diff --git a/package.json b/package.json
index 95e785c..08a1d82 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "siteforge",
   "private": true,
-  "version": "2.10.6",
+  "version": "2.10.7",
   "type": "module",
   "scripts": {
     "dev": "vite",
diff --git a/src/App.css b/src/App.css
index 2f226b3..f94fe9d 100644
--- a/src/App.css
+++ b/src/App.css
@@ -4033,6 +4033,129 @@
   padding: 0;
 }
 
+/* ── Study index: progress, chapters, lesson badges ── */
+.study-course-meta { margin-bottom: 1.25rem; }
+
+.study-progress {
+  max-width: 460px;
+  margin: 0 0 1.75rem;
+}
+
+.study-progress-label {
+  display: flex;
+  justify-content: space-between;
+  gap: 1rem;
+  margin-bottom: 0.45rem;
+  font-size: 0.82rem;
+  color: var(--brand-muted);
+  letter-spacing: 0.04em;
+}
+
+.study-progress-label strong {
+  color: var(--brand-warm-white);
+  font-weight: 600;
+}
+
+.study-progress-track {
+  height: 8px;
+  border-radius: 999px;
+  background: rgba(201, 168, 76, 0.16);
+  overflow: hidden;
+}
+
+.study-progress-fill {
+  height: 100%;
+  border-radius: 999px;
+  background: linear-gradient(90deg, #c9a84c, #e0c67a);
+  transition: width 0.4s ease;
+}
+
+.study-chapter + .study-chapter { margin-top: 1.25rem; }
+
+.study-chapter > summary {
+  list-style: none;
+  cursor: pointer;
+}
+
+.study-chapter > summary::-webkit-details-marker { display: none; }
+
+.study-chapter > summary h3::before {
+  content: '▸';
+  display: inline-block;
+  margin-right: 0.55rem;
+  color: var(--brand-gold);
+  font-size: 0.9em;
+  transition: transform 0.15s ease;
+}
+
+.study-chapter[open] > summary h3::before { transform: rotate(90deg); }
+
+/* Upcoming lessons stay compact until they release */
+.study-module-row--coming {
+  grid-template-columns: 1fr;
+  padding: 0.7rem 1.05rem;
+}
+
+.study-module-row--coming .study-module-row-right,
+.study-module-row--coming .study-module-row-left > p { display: none; }
+
+.study-module-row--coming .study-module-row-left h3 { margin: 0.1rem 0 0; font-size: 1.05rem; }
+
+
+.study-chapter-head {
+  display: flex;
+  align-items: baseline;
+  justify-content: space-between;
+  gap: 1rem;
+  margin: 0 0 0.75rem;
+  padding-bottom: 0.5rem;
+  border-bottom: 1px solid rgba(201, 168, 76, 0.2);
+}
+
+.study-chapter-head h3 {
+  margin: 0;
+  font-family: var(--brand-font-heading);
+  font-size: 1.3rem;
+  color: #e8d9b5;
+}
+
+.study-chapter-head span {
+  font-size: 0.8rem;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  color: var(--brand-muted);
+}
+
+.study-lesson-meta {
+  display: flex;
+  align-items: center;
+  flex-wrap: wrap;
+  gap: 0.5rem;
+  margin-bottom: 0.25rem;
+}
+
+.lesson-badge {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.3rem;
+  padding: 0.18rem 0.6rem;
+  border-radius: 999px;
+  font-size: 0.72rem;
+  font-weight: 600;
+  letter-spacing: 0.04em;
+  border: 1px solid transparent;
+}
+
+.lesson-badge--new { background: rgba(76, 175, 80, 0.16); color: #7fd484; border-color: rgba(76, 175, 80, 0.4); }
+.lesson-badge--coming { background: rgba(255, 183, 77, 0.14); color: #f0b45c; border-color: rgba(255, 183, 77, 0.4); }
+.lesson-badge--enroll { background: rgba(201, 168, 76, 0.12); color: var(--brand-gold); border-color: rgba(201, 168, 76, 0.4); }
+.lesson-badge--locked { background: rgba(255, 255, 255, 0.05); color: var(--brand-muted); border-color: rgba(255, 255, 255, 0.14); }
+.lesson-badge--done { background: rgba(111, 207, 151, 0.12); color: #6fcf97; border-color: rgba(111, 207, 151, 0.4); }
+
+.study-module-row--done {
+  border-left: 3px solid rgba(111, 207, 151, 0.7);
+}
+
 /* ── Sign in / Create account (split layout) ── */
 .auth-page {
   min-height: 70vh;
@@ -4136,6 +4259,10 @@
 
 .auth-card-eyebrow { margin: 0; }
 
+.auth-card--center { text-align: center; }
+
+.auth-card--center .study-signup-actions { justify-content: center; }
+
 .auth-card .study-signup-form { margin-top: 0.5rem; }
 
 .auth-card .study-signup-actions { margin-top: 0.75rem; }
diff --git a/src/studyPages.tsx b/src/studyPages.tsx
index 93ff50a..e8e89e2 100644
--- a/src/studyPages.tsx
+++ b/src/studyPages.tsx
@@ -1639,7 +1639,9 @@ export function ColossiansStudyIndexPage({ content }: Props) {
   // Resume at the first released lesson the student hasn't finished yet
   const resumeSection = releasedSections.find(item => !studyProgress.completedSectionIds.includes(item.id)) ?? firstReleasedSection
   const hasStarted = enrolled && studyProgress.completedSectionIds.length > 0
-  const populatedChapterCount = chapterSummaries.filter(chapter => chapter.lessonCount > 0).length
+  const resumeChapter = resumeSection?.chapter ?? chapterSummaries.find(chapter => chapter.lessonCount > 0)?.chapter
+  const completedCount = sections.filter(item => studyProgress.completedSectionIds.includes(item.id)).length
+  const chaptersWithLessons = chapterSummaries.filter(chapter => chapter.lessonCount > 0)
 
   async function enrollInStudy() {
     if (!study) return
@@ -1670,16 +1672,22 @@ export function ColossiansStudyIndexPage({ content }: Props) {
           <h1>{study.title}</h1>
           <p className="study-course-hero-copy">{study.description}</p>
           <div className="study-course-meta">
-            <span>{releasedSections.length} lessons available now</span>
-            <span>{chapterSummaries.length} chapters</span>
-            <span>{populatedChapterCount} chapters with lessons</span>
-            {enrolled && !progressLoading ? (
-              <span>{studyProgress.completedSectionIds.length} lessons completed</span>
-            ) : null}
+            <span>{releasedSections.length} of {sections.length} lessons available</span>
             <span>Text + commentary + discussion</span>
             <span>Student notes enabled</span>
             {isSelfPaced && <span>Finished study — go at your own pace</span>}
           </div>
+          {enrolled && !progressLoading && sections.length > 0 && (
+            <div className="study-progress" role="group" aria-label="Your progress">
+              <div className="study-progress-label">
+                <span>Your progress</span>
+                <strong>{completedCount} of {sections.length} lessons completed</strong>
+              </div>
+              <div className="study-progress-track" role="progressbar" aria-valuemin={0} aria-valuemax={sections.length} aria-valuenow={completedCount}>
+                <div className="study-progress-fill" style={{ width: `${Math.round((completedCount / sections.length) * 100)}%` }} />
+              </div>
+            </div>
+          )}
           <div className="study-course-hero-actions">
             {enrolled && resumeSection && <Link to={`/study/${study.slug}/${resumeSection.id}`} className="btn-primary">{hasStarted ? 'Resume Where You Left Off' : 'Start Class'}</Link>}
             {!auth.authenticated && <Link to="/study/signup" className="btn-primary">Sign In to Enroll</Link>}
@@ -1688,10 +1696,9 @@ export function ColossiansStudyIndexPage({ content }: Props) {
                 {enrolling ? 'Enrolling...' : 'Enroll in This Study'}
               </button>
             )}
-            {auth.authenticated && <Link to="/study/account" className="btn-secondary">My Account</Link>}
             {enrolled && <Link to={`/study/${study.slug}/notes`} className="btn-secondary">My Notes</Link>}
             {enrolled && <Link to={`/study/${study.slug}/community`} className="btn-secondary">Community</Link>}
-            <Link to="/study" className="btn-secondary">Back to Studies</Link>
+            {auth.authenticated && <Link to="/study/account" className="btn-secondary">My Account</Link>}
           </div>
           {enrollMessage && <p className="study-note-status" style={{ marginTop: '0.75rem' }}>{enrollMessage}</p>}
         </div>
@@ -1737,47 +1744,65 @@ export function ColossiansStudyIndexPage({ content }: Props) {
               <p>Course Lessons</p>
               <h2>{study.title}</h2>
             </div>
-            <div className="study-module-list">
-              {sections.map((section, sectionIdx) => {
-                const lessonNumber = getLessonNumber(sections, section.id)
-                const isNew = isNewLesson(section)
-                const coming = isComingSoon(section)
-                const prevSection = sectionIdx > 0 ? sections[sectionIdx - 1] : null
-                const prevCompleted = !prevSection || studyProgress.completedSectionIds.includes(prevSection.id)
-                const lockedByProgress = enrolled && !isSelfPaced && !coming && sectionIdx > 0 && !prevCompleted && !studyProgress.completedSectionIds.includes(section.id)
-                const isDisabled = coming || !enrolled || lockedByProgress
+            {chaptersWithLessons.map(({ chapter }) => {
+              const chapterSections = sections.filter(item => item.chapter === chapter)
+              const chapterDone = chapterSections.filter(item => studyProgress.completedSectionIds.includes(item.id)).length
+              return (
+                <details className="study-chapter" key={chapter} open={chaptersWithLessons.length === 1 || chapter === resumeChapter}>
+                  <summary className="study-chapter-head">
+                    <h3>Chapter {chapter}</h3>
+                    <span>
+                      {enrolled && !progressLoading
+                        ? `${chapterDone} of ${chapterSections.length} completed`
+                        : `${chapterSections.length} ${chapterSections.length === 1 ? 'lesson' : 'lessons'}`}
+                    </span>
+                  </summary>
+                  <div className="study-module-list">
+                    {chapterSections.map(section => {
+                      const sectionIdx = sections.indexOf(section)
+                      const lessonNumber = sectionIdx + 1
+                      const isNew = isNewLesson(section)
+                      const coming = isComingSoon(section)
+                      const prevSection = sectionIdx > 0 ? sections[sectionIdx - 1] : null
+                      const prevCompleted = !prevSection || studyProgress.completedSectionIds.includes(prevSection.id)
+                      const completed = studyProgress.completedSectionIds.includes(section.id)
+                      const lockedByProgress = enrolled && !isSelfPaced && !coming && sectionIdx > 0 && !prevCompleted && !completed
+                      const isDisabled = coming || !enrolled || lockedByProgress
 
-                return (
-                  <Link key={section.id} to={isDisabled ? '#' : `/study/${study.slug}/${section.id}`} className={`study-module-row${isDisabled ? ' study-module-row--disabled' : ''}`} onClick={e => isDisabled && e.preventDefault()}>
-                    <div className="study-module-row-left">
-                      <div style={{ display: 'flex', alignItems: 'center', gap: '0.5rem', marginBottom: '0.25rem' }}>
-                        <p className="study-module-lesson">Lesson {lessonNumber}</p>
-                        {isNew && <span style={{ backgroundColor: '#4caf50', color: '#fff', padding: '0.2rem 0.5rem', borderRadius: '3px', fontSize: '0.75rem', fontWeight: '600' }}>New</span>}
-                        {coming && <span style={{ backgroundColor: '#ffb74d', color: '#333', padding: '0.2rem 0.5rem', borderRadius: '3px', fontSize: '0.75rem', fontWeight: '600' }}>Coming {getReleaseDateDisplay(section)}</span>}
-                        {!coming && !enrolled && <span style={{ backgroundColor: '#ef5350', color: '#fff', padding: '0.2rem 0.5rem', borderRadius: '3px', fontSize: '0.75rem', fontWeight: '600' }}>Enroll to open</span>}
-                        {lockedByProgress && <span style={{ backgroundColor: '#5a5440', color: '#f0e9cc', padding: '0.2rem 0.5rem', borderRadius: '3px', fontSize: '0.75rem', fontWeight: '600' }}>Complete previous lesson</span>}
-                        {enrolled && !lockedByProgress && studyProgress.completedSectionIds.includes(section.id) && (
-                          <span style={{ display: 'inline-flex', alignItems: 'center', gap: '0.3rem', backgroundColor: '#1a3a2a', color: '#6fcf97', padding: '0.2rem 0.55rem', borderRadius: '3px', fontSize: '0.75rem', fontWeight: '600' }}>
-                            <svg width="13" height="13" viewBox="0 0 13 13" fill="none" aria-hidden="true">
-                              <circle cx="6.5" cy="6.5" r="6" stroke="#6fcf97" strokeWidth="1.2" />
-                              <path d="M3.5 6.5l2 2 3.5-3.5" stroke="#6fcf97" strokeWidth="1.4" strokeLinecap="round" strokeLinejoin="round" />
-                            </svg>
-                            Completed
-                          </span>
-                        )}
-                      </div>
-                      <h3>{section.title}</h3>
-                      <p>{section.summary}</p>
-                    </div>
-                    <div className="study-module-row-right">
-                      <p className="study-section-reference">{section.reference}</p>
-                      <p className="study-module-focus">Focus question</p>
-                      <p>{getPrimaryQuestion(section)}</p>
-                    </div>
-                  </Link>
-                )
-              })}
-            </div>
+                      return (
+                        <Link key={section.id} to={isDisabled ? '#' : `/study/${study.slug}/${section.id}`} className={`study-module-row${isDisabled ? ' study-module-row--disabled' : ''}${coming ? ' study-module-row--coming' : ''}${completed && enrolled ? ' study-module-row--done' : ''}`} aria-disabled={isDisabled || undefined} onClick={e => isDisabled && e.preventDefault()}>
+                          <div className="study-module-row-left">
+                            <div className="study-lesson-meta">
+                              <p className="study-module-lesson">Lesson {lessonNumber}</p>
+                              {isNew && <span className="lesson-badge lesson-badge--new">New</span>}
+                              {coming && <span className="lesson-badge lesson-badge--coming">Coming {getReleaseDateDisplay(section)}</span>}
+                              {!coming && !enrolled && <span className="lesson-badge lesson-badge--enroll">Enroll to open</span>}
+                              {lockedByProgress && <span className="lesson-badge lesson-badge--locked">Finish the previous lesson first</span>}
+                              {enrolled && !lockedByProgress && completed && (
+                                <span className="lesson-badge lesson-badge--done">
+                                  <svg width="13" height="13" viewBox="0 0 13 13" fill="none" aria-hidden="true">
+                                    <circle cx="6.5" cy="6.5" r="6" stroke="currentColor" strokeWidth="1.2" />
+                                    <path d="M3.5 6.5l2 2 3.5-3.5" stroke="currentColor" strokeWidth="1.4" strokeLinecap="round" strokeLinejoin="round" />
+                                  </svg>
+                                  Completed
+                                </span>
+                              )}
+                            </div>
+                            <h3>{section.title}</h3>
+                            <p>{section.summary}</p>
+                          </div>
+                          <div className="study-module-row-right">
+                            <p className="study-section-reference">{section.reference}</p>
+                            <p className="study-module-focus">Focus question</p>
+                            <p>{getPrimaryQuestion(section)}</p>
+                          </div>
+                        </Link>
+                      )
+                    })}
+                  </div>
+                </details>
+              )
+            })}
           </div>
         </section>
       )}
@@ -2169,15 +2194,16 @@ export function ColossiansStudySectionPage({ content }: Props) {
 
   if (!auth.authenticated) {
     return (
-      <main className="thanks-page" aria-label="Sign in required">
-        <div className="thanks-card">
-          <p className="eyebrow">{study.title}</p>
-          <h1>Sign In to Continue</h1>
-          <p>Create a free account or sign in to access lessons and save your personal notes.</p>
-          <div className="study-signup-actions" style={{ marginTop: '1.5rem' }}>
-            <Link to="/study/signup" className="btn-primary">Create Account or Sign In</Link>
-            <Link to="/study/account" className="btn-secondary">My Account</Link>
-            <Link to={`/study/${study.slug}`} className="btn-secondary">Back to Lessons</Link>
+      <main className="auth-page" aria-label="Sign in required">
+        <div className="auth-shell auth-shell--single">
+          <div className="auth-card auth-card--center">
+            <p className="eyebrow">{study.title}</p>
+            <h1>Sign In to Continue</h1>
+            <p>Create a free account or sign in to open lessons and save your personal notes.</p>
+            <div className="study-signup-actions">
+              <Link to="/study/signup" className="btn-primary">Create Account or Sign In</Link>
+            </div>
+            <p className="auth-footer-links"><Link to={`/study/${study.slug}`}>← Back to lessons</Link></p>
           </div>
         </div>
       </main>
@@ -2186,19 +2212,20 @@ export function ColossiansStudySectionPage({ content }: Props) {
 
   if (!isEnrolled) {
     return (
-      <main className="thanks-page" aria-label="Enrollment required">
-        <div className="thanks-card">
-          <p className="eyebrow">{study.title}</p>
-          <h1>Enrollment Required</h1>
-          <p>You need to enroll in this study before entering lessons.</p>
-          <div className="study-signup-actions" style={{ marginTop: '1.5rem' }}>
-            <button type="button" className="btn-primary" disabled={enrollBusy} onClick={enrollInCurrentStudy}>
-              {enrollBusy ? 'Enrolling...' : `Enroll in ${study.title}`}
-            </button>
-            <Link to="/study/account" className="btn-secondary">My Account</Link>
-            <Link to={`/study/${study.slug}`} className="btn-secondary">Back to Study</Link>
+      <main className="auth-page" aria-label="Enrollment required">
+        <div className="auth-shell auth-shell--single">
+          <div className="auth-card auth-card--center">
+            <p className="eyebrow">{study.title}</p>
+            <h1>Enroll to Begin</h1>
+            <p>Enroll in this study to open its lessons and keep your notes and progress.</p>
+            <div className="study-signup-actions">
+              <button type="button" className="btn-primary" disabled={enrollBusy} onClick={enrollInCurrentStudy}>
+                {enrollBusy ? 'Enrolling...' : `Enroll in ${study.title}`}
+              </button>
+            </div>
+            {enrollMessage && <p className="study-note-status" role="status">{enrollMessage}</p>}
+            <p className="auth-footer-links"><Link to={`/study/${study.slug}`}>← Back to study</Link></p>
           </div>
-          {enrollMessage && <p className="study-note-status" style={{ marginTop: '0.75rem' }}>{enrollMessage}</p>}
         </div>
       </main>
     )