}
+              </div>
+            )}
+          </div>
+        </div>
+      </div>
+
+      {/* Skip intro / credits */}
+      {activeMarker && (
+        <button
+          onClick={() => seekTo(activeMarker.end_s)}
+          className={`absolute right-6 bottom-28 px-4 py-2 rounded-lg bg-white/90 text-black text-sm font-medium hover:bg-white transition ${
+            uiVisible ? "opacity-100" : "opacity-80"
+          }`}
+        >
+          {activeMarker.type === "intro" ? t("plex.player.skipIntro") : t("plex.player.skipCredits")}
+        </button>
+      )}
+
+      {/* Bottom controls */}
+      <div
+        className={`absolute bottom-0 inset-x-0 px-4 pb-3 pt-8 bg-gradient-to-t from-black/80 to-transparent transition-opacity ${
+          uiVisible ? "opacity-100" : "opacity-0 pointer-events-none"
+        }`}
+      >
+        {/* Seek bar */}
+        <div
+          className="relative h-1.5 rounded-full bg-white/25 cursor-pointer group mb-2"
+          onClick={(e) => {
+            const r = (e.currentTarget as HTMLElement).getBoundingClientRect();
+            seekTo(((e.clientX - r.left) / r.width) * duration);
+          }}
+        >
+          <div className="absolute inset-y-0 left-0 bg-white/30 rounded-full" style={{ width: `${bufPct}%` }} />
+          {/* intro/credit marker regions */}
+          {detail?.markers.map((m, i) => (
+            <div
+              key={i}
+              className="absolute inset-y-0 bg-amber-400/50"
+              style={{ left: `${(m.start_s / duration) * 100}%`, width: `${((m.end_s - m.start_s) / duration) * 100}%` }}
+            />
+          ))}
+          <div className="absolute inset-y-0 left-0 bg-accent rounded-full" style={{ width: `${pct}%` }} />
+          <div
+            className="absolute top-1/2 -translate-y-1/2 -translate-x-1/2 w-3 h-3 rounded-full bg-accent opacity-0 group-hover:opacity-100"
+            style={{ left: `${pct}%` }}
+          />
+        </div>
+
+        <div className="flex items-center gap-3 text-white">
+          <button onClick={togglePlay} className="p-1 hover:text-accent" title={t("plex.player.playPause")}>
+            {playing ? <Pause className="w-6 h-6" /> : <Play className="w-6 h-6" />}
+          </button>
+          <button onClick={() => seekTo(0)} className="p-1 hover:text-accent" title={t("plex.player.restart")}>
+            <RotateCcw className="w-5 h-5" />
+          </button>
+          {detail?.kind === "episode" && (
+            <>
+              <button
+                onClick={() => go(detail?.prev_id)}
+                disabled={!detail?.prev_id}
+                className="p-1 hover:text-accent disabled:opacity-30"
+                title={t("plex.player.prev")}
+              >
+                <SkipBack className="w-5 h-5" />
+              </button>
+              <button
+                onClick={() => go(detail?.next_id)}
+                disabled={!detail?.next_id}
+                className="p-1 hover:text-accent disabled:opacity-30"
+                title={t("plex.player.next")}
+              >
+                <SkipForward className="w-5 h-5" />
+              </button>
+            </>
+          )}
+
+          <div className="flex items-center gap-1.5 group/vol">
+            <button
+              onClick={() => {
+                setMuted((m) => {
+                  applyVolume(volume, !m);
+                  return !m;
+                });
+              }}
+              className="p-1 hover:text-accent"
+              title={t("plex.player.mute")}
+            >
+              {muted || volume === 0 ? <VolumeX className="w-5 h-5" /> : <Volume2 className="w-5 h-5" />}
+            </button>
+            <input
+              type="range"
+              min={0}
+              max={1}
+              step={0.05}
+              value={muted ? 0 : volume}
+              onChange={(e) => {
+                const nv = Number(e.target.value);
+                setVolume(nv);
+                setMuted(nv === 0);
+                applyVolume(nv, false);
+              }}
+              className="w-20 accent-accent"
+            />
+          </div>
+
+          <div className="text-xs tabular-nums text-white/90">
+            {fmt(abs)} / {fmt(duration)}
+          </div>
+
+          <div className="ml-auto flex items-center gap-2">
+            <button onClick={toggleFs} className="p-1 hover:text-accent" title={t("plex.player.fullscreen")}>
+              {fs ? <Minimize className="w-5 h-5" /> : <Maximize className="w-5 h-5" />}
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
diff --git a/frontend/src/i18n/locales/de/plex.json b/frontend/src/i18n/locales/de/plex.json
index 6fdf507..11b2fb7 100644
--- a/frontend/src/i18n/locales/de/plex.json
+++ b/frontend/src/i18n/locales/de/plex.json
@@ -27,6 +27,18 @@
   "watched": "Angesehen",
   "seasons": "{{count}} Staffeln",
   "playerSoon": "Player kommt bald — „{{title}}“",
+  "player": {
+    "loading": "Wird geladen…",
+    "back": "Zurück",
+    "skipIntro": "Intro überspringen",
+    "skipCredits": "Abspann überspringen",
+    "playPause": "Wiedergabe / Pause (Leertaste)",
+    "restart": "Von vorn beginnen",
+    "prev": "Vorherige Folge",
+    "next": "Nächste Folge",
+    "mute": "Stumm (m)",
+    "fullscreen": "Vollbild (f)"
+  },
   "playable": {
     "direct": "Spielt direkt im Browser",
     "remux": "Braucht ein leichtes Remux (keine Video-Neucodierung)",
diff --git a/frontend/src/i18n/locales/en/plex.json b/frontend/src/i18n/locales/en/plex.json
index 63cac4a..90918b7 100644
--- a/frontend/src/i18n/locales/en/plex.json
+++ b/frontend/src/i18n/locales/en/plex.json
@@ -27,6 +27,18 @@
   "watched": "Watched",
   "seasons": "{{count}} seasons",
   "playerSoon": "Player coming soon — “{{title}}”",
+  "player": {
+    "loading": "Loading…",
+    "back": "Back",
+    "skipIntro": "Skip intro",
+    "skipCredits": "Skip credits",
+    "playPause": "Play / pause (space)",
+    "restart": "Restart from beginning",
+    "prev": "Previous episode",
+    "next": "Next episode",
+    "mute": "Mute (m)",
+    "fullscreen": "Fullscreen (f)"
+  },
   "playable": {
     "direct": "Plays directly in the browser",
     "remux": "Needs a light remux (no video re-encode)",
diff --git a/frontend/src/i18n/locales/hu/plex.json b/frontend/src/i18n/locales/hu/plex.json
index df833d2..aca5083 100644
--- a/frontend/src/i18n/locales/hu/plex.json
+++ b/frontend/src/i18n/locales/hu/plex.json
@@ -27,6 +27,18 @@
   "watched": "Megnézve",
   "seasons": "{{count}} évad",
   "playerSoon": "A lejátszó hamarosan jön — „{{title}}”",
+  "player": {
+    "loading": "Betöltés…",
+    "back": "Vissza",
+    "skipIntro": "Intro átugrása",
+    "skipCredits": "Stáblista átugrása",
+    "playPause": "Lejátszás / szünet (szóköz)",
+    "restart": "Újra az elejéről",
+    "prev": "Előző rész",
+    "next": "Következő rész",
+    "mute": "Némítás (m)",
+    "fullscreen": "Teljes képernyő (f)"
+  },
   "playable": {
     "direct": "Közvetlenül játszható a böngészőben",
     "remux": "Könnyű remux kell (nincs videó-újrakódolás)",
diff --git a/frontend/src/lib/api.ts b/frontend/src/lib/api.ts
index a310c0b..d85937d 100644
--- a/frontend/src/lib/api.ts
+++ b/frontend/src/lib/api.ts
@@ -672,6 +672,37 @@ export interface PlexShowDetail {
   seasons: PlexSeasonDetail[];
 }
 
+export interface PlexMarker {
+  type: "intro" | "credits";
+  start_s: number;
+  end_s: number;
+}
+export interface PlexItemDetail {
+  id: string;
+  kind: "movie" | "episode";
+  title: string;
+  summary?: string | null;
+  year?: number | null;
+  duration_seconds: number | null;
+  playable: string; // direct | remux | transcode
+  thumb: string;
+  art: string;
+  cast: string[];
+  markers: PlexMarker[];
+  status: string;
+  position_seconds: number;
+  show_title?: string | null;
+  season_number?: number | null;
+  episode_number?: number | null;
+  prev_id?: string | null;
+  next_id?: string | null;
+}
+export interface PlexPlaySession {
+  mode: "direct" | "hls";
+  url: string;
+  start_s: number;
+}
+
 // Admin Users & roles page.
 export interface AdminUserRow {
   id: number;
@@ -1006,6 +1037,23 @@ export const api = {
   },
   plexShow: (id: string): Promise<PlexShowDetail> =>
     req(`/api/plex/show/${encodeURIComponent(id)}`),
+  plexItem: (id: string): Promise<PlexItemDetail> =>
+    req(`/api/plex/item/${encodeURIComponent(id)}`),
+  plexSession: (id: string, start = 0): Promise<PlexPlaySession> =>
+    req(`/api/plex/stream/${encodeURIComponent(id)}/session?start=${Math.max(0, Math.floor(start))}`, {
+      method: "POST",
+    }),
+  plexProgress: (id: string, position_seconds: number, duration_seconds: number): Promise<unknown> =>
+    req(`/api/plex/item/${encodeURIComponent(id)}/progress`, {
+      method: "POST",
+      body: JSON.stringify({ position_seconds, duration_seconds }),
+    }),
+  plexSetState: (id: string, status: "new" | "watched" | "hidden"): Promise<unknown> =>
+    req(`/api/plex/item/${encodeURIComponent(id)}/state`, {
+      method: "POST",
+      body: JSON.stringify({ status }),
+    }),
+  plexStreamFileUrl: (id: string): string => `/api/plex/stream/${encodeURIComponent(id)}/file`,
   plexImageUrl: (id: string, variant?: "thumb" | "art"): string =>
     `/api/plex/image/${encodeURIComponent(id)}${variant === "art" ? "?variant=art" : ""}`,
   // --- admin: users & roles ---