stuff

data/admin-content-draft.json

@@ -85,7 +85,12 @@
               "Why does Paul begin with grace and peace?",
               "What tone does this create for the rest of the study?"
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@@ -117,6 +124,8 @@
               "What does Paul ask God to produce?",
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@@ -165,6 +178,8 @@
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@@ -229,6 +250,8 @@
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 }

data/admin-content.json

@@ -85,7 +85,12 @@
               "Why does Paul begin with grace and peace?",
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             ],
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@@ -608,6 +676,8 @@
           "What does Paul want the believers to experience?",
           "Why does he emphasize encouragement and unity?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-02-01T00:00:00Z"
       },
       {
@@ -624,6 +694,8 @@
           "What does it mean to continue in Christ?",
           "What kinds of deception should believers watch for?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-02-15T00:00:00Z"
       },
       {
@@ -640,6 +712,8 @@
           "Why is fullness in Christ such an important correction?",
           "How does this guard against spiritual insecurity?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-03-01T00:00:00Z"
       },
       {
@@ -656,6 +730,8 @@
           "What changes because of Christ’s work here?",
           "How does victory over the powers encourage believers today?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-03-15T00:00:00Z"
       },
       {
@@ -672,6 +748,8 @@
           "What do shadows and substance mean here?",
           "Where do believers still feel pressure from external judgment?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-03-29T00:00:00Z"
       },
       {
@@ -688,6 +766,8 @@
           "How does Paul describe false spirituality?",
           "Why is connection to Christ essential?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-04-12T00:00:00Z"
       },
       {
@@ -704,6 +784,8 @@
           "Why do human regulations fail to transform the heart?",
           "What does real spiritual change require?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-04-26T00:00:00Z"
       },
       {
@@ -720,6 +802,8 @@
           "What does it mean to seek the things above?",
           "How does hidden life in Christ shape daily priorities?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-05-10T00:00:00Z"
       },
       {
@@ -736,6 +820,8 @@
           "Which old patterns does Paul name?",
           "Why is decisive change necessary?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-05-24T00:00:00Z"
       },
       {
@@ -752,6 +838,8 @@
           "What does renewal in Christ produce?",
           "How does this reshape how believers see one another?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-06-07T00:00:00Z"
       },
       {
@@ -768,6 +856,8 @@
           "Which virtues are most needed in your context?",
           "How does love bind these virtues together?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-06-21T00:00:00Z"
       },
       {
@@ -784,6 +874,8 @@
           "What does it look like for Christ’s peace to rule?",
           "How can the word of Christ dwell richly in a church family?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-07-05T00:00:00Z"
       },
       {
@@ -800,6 +892,8 @@
           "How do these instructions reflect Christ’s lordship?",
           "Which relationship is most challenging to apply today?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-07-19T00:00:00Z"
       },
       {
@@ -816,6 +910,8 @@
           "How does serving the Lord reshape everyday work?",
           "What does Paul say about fairness and accountability?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-08-02T00:00:00Z"
       },
       {
@@ -832,6 +928,8 @@
           "Why does Paul remind masters of their heavenly Master?",
           "What does fairness look like in this context?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-08-16T00:00:00Z"
       },
       {
@@ -848,6 +946,8 @@
           "How are prayer and witness connected here?",
           "What does gracious speech look like in real life?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-08-30T00:00:00Z"
       },
       {
@@ -864,6 +964,8 @@
           "Why do these messengers matter to the letter?",
           "What does this tell us about trusted coworkers?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-09-13T00:00:00Z"
       },
       {
@@ -880,6 +982,8 @@
           "What stands out about Paul’s coworkers?",
           "How does shared ministry strengthen the church?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-09-27T00:00:00Z"
       },
       {
@@ -896,6 +1000,8 @@
           "What final responsibility does Paul place on the church?",
           "How does the closing reinforce the letter’s themes?"
         ],
+        "checkpointPrompt": "",
+        "checkpointQuestions": [],
         "releasedAt": "2027-10-11T00:00:00Z"
       }
     ],
@@ -1069,5 +1175,5 @@
       ]
     }
   },
-  "updatedAt": "2026-06-01T17:25:41.133Z"
+  "updatedAt": "2026-06-02T17:54:06.010Z"
 }

data/questions.json

@@ -98,5 +98,5 @@
       "topic": "Faith & Life"
     }
   ],
-  "updatedAt": "2026-06-01T17:25:41.133Z"
+  "updatedAt": "2026-06-02T17:54:06.010Z"
 }

data/study-community.json

@@ -0,0 +1,50 @@
+{
+  "posts": [
+    {
+      "id": "fd6f2d9c-8abc-43b2-8e93-c58c0cb1ff7b",
+      "studySlug": "colossians",
+      "sectionId": "",
+      "authorUserId": "3307bdd7-a770-4fad-a28e-cf2d0c2a6e34",
+      "authorName": "Test Student",
+      "message": "reading",
+      "createdAt": "2026-06-02T17:41:48.684Z",
+      "replies": []
+    },
+    {
+      "id": "001f2545-e1ee-4748-902b-5da5c47554bb",
+      "studySlug": "colossians",
+      "sectionId": "",
+      "authorUserId": "3307bdd7-a770-4fad-a28e-cf2d0c2a6e34",
+      "authorName": "Test Student",
+      "message": "sool",
+      "createdAt": "2026-06-02T17:41:41.608Z",
+      "replies": []
+    },
+    {
+      "id": "c40e4c10-47a3-42e8-88bd-78116af5babe",
+      "studySlug": "colossians",
+      "sectionId": "",
+      "authorUserId": "3307bdd7-a770-4fad-a28e-cf2d0c2a6e34",
+      "authorName": "Test Student",
+      "message": "test",
+      "createdAt": "2026-06-02T17:41:16.795Z",
+      "replies": [
+        {
+          "id": "efe0bf3d-66e8-4dad-98c1-2e8c742e3120",
+          "authorUserId": "3307bdd7-a770-4fad-a28e-cf2d0c2a6e34",
+          "authorName": "Test Student",
+          "message": "test",
+          "createdAt": "2026-06-02T17:41:25.003Z"
+        },
+        {
+          "id": "1d6c3bd1-5ada-4f98-8ca3-5ed15bd00a68",
+          "authorUserId": "3307bdd7-a770-4fad-a28e-cf2d0c2a6e34",
+          "authorName": "Test Student",
+          "message": "test",
+          "createdAt": "2026-06-02T17:41:34.406Z"
+        }
+      ]
+    }
+  ],
+  "updatedAt": "2026-06-02T17:41:48.685Z"
+}

data/study-notes/3307bdd7-a770-4fad-a28e-cf2d0c2a6e34.json

@@ -0,0 +1,3 @@
+{
+  "colossians--1-1-2": "test....teset"
+}

data/study-progress/3307bdd7-a770-4fad-a28e-cf2d0c2a6e34.json

@@ -0,0 +1,16 @@
+{
+  "byStudy": {
+    "colossians": {
+      "completedSectionIds": [
+        "1-1-2"
+      ],
+      "quizAnswers": {
+        "1-1-2": [
+          "test",
+          "test"
+        ]
+      }
+    }
+  },
+  "updatedAt": "2026-06-02T17:53:29.839Z"
+}

data/study-users.json

@@ -6,19 +6,31 @@
       "passwordHash": "6500cc2e717d1d646f371dba1ec918d2f2f9fddbb8576c792df69a1f2340dcd9",
       "displayName": "Student Test",
       "subscribeNewsletter": false,
-      "pendingEmailChange": {
+      "avatarUrl": "",
-        "newEmail": "student.test+new@versebyverse.local",
+      "lastLoginAt": "2026-05-21T15:41:16.259Z"
-        "tokenHash": "ce4671e74a12302744878f690af5bdfbb087c83bebdb9183c1212eacaef25554",
-        "expiresAt": 1779464255007,
-        "requestedAt": "2026-05-21T15:37:35.007Z"
     },
+    {
+      "id": "3307bdd7-a770-4fad-a28e-cf2d0c2a6e34",
+      "username": "test.user@versebyverse.local",
+      "passwordHash": "fc89481d72dbea9af1d4f054faad48813227fa018da39259272dd27b5e493bb5",
+      "displayName": "Test Student",
+      "subscribeNewsletter": false,
+      "avatarUrl": "data:image/svg+xml;utf8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2288%22%20height%3D%2288%22%3E%3Crect%20width%3D%22100%25%22%20height%3D%22100%25%22%20rx%3D%2218%22%20ry%3D%2218%22%20fill%3D%22%2311100d%22%2F%3E%3Ctext%20x%3D%2250%25%22%20y%3D%2250%25%22%20dominant-baseline%3D%22middle%22%20text-anchor%3D%22middle%22%20font-size%3D%2256%22%3E%F0%9F%A6%81%3C%2Ftext%3E%3C%2Fsvg%3E",
+      "lastLoginAt": "2026-06-02T17:56:40.769Z",
+      "updatedAt": "2026-06-02T17:57:04.582Z",
       "enrolledStudySlugs": [
         "colossians"
-      ],
+      ]
-      "createdAt": "2026-05-21T13:05:00.000Z",
+    },
-      "updatedAt": "2026-05-21T18:41:10.857Z",
+    {
-      "lastLoginAt": "2026-05-21T15:41:16.259Z"
+      "id": "81c01e32-d94e-4e19-93ea-e5cd7644ea6a",
+      "username": "test.avatar@versebyverse.local",
+      "passwordHash": "fc89481d72dbea9af1d4f054faad48813227fa018da39259272dd27b5e493bb5",
+      "displayName": "Avatar Test",
+      "subscribeNewsletter": false,
+      "avatarUrl": "data:image/svg+xml;utf8,%3Csvg xmlns=\"http://www.w3.org/2000/svg\" width=\"88\" height=\"88\"%3E%3Crect width=\"100%\" height=\"100%\" rx=\"18\" ry=\"18\" fill=\"%2311100d\"/%3E%3Ctext x=\"50%\" y=\"50%\" dominant-baseline=\"middle\" text-anchor=\"middle\" font-size=\"56\"%3E🐱%3C/text%3E%3C/svg%3E",
+      "lastLoginAt": "2026-06-02T17:33:13.669Z"
     }
   ],
-  "updatedAt": "2026-05-21T18:41:10.858Z"
+  "updatedAt": "2026-06-02T17:57:04.583Z"
 }

server.js

@@ -635,6 +635,8 @@ let studyUsers = []
 let studyUsersWritePromise = Promise.resolve()
 const studyNotesCache = new Map() // userId -> { [sectionId]: string }
 const studyNotesWriteQueues = new Map() // userId -> Promise
+let studyReminders = { users: {}, updatedAt: new Date().toISOString() }
+let studyRemindersWritePromise = Promise.resolve()
 const studyProgressCache = new Map() // userId -> { byStudy: Record<string, { completedSectionIds: string[] }> }
 const studyProgressWriteQueues = new Map() // userId -> Promise
 let studyCommunityPosts = []
@@ -2244,6 +2246,28 @@ function normalizeStudyUsername(value) {
   return value.trim().toLowerCase()
 }
 
+function getStudyAvatarUrl(subject) {
+  let customAvatar = ''
+  let username = ''
+
+  if (subject && typeof subject === 'object') {
+    customAvatar = typeof subject.avatarUrl === 'string' ? subject.avatarUrl.trim() : ''
+    username = normalizeStudyUsername(subject.username)
+  } else if (typeof subject === 'string') {
+    username = normalizeStudyUsername(subject)
+  }
+
+  if (customAvatar) return customAvatar
+  if (!username) return ''
+  const hash = createHash('md5').update(username).digest('hex')
+  return `https://www.gravatar.com/avatar/${hash}?d=identicon&s=96`
+}
+
+function findStudyUserById(userId) {
+  if (typeof userId !== 'string' || !userId.trim()) return undefined
+  return studyUsers.find(user => user.id === userId)
+}
+
 function normalizeStudySlug(value) {
   if (typeof value !== 'string') return ''
   const trimmed = value.trim().toLowerCase()
@@ -2437,6 +2461,7 @@ function sanitizeStudyUsers(value) {
       : []
     const displayName = typeof item?.displayName === 'string' ? item.displayName.trim().slice(0, 80) : ''
     const subscribeNewsletter = item?.subscribeNewsletter !== false
+    const studyRemindersEnabled = item?.studyRemindersEnabled === true
     const pendingEmailChange = item?.pendingEmailChange && typeof item.pendingEmailChange === 'object' && !Array.isArray(item.pendingEmailChange)
       ? {
         newEmail: isValidStudyUsername(normalizeStudyUsername(item.pendingEmailChange.newEmail))
@@ -2454,13 +2479,11 @@ function sanitizeStudyUsers(value) {
       passwordHash,
       displayName,
       subscribeNewsletter,
-      pendingEmailChange: pendingEmailChange?.newEmail && pendingEmailChange?.tokenHash && pendingEmailChange.expiresAt > Date.now()
+      studyRemindersEnabled,
-        ? pendingEmailChange
-        : null,
       enrolledStudySlugs,
-      createdAt: typeof item?.createdAt === 'string' ? item.createdAt : new Date().toISOString(),
+      avatarUrl: typeof item?.avatarUrl === 'string' ? item.avatarUrl.trim() : '',
-      updatedAt: typeof item?.updatedAt === 'string' ? item.updatedAt : new Date().toISOString(),
       lastLoginAt: typeof item?.lastLoginAt === 'string' ? item.lastLoginAt : null,
+      pendingEmailChange,
     })
   }
 
@@ -2599,8 +2622,21 @@ function sanitizeStudyProgress(value) {
       const completedSectionIds = Array.isArray(studyData?.completedSectionIds)
         ? studyData.completedSectionIds.filter(id => typeof id === 'string' && id.trim()).map(id => id.trim())
         : []
+      const quizAnswers = studyData?.quizAnswers && typeof studyData?.quizAnswers === 'object' && !Array.isArray(studyData.quizAnswers)
+        ? Object.fromEntries(
+            Object.entries(studyData.quizAnswers)
+              .filter(([sectionId]) => typeof sectionId === 'string' && sectionId.trim())
+              .map(([sectionId, answers]) => [
+                sectionId.trim(),
+                Array.isArray(answers)
+                  ? answers.filter(answer => typeof answer === 'string').map(answer => answer.trim())
+                  : [],
+              ])
+          )
+        : {}
       progress.byStudy[studySlug.trim().toLowerCase()] = {
         completedSectionIds: Array.from(new Set(completedSectionIds)),
+        quizAnswers,
       }
     }
   }
@@ -2636,6 +2672,130 @@ function queueUserProgressWrite(userId) {
   studyProgressWriteQueues.set(userId, next)
 }
 
+function sanitizeStudyReminders(value) {
+  const defaultResult = { users: {}, updatedAt: new Date().toISOString() }
+  if (!value || typeof value !== 'object' || Array.isArray(value)) return defaultResult
+
+  const reminders = { users: {}, updatedAt: typeof value.updatedAt === 'string' ? value.updatedAt : new Date().toISOString() }
+  if (value.users && typeof value.users === 'object') {
+    for (const [userId, userData] of Object.entries(value.users)) {
+      if (typeof userId !== 'string' || !userId.trim()) continue
+      const studies = typeof userData === 'object' && userData && !Array.isArray(userData)
+        ? userData
+        : {}
+      const normalizedStudies = {}
+      for (const [studySlug, sectionIds] of Object.entries(studies)) {
+        if (typeof studySlug !== 'string' || !studySlug.trim()) continue
+        const ids = Array.isArray(sectionIds)
+          ? sectionIds.filter(id => typeof id === 'string' && id.trim()).map(id => id.trim())
+          : []
+        if (ids.length > 0) normalizedStudies[studySlug.trim().toLowerCase()] = Array.from(new Set(ids))
+      }
+      reminders.users[userId.trim()] = normalizedStudies
+    }
+  }
+
+  return reminders
+}
+
+async function loadStudyRemindersFromDisk() {
+  try {
+    const raw = await readFile(STUDY_REMINDERS_FILE, 'utf8')
+    studyReminders = sanitizeStudyReminders(JSON.parse(raw))
+  } catch {
+    studyReminders = { users: {}, updatedAt: new Date().toISOString() }
+  }
+}
+
+function queueStudyRemindersWrite() {
+  studyRemindersWritePromise = studyRemindersWritePromise
+    .then(async () => {
+      await mkdir(DATA_DIR, { recursive: true })
+      await writeFile(STUDY_REMINDERS_FILE, JSON.stringify(studyReminders, null, 2), 'utf8')
+    })
+    .catch(err => {
+      console.error('[study-reminders] failed to write reminders:', err)
+    })
+}
+
+async function sendStudyReminderEmail(email, displayName, studyTitle, sectionTitle, sectionReference, sectionUrl) {
+  if (!process.env.RESEND_API_KEY) return
+  try {
+    const resend = new Resend(process.env.RESEND_API_KEY)
+    const namePart = typeof displayName === 'string' && displayName.trim() ? displayName.trim() : 'friend'
+    const bodyHtml = (
+      `<p style="margin:0 0 16px;">Hi <strong style="color:#f0ead8;">${escapeHtml(namePart)}</strong>,</p>` +
+      `<p style="margin:0 0 16px;">A new study lesson is available in ${escapeHtml(studyTitle)}.</p>` +
+      `<p style="margin:0 0 16px;">${escapeHtml(sectionTitle)} (${escapeHtml(sectionReference)}) is now unlocked.</p>`
+    )
+    const footerHtml = `<p style="margin:0;font-family:Georgia,serif;font-size:12px;font-weight:300;color:#7a7060;line-height:1.6;">Grace and peace,<br/>Verse by Verse with Nate</p>`
+    const { error } = await resend.emails.send({
+      from: process.env.RESEND_FROM ?? 'Verse by Verse with Nate <hello@versebyversewithnate.us>',
+      to: [email],
+      subject: process.env.RESEND_REMINDER_SUBJECT ?? `New lesson available: ${sectionTitle}`,
+      text:
+        `Hi ${namePart},\n\n` +
+        `A new lesson is available in ${studyTitle}.\n` +
+        `${sectionTitle} (${sectionReference}) is now unlocked.\n\n` +
+        `Open it here: ${sectionUrl}\n\n` +
+        `Grace and peace,\nVerse by Verse with Nate`,
+      html: buildBrandedEmailHtml({
+        title: 'New Lesson Available',
+        eyebrow: 'Study Reminder',
+        bodyHtml,
+        ctaLabel: 'Open the Lesson',
+        ctaUrl: sectionUrl,
+        footerHtml,
+      }),
+    })
+    if (error) console.error('[study-reminder] send error:', error)
+  } catch (err) {
+    console.error('[study-reminder] send exception:', err)
+  }
+}
+
+async function scheduleStudyReminders() {
+  if (!cachedSiteContent) return
+  const now = new Date()
+  const userIds = studyUsers.filter(user => user.studyRemindersEnabled === true).map(user => user.id)
+  if (userIds.length === 0) return
+
+  for (const user of studyUsers) {
+    if (user.studyRemindersEnabled !== true) continue
+    const email = user.username
+    const displayName = user.displayName || email
+    const enrolledStudySlugs = Array.isArray(user.enrolledStudySlugs) ? user.enrolledStudySlugs : []
+    if (enrolledStudySlugs.length === 0) continue
+
+    const userSent = studyReminders.users[user.id] ?? {}
+    for (const studySlug of enrolledStudySlugs) {
+      const study = Array.isArray(cachedSiteContent.studies)
+        ? cachedSiteContent.studies.find(item => normalizeStudySlug(item?.slug) === studySlug)
+        : undefined
+      if (!study) continue
+
+      for (const section of study.sections ?? []) {
+        const sectionId = section.id
+        const releaseDate = getSectionReleaseDate(section)
+        if (!releaseDate) continue
+        if (releaseDate > now) continue
+        const sentForStudy = Array.isArray(userSent[studySlug]) ? userSent[studySlug] : []
+        if (sentForStudy.includes(sectionId)) continue
+
+        const hoursSinceRelease = (now.getTime() - releaseDate.getTime()) / (1000 * 60 * 60)
+        if (hoursSinceRelease > 24) continue
+
+        const sectionUrl = buildAbsoluteUrl(getCanonicalBaseUrl(), `/study/${study.slug}/${section.id}`)
+        await sendStudyReminderEmail(email, displayName, study.title, section.title, section.reference, sectionUrl)
+        userSent[studySlug] = [...sentForStudy, sectionId]
+        studyReminders.users[user.id] = userSent
+      }
+    }
+  }
+  studyReminders.updatedAt = new Date().toISOString()
+  queueStudyRemindersWrite()
+}
+
 async function migrateStudyNotesIfNeeded() {
   try {
     const raw = await readFile(STUDY_NOTES_FILE, 'utf8')
@@ -2779,6 +2939,8 @@ app.get('/api/study-auth/status', (req, res) => {
     username: user?.username ?? '',
     displayName: user?.displayName ?? '',
     subscribeNewsletter: user?.subscribeNewsletter !== false,
+    studyRemindersEnabled: user?.studyRemindersEnabled === true,
+    avatarUrl: user ? getStudyAvatarUrl(user) : '',
     enrolledStudySlugs: Array.isArray(user?.enrolledStudySlugs) ? user.enrolledStudySlugs : [],
   })
 })
@@ -2811,6 +2973,7 @@ app.post('/api/study-auth/signup', studyAuthRateLimiter, (req, res) => {
     passwordHash: hashStudyPassword(password),
     displayName,
     subscribeNewsletter: subscribe,
+    studyRemindersEnabled: false,
     pendingEmailChange: null,
     enrolledStudySlugs: [],
     createdAt: now,
@@ -2838,6 +3001,8 @@ app.post('/api/study-auth/signup', studyAuthRateLimiter, (req, res) => {
     username: user.username,
     displayName: user.displayName,
     subscribeNewsletter: user.subscribeNewsletter,
+    studyRemindersEnabled: user.studyRemindersEnabled === true,
+    avatarUrl: getStudyAvatarUrl(user.username),
     enrolledStudySlugs: user.enrolledStudySlugs,
   })
 })
@@ -2872,6 +3037,8 @@ app.post('/api/study-auth/login', studyAuthRateLimiter, (req, res) => {
     username: user.username,
     displayName: user.displayName ?? '',
     subscribeNewsletter: user.subscribeNewsletter !== false,
+    studyRemindersEnabled: user.studyRemindersEnabled === true,
+    avatarUrl: getStudyAvatarUrl(user.username),
     enrolledStudySlugs: user.enrolledStudySlugs ?? [],
   })
 })
@@ -3041,6 +3208,56 @@ app.post('/api/study-progress/:studySlug/:sectionId', requireStudyAuth, async (r
   res.json({ ok: true, studySlug, completedSectionIds: studyProgress.completedSectionIds })
 })
 
+app.get('/api/study-quiz/:studySlug/:sectionId', requireStudyAuth, async (req, res) => {
+  const user = req.studyUser
+  const studySlug = normalizeStudySlug(req.params.studySlug)
+  const sectionId = normalizeLessonSectionId(req.params.sectionId)
+  if (!studySlug || !sectionId) {
+    res.status(400).json({ message: 'Invalid study slug or section id.' })
+    return
+  }
+
+  if (!isStudyUserEnrolled(user, studySlug)) {
+    res.status(403).json({ message: 'Please enroll in this study to view quiz answers.' })
+    return
+  }
+
+  const progress = await loadUserProgress(user.id)
+  const quizAnswers = progress.byStudy[studySlug]?.quizAnswers?.[sectionId] ?? []
+  res.json({ studySlug, sectionId, answers: quizAnswers })
+})
+
+app.post('/api/study-quiz/:studySlug/:sectionId', requireStudyAuth, async (req, res) => {
+  const user = req.studyUser
+  const studySlug = normalizeStudySlug(req.params.studySlug)
+  const sectionId = normalizeLessonSectionId(req.params.sectionId)
+  if (!studySlug || !sectionId) {
+    res.status(400).json({ message: 'Invalid study slug or section id.' })
+    return
+  }
+
+  if (!isStudyUserEnrolled(user, studySlug)) {
+    res.status(403).json({ message: 'Please enroll in this study to save quiz answers.' })
+    return
+  }
+
+  const rawAnswers = req.body?.answers
+  const answers = Array.isArray(rawAnswers)
+    ? rawAnswers.map(answer => typeof answer === 'string' ? answer.trim() : '').filter(Boolean)
+    : []
+
+  const progress = await loadUserProgress(user.id)
+  const studyProgress = progress.byStudy[studySlug] ?? { completedSectionIds: [] }
+  studyProgress.quizAnswers = studyProgress.quizAnswers || {}
+  studyProgress.quizAnswers[sectionId] = answers
+  progress.byStudy[studySlug] = studyProgress
+  progress.updatedAt = new Date().toISOString()
+  studyProgressCache.set(user.id, progress)
+  queueUserProgressWrite(user.id)
+
+  res.json({ ok: true, studySlug, sectionId, answers })
+})
+
 app.delete('/api/study-progress/:studySlug/:sectionId', requireStudyAuth, async (req, res) => {
   const user = req.studyUser
   const studySlug = normalizeStudySlug(req.params.studySlug)
@@ -3084,6 +3301,23 @@ app.get('/api/study-community', requireStudyAuth, async (req, res) => {
     .filter(post => post.studySlug === studySlug)
     .sort((a, b) => new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime())
     .slice(0, 50)
+    .map(post => {
+      const author = findStudyUserById(post.authorUserId)
+      const enrichedPost = {
+        ...post,
+        authorAvatarUrl: getStudyAvatarUrl(author || post.authorName || ''),
+        replies: Array.isArray(post.replies)
+          ? post.replies.map(reply => {
+            const replyAuthor = findStudyUserById(reply.authorUserId)
+            return {
+              ...reply,
+              authorAvatarUrl: getStudyAvatarUrl(replyAuthor || reply.authorName || ''),
+            }
+          })
+          : [],
+      }
+      return enrichedPost
+    })
 
   res.json({
     studySlug,
@@ -3115,6 +3349,7 @@ app.post('/api/study-community/posts', requireStudyAuth, async (req, res) => {
     sectionId,
     authorUserId: user.id,
     authorName,
+    authorAvatarUrl: getStudyAvatarUrl(user.username),
     message,
     createdAt: now,
     replies: [],
@@ -3152,6 +3387,7 @@ app.post('/api/study-community/posts/:postId/replies', requireStudyAuth, async (
     id: randomUUID(),
     authorUserId: user.id,
     authorName: user.displayName?.trim() || user.username,
+    authorAvatarUrl: getStudyAvatarUrl(user.username),
     message,
     createdAt: new Date().toISOString(),
   }
@@ -3167,86 +3403,151 @@ app.post('/api/study-community/posts/:postId/replies', requireStudyAuth, async (
 app.get('/api/study-account/export-notes', requireStudyAuth, async (req, res) => {
   const user = req.studyUser
   const notes = await loadUserNotes(user.id)
+  const progress = await loadUserProgress(user.id)
 
-  // Build a lookup of sectionId -> { title, reference, studyTitle } from cached content
+  // Build a lookup of sectionId -> { title, reference, studyTitle, description } from cached content
   const sectionMeta = {}
   const content = cachedSiteContent
-  if (content) {
+  const studies = content && Array.isArray(content.studies) && content.studies.length > 0
-    const studies = Array.isArray(content.studies) && content.studies.length > 0
     ? content.studies
-      : [{ slug: 'colossians', title: 'Colossians: Rooted in Christ', sections: content.colossiansStudySections ?? [] }]
+    : [{ slug: 'colossians', title: 'Colossians: Rooted in Christ', description: '', sections: content?.colossiansStudySections ?? [] }]
+
   for (const study of studies) {
     for (const section of (study.sections ?? [])) {
       sectionMeta[`${study.slug}--${section.id}`] = {
         studyTitle: study.title,
+        studyDescription: typeof study.description === 'string' ? study.description : '',
         title: section.title,
         reference: section.reference,
-        }
+        studyQuestions: Array.isArray(section.studyQuestions) ? section.studyQuestions : [],
       }
     }
   }
 
-  // Group notes by study
+  const studyEntries = {}
-  const byStudy = {}
+
   for (const [noteKey, noteText] of Object.entries(notes)) {
     if (!noteText?.trim()) continue
     const dashIndex = noteKey.indexOf('--')
     const studySlug = dashIndex >= 0 ? noteKey.slice(0, dashIndex) : 'unknown'
-    if (!byStudy[studySlug]) byStudy[studySlug] = []
+    const sectionId = dashIndex >= 0 ? noteKey.slice(dashIndex + 2) : noteKey
-    byStudy[studySlug].push({ noteKey, noteText })
+    if (!studyEntries[studySlug]) studyEntries[studySlug] = {}
+    studyEntries[studySlug][sectionId] = studyEntries[studySlug][sectionId] || {}
+    studyEntries[studySlug][sectionId].noteText = noteText.trim()
   }
 
+  for (const [studySlug, studyProgress] of Object.entries(progress.byStudy)) {
+    const quizAnswersBySection = studyProgress.quizAnswers || {}
+    for (const [sectionId, answers] of Object.entries(quizAnswersBySection)) {
+      if (!Array.isArray(answers) || answers.length === 0) continue
+      if (!studyEntries[studySlug]) studyEntries[studySlug] = {}
+      studyEntries[studySlug][sectionId] = studyEntries[studySlug][sectionId] || {}
+      studyEntries[studySlug][sectionId].quizAnswers = answers.filter(answer => typeof answer === 'string' && answer.trim()).map(answer => answer.trim())
+    }
+  }
+
+  const studySlugs = Array.from(new Set([
+    ...Object.keys(studyEntries),
+    ...Object.values(studies).map(study => study.slug),
+  ]))
+
   const docChildren = [
-    new Paragraph({
+    new Paragraph({ text: 'Verse by Verse with Nate', heading: HeadingLevel.TITLE }),
-      text: 'My Study Notes',
+    new Paragraph({ text: 'My Study Export', heading: HeadingLevel.HEADING_1, spacing: { after: 240 } }),
-      heading: HeadingLevel.TITLE,
+    new Paragraph({ text: `Student: ${user.displayName || user.username}`, spacing: { after: 120 } }),
-    }),
+    new Paragraph({ text: `Exported ${new Date().toLocaleDateString('en-US', { month: 'long', day: 'numeric', year: 'numeric' })}`, italics: true, spacing: { after: 400 } }),
-    new Paragraph({
-      children: [new TextRun({ text: `Exported ${new Date().toLocaleDateString('en-US', { month: 'long', day: 'numeric', year: 'numeric' })}`, italics: true })],
-      spacing: { after: 400 },
-    }),
   ]
 
-  for (const [studySlug, entries] of Object.entries(byStudy)) {
+  for (const studySlug of studySlugs) {
-    const studyTitle = entries[0] ? (sectionMeta[entries[0].noteKey]?.studyTitle ?? studySlug) : studySlug
+    const study = studies.find(item => normalizeStudySlug(item?.slug) === studySlug)
+    const studyTitle = study?.title || studySlug
+    const studyDescription = typeof study?.description === 'string' ? study.description : ''
+    const sectionIds = studyEntries[studySlug] ? Object.keys(studyEntries[studySlug]) : []
+
+    if (sectionIds.length === 0) continue
+
     docChildren.push(
       new Paragraph({ text: studyTitle, heading: HeadingLevel.HEADING_1, spacing: { before: 400 } }),
     )
-    for (const { noteKey, noteText } of entries) {
+    if (studyDescription) {
-      const meta = sectionMeta[noteKey]
-      const lessonTitle = meta?.title ?? noteKey
-      const reference = meta?.reference ?? ''
       docChildren.push(
-        new Paragraph({ text: lessonTitle, heading: HeadingLevel.HEADING_2, spacing: { before: 240 } }),
+        new Paragraph({ text: studyDescription, spacing: { after: 240 } }),
-      )
-      if (reference) {
-        docChildren.push(
-          new Paragraph({
-            children: [new TextRun({ text: reference, italics: true, color: '555555' })],
-            spacing: { after: 120 },
-          }),
       )
     }
-      for (const line of noteText.split('\n')) {
+    const noteCount = sectionIds.filter(sectionId => studyEntries[studySlug][sectionId].noteText).length
+    const quizCount = sectionIds.filter(sectionId => Array.isArray(studyEntries[studySlug][sectionId].quizAnswers) && studyEntries[studySlug][sectionId].quizAnswers.length > 0).length
     docChildren.push(
-          new Paragraph({ text: line.trim(), spacing: { after: 80 } }),
+      new Paragraph({ text: `Notes: ${noteCount} | Quiz sections: ${quizCount}`, italics: true, spacing: { after: 240 } }),
     )
+
+    const orderedSectionIds = study?.sections?.map(section => section.id).filter(id => sectionIds.includes(id)) ?? sectionIds
+    for (const sectionId of orderedSectionIds) {
+      const entry = studyEntries[studySlug][sectionId]
+      if (!entry) continue
+      const meta = sectionMeta[`${studySlug}--${sectionId}`] || { title: sectionId, reference: '' }
+      docChildren.push(
+        new Paragraph({ text: meta.title, heading: HeadingLevel.HEADING_2, spacing: { before: 240 } }),
+      )
+      if (meta.reference) {
+        docChildren.push(
+          new Paragraph({ children: [new TextRun({ text: meta.reference, italics: true, color: '555555' })], spacing: { after: 120 } }),
+        )
+      }
+      if (entry.noteText) {
+        docChildren.push(
+          new Paragraph({ text: 'Notes', heading: HeadingLevel.HEADING_3, spacing: { before: 120 } }),
+        )
+        for (const line of entry.noteText.split('\n')) {
+          docChildren.push(new Paragraph({ text: line.trim(), spacing: { after: 80 } }))
+        }
+      }
+      if (Array.isArray(meta.studyQuestions) && meta.studyQuestions.length > 0) {
+        docChildren.push(
+          new Paragraph({ text: 'Quiz Questions', heading: HeadingLevel.HEADING_3, spacing: { before: 160 } }),
+        )
+        meta.studyQuestions.forEach((question, index) => {
+          docChildren.push(
+            new Paragraph({
+              children: [
+                new TextRun({ text: `${index + 1}. `, bold: true }),
+                new TextRun({ text: question }),
+              ],
+              spacing: { after: 80 },
+            }),
+          )
+        })
+      }
+      if (Array.isArray(entry.quizAnswers) && entry.quizAnswers.length > 0) {
+        docChildren.push(
+          new Paragraph({ text: 'Quiz Answers', heading: HeadingLevel.HEADING_3, spacing: { before: 160 } }),
+        )
+        entry.quizAnswers.forEach((answer, index) => {
+          docChildren.push(
+            new Paragraph({
+              children: [
+                new TextRun({ text: `Answer ${index + 1}: `, bold: true }),
+                new TextRun({ text: answer }),
+              ],
+              spacing: { after: 80 },
+            }),
+          )
+        })
       }
     }
   }
 
-  if (docChildren.length <= 2) {
+  if (docChildren.length <= 4) {
-    docChildren.push(new Paragraph({ text: 'No notes saved yet.', spacing: { before: 200 } }))
+    docChildren.push(new Paragraph({ text: 'No notes or quiz answers saved yet.', spacing: { before: 200 } }))
   }
 
   const doc = new Document({
     creator: 'Verse by Verse with Nate',
-    title: 'My Study Notes',
+    title: 'My Study Export',
     sections: [{ children: docChildren }],
   })
 
   const buffer = await Packer.toBuffer(doc)
-  const filename = `my-study-notes-${new Date().toISOString().slice(0, 10)}.docx`
+  const filename = `my-study-export-${new Date().toISOString().slice(0, 10)}.docx`
   res.setHeader('Content-Disposition', `attachment; filename="${filename}"`)
   res.setHeader('Content-Type', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document')
   res.send(buffer)
@@ -3304,6 +3605,8 @@ app.get('/api/study-account/overview', requireStudyAuth, async (req, res) => {
       username: user.username,
       displayName: user.displayName ?? '',
       subscribeNewsletter: user.subscribeNewsletter !== false,
+      studyRemindersEnabled: user.studyRemindersEnabled === true,
+      avatarUrl: getStudyAvatarUrl(user),
     },
     stats: {
       noteCount: Object.keys(notes).length,
@@ -3317,16 +3620,59 @@ app.get('/api/study-account/overview', requireStudyAuth, async (req, res) => {
 app.post('/api/study-account/profile', requireStudyAuth, (req, res) => {
   const user = req.studyUser
   const displayName = typeof req.body?.displayName === 'string' ? req.body.displayName.trim().slice(0, 80) : ''
+  const avatarUrl = typeof req.body?.avatarUrl === 'string' ? req.body.avatarUrl.trim() : ''
+  if (avatarUrl && !/^https?:\/\//i.test(avatarUrl) && !avatarUrl.startsWith('/uploads/') && !avatarUrl.startsWith('data:image/')) {
+    res.status(400).json({ message: 'Avatar must be a valid uploaded image, data URI, or https URL.' })
+    return
+  }
+
   user.displayName = displayName
+  user.avatarUrl = avatarUrl
   user.updatedAt = new Date().toISOString()
   queueStudyUsersWrite()
-  res.json({ ok: true, displayName: user.displayName })
+  res.json({ ok: true, displayName: user.displayName, avatarUrl: user.avatarUrl || getStudyAvatarUrl(user) })
+})
+
+app.post('/api/study-account/avatar-upload', requireStudyAuth, async (req, res) => {
+  try {
+    const filename = typeof req.body?.filename === 'string' ? req.body.filename : ''
+    const dataUrl = typeof req.body?.dataUrl === 'string' ? req.body.dataUrl : ''
+    const ext = inferImageExtensionFromDataUrl(dataUrl)
+
+    if (!ext) {
+      res.status(400).json({ message: 'Upload must be a PNG, JPG, WEBP, or GIF data URL.' })
+      return
+    }
+
+    const base64 = dataUrl.split(',')[1] ?? ''
+    const buffer = Buffer.from(base64, 'base64')
+    if (buffer.length === 0 || buffer.length > (4 * 1024 * 1024)) {
+      res.status(400).json({ message: 'Upload must be between 1 byte and 4MB.' })
+      return
+    }
+
+    const baseName = normalizeAssetBaseName(filename.replace(/\.[a-z0-9]+$/i, ''))
+    const finalName = `${baseName || 'avatar'}-${Date.now()}${ext}`
+
+    await mkdir(UPLOADS_DIR, { recursive: true })
+    await writeFile(path.join(UPLOADS_DIR, finalName), buffer)
+    const metadata = await readUploadsMetadata()
+    metadata[finalName] = []
+    await writeUploadsMetadata(metadata)
+
+    res.json({ ok: true, url: `/uploads/${finalName}` })
+  } catch (err) {
+    console.error('[study-account-avatar-upload] upload error:', err)
+    res.status(500).json({ message: 'Avatar upload failed.' })
+  }
 })
 
 app.patch('/api/study-account/preferences', requireStudyAuth, (req, res) => {
   const user = req.studyUser
   const subscribeNewsletter = req.body?.subscribeNewsletter === true
+  const studyRemindersEnabled = req.body?.studyRemindersEnabled === true
   user.subscribeNewsletter = subscribeNewsletter
+  user.studyRemindersEnabled = studyRemindersEnabled
   user.updatedAt = new Date().toISOString()
   queueStudyUsersWrite()
 
@@ -3334,7 +3680,7 @@ app.patch('/api/study-account/preferences', requireStudyAuth, (req, res) => {
     syncContactToResend(user.displayName || user.username, user.username).catch(err => console.error('[study-account] resend sync error:', err))
   }
 
-  res.json({ ok: true, subscribeNewsletter: user.subscribeNewsletter })
+  res.json({ ok: true, subscribeNewsletter: user.subscribeNewsletter, studyRemindersEnabled: user.studyRemindersEnabled === true })
 })
 
 app.post('/api/study-account/request-email-change', studyAuthRateLimiter, requireStudyAuth, async (req, res) => {
@@ -5150,6 +5496,7 @@ Promise.all([
   loadDraftQuestionsFromDisk(),
   loadStudyUsersFromDisk(),
   loadStudyCommunityFromDisk(),
+  loadStudyRemindersFromDisk(),
   migrateStudyNotesIfNeeded(),
   loadDownloadCountsFromDisk(),
   loadPodcastChecklistFromDisk(),
@@ -5172,6 +5519,14 @@ Promise.all([
       }
     }, 60 * 60 * 1000)
 
+    // Send study reminder emails for newly released lessons every hour
+    setInterval(() => {
+      scheduleStudyReminders().catch(err => {
+        console.error('[study-reminders] failed to schedule reminders:', err)
+      })
+    }, 60 * 60 * 1000)
+    void scheduleStudyReminders()
+
     app.listen(PORT, () => {
       logResendEmailAlignmentWarnings()
       console.log(`Portfolio app listening on http://localhost:${PORT}`)

server/helpers.js

@@ -257,10 +257,14 @@ function sanitizeColossiansStudySections(value) {
         studyQuestions: Array.isArray(item.studyQuestions)
           ? item.studyQuestions.filter(question => typeof question === 'string').map(question => question.trim()).filter(Boolean).slice(0, 20)
           : [],
+        checkpointPrompt: typeof item.checkpointPrompt === 'string' ? item.checkpointPrompt.trim().slice(0, 600) : '',
+        checkpointQuestions: Array.isArray(item.checkpointQuestions)
+          ? item.checkpointQuestions.filter(question => typeof question === 'string').map(question => question.trim()).filter(Boolean).slice(0, 20)
+          : [],
         ...(releasedAt ? { releasedAt } : {}),
       }
     })
-    .filter(item => item.title || item.summary || item.commentary || item.greekNotes.length > 0 || item.studyQuestions.length > 0 || item.passageText)
+    .filter(item => item.title || item.summary || item.commentary || item.greekNotes.length > 0 || item.studyQuestions.length > 0 || item.passageText || item.checkpointPrompt || item.checkpointQuestions.length > 0)
 }
 
 function sanitizeStudies(value) {

src/AdminPage.tsx

@@ -2077,6 +2077,8 @@ export default function AdminPage({ content, onSave, onLogout }: Props) {
                 commentary: '',
                 greekNotes: [],
                 studyQuestions: [],
+                checkpointPrompt: '',
+                checkpointQuestions: [],
               },
             ],
           }

src/App.tsx

@@ -4,7 +4,7 @@ import { Link, NavLink, Routes, Route, useLocation, useNavigate, useParams } fro
 import AdminPage from './AdminPage'
 import QASection from './components/QASection'
 import ContactForm from './components/ContactForm'
-import { ColossiansStudyIndexPage, ColossiansStudyNotesPage, ColossiansStudySectionPage, StudyLandingPage, StudySignupPage, StudyAccountPage, StudyCommunityPage } from './colossiansStudy'
+import { ColossiansStudyIndexPage, ColossiansStudyNotesPage, ColossiansStudySectionPage, StudyLandingPage, StudySignupPage, StudyAccountPage, StudyCommunityPage, StudyQuizPage } from './colossiansStudy'
 import { SpotifyIcon } from './icons'
 import type { SiteContent, ArchivedSeries, StudyProgram } from './content'
 import { DEFAULTS } from './content'
@@ -2053,6 +2053,7 @@ export default function App() {
         <Route path="/study/:studySlug" element={<StudyRouteFrame content={content} child={<ColossiansStudyIndexPage content={content} />} />} />
         <Route path="/study/:studySlug/community" element={<StudyRouteFrame content={content} child={<StudyCommunityPage content={content} />} />} />
         <Route path="/study/:studySlug/notes" element={<StudyRouteFrame content={content} child={<ColossiansStudyNotesPage content={content} />} />} />
+        <Route path="/study/:studySlug/:sectionId/quiz" element={<StudyRouteFrame content={content} child={<StudyQuizPage content={content} />} />} />
         <Route path="/study/:studySlug/:sectionId" element={<StudyRouteFrame content={content} child={<ColossiansStudySectionPage content={content} />} />} />
       <Route path="/episodes" element={<EpisodesPage content={content} />} />
       <Route path="/episodes/:id" element={<EpisodeDetailPage content={content} />} />

src/colossiansStudy.tsx

@@ -12,6 +12,8 @@ type StudyAuthState = {
   enrolledStudySlugs?: string[]
   displayName?: string
   subscribeNewsletter?: boolean
+  studyRemindersEnabled?: boolean
+  avatarUrl?: string
 }
 
 type StudyAuthStatusResponse = {
@@ -20,6 +22,8 @@ type StudyAuthStatusResponse = {
   enrolledStudySlugs?: string[]
   displayName?: string
   subscribeNewsletter?: boolean
+  studyRemindersEnabled?: boolean
+  avatarUrl?: string
 }
 
 type StudyAccountOverview = {
@@ -27,6 +31,8 @@ type StudyAccountOverview = {
     username: string
     displayName: string
     subscribeNewsletter: boolean
+    studyRemindersEnabled: boolean
+    avatarUrl?: string
   }
   stats: {
     noteCount: number
@@ -53,6 +59,7 @@ type StudyProgress = {
 type StudyCommunityReply = {
   id: string
   authorName: string
+  authorAvatarUrl?: string
   message: string
   createdAt: string
 }
@@ -62,6 +69,7 @@ type StudyCommunityPost = {
   studySlug: string
   sectionId: string
   authorName: string
+  authorAvatarUrl?: string
   message: string
   createdAt: string
   replies: StudyCommunityReply[]
@@ -358,6 +366,13 @@ function CommunityBoard({
               <div key={post.id} style={{ border: '1px solid #2a2518', borderRadius: '14px', padding: '1.15rem', background: '#11100d' }}>
                 <div style={{ display: 'flex', justifyContent: 'space-between', gap: '1rem', flexWrap: 'wrap', marginBottom: '0.4rem' }}>
                   <div style={{ display: 'flex', alignItems: 'center', gap: '0.65rem', flexWrap: 'wrap' }}>
+                    {post.authorAvatarUrl ? (
+                      <img src={post.authorAvatarUrl} alt={`${post.authorName || 'Student'} avatar`} width={28} height={28} style={{ borderRadius: '50%', border: '1px solid #2a2518' }} />
+                    ) : (
+                      <div style={{ width: 28, height: 28, borderRadius: '50%', background: '#2a2518', display: 'grid', placeItems: 'center', color: '#f0ead8', fontSize: '0.85rem', fontWeight: 700 }}>
+                        {post.authorName?.slice(0, 1).toUpperCase() || 'S'}
+                      </div>
+                    )}
                     <strong style={{ color: '#e0c070' }}>{post.authorName || 'Student'}</strong>
                     {postSection && !activeSection && (
                       <button
@@ -393,7 +408,16 @@ function CommunityBoard({
                     {post.replies.map(reply => (
                       <div key={reply.id} style={{ borderLeft: '2px solid #2a2518', paddingLeft: '0.85rem' }}>
                         <div style={{ display: 'flex', justifyContent: 'space-between', gap: '1rem', flexWrap: 'wrap' }}>
+                          <div style={{ display: 'flex', alignItems: 'center', gap: '0.55rem', flexWrap: 'wrap' }}>
+                      {reply.authorAvatarUrl ? (
+                        <img src={reply.authorAvatarUrl} alt={`${reply.authorName || 'Student'} avatar`} width={22} height={22} style={{ borderRadius: '50%', border: '1px solid #2a2518' }} />
+                      ) : (
+                        <div style={{ width: 22, height: 22, borderRadius: '50%', background: '#2a2518', display: 'grid', placeItems: 'center', color: '#f0ead8', fontSize: '0.75rem', fontWeight: 700 }}>
+                          {reply.authorName?.slice(0, 1).toUpperCase() || 'S'}
+                        </div>
+                      )}
                       <strong style={{ color: '#c9a84c', fontSize: '0.95rem' }}>{reply.authorName || 'Student'}</strong>
+                    </div>
                           <span className="study-note-status">{formatCommunityDate(reply.createdAt)}</span>
                         </div>
                         <p className="study-detail-copy" style={{ margin: '0.25rem 0 0', whiteSpace: 'pre-wrap' }}>{reply.message}</p>
@@ -432,12 +456,287 @@ function isEnrolledInStudy(auth: StudyAuthState, studySlug: string | undefined):
 }
 
 export function StudyLandingPage({ content }: Props) {
+  const [auth, setAuth] = useState<StudyAuthState>({ checked: false, authenticated: false, username: '', enrolledStudySlugs: [], displayName: '', subscribeNewsletter: true, studyRemindersEnabled: false, avatarUrl: '' })
+  const [overview, setOverview] = useState<StudyAccountOverview | null>(null)
+  const [loading, setLoading] = useState(true)
+  const [error, setError] = useState('')
+  const [studyModal, setStudyModal] = useState<'none' | 'enrollments' | 'browseTracks'>('none')
+  const [enrollBusySlug, setEnrollBusySlug] = useState('')
+  const [enrollMessage, setEnrollMessage] = useState('')
+
   const studies = getStudies(content)
   const activeStudies = studies.filter(study => study.status !== 'planned')
   const plannedStudies = studies.filter(study => study.status === 'planned')
   const firstActiveStudy = activeStudies[0]
   const firstActiveStudyFirstReleasedSection = firstActiveStudy?.sections.find(isSectionReleased)
 
+  async function refreshOverview() {
+    if (!auth.authenticated) return
+    try {
+      const dashboard = await readJson<StudyAccountOverview>('/api/study-account/overview')
+      setOverview(dashboard)
+    } catch (err) {
+      console.error(err)
+    }
+  }
+
+  async function handleEnrollmentToggle(studySlug: string, enrolled: boolean) {
+    if (!auth.authenticated) {
+      setEnrollMessage('Sign in to change your enrollments.')
+      return
+    }
+
+    setEnrollBusySlug(studySlug)
+    setEnrollMessage('')
+    try {
+      const data = await readJson<{ enrolledStudySlugs?: string[]; studyTitle?: string }>(`/api/study-enrollment/${encodeURIComponent(studySlug)}`, {
+        method: enrolled ? 'DELETE' : 'POST',
+      })
+      const slugs = normalizeEnrolledStudySlugs(data.enrolledStudySlugs)
+      setAuth(prev => ({ ...prev, enrolledStudySlugs: slugs }))
+      setEnrollMessage(enrolled ? `Unenrolled from ${data.studyTitle ?? studySlug}.` : `Enrolled in ${data.studyTitle ?? studySlug}.`)
+      await refreshOverview()
+    } catch (err) {
+      setEnrollMessage(err instanceof Error ? err.message : 'Unable to update enrollment.')
+    } finally {
+      setEnrollBusySlug('')
+    }
+  }
+
+  function closeStudyModal() {
+    setStudyModal('none')
+    setEnrollMessage('')
+  }
+
+  useEffect(() => {
+    let cancelled = false
+
+    async function load() {
+      setLoading(true)
+      setError('')
+      try {
+        const authData = await readJson<StudyAuthStatusResponse>('/api/study-auth/status')
+        if (cancelled) return
+        setAuth({
+          checked: true,
+          authenticated: Boolean(authData.authenticated),
+          username: authData.username ?? '',
+          displayName: authData.displayName ?? '',
+          subscribeNewsletter: authData.subscribeNewsletter !== false,
+          studyRemindersEnabled: authData.studyRemindersEnabled === true,
+          avatarUrl: authData.avatarUrl ?? '',
+          enrolledStudySlugs: normalizeEnrolledStudySlugs(authData.enrolledStudySlugs),
+        })
+
+        if (authData.authenticated) {
+          const dashboard = await readJson<StudyAccountOverview>('/api/study-account/overview')
+          if (cancelled) return
+          setOverview(dashboard)
+        }
+      } catch (err) {
+        if (cancelled) return
+        setError(err instanceof Error ? err.message : 'Unable to load your study dashboard.')
+      } finally {
+        if (cancelled) return
+        setLoading(false)
+      }
+    }
+
+    void load()
+    return () => {
+      cancelled = true
+    }
+  }, [])
+
+  const enrolledStudies = overview?.studies.filter(study => study.enrolled) ?? []
+  const availableStudies = overview?.studies ?? []
+  const totalEnrolled = enrolledStudies.length
+  const totalCompletedLessons = enrolledStudies.reduce((sum, study) => sum + study.completedLessons, 0)
+  const totalLessons = enrolledStudies.reduce((sum, study) => sum + study.totalLessons, 0)
+
+  if (loading) {
+    return (
+      <main className="study-index-page" aria-label="Study hub">
+        <section className="section-study-course-hero">
+          <div className="section-inner study-course-hero-inner">
+            <p className="eyebrow">Study Dashboard</p>
+            <h1>Loading your study progress…</h1>
+            <p className="study-course-hero-copy">Hang tight while we gather your enrolled tracks and lesson progress.</p>
+          </div>
+        </section>
+      </main>
+    )
+  }
+
+  if (auth.authenticated && overview) {
+    return (
+      <main className="study-index-page" aria-label="Study dashboard">
+        <section className="section-study-course-hero">
+          <div className="section-inner study-course-hero-inner" style={{ alignItems: 'flex-start' }}>
+            <div style={{ display: 'flex', alignItems: 'center', gap: '1rem', flexWrap: 'wrap' }}>
+              {auth.avatarUrl ? (
+                <img src={auth.avatarUrl} alt="Your avatar" width={76} height={76} style={{ borderRadius: '50%', border: '1px solid #2a2518' }} />
+              ) : (
+                <div style={{ width: 76, height: 76, borderRadius: '50%', background: '#2a2518', display: 'grid', placeItems: 'center', color: '#f0ead8', fontWeight: 700, fontSize: '1.75rem' }}>
+                  {auth.displayName?.slice(0, 1).toUpperCase() || auth.username.slice(0, 1).toUpperCase()}
+                </div>
+              )}
+              <div>
+                <p className="eyebrow">Welcome back</p>
+                <h1 style={{ marginTop: 0 }}>{auth.displayName || auth.username.split('@')[0]}</h1>
+                <p className="study-course-hero-copy">Your progress, enrollments, and classroom resources are all in one place.</p>
+              </div>
+            </div>
+
+            <div className="study-course-meta" style={{ marginTop: '1.5rem', gap: '0.75rem' }}>
+              <span>{totalEnrolled} enrolled track{totalEnrolled === 1 ? '' : 's'}</span>
+              <span>{totalCompletedLessons}/{totalLessons} lessons completed</span>
+              <span>{overview.stats.noteCount} notes saved</span>
+              {auth.studyRemindersEnabled ? <span>Lesson reminders enabled</span> : <span>Reminders off</span>}
+            </div>
+            {error && <p className="study-note-status" style={{ marginTop: '0.75rem' }}>{error}</p>}
+
+            <div className="study-course-hero-actions" style={{ marginTop: '1.5rem' }}>
+              <Link to="/study/account" className="btn-primary">Open My Account</Link>
+              <button type="button" className="btn-secondary" onClick={() => setStudyModal('enrollments')}>View Enrollments</button>
+              <button type="button" className="btn-secondary" onClick={() => setStudyModal('browseTracks')}>Browse All Tracks</button>
+            </div>
+          </div>
+        </section>
+        {studyModal !== 'none' && (
+          <div style={{ position: 'fixed', inset: 0, zIndex: 1000, background: 'rgba(5, 5, 5, 0.86)', display: 'flex', alignItems: 'center', justifyContent: 'center', padding: '1.25rem' }}>
+            <div style={{ width: '100%', maxWidth: '760px', maxHeight: 'calc(100vh - 2rem)', overflowY: 'auto', background: '#11100d', border: '1px solid #3a3320', borderRadius: '18px', padding: '1.4rem', position: 'relative' }} role="dialog" aria-modal="true" aria-labelledby="study-modal-heading">
+              <button type="button" onClick={closeStudyModal} style={{ position: 'absolute', top: '1rem', right: '1rem', background: 'transparent', border: 'none', color: '#f0ead8', fontSize: '1.35rem', cursor: 'pointer' }} aria-label="Close study modal">×</button>
+              <h2 id="study-modal-heading">{studyModal === 'enrollments' ? 'Manage Enrollments' : 'Browse All Tracks'}</h2>
+              <p style={{ marginTop: '0.5rem', marginBottom: '1rem', color: '#b9b09b' }}>
+                {studyModal === 'enrollments'
+                  ? 'Review and change the study tracks you are enrolled in. Use the buttons below to join or leave each track.'
+                  : 'See every study track available now. Enroll in a study directly from this popup and start right away.'}
+              </p>
+              {auth.authenticated && overview ? (
+                studyModal === 'enrollments' ? (
+                  enrolledStudies.length > 0 ? (
+                    <div style={{ display: 'grid', gap: '1rem' }}>
+                      {enrolledStudies.map(studyInfo => (
+                        <div key={studyInfo.slug} style={{ padding: '1rem', borderRadius: '12px', background: '#14130f', border: '1px solid #2a2518' }}>
+                          <div style={{ display: 'flex', justifyContent: 'space-between', gap: '1rem', alignItems: 'flex-start' }}>
+                            <div>
+                              <p style={{ margin: 0, fontSize: '0.9rem', color: '#b09e79' }}>{studyInfo.status === 'active' ? 'Active study' : 'Planned study'}</p>
+                              <h3 style={{ margin: '0.35rem 0 0' }}>{studyInfo.title}</h3>
+                              <p style={{ margin: '0.4rem 0 0', fontSize: '0.9rem' }}>{studyInfo.completedLessons}/{studyInfo.totalLessons} lessons completed · {studyInfo.noteCount} notes</p>
+                            </div>
+                            <button
+                              type="button"
+                              className="btn-admin-remove"
+                              disabled={enrollBusySlug === studyInfo.slug}
+                              onClick={() => handleEnrollmentToggle(studyInfo.slug, true)}
+                            >
+                              {enrollBusySlug === studyInfo.slug ? 'Working…' : 'Leave'}
+                            </button>
+                          </div>
+                        </div>
+                      ))}
+                    </div>
+                  ) : (
+                    <div style={{ padding: '1rem', background: '#14130f', borderRadius: '12px', border: '1px solid #2a2518' }}>
+                      <p style={{ margin: 0 }}>You are not enrolled in any tracks yet. Use Browse All Tracks to find a study and enroll.</p>
+                      <button type="button" className="btn-primary" style={{ marginTop: '1rem' }} onClick={() => setStudyModal('browseTracks')}>Browse All Tracks</button>
+                    </div>
+                  )
+                ) : (
+                  <div style={{ display: 'grid', gap: '1rem' }}>
+                    {availableStudies.map(studyInfo => (
+                      <div key={studyInfo.slug} style={{ padding: '1rem', borderRadius: '12px', background: '#14130f', border: '1px solid #2a2518' }}>
+                        <div style={{ display: 'flex', justifyContent: 'space-between', gap: '1rem', alignItems: 'flex-start' }}>
+                          <div>
+                            <p style={{ margin: 0, fontSize: '0.9rem', color: '#b09e79' }}>{studyInfo.status === 'active' ? 'Active study' : 'Planned study'}</p>
+                            <h3 style={{ margin: '0.35rem 0 0' }}>{studyInfo.title}</h3>
+                            <p style={{ margin: '0.4rem 0 0', fontSize: '0.9rem' }}>{studyInfo.completedLessons}/{studyInfo.totalLessons} lessons completed · {studyInfo.noteCount} notes</p>
+                          </div>
+                          <button
+                            type="button"
+                            className={studyInfo.enrolled ? 'btn-admin-remove' : 'btn-primary'}
+                            disabled={enrollBusySlug === studyInfo.slug}
+                            onClick={() => handleEnrollmentToggle(studyInfo.slug, studyInfo.enrolled)}
+                          >
+                            {enrollBusySlug === studyInfo.slug ? 'Working…' : studyInfo.enrolled ? 'Leave' : 'Enroll'}
+                          </button>
+                        </div>
+                      </div>
+                    ))}
+                  </div>
+                )
+              ) : auth.authenticated ? (
+                <p>No study information is available yet. Please refresh the page or visit your account to load your enrollments.</p>
+              ) : (
+                <div style={{ padding: '1rem', background: '#14130f', borderRadius: '12px', border: '1px solid #2a2518' }}>
+                  <p style={{ margin: 0 }}>Sign in to manage your enrollments and browse tracks from within the app.</p>
+                  <div style={{ marginTop: '1rem', display: 'flex', gap: '0.75rem', flexWrap: 'wrap' }}>
+                    <Link to="/study/signup" className="btn-primary">Sign In</Link>
+                    <button type="button" className="btn-secondary" onClick={closeStudyModal}>Close</button>
+                  </div>
+                </div>
+              )}
+              {enrollMessage && <p className="study-note-status" style={{ marginTop: '1rem' }}>{enrollMessage}</p>}
+            </div>
+          </div>
+        )}
+
+        <section id="my-tracks" className="section-study-module" aria-label="Your enrolled tracks" style={{ paddingTop: '1rem' }}>
+          <div className="section-inner">
+            <div className="study-module-header">
+              <p>Your Classroom</p>
+              <h2>Enrolled Tracks</h2>
+            </div>
+
+            {totalEnrolled === 0 ? (
+              <article className="study-class-block">
+                <h2>No enrollments yet</h2>
+                <p className="study-detail-copy">You are signed in, but you have not enrolled in any study track yet. Browse the available tracks and join the one you want to start.</p>
+                <button type="button" className="btn-primary" onClick={() => setStudyModal('browseTracks')}>Browse Tracks</button>
+              </article>
+            ) : (
+              <div className="study-module-list">
+                {enrolledStudies.map(study => {
+                  const studyMeta = getStudyBySlug(studies, study.slug)
+                  const progress = study.totalLessons > 0 ? Math.round((study.completedLessons / study.totalLessons) * 100) : 0
+                  return (
+                    <article key={study.slug} className="study-module-row">
+                      <div className="study-module-row-left">
+                        <p className="study-module-lesson">{study.enrolled ? 'Enrolled' : 'Track'}</p>
+                        <h3>{study.title}</h3>
+                        <p>{studyMeta?.description ?? 'Continue your study with the lessons and notes available in this track.'}</p>
+                        <div style={{ display: 'flex', gap: '1rem', flexWrap: 'wrap', marginTop: '0.75rem' }}>
+                          <span style={{ color: '#7a7060', fontSize: '0.9rem' }}>{study.completedLessons}/{study.totalLessons} lessons completed</span>
+                          <span style={{ color: '#7a7060', fontSize: '0.9rem' }}>{study.noteCount} notes</span>
+                        </div>
+                        <div style={{ marginTop: '0.75rem', height: '10px', width: '100%', background: '#27231b', borderRadius: '999px', overflow: 'hidden' }}>
+                          <div style={{ width: `${progress}%`, height: '100%', background: '#e0c070' }} />
+                        </div>
+                      </div>
+                      <div className="study-module-row-right" style={{ display: 'flex', flexDirection: 'column', justifyContent: 'space-between' }}>
+                        <div>
+                          <p className="study-module-focus">Progress</p>
+                          <p>{progress}% complete</p>
+                        </div>
+                        <div style={{ display: 'flex', gap: '0.5rem', flexWrap: 'wrap', marginTop: '1rem' }}>
+                          <Link to={`/study/${study.slug}`} className="btn-primary">Continue</Link>
+                          <Link to={`/study/${study.slug}/notes`} className="btn-secondary">My Notes</Link>
+                          <Link to={`/study/${study.slug}/community`} className="btn-secondary">Community</Link>
+                        </div>
+                      </div>
+                    </article>
+                  )
+                })}
+              </div>
+            )}
+          </div>
+        </section>
+
+      </main>
+    )
+  }
+
   return (
     <main className="study-index-page" aria-label="Study hub">
       <section className="section-study-course-hero">
@@ -453,7 +752,6 @@ export function StudyLandingPage({ content }: Props) {
           </div>
           <div className="study-course-hero-actions">
             {firstActiveStudyFirstReleasedSection && <Link to={`/study/${firstActiveStudy.slug}/${firstActiveStudyFirstReleasedSection.id}`} className="btn-primary">Start Learning</Link>}
-            <Link to="#study-tracks" className="btn-secondary">Browse Tracks</Link>
             <Link to="/study/signup" className="btn-primary">Create Account or Login</Link>
             <Link to="/study/account" className="btn-secondary">My Account</Link>
           </div>
@@ -588,6 +886,7 @@ export function StudySignupPage() {
       })
       setDone(true)
       setLoggedInAs(data.username ?? email.trim().toLowerCase())
+      navigate('/study')
     } catch (err) {
       setMessage(err instanceof Error ? err.message : 'Something went wrong. Please try again.')
     } finally {
@@ -1299,7 +1598,8 @@ export function ColossiansStudySectionPage({ content }: Props) {
                   <li key={index}>{question}</li>
                 ))}
               </ol>
-              <div style={{ marginTop: '1.25rem', display: 'flex', gap: '0.75rem', flexWrap: 'wrap' }}>
+              <div style={{ marginTop: '1rem', display: 'flex', gap: '0.75rem', flexWrap: 'wrap' }}>
+                <Link to={`/study/${study.slug}/${section.id}/quiz`} className="btn-secondary">Take the Quiz</Link>
                 <Link to={`/study/${study.slug}/community?sectionId=${encodeURIComponent(section.id)}`} className="btn-primary">Go to Community</Link>
                 <Link to={`/contact?source=community&study=${encodeURIComponent(study.title)}`} className="btn-secondary">Ask Nate</Link>
               </div>
@@ -1585,12 +1885,17 @@ export function StudyAccountPage() {
   const [loadingOverview, setLoadingOverview] = useState(false)
 
   const [displayNameInput, setDisplayNameInput] = useState('')
+  const [avatarUrlInput, setAvatarUrlInput] = useState('')
   const [profileMessage, setProfileMessage] = useState('')
   const [profileBusy, setProfileBusy] = useState(false)
+  const [avatarUploadBusy, setAvatarUploadBusy] = useState(false)
+  const [avatarUploadMessage, setAvatarUploadMessage] = useState('')
 
   const [subscribeNewsletter, setSubscribeNewsletter] = useState(true)
+  const [studyRemindersEnabled, setStudyRemindersEnabled] = useState(true)
   const [prefMessage, setPrefMessage] = useState('')
   const [prefBusy, setPrefBusy] = useState(false)
+  const [accountModal, setAccountModal] = useState<'none' | 'enrollments' | 'changeEmail' | 'changePassword' | 'profile' | 'preferences' | 'export'>('none')
 
   const [emailCurrentPassword, setEmailCurrentPassword] = useState('')
   const [emailNew, setEmailNew] = useState('')
@@ -1628,6 +1933,8 @@ export function StudyAccountPage() {
           username: data.username ?? '',
           displayName: data.displayName ?? '',
           subscribeNewsletter: data.subscribeNewsletter !== false,
+          studyRemindersEnabled: data.studyRemindersEnabled === true,
+          avatarUrl: data.avatarUrl ?? '',
           enrolledStudySlugs: normalizeEnrolledStudySlugs(data.enrolledStudySlugs),
         })
       })
@@ -1641,7 +1948,9 @@ export function StudyAccountPage() {
       .then(data => {
         setOverview(data)
         setDisplayNameInput(data.profile.displayName ?? '')
+        setAvatarUrlInput(data.profile.avatarUrl ?? '')
         setSubscribeNewsletter(data.profile.subscribeNewsletter !== false)
+        setStudyRemindersEnabled(data.profile.studyRemindersEnabled === true)
       })
       .catch(() => {})
       .finally(() => setLoadingOverview(false))
@@ -1671,19 +1980,55 @@ export function StudyAccountPage() {
     const data = await readJson<StudyAccountOverview>('/api/study-account/overview')
     setOverview(data)
     setDisplayNameInput(data.profile.displayName ?? '')
+    setAvatarUrlInput(data.profile.avatarUrl ?? '')
     setSubscribeNewsletter(data.profile.subscribeNewsletter !== false)
+    setStudyRemindersEnabled(data.profile.studyRemindersEnabled === true)
+  }
+
+  async function handleAvatarUpload(file: File) {
+    setAvatarUploadBusy(true)
+    setAvatarUploadMessage('')
+    try {
+      if (!file.type.startsWith('image/')) {
+        throw new Error('Please upload an image file.')
+      }
+      const reader = new FileReader()
+      const dataUrl = await new Promise<string>((resolve, reject) => {
+        reader.onload = () => {
+          if (typeof reader.result === 'string') resolve(reader.result)
+          else reject(new Error('Unable to read image file.'))
+        }
+        reader.onerror = () => reject(new Error('Failed to read image file.'))
+        reader.readAsDataURL(file)
+      })
+
+      const result = await readJson<{ ok: boolean; url: string }>('/api/study-account/avatar-upload', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ filename: file.name, dataUrl }),
+      })
+      setAvatarUrlInput(result.url)
+      setAvatarUploadMessage('Avatar uploaded successfully. Save profile to keep it.')
+    } catch (err) {
+      setAvatarUploadMessage(err instanceof Error ? err.message : 'Unable to upload avatar.')
+    } finally {
+      setAvatarUploadBusy(false)
+    }
   }
 
   async function handleProfileSave() {
     setProfileBusy(true)
     setProfileMessage('')
     try {
-      const data = await readJson<{ ok: boolean; displayName: string }>('/api/study-account/profile', {
+      const data = await readJson<{ ok: boolean; displayName: string; avatarUrl?: string }>('/api/study-account/profile', {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ displayName: displayNameInput }),
+        body: JSON.stringify({ displayName: displayNameInput, avatarUrl: avatarUrlInput.trim() }),
       })
-      setAuth(prev => ({ ...prev, displayName: data.displayName }))
+      setAuth(prev => ({ ...prev, displayName: data.displayName, avatarUrl: data.avatarUrl ?? prev.avatarUrl }))
+      if (data.avatarUrl) {
+        setAvatarUrlInput(data.avatarUrl)
+      }
       setProfileMessage('Profile saved.')
       await refreshOverview()
     } catch (err) {
@@ -1697,12 +2042,12 @@ export function StudyAccountPage() {
     setPrefBusy(true)
     setPrefMessage('')
     try {
-      const data = await readJson<{ ok: boolean; subscribeNewsletter: boolean }>('/api/study-account/preferences', {
+      const data = await readJson<{ ok: boolean; subscribeNewsletter: boolean; studyRemindersEnabled: boolean }>('/api/study-account/preferences', {
         method: 'PATCH',
         headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ subscribeNewsletter }),
+        body: JSON.stringify({ subscribeNewsletter, studyRemindersEnabled }),
       })
-      setAuth(prev => ({ ...prev, subscribeNewsletter: data.subscribeNewsletter }))
+      setAuth(prev => ({ ...prev, subscribeNewsletter: data.subscribeNewsletter, studyRemindersEnabled: data.studyRemindersEnabled }))
       setPrefMessage('Preferences updated.')
       await refreshOverview()
     } catch (err) {
@@ -1833,6 +2178,13 @@ export function StudyAccountPage() {
     }
   }
 
+  function closeAccountModal() {
+    setAccountModal('none')
+    setEmailMessage('')
+    setPwMessage('')
+    setEnrollMessage('')
+  }
+
   if (!auth.checked) {
     return (
       <main className="thanks-page" aria-label="Loading">
@@ -1861,7 +2213,20 @@ export function StudyAccountPage() {
       <div className="thanks-card" style={{ maxWidth: '760px', textAlign: 'left' }}>
         <p className="eyebrow">Student Account</p>
         <h1>My Account</h1>
-        <p style={{ marginBottom: '1.5rem' }}>Signed in as <strong>{auth.username}</strong></p>
+        <div style={{ display: 'flex', alignItems: 'center', gap: '1rem', flexWrap: 'wrap', marginBottom: '1rem' }}>
+          {auth.avatarUrl ? (
+            <img src={auth.avatarUrl} alt="Your avatar" width={64} height={64} style={{ borderRadius: '50%', border: '1px solid #2a2518' }} />
+          ) : (
+            <div style={{ width: 64, height: 64, borderRadius: '50%', background: '#2a2518', display: 'flex', alignItems: 'center', justifyContent: 'center', color: '#f0ead8', fontWeight: 700, fontSize: '1.5rem' }}>
+              {auth.displayName?.slice(0, 1).toUpperCase() || auth.username.slice(0, 1).toUpperCase()}
+            </div>
+          )}
+          <div>
+            <p style={{ margin: 0, fontSize: '0.95rem' }}>Signed in as</p>
+            <p style={{ margin: '0.25rem 0 0', fontWeight: 700 }}>{auth.displayName || auth.username}</p>
+            <p style={{ margin: '0.25rem 0 0', fontSize: '0.9rem', color: '#7a7060' }}>{auth.username}</p>
+          </div>
+        </div>
 
         {overview?.stats && (
           <>
@@ -1880,36 +2245,127 @@ export function StudyAccountPage() {
         )}
 
         <section style={{ marginBottom: '2rem' }}>
-          <h2 style={{ marginTop: 0 }}>Enrollment Manager</h2>
+          <h2 style={{ marginTop: 0 }}>Quick Actions</h2>
-          <p style={{ fontSize: '0.92rem' }}>Enroll or unenroll by study and track your progress.</p>
+          <p style={{ fontSize: '0.92rem' }}>Open the settings you need without scrolling through the whole page.</p>
-          {loadingOverview && <p>Loading studies...</p>}
+          <div style={{ display: 'flex', gap: '0.75rem', flexWrap: 'wrap', marginTop: '1rem' }}>
-          {!loadingOverview && overview?.studies?.map(study => (
+            <button type="button" className="btn-primary" onClick={() => setAccountModal('profile')}>Edit Profile</button>
-            <div key={study.slug} style={{ border: '1px solid #2a2518', background: '#151511', borderRadius: '8px', padding: '0.9rem', marginBottom: '0.75rem', display: 'flex', justifyContent: 'space-between', gap: '1rem', alignItems: 'center', flexWrap: 'wrap' }}>
+            <button type="button" className="btn-primary" onClick={() => setAccountModal('preferences')}>Preferences</button>
+            <button type="button" className="btn-primary" onClick={() => setAccountModal('export')}>Export Notes</button>
+            <button type="button" className="btn-primary" onClick={() => setAccountModal('enrollments')}>Manage Enrollments</button>
+            <button type="button" className="btn-secondary" onClick={() => setAccountModal('changeEmail')}>Change Email</button>
+            <button type="button" className="btn-secondary" onClick={() => setAccountModal('changePassword')}>Change Password</button>
+          </div>
+        </section>
+
+        {accountModal !== 'none' && (
+          <div style={{ position: 'fixed', inset: 0, zIndex: 1000, background: 'rgba(5, 5, 5, 0.8)', display: 'flex', alignItems: 'center', justifyContent: 'center', padding: '1.25rem' }}>
+            <div style={{ width: '100%', maxWidth: '720px', maxHeight: 'calc(100vh - 2.5rem)', overflowY: 'auto', background: '#11100d', border: '1px solid #3a3320', borderRadius: '18px', padding: '1.5rem', position: 'relative' }} role="dialog" aria-modal="true" aria-labelledby="account-modal-heading">
+              <button type="button" onClick={closeAccountModal} style={{ position: 'absolute', top: '1rem', right: '1rem', background: 'transparent', border: 'none', color: '#f0ead8', fontSize: '1.35rem', cursor: 'pointer' }} aria-label="Close account settings">×</button>
+              {accountModal === 'enrollments' && (
+                <>
+                  <h2 id="account-modal-heading">Manage Enrollments</h2>
+                  <p style={{ marginTop: '0.5rem', marginBottom: '1rem', color: '#b9b09b' }}>Enroll or leave studies from one place. Your active study list is shown below.</p>
+                  {loadingOverview ? (
+                    <p>Loading study access...</p>
+                  ) : overview?.studies?.length ? (
+                    <div style={{ display: 'grid', gap: '1rem' }}>
+                      {overview.studies.map(studyInfo => (
+                        <div key={studyInfo.slug} style={{ padding: '1rem', borderRadius: '12px', background: '#14130f', border: '1px solid #2a2518' }}>
+                          <div style={{ display: 'flex', justifyContent: 'space-between', gap: '1rem', alignItems: 'flex-start' }}>
                             <div>
-                <p style={{ margin: 0, fontWeight: 600 }}>{study.title}</p>
+                              <p style={{ margin: 0, fontSize: '0.9rem', color: '#b09e79' }}>{studyInfo.status === 'active' ? 'Active study' : 'Planned study'}</p>
-                <p style={{ margin: '0.35rem 0 0', fontSize: '0.84rem' }}>
+                              <h3 style={{ margin: '0.35rem 0 0' }}>{studyInfo.title}</h3>
-                  Status: <strong>{study.enrolled ? 'Enrolled' : 'Not Enrolled'}</strong>
+                              <p style={{ margin: '0.4rem 0 0', fontSize: '0.9rem' }}>{studyInfo.completedLessons} of {studyInfo.totalLessons} lessons completed · {studyInfo.noteCount} notes</p>
-                  {` • Progress: ${study.completedLessons}/${study.totalLessons || 0} lessons completed`}
-                  {` • Notes: ${study.noteCount}`}
-                </p>
                             </div>
                             <button
                               type="button"
-                className={study.enrolled ? 'btn-secondary' : 'btn-primary'}
+                              className={studyInfo.enrolled ? 'btn-admin-remove' : 'btn-primary'}
-                disabled={study.status === 'planned' || enrollBusySlug === study.slug}
+                              disabled={enrollBusySlug === studyInfo.slug}
-                onClick={() => handleEnrollmentToggle(study.slug, study.enrolled)}
+                              onClick={() => handleEnrollmentToggle(studyInfo.slug, studyInfo.enrolled)}
                             >
-                {enrollBusySlug === study.slug ? 'Updating...' : (study.enrolled ? 'Unenroll' : 'Enroll')}
+                              {enrollBusySlug === studyInfo.slug ? 'Working…' : studyInfo.enrolled ? 'Leave' : 'Enroll'}
                             </button>
                           </div>
+                        </div>
                       ))}
-          {enrollMessage && <p className="study-note-status">{enrollMessage}</p>}
+                    </div>
-        </section>
+                  ) : (
-
+                    <p>No study access information is available right now.</p>
-        {divider}
+                  )}
-
+                  {enrollMessage && <p className="study-note-status" style={{ marginTop: '1rem' }}>{enrollMessage}</p>}
-        <section style={{ marginBottom: '2rem' }}>
+                </>
-          <h2 style={{ marginTop: 0 }}>Profile Settings</h2>
+              )}
+              {accountModal === 'changeEmail' && (
+                <>
+                  <h2 id="account-modal-heading">Change Email</h2>
+                  <p style={{ marginTop: '0.5rem', marginBottom: '1rem', color: '#b9b09b' }}>Update the email address used for sign in and course notifications.</p>
+                  <label style={{ display: 'block', marginBottom: '0.5rem' }}>Current email</label>
+                  <input type="email" value={auth.username} disabled style={{ width: '100%', padding: '0.75rem', borderRadius: '8px', border: '1px solid #2a2518', background: '#1a1912', color: '#b9b09b', marginBottom: '1rem' }} />
+                  <label style={{ display: 'block', marginBottom: '0.5rem' }}>New email</label>
+                  <input type="email" value={emailNew} onChange={e => setEmailNew(e.target.value)} placeholder="you@example.com" style={{ width: '100%', padding: '0.75rem', borderRadius: '8px', border: '1px solid #2a2518', background: '#14130f', color: '#f0ead8', marginBottom: '1rem' }} />
+                  <label style={{ display: 'block', marginBottom: '0.5rem' }}>Current password</label>
+                  <input type="password" value={emailCurrentPassword} onChange={e => setEmailCurrentPassword(e.target.value)} placeholder="Current password" style={{ width: '100%', padding: '0.75rem', borderRadius: '8px', border: '1px solid #2a2518', background: '#14130f', color: '#f0ead8', marginBottom: '1rem' }} />
+                  <div style={{ display: 'flex', gap: '0.75rem', flexWrap: 'wrap', marginBottom: '1rem' }}>
+                    <button type="button" className="btn-primary" disabled={emailBusy || !emailNew || !emailCurrentPassword} onClick={handleRequestEmailChange}>
+                      {emailBusy ? 'Sending…' : 'Send Verification Email'}
+                    </button>
+                  </div>
+                  {emailTokenInput && (
+                    <div style={{ marginTop: '1rem' }}>
+                      <p style={{ margin: '0 0 0.5rem' }}>Have a verification token?</p>
+                      <input type="text" value={emailTokenInput} onChange={e => setEmailTokenInput(e.target.value)} placeholder="Paste token here" style={{ width: '100%', padding: '0.75rem', borderRadius: '8px', border: '1px solid #2a2518', background: '#14130f', color: '#f0ead8', marginBottom: '0.75rem' }} />
+                      <button type="button" className="btn-secondary" disabled={emailBusy || !emailTokenInput.trim()} onClick={handleVerifyTokenInput}>Verify Token</button>
+                    </div>
+                  )}
+                  {emailMessage && <p className="study-note-status" style={{ marginTop: '1rem' }}>{emailMessage}</p>}
+                </>
+              )}
+              {accountModal === 'profile' && (
+                <>
+                  <h2 id="account-modal-heading">Profile Settings</h2>
+                  <p style={{ marginTop: '0.5rem', marginBottom: '1rem', color: '#b9b09b' }}>Update your display name and avatar in one place.</p>
+                  <label style={{ display: 'block', fontSize: '0.9rem', marginBottom: '0.5rem' }}>Choose an avatar</label>
+                  <p style={{ margin: '0 0 0.85rem', color: '#b9b09b' }}>Pick a preset avatar or upload your own image.</p>
+                  <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(92px, 1fr))', gap: '0.75rem', marginBottom: '1rem' }}>
+                    {[
+                      { key: 'dog', label: 'Dog', emoji: '🐶' },
+                      { key: 'cat', label: 'Cat', emoji: '🐱' },
+                      { key: 'rabbit', label: 'Rabbit', emoji: '🐰' },
+                      { key: 'fox', label: 'Fox', emoji: '🦊' },
+                      { key: 'panda', label: 'Panda', emoji: '🐼' },
+                      { key: 'lion', label: 'Lion', emoji: '🦁' },
+                    ].map(item => {
+                      const svg = `<svg xmlns="http://www.w3.org/2000/svg" width="88" height="88"><rect width="100%" height="100%" rx="18" ry="18" fill="#11100d"/><text x="50%" y="50%" dominant-baseline="middle" text-anchor="middle" font-size="56">${item.emoji}</text></svg>`
+                      const url = `data:image/svg+xml;utf8,${encodeURIComponent(svg)}`
+                      return (
+                        <button key={item.key} type="button" onClick={() => { setAvatarUrlInput(url); setAvatarUploadMessage('Preset avatar selected.') }} style={{ border: avatarUrlInput === url ? '2px solid #e0c070' : '1px solid #2a2518', borderRadius: '14px', padding: 0, background: '#11100d', cursor: 'pointer' }}>
+                          <img src={url} alt={item.label} width={88} height={88} style={{ display: 'block', borderRadius: '14px' }} />
+                        </button>
+                      )
+                    })}
+                  </div>
+                  <div style={{ marginBottom: '1rem' }}>
+                    <label style={{ display: 'block', fontSize: '0.9rem', marginBottom: '0.5rem' }}>Upload your own image</label>
+                    <input
+                      type="file"
+                      accept="image/*"
+                      onChange={e => {
+                        const file = e.target.files?.[0]
+                        if (file) {
+                          void handleAvatarUpload(file)
+                        }
+                      }}
+                      style={{ color: '#f0ead8' }}
+                    />
+                    {avatarUploadBusy && <p className="study-note-status" style={{ marginTop: '0.75rem' }}>Uploading avatar…</p>}
+                    {avatarUploadMessage && <p className="study-note-status" style={{ marginTop: '0.75rem' }}>{avatarUploadMessage}</p>}
+                  </div>
+                  {(avatarUrlInput || auth.avatarUrl) && (
+                    <div style={{ display: 'flex', alignItems: 'center', gap: '0.75rem', marginBottom: '0.75rem' }}>
+                      <img src={avatarUrlInput || auth.avatarUrl || ''} alt="Avatar preview" width={48} height={48} style={{ borderRadius: '50%', border: '1px solid #2a2518', objectFit: 'cover' }} />
+                      <p style={{ margin: 0, color: '#b9b09b', fontSize: '0.92rem' }}>Preview of your selected avatar. Save your profile to keep it.</p>
+                    </div>
+                  )}
                   <label style={{ display: 'block', fontSize: '0.9rem', marginBottom: '0.5rem' }}>Display Name (optional)</label>
                   <input
                     type="text"
@@ -1919,70 +2375,61 @@ export function StudyAccountPage() {
                     style={{ width: '100%', maxWidth: '420px', marginBottom: '0.75rem', padding: '0.5rem', border: '1px solid #3a3320', borderRadius: '4px', background: '#14130f', color: '#f0ead8' }}
                   />
                   <div>
-            <button type="button" className="btn-primary" disabled={profileBusy} onClick={handleProfileSave}>{profileBusy ? 'Saving...' : 'Save Display Name'}</button>
+                    <button type="button" className="btn-primary" disabled={profileBusy} onClick={handleProfileSave}>{profileBusy ? 'Saving...' : 'Save Profile'}</button>
                   </div>
                   {profileMessage && <p className="study-note-status" style={{ marginTop: '0.5rem' }}>{profileMessage}</p>}
-
+                </>
-          <div style={{ marginTop: '1.5rem' }}>
+              )}
-            <label className="contact-consent">
+              {accountModal === 'preferences' && (
+                <>
+                  <h2 id="account-modal-heading">Preferences</h2>
+                  <p style={{ marginTop: '0.5rem', marginBottom: '1rem', color: '#b9b09b' }}>Adjust how you receive study reminders and newsletter updates.</p>
+                  <div style={{ display: 'grid', gap: '0.75rem', marginBottom: '1rem' }}>
+                    <label className="contact-consent" style={{ display: 'flex', alignItems: 'center', gap: '0.75rem' }}>
+                      <input type="checkbox" checked={studyRemindersEnabled} onChange={e => setStudyRemindersEnabled(e.target.checked)} />
+                      <span>Send email reminders when a new lesson is released</span>
+                    </label>
+                    <label className="contact-consent" style={{ display: 'flex', alignItems: 'center', gap: '0.75rem' }}>
                       <input type="checkbox" checked={subscribeNewsletter} onChange={e => setSubscribeNewsletter(e.target.checked)} />
                       <span>Subscribe to newsletter updates</span>
                     </label>
-            <button type="button" className="btn-secondary" disabled={prefBusy} onClick={handlePreferenceSave} style={{ marginTop: '0.5rem' }}>
-              {prefBusy ? 'Saving...' : 'Save Preferences'}
-            </button>
-            {prefMessage && <p className="study-note-status" style={{ marginTop: '0.5rem' }}>{prefMessage}</p>}
                   </div>
-        </section>
+                  <button type="button" className="btn-primary" disabled={prefBusy} onClick={handlePreferenceSave}>{prefBusy ? 'Saving...' : 'Save Preferences'}</button>
-
+                  {prefMessage && <p className="study-note-status" style={{ marginTop: '0.75rem' }}>{prefMessage}</p>}
-        {divider}
+                </>
-
+              )}
-        <section style={{ marginBottom: '2rem' }}>
+              {accountModal === 'export' && (
-          <h2 style={{ marginTop: 0 }}>Change Email (Verification Required)</h2>
+                <>
-          <p style={{ fontSize: '0.9rem' }}>Enter your new email and current password. We will send a verification link to the new email.</p>
+                  <h2 id="account-modal-heading">Export Notes</h2>
-          <div style={{ display: 'flex', flexDirection: 'column', gap: '0.5rem', maxWidth: '420px' }}>
+                  <p style={{ marginTop: '0.5rem', marginBottom: '1rem', color: '#b9b09b' }}>Download all saved notes in a single document.</p>
-            <input type="email" value={emailNew} onChange={e => setEmailNew(e.target.value)} placeholder="new@email.com" style={{ padding: '0.5rem', border: '1px solid #3a3320', borderRadius: '4px', background: '#14130f', color: '#f0ead8' }} />
-            <input type="password" value={emailCurrentPassword} onChange={e => setEmailCurrentPassword(e.target.value)} placeholder="Current password" style={{ padding: '0.5rem', border: '1px solid #3a3320', borderRadius: '4px', background: '#14130f', color: '#f0ead8' }} />
-          </div>
-          <button type="button" className="btn-primary" disabled={emailBusy} onClick={handleRequestEmailChange} style={{ marginTop: '0.65rem' }}>
-            {emailBusy ? 'Sending...' : 'Send Verification Email'}
-          </button>
-          <p style={{ marginTop: '1rem', fontSize: '0.85rem' }}>Have a token? Paste it here to verify manually.</p>
-          <div style={{ display: 'flex', gap: '0.5rem', flexWrap: 'wrap' }}>
-            <input type="text" value={emailTokenInput} onChange={e => setEmailTokenInput(e.target.value)} placeholder="Verification token" style={{ minWidth: '260px', padding: '0.5rem', border: '1px solid #3a3320', borderRadius: '4px', background: '#14130f', color: '#f0ead8' }} />
-            <button type="button" className="btn-secondary" disabled={emailBusy || !emailTokenInput.trim()} onClick={handleVerifyTokenInput}>
-              {emailBusy ? 'Verifying...' : 'Verify Token'}
-            </button>
-          </div>
-          {emailMessage && <p className="study-note-status" style={{ marginTop: '0.5rem' }}>{emailMessage}</p>}
-        </section>
-
-        {divider}
-
-        <section style={{ marginBottom: '2rem' }}>
-          <h2 style={{ marginTop: 0 }}>Export My Notes</h2>
-          <p style={{ fontSize: '0.9rem' }}>Download all your saved lesson notes as a Word document (.docx).</p>
                   <button type="button" className="btn-primary" disabled={exporting} onClick={handleExport}>
                     {exporting ? 'Preparing...' : 'Download Notes (.docx)'}
                   </button>
-          {exportMessage && <p className="study-note-status" style={{ marginTop: '0.5rem' }}>{exportMessage}</p>}
+                  {exportMessage && <p className="study-note-status" style={{ marginTop: '0.75rem' }}>{exportMessage}</p>}
-        </section>
+                </>
-
+              )}
-        {divider}
+              {accountModal === 'changePassword' && (
-
+                <>
-        <section style={{ marginBottom: '2rem' }}>
+                  <h2 id="account-modal-heading">Change Password</h2>
-          <h2 style={{ marginTop: 0 }}>Change Password</h2>
+                  <p style={{ marginTop: '0.5rem', marginBottom: '1rem', color: '#b9b09b' }}>Use a strong password to keep your study materials and notes secure.</p>
-          <div style={{ display: 'flex', flexDirection: 'column', gap: '0.6rem', maxWidth: '420px' }}>
+                  <label style={{ display: 'block', marginBottom: '0.5rem' }}>Current password</label>
-            <input type="password" value={pwCurrent} onChange={e => setPwCurrent(e.target.value)} placeholder="Current password" autoComplete="current-password" style={{ padding: '0.5rem', border: '1px solid #3a3320', borderRadius: '4px', background: '#14130f', color: '#f0ead8' }} />
+                  <input type="password" value={pwCurrent} onChange={e => setPwCurrent(e.target.value)} placeholder="Current password" style={{ width: '100%', padding: '0.75rem', borderRadius: '8px', border: '1px solid #2a2518', background: '#14130f', color: '#f0ead8', marginBottom: '1rem' }} />
-            <input type="password" value={pwNew} onChange={e => setPwNew(e.target.value)} placeholder="New password" autoComplete="new-password" style={{ padding: '0.5rem', border: '1px solid #3a3320', borderRadius: '4px', background: '#14130f', color: '#f0ead8' }} />
+                  <label style={{ display: 'block', marginBottom: '0.5rem' }}>New password</label>
-            <input type="password" value={pwConfirm} onChange={e => setPwConfirm(e.target.value)} placeholder="Confirm new password" autoComplete="new-password" onKeyDown={e => e.key === 'Enter' && handleChangePassword()} style={{ padding: '0.5rem', border: '1px solid #3a3320', borderRadius: '4px', background: '#14130f', color: '#f0ead8' }} />
+                  <input type="password" value={pwNew} onChange={e => setPwNew(e.target.value)} placeholder="New password" style={{ width: '100%', padding: '0.75rem', borderRadius: '8px', border: '1px solid #2a2518', background: '#14130f', color: '#f0ead8', marginBottom: '1rem' }} />
-          </div>
+                  <label style={{ display: 'block', marginBottom: '0.5rem' }}>Confirm new password</label>
-          {pwMessage && <p style={{ color: '#e57373', fontSize: '0.875rem', marginTop: '0.5rem' }}>{pwMessage}</p>}
+                  <input type="password" value={pwConfirm} onChange={e => setPwConfirm(e.target.value)} placeholder="Confirm new password" style={{ width: '100%', padding: '0.75rem', borderRadius: '8px', border: '1px solid #2a2518', background: '#14130f', color: '#f0ead8', marginBottom: '1rem' }} />
-          {pwSuccess && <p style={{ color: '#81c784', fontSize: '0.875rem', marginTop: '0.5rem' }}>Password updated successfully.</p>}
+                  <div style={{ display: 'flex', gap: '0.75rem', flexWrap: 'wrap', marginBottom: '1rem' }}>
-          <button type="button" className="btn-primary" disabled={pwBusy} onClick={handleChangePassword} style={{ marginTop: '0.75rem' }}>
+                    <button type="button" className="btn-primary" disabled={pwBusy || !pwCurrent || !pwNew || !pwConfirm} onClick={handleChangePassword}>
-            {pwBusy ? 'Updating...' : 'Update Password'}
+                      {pwBusy ? 'Saving…' : 'Update Password'}
                     </button>
-        </section>
+                  </div>
+                  {pwMessage && <p className="study-note-status" style={{ marginTop: '1rem' }}>{pwMessage}</p>}
+                  {pwSuccess && <p className="study-note-status" style={{ marginTop: '1rem', color: '#a5d6a7' }}>Password changed successfully.</p>}
+                </>
+              )}
+            </div>
+          </div>
+        )}
 
         {divider}
 
@@ -2036,6 +2483,186 @@ export function StudyAccountPage() {
   )
 }
 
+export function StudyQuizPage({ content }: Props) {
+  const { studySlug, sectionId } = useParams<{ studySlug: string, sectionId: string }>()
+  const navigate = useNavigate()
+  const studies = getStudies(content)
+  const study = getStudyBySlug(studies, studySlug)
+  const section = study ? getSectionById(study.sections, sectionId) : undefined
+
+  const [auth, setAuth] = useState<StudyAuthState>({ checked: false, authenticated: false, username: '', enrolledStudySlugs: [], displayName: '', subscribeNewsletter: true, studyRemindersEnabled: false, avatarUrl: '' })
+  const [answers, setAnswers] = useState<string[]>([])
+  const [loading, setLoading] = useState(true)
+  const [saving, setSaving] = useState(false)
+  const [message, setMessage] = useState('')
+  const [error, setError] = useState('')
+
+  useEffect(() => {
+    let cancelled = false
+    async function load() {
+      if (!studySlug || !sectionId) return
+      setLoading(true)
+      setError('')
+      try {
+        const authData = await readJson<StudyAuthStatusResponse>('/api/study-auth/status')
+        if (cancelled) return
+        const enrolledStudySlugs = normalizeEnrolledStudySlugs(authData.enrolledStudySlugs)
+        setAuth({
+          checked: true,
+          authenticated: Boolean(authData.authenticated),
+          username: authData.username ?? '',
+          displayName: authData.displayName ?? '',
+          subscribeNewsletter: authData.subscribeNewsletter !== false,
+          studyRemindersEnabled: authData.studyRemindersEnabled === true,
+          avatarUrl: authData.avatarUrl ?? '',
+          enrolledStudySlugs,
+        })
+
+        if (!authData.authenticated || !enrolledStudySlugs.includes(studySlug?.trim().toLowerCase())) {
+          return
+        }
+
+        const data = await readJson<{ studySlug: string; sectionId: string; answers: string[] }>(`/api/study-quiz/${encodeURIComponent(studySlug)}/${encodeURIComponent(sectionId)}`)
+        if (cancelled) return
+        setAnswers(Array.isArray(data.answers) ? data.answers : [])
+      } catch (err) {
+        if (cancelled) return
+        setError(err instanceof Error ? err.message : 'Unable to load quiz answers.')
+      } finally {
+        if (cancelled) return
+        setLoading(false)
+      }
+    }
+    void load()
+    return () => {
+      cancelled = true
+    }
+  }, [studySlug, sectionId])
+
+  async function saveQuiz() {
+    if (!studySlug || !sectionId || !study || !section) return
+    setSaving(true)
+    setMessage('')
+    try {
+      await readJson<{ ok: boolean; answers: string[] }>(`/api/study-quiz/${encodeURIComponent(studySlug)}/${encodeURIComponent(sectionId)}`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ answers }),
+      })
+      setMessage('Quiz answers saved.')
+    } catch (err) {
+      setError(err instanceof Error ? err.message : 'Unable to save quiz answers.')
+    } finally {
+      setSaving(false)
+    }
+  }
+
+  if (!study || !section) {
+    return (
+      <main className="thanks-page" aria-label="Quiz not found">
+        <div className="thanks-card">
+          <p className="eyebrow">Study Quiz</p>
+          <h1>Quiz not found</h1>
+          <p>The lesson quiz you requested is not available.</p>
+          <Link to="/study" className="btn-primary">Back to Studies</Link>
+        </div>
+      </main>
+    )
+  }
+
+  const sectionQuestions = section.studyQuestions ?? []
+  const canSubmit = sectionQuestions.length > 0
+  const isEnrolled = auth.authenticated && normalizeEnrolledStudySlugs(auth.enrolledStudySlugs).includes(study.slug)
+
+  if (!auth.checked) {
+    return (
+      <main className="thanks-page" aria-label="Loading quiz">
+        <div className="thanks-card"><p>Loading quiz...</p></div>
+      </main>
+    )
+  }
+
+  if (!auth.authenticated) {
+    return (
+      <main className="thanks-page" aria-label="Sign in required">
+        <div className="thanks-card">
+          <p className="eyebrow">Study Quiz</p>
+          <h1>Sign In Required</h1>
+          <p>You need to sign in before you can view and save quiz answers.</p>
+          <Link to="/study/signup" className="btn-primary">Sign In</Link>
+        </div>
+      </main>
+    )
+  }
+
+  if (!isEnrolled) {
+    return (
+      <main className="thanks-page" aria-label="Enrollment required">
+        <div className="thanks-card">
+          <p className="eyebrow">Study Quiz</p>
+          <h1>Enroll to Access the Quiz</h1>
+          <p>Please enroll in {study.title} to open the quiz for this lesson.</p>
+          <Link to={`/study/${study.slug}`} className="btn-primary">Go to Study</Link>
+        </div>
+      </main>
+    )
+  }
+
+  return (
+    <main className="study-index-page" aria-label="Study quiz">
+      <section className="section-study-course-hero">
+        <div className="section-inner study-course-hero-inner">
+          <p className="eyebrow">Quiz</p>
+          <h1>{section.title}</h1>
+          <p className="study-course-hero-copy">Answer the lesson questions below and save your responses for later review.</p>
+          <div className="study-course-hero-actions">
+            <Link to={`/study/${study.slug}/${section.id}`} className="btn-secondary">Back to Lesson</Link>
+          </div>
+        </div>
+      </section>
+
+      <section className="section-study-module" style={{ paddingTop: '2rem' }}>
+        <div className="section-inner">
+          {loading ? (
+            <p>Loading quiz...</p>
+          ) : error ? (
+            <p className="study-note-status">{error}</p>
+          ) : !canSubmit ? (
+            <article className="study-class-block">
+              <h2>No Quiz Questions</h2>
+              <p className="study-detail-copy">This lesson does not have quiz questions configured yet.</p>
+            </article>
+          ) : (
+            <form onSubmit={e => { e.preventDefault(); saveQuiz() }}>
+              {sectionQuestions.map((question, index) => (
+                <div key={index} style={{ marginBottom: '1.25rem' }}>
+                  <p style={{ margin: '0 0 0.5rem', fontWeight: 600 }}>{`${index + 1}. ${question}`}</p>
+                  <textarea
+                    rows={4}
+                    value={answers[index] ?? ''}
+                    onChange={e => setAnswers(prev => {
+                      const next = [...prev]
+                      next[index] = e.target.value
+                      return next
+                    })}
+                    placeholder="Your answer..."
+                    style={{ width: '100%', padding: '0.9rem', borderRadius: '12px', border: '1px solid #2a2518', background: '#14130f', color: '#f0ead8' }}
+                  />
+                </div>
+              ))}
+              <div style={{ display: 'flex', gap: '0.75rem', flexWrap: 'wrap' }}>
+                <button type="submit" className="btn-primary" disabled={saving}>{saving ? 'Saving...' : 'Save Quiz Answers'}</button>
+                <button type="button" className="btn-secondary" onClick={() => navigate(`/study/${study.slug}/${section.id}`)}>Back to Lesson</button>
+              </div>
+              {message && <p className="study-note-status" style={{ marginTop: '1rem' }}>{message}</p>}
+            </form>
+          )}
+        </div>
+      </section>
+    </main>
+  )
+}
+
 export function StudyCommunityPage({ content }: Props) {
   const { studySlug } = useParams<{ studySlug: string }>()
   const location = useLocation()