Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode #331

Closed
#335
Closed
Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode#331
#335
Assignees
Darkest-Teddy
Labels
bugSomething isn't workingfrontendFrontend / UI

Description

@AndresL230
AndresL230
opened on Jul 9, 2026

Summary

In the chat/Tutor feature (/learn), when the layout preference is the horizontal top nav bar (not the sidebar), the page becomes scrollable and the sticky top nav scrolls out of view. The nav should stay fixed and only the chat body should scroll.

Repro

  1. Set layout preference to the horizontal top nav shell (not sidebar).
  2. Open /learn and start / resume a tutor session.
  3. Scroll — the whole screen scrolls and the 56px top nav bar disappears off the top.

Only happens in horizontal-nav mode; the sidebar layout is unaffected.

Root cause (grounded in code)

ShellFrame (frontend/src/components/ShellFrame.tsx) builds the horizontal layout as a 100vh flex column: TopNav (fixed 56px, position: sticky) + <main flex:1 overflowY:auto>. So main's usable height is 100vh − 56px.

But the chat screen hardcodes height: 100vh on its root containers:

  • frontend/src/components/screens/Learn.tsx:434 (entry screen)
  • frontend/src/components/screens/Learn.tsx:503 (active session)

A 100vh child inside a 100vh − 56px container overflows main by exactly the nav height, so main becomes scrollable and the content (and with it the visual anchor of the nav) shifts. In sidebar mode the SideNav is a full-height row sibling, so 100vh matches the viewport and the bug doesn't manifest — which is why it's horizontal-mode-only.

TOP_NAV_HEIGHT (56) is exported from TopNav.tsx:75 but is never used in any content-height calculation.

Fix direction

  • The chat screen should fill its container (height: 100% / rely on main's flex:1) instead of height: 100vh, or subtract TOP_NAV_HEIGHT in horizontal mode.
  • Same height: 100vh pattern affects other screens and likely has the same bug: Quiz.tsx, Library.tsx, notetaker/page.tsx, course-planner/page.tsx, Social.tsx. Worth fixing generally (a shared full-height wrapper) rather than one-off per screen.

Acceptance

  • In horizontal-nav mode on /learn, the top nav stays fixed and only the chat message area scrolls; no whole-page scroll pushes the nav off-screen.

Metadata

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bugSomething isn't workingfrontendFrontend / UI

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    , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
     blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

    Skip to content
    Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode #331
    Closed
    #335
    Closed
    Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode#331
    #335
    Assignees
    Darkest-Teddy
    Labels
    bugSomething isn't workingfrontendFrontend / UI
    Description
    @AndresL230
    AndresL230
    opened on Jul 9, 2026
    Summary
    In the chat/Tutor feature (/learn), when the layout preference is the horizontal top nav bar (not the sidebar), the page becomes scrollable and the sticky top nav scrolls out of view. The nav should stay fixed and only the chat body should scroll.
    Repro
    1. Set layout preference to the horizontal top nav shell (not sidebar).
    2. Open /learn and start / resume a tutor session.
    3. Scroll — the whole screen scrolls and the 56px top nav bar disappears off the top.
    Only happens in horizontal-nav mode; the sidebar layout is unaffected.
    Root cause (grounded in code)
    ShellFrame (frontend/src/components/ShellFrame.tsx) builds the horizontal layout as a 100vh flex column: TopNav (fixed 56px, position: sticky) + <main flex:1 overflowY:auto>. So main's usable height is 100vh − 56px.
    But the chat screen hardcodes height: 100vh on its root containers:
    • frontend/src/components/screens/Learn.tsx:434 (entry screen)
    • frontend/src/components/screens/Learn.tsx:503 (active session)
    A 100vh child inside a 100vh − 56px container overflows main by exactly the nav height, so main becomes scrollable and the content (and with it the visual anchor of the nav) shifts. In sidebar mode the SideNav is a full-height row sibling, so 100vh matches the viewport and the bug doesn't manifest — which is why it's horizontal-mode-only.
    TOP_NAV_HEIGHT (56) is exported from TopNav.tsx:75 but is never used in any content-height calculation.
    Fix direction
    • The chat screen should fill its container (height: 100% / rely on main's flex:1) instead of height: 100vh, or subtract TOP_NAV_HEIGHT in horizontal mode.
    • Same height: 100vh pattern affects other screens and likely has the same bug: Quiz.tsx, Library.tsx, notetaker/page.tsx, course-planner/page.tsx, Social.tsx. Worth fixing generally (a shared full-height wrapper) rather than one-off per screen.
    Acceptance
    • In horizontal-nav mode on /learn, the top nav stays fixed and only the chat message area scrolls; no whole-page scroll pushes the nav off-screen.
    Metadata
    Metadata
    Assignees
    Labels
    bugSomething isn't workingfrontendFrontend / UI
    Type
    No type
    Projects
    No projects
      Milestone
      No milestone
      Relationships
      None yet
      Development
      No branches or pull requests
      Issue actions
      
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

      Skip to content
      Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode #331
      Closed
      #335
      Closed
      Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode#331
      #335
      Assignees
      Darkest-Teddy
      Labels
      bugSomething isn't workingfrontendFrontend / UI
      Description
      @AndresL230
      AndresL230
      opened on Jul 9, 2026
      Summary
      In the chat/Tutor feature (/learn), when the layout preference is the horizontal top nav bar (not the sidebar), the page becomes scrollable and the sticky top nav scrolls out of view. The nav should stay fixed and only the chat body should scroll.
      Repro
      1. Set layout preference to the horizontal top nav shell (not sidebar).
      2. Open /learn and start / resume a tutor session.
      3. Scroll — the whole screen scrolls and the 56px top nav bar disappears off the top.
      Only happens in horizontal-nav mode; the sidebar layout is unaffected.
      Root cause (grounded in code)
      ShellFrame (frontend/src/components/ShellFrame.tsx) builds the horizontal layout as a 100vh flex column: TopNav (fixed 56px, position: sticky) + <main flex:1 overflowY:auto>. So main's usable height is 100vh − 56px.
      But the chat screen hardcodes height: 100vh on its root containers:
      • frontend/src/components/screens/Learn.tsx:434 (entry screen)
      • frontend/src/components/screens/Learn.tsx:503 (active session)
      A 100vh child inside a 100vh − 56px container overflows main by exactly the nav height, so main becomes scrollable and the content (and with it the visual anchor of the nav) shifts. In sidebar mode the SideNav is a full-height row sibling, so 100vh matches the viewport and the bug doesn't manifest — which is why it's horizontal-mode-only.
      TOP_NAV_HEIGHT (56) is exported from TopNav.tsx:75 but is never used in any content-height calculation.
      Fix direction
      • The chat screen should fill its container (height: 100% / rely on main's flex:1) instead of height: 100vh, or subtract TOP_NAV_HEIGHT in horizontal mode.
      • Same height: 100vh pattern affects other screens and likely has the same bug: Quiz.tsx, Library.tsx, notetaker/page.tsx, course-planner/page.tsx, Social.tsx. Worth fixing generally (a shared full-height wrapper) rather than one-off per screen.
      Acceptance
      • In horizontal-nav mode on /learn, the top nav stays fixed and only the chat message area scrolls; no whole-page scroll pushes the nav off-screen.
      Metadata
      Metadata
      Assignees
      Labels
      bugSomething isn't workingfrontendFrontend / UI
      Type
      No type
      Projects
      No projects
        Milestone
        No milestone
        Relationships
        None yet
        Development
        No branches or pull requests
        Issue actions
        
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

        Skip to content
        Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode #331
        Closed
        #335
        Closed
        Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode#331
        #335
        Assignees
        Darkest-Teddy
        Labels
        bugSomething isn't workingfrontendFrontend / UI
        Description
        @AndresL230
        AndresL230
        opened on Jul 9, 2026
        Summary
        In the chat/Tutor feature (/learn), when the layout preference is the horizontal top nav bar (not the sidebar), the page becomes scrollable and the sticky top nav scrolls out of view. The nav should stay fixed and only the chat body should scroll.
        Repro
        1. Set layout preference to the horizontal top nav shell (not sidebar).
        2. Open /learn and start / resume a tutor session.
        3. Scroll — the whole screen scrolls and the 56px top nav bar disappears off the top.
        Only happens in horizontal-nav mode; the sidebar layout is unaffected.
        Root cause (grounded in code)
        ShellFrame (frontend/src/components/ShellFrame.tsx) builds the horizontal layout as a 100vh flex column: TopNav (fixed 56px, position: sticky) + <main flex:1 overflowY:auto>. So main's usable height is 100vh − 56px.
        But the chat screen hardcodes height: 100vh on its root containers:
        • frontend/src/components/screens/Learn.tsx:434 (entry screen)
        • frontend/src/components/screens/Learn.tsx:503 (active session)
        A 100vh child inside a 100vh − 56px container overflows main by exactly the nav height, so main becomes scrollable and the content (and with it the visual anchor of the nav) shifts. In sidebar mode the SideNav is a full-height row sibling, so 100vh matches the viewport and the bug doesn't manifest — which is why it's horizontal-mode-only.
        TOP_NAV_HEIGHT (56) is exported from TopNav.tsx:75 but is never used in any content-height calculation.
        Fix direction
        • The chat screen should fill its container (height: 100% / rely on main's flex:1) instead of height: 100vh, or subtract TOP_NAV_HEIGHT in horizontal mode.
        • Same height: 100vh pattern affects other screens and likely has the same bug: Quiz.tsx, Library.tsx, notetaker/page.tsx, course-planner/page.tsx, Social.tsx. Worth fixing generally (a shared full-height wrapper) rather than one-off per screen.
        Acceptance
        • In horizontal-nav mode on /learn, the top nav stays fixed and only the chat message area scrolls; no whole-page scroll pushes the nav off-screen.
        Metadata
        Metadata
        Assignees
        Labels
        bugSomething isn't workingfrontendFrontend / UI
        Type
        No type
        Projects
        No projects
          Milestone
          No milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

          Skip to content
          Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode #331
          Closed
          #335
          Closed
          Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode#331
          #335
          Assignees
          Darkest-Teddy
          Labels
          bugSomething isn't workingfrontendFrontend / UI
          Description
          @AndresL230
          AndresL230
          opened on Jul 9, 2026
          Summary
          In the chat/Tutor feature (/learn), when the layout preference is the horizontal top nav bar (not the sidebar), the page becomes scrollable and the sticky top nav scrolls out of view. The nav should stay fixed and only the chat body should scroll.
          Repro
          1. Set layout preference to the horizontal top nav shell (not sidebar).
          2. Open /learn and start / resume a tutor session.
          3. Scroll — the whole screen scrolls and the 56px top nav bar disappears off the top.
          Only happens in horizontal-nav mode; the sidebar layout is unaffected.
          Root cause (grounded in code)
          ShellFrame (frontend/src/components/ShellFrame.tsx) builds the horizontal layout as a 100vh flex column: TopNav (fixed 56px, position: sticky) + <main flex:1 overflowY:auto>. So main's usable height is 100vh − 56px.
          But the chat screen hardcodes height: 100vh on its root containers:
          • frontend/src/components/screens/Learn.tsx:434 (entry screen)
          • frontend/src/components/screens/Learn.tsx:503 (active session)
          A 100vh child inside a 100vh − 56px container overflows main by exactly the nav height, so main becomes scrollable and the content (and with it the visual anchor of the nav) shifts. In sidebar mode the SideNav is a full-height row sibling, so 100vh matches the viewport and the bug doesn't manifest — which is why it's horizontal-mode-only.
          TOP_NAV_HEIGHT (56) is exported from TopNav.tsx:75 but is never used in any content-height calculation.
          Fix direction
          • The chat screen should fill its container (height: 100% / rely on main's flex:1) instead of height: 100vh, or subtract TOP_NAV_HEIGHT in horizontal mode.
          • Same height: 100vh pattern affects other screens and likely has the same bug: Quiz.tsx, Library.tsx, notetaker/page.tsx, course-planner/page.tsx, Social.tsx. Worth fixing generally (a shared full-height wrapper) rather than one-off per screen.
          Acceptance
          • In horizontal-nav mode on /learn, the top nav stays fixed and only the chat message area scrolls; no whole-page scroll pushes the nav off-screen.
          Metadata
          Metadata
          Assignees
          Labels
          bugSomething isn't workingfrontendFrontend / UI
          Type
          No type
          Projects
          No projects
            Milestone
            No milestone
            Relationships
            None yet
            Development
            No branches or pull requests
            Issue actions
            
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

            Skip to content
            Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode #331
            Closed
            #335
            Closed
            Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode#331
            #335
            Assignees
            Darkest-Teddy
            Labels
            bugSomething isn't workingfrontendFrontend / UI
            Description
            @AndresL230
            AndresL230
            opened on Jul 9, 2026
            Summary
            In the chat/Tutor feature (/learn), when the layout preference is the horizontal top nav bar (not the sidebar), the page becomes scrollable and the sticky top nav scrolls out of view. The nav should stay fixed and only the chat body should scroll.
            Repro
            1. Set layout preference to the horizontal top nav shell (not sidebar).
            2. Open /learn and start / resume a tutor session.
            3. Scroll — the whole screen scrolls and the 56px top nav bar disappears off the top.
            Only happens in horizontal-nav mode; the sidebar layout is unaffected.
            Root cause (grounded in code)
            ShellFrame (frontend/src/components/ShellFrame.tsx) builds the horizontal layout as a 100vh flex column: TopNav (fixed 56px, position: sticky) + <main flex:1 overflowY:auto>. So main's usable height is 100vh − 56px.
            But the chat screen hardcodes height: 100vh on its root containers:
            • frontend/src/components/screens/Learn.tsx:434 (entry screen)
            • frontend/src/components/screens/Learn.tsx:503 (active session)
            A 100vh child inside a 100vh − 56px container overflows main by exactly the nav height, so main becomes scrollable and the content (and with it the visual anchor of the nav) shifts. In sidebar mode the SideNav is a full-height row sibling, so 100vh matches the viewport and the bug doesn't manifest — which is why it's horizontal-mode-only.
            TOP_NAV_HEIGHT (56) is exported from TopNav.tsx:75 but is never used in any content-height calculation.
            Fix direction
            • The chat screen should fill its container (height: 100% / rely on main's flex:1) instead of height: 100vh, or subtract TOP_NAV_HEIGHT in horizontal mode.
            • Same height: 100vh pattern affects other screens and likely has the same bug: Quiz.tsx, Library.tsx, notetaker/page.tsx, course-planner/page.tsx, Social.tsx. Worth fixing generally (a shared full-height wrapper) rather than one-off per screen.
            Acceptance
            • In horizontal-nav mode on /learn, the top nav stays fixed and only the chat message area scrolls; no whole-page scroll pushes the nav off-screen.
            Metadata
            Metadata
            Assignees
            Labels
            bugSomething isn't workingfrontendFrontend / UI
            Type
            No type
            Projects
            No projects
              Milestone
              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode #331
              Closed
              #335
              Closed
              Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode#331
              #335
              Assignees
              Darkest-Teddy
              Labels
              bugSomething isn't workingfrontendFrontend / UI
              Description
              @AndresL230
              AndresL230
              opened on Jul 9, 2026
              Summary
              In the chat/Tutor feature (/learn), when the layout preference is the horizontal top nav bar (not the sidebar), the page becomes scrollable and the sticky top nav scrolls out of view. The nav should stay fixed and only the chat body should scroll.
              Repro
              1. Set layout preference to the horizontal top nav shell (not sidebar).
              2. Open /learn and start / resume a tutor session.
              3. Scroll — the whole screen scrolls and the 56px top nav bar disappears off the top.
              Only happens in horizontal-nav mode; the sidebar layout is unaffected.
              Root cause (grounded in code)
              ShellFrame (frontend/src/components/ShellFrame.tsx) builds the horizontal layout as a 100vh flex column: TopNav (fixed 56px, position: sticky) + <main flex:1 overflowY:auto>. So main's usable height is 100vh − 56px.
              But the chat screen hardcodes height: 100vh on its root containers:
              • frontend/src/components/screens/Learn.tsx:434 (entry screen)
              • frontend/src/components/screens/Learn.tsx:503 (active session)
              A 100vh child inside a 100vh − 56px container overflows main by exactly the nav height, so main becomes scrollable and the content (and with it the visual anchor of the nav) shifts. In sidebar mode the SideNav is a full-height row sibling, so 100vh matches the viewport and the bug doesn't manifest — which is why it's horizontal-mode-only.
              TOP_NAV_HEIGHT (56) is exported from TopNav.tsx:75 but is never used in any content-height calculation.
              Fix direction
              • The chat screen should fill its container (height: 100% / rely on main's flex:1) instead of height: 100vh, or subtract TOP_NAV_HEIGHT in horizontal mode.
              • Same height: 100vh pattern affects other screens and likely has the same bug: Quiz.tsx, Library.tsx, notetaker/page.tsx, course-planner/page.tsx, Social.tsx. Worth fixing generally (a shared full-height wrapper) rather than one-off per screen.
              Acceptance
              • In horizontal-nav mode on /learn, the top nav stays fixed and only the chat message area scrolls; no whole-page scroll pushes the nav off-screen.
              Metadata
              Metadata
              Assignees
              Labels
              bugSomething isn't workingfrontendFrontend / UI
              Type
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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                Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode #331
                Closed
                #335
                Closed
                Chat/Tutor: top nav bar scrolls out of view in horizontal-nav mode#331
                #335
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                Darkest-Teddy
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                bugSomething isn't workingfrontendFrontend / UI
                Description
                @AndresL230
                AndresL230
                opened on Jul 9, 2026
                Summary
                In the chat/Tutor feature (/learn), when the layout preference is the horizontal top nav bar (not the sidebar), the page becomes scrollable and the sticky top nav scrolls out of view. The nav should stay fixed and only the chat body should scroll.
                Repro
                1. Set layout preference to the horizontal top nav shell (not sidebar).
                2. Open /learn and start / resume a tutor session.
                3. Scroll — the whole screen scrolls and the 56px top nav bar disappears off the top.
                Only happens in horizontal-nav mode; the sidebar layout is unaffected.
                Root cause (grounded in code)
                ShellFrame (frontend/src/components/ShellFrame.tsx) builds the horizontal layout as a 100vh flex column: TopNav (fixed 56px, position: sticky) + <main flex:1 overflowY:auto>. So main's usable height is 100vh − 56px.
                But the chat screen hardcodes height: 100vh on its root containers:
                • frontend/src/components/screens/Learn.tsx:434 (entry screen)
                • frontend/src/components/screens/Learn.tsx:503 (active session)
                A 100vh child inside a 100vh − 56px container overflows main by exactly the nav height, so main becomes scrollable and the content (and with it the visual anchor of the nav) shifts. In sidebar mode the SideNav is a full-height row sibling, so 100vh matches the viewport and the bug doesn't manifest — which is why it's horizontal-mode-only.
                TOP_NAV_HEIGHT (56) is exported from TopNav.tsx:75 but is never used in any content-height calculation.
                Fix direction
                • The chat screen should fill its container (height: 100% / rely on main's flex:1) instead of height: 100vh, or subtract TOP_NAV_HEIGHT in horizontal mode.
                • Same height: 100vh pattern affects other screens and likely has the same bug: Quiz.tsx, Library.tsx, notetaker/page.tsx, course-planner/page.tsx, Social.tsx. Worth fixing generally (a shared full-height wrapper) rather than one-off per screen.
                Acceptance
                • In horizontal-nav mode on /learn, the top nav stays fixed and only the chat message area scrolls; no whole-page scroll pushes the nav off-screen.
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