feat: add country selection, cron automation, sparkle effects and layout fixes

.vscode/agents/git-auto-commit.md

@@ -0,0 +1,226 @@
+# Git Auto Commit Agent
+
+You are working inside this VS Code workspace.
+
+Your task is to inspect the current Git changes, generate a clear commit message, stage the safe changed files, and create a local Git commit.
+
+## Goal
+
+Create one clean Git commit that accurately describes the current workspace changes.
+
+## Important Rules
+
+* Do not push.
+* Do not run `git push`.
+* Do not create tags.
+* Do not rewrite history.
+* Do not run `git reset --hard`.
+* Do not run destructive cleanup commands.
+* Do not modify source files unless absolutely necessary.
+* Do not bypass Git hooks.
+* Do not commit secrets or private files.
+* Do not commit files that are clearly generated, temporary, cached, or environment-specific unless they are already intentionally tracked by the project.
+
+## Files That Must Not Be Committed
+
+Before staging, carefully check for sensitive or unsafe files.
+
+Never commit files like:
+
+```text
+.env
+.env.*
+*.key
+*.pem
+*.p12
+*.pfx
+*.crt
+*.sql
+*.sqlite
+*.db
+id_rsa
+id_ed25519
+npm-debug.log
+yarn-error.log
+storage/logs/*
+storage/framework/cache/*
+storage/framework/sessions/*
+storage/framework/views/*
+node_modules/*
+vendor/*
+.DS_Store
+Thumbs.db
+```
+
+If such files appear in the changes, do not stage them. Report them clearly.
+
+## Git Checks To Run
+
+First inspect the repository state:
+
+```bash
+git branch --show-current
+git status --short
+git diff --stat
+git diff
+```
+
+Also check staged changes if needed:
+
+```bash
+git diff --cached --stat
+git diff --cached
+```
+
+## Commit Message Style
+
+Use Conventional Commits format:
+
+```text
+type: short summary
+```
+
+Allowed types:
+
+```text
+feat
+fix
+refactor
+chore
+docs
+style
+test
+build
+perf
+ci
+```
+
+Choose the most accurate type.
+
+## Commit Message Examples
+
+```text
+feat: add managed stations JSON endpoint
+fix: route managed stations JSON request to PHP endpoint
+chore: update Apache vhost rewrite config
+refactor: simplify station API routing
+docs: add deployment notes
+build: update frontend build config
+```
+
+## How To Choose Commit Type
+
+Use:
+
+* `feat` for a new feature or visible capability
+* `fix` for a bug fix
+* `refactor` for code restructuring without behavior change
+* `chore` for maintenance, config, cleanup, or small project updates
+* `docs` for documentation-only changes
+* `style` for formatting-only changes
+* `test` for test changes
+* `build` for build system, dependencies, Vite, npm, Composer, Docker, or CI-related changes
+* `perf` for performance improvements
+* `ci` for GitHub Actions, GitLab CI, or deployment pipeline changes
+
+## Summary Before Commit
+
+Before committing, show a short summary with:
+
+```text
+Branch:
+Changed files:
+Main changes:
+Proposed commit message:
+Skipped files:
+```
+
+## Staging Rules
+
+Stage all safe changes using:
+
+```bash
+git add -A
+```
+
+If unsafe files are detected, stage only safe files individually.
+
+Example:
+
+```bash
+git add path/to/safe-file.php path/to/another-safe-file.js
+```
+
+Do not stage unsafe files.
+
+## Commit Command
+
+Create the commit using the generated message.
+
+For a simple commit:
+
+```bash
+git commit -m "type: short summary"
+```
+
+For a commit that needs more detail:
+
+```bash
+git commit -m "type: short summary" -m "Additional explanation of the important changes."
+```
+
+## Commit Body Rules
+
+Use a commit body only when helpful.
+
+The body should explain:
+
+* what changed
+* why it changed
+* any important technical notes
+
+Keep it short and useful.
+
+## If There Are No Changes
+
+If the working tree is clean, say:
+
+```text
+No changes to commit.
+```
+
+Do not create an empty commit.
+
+## If Commit Fails
+
+If the commit fails:
+
+1. Show the error.
+2. Explain what probably caused it.
+3. Do not bypass hooks.
+4. Do not force the commit.
+5. Stop and wait for the user.
+
+## Final Response
+
+After creating the commit, respond with:
+
+```text
+Commit created.
+
+Branch: <branch-name>
+Commit: <commit-hash>
+Message: <commit-message>
+```
+
+Also mention any skipped files if there were any.
+
+## Absolute Prohibition
+
+Never run:
+
+```bash
+git push
+```
+
+Only create the local commit.

README.md

@@ -1,21 +1,24 @@
 # RadioPlayer
 
-RadioPlayer is a Vite + React web app for browsing, playing, and casting radio stations. It loads its bundled managed catalog from `public/stations.json`, exposes that catalog through a same-origin backend endpoint at `/api/managed-stations.json`, supports custom stations, and includes a built-in updater for refreshing the managed list from the live Radio.si feed.
+RadioPlayer is a Vite + React web app for browsing, playing, and casting radio stations.
+It uses a managed catalog from `public/stations.json`, exposes a same-origin managed endpoint at `/api/managed-stations.json`, supports user stations with local persistence, and includes scripts to refresh station data from Radio.si.
 
 ## Features
 
-- Station browser with search, categories, favourites, and recent stations
+- Station library with search, category tabs, favorites, recents, sorting, and pagination.
-- Audio playback with previous/next station controls
+- Country filtering plus a country picker to choose which Radio Browser countries are synced and shown.
-- Cast support
+- Audio playback with previous/next controls, volume/mute, and coverflow quick picks.
-- Production service worker for app-shell caching, offline launch support, and faster repeat visits
+- Google Cast and AirPlay output support.
-- App install prompt for supported browsers
+- User station management with local import/export/reset tooling.
-- Custom station editor
+- Managed catalog fallback chain: remote endpoint -> cached remote -> bundled `stations.json`.
-- Live station metadata and artwork rendering
+- Production service worker with app shell caching, station sync cache, and periodic refresh registration.
+- PWA install prompt and offline-friendly launch behavior.
 
 ## Requirements
 
-- Node.js 18 or newer
+- Node.js 18+
 - npm
+- For production managed endpoint: PHP-enabled web server with rewrite support (Apache + `.htaccess` in this repo)
 
 ## Getting Started
 
@@ -25,7 +28,7 @@ Install dependencies:
 npm install
 ```
 
-Start the development server:
+Run development server:
 
 ```bash
 npm run dev
@@ -37,35 +40,32 @@ Build for production:
 npm run build
 ```
 
-Preview the production build:
+Preview production build locally:
 
 ```bash
 npm run preview
 ```
 
-Run the production build with the bundled same-origin backend endpoint:
+Deploy built assets with the included script:
-
-```bash
-npm run serve:backend
-```
-
-Deploy the built frontend plus backend server files to the remote host:
 
 ```bash
 bash sync.sh
 ```
 
-## Station Data
+## Managed Catalog Endpoint
 
-The app keeps the editorial managed list in `public/stations.json`.
+Runtime managed endpoint path:
-
-At runtime, the frontend prefers the same-origin managed endpoint:
 
 ```text
 /api/managed-stations.json
 ```
 
-That endpoint returns:
+In production this is served by:
+
+- `public/.htaccess` rewrite rule
+- `public/api/managed-stations.php`
+
+Response shape:
 
 ```json
 {
@@ -75,55 +75,107 @@ That endpoint returns:
 }
 ```
 
-If the backend endpoint is unavailable, the frontend and service worker fall back to the bundled `stations.json` file.
+In dev/preview, Vite middleware in `vite.config.js` serves the same envelope from `stations.json`.
 
-To refresh the file from the remote source, run:
+If the endpoint is unavailable, frontend and service worker fall back to bundled `public/stations.json`.
+
+## Station Data Refresh
+
+Refresh managed stations from Radio.si:
 
 ```bash
 npm run update:stations
 ```
 
-That command fetches the latest station list from:
+Refresh and rebuild in one command:
 
-```text
+```bash
-https://data.radio.si/api/radiostations?857df78efd094abcb98c7bbb53303c3d
+npm run update:stations:build
 ```
 
-and rewrites `public/stations.json` while preserving the existing JSON structure used by the app. The backend endpoint reads from that file and wraps it in the runtime envelope shown above.
+Custom source and output:
-
-You can also pass a custom source URL or a custom output path if needed:
 
 ```bash
 node scripts/update-stations.mjs <source-url> <output-path>
 ```
 
+## Cron Automation (Server)
+
+Helper script:
+
+```bash
+bash scripts/cron-refresh-stations.sh
+```
+
+Update-only helper script:
+
+```bash
+bash scripts/cron-update-stations.sh
+```
+
+The script:
+
+- acquires a lock file to prevent overlapping runs,
+- runs station refresh and build,
+- optionally runs `DEPLOY_CMD`,
+- writes logs to `/tmp/radioplayer-refresh-stations.log` by default,
+- rotates logs automatically when they exceed 1 MB, keeping 5 archives by default.
+
+The update-only script:
+
+- acquires its own lock file,
+- runs only `npm run update:stations`,
+- optionally runs `POST_UPDATE_CMD`,
+- writes logs to `/tmp/radioplayer-update-stations.log`,
+- uses the same log rotation behavior.
+
+Example crontab (every 6 hours):
+
+```cron
+0 */6 * * * REPO_DIR=/opt/www/virtual/RadioPlayer DEPLOY_CMD='rsync -av --delete /opt/www/virtual/RadioPlayer/dist/ /opt/www/virtual/RadioPlayer/' /opt/www/virtual/RadioPlayer/scripts/cron-refresh-stations.sh
+```
+
+Example update-only crontab (every 2 hours):
+
+```cron
+0 */2 * * * REPO_DIR=/opt/www/virtual/RadioPlayer /opt/www/virtual/RadioPlayer/scripts/cron-update-stations.sh
+```
+
 ## Project Structure
 
 ```text
 index.html
+privacy.html
 package.json
 public/
+  .htaccess
+  api/
+    managed-stations.php
+  data/
+    radio-stations.json
+    radio-stations-sync.json
   manifest.json
   stations.json
   sw.js
-server/
+scripts/
-  index.mjs
+  bump-sw-cache-version.mjs
-  managedCatalogData.mjs
+  cron-refresh-stations.sh
+  cron-update-stations.sh
+  import-radio-stations.ts
+  update-stations.mjs
 src/
   App.jsx
   main.jsx
   player.js
   styles.css
-scripts/
+  radio/
-  update-stations.mjs
+  storage/
 ```
 
 ## Notes
 
-- The app uses a module-based frontend build, so `src/main.jsx` is the browser entry point.
+- Service worker is only active in production builds. In dev, SW registrations and caches are cleared automatically.
-- The service worker is registered only in production builds. During development, existing service workers and caches are cleared automatically to avoid stale assets while iterating.
+- `src/main.jsx` registers background sync / periodic sync where supported.
-- The updater script uses the remote feed as the source of truth for the station list and writes the merged result into `public/stations.json`.
+- `src/player.js` also refreshes managed catalog on app focus after a timeout (fallback for browsers without periodic sync).
-- Vite dev and preview both expose `/api/managed-stations.json` on the same origin via middleware, and `npm run serve:backend` serves the built app plus the same endpoint from Node.
+- `sync.sh` deploys `dist/` only.
-- `sync.sh` now deploys both the built frontend files and the `server/` runtime so the same-origin backend can be started remotely with `node /opt/www/virtual/RadioPlayer/server/index.mjs`.
+- If you edit stations manually, rerun `npm run update:stations` to resync from upstream when needed.
-- If you add or edit stations manually, re-run `npm run update:stations` when you want to sync back to the remote catalog.
-- Static-only deployments still work because the frontend falls back to bundled `stations.json`, but a true same-origin backend endpoint requires deploying a server that answers `/api/managed-stations.json`.

package.json

@@ -10,6 +10,7 @@
     "preview": "vite preview",
     "serve:backend": "node server/index.mjs",
     "update:stations": "node scripts/update-stations.mjs",
+    "update:stations:build": "npm run update:stations && npm run build",
     "radio:import": "tsx scripts/import-radio-stations.ts",
     "typecheck": "tsc --noEmit"
   },

public/sw.js

@@ -3,7 +3,7 @@
 //
 // This value is rewritten automatically before each build so deployed clients
 // refresh to the newest shell and cached assets.
-const CACHE_NAME = 'radioplayer-pwa-v5-1777463324180';
+const CACHE_NAME = 'radioplayer-pwa-v5-1777473175316';
 const STATION_SYNC_CACHE_NAME = 'radioplayer-station-sync-v1';
 const MANAGED_CATALOG_CACHE_NAME = 'radioplayer-managed-catalog-v1';
 const RADIO_BROWSER_API_ENDPOINT = 'https://de1.api.radio-browser.info/json/stations/search';
@@ -60,6 +60,8 @@ const RADIO_COUNTRIES = [
   { name: 'Turkey', code: 'TR' },
   { name: 'Ukraine', code: 'UA' },
 ];
+const DEFAULT_SYNC_COUNTRY_CODES = RADIO_COUNTRIES.map((country) => country.code);
+const MANAGED_COUNTRY_CODE = 'SI';
 const MAX_TAGS = 12;
 const OBVIOUSLY_UNSUPPORTED_CODECS = new Set([
   'wma',
@@ -96,6 +98,7 @@ const IMAGE_FALLBACK_PATH = new URL('images/radio-placeholder.svg', self.registr
 const SYNC_CATALOG_URL = new URL('data/radio-stations-sync.json', self.registration.scope).href;
 const SYNC_CATALOG_PATH = new URL('data/radio-stations-sync.json', self.registration.scope).pathname;
 const SYNC_META_URL = new URL('data/radio-stations-sync-meta.json', self.registration.scope).href;
+const SYNC_SETTINGS_URL = new URL('data/radio-stations-sync-settings.json', self.registration.scope).href;
 const SYNC_COUNTRY_PREFIX_PATH = new URL('data/countries/', self.registration.scope).pathname;
 const BUNDLED_MANAGED_CATALOG_URL = new URL('stations.json', self.registration.scope).href;
 const MANAGED_CATALOG_PATH = new URL('api/managed-stations.json', self.registration.scope).pathname;
@@ -190,6 +193,54 @@ async function writeJsonToCache(cache, requestUrl, payload) {
   }));
 }
 
+function sanitizeSelectedCountryCodes(countryCodes) {
+  const uniqueCodes = Array.isArray(countryCodes)
+    ? Array.from(new Set(
+        countryCodes
+          .map((entry) => (typeof entry === 'string' ? entry.trim().toUpperCase() : ''))
+          .filter((entry) => /^[A-Z]{2}$/.test(entry)),
+      ))
+    : [];
+
+  if (!uniqueCodes.includes(MANAGED_COUNTRY_CODE)) {
+    uniqueCodes.unshift(MANAGED_COUNTRY_CODE);
+  }
+
+  return uniqueCodes.length > 0 ? uniqueCodes : [...DEFAULT_SYNC_COUNTRY_CODES];
+}
+
+async function readSyncSettings(cache) {
+  const cached = await cache.match(SYNC_SETTINGS_URL);
+  if (!cached) {
+    return { selectedCountryCodes: [...DEFAULT_SYNC_COUNTRY_CODES] };
+  }
+
+  try {
+    const payload = await cached.json();
+    return {
+      selectedCountryCodes: sanitizeSelectedCountryCodes(payload?.selectedCountryCodes),
+    };
+  } catch {
+    return { selectedCountryCodes: [...DEFAULT_SYNC_COUNTRY_CODES] };
+  }
+}
+
+async function writeSyncSettings(cache, countryCodes) {
+  const payload = {
+    selectedCountryCodes: sanitizeSelectedCountryCodes(countryCodes),
+    updatedAt: new Date().toISOString(),
+  };
+  await writeJsonToCache(cache, SYNC_SETTINGS_URL, payload);
+  return payload;
+}
+
+function getSyncCountries(selectedCountryCodes) {
+  return sanitizeSelectedCountryCodes(selectedCountryCodes).map((code) => {
+    const existing = RADIO_COUNTRIES.find((country) => country.code === code);
+    return existing || { name: code, code };
+  });
+}
+
 async function fetchCountryStations(country) {
   const url = new URL(RADIO_BROWSER_API_ENDPOINT);
   url.search = new URLSearchParams({
@@ -223,15 +274,19 @@ async function fetchCountryStations(country) {
     .filter(Boolean);
 }
 
-async function syncRadioStations(reason = 'sync') {
+async function syncRadioStations(reason = 'sync', selectedCountryCodesOverride = null) {
   const syncCache = await caches.open(STATION_SYNC_CACHE_NAME);
+  const syncSettings = selectedCountryCodesOverride
+    ? { selectedCountryCodes: sanitizeSelectedCountryCodes(selectedCountryCodesOverride) }
+    : await readSyncSettings(syncCache);
+  const syncCountries = getSyncCountries(syncSettings.selectedCountryCodes);
   const aggregatedStations = [];
   const seenStationIds = new Set();
   const seenStreamUrls = new Set();
   const failedCountries = [];
   let syncedCountries = 0;
 
-  for (const country of RADIO_COUNTRIES) {
+  for (const country of syncCountries) {
     try {
       const stations = await fetchCountryStations(country);
       await writeJsonToCache(syncCache, getCountryCatalogUrl(country.code), stations);
@@ -263,6 +318,7 @@ async function syncRadioStations(reason = 'sync') {
     reason,
     syncedAt: new Date().toISOString(),
     countryCount: syncedCountries,
+    selectedCountryCodes: syncSettings.selectedCountryCodes,
     failedCountries,
     stationCount: aggregatedStations.length,
   };
@@ -477,6 +533,31 @@ self.addEventListener('sync', (event) => {
   event.waitUntil(syncRadioStations('background-sync'));
 });
 
+self.addEventListener('message', (event) => {
+  if (event.data?.type !== 'set-sync-countries') return;
+
+  event.waitUntil((async () => {
+    try {
+      const syncCache = await caches.open(STATION_SYNC_CACHE_NAME);
+      const syncSettings = await writeSyncSettings(syncCache, event.data?.countryCodes);
+      const syncResult = event.data?.syncNow
+        ? await syncRadioStations('country-selection-update', syncSettings.selectedCountryCodes)
+        : null;
+
+      event.ports?.[0]?.postMessage({
+        ok: true,
+        selectedCountryCodes: syncSettings.selectedCountryCodes,
+        syncResult,
+      });
+    } catch (error) {
+      event.ports?.[0]?.postMessage({
+        ok: false,
+        error: error instanceof Error ? error.message : 'Unknown error',
+      });
+    }
+  })());
+});
+
 self.addEventListener('periodicsync', (event) => {
   if (event.tag === STATION_PERIODIC_SYNC_TAG) {
     event.waitUntil(syncRadioStations('periodic-sync'));

scripts/cron-refresh-stations.sh

@@ -0,0 +1,66 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Cron helper for refreshing station catalog and rebuilding assets.
+# Optional env vars:
+# - REPO_DIR: repository root (defaults to script parent)
+# - LOCK_FILE: lock path (defaults to /tmp/radioplayer-refresh-stations.lock)
+# - LOG_FILE: log path (defaults to /tmp/radioplayer-refresh-stations.log)
+# - LOG_MAX_BYTES: rotate log when it grows beyond this size (default 1048576)
+# - LOG_KEEP_COUNT: number of rotated logs to keep (default 5)
+# - DEPLOY_CMD: optional shell command executed after successful build
+
+REPO_DIR="${REPO_DIR:-$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)}"
+LOCK_FILE="${LOCK_FILE:-/tmp/radioplayer-refresh-stations.lock}"
+LOG_FILE="${LOG_FILE:-/tmp/radioplayer-refresh-stations.log}"
+LOG_MAX_BYTES="${LOG_MAX_BYTES:-1048576}"
+LOG_KEEP_COUNT="${LOG_KEEP_COUNT:-5}"
+
+rotate_log_if_needed() {
+  if [[ ! -f "$LOG_FILE" ]]; then
+    return
+  fi
+
+  local size
+  size=$(wc -c < "$LOG_FILE")
+  if [[ "$size" -lt "$LOG_MAX_BYTES" ]]; then
+    return
+  fi
+
+  local i
+  for ((i=LOG_KEEP_COUNT; i>=1; i--)); do
+    if [[ -f "$LOG_FILE.$i" ]]; then
+      if [[ "$i" -ge "$LOG_KEEP_COUNT" ]]; then
+        rm -f "$LOG_FILE.$i"
+      else
+        mv "$LOG_FILE.$i" "$LOG_FILE.$((i + 1))"
+      fi
+    fi
+  done
+
+  mv "$LOG_FILE" "$LOG_FILE.1"
+}
+
+mkdir -p "$(dirname "$LOCK_FILE")" "$(dirname "$LOG_FILE")"
+rotate_log_if_needed
+
+exec 9>"$LOCK_FILE"
+if ! flock -n 9; then
+  echo "[$(date -Is)] refresh skipped: another run is active" >> "$LOG_FILE"
+  exit 0
+fi
+
+{
+  echo "[$(date -Is)] refresh start"
+  cd "$REPO_DIR"
+  npm ci --silent
+  npm run update:stations
+  npm run build
+
+  if [[ -n "${DEPLOY_CMD:-}" ]]; then
+    echo "[$(date -Is)] running deploy command"
+    bash -lc "$DEPLOY_CMD"
+  fi
+
+  echo "[$(date -Is)] refresh complete"
+} >> "$LOG_FILE" 2>&1

scripts/cron-update-stations.sh

@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Cron helper for refreshing only the managed station catalog.
+# Optional env vars:
+# - REPO_DIR: repository root (defaults to script parent)
+# - LOCK_FILE: lock path (defaults to /tmp/radioplayer-update-stations.lock)
+# - LOG_FILE: log path (defaults to /tmp/radioplayer-update-stations.log)
+# - LOG_MAX_BYTES: rotate log when it grows beyond this size (default 1048576)
+# - LOG_KEEP_COUNT: number of rotated logs to keep (default 5)
+# - POST_UPDATE_CMD: optional shell command executed after successful station update
+
+REPO_DIR="${REPO_DIR:-$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)}"
+LOCK_FILE="${LOCK_FILE:-/tmp/radioplayer-update-stations.lock}"
+LOG_FILE="${LOG_FILE:-/tmp/radioplayer-update-stations.log}"
+LOG_MAX_BYTES="${LOG_MAX_BYTES:-1048576}"
+LOG_KEEP_COUNT="${LOG_KEEP_COUNT:-5}"
+
+rotate_log_if_needed() {
+  if [[ ! -f "$LOG_FILE" ]]; then
+    return
+  fi
+
+  local size
+  size=$(wc -c < "$LOG_FILE")
+  if [[ "$size" -lt "$LOG_MAX_BYTES" ]]; then
+    return
+  fi
+
+  local i
+  for ((i=LOG_KEEP_COUNT; i>=1; i--)); do
+    if [[ -f "$LOG_FILE.$i" ]]; then
+      if [[ "$i" -ge "$LOG_KEEP_COUNT" ]]; then
+        rm -f "$LOG_FILE.$i"
+      else
+        mv "$LOG_FILE.$i" "$LOG_FILE.$((i + 1))"
+      fi
+    fi
+  done
+
+  mv "$LOG_FILE" "$LOG_FILE.1"
+}
+
+mkdir -p "$(dirname "$LOCK_FILE")" "$(dirname "$LOG_FILE")"
+rotate_log_if_needed
+
+exec 9>"$LOCK_FILE"
+if ! flock -n 9; then
+  echo "[$(date -Is)] update skipped: another run is active" >> "$LOG_FILE"
+  exit 0
+fi
+
+{
+  echo "[$(date -Is)] update start"
+  cd "$REPO_DIR"
+  npm ci --silent
+  npm run update:stations
+
+  if [[ -n "${POST_UPDATE_CMD:-}" ]]; then
+    echo "[$(date -Is)] running post-update command"
+    bash -lc "$POST_UPDATE_CMD"
+  fi
+
+  echo "[$(date -Is)] update complete"
+} >> "$LOG_FILE" 2>&1

src/App.jsx

@@ -385,6 +385,42 @@ function EditorOverlay() {
   );
 }
 
+function CountrySelectionOverlay() {
+  return (
+    <div id="country-selection-overlay" className="overlay hidden" aria-hidden="true">
+      <div className="modal country-selection-modal" role="dialog" aria-modal="true" aria-labelledby="countrySelectionTitle">
+        <h2 id="countrySelectionTitle">Select Countries</h2>
+        <p id="country-selection-note" className="editor-note" aria-live="polite">
+          These choices control which Radio Browser countries are synced and shown. Managed Slovenia stays available.
+        </p>
+        <div className="country-selection-toolbar">
+          <label className="library-search country-selection-search" htmlFor="country-selection-search-input">
+            <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2"
+              strokeLinecap="round" strokeLinejoin="round" aria-hidden="true">
+              <circle cx="11" cy="11" r="8" />
+              <path d="m21 21-4.3-4.3" />
+            </svg>
+            <input id="country-selection-search-input" type="search" placeholder="Search countries" autoComplete="off" />
+          </label>
+          <div className="country-selection-actions">
+            <button id="country-selection-defaults-btn" className="btn secondary" type="button">Restore Defaults</button>
+            <button id="country-selection-all-btn" className="btn secondary" type="button">Select All</button>
+          </div>
+        </div>
+        <p id="country-selection-summary" className="editor-note editor-note-subtle" aria-live="polite">
+          Loading countries...
+        </p>
+        <p id="country-selection-empty" className="library-empty hidden">No countries found.</p>
+        <ul id="country-selection-list" className="device-list country-selection-list" />
+        <div className="editor-actions country-selection-footer">
+          <button id="country-selection-save-btn" className="btn cancel" type="button">Save</button>
+          <button id="country-selection-cancel-btn" className="btn secondary" type="button">Cancel</button>
+        </div>
+      </div>
+    </div>
+  );
+}
+
 function StationLibrary() {
   return (
     <aside id="station-library" className="station-library" aria-label="Station library">
@@ -534,6 +570,7 @@ export default function App() {
           <LegalLinks />
           <StationsOverlay />
           <EditorOverlay />
+          <CountrySelectionOverlay />
         </main>
         <InstallPromptBanner />
       </div>

src/player.js

@@ -1,10 +1,11 @@
 import { loadRadioStations } from './radio/loadRadioStations.ts';
-import { radioCountries } from './radio/radioCountries.ts';
+import { defaultSelectedRadioCountryCodes, managedCountryCode, radioCountries } from './radio/radioCountries.ts';
 import { getLastManagedCatalogSource, loadManagedStations } from './radio/loadManagedStations.ts';
 import {
   clearPlayerPersistence,
   deletePersistedUserStationById,
   getPersistenceBackend,
+  getPersistedSelectedRadioCountryCodes,
   getPlayerPersistenceSnapshot,
   getPersistedCastBothMode,
   getPersistedFavoriteStationIds,
@@ -23,6 +24,7 @@ import {
   persistLastImportedAt,
   persistLastStationCountry,
   persistLastStationId,
+  persistSelectedRadioCountryCodes,
   persistRecentStationHistory,
   persistStationHealth,
   persistStationUsageCounts,
@@ -58,6 +60,17 @@ let stationLibraryQuery = '';
 let stationLibraryCategory = 'all';
 let stationLibraryCountry = 'all';
 let stationLibrarySort = 'recommended';
+let selectedRadioCountryCodes = new Set(defaultSelectedRadioCountryCodes);
+let draftSelectedRadioCountryCodes = new Set(defaultSelectedRadioCountryCodes);
+let availableRadioCountries = radioCountries.map((country) => ({
+  ...country,
+  stationCount: null,
+  pinned: country.code === managedCountryCode,
+}));
+let availableRadioCountriesLoaded = false;
+let availableRadioCountriesRequest = null;
+let countrySelectionQuery = '';
+let countrySelectionSaving = false;
 let stationLibraryPage = 0;
 let stationLibraryPageTotal = 1;
 let stationCatalogState = 'idle';
@@ -123,6 +136,15 @@ const stationCountryFilterBtn = document.getElementById('station-country-filter-
 const stationCountryFilterMenu = document.getElementById('station-country-filter-menu');
 const stationCountryFilterText = document.getElementById('station-country-filter-text');
 const stationCountryFilterFlag = document.getElementById('station-country-filter-flag');
+const countrySelectionOverlay = document.getElementById('country-selection-overlay');
+const countrySelectionSearchInput = document.getElementById('country-selection-search-input');
+const countrySelectionSummaryEl = document.getElementById('country-selection-summary');
+const countrySelectionEmptyEl = document.getElementById('country-selection-empty');
+const countrySelectionListEl = document.getElementById('country-selection-list');
+const countrySelectionDefaultsBtn = document.getElementById('country-selection-defaults-btn');
+const countrySelectionAllBtn = document.getElementById('country-selection-all-btn');
+const countrySelectionSaveBtn = document.getElementById('country-selection-save-btn');
+const countrySelectionCancelBtn = document.getElementById('country-selection-cancel-btn');
 const stationSortSelect = document.getElementById('station-sort-select');
 const stationSortBtn = document.getElementById('station-sort-btn');
 const stationSortText = document.getElementById('station-sort-text');
@@ -138,6 +160,7 @@ const installPromptBannerEl = document.getElementById('install-prompt-banner');
 const installPromptActionBtn = document.getElementById('install-prompt-action');
 const installPromptDismissBtn = document.getElementById('install-prompt-dismiss');
 
+const radioCountryByCode = new Map(radioCountries.map((country) => [country.code, country]));
 const radioCountryCodeByName = new Map(radioCountries.map((country) => [country.name, country.code]));
 const radioCountryNameByCode = new Map(radioCountries.map((country) => [country.code, country.name]));
 
@@ -175,6 +198,8 @@ const castOutputText = document.getElementById('cast-output-text');
 const IMPORT_EXPORT_SCHEMA = 'radioplayer-local-data';
 const IMPORT_EXPORT_VERSION = 1;
 const PLAYBACK_START_TIMEOUT_MS = 12000;
+const RADIO_BROWSER_COUNTRIES_API_ENDPOINT = 'https://de1.api.radio-browser.info/json/countries';
+const SERVICE_WORKER_SYNC_COUNTRIES_MESSAGE = 'set-sync-countries';
 
 // ── Utilities ────────────────────────────────────────────────────────────────
 
@@ -1091,6 +1116,324 @@ function restoreLastStationCountry() {
   stationLibraryCountry = savedCountry || 'all';
 }
 
+function normalizeSelectedRadioCountryCodes(codes) {
+  const normalized = Array.isArray(codes) ? codes : Array.from(codes || []);
+  const uniqueCodes = Array.from(new Set(
+    normalized
+      .map((entry) => (typeof entry === 'string' ? entry.trim().toUpperCase() : ''))
+      .filter((entry) => /^[A-Z]{2}$/.test(entry)),
+  ));
+
+  if (!uniqueCodes.includes(managedCountryCode)) {
+    uniqueCodes.unshift(managedCountryCode);
+  }
+
+  return uniqueCodes.length > 0 ? uniqueCodes : [...defaultSelectedRadioCountryCodes];
+}
+
+function getSelectedRadioCountryCodes() {
+  return normalizeSelectedRadioCountryCodes(selectedRadioCountryCodes);
+}
+
+function restoreSelectedRadioCountryCodes() {
+  selectedRadioCountryCodes = new Set(normalizeSelectedRadioCountryCodes(getPersistedSelectedRadioCountryCodes()));
+  draftSelectedRadioCountryCodes = new Set(getSelectedRadioCountryCodes());
+}
+
+function getAvailableRadioCountryNameByCode(countryCode) {
+  const code = String(countryCode || '').trim().toUpperCase();
+  if (!code) return '';
+  return availableRadioCountries.find((country) => country.code === code)?.name
+    || radioCountryNameByCode.get(code)
+    || radioCountryByCode.get(code)?.name
+    || code;
+}
+
+function mergeAvailableRadioCountries(countries) {
+  const mergedCountries = new Map();
+
+  radioCountries.forEach((country) => {
+    mergedCountries.set(country.code, {
+      name: country.name,
+      code: country.code,
+      stationCount: null,
+      pinned: country.code === managedCountryCode,
+    });
+  });
+
+  countries.forEach((country) => {
+    const code = String(country?.code || '').trim().toUpperCase();
+    if (!/^[A-Z]{2}$/.test(code)) return;
+
+    const existing = mergedCountries.get(code);
+    mergedCountries.set(code, {
+      name: String(country?.name || existing?.name || code).trim() || code,
+      code,
+      stationCount: Number.isFinite(country?.stationCount) && Number(country.stationCount) >= 0
+        ? Number(country.stationCount)
+        : existing?.stationCount ?? null,
+      pinned: code === managedCountryCode,
+    });
+  });
+
+  availableRadioCountries = Array.from(mergedCountries.values()).sort((left, right) => {
+    if (left.code === managedCountryCode) return -1;
+    if (right.code === managedCountryCode) return 1;
+    return left.name.localeCompare(right.name, undefined, { sensitivity: 'base' });
+  });
+}
+
+async function ensureAvailableRadioCountriesLoaded() {
+  if (availableRadioCountriesLoaded) {
+    return availableRadioCountries;
+  }
+
+  if (availableRadioCountriesRequest) {
+    return availableRadioCountriesRequest;
+  }
+
+  availableRadioCountriesRequest = (async () => {
+    try {
+      const response = await fetch(RADIO_BROWSER_COUNTRIES_API_ENDPOINT, {
+        cache: 'no-store',
+        headers: {
+          accept: 'application/json',
+        },
+        mode: 'cors',
+      });
+
+      if (!response.ok) {
+        throw new Error(`Failed loading countries: ${response.status}`);
+      }
+
+      const payload = await response.json();
+      if (!Array.isArray(payload)) {
+        throw new Error('Invalid country list response');
+      }
+
+      const remoteCountries = payload
+        .map((entry) => ({
+          code: String(entry?.iso_3166_1 || '').trim().toUpperCase(),
+          name: String(entry?.name || '').trim(),
+          stationCount: Number(entry?.stationcount),
+        }))
+        .filter((entry) => /^[A-Z]{2}$/.test(entry.code) && entry.name.length > 0);
+
+      mergeAvailableRadioCountries(remoteCountries);
+    } catch (error) {
+      console.debug('Falling back to bundled country list', error);
+      mergeAvailableRadioCountries([]);
+    } finally {
+      availableRadioCountriesLoaded = true;
+      availableRadioCountriesRequest = null;
+    }
+
+    return availableRadioCountries;
+  })();
+
+  return availableRadioCountriesRequest;
+}
+
+function renderCountrySelectionOverlay() {
+  if (!countrySelectionListEl || !countrySelectionSummaryEl || !countrySelectionEmptyEl) return;
+
+  if (countrySelectionSaveBtn) {
+    countrySelectionSaveBtn.disabled = countrySelectionSaving;
+    countrySelectionSaveBtn.textContent = countrySelectionSaving ? 'Saving...' : 'Save';
+  }
+  if (countrySelectionDefaultsBtn) countrySelectionDefaultsBtn.disabled = countrySelectionSaving;
+  if (countrySelectionAllBtn) countrySelectionAllBtn.disabled = countrySelectionSaving;
+  if (countrySelectionCancelBtn) countrySelectionCancelBtn.disabled = countrySelectionSaving;
+
+  const normalizedQuery = countrySelectionQuery.trim().toLowerCase();
+  const entries = availableRadioCountries.filter((country) => {
+    if (!normalizedQuery) return true;
+    return country.name.toLowerCase().includes(normalizedQuery) || country.code.toLowerCase().includes(normalizedQuery);
+  });
+
+  const selectedCount = normalizeSelectedRadioCountryCodes(draftSelectedRadioCountryCodes).length;
+  const loadingLabel = availableRadioCountriesLoaded ? '' : ' Loading available countries...';
+  countrySelectionSummaryEl.textContent = countrySelectionSaving
+    ? 'Saving country selection...'
+    : `${selectedCount} countries enabled.${loadingLabel}`;
+
+  countrySelectionEmptyEl.classList.toggle('hidden', entries.length > 0);
+  countrySelectionListEl.innerHTML = '';
+
+  if (entries.length === 0) {
+    return;
+  }
+
+  entries.forEach((country) => {
+    const item = document.createElement('li');
+    item.className = 'device country-selection-item';
+
+    const row = document.createElement('label');
+    row.className = 'country-selection-option';
+
+    const checkbox = document.createElement('input');
+    checkbox.type = 'checkbox';
+    checkbox.checked = country.code === managedCountryCode || draftSelectedRadioCountryCodes.has(country.code);
+    checkbox.disabled = country.code === managedCountryCode || countrySelectionSaving;
+
+    checkbox.addEventListener('change', () => {
+      if (checkbox.checked) {
+        draftSelectedRadioCountryCodes.add(country.code);
+      } else {
+        draftSelectedRadioCountryCodes.delete(country.code);
+      }
+      renderCountrySelectionOverlay();
+    });
+
+    const flag = document.createElement('span');
+    flag.className = 'country-selection-flag';
+    flag.setAttribute('aria-hidden', 'true');
+
+    const flagUrl = countryCodeToFlagUrl(country.code);
+    if (flagUrl) {
+      const flagImg = document.createElement('img');
+      flagImg.src = flagUrl;
+      flagImg.alt = '';
+      flagImg.className = 'country-selection-flag-img';
+      flagImg.loading = 'lazy';
+      flagImg.referrerPolicy = 'no-referrer';
+      flagImg.addEventListener('error', () => {
+        flagImg.remove();
+        flag.textContent = country.code === managedCountryCode ? '🇸🇮' : countryCodeToFlagEmoji(country.code);
+      }, { once: true });
+      flag.appendChild(flagImg);
+    } else {
+      flag.textContent = country.code === managedCountryCode ? '🇸🇮' : countryCodeToFlagEmoji(country.code);
+    }
+
+    const copy = document.createElement('div');
+    copy.className = 'country-selection-copy';
+
+    const title = document.createElement('div');
+    title.className = 'device-main';
+    title.textContent = country.code === managedCountryCode ? `${country.name} (managed)` : country.name;
+
+    const sub = document.createElement('div');
+    sub.className = 'device-sub';
+    if (country.code === managedCountryCode) {
+      sub.textContent = 'Always enabled managed catalog';
+    } else if (Number.isFinite(country.stationCount) && country.stationCount > 0) {
+      sub.textContent = `${country.code} • ${country.stationCount.toLocaleString()} stations available`;
+    } else {
+      sub.textContent = country.code;
+    }
+
+    copy.appendChild(title);
+    copy.appendChild(sub);
+    row.appendChild(checkbox);
+    row.appendChild(flag);
+    row.appendChild(copy);
+    item.appendChild(row);
+    countrySelectionListEl.appendChild(item);
+  });
+}
+
+async function openCountrySelectionOverlay() {
+  if (!countrySelectionOverlay) return;
+
+  draftSelectedRadioCountryCodes = new Set(getSelectedRadioCountryCodes());
+  countrySelectionQuery = '';
+  countrySelectionSaving = false;
+  if (countrySelectionSearchInput) {
+    countrySelectionSearchInput.value = '';
+  }
+
+  renderCountrySelectionOverlay();
+  countrySelectionOverlay.classList.remove('hidden');
+  countrySelectionOverlay.setAttribute('aria-hidden', 'false');
+  closeStationCountryFilter();
+
+  void ensureAvailableRadioCountriesLoaded().then(() => {
+    renderCountrySelectionOverlay();
+  });
+
+  window.setTimeout(() => countrySelectionSearchInput?.focus(), 30);
+}
+
+function closeCountrySelectionOverlay() {
+  if (!countrySelectionOverlay) return;
+  countrySelectionOverlay.classList.add('hidden');
+  countrySelectionOverlay.setAttribute('aria-hidden', 'true');
+  countrySelectionSaving = false;
+}
+
+function getNormalizedStationCountryCode(station) {
+  const directCode = typeof station?.countryCode === 'string' ? station.countryCode.trim().toUpperCase() : '';
+  if (/^[A-Z]{2}$/.test(directCode)) return directCode;
+
+  const countryValue = typeof station?.country === 'string' ? station.country.trim() : '';
+  if (/^[A-Z]{2}$/.test(countryValue)) return countryValue.toUpperCase();
+
+  return '';
+}
+
+function isEnabledRadioCountryStation(station) {
+  const countryCode = getNormalizedStationCountryCode(station);
+  if (!countryCode) return true;
+  return getSelectedRadioCountryCodes().includes(countryCode);
+}
+
+async function sendSelectedCountriesToServiceWorker({ syncNow = false } = {}) {
+  if (!('serviceWorker' in navigator)) {
+    return { ok: false, skipped: true };
+  }
+
+  const registration = await navigator.serviceWorker.ready.catch(() => null);
+  const target = navigator.serviceWorker.controller || registration?.active || registration?.waiting;
+  if (!target) {
+    return { ok: false, skipped: true };
+  }
+
+  return new Promise((resolve) => {
+    const channel = new MessageChannel();
+    const timeoutId = window.setTimeout(() => {
+      resolve({ ok: false, timedOut: true });
+    }, syncNow ? 25000 : 8000);
+
+    channel.port1.onmessage = (event) => {
+      clearTimeout(timeoutId);
+      resolve(event.data || { ok: true });
+    };
+
+    target.postMessage({
+      type: SERVICE_WORKER_SYNC_COUNTRIES_MESSAGE,
+      countryCodes: getSelectedRadioCountryCodes(),
+      syncNow,
+    }, [channel.port2]);
+  });
+}
+
+async function saveCountrySelection() {
+  if (countrySelectionSaving) return;
+
+  countrySelectionSaving = true;
+  renderCountrySelectionOverlay();
+
+  try {
+    selectedRadioCountryCodes = new Set(normalizeSelectedRadioCountryCodes(draftSelectedRadioCountryCodes));
+    persistSelectedRadioCountryCodes(selectedRadioCountryCodes);
+    await sendSelectedCountriesToServiceWorker({ syncNow: true });
+    await loadStations();
+    if (statusTextEl) {
+      statusTextEl.textContent = 'Country selection updated';
+    }
+    closeCountrySelectionOverlay();
+  } catch (error) {
+    console.error('Saving country selection failed', error);
+    if (statusTextEl) {
+      statusTextEl.textContent = 'Unable to refresh selected countries';
+    }
+  } finally {
+    countrySelectionSaving = false;
+    renderCountrySelectionOverlay();
+  }
+}
+
 // ── castBothMode persistence & UI ────────────────────────────────────────────
 
 function saveCastBothMode(val) {
@@ -1563,7 +1906,7 @@ function getStationTechnicalLabel(station) {
 }
 
 function getStationDetails(station) {
-  return [getStationCountry(station), getStationTechnicalLabel(station)].filter(Boolean).join(' • ');
+  return [getCountryDisplayName(getStationCountry(station)), getStationTechnicalLabel(station)].filter(Boolean).join(' • ');
 }
 
 function getStationSearchText(station) {
@@ -1637,7 +1980,7 @@ function getCountryDisplayName(countryValue) {
   if (value === 'all') return 'All countries';
   if (value === 'SI') return 'Slovenia (managed)';
   if (/^[A-Z]{2}$/i.test(value)) {
-    const countryName = radioCountryNameByCode.get(value.toUpperCase());
+    const countryName = getAvailableRadioCountryNameByCode(value.toUpperCase());
     if (countryName) return countryName;
   }
   return value;
@@ -1649,7 +1992,7 @@ function getCountryFilterDisplayName(countryValue) {
   if (value === 'all') return 'All countries';
   if (value.toUpperCase() === 'SI') return 'SLOVENIA (managed)';
   if (/^[A-Z]{2}$/i.test(value)) {
-    const countryName = radioCountryNameByCode.get(value.toUpperCase());
+    const countryName = getAvailableRadioCountryNameByCode(value.toUpperCase());
     if (countryName) return countryName;
   }
   return value;
@@ -1659,7 +2002,9 @@ function getCountryCodeFromValue(countryValue) {
   const value = String(countryValue || '').trim();
   if (!value || value === 'all') return '';
   if (/^[A-Z]{2}$/i.test(value)) return value.toUpperCase();
-  return radioCountryCodeByName.get(value) || '';
+  return radioCountryCodeByName.get(value)
+    || availableRadioCountries.find((country) => country.name === value)?.code
+    || '';
 }
 
 function resetStationLibraryPage() {
@@ -1839,6 +2184,15 @@ function renderCountryFilterOptions() {
     });
 
   orderedCountries.forEach((country) => addOption(getCountryFilterDisplayName(country), country));
+
+  const manageButton = document.createElement('button');
+  manageButton.type = 'button';
+  manageButton.className = 'library-select-manage-btn';
+  manageButton.textContent = 'Choose countries...';
+  manageButton.addEventListener('click', () => {
+    void openCountrySelectionOverlay();
+  });
+  stationCountryFilterMenu.appendChild(manageButton);
 }
 
 function getFilteredStationEntries() {
@@ -2262,6 +2616,7 @@ async function loadStations() {
     const managedRaw = await loadManagedStations().catch(() => []);
 
     const normalizedRaw = raw
+      .filter((station) => isEnabledRadioCountryStation(station))
       .map((s) => normalizeStationRecord(s))
       .filter((s) => s.enabled !== false && s.url && s.url.length > 0);
 
@@ -3293,6 +3648,26 @@ function setupEventListeners() {
   installAppBtn?.addEventListener('click', promptInstallApp);
   castBtn?.addEventListener('click', requestCastSession);
   editorCloseBtn?.addEventListener('click', closeEditorOverlay);
+  countrySelectionCancelBtn?.addEventListener('click', closeCountrySelectionOverlay);
+  countrySelectionOverlay?.addEventListener('click', (e) => {
+    if (e.target === countrySelectionOverlay) closeCountrySelectionOverlay();
+  });
+  countrySelectionSearchInput?.addEventListener('input', () => {
+    countrySelectionQuery = countrySelectionSearchInput.value || '';
+    renderCountrySelectionOverlay();
+  });
+  countrySelectionDefaultsBtn?.addEventListener('click', () => {
+    draftSelectedRadioCountryCodes = new Set(defaultSelectedRadioCountryCodes);
+    renderCountrySelectionOverlay();
+  });
+  countrySelectionAllBtn?.addEventListener('click', async () => {
+    await ensureAvailableRadioCountriesLoaded();
+    draftSelectedRadioCountryCodes = new Set(availableRadioCountries.map((country) => country.code));
+    renderCountrySelectionOverlay();
+  });
+  countrySelectionSaveBtn?.addEventListener('click', () => {
+    void saveCountrySelection();
+  });
   exportUserDataBtn?.addEventListener('click', handleExportUserData);
   importUserDataBtn?.addEventListener('click', () => importUserDataInput?.click());
   importUserDataInput?.addEventListener('change', () => {
@@ -3358,6 +3733,11 @@ function setupEventListeners() {
       closeSortFilter();
       return;
     }
+    if (countrySelectionOverlay && !countrySelectionOverlay.classList.contains('hidden') && e.code === 'Escape') {
+      e.preventDefault();
+      closeCountrySelectionOverlay();
+      return;
+    }
     if (e.code === 'Space') { e.preventDefault(); togglePlay(); }
     else if (e.code === 'ArrowRight') playNext();
     else if (e.code === 'ArrowLeft') playPrev();
@@ -3412,8 +3792,10 @@ async function init() {
     restoreSavedVolume();
     restoreCastBothMode();
     restoreLastStationCountry();
+    restoreSelectedRadioCountryCodes();
     await loadStations();
     setupEventListeners();
+    void sendSelectedCountriesToServiceWorker();
     lockPortraitOrientation();
     ensureArtworkPointerFallback();
     scheduleArtworkShine();

src/radio/radioCountries.ts

@@ -44,4 +44,7 @@ export const radioCountries = [
   { name: 'Ukraine', code: 'UA' },
 ] as const;
 
+export const managedCountryCode = 'SI';
+export const defaultSelectedRadioCountryCodes = radioCountries.map((country) => country.code);
+
 export type RadioCountry = (typeof radioCountries)[number];

src/storage/playerPersistence.ts

@@ -1,4 +1,5 @@
 import { openDB, type DBSchema, type IDBPDatabase } from 'idb';
+import { defaultSelectedRadioCountryCodes, managedCountryCode } from '../radio/radioCountries.js';
 
 export type PersistedStationHealth = {
   attempts: number;
@@ -22,6 +23,7 @@ type PersistedSettings = {
   volume: number | null;
   lastStationId: string | null;
   lastStationCountry: string | null;
+  selectedRadioCountryCodes: string[];
   castBothMode: boolean;
   favoriteStationIds: string[];
   stationUsageCounts: Record<string, number>;
@@ -41,6 +43,7 @@ type SettingRecordMap = {
   volume: number | null;
   lastStationId: string | null;
   lastStationCountry: string | null;
+  selectedRadioCountryCodes: string[];
   castBothMode: boolean;
   favoriteStationIds: string[];
   stationUsageCounts: Record<string, number>;
@@ -80,6 +83,7 @@ const DEFAULT_SNAPSHOT: PersistedSnapshot = {
   volume: null,
   lastStationId: null,
   lastStationCountry: null,
+  selectedRadioCountryCodes: [...defaultSelectedRadioCountryCodes],
   castBothMode: false,
   favoriteStationIds: [],
   stationUsageCounts: {},
@@ -94,6 +98,7 @@ const LOCAL_STORAGE_KEYS = {
   volume: 'volume',
   lastStationId: 'lastStationId',
   lastStationCountry: 'lastStationCountry',
+  selectedRadioCountryCodes: 'selectedRadioCountryCodes',
   castBothMode: 'castBothMode',
   favoriteStationIds: 'favoriteStationIds',
   stationUsageCounts: 'stationUsageCounts',
@@ -142,6 +147,21 @@ function safeJsonParse<T>(value: string | null, fallback: T): T {
   }
 }
 
+function sanitizeSelectedRadioCountryCodes(value: unknown): string[] {
+  const codes = Array.isArray(value)
+    ? value
+        .map((entry) => (typeof entry === 'string' ? entry.trim().toUpperCase() : ''))
+        .filter((entry) => /^[A-Z]{2}$/.test(entry))
+    : [];
+
+  const uniqueCodes = Array.from(new Set(codes));
+  if (!uniqueCodes.includes(managedCountryCode)) {
+    uniqueCodes.unshift(managedCountryCode);
+  }
+
+  return uniqueCodes.length > 0 ? uniqueCodes : [...defaultSelectedRadioCountryCodes];
+}
+
 function sanitizeIsoDate(value: unknown): string | null {
   if (typeof value !== 'string') return null;
   const trimmed = value.trim();
@@ -258,6 +278,9 @@ function mirrorSettingToLocalStorage<K extends SettingKey>(key: K, value: Settin
     case 'lastStationCountry':
       writeLocalStorageValue(LOCAL_STORAGE_KEYS.lastStationCountry, typeof value === 'string' ? value : null);
       break;
+    case 'selectedRadioCountryCodes':
+      writeLocalStorageValue(LOCAL_STORAGE_KEYS.selectedRadioCountryCodes, JSON.stringify(sanitizeSelectedRadioCountryCodes(value)));
+      break;
     case 'castBothMode':
       writeLocalStorageValue(LOCAL_STORAGE_KEYS.castBothMode, value ? '1' : '0');
       break;
@@ -303,6 +326,7 @@ function sanitizeImportedSnapshot(source: unknown): PersistedSnapshot {
   const lastStationCountry = typeof input.lastStationCountry === 'string' && input.lastStationCountry.trim().length > 0
     ? input.lastStationCountry
     : null;
+  const selectedRadioCountryCodes = sanitizeSelectedRadioCountryCodes(input.selectedRadioCountryCodes);
   const castBothMode = input.castBothMode === true;
   const lastExportedAt = typeof input.lastExportedAt === 'string' && input.lastExportedAt.trim().length > 0
     ? input.lastExportedAt
@@ -339,6 +363,7 @@ function sanitizeImportedSnapshot(source: unknown): PersistedSnapshot {
     volume,
     lastStationId,
     lastStationCountry,
+    selectedRadioCountryCodes,
     castBothMode,
     favoriteStationIds,
     stationUsageCounts,
@@ -366,6 +391,7 @@ function readLegacyLocalStorage(): PersistedSnapshot {
     volume,
     lastStationId: storage?.getItem('lastStationId') ?? null,
     lastStationCountry: storage?.getItem('lastStationCountry') ?? null,
+    selectedRadioCountryCodes: sanitizeSelectedRadioCountryCodes(safeJsonParse<string[]>(storage?.getItem('selectedRadioCountryCodes') ?? null, defaultSelectedRadioCountryCodes)),
     castBothMode: storage?.getItem('castBothMode') === '1',
     favoriteStationIds: safeJsonParse<string[]>(storage?.getItem('favoriteStationIds') ?? null, []).filter(Boolean),
     stationUsageCounts: safeJsonParse<Record<string, number>>(storage?.getItem('stationUsageCounts') ?? null, {}),
@@ -392,6 +418,7 @@ async function migrateFromLocalStorageIfNeeded(db: IDBPDatabase<RadioPlayerDb>)
     tx.objectStore('settings').put(legacy.volume, 'volume'),
     tx.objectStore('settings').put(legacy.lastStationId, 'lastStationId'),
     tx.objectStore('settings').put(legacy.lastStationCountry, 'lastStationCountry'),
+    tx.objectStore('settings').put(legacy.selectedRadioCountryCodes, 'selectedRadioCountryCodes'),
     tx.objectStore('settings').put(legacy.castBothMode, 'castBothMode'),
     tx.objectStore('settings').put(legacy.favoriteStationIds, 'favoriteStationIds'),
     tx.objectStore('settings').put(legacy.stationUsageCounts, 'stationUsageCounts'),
@@ -429,6 +456,7 @@ export async function hydratePlayerPersistence() {
   const volume = await settingsStore.get('volume') as SettingRecordMap['volume'] | undefined;
   const lastStationId = await settingsStore.get('lastStationId') as SettingRecordMap['lastStationId'] | undefined;
   const lastStationCountry = await settingsStore.get('lastStationCountry') as SettingRecordMap['lastStationCountry'] | undefined;
+  const selectedRadioCountryCodes = await settingsStore.get('selectedRadioCountryCodes') as SettingRecordMap['selectedRadioCountryCodes'] | undefined;
   const castBothMode = await settingsStore.get('castBothMode') as SettingRecordMap['castBothMode'] | undefined;
   const favoriteStationIds = await settingsStore.get('favoriteStationIds') as SettingRecordMap['favoriteStationIds'] | undefined;
   const stationUsageCounts = await settingsStore.get('stationUsageCounts') as SettingRecordMap['stationUsageCounts'] | undefined;
@@ -444,6 +472,7 @@ export async function hydratePlayerPersistence() {
     volume: typeof volume === 'number' ? volume : null,
     lastStationId: typeof lastStationId === 'string' ? lastStationId : null,
     lastStationCountry: typeof lastStationCountry === 'string' ? lastStationCountry : null,
+    selectedRadioCountryCodes: sanitizeSelectedRadioCountryCodes(selectedRadioCountryCodes),
     castBothMode: castBothMode === true,
     favoriteStationIds: Array.isArray(favoriteStationIds) ? favoriteStationIds.filter(Boolean) : [],
     stationUsageCounts: stationUsageCounts && typeof stationUsageCounts === 'object' && !Array.isArray(stationUsageCounts)
@@ -466,6 +495,7 @@ export function getPlayerPersistenceSnapshot(): PersistedSnapshot {
       volume: DEFAULT_SNAPSHOT.volume,
       lastStationId: DEFAULT_SNAPSHOT.lastStationId,
       lastStationCountry: DEFAULT_SNAPSHOT.lastStationCountry,
+      selectedRadioCountryCodes: [...DEFAULT_SNAPSHOT.selectedRadioCountryCodes],
       castBothMode: DEFAULT_SNAPSHOT.castBothMode,
       favoriteStationIds: [...DEFAULT_SNAPSHOT.favoriteStationIds],
       stationUsageCounts: { ...DEFAULT_SNAPSHOT.stationUsageCounts },
@@ -481,6 +511,7 @@ export function getPlayerPersistenceSnapshot(): PersistedSnapshot {
     volume: snapshot.volume,
     lastStationId: snapshot.lastStationId,
     lastStationCountry: snapshot.lastStationCountry,
+    selectedRadioCountryCodes: [...snapshot.selectedRadioCountryCodes],
     castBothMode: snapshot.castBothMode,
     favoriteStationIds: [...snapshot.favoriteStationIds],
     stationUsageCounts: { ...snapshot.stationUsageCounts },
@@ -508,6 +539,10 @@ export function getPersistedLastStationCountry() {
   return snapshot.lastStationCountry;
 }
 
+export function getPersistedSelectedRadioCountryCodes() {
+  return [...snapshot.selectedRadioCountryCodes];
+}
+
 export function getPersistedCastBothMode() {
   return snapshot.castBothMode;
 }
@@ -560,6 +595,11 @@ export function persistLastStationCountry(value: string | null) {
   void writeSetting('lastStationCountry', value);
 }
 
+export function persistSelectedRadioCountryCodes(value: Iterable<string>) {
+  snapshot.selectedRadioCountryCodes = sanitizeSelectedRadioCountryCodes(Array.from(value));
+  void writeSetting('selectedRadioCountryCodes', snapshot.selectedRadioCountryCodes);
+}
+
 export function persistCastBothMode(value: boolean) {
   snapshot.castBothMode = value;
   void writeSetting('castBothMode', value);
@@ -700,6 +740,7 @@ export async function importPlayerPersistence(source: unknown) {
   mirrorSettingToLocalStorage('volume', snapshot.volume);
   mirrorSettingToLocalStorage('lastStationId', snapshot.lastStationId);
   mirrorSettingToLocalStorage('lastStationCountry', snapshot.lastStationCountry);
+  mirrorSettingToLocalStorage('selectedRadioCountryCodes', snapshot.selectedRadioCountryCodes);
   mirrorSettingToLocalStorage('castBothMode', snapshot.castBothMode);
   mirrorSettingToLocalStorage('favoriteStationIds', snapshot.favoriteStationIds);
   mirrorSettingToLocalStorage('stationUsageCounts', snapshot.stationUsageCounts);
@@ -722,6 +763,7 @@ export async function importPlayerPersistence(source: unknown) {
       tx.objectStore('settings').put(snapshot.volume, 'volume'),
       tx.objectStore('settings').put(snapshot.lastStationId, 'lastStationId'),
       tx.objectStore('settings').put(snapshot.lastStationCountry, 'lastStationCountry'),
+      tx.objectStore('settings').put(snapshot.selectedRadioCountryCodes, 'selectedRadioCountryCodes'),
       tx.objectStore('settings').put(snapshot.castBothMode, 'castBothMode'),
       tx.objectStore('settings').put(snapshot.favoriteStationIds, 'favoriteStationIds'),
       tx.objectStore('settings').put(snapshot.stationUsageCounts, 'stationUsageCounts'),

src/styles.css

@@ -361,6 +361,28 @@ input:focus-visible,
     gap: 6px;
 }
 
+.library-select-manage-btn {
+    width: 100%;
+    min-height: 38px;
+    margin-top: 4px;
+    padding: 0 12px;
+    border: 1px dashed rgba(var(--accent-rgb), 0.24);
+    border-radius: 12px;
+    background: rgba(var(--accent-rgb), 0.08);
+    color: var(--text-main);
+    font: inherit;
+    font-size: 0.84rem;
+    font-weight: 800;
+    text-align: left;
+    transition: background 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
+}
+
+.library-select-manage-btn:hover {
+    border-color: rgba(var(--accent-rgb), 0.4);
+    background: rgba(var(--accent-rgb), 0.14);
+    transform: translateY(-1px);
+}
+
 .library-select-option {
     width: 100%;
     min-width: 0;
@@ -886,7 +908,9 @@ input:focus-visible,
     overflow: hidden;
     flex: 1 1 0;
     min-width: 0;
-    height: 100%;
+    align-self: flex-start;
+    margin-bottom: 12px;
+    height: calc(100% - 12px);
     min-height: 0;
     display: grid;
     grid-template-columns: minmax(300px, 0.92fr) minmax(340px, 1.08fr);
@@ -2047,6 +2071,92 @@ input[type=range]::-webkit-slider-thumb {
     accent-color: var(--accent);
 }
 
+.country-selection-modal {
+    width: min(780px, 100%);
+}
+
+.country-selection-toolbar {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr) auto;
+    gap: 12px;
+    align-items: center;
+    margin-bottom: 12px;
+}
+
+.country-selection-search {
+    margin: 0;
+}
+
+.country-selection-actions {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 8px;
+}
+
+.country-selection-actions .btn {
+    min-width: 148px;
+}
+
+.country-selection-list {
+    max-height: min(48vh, 420px);
+    padding-right: 4px;
+}
+
+.country-selection-item {
+    margin-bottom: 8px;
+    padding: 0;
+    overflow: hidden;
+}
+
+.country-selection-option {
+    display: grid;
+    grid-template-columns: 18px 1.4rem minmax(0, 1fr);
+    gap: 12px;
+    align-items: start;
+    padding: 13px 14px;
+    cursor: pointer;
+}
+
+.country-selection-option input {
+    width: 18px;
+    height: 18px;
+    margin: 3px 0 0;
+    accent-color: var(--accent);
+}
+
+.country-selection-option input:disabled {
+    cursor: not-allowed;
+}
+
+.country-selection-flag {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    width: 1.4rem;
+    height: 1rem;
+    margin-top: 3px;
+    font-size: 1rem;
+    line-height: 1;
+    flex: 0 0 auto;
+}
+
+.country-selection-flag-img {
+    display: block;
+    width: 1.4rem;
+    height: 1rem;
+    object-fit: cover;
+    border-radius: 2px;
+}
+
+.country-selection-copy {
+    min-width: 0;
+}
+
+.country-selection-footer {
+    justify-content: flex-end;
+    margin-top: 8px;
+}
+
 .field-row {
     margin-bottom: 10px;
 }
@@ -2645,6 +2755,19 @@ input[type=range]::-webkit-slider-thumb {
         flex-direction: column;
     }
 
+    .country-selection-toolbar {
+        grid-template-columns: 1fr;
+    }
+
+    .country-selection-actions {
+        width: 100%;
+    }
+
+    .country-selection-actions .btn {
+        flex: 1;
+        min-width: 0;
+    }
+
     .editor-station-actions,
     .editor-actions {
         width: 100%;