diff --git a/js/store.js b/js/store.js
new file mode 100644
index 0000000..713fd29
--- /dev/null
+++ b/js/store.js
@@ -0,0 +1,130 @@
+"use strict";
+
+const Store = {
+  KEY: "aumusic-v1",
+  likes: new Set(),
+  playlists: [],
+  history: [],
+  volume: 0.85,
+  shuffle: false,
+  repeat: 0,
+
+  load() {
+    try {
+      const raw = localStorage.getItem(this.KEY);
+      if (!raw) return;
+      const d = JSON.parse(raw);
+      this.likes = new Set(d.likes || []);
+      this.playlists = d.playlists || [];
+      this.history = d.history || [];
+      this.volume = d.volume != null ? d.volume : 0.85;
+      this.shuffle = !!d.shuffle;
+      this.repeat = d.repeat || 0;
+    } catch (e) {}
+  },
+
+  save() {
+    try {
+      localStorage.setItem(this.KEY, JSON.stringify({
+        likes: Array.from(this.likes),
+        playlists: this.playlists,
+        history: this.history,
+        volume: this.volume,
+        shuffle: this.shuffle,
+        repeat: this.repeat
+      }));
+    } catch (e) {}
+  },
+
+  isLiked(id) {
+    return this.likes.has(id);
+  },
+
+  toggleLike(id) {
+    if (this.likes.has(id)) {
+      this.likes.delete(id);
+      return false;
+    }
+    this.likes.add(id);
+    return true;
+  },
+
+  likedSongs() {
+    return Array.from(this.likes).map(D.song);
+  },
+
+  pushHistory(id) {
+    this.history = [id, ...this.history.filter((x) => x !== id)].slice(0, 40);
+    this.save();
+  },
+
+  recentSongs() {
+    const out = [];
+    this.history.forEach((id) => {
+      const s = D.song(id);
+      if (s) out.push(s);
+    });
+    return out;
+  },
+
+  createPlaylist(name, color) {
+    const pl = {
+      id: "pl" + Date.now() + Math.floor(Math.random() * 999),
+      name: name || "New Playlist",
+      color: color || "#fa233b",
+      items: [],
+      createdAt: Date.now()
+    };
+    this.playlists.unshift(pl);
+    this.save();
+    return pl;
+  },
+
+  deletePlaylist(id) {
+    this.playlists = this.playlists.filter((p) => p.id !== id);
+    this.save();
+  },
+
+  renamePlaylist(id, name) {
+    const p = this.playlists.find((x) => x.id === id);
+    if (p) {
+      p.name = name || p.name;
+      this.save();
+    }
+    return p;
+  },
+
+  addToPlaylist(pid, songId) {
+    const p = this.playlists.find((x) => x.id === pid);
+    if (p && !p.items.includes(songId)) {
+      p.items.push(songId);
+      this.save();
+      return true;
+    }
+    return false;
+  },
+
+  removeFromPlaylist(pid, songId) {
+    const p = this.playlists.find((x) => x.id === pid);
+    if (p) {
+      p.items = p.items.filter((i) => i !== songId);
+      this.save();
+    }
+  },
+
+  clearPlaylist(pid) {
+    const p = this.playlists.find((x) => x.id === pid);
+    if (p) {
+      p.items = [];
+      this.save();
+    }
+  },
+
+  playlistSongs(pid) {
+    const p = this.playlists.find((x) => x.id === pid);
+    if (!p) return [];
+    return p.items.map(D.song).filter(Boolean);
+  }
+};
+
+Store.load();