Add streaks, today view, custom plan editing/chapter ranges, and ntfy reminders

Reading plans now track a cross-plan activity log for streaks, surface a
combined "today's reading" view on both Home and the Reading Plans page,
and let custom plans be edited after creation (including narrowing a book
to a specific chapter range). The reader auto-marks a plan's day read after
a dwell period, active plans that fall behind their pace get a "catch me
up" banner, and a new Settings section wires up daily reading reminders
via ntfy.sh, checked once a minute by a small server-side scheduler.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

public/plan-covers/README.txt

@@ -0,0 +1,18 @@
+Drop a cover photo here for each built-in reading plan, named exactly:
+
+  bible-year.jpg      Whole Bible in a Year
+  bible-90.jpg        Whole Bible in 90 Days
+  nt-90.jpg           New Testament in 90 Days
+  nt-30.jpg           New Testament in 30 Days
+  gospels-30.jpg      The Gospels in 30 Days
+  psalms-30.jpg       Psalms in 30 Days
+  proverbs-31.jpg     Proverbs in 31 Days
+  pentateuch-60.jpg   The Pentateuch in 60 Days
+  wisdom-40.jpg       Wisdom Literature in 40 Days
+
+Landscape orientation, ~1200px wide, works best (cards crop to a 16:9 box).
+Any plan without a matching file just shows its colorful gradient + icon —
+nothing breaks if some are missing.
+
+See src/utils/readingPlans.js -> PIXABAY_SEARCH_LINKS for a Pixabay search
+link per plan to help pick one.

server/db.js

@@ -63,6 +63,17 @@ export function initDb() {
     db.exec('ALTER TABLE users ADD COLUMN podcast_name TEXT');
   }
 
+  // Older databases predate ntfy.sh daily reading reminders.
+  if (!userCols.some((c) => c.name === 'ntfy_url')) {
+    db.exec(`
+      ALTER TABLE users ADD COLUMN ntfy_url TEXT;
+      ALTER TABLE users ADD COLUMN ntfy_topic TEXT;
+      ALTER TABLE users ADD COLUMN reminder_time TEXT;
+      ALTER TABLE users ADD COLUMN reminder_enabled INTEGER NOT NULL DEFAULT 0;
+      ALTER TABLE users ADD COLUMN last_reminder_date TEXT;
+    `);
+  }
+
   // Older databases predate shareable read-only links.
   if (!projectCols.some((c) => c.name === 'share_token')) {
     db.exec('ALTER TABLE projects ADD COLUMN share_token TEXT');
@@ -81,6 +92,16 @@ export function initDb() {
     );
   `);
 
+  // Reading plan progress — one row per user, holding the whole list of
+  // in-progress/completed plans as JSON (small; no need to normalize).
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS reading_progress (
+      user_id    TEXT PRIMARY KEY REFERENCES users(id) ON DELETE CASCADE,
+      data       TEXT NOT NULL,
+      updated_at INTEGER NOT NULL
+    );
+  `);
+
   console.log(`SQLite database ready at ${DB_PATH}`);
 }
 
@@ -115,6 +136,7 @@ function parseUserRow(row) {
   return {
     ...row,
     totpEnabled: !!row.totpEnabled,
+    reminderEnabled: !!row.reminderEnabled,
     backupCodeHashes: row.backupCodesRaw ? JSON.parse(row.backupCodesRaw) : [],
   };
 }
@@ -122,7 +144,9 @@ function parseUserRow(row) {
 const USER_SELECT = `
   SELECT id, email, password_hash AS passwordHash, created_at AS createdAt,
          totp_secret AS totpSecret, totp_enabled AS totpEnabled, backup_codes AS backupCodesRaw,
-         podcast_name AS podcastName
+         podcast_name AS podcastName,
+         ntfy_url AS ntfyUrl, ntfy_topic AS ntfyTopic, reminder_time AS reminderTime,
+         reminder_enabled AS reminderEnabled, last_reminder_date AS lastReminderDate
   FROM users
 `;
 
@@ -153,6 +177,33 @@ export function setPodcastName(userId, podcastName) {
   db.prepare('UPDATE users SET podcast_name = ? WHERE id = ?').run(podcastName || null, userId);
 }
 
+// ---------------------------------------------------------------------------
+// Daily reading reminders (sent via ntfy.sh — see server/reminders.js)
+// ---------------------------------------------------------------------------
+
+/** Saves a user's ntfy reminder settings ({ ntfyUrl, ntfyTopic, reminderTime, reminderEnabled }). */
+export function setReminderSettings(userId, { ntfyUrl, ntfyTopic, reminderTime, reminderEnabled }) {
+  db.prepare(`
+    UPDATE users SET ntfy_url = ?, ntfy_topic = ?, reminder_time = ?, reminder_enabled = ?
+    WHERE id = ?
+  `).run(ntfyUrl || null, ntfyTopic || null, reminderTime || null, reminderEnabled ? 1 : 0, userId);
+}
+
+/** Every account with reminders turned on and a topic configured — checked once a minute. */
+export function getUsersWithRemindersEnabled() {
+  return db.prepare(`
+    SELECT id, email, ntfy_url AS ntfyUrl, ntfy_topic AS ntfyTopic, reminder_time AS reminderTime,
+           last_reminder_date AS lastReminderDate
+    FROM users
+    WHERE reminder_enabled = 1 AND ntfy_topic IS NOT NULL AND reminder_time IS NOT NULL
+  `).all();
+}
+
+/** Marks that a user's reminder was sent today, so it isn't sent twice. */
+export function setLastReminderDate(userId, dateString) {
+  db.prepare('UPDATE users SET last_reminder_date = ? WHERE id = ?').run(dateString, userId);
+}
+
 /** Rewrites the remaining backup-code hashes after one is used (single-use codes). */
 export function setBackupCodeHashes(userId, backupCodeHashes) {
   db.prepare('UPDATE users SET backup_codes = ? WHERE id = ?').run(JSON.stringify(backupCodeHashes), userId);
@@ -182,6 +233,30 @@ export function setReaderInkPage(userId, bookAbbrev, chapter, strokes) {
   `).run(userId, bookAbbrev, Number(chapter), JSON.stringify(strokes), Date.now());
 }
 
+// ---------------------------------------------------------------------------
+// Reading plan progress — cross-device sync for started/completed reading plans
+// ---------------------------------------------------------------------------
+
+/** Returns the user's reading-plan data ({ progress, customPlans }, parsed JSON), or an empty shell. */
+export function getReadingProgress(userId) {
+  const row = db.prepare('SELECT data FROM reading_progress WHERE user_id = ?').get(userId);
+  if (!row) return { progress: [], customPlans: [] };
+  try {
+    return JSON.parse(row.data);
+  } catch {
+    return { progress: [], customPlans: [] };
+  }
+}
+
+/** Overwrites the user's whole reading-plan progress list. */
+export function setReadingProgress(userId, progress) {
+  db.prepare(`
+    INSERT INTO reading_progress (user_id, data, updated_at)
+    VALUES (?, ?, ?)
+    ON CONFLICT(user_id) DO UPDATE SET data = excluded.data, updated_at = excluded.updated_at
+  `).run(userId, JSON.stringify(progress), Date.now());
+}
+
 /**
  * Assigns any pre-existing, unowned projects (from before multi-user support)
  * to the given user. Intended to run once, right after the first account is created.

server/index.js

@@ -13,6 +13,8 @@ import {
   adminGetAllUsers, adminDeleteUser, adminGetAllProjects, adminGetProject, adminDeleteProject,
   setUserPassword, destroyAllSessionsForUser,
   getAllReaderInk, setReaderInkPage,
+  getReadingProgress, setReadingProgress,
+  setReminderSettings,
 } from './db.js';
 import { SqliteSessionStore } from './sessionStore.js';
 import {
@@ -20,6 +22,17 @@ import {
   generateTotpSecret, totpKeyUri, verifyTotpToken,
   generateBackupCodes, hashBackupCodes, consumeBackupCode, generateTemporaryPassword,
 } from './auth.js';
+import { startReminderScheduler } from './reminders.js';
+
+// Shape returned to the client for the signed-in user (login, MFA verify, /auth/me).
+function userPayload(user) {
+  return {
+    id: user.id, email: user.email, totpEnabled: user.totpEnabled, podcastName: user.podcastName ?? null,
+    isAdmin: isAdminEmail(user.email),
+    reminderEnabled: user.reminderEnabled, ntfyUrl: user.ntfyUrl ?? null, ntfyTopic: user.ntfyTopic ?? null,
+    reminderTime: user.reminderTime ?? null,
+  };
+}
 
 const __dirname = dirname(fileURLToPath(import.meta.url));
 const app = express();
@@ -107,7 +120,10 @@ app.post('/api/auth/register', async (req, res) => {
     req.session.regenerate((err) => {
       if (err) return res.status(500).json({ error: 'Could not create session.' });
       req.session.userId = user.id;
-      res.json({ id: user.id, email: user.email, totpEnabled: false, podcastName: null, isAdmin: isAdminEmail(user.email) });
+      res.json({
+        id: user.id, email: user.email, totpEnabled: false, podcastName: null, isAdmin: isAdminEmail(user.email),
+        reminderEnabled: false, ntfyUrl: null, ntfyTopic: null, reminderTime: null,
+      });
     });
   } catch (err) {
     console.error('POST /api/auth/register error:', err);
@@ -136,7 +152,7 @@ app.post('/api/auth/login', async (req, res) => {
         return res.json({ mfaRequired: true });
       }
       req.session.userId = user.id;
-      res.json({ id: user.id, email: user.email, totpEnabled: false, podcastName: user.podcastName ?? null, isAdmin: isAdminEmail(user.email) });
+      res.json(userPayload(user));
     });
   } catch (err) {
     console.error('POST /api/auth/login error:', err);
@@ -175,7 +191,7 @@ app.post('/api/auth/mfa/verify', async (req, res) => {
     req.session.regenerate((err) => {
       if (err) return res.status(500).json({ error: 'Could not create session.' });
       req.session.userId = user.id;
-      res.json({ id: user.id, email: user.email, totpEnabled: true, podcastName: user.podcastName ?? null, isAdmin: isAdminEmail(user.email) });
+      res.json(userPayload(user));
     });
   } catch (err) {
     console.error('POST /api/auth/mfa/verify error:', err);
@@ -193,10 +209,7 @@ app.post('/api/auth/logout', (req, res) => {
 app.get('/api/auth/me', (req, res) => {
   const user = req.session?.userId ? getUserById(req.session.userId) : null;
   if (!user) return res.status(401).json({ error: 'Not signed in.' });
-  res.json({
-    id: user.id, email: user.email, totpEnabled: user.totpEnabled,
-    podcastName: user.podcastName ?? null, isAdmin: isAdminEmail(user.email),
-  });
+  res.json(userPayload(user));
 });
 
 // ---------------------------------------------------------------------------
@@ -213,6 +226,44 @@ app.patch('/api/auth/profile', requireAuth, (req, res) => {
   }
 });
 
+// ---------------------------------------------------------------------------
+// PATCH /api/auth/reminder-settings — daily reading reminder via ntfy.sh
+// ---------------------------------------------------------------------------
+app.patch('/api/auth/reminder-settings', requireAuth, (req, res) => {
+  try {
+    const reminderEnabled = !!req.body?.reminderEnabled;
+    const ntfyTopic = String(req.body?.ntfyTopic ?? '').trim();
+    const ntfyUrl = String(req.body?.ntfyUrl ?? '').trim();
+    const reminderTime = String(req.body?.reminderTime ?? '').trim();
+
+    if (ntfyTopic && !/^[A-Za-z0-9_-]{1,64}$/.test(ntfyTopic)) {
+      return res.status(400).json({ error: 'Topic can only contain letters, numbers, "-" and "_".' });
+    }
+    if (ntfyUrl && !/^https?:\/\/.{1,200}$/.test(ntfyUrl)) {
+      return res.status(400).json({ error: 'Server URL must start with http:// or https://.' });
+    }
+    if (reminderEnabled) {
+      if (!ntfyTopic) return res.status(400).json({ error: 'A topic is required to enable reminders.' });
+      if (!/^([01]\d|2[0-3]):[0-5]\d$/.test(reminderTime)) {
+        return res.status(400).json({ error: 'Reminder time must be in HH:MM format.' });
+      }
+    }
+
+    setReminderSettings(req.session.userId, {
+      ntfyUrl: ntfyUrl || null,
+      ntfyTopic: ntfyTopic || null,
+      reminderTime: reminderTime || null,
+      reminderEnabled,
+    });
+    res.json({
+      reminderEnabled, ntfyUrl: ntfyUrl || null, ntfyTopic: ntfyTopic || null, reminderTime: reminderTime || null,
+    });
+  } catch (err) {
+    console.error('PATCH /api/auth/reminder-settings error:', err);
+    res.status(500).json({ error: 'Failed to save reminder settings.' });
+  }
+});
+
 // ---------------------------------------------------------------------------
 // POST /api/auth/change-password — self-service password change (Account Settings)
 // ---------------------------------------------------------------------------
@@ -394,6 +445,35 @@ app.put('/api/reader/ink/:book/:chapter', requireAuth, (req, res) => {
   }
 });
 
+// ---------------------------------------------------------------------------
+// Reading plan progress — cross-device sync for started/completed reading plans
+// ---------------------------------------------------------------------------
+
+// GET /api/reading-plans — the current user's whole progress list
+app.get('/api/reading-plans', requireAuth, (req, res) => {
+  try {
+    res.json(getReadingProgress(req.session.userId));
+  } catch (err) {
+    console.error('GET /api/reading-plans error:', err);
+    res.status(500).json({ error: 'Failed to load reading plan progress.' });
+  }
+});
+
+// PUT /api/reading-plans — overwrite the current user's whole progress list
+// (an object: { progress: [...], customPlans: [...] })
+app.put('/api/reading-plans', requireAuth, (req, res) => {
+  try {
+    if (!req.body || typeof req.body !== 'object' || Array.isArray(req.body)) {
+      return res.status(400).json({ error: 'Body must be an object.' });
+    }
+    setReadingProgress(req.session.userId, req.body);
+    res.json({ ok: true });
+  } catch (err) {
+    console.error('PUT /api/reading-plans error:', err);
+    res.status(500).json({ error: 'Failed to save reading plan progress.' });
+  }
+});
+
 // ---------------------------------------------------------------------------
 // Read-only share links
 // ---------------------------------------------------------------------------
@@ -545,6 +625,7 @@ if (isProd) {
 // Start
 // ---------------------------------------------------------------------------
 initDb();
+startReminderScheduler();
 app.listen(PORT, () => {
   console.log(`Bible Study API running on http://localhost:${PORT}`);
   if (isProd) {

server/reminders.js

@@ -0,0 +1,52 @@
+// Daily "don't forget to read" reminders, sent via ntfy.sh (https://ntfy.sh) —
+// a free pub/sub push service: POST a message to a topic URL, anyone
+// subscribed to that topic (via the ntfy app or a browser) gets notified.
+// No API keys or push-subscription plumbing needed.
+import { getUsersWithRemindersEnabled, setLastReminderDate, getReadingProgress } from './db.js';
+
+function todayDateString(d = new Date()) {
+  return `${d.getFullYear()}-${String(d.getMonth() + 1).padStart(2, '0')}-${String(d.getDate()).padStart(2, '0')}`;
+}
+
+function currentHHMM(d = new Date()) {
+  return `${String(d.getHours()).padStart(2, '0')}:${String(d.getMinutes()).padStart(2, '0')}`;
+}
+
+async function sendNtfyReminder(user) {
+  const base = (user.ntfyUrl || 'https://ntfy.sh').replace(/\/+$/, '');
+  const url = `${base}/${encodeURIComponent(user.ntfyTopic)}`;
+  const res = await fetch(url, {
+    method: 'POST',
+    headers: { Title: 'Reading Plan Reminder', Tags: 'open_book' },
+    body: "Don't forget today's reading!",
+  });
+  if (!res.ok) throw new Error(`ntfy responded ${res.status}`);
+}
+
+async function checkReminders() {
+  const now = new Date();
+  const hhmm = currentHHMM(now);
+  const today = todayDateString(now);
+  const due = getUsersWithRemindersEnabled().filter(
+    (u) => u.reminderTime === hhmm && u.lastReminderDate !== today,
+  );
+
+  for (const user of due) {
+    try {
+      const progress = getReadingProgress(user.id);
+      const hasActivePlan = Array.isArray(progress?.progress) && progress.progress.some((p) => !p.completedAt);
+      if (!hasActivePlan) continue; // nothing to nudge them about
+      await sendNtfyReminder(user);
+      setLastReminderDate(user.id, today);
+    } catch (err) {
+      console.error(`Reading reminder failed for user ${user.id}:`, err.message);
+    }
+  }
+}
+
+/** Checks once a minute whether any user's reminder time has arrived. */
+export function startReminderScheduler() {
+  setInterval(() => {
+    checkReminders().catch((err) => console.error('Reminder scheduler error:', err));
+  }, 60 * 1000);
+}

src/App.jsx

@@ -4,10 +4,10 @@ import { useAudio } from './hooks/useAudio.js';
 import { useAuth } from './hooks/useAuth.js';
 import { useBibleReader } from './hooks/useBibleReader.js';
 import { useProjectLibrary } from './hooks/useProjectLibrary.js';
-import { useReadingPlan } from './hooks/useReadingPlan.js';
+import { useReadingPlans } from './hooks/useReadingPlans.js';
 import { useSharedView } from './hooks/useSharedView.js';
 import HomePage from './pages/HomePage.jsx';
-import { saveRemoteProject } from './syncService.js';
+import { getRemoteReadingProgress, saveRemoteProject } from './syncService.js';
 import { buildExportHtml, loadProjectIndex, switchStorageUser } from './utils/bibleUtils.jsx';
 import { migrateOldStorageKeys, saveProjectToStorage } from './utils/projectStorage.js';
 
@@ -21,6 +21,7 @@ const SettingsPage = lazy(() => import('./pages/SettingsPage.jsx'));
 const SetupPage = lazy(() => import('./pages/SetupPage.jsx'));
 const StudyPage = lazy(() => import('./pages/StudyPage.jsx'));
 const PronunciationPage = lazy(() => import('./pages/PronunciationPage.jsx'));
+const ReadingPlansPage = lazy(() => import('./pages/ReadingPlansPage.jsx'));
 
 // ---------------------------------------------------------------------------
 // App component
@@ -28,7 +29,7 @@ const PronunciationPage = lazy(() => import('./pages/PronunciationPage.jsx'));
 
 const App = () => {
   const [project, setProject] = useState(null);
-  // 'home' | 'setup' | 'study' | 'reader' | 'import' | 'pronunciation' | 'settings' | 'admin'
+  // 'home' | 'setup' | 'study' | 'reader' | 'import' | 'pronunciation' | 'settings' | 'admin' | 'reading-plans'
   const [currentPage, setCurrentPage] = useState('home');
   const [projectIndex, setProjectIndex] = useState([]);
   const [saveStatus, setSaveStatus] = useState('');
@@ -36,7 +37,7 @@ const App = () => {
   const [syncStatus, setSyncStatus] = useState('');   // '' | 'syncing' | 'synced' | 'error'
   const reader = useBibleReader(currentPage);
   const audio = useAudio(reader.readerBookAbbrev, reader.readerChapter);
-  const readingPlan = useReadingPlan();
+  const readingPlans = useReadingPlans();
   const { authUser, setAuthUser, authServerDown, signIn, logout } = useAuth({
     onSignIn: (user) => {
       setProjectIndex(switchStorageUser(user.id));
@@ -45,6 +46,10 @@ const App = () => {
         .then((r) => r.ok ? r.json() : null)
         .then((serverInk) => { if (serverInk) reader.mergeServerInk(serverInk); })
         .catch(() => {});
+      // Same for reading plan progress
+      getRemoteReadingProgress().then((result) => {
+        if (result.ok) readingPlans.mergeServerReadingProgress(result.data);
+      });
     },
     onSignOut: () => {
       setProjectIndex(switchStorageUser(null));
@@ -110,6 +115,14 @@ const App = () => {
   // Navigation
   const openBibleReader = () => setCurrentPage('reader');
 
+  const openReadingPlans = () => setCurrentPage('reading-plans');
+
+  // Jumps straight into a specific plan day's first chapter and opens the reader.
+  const readReadingPlanDay = (bookAbbrev, chapter) => {
+    reader.jumpToReaderVerse(bookAbbrev, chapter, 1);
+    setCurrentPage('reader');
+  };
+
   const openNewProject = () => {
     setProject(null);
     setCurrentPage('setup');
@@ -155,8 +168,10 @@ const App = () => {
     // Home
     projectIndex,
     ...library,
-    ...readingPlan,
+    ...readingPlans,
     openBibleReader,
+    openReadingPlans,
+    readReadingPlanDay,
     openImportProject,
     openNewProject,
     // Audio (book player on Home + chapter player in the Reader)
@@ -238,6 +253,7 @@ function AppRouter() {
 
   if (currentPage === 'admin') return <AdminPage />;
   if (currentPage === 'settings') return <SettingsPage />;
+  if (currentPage === 'reading-plans') return <ReadingPlansPage />;
   if (currentPage === 'reader') return <ReaderPage />;
   if (currentPage === 'import') return <ImportPage />;
   if (currentPage === 'study') return <StudyPage />;

src/App.test.jsx

@@ -580,13 +580,16 @@ describe('Home page', () => {
     expect(await screen.findByDisplayValue('Title')).toBeInTheDocument();
   });
 
-  test('a reading plan can be started from Home', async () => {
-    seedProject(); // the plan card shows once there's at least one project
+  test('a reading plan can be started from the Reading Plans page', async () => {
+    seedProject(); // the nav button shows once there's at least one project
     const user = userEvent.setup();
     await renderApp();
-    await user.click(screen.getByRole('button', { name: /set goal/i }));
-    await user.click(screen.getByRole('button', { name: /start plan/i }));
-    await waitFor(() => expect(JSON.parse(localStorage.getItem('readingPlan'))?.bookAbbrev).toBe('GEN'));
+    await user.click(screen.getByRole('button', { name: /reading plans/i }));
+    await user.click((await screen.findAllByRole('button', { name: /^start plan$/i }))[0]);
+    await waitFor(() => {
+      const stored = JSON.parse(localStorage.getItem('readingPlanProgress'));
+      expect(stored?.progress?.[0]?.planId).toBeTruthy();
+    });
   });
 });
 

src/hooks/useReadingPlan.js

@@ -1,35 +0,0 @@
-// A simple "read this book in N weeks" plan, stored per browser.
-import { useState } from 'react';
-import { CHAPTER_COUNTS } from '../utils/bibleUtils.jsx';
-
-export function useReadingPlan() {
-  const [readingPlan, setReadingPlan] = useState(() => {
-    try { return JSON.parse(localStorage.getItem('readingPlan') || 'null'); } catch { return null; }
-  });
-
-  const createReadingPlan = (bookAbbrev, bookName, weeks) => {
-    const totalChapters = CHAPTER_COUNTS[bookAbbrev] ?? 1;
-    const plan = { bookAbbrev, bookName, totalChapters, startDate: Date.now(), targetDate: Date.now() + weeks * 7 * 24 * 60 * 60 * 1000, chaptersRead: [] };
-    setReadingPlan(plan);
-    try { localStorage.setItem('readingPlan', JSON.stringify(plan)); } catch {}
-  };
-
-  const markChapterRead = (chapter) => {
-    setReadingPlan((prev) => {
-      if (!prev) return prev;
-      const chaptersRead = prev.chaptersRead.includes(chapter)
-        ? prev.chaptersRead.filter((c) => c !== chapter)
-        : [...prev.chaptersRead, chapter].sort((a, b) => a - b);
-      const next = { ...prev, chaptersRead };
-      try { localStorage.setItem('readingPlan', JSON.stringify(next)); } catch {}
-      return next;
-    });
-  };
-
-  const clearReadingPlan = () => {
-    setReadingPlan(null);
-    try { localStorage.removeItem('readingPlan'); } catch {}
-  };
-
-  return { readingPlan, createReadingPlan, markChapterRead, clearReadingPlan };
-}

src/hooks/useReadingPlans.js

@@ -0,0 +1,181 @@
+// Tracks which reading plans (see utils/readingPlans.js) a user has started,
+// which days they've checked off, which plans they've finished, any plans
+// they've created themselves, and a cross-plan activity log (for streaks).
+// Saved locally right away and synced to the server in the background — same
+// "local wins immediately, server wins at sign-in" pattern as reader ink.
+import { useCallback, useState } from 'react';
+import { saveRemoteReadingProgress } from '../syncService.js';
+import { localDateString, registerCustomPlans } from '../utils/readingPlans.js';
+
+const STORAGE_KEY = 'readingPlanProgress';
+
+function loadLocal() {
+  try {
+    const raw = JSON.parse(localStorage.getItem(STORAGE_KEY) || 'null');
+    if (Array.isArray(raw)) return { progress: raw, customPlans: [], activity: [] }; // pre-custom-plans shape
+    return {
+      progress: raw?.progress ?? [],
+      customPlans: raw?.customPlans ?? [],
+      activity: raw?.activity ?? [],
+    };
+  } catch {
+    return { progress: [], customPlans: [], activity: [] };
+  }
+}
+
+function persist(next) {
+  try { localStorage.setItem(STORAGE_KEY, JSON.stringify(next)); } catch {}
+  saveRemoteReadingProgress(next); // fire-and-forget; errors are silent, local copy is already safe
+}
+
+const makeId = () => (crypto.randomUUID?.() ?? `${Date.now()}-${Math.random()}`);
+
+export function useReadingPlans() {
+  const [state, setState] = useState(loadLocal);
+  // Keeps the readingPlans.js lookup (getPlan/getPlanSchedule) in sync with
+  // this user's custom plans before any consumer renders this commit.
+  registerCustomPlans(state.customPlans);
+
+  const updateState = useCallback((updater) => {
+    setState((prev) => {
+      const next = updater(prev);
+      persist(next);
+      return next;
+    });
+  }, []);
+
+  const updateProgress = useCallback((updater) => {
+    updateState((prev) => ({ ...prev, progress: updater(prev.progress) }));
+  }, [updateState]);
+
+  const updateCustomPlans = useCallback((updater) => {
+    updateState((prev) => ({ ...prev, customPlans: updater(prev.customPlans) }));
+  }, [updateState]);
+
+  const startPlan = useCallback((planId) => {
+    updateProgress((prev) => {
+      if (prev.some((p) => p.planId === planId && !p.completedAt)) return prev;
+      const record = {
+        id: makeId(),
+        planId,
+        startedAt: Date.now(),
+        completedDays: [],
+        completedAt: null,
+        lastActivityAt: Date.now(),
+      };
+      return [record, ...prev];
+    });
+  }, [updateProgress]);
+
+  const toggleDay = useCallback((progressId, dayIndex, totalDays) => {
+    updateState((prev) => {
+      const target = prev.progress.find((p) => p.id === progressId);
+      if (!target) return prev;
+      const wasAlready = target.completedDays.includes(dayIndex);
+      const progress = prev.progress.map((p) => {
+        if (p.id !== progressId) return p;
+        const completedDays = wasAlready
+          ? p.completedDays.filter((d) => d !== dayIndex)
+          : [...p.completedDays, dayIndex].sort((a, b) => a - b);
+        const completedAt = completedDays.length >= totalDays ? (p.completedAt ?? Date.now()) : null;
+        return { ...p, completedDays, completedAt, lastActivityAt: Date.now() };
+      });
+      // Only marking a day *done* extends the streak; unchecking one doesn't erase it.
+      const today = localDateString();
+      const activity = !wasAlready && !prev.activity.includes(today)
+        ? [...prev.activity, today]
+        : prev.activity;
+      return { ...prev, progress, activity };
+    });
+  }, [updateState]);
+
+  const restartPlan = useCallback((progressId) => {
+    updateProgress((prev) => prev.map((p) => (
+      p.id === progressId
+        ? { ...p, completedDays: [], completedAt: null, startedAt: Date.now(), lastActivityAt: Date.now() }
+        : p
+    )));
+  }, [updateProgress]);
+
+  const removePlanProgress = useCallback((progressId) => {
+    updateProgress((prev) => prev.filter((p) => p.id !== progressId));
+  }, [updateProgress]);
+
+  // Resets the pace clock so a plan that's fallen behind schedule stops being
+  // flagged as "behind" — doesn't touch which days are actually marked done.
+  const recalibratePace = useCallback((progressId) => {
+    updateProgress((prev) => prev.map((p) => (
+      p.id === progressId
+        ? { ...p, startedAt: Date.now() - p.completedDays.length * 86400000, lastActivityAt: Date.now() }
+        : p
+    )));
+  }, [updateProgress]);
+
+  // { title, description, days, books: [abbrev, ...], chapterRanges?, image?: dataUrl } -> new custom plan id
+  const addCustomPlan = useCallback(({ title, description, days, books, chapterRanges, image }) => {
+    const id = `custom-${makeId()}`;
+    updateCustomPlans((prev) => [
+      {
+        id,
+        title: title.trim(),
+        description: (description ?? '').trim(),
+        category: 'My Plans',
+        icon: '✨',
+        image: image || undefined,
+        days: Math.max(1, Math.round(days)),
+        books,
+        chapterRanges: chapterRanges && Object.keys(chapterRanges).length > 0 ? chapterRanges : undefined,
+        custom: true,
+        createdAt: Date.now(),
+      },
+      ...prev,
+    ]);
+    return id;
+  }, [updateCustomPlans]);
+
+  const removeCustomPlan = useCallback((planId) => {
+    updateCustomPlans((prev) => prev.filter((p) => p.id !== planId));
+    updateProgress((prev) => prev.filter((p) => p.planId !== planId));
+  }, [updateCustomPlans, updateProgress]);
+
+  // Patches an existing custom plan. Pass resetProgress: true when the edit
+  // changes its books/days (day indices from before the edit no longer mean
+  // anything), which restarts any in-progress runs of it from day 1.
+  const updateCustomPlan = useCallback((planId, patch, { resetProgress = false } = {}) => {
+    updateCustomPlans((prev) => prev.map((p) => (p.id === planId ? { ...p, ...patch } : p)));
+    if (resetProgress) {
+      updateProgress((prev) => prev.map((p) => (
+        p.planId === planId
+          ? { ...p, completedDays: [], completedAt: null, startedAt: Date.now(), lastActivityAt: Date.now() }
+          : p
+      )));
+    }
+  }, [updateCustomPlans, updateProgress]);
+
+  // Server wins over whatever's local at sign-in.
+  const mergeServerReadingProgress = useCallback((serverData) => {
+    if (!serverData || typeof serverData !== 'object' || Array.isArray(serverData)) return;
+    const next = {
+      progress: Array.isArray(serverData.progress) ? serverData.progress : [],
+      customPlans: Array.isArray(serverData.customPlans) ? serverData.customPlans : [],
+      activity: Array.isArray(serverData.activity) ? serverData.activity : [],
+    };
+    try { localStorage.setItem(STORAGE_KEY, JSON.stringify(next)); } catch {}
+    setState(next);
+  }, []);
+
+  return {
+    planProgress: state.progress,
+    customPlans: state.customPlans,
+    readingActivity: state.activity,
+    startPlan,
+    toggleDay,
+    restartPlan,
+    removePlanProgress,
+    recalibratePace,
+    addCustomPlan,
+    removeCustomPlan,
+    updateCustomPlan,
+    mergeServerReadingProgress,
+  };
+}

src/pages/HomePage.jsx

@@ -4,21 +4,23 @@ import AuthStatus from '../components/AuthStatus.jsx';
 import AudioPlayer from '../components/AudioPlayer.jsx';
 import {
   bookOptions,
-  CHAPTER_COUNTS,
   formatChunkReference,
   formatRelativeDate,
   loadProjectIndex,
 } from '../utils/bibleUtils.jsx';
 import { loadProjectById } from '../utils/projectStorage.js';
+import { getPlan, getPlanSchedule, formatDayReadings, nextUnreadDayIndex, computeStreak } from '../utils/readingPlans.js';
 
 export default function HomePage() {
   const {
     autoRestoredCount,
     staleLocalProjects,
     projectIndex,
-    readingPlan,
-    createReadingPlan,
-    clearReadingPlan,
+    planProgress,
+    readingActivity,
+    toggleDay,
+    openReadingPlans,
+    readReadingPlanDay,
     audioBook, setAudioBook,
     audioNarrator, setAudioNarrator,
     audioState,
@@ -99,6 +101,14 @@ export default function HomePage() {
             >
               📖 Read Bible
             </button>
+            <button
+              type="button"
+              onClick={openReadingPlans}
+              className="rounded-xl border border-slate-500 px-4 py-2 text-sm font-semibold text-white transition hover:bg-slate-700"
+            >
+              <span className="hidden sm:inline">📅 Reading Plans</span>
+              <span className="sm:hidden">📅 Plans</span>
+            </button>
             <button
               type="button"
               onClick={openImportProject}
@@ -145,6 +155,15 @@ export default function HomePage() {
             </div>
           </div>
         )}
+        {/* Reading plans summary — shown regardless of whether there are any study projects yet */}
+        <ReadingPlansSummaryCard
+          planProgress={planProgress}
+          readingActivity={readingActivity}
+          openReadingPlans={openReadingPlans}
+          readReadingPlanDay={readReadingPlanDay}
+          toggleDay={toggleDay}
+        />
+
         {projectIndex.length === 0 ? (
           <div className="mx-auto max-w-xl rounded-3xl border border-dashed border-slate-300 bg-white p-10 text-center shadow-panel">
             <p className="text-lg font-semibold text-slate-700">No projects yet</p>
@@ -233,9 +252,6 @@ export default function HomePage() {
               </div>
             )}
 
-            {/* Reading plan card */}
-            <ReadingPlanCard readingPlan={readingPlan} createReadingPlan={createReadingPlan} clearReadingPlan={clearReadingPlan} openBibleReader={openBibleReader} />
-
             <div className="mb-4">
               <AudioPlayer
                 title="Listen to BSB Audio"
@@ -394,108 +410,97 @@ export default function HomePage() {
   );
 }
 
-function ReadingPlanCard({ readingPlan, createReadingPlan, clearReadingPlan, openBibleReader }) {
-  const [showForm, setShowForm] = useState(false);
-  const [planBook, setPlanBook] = useState(bookOptions[0].abbrev);
-  const [planWeeks, setPlanWeeks] = useState(4);
+function ReadingPlansSummaryCard({ planProgress, readingActivity, openReadingPlans, readReadingPlanDay, toggleDay }) {
+  const active = planProgress.filter((p) => !p.completedAt);
+  const streak = computeStreak(readingActivity);
 
-  if (readingPlan) {
-    const pct = readingPlan.totalChapters > 0
-      ? Math.round((readingPlan.chaptersRead.length / readingPlan.totalChapters) * 100)
-      : 0;
-    const daysLeft = Math.max(0, Math.ceil((readingPlan.targetDate - Date.now()) / 86400000));
-    const chapLeft = readingPlan.totalChapters - readingPlan.chaptersRead.length;
-    const paceNeeded = daysLeft > 0 ? (chapLeft / daysLeft).toFixed(1) : '—';
+  const streakBadge = streak.current > 0 && (
+    <span className="rounded-full bg-amber-100 px-2.5 py-1 text-xs font-semibold text-amber-700">
+      🔥 {streak.current} day{streak.current !== 1 ? 's' : ''}
+    </span>
+  );
+
+  if (active.length === 0) {
     return (
-      <div className="mb-4 rounded-3xl border border-emerald-200 bg-emerald-50 p-5 shadow-panel">
-        <div className="flex items-start justify-between gap-3">
-          <div>
-            <p className="text-xs font-semibold uppercase tracking-widest text-emerald-600">Reading Plan</p>
-            <h3 className="mt-1 text-base font-semibold text-slate-900">{readingPlan.bookName}</h3>
-            <p className="mt-0.5 text-sm text-slate-600">
-              {readingPlan.chaptersRead.length} / {readingPlan.totalChapters} chapters · {daysLeft} day{daysLeft !== 1 ? 's' : ''} left · {paceNeeded} ch/day needed
-            </p>
-          </div>
+      <div className="mb-4 flex items-center justify-between gap-3 rounded-3xl border border-slate-200 bg-white p-5 shadow-panel">
+        <div>
           <div className="flex items-center gap-2">
-            <button
-              type="button"
-              onClick={openBibleReader}
-              className="rounded-xl bg-emerald-600 px-3 py-1.5 text-sm font-semibold text-white hover:bg-emerald-500"
-            >
-              Read
-            </button>
-            <button
-              type="button"
-              onClick={() => { if (window.confirm('Clear reading plan?')) clearReadingPlan(); }}
-              className="rounded-xl border border-emerald-300 px-3 py-1.5 text-sm text-emerald-700 hover:bg-emerald-100"
-            >
-              Clear
-            </button>
+            <p className="text-sm font-semibold text-slate-700">Reading Plans</p>
+            {streakBadge}
           </div>
+          <p className="mt-1 text-xs text-slate-500">Read through the Bible, the Gospels, Psalms, and more — one day at a time.</p>
         </div>
-        <div className="mt-3 h-2.5 w-full overflow-hidden rounded-full bg-emerald-200">
-          <div className="h-full rounded-full bg-emerald-500 transition-all" style={{ width: `${pct}%` }} />
-        </div>
-        <p className="mt-1 text-right text-xs text-emerald-700">{pct}%</p>
-        {readingPlan.chaptersRead.length > 0 && (
-          <p className="mt-1 text-xs text-slate-500">
-            Read: ch. {readingPlan.chaptersRead.slice(0, 12).join(', ')}{readingPlan.chaptersRead.length > 12 ? '…' : ''}
-          </p>
-        )}
+        <button
+          type="button"
+          onClick={openReadingPlans}
+          className="shrink-0 rounded-xl border border-slate-300 px-3 py-1.5 text-sm font-semibold text-slate-700 hover:bg-slate-50"
+        >
+          Browse plans
+        </button>
       </div>
     );
   }
 
+  const rows = active
+    .map((progress) => {
+      const plan = getPlan(progress.planId);
+      if (!plan) return null;
+      const schedule = getPlanSchedule(progress.planId);
+      const pct = plan.days > 0 ? Math.round((progress.completedDays.length / plan.days) * 100) : 0;
+      const dayIndex = nextUnreadDayIndex(plan, progress.completedDays);
+      const refs = dayIndex != null ? schedule[dayIndex] : null;
+      return { progress, plan, pct, dayIndex, refs };
+    })
+    .filter(Boolean);
+
   return (
-    <div className="mb-4 rounded-3xl border border-slate-200 bg-white p-5 shadow-panel">
-      {showForm ? (
-        <div className="flex flex-wrap items-center gap-3">
-          <span className="text-sm font-semibold text-slate-700">Read</span>
-          <select
-            value={planBook}
-            onChange={(e) => setPlanBook(e.target.value)}
-            className="rounded-xl border border-slate-300 bg-slate-50 px-2 py-1.5 text-sm text-slate-900 focus:border-sky-500 focus:outline-none focus:ring-2 focus:ring-sky-200"
-          >
-            {bookOptions.map((b) => (
-              <option key={b.abbrev} value={b.abbrev}>{b.name} ({CHAPTER_COUNTS[b.abbrev] ?? '?'} ch)</option>
-            ))}
-          </select>
-          <span className="text-sm text-slate-600">in</span>
-          <select
-            value={planWeeks}
-            onChange={(e) => setPlanWeeks(Number(e.target.value))}
-            className="rounded-xl border border-slate-300 bg-slate-50 px-2 py-1.5 text-sm text-slate-900 focus:border-sky-500 focus:outline-none focus:ring-2 focus:ring-sky-200"
-          >
-            {[1,2,3,4,6,8,12,16,26,52].map((w) => <option key={w} value={w}>{w} week{w !== 1 ? 's' : ''}</option>)}
-          </select>
-          <button
-            type="button"
-            onClick={() => {
-              const book = bookOptions.find((b) => b.abbrev === planBook);
-              createReadingPlan(planBook, book?.name ?? planBook, planWeeks);
-              setShowForm(false);
-            }}
-            className="rounded-xl bg-emerald-600 px-3 py-1.5 text-sm font-semibold text-white hover:bg-emerald-500"
-          >
-            Start plan
-          </button>
-          <button type="button" onClick={() => setShowForm(false)} className="text-sm text-slate-400 hover:text-slate-600">Cancel</button>
+    <div className="mb-4 rounded-3xl border border-indigo-200 bg-indigo-50 p-5 shadow-panel">
+      <div className="mb-3 flex items-center justify-between gap-3">
+        <div className="flex items-center gap-2">
+          <h3 className="text-sm font-semibold text-slate-900">📅 Today's Reading</h3>
+          {streakBadge}
         </div>
-      ) : (
-        <div className="flex items-center justify-between gap-3">
-          <div>
-            <p className="text-sm font-semibold text-slate-700">Reading Plan</p>
-            <p className="text-xs text-slate-500">Set a goal to read through a book, track chapters as you go.</p>
+        <button type="button" onClick={openReadingPlans} className="text-xs font-semibold text-indigo-700 hover:underline">
+          View all plans →
+        </button>
+      </div>
+      <div className="space-y-1.5">
+        {rows.map(({ progress, plan, pct, dayIndex, refs }) => (
+          <div key={progress.id} className="rounded-2xl bg-white px-4 py-2.5 shadow-sm">
+            <div className="flex flex-wrap items-center gap-3">
+              {refs ? (
+                <input
+                  type="checkbox"
+                  checked={false}
+                  onChange={() => toggleDay(progress.id, dayIndex, plan.days)}
+                  className="h-4 w-4 shrink-0 rounded border-slate-300 text-indigo-600 focus:ring-indigo-500"
+                />
+              ) : (
+                <span className="shrink-0 text-emerald-500">✓</span>
+              )}
+              <span className="shrink-0 text-lg leading-none">{plan.icon ?? '📖'}</span>
+              <div className="min-w-0 flex-1">
+                <p className="truncate text-sm font-semibold text-slate-900">{plan.title}</p>
+                <p className="truncate text-xs text-slate-500">
+                  {refs ? formatDayReadings(refs) : `${progress.completedDays.length} / ${plan.days} days`}
+                </p>
+              </div>
+              {refs && (
+                <button
+                  type="button"
+                  onClick={() => readReadingPlanDay(refs[0].book, refs[0].chapter)}
+                  className="shrink-0 rounded-xl bg-indigo-600 px-3 py-1.5 text-sm font-semibold text-white hover:bg-indigo-500"
+                >
+                  Read
+                </button>
+              )}
+            </div>
+            <div className="mt-2 h-1.5 w-full overflow-hidden rounded-full bg-slate-100">
+              <div className="h-full rounded-full bg-indigo-400 transition-all" style={{ width: `${pct}%` }} />
+            </div>
           </div>
-          <button
-            type="button"
-            onClick={() => setShowForm(true)}
-            className="shrink-0 rounded-xl border border-slate-300 px-3 py-1.5 text-sm font-semibold text-slate-700 hover:bg-slate-50"
-          >
-            Set goal
-          </button>
-        </div>
-      )}
+        ))}
+      </div>
     </div>
   );
 }

src/pages/ReaderPage.jsx

@@ -4,6 +4,7 @@ import { formatCrossRef, speakOriginalWord } from '../utils/wordStudy.js';
 import AuthStatus from '../components/AuthStatus.jsx';
 import AudioPlayer from '../components/AudioPlayer.jsx';
 import { bookOptions, BookmarkIcon, CopyIcon } from '../utils/bibleUtils.jsx';
+import { getPlan, getPlanSchedule, findDayIndexForRef } from '../utils/readingPlans.js';
 import DrawCanvas from './DrawCanvas.jsx';
 
 const NO_STROKES = []; // stable fallback so DrawCanvas doesn't redraw every render
@@ -57,11 +58,43 @@ export default function ReaderPage() {
     readerTextHighlights,
     addTextHighlight,
     removeTextHighlight,
-    readingPlan,
-    markChapterRead,
+    planProgress,
+    toggleDay,
   } = useApp();
 
   const readerBook = bookOptions.find((b) => b.abbrev === readerBookAbbrev);
+
+  // Active reading plans whose schedule includes the chapter currently on screen.
+  const planMatches = useMemo(() => {
+    return planProgress
+      .filter((p) => !p.completedAt)
+      .map((p) => {
+        const plan = getPlan(p.planId);
+        if (!plan) return null;
+        const dayIndex = findDayIndexForRef(getPlanSchedule(p.planId), readerBookAbbrev, readerChapter);
+        if (dayIndex === -1) return null;
+        return { progressId: p.id, plan, dayIndex, done: p.completedDays.includes(dayIndex) };
+      })
+      .filter(Boolean);
+  }, [planProgress, readerBookAbbrev, readerChapter]);
+
+  // Auto-marks matching plan days as read after a dwell period on the chapter,
+  // so you don't have to remember to tap "Mark read" yourself. Resets whenever
+  // you navigate to a different book/chapter; a manual unmark isn't re-marked.
+  const planMatchesRef = useRef(planMatches);
+  planMatchesRef.current = planMatches;
+  const [autoMarkedNotice, setAutoMarkedNotice] = useState('');
+  useEffect(() => {
+    const timer = window.setTimeout(() => {
+      const justMarked = planMatchesRef.current.filter((m) => !m.done);
+      if (justMarked.length === 0) return;
+      justMarked.forEach((m) => toggleDay(m.progressId, m.dayIndex, m.plan.days));
+      setAutoMarkedNotice(`✓ Marked read — ${justMarked.map((m) => m.plan.title).join(', ')}`);
+      window.setTimeout(() => setAutoMarkedNotice(''), 4000);
+    }, 20000);
+    return () => window.clearTimeout(timer);
+  }, [readerBookAbbrev, readerChapter, toggleDay]);
+
   const [readerDrawMode, setReaderDrawMode] = useState(false);
   const [readerWideLayout, setReaderWideLayout] = useState(() => localStorage.getItem('reader-wide') === '1');
   const readerPageInkStrokes = readerInkByPage?.[`${readerBookAbbrev}_${readerChapter}`] ?? NO_STROKES;
@@ -316,19 +349,17 @@ export default function ReaderPage() {
             </select>
           </label>
           <div className="ml-auto flex items-center gap-2">
-            {readingPlan && readingPlan.bookAbbrev === readerBookAbbrev && (() => {
-              const done = readingPlan.chaptersRead.includes(readerChapter);
-              return (
-                <button
-                  type="button"
-                  onClick={() => markChapterRead(readerChapter)}
-                  className={`rounded-xl px-3 py-1.5 text-sm font-semibold transition ${done ? 'bg-emerald-100 text-emerald-700 hover:bg-emerald-200' : 'border border-emerald-300 bg-white text-emerald-700 hover:bg-emerald-50'}`}
-                  title={done ? 'Click to unmark' : 'Mark this chapter as read in your reading plan'}
-                >
-                  {done ? '✓ Read' : 'Mark as read'}
-                </button>
-              );
-            })()}
+            {planMatches.map(({ progressId, plan, dayIndex, done }) => (
+              <button
+                key={progressId}
+                type="button"
+                onClick={() => toggleDay(progressId, dayIndex, plan.days)}
+                className={`rounded-xl px-3 py-1.5 text-sm font-semibold transition ${done ? 'bg-emerald-100 text-emerald-700 hover:bg-emerald-200' : 'border border-emerald-300 bg-white text-emerald-700 hover:bg-emerald-50'}`}
+                title={done ? `Click to unmark Day ${dayIndex + 1} of "${plan.title}"` : `Mark Day ${dayIndex + 1} of "${plan.title}" as read`}
+              >
+                {done ? `✓ ${plan.title}` : `Mark read — ${plan.title}`}
+              </button>
+            ))}
             <button type="button" onClick={readerGoToPreviousChapter} disabled={readerChapter <= 1}
               className="rounded-xl border border-slate-300 bg-white px-4 py-1.5 text-sm font-semibold text-slate-700 transition hover:bg-slate-50 disabled:cursor-not-allowed disabled:opacity-40">
               ‹ Prev
@@ -340,6 +371,12 @@ export default function ReaderPage() {
           </div>
         </div>
 
+        {autoMarkedNotice && (
+          <div className="mb-4 rounded-2xl border border-emerald-200 bg-emerald-50 px-4 py-2 text-sm font-semibold text-emerald-700">
+            {autoMarkedNotice}
+          </div>
+        )}
+
         {/* Tool strip: font size · cross-refs · search */}
         <div className="mb-4 flex flex-wrap items-center gap-2 rounded-3xl border border-slate-200 bg-white px-4 py-3 shadow-panel">
           <span className="text-xs text-slate-500 mr-1">Text size</span>

src/pages/ReadingPlansPage.jsx

@@ -0,0 +1,739 @@
+import { useRef, useState } from 'react';
+import { useApp } from '../context/AppContext.js';
+import AuthStatus from '../components/AuthStatus.jsx';
+import { bookOptions, CHAPTER_COUNTS, formatRelativeDate } from '../utils/bibleUtils.jsx';
+import {
+  READING_PLANS,
+  getPlan,
+  getPlanSchedule,
+  formatDayReadings,
+  firstRefOfDay,
+  nextUnreadDayIndex,
+  themeForCategory,
+  computeStreak,
+  daysBehindPace,
+  bookChapterCount,
+  ALL_BOOKS,
+  OT_BOOKS,
+  NT_BOOKS,
+  GOSPELS,
+  PENTATEUCH,
+  WISDOM_BOOKS,
+} from '../utils/readingPlans.js';
+
+export default function ReadingPlansPage() {
+  const {
+    goHome,
+    planProgress,
+    customPlans,
+    readingActivity,
+    startPlan,
+    toggleDay,
+    restartPlan,
+    removePlanProgress,
+    recalibratePace,
+    addCustomPlan,
+    removeCustomPlan,
+    updateCustomPlan,
+    readReadingPlanDay,
+  } = useApp();
+  const [builderMode, setBuilderMode] = useState(null); // null | 'new' | a custom plan id to edit
+
+  const activeProgress = planProgress.filter((p) => !p.completedAt);
+  const completedProgress = planProgress
+    .filter((p) => p.completedAt)
+    .sort((a, b) => b.completedAt - a.completedAt);
+  const streak = computeStreak(readingActivity);
+  const editingPlan = builderMode && builderMode !== 'new' ? customPlans.find((p) => p.id === builderMode) : null;
+
+  const categoryOrder = ['Whole Bible', 'Old Testament', 'New Testament', 'Topical'];
+  const builtinCategories = categoryOrder.filter((c) => READING_PLANS.some((p) => p.category === c));
+
+  return (
+    <div className="min-h-screen bg-slate-50 text-slate-900">
+      <header className="border-b border-slate-200 bg-slate-900 text-white shadow-sm">
+        <div className="mx-auto flex max-w-7xl flex-wrap items-center justify-between gap-4 px-4 py-5 sm:px-6 lg:px-8">
+          <div>
+            <p className="text-sm uppercase tracking-[0.24em] text-slate-300">Bible Study Project</p>
+            <h1 className="mt-2 text-2xl font-semibold">Reading Plans</h1>
+            {streak.current > 0 && (
+              <p className="mt-1 text-sm text-amber-300">
+                🔥 {streak.current} day{streak.current !== 1 ? 's' : ''} in a row
+                {streak.longest > streak.current && ` · best: ${streak.longest}`}
+              </p>
+            )}
+          </div>
+          <div className="flex items-center gap-3">
+            <button
+              type="button"
+              onClick={goHome}
+              className="rounded-xl border border-slate-500 px-5 py-2.5 text-sm font-semibold text-white transition hover:bg-slate-700"
+            >
+              ← Back
+            </button>
+            <AuthStatus />
+          </div>
+        </div>
+      </header>
+
+      <main className="mx-auto max-w-5xl space-y-8 px-4 py-8 sm:px-6 lg:px-8">
+        {activeProgress.length > 0 && (
+          <TodayPanel activeProgress={activeProgress} onRead={readReadingPlanDay} onToggleDay={toggleDay} />
+        )}
+
+        {activeProgress.length > 0 && (
+          <section>
+            <h2 className="mb-3 text-lg font-semibold text-slate-900">Continue Reading</h2>
+            <div className="space-y-4">
+              {activeProgress.map((progress) => (
+                <ActivePlanCard
+                  key={progress.id}
+                  progress={progress}
+                  onRead={readReadingPlanDay}
+                  onToggleDay={toggleDay}
+                  onRestart={restartPlan}
+                  onRemove={removePlanProgress}
+                  onRecalibrate={recalibratePace}
+                />
+              ))}
+            </div>
+          </section>
+        )}
+
+        <section>
+          <div className="mb-3 flex items-center justify-between">
+            <h2 className="text-lg font-semibold text-slate-900">My Plans</h2>
+            {builderMode === null && (
+              <button
+                type="button"
+                onClick={() => setBuilderMode('new')}
+                className="rounded-xl bg-rose-600 px-3 py-1.5 text-sm font-semibold text-white transition hover:bg-rose-500"
+              >
+                + New Plan
+              </button>
+            )}
+          </div>
+          {builderMode !== null && (
+            <div className="mb-4">
+              <CustomPlanBuilder
+                key={builderMode}
+                initialValues={editingPlan}
+                onSubmit={(values) => {
+                  if (editingPlan) {
+                    const booksChanged = JSON.stringify(values.books) !== JSON.stringify(editingPlan.books);
+                    const daysChanged = values.days !== editingPlan.days;
+                    const rangesChanged = JSON.stringify(values.chapterRanges ?? {}) !== JSON.stringify(editingPlan.chapterRanges ?? {});
+                    updateCustomPlan(editingPlan.id, {
+                      title: values.title.trim(),
+                      description: values.description.trim(),
+                      days: Math.max(1, Math.round(values.days)),
+                      books: values.books,
+                      chapterRanges: values.chapterRanges && Object.keys(values.chapterRanges).length > 0 ? values.chapterRanges : undefined,
+                      image: values.image || undefined,
+                    }, { resetProgress: booksChanged || daysChanged || rangesChanged });
+                  } else {
+                    addCustomPlan(values);
+                  }
+                  setBuilderMode(null);
+                }}
+                onCancel={() => setBuilderMode(null)}
+              />
+            </div>
+          )}
+          {customPlans.length > 0 ? (
+            <div className="grid gap-4 sm:grid-cols-2 lg:grid-cols-3">
+              {customPlans.map((plan) => (
+                <PlanCatalogCard
+                  key={plan.id}
+                  plan={plan}
+                  progressForPlan={planProgress.filter((p) => p.planId === plan.id)}
+                  onStart={startPlan}
+                  onEdit={(id) => setBuilderMode(id)}
+                  onDelete={(id) => { if (window.confirm('Delete this plan? Its progress history will be removed too.')) removeCustomPlan(id); }}
+                  onImageChange={(id, image) => updateCustomPlan(id, { image })}
+                />
+              ))}
+            </div>
+          ) : builderMode === null && (
+            <p className="text-sm text-slate-500">You haven't created any plans yet — try "+ New Plan".</p>
+          )}
+        </section>
+
+        {builtinCategories.map((category) => (
+          <section key={category}>
+            <h2 className="mb-3 text-lg font-semibold text-slate-900">{category}</h2>
+            <div className="grid gap-4 sm:grid-cols-2 lg:grid-cols-3">
+              {READING_PLANS.filter((p) => p.category === category).map((plan) => (
+                <PlanCatalogCard
+                  key={plan.id}
+                  plan={plan}
+                  progressForPlan={planProgress.filter((p) => p.planId === plan.id)}
+                  onStart={startPlan}
+                />
+              ))}
+            </div>
+          </section>
+        ))}
+
+        {completedProgress.length > 0 && (
+          <section>
+            <h2 className="mb-3 text-lg font-semibold text-slate-900">Completed</h2>
+            <div className="space-y-2">
+              {completedProgress.map((progress) => {
+                const plan = getPlan(progress.planId);
+                if (!plan) return null;
+                return (
+                  <div
+                    key={progress.id}
+                    className="flex flex-wrap items-center justify-between gap-3 rounded-2xl border border-slate-200 bg-white px-5 py-3 shadow-panel"
+                  >
+                    <div>
+                      <p className="text-sm font-semibold text-slate-900">{plan.icon ?? '✓'} {plan.title}</p>
+                      <p className="text-xs text-slate-500">Completed {formatRelativeDate(progress.completedAt)}</p>
+                    </div>
+                    <div className="flex items-center gap-3 text-sm">
+                      <button
+                        type="button"
+                        onClick={() => restartPlan(progress.id)}
+                        className="font-semibold text-slate-700 hover:underline"
+                      >
+                        Start again
+                      </button>
+                      <button
+                        type="button"
+                        onClick={() => { if (window.confirm('Remove this from your history?')) removePlanProgress(progress.id); }}
+                        className="text-rose-500 hover:text-rose-700"
+                      >
+                        Remove
+                      </button>
+                    </div>
+                  </div>
+                );
+              })}
+            </div>
+          </section>
+        )}
+      </main>
+    </div>
+  );
+}
+
+// A single combined "what's left to read today, across every active plan" list —
+// the fast-glance view; ActivePlanCard below still has full detail/expand/restart.
+function TodayPanel({ activeProgress, onRead, onToggleDay }) {
+  const rows = activeProgress
+    .map((progress) => {
+      const plan = getPlan(progress.planId);
+      if (!plan) return null;
+      const schedule = getPlanSchedule(progress.planId);
+      const dayIndex = nextUnreadDayIndex(plan, progress.completedDays);
+      if (dayIndex == null) return null;
+      const refs = schedule[dayIndex];
+      return { progress, plan, dayIndex, refs, ref: firstRefOfDay(refs) };
+    })
+    .filter(Boolean);
+
+  if (rows.length === 0) return null;
+
+  return (
+    <section className="rounded-3xl border border-indigo-200 bg-indigo-50 p-5 shadow-panel">
+      <h2 className="mb-3 text-lg font-semibold text-slate-900">📅 Today</h2>
+      <div className="space-y-1.5">
+        {rows.map(({ progress, plan, dayIndex, refs, ref }) => (
+          <div key={progress.id} className="flex flex-wrap items-center gap-3 rounded-2xl bg-white px-4 py-2.5 shadow-sm">
+            <input
+              type="checkbox"
+              checked={false}
+              onChange={() => onToggleDay(progress.id, dayIndex, plan.days)}
+              className="h-4 w-4 shrink-0 rounded border-slate-300 text-indigo-600 focus:ring-indigo-500"
+            />
+            <span className="shrink-0 text-lg leading-none">{plan.icon ?? '📖'}</span>
+            <div className="min-w-0 flex-1">
+              <p className="truncate text-sm font-semibold text-slate-900">{plan.title}</p>
+              <p className="truncate text-xs text-slate-500">{formatDayReadings(refs)}</p>
+            </div>
+            <button
+              type="button"
+              onClick={() => onRead(ref.book, ref.chapter)}
+              className="shrink-0 rounded-xl bg-indigo-600 px-3 py-1.5 text-sm font-semibold text-white hover:bg-indigo-500"
+            >
+              Read
+            </button>
+          </div>
+        ))}
+      </div>
+    </section>
+  );
+}
+
+function PlanCover({ plan }) {
+  const [imgFailed, setImgFailed] = useState(false);
+  const theme = themeForCategory(plan.category);
+  const showImage = !!plan.image && !imgFailed;
+  return (
+    <div className={`relative flex h-32 items-center justify-center overflow-hidden bg-gradient-to-br ${theme.gradient}`}>
+      {showImage && (
+        <img
+          src={plan.image}
+          alt=""
+          onError={() => setImgFailed(true)}
+          style={{ objectPosition: plan.imageFocus ?? 'center' }}
+          className="absolute inset-0 h-full w-full object-cover"
+        />
+      )}
+      {!showImage && <span className="text-4xl drop-shadow">{plan.icon ?? '📖'}</span>}
+    </div>
+  );
+}
+
+function ActivePlanCard({ progress, onRead, onToggleDay, onRestart, onRemove, onRecalibrate }) {
+  const [expanded, setExpanded] = useState(false);
+  const plan = getPlan(progress.planId);
+  if (!plan) return null;
+
+  const theme = themeForCategory(plan.category);
+  const schedule = getPlanSchedule(progress.planId);
+  const pct = plan.days > 0 ? Math.round((progress.completedDays.length / plan.days) * 100) : 0;
+  const nextDay = nextUnreadDayIndex(plan, progress.completedDays);
+  const nextRefs = nextDay != null ? schedule[nextDay] : null;
+  const nextFirstRef = nextRefs ? firstRefOfDay(nextRefs) : null;
+  const behind = daysBehindPace(plan, progress);
+
+  return (
+    <div className="overflow-hidden rounded-3xl border border-emerald-200 bg-emerald-50 shadow-panel">
+      <div className={`h-1.5 w-full bg-gradient-to-r ${theme.gradient}`} />
+      <div className="p-5">
+        <div className="flex flex-wrap items-start justify-between gap-3">
+          <div>
+            <p className={`text-xs font-semibold uppercase tracking-widest ${theme.text}`}>{plan.category}</p>
+            <h3 className="mt-1 text-base font-semibold text-slate-900">{plan.icon ?? '📖'} {plan.title}</h3>
+            <p className="mt-0.5 text-sm text-slate-600">
+              {progress.completedDays.length} / {plan.days} days
+              {nextRefs && <> · Next: Day {nextDay + 1} — {formatDayReadings(nextRefs)}</>}
+            </p>
+          </div>
+          <div className="flex flex-wrap items-center gap-2">
+            {nextFirstRef && (
+              <button
+                type="button"
+                onClick={() => onRead(nextFirstRef.book, nextFirstRef.chapter)}
+                className="rounded-xl bg-emerald-600 px-3 py-1.5 text-sm font-semibold text-white hover:bg-emerald-500"
+              >
+                Read
+              </button>
+            )}
+            <button
+              type="button"
+              onClick={() => setExpanded((e) => !e)}
+              className="rounded-xl border border-emerald-300 px-3 py-1.5 text-sm text-emerald-700 hover:bg-emerald-100"
+            >
+              {expanded ? 'Hide days' : 'View days'}
+            </button>
+          </div>
+        </div>
+
+        <div className="mt-3 h-2.5 w-full overflow-hidden rounded-full bg-emerald-200">
+          <div className="h-full rounded-full bg-emerald-500 transition-all" style={{ width: `${pct}%` }} />
+        </div>
+        <p className="mt-1 text-right text-xs text-emerald-700">{pct}%</p>
+
+        {behind >= 2 && (
+          <div className="mt-2 flex flex-wrap items-center justify-between gap-2 rounded-xl border border-amber-200 bg-amber-50 px-3 py-2 text-xs">
+            <span className="text-amber-700">📅 {behind} days behind pace</span>
+            <button
+              type="button"
+              onClick={() => onRecalibrate(progress.id)}
+              className="font-semibold text-amber-800 hover:underline"
+            >
+              Catch me up
+            </button>
+          </div>
+        )}
+
+        {expanded && (
+          <div className="mt-3 max-h-72 overflow-y-auto rounded-2xl border border-emerald-100 bg-white p-2">
+            {schedule.map((dayRefs, i) => {
+              const done = progress.completedDays.includes(i);
+              const ref = firstRefOfDay(dayRefs);
+              return (
+                <div key={i} className="flex items-center gap-2 rounded-lg px-2 py-1.5 text-sm hover:bg-slate-50">
+                  <input
+                    type="checkbox"
+                    checked={done}
+                    onChange={() => onToggleDay(progress.id, i, plan.days)}
+                    className="h-4 w-4 shrink-0 rounded border-slate-300 text-emerald-600 focus:ring-emerald-500"
+                  />
+                  <span className={done ? 'flex-1 text-slate-400 line-through' : 'flex-1 text-slate-700'}>
+                    Day {i + 1} — {formatDayReadings(dayRefs)}
+                  </span>
+                  <button
+                    type="button"
+                    onClick={() => onRead(ref.book, ref.chapter)}
+                    className="shrink-0 text-xs font-semibold text-sky-600 hover:underline"
+                  >
+                    Read
+                  </button>
+                </div>
+              );
+            })}
+          </div>
+        )}
+
+        <div className="mt-3 flex items-center gap-4 text-xs">
+          <button
+            type="button"
+            onClick={() => { if (window.confirm('Restart this plan from day 1?')) onRestart(progress.id); }}
+            className="font-semibold text-slate-500 hover:text-slate-700"
+          >
+            Restart
+          </button>
+          <button
+            type="button"
+            onClick={() => { if (window.confirm('Remove this plan?')) onRemove(progress.id); }}
+            className="font-semibold text-rose-500 hover:text-rose-700"
+          >
+            Remove
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+function PlanCatalogCard({ plan, progressForPlan, onStart, onEdit, onDelete, onImageChange }) {
+  const active = progressForPlan.find((p) => !p.completedAt);
+  const completedCount = progressForPlan.filter((p) => p.completedAt).length;
+  const theme = themeForCategory(plan.category);
+  const fileInputRef = useRef(null);
+  const [imageError, setImageError] = useState('');
+
+  const pickImage = async (e) => {
+    const file = e.target.files?.[0];
+    e.target.value = ''; // lets the same file be re-picked later
+    if (!file) return;
+    try {
+      setImageError('');
+      onImageChange(plan.id, await resizeImageToDataUrl(file));
+    } catch {
+      setImageError("Couldn't use that image.");
+    }
+  };
+
+  return (
+    <div className="group overflow-hidden rounded-2xl border border-slate-200 bg-white shadow-panel transition hover:shadow-lg">
+      <PlanCover plan={plan} />
+      <div className="flex flex-col gap-2 p-5">
+        <div className="flex items-start justify-between gap-2">
+          <h3 className="text-sm font-semibold text-slate-900">{plan.title}</h3>
+          <div className="flex shrink-0 items-center gap-2">
+            {onEdit && (
+              <button type="button" onClick={() => onEdit(plan.id)} title="Edit plan" className="text-slate-300 transition hover:text-slate-600">
+                ✎
+              </button>
+            )}
+            {onDelete && (
+              <button
+                type="button"
+                onClick={() => onDelete(plan.id)}
+                title="Delete plan"
+                className="text-slate-300 transition hover:text-rose-500"
+              >
+                ✕
+              </button>
+            )}
+          </div>
+        </div>
+        <p className="flex-1 text-xs text-slate-500">{plan.description || 'A custom reading plan.'}</p>
+        <div className="flex flex-wrap items-center gap-2">
+          <span className={`rounded-full px-2 py-0.5 text-xs font-semibold ${theme.chip}`}>{plan.days} days</span>
+          {completedCount > 0 && <span className="text-xs font-semibold text-emerald-600">✓ Completed {completedCount}×</span>}
+        </div>
+        {onImageChange && (
+          <div className="flex items-center gap-3 text-xs">
+            <button type="button" onClick={() => fileInputRef.current?.click()} className="font-semibold text-slate-500 hover:text-slate-700">
+              {plan.image ? 'Change cover' : '+ Add cover photo'}
+            </button>
+            {plan.image && (
+              <button type="button" onClick={() => onImageChange(plan.id, null)} className="text-slate-400 hover:text-rose-500">
+                Remove
+              </button>
+            )}
+            <input ref={fileInputRef} type="file" accept="image/*" onChange={pickImage} className="hidden" />
+          </div>
+        )}
+        {imageError && <p className="text-xs text-rose-500">{imageError}</p>}
+        <button
+          type="button"
+          disabled={!!active}
+          onClick={() => onStart(plan.id)}
+          className="mt-1 rounded-xl bg-slate-900 px-3 py-1.5 text-sm font-semibold text-white transition hover:bg-slate-800 disabled:cursor-not-allowed disabled:opacity-50"
+        >
+          {active ? 'In progress' : completedCount > 0 ? 'Start again' : 'Start plan'}
+        </button>
+      </div>
+    </div>
+  );
+}
+
+// Downscales a picked image file to a reasonable cover-photo size and returns
+// a data URL — no server upload endpoint needed, it's stored right on the plan.
+function resizeImageToDataUrl(file, maxWidth = 960, quality = 0.82) {
+  return new Promise((resolve, reject) => {
+    const reader = new FileReader();
+    reader.onerror = () => reject(new Error('Could not read file.'));
+    reader.onload = () => {
+      const img = new Image();
+      img.onerror = () => reject(new Error('Could not decode image.'));
+      img.onload = () => {
+        const scale = Math.min(1, maxWidth / img.width);
+        const canvas = document.createElement('canvas');
+        canvas.width = Math.round(img.width * scale);
+        canvas.height = Math.round(img.height * scale);
+        canvas.getContext('2d').drawImage(img, 0, 0, canvas.width, canvas.height);
+        resolve(canvas.toDataURL('image/jpeg', quality));
+      };
+      img.src = reader.result;
+    };
+    reader.readAsDataURL(file);
+  });
+}
+
+const BOOK_PRESETS = [
+  ['All', ALL_BOOKS],
+  ['None', []],
+  ['Old Testament', OT_BOOKS],
+  ['New Testament', NT_BOOKS],
+  ['Gospels', GOSPELS],
+  ['Pentateuch', PENTATEUCH],
+  ['Psalms', ['PSA']],
+  ['Proverbs', ['PRO']],
+  ['Wisdom', WISDOM_BOOKS],
+];
+
+function CustomPlanBuilder({ initialValues, onSubmit, onCancel }) {
+  const [title, setTitle] = useState(initialValues?.title ?? '');
+  const [description, setDescription] = useState(initialValues?.description ?? '');
+  const [days, setDays] = useState(initialValues?.days ?? 30);
+  const [books, setBooks] = useState(initialValues?.books ?? []);
+  const [chapterRanges, setChapterRanges] = useState(initialValues?.chapterRanges ?? {});
+  const [image, setImage] = useState(initialValues?.image ?? null);
+  const [imageError, setImageError] = useState('');
+  const fileInputRef = useRef(null);
+  const isEditing = !!initialValues;
+
+  const toggleBook = (abbrev) => {
+    const isOn = books.includes(abbrev);
+    setBooks((prev) => (isOn ? prev.filter((b) => b !== abbrev) : [...prev, abbrev]));
+    if (isOn) {
+      setChapterRanges((prev) => {
+        if (!(abbrev in prev)) return prev;
+        const next = { ...prev };
+        delete next[abbrev];
+        return next;
+      });
+    }
+  };
+
+  const setChapterRange = (abbrev, key, value) => {
+    const total = CHAPTER_COUNTS[abbrev] ?? 1;
+    const clamped = Math.min(total, Math.max(1, Math.round(value) || 1));
+    setChapterRanges((prev) => ({
+      ...prev,
+      [abbrev]: { start: prev[abbrev]?.start ?? 1, end: prev[abbrev]?.end ?? total, [key]: clamped },
+    }));
+  };
+
+  const applyPreset = (list) => {
+    setBooks(list);
+    setChapterRanges({});
+  };
+
+  const pickImage = async (e) => {
+    const file = e.target.files?.[0];
+    e.target.value = '';
+    if (!file) return;
+    try {
+      setImageError('');
+      setImage(await resizeImageToDataUrl(file));
+    } catch {
+      setImageError("Couldn't use that image.");
+    }
+  };
+
+  const totalChapters = books.reduce((sum, b) => sum + bookChapterCount(b, chapterRanges), 0);
+  const canCreate = title.trim().length > 0 && totalChapters > 0 && days >= 1;
+
+  return (
+    <div className="rounded-2xl border border-rose-200 bg-white p-5 shadow-panel">
+      <h3 className="mb-3 text-sm font-semibold text-slate-900">{isEditing ? 'Edit reading plan' : 'New reading plan'}</h3>
+      <div className="grid gap-3 sm:grid-cols-2">
+        <label className="text-sm text-slate-600">
+          Title
+          <input
+            value={title}
+            onChange={(e) => setTitle(e.target.value)}
+            placeholder="e.g. Advent Readings"
+            className="mt-1 w-full rounded-xl border border-slate-300 px-3 py-2 text-sm shadow-sm focus:border-rose-500 focus:outline-none focus:ring-2 focus:ring-rose-200"
+          />
+        </label>
+        <label className="text-sm text-slate-600">
+          Days
+          <input
+            type="number"
+            min="1"
+            max="365"
+            value={days}
+            onChange={(e) => setDays(Number(e.target.value))}
+            className="mt-1 w-full rounded-xl border border-slate-300 px-3 py-2 text-sm shadow-sm focus:border-rose-500 focus:outline-none focus:ring-2 focus:ring-rose-200"
+          />
+        </label>
+      </div>
+      <label className="mt-3 block text-sm text-slate-600">
+        Description <span className="text-slate-400">(optional)</span>
+        <textarea
+          value={description}
+          onChange={(e) => setDescription(e.target.value)}
+          rows={2}
+          className="mt-1 w-full rounded-xl border border-slate-300 px-3 py-2 text-sm shadow-sm focus:border-rose-500 focus:outline-none focus:ring-2 focus:ring-rose-200"
+        />
+      </label>
+
+      <div className="mt-3">
+        <span className="text-sm text-slate-600">Cover photo <span className="text-slate-400">(optional)</span></span>
+        <div className="mt-1 flex items-center gap-3">
+          {image ? (
+            <img src={image} alt="" className="h-16 w-28 rounded-lg object-cover" />
+          ) : (
+            <div className="flex h-16 w-28 items-center justify-center rounded-lg bg-slate-100 text-2xl">🖼️</div>
+          )}
+          <button
+            type="button"
+            onClick={() => fileInputRef.current?.click()}
+            className="rounded-xl border border-slate-300 px-3 py-1.5 text-sm font-semibold text-slate-600 hover:bg-slate-50"
+          >
+            {image ? 'Change photo' : 'Choose photo'}
+          </button>
+          {image && (
+            <button type="button" onClick={() => setImage(null)} className="text-sm text-slate-400 hover:text-rose-500">
+              Remove
+            </button>
+          )}
+          <input ref={fileInputRef} type="file" accept="image/*" onChange={pickImage} className="hidden" />
+        </div>
+        {imageError && <p className="mt-1 text-xs text-rose-500">{imageError}</p>}
+      </div>
+
+      <div className="mt-4">
+        <div className="mb-2 flex flex-wrap items-center gap-2">
+          <span className="text-sm font-semibold text-slate-700">Books</span>
+          {BOOK_PRESETS.map(([label, list]) => (
+            <button
+              key={label}
+              type="button"
+              onClick={() => applyPreset(list)}
+              className="rounded-full border border-slate-300 px-2.5 py-1 text-xs font-semibold text-slate-600 hover:bg-slate-50"
+            >
+              {label}
+            </button>
+          ))}
+        </div>
+        <p className="mb-2 text-xs text-slate-400">
+          Check a book to include the whole thing, or narrow it to a chapter range with the fields that appear.
+        </p>
+        <div className="grid gap-3 sm:grid-cols-2">
+          <div className="max-h-56 overflow-y-auto rounded-xl border border-slate-200 p-2">
+            <p className="mb-1 px-1 text-xs font-semibold uppercase tracking-wide text-slate-400">Old Testament</p>
+            {bookOptions.filter((b) => OT_BOOKS.includes(b.abbrev)).map((b) => (
+              <BookRow
+                key={b.abbrev}
+                book={b}
+                checked={books.includes(b.abbrev)}
+                range={chapterRanges[b.abbrev]}
+                onToggle={() => toggleBook(b.abbrev)}
+                onRangeChange={(key, value) => setChapterRange(b.abbrev, key, value)}
+              />
+            ))}
+          </div>
+          <div className="max-h-56 overflow-y-auto rounded-xl border border-slate-200 p-2">
+            <p className="mb-1 px-1 text-xs font-semibold uppercase tracking-wide text-slate-400">New Testament</p>
+            {bookOptions.filter((b) => NT_BOOKS.includes(b.abbrev)).map((b) => (
+              <BookRow
+                key={b.abbrev}
+                book={b}
+                checked={books.includes(b.abbrev)}
+                range={chapterRanges[b.abbrev]}
+                onToggle={() => toggleBook(b.abbrev)}
+                onRangeChange={(key, value) => setChapterRange(b.abbrev, key, value)}
+              />
+            ))}
+          </div>
+        </div>
+        <p className="mt-2 text-xs text-slate-400">
+          {books.length} book{books.length !== 1 ? 's' : ''} selected · {totalChapters} chapters
+          {days > 0 && totalChapters > 0 && ` · ~${(totalChapters / days).toFixed(1)} ch/day`}
+        </p>
+        {isEditing && (
+          books.join() !== initialValues.books.join()
+          || Number(days) !== initialValues.days
+          || JSON.stringify(chapterRanges) !== JSON.stringify(initialValues.chapterRanges ?? {})
+        ) && (
+          <p className="mt-2 text-xs text-amber-600">
+            Changing the books, chapters, or day count restarts progress for any run of this plan already in your list.
+          </p>
+        )}
+      </div>
+
+      <div className="mt-4 flex items-center gap-3">
+        <button
+          type="button"
+          disabled={!canCreate}
+          onClick={() => onSubmit({ title, description, days, books, chapterRanges, image })}
+          className="rounded-xl bg-rose-600 px-4 py-2 text-sm font-semibold text-white transition hover:bg-rose-500 disabled:cursor-not-allowed disabled:opacity-50"
+        >
+          {isEditing ? 'Save changes' : 'Create plan'}
+        </button>
+        <button type="button" onClick={onCancel} className="text-sm text-slate-400 hover:text-slate-600">Cancel</button>
+      </div>
+    </div>
+  );
+}
+
+// One book row in the custom-plan builder: a checkbox, and — once checked — a
+// "ch. X–Y" chapter-range pair that defaults to the whole book.
+function BookRow({ book, checked, range, onToggle, onRangeChange }) {
+  const total = CHAPTER_COUNTS[book.abbrev] ?? 1;
+  return (
+    <label className="flex items-center gap-2 rounded-lg px-1 py-1 text-sm hover:bg-slate-50">
+      <input
+        type="checkbox"
+        checked={checked}
+        onChange={onToggle}
+        className="h-4 w-4 shrink-0 rounded border-slate-300 text-rose-600 focus:ring-rose-500"
+      />
+      <span className="flex-1">{book.name}</span>
+      {checked && total > 1 && (
+        <span className="flex shrink-0 items-center gap-1 text-xs text-slate-500" onClick={(e) => e.preventDefault()}>
+          ch.
+          <input
+            type="number"
+            min={1}
+            max={total}
+            value={range?.start ?? 1}
+            onChange={(e) => onRangeChange('start', e.target.value)}
+            className="w-11 rounded border border-slate-300 px-1 py-0.5 text-center"
+          />
+          –
+          <input
+            type="number"
+            min={1}
+            max={total}
+            value={range?.end ?? total}
+            onChange={(e) => onRangeChange('end', e.target.value)}
+            className="w-11 rounded border border-slate-300 px-1 py-0.5 text-center"
+          />
+          <span className="text-slate-400">/{total}</span>
+        </span>
+      )}
+    </label>
+  );
+}

src/pages/SettingsPage.jsx

@@ -7,6 +7,7 @@ import {
   disableMfa,
   changePassword,
   updateProfile,
+  updateReminderSettings,
 } from '../syncService.js';
 
 export default function SettingsPage() {
@@ -28,6 +29,15 @@ export default function SettingsPage() {
   const [changePasswordBusy, setChangePasswordBusy] = useState(false);
   const [changePasswordError, setChangePasswordError] = useState('');
   const [changePasswordSaved, setChangePasswordSaved] = useState(false);
+  const [reminderForm, setReminderForm] = useState({
+    reminderEnabled: authUser?.reminderEnabled ?? false,
+    ntfyUrl: authUser?.ntfyUrl ?? '',
+    ntfyTopic: authUser?.ntfyTopic ?? '',
+    reminderTime: authUser?.reminderTime ?? '07:00',
+  });
+  const [reminderBusy, setReminderBusy] = useState(false);
+  const [reminderError, setReminderError] = useState('');
+  const [reminderSaved, setReminderSaved] = useState(false);
 
   const startSetup = async () => {
     setMfaSetupError('');
@@ -107,6 +117,21 @@ export default function SettingsPage() {
     window.setTimeout(() => setPodcastNameSaved(false), 2500);
   };
 
+  const submitReminderSettings = async (e) => {
+    e.preventDefault();
+    setReminderError('');
+    setReminderBusy(true);
+    const result = await updateReminderSettings(reminderForm);
+    setReminderBusy(false);
+    if (!result.ok) {
+      setReminderError(result.error ?? 'Failed to save reminder settings.');
+      return;
+    }
+    setAuthUser((u) => ({ ...u, ...result.data }));
+    setReminderSaved(true);
+    window.setTimeout(() => setReminderSaved(false), 2500);
+  };
+
   return (
     <div className="min-h-screen bg-slate-50 text-slate-900">
       <header className="border-b border-slate-200 bg-slate-900 text-white shadow-sm">
@@ -217,6 +242,71 @@ export default function SettingsPage() {
           {podcastNameSaved && <p className="text-sm text-emerald-600">Saved.</p>}
         </section>
 
+        <section className="rounded-3xl border border-slate-200 bg-white p-8 shadow-panel space-y-4">
+          <div>
+            <h2 className="text-lg font-semibold text-slate-900">Reading reminders</h2>
+            <p className="text-sm text-slate-500">
+              Get a daily nudge via{' '}
+              <a href="https://ntfy.sh" target="_blank" rel="noreferrer" className="text-sky-600 underline">ntfy.sh</a>
+              {' '}— a free push-notification service. Install the ntfy app (or open{' '}
+              <span className="font-mono text-xs">{(reminderForm.ntfyUrl || 'https://ntfy.sh').replace(/\/+$/, '')}/{reminderForm.ntfyTopic || '<topic>'}</span>
+              {' '}in a browser) and subscribe to the topic below to receive it.
+            </p>
+          </div>
+          <form onSubmit={submitReminderSettings} className="space-y-3">
+            <label className="flex items-center gap-2 text-sm font-medium text-slate-700">
+              <input
+                type="checkbox"
+                checked={reminderForm.reminderEnabled}
+                onChange={(e) => setReminderForm((f) => ({ ...f, reminderEnabled: e.target.checked }))}
+                className="h-4 w-4 rounded border-slate-300 text-sky-600 focus:ring-sky-500"
+              />
+              Enable daily reading reminder
+            </label>
+            <div className="grid gap-3 sm:grid-cols-2">
+              <label className="block max-w-xs text-sm font-medium text-slate-700">
+                Topic
+                <input
+                  type="text"
+                  placeholder="e.g. nate-bible-reading-8f2"
+                  value={reminderForm.ntfyTopic}
+                  onChange={(e) => setReminderForm((f) => ({ ...f, ntfyTopic: e.target.value }))}
+                  className="mt-1 block w-full rounded-xl border border-slate-300 px-3 py-2 text-sm shadow-sm focus:border-sky-500 focus:outline-none focus:ring-2 focus:ring-sky-200"
+                />
+                <span className="mt-1 block text-xs text-slate-400">Pick something unique — anyone who knows it can subscribe.</span>
+              </label>
+              <label className="block max-w-xs text-sm font-medium text-slate-700">
+                Reminder time
+                <input
+                  type="time"
+                  value={reminderForm.reminderTime}
+                  onChange={(e) => setReminderForm((f) => ({ ...f, reminderTime: e.target.value }))}
+                  className="mt-1 block w-full rounded-xl border border-slate-300 px-3 py-2 text-sm shadow-sm focus:border-sky-500 focus:outline-none focus:ring-2 focus:ring-sky-200"
+                />
+              </label>
+            </div>
+            <label className="block max-w-xs text-sm font-medium text-slate-700">
+              ntfy server <span className="text-slate-400">(optional — defaults to ntfy.sh)</span>
+              <input
+                type="text"
+                placeholder="https://ntfy.sh"
+                value={reminderForm.ntfyUrl}
+                onChange={(e) => setReminderForm((f) => ({ ...f, ntfyUrl: e.target.value }))}
+                className="mt-1 block w-full rounded-xl border border-slate-300 px-3 py-2 text-sm shadow-sm focus:border-sky-500 focus:outline-none focus:ring-2 focus:ring-sky-200"
+              />
+            </label>
+            {reminderError && <p className="text-sm text-rose-600">{reminderError}</p>}
+            {reminderSaved && <p className="text-sm text-emerald-600">Saved.</p>}
+            <button
+              type="submit"
+              disabled={reminderBusy}
+              className="rounded-md bg-sky-500 px-4 py-2 text-sm font-medium text-white shadow-sm transition hover:bg-sky-400 disabled:cursor-not-allowed disabled:bg-slate-300"
+            >
+              {reminderBusy ? 'Saving…' : 'Save'}
+            </button>
+          </form>
+        </section>
+
         <section className="rounded-3xl border border-slate-200 bg-white p-8 shadow-panel space-y-4">
           <div>
             <h2 className="text-lg font-semibold text-slate-900">Two-factor authentication</h2>

src/syncService.js

@@ -65,6 +65,20 @@ export async function deleteRemoteProject(id) {
   return request('DELETE', `/projects/${id}`);
 }
 
+// ---------------------------------------------------------------------------
+// Reading plan progress
+// ---------------------------------------------------------------------------
+
+/** Returns the signed-in user's whole reading-plan progress list. */
+export async function getRemoteReadingProgress() {
+  return request('GET', '/reading-plans');
+}
+
+/** Overwrites the signed-in user's whole reading-plan progress list. */
+export async function saveRemoteReadingProgress(progress) {
+  return request('PUT', '/reading-plans', progress);
+}
+
 // ---------------------------------------------------------------------------
 // Read-only share links
 // ---------------------------------------------------------------------------
@@ -145,6 +159,11 @@ export async function changePassword(currentPassword, newPassword) {
   return request('POST', '/auth/change-password', { currentPassword, newPassword });
 }
 
+/** Sets the daily reading reminder sent via ntfy.sh ({ reminderEnabled, ntfyUrl, ntfyTopic, reminderTime }). */
+export async function updateReminderSettings(settings) {
+  return request('PATCH', '/auth/reminder-settings', settings);
+}
+
 // ---------------------------------------------------------------------------
 // Two-factor auth setup (Account Settings page)
 // ---------------------------------------------------------------------------

src/utils/readingPlans.js

@@ -0,0 +1,296 @@
+// Reading plan catalog — pure data + helpers. No React, no storage; progress
+// tracking (and custom plan storage) lives in useReadingPlans.js.
+import { bookOptions, CHAPTER_COUNTS, NT_BOOK_NUMBER } from './bibleUtils.jsx';
+
+const BOOK_NAME_BY_ABBREV = Object.fromEntries(bookOptions.map((b) => [b.abbrev, b.name]));
+
+export const ALL_BOOKS = bookOptions.map((b) => b.abbrev);
+export const NT_BOOKS = ALL_BOOKS.filter((a) => NT_BOOK_NUMBER[a]);
+export const OT_BOOKS = ALL_BOOKS.filter((a) => !NT_BOOK_NUMBER[a]);
+export const GOSPELS = ['MAT', 'MRK', 'LUK', 'JHN'];
+export const PENTATEUCH = ['GEN', 'EXO', 'LEV', 'NUM', 'DEU'];
+export const WISDOM_BOOKS = ['JOB', 'PSA', 'PRO', 'ECC', 'SNG'];
+
+// Flattens an ordered list of book abbreviations into one chapter-by-chapter list.
+// `chapterRanges` (optional) is { [bookAbbrev]: { start, end } } — a custom plan's
+// per-book override to read only part of a book instead of the whole thing.
+function chaptersFor(bookAbbrevs, chapterRanges) {
+  const list = [];
+  for (const book of bookAbbrevs) {
+    const total = CHAPTER_COUNTS[book] ?? 0;
+    const range = chapterRanges?.[book];
+    const start = Math.max(1, range?.start ?? 1);
+    const end = Math.min(total, range?.end ?? total);
+    for (let chapter = start; chapter <= end; chapter += 1) list.push({ book, chapter });
+  }
+  return list;
+}
+
+// Chapter count a book contributes to a plan, honoring a chapter-range override.
+export function bookChapterCount(bookAbbrev, chapterRanges) {
+  const total = CHAPTER_COUNTS[bookAbbrev] ?? 0;
+  const range = chapterRanges?.[bookAbbrev];
+  if (!range) return total;
+  return Math.max(0, Math.min(total, range.end) - Math.max(1, range.start) + 1);
+}
+
+// Splits a flat chapter list into `days` nearly-equal, contiguous slices.
+function distributeIntoDays(chapters, days) {
+  const total = chapters.length;
+  const schedule = [];
+  for (let d = 0; d < days; d += 1) {
+    const start = Math.round((d * total) / days);
+    const end = Math.round(((d + 1) * total) / days);
+    schedule.push(chapters.slice(start, end));
+  }
+  return schedule;
+}
+
+// Per-category color theme used for card accents/gradients when a plan has no cover image yet.
+export const CATEGORY_THEME = {
+  'Whole Bible': { gradient: 'from-indigo-500 to-violet-600', text: 'text-indigo-600', chip: 'bg-indigo-100 text-indigo-700' },
+  'New Testament': { gradient: 'from-sky-500 to-blue-600', text: 'text-sky-600', chip: 'bg-sky-100 text-sky-700' },
+  'Old Testament': { gradient: 'from-amber-500 to-orange-600', text: 'text-amber-600', chip: 'bg-amber-100 text-amber-700' },
+  Topical: { gradient: 'from-emerald-500 to-teal-600', text: 'text-emerald-600', chip: 'bg-emerald-100 text-emerald-700' },
+  'My Plans': { gradient: 'from-rose-500 to-pink-600', text: 'text-rose-600', chip: 'bg-rose-100 text-rose-700' },
+};
+const DEFAULT_THEME = { gradient: 'from-slate-500 to-slate-700', text: 'text-slate-600', chip: 'bg-slate-100 text-slate-700' };
+
+export function themeForCategory(category) {
+  return CATEGORY_THEME[category] ?? DEFAULT_THEME;
+}
+
+// Static catalog. `image` points at an optional cover photo the user can drop into
+// public/plan-covers/ — see PIXABAY_SEARCH_LINKS below for where to find one. Cards
+// fall back to a colorful gradient + icon when the file isn't there.
+export const READING_PLANS = [
+  {
+    id: 'bible-year',
+    title: 'Whole Bible in a Year',
+    description: 'Read straight through Genesis to Revelation at a steady, sustainable pace.',
+    category: 'Whole Bible',
+    icon: '📖',
+    image: '/plan-covers/bible-year.jpg',
+    days: 365,
+    books: ALL_BOOKS,
+  },
+  {
+    id: 'bible-90',
+    title: 'Whole Bible in 90 Days',
+    description: 'An intensive read of the entire Bible, cover to cover.',
+    category: 'Whole Bible',
+    icon: '⏳',
+    image: '/plan-covers/bible-90.jpg',
+    days: 90,
+    books: ALL_BOOKS,
+  },
+  {
+    id: 'nt-90',
+    title: 'New Testament in 90 Days',
+    description: 'Matthew through Revelation in three months.',
+    category: 'New Testament',
+    icon: '✝️',
+    image: '/plan-covers/nt-90.jpg',
+    days: 90,
+    books: NT_BOOKS,
+  },
+  {
+    id: 'nt-30',
+    title: 'New Testament in 30 Days',
+    description: 'A fast-paced trip through the whole New Testament.',
+    category: 'New Testament',
+    icon: '⚡',
+    image: '/plan-covers/nt-30.jpg',
+    imageFocus: '50% 35%',
+    days: 30,
+    books: NT_BOOKS,
+  },
+  {
+    id: 'gospels-30',
+    title: 'The Gospels in 30 Days',
+    description: 'Matthew, Mark, Luke, and John — the life of Jesus in a month.',
+    category: 'Topical',
+    icon: '🕊️',
+    image: '/plan-covers/gospels-30.jpg',
+    days: 30,
+    books: GOSPELS,
+  },
+  {
+    id: 'psalms-30',
+    title: 'Psalms in 30 Days',
+    description: 'Pray and read through all 150 Psalms in a month.',
+    category: 'Topical',
+    icon: '🎵',
+    image: '/plan-covers/psalms-30.jpg',
+    days: 30,
+    books: ['PSA'],
+  },
+  {
+    id: 'proverbs-31',
+    title: 'Proverbs in 31 Days',
+    description: 'One chapter a day — a natural fit for any month.',
+    category: 'Topical',
+    icon: '💡',
+    image: '/plan-covers/proverbs-31.jpg',
+    days: 31,
+    books: ['PRO'],
+  },
+  {
+    id: 'pentateuch-60',
+    title: 'The Pentateuch in 60 Days',
+    description: 'Genesis through Deuteronomy — the foundation of the Old Testament.',
+    category: 'Old Testament',
+    icon: '🏜️',
+    image: '/plan-covers/pentateuch-60.jpg',
+    days: 60,
+    books: PENTATEUCH,
+  },
+  {
+    id: 'wisdom-40',
+    title: 'Wisdom Literature in 40 Days',
+    description: 'Job, Psalms, Proverbs, Ecclesiastes, and Song of Songs.',
+    category: 'Topical',
+    icon: '🦉',
+    image: '/plan-covers/wisdom-40.jpg',
+    imageFocus: '50% 32%',
+    days: 40,
+    books: WISDOM_BOOKS,
+  },
+];
+
+// Pixabay *search* pages (not specific photos — nothing here is a guessed asset URL)
+// for each built-in plan, so a cover photo can be picked and dropped into
+// public/plan-covers/<id>.jpg. Landscape, ~1200px wide, works best.
+export const PIXABAY_SEARCH_LINKS = {
+  'bible-year': 'https://pixabay.com/images/search/open%20bible/',
+  'bible-90': 'https://pixabay.com/images/search/bible%20pages/',
+  'nt-90': 'https://pixabay.com/images/search/cross%20sunrise/',
+  'nt-30': 'https://pixabay.com/images/search/cross/',
+  'gospels-30': 'https://pixabay.com/images/search/jesus/',
+  'psalms-30': 'https://pixabay.com/images/search/harp/',
+  'proverbs-31': 'https://pixabay.com/images/search/candle%20light/',
+  'pentateuch-60': 'https://pixabay.com/images/search/desert%20mountain/',
+  'wisdom-40': 'https://pixabay.com/images/search/owl%20book/',
+};
+
+const PLAN_BY_ID = Object.fromEntries(READING_PLANS.map((p) => [p.id, p]));
+const scheduleCache = new Map();
+
+export function getPlan(planId) {
+  return PLAN_BY_ID[planId] ?? null;
+}
+
+// Registers/updates/removes user-created plans in the lookup used by getPlan/getPlanSchedule.
+// Called by useReadingPlans() whenever the custom-plans list changes.
+export function registerCustomPlans(customPlans) {
+  for (const key of Object.keys(PLAN_BY_ID)) {
+    if (PLAN_BY_ID[key].custom && !customPlans.some((cp) => cp.id === key)) {
+      delete PLAN_BY_ID[key];
+      scheduleCache.delete(key);
+    }
+  }
+  for (const cp of customPlans) {
+    PLAN_BY_ID[cp.id] = { category: 'My Plans', icon: '✨', ...cp, custom: true };
+    scheduleCache.delete(cp.id);
+  }
+}
+
+// Returns an array of `plan.days` entries, each an array of { book, chapter } refs.
+export function getPlanSchedule(planId) {
+  if (scheduleCache.has(planId)) return scheduleCache.get(planId);
+  const plan = getPlan(planId);
+  if (!plan) return [];
+  const schedule = distributeIntoDays(chaptersFor(plan.books, plan.chapterRanges), plan.days);
+  scheduleCache.set(planId, schedule);
+  return schedule;
+}
+
+// Groups consecutive same-book chapters and renders "Genesis 1–3; Exodus 1" style text.
+export function formatDayReadings(dayRefs) {
+  if (!dayRefs || dayRefs.length === 0) return '';
+  const groups = [];
+  for (const ref of dayRefs) {
+    const last = groups[groups.length - 1];
+    if (last && last.book === ref.book && ref.chapter === last.end + 1) {
+      last.end = ref.chapter;
+    } else {
+      groups.push({ book: ref.book, start: ref.chapter, end: ref.chapter });
+    }
+  }
+  return groups
+    .map((g) => {
+      const name = BOOK_NAME_BY_ABBREV[g.book] ?? g.book;
+      return g.start === g.end ? `${name} ${g.start}` : `${name} ${g.start}–${g.end}`;
+    })
+    .join('; ');
+}
+
+// The first chapter reference of a day's reading — where "Read" should jump to.
+export function firstRefOfDay(dayRefs) {
+  return dayRefs && dayRefs.length > 0 ? dayRefs[0] : null;
+}
+
+// Index (0-based) of the first day not yet marked complete, or null if the plan is finished.
+export function nextUnreadDayIndex(plan, completedDays) {
+  for (let i = 0; i < plan.days; i += 1) {
+    if (!completedDays.includes(i)) return i;
+  }
+  return null;
+}
+
+// Index (0-based) of the day whose reading includes this exact book/chapter, or -1.
+// Used by the reader to offer "mark today's plan reading done" inline.
+export function findDayIndexForRef(schedule, bookAbbrev, chapter) {
+  for (let i = 0; i < schedule.length; i += 1) {
+    if (schedule[i].some((r) => r.book === bookAbbrev && r.chapter === chapter)) return i;
+  }
+  return -1;
+}
+
+// ---------------------------------------------------------------------------
+// Streaks & pace — driven by a plain list of 'YYYY-MM-DD' local-date strings
+// (one per calendar day something was marked read, across all plans).
+// ---------------------------------------------------------------------------
+
+export function localDateString(ts = Date.now()) {
+  const d = new Date(ts);
+  return `${d.getFullYear()}-${String(d.getMonth() + 1).padStart(2, '0')}-${String(d.getDate()).padStart(2, '0')}`;
+}
+
+// { current, longest } consecutive-calendar-day streak. "current" stays alive
+// through today even if today hasn't been logged yet (so it doesn't drop to 0
+// the moment you wake up) but breaks once a full day is skipped.
+export function computeStreak(activityDates) {
+  if (!activityDates || activityDates.length === 0) return { current: 0, longest: 0 };
+  const daySet = new Set(activityDates);
+  const DAY_MS = 86400000;
+
+  const sorted = Array.from(daySet).sort();
+  let longest = 0;
+  let run = 0;
+  let prevTime = null;
+  for (const ds of sorted) {
+    const t = new Date(`${ds}T00:00:00`).getTime();
+    run = prevTime != null && t - prevTime === DAY_MS ? run + 1 : 1;
+    longest = Math.max(longest, run);
+    prevTime = t;
+  }
+
+  let current = 0;
+  const cursor = new Date();
+  cursor.setHours(0, 0, 0, 0);
+  if (!daySet.has(localDateString(cursor.getTime()))) cursor.setDate(cursor.getDate() - 1);
+  while (daySet.has(localDateString(cursor.getTime()))) {
+    current += 1;
+    cursor.setDate(cursor.getDate() - 1);
+  }
+  return { current, longest };
+}
+
+// How many days a plan's pace has fallen behind, assuming one plan-day per
+// calendar day since it was started. Purely informational — nothing enforces it.
+export function daysBehindPace(plan, progress) {
+  const elapsedDays = Math.floor((Date.now() - progress.startedAt) / 86400000);
+  const expectedDayIndex = Math.min(plan.days - 1, Math.max(0, elapsedDays));
+  return Math.max(0, expectedDayIndex - progress.completedDays.length);
+}