diff --git a/browser/templates/_types/blog/_card.html b/browser/templates/_types/blog/_card.html
index f075af1..89ce8e7 100644
--- a/browser/templates/_types/blog/_card.html
+++ b/browser/templates/_types/blog/_card.html
@@ -69,10 +69,11 @@
       {% endif %}
       </a>
 
-      {# Widget-driven card decorations #}
-      {% for w in widgets.container_cards %}
-        {% include w.template with context %}
-      {% endfor %}
+      {# Card decorations — via fragments #}
+      {% if card_widgets_html %}
+        {% set _card_html = card_widgets_html.get(post.id|string, "") %}
+        {% if _card_html %}{{ _card_html | safe }}{% endif %}
+      {% endif %}
 
       {% include '_types/blog/_card/at_bar.html' %}
 
diff --git a/browser/templates/_types/day/_nav.html b/browser/templates/_types/day/_nav.html
index cfb8aca..889e3ce 100644
--- a/browser/templates/_types/day/_nav.html
+++ b/browser/templates/_types/day/_nav.html
@@ -25,13 +25,9 @@
   {% endcall %}
 </div>
 
-{# Container nav widgets (market links, etc.) #}
-{% if container_nav_widgets %}
-  {% for wdata in container_nav_widgets %}
-    {% with ctx=wdata.ctx %}
-      {% include wdata.widget.template with context %}
-    {% endwith %}
-  {% endfor %}
+{# Container nav (market links, etc.) — via fragments #}
+{% if container_nav_html %}
+  {{ container_nav_html | safe }}
 {% endif %}
 
 {# Admin link #}
diff --git a/browser/templates/_types/entry/_nav.html b/browser/templates/_types/entry/_nav.html
index c2e772a..e77d573 100644
--- a/browser/templates/_types/entry/_nav.html
+++ b/browser/templates/_types/entry/_nav.html
@@ -22,12 +22,9 @@
   {% endcall %}
 </div>
 
-{% if container_nav_widgets %}
-  {% for wdata in container_nav_widgets %}
-    {% with ctx=wdata.ctx %}
-      {% include wdata.widget.template with context %}
-    {% endwith %}
-  {% endfor %}
+{# Container nav (market links, etc.) — via fragments #}
+{% if container_nav_html %}
+  {{ container_nav_html | safe }}
 {% endif %}
 
 {# Admin link #}
diff --git a/browser/templates/_types/post/_nav.html b/browser/templates/_types/post/_nav.html
index db8cdc4..e4ed92e 100644
--- a/browser/templates/_types/post/_nav.html
+++ b/browser/templates/_types/post/_nav.html
@@ -1,8 +1,42 @@
 {% import 'macros/links.html' as links %}
-    {# Widget-driven container nav — entries, calendars, markets #}
-    {% if container_nav_widgets %}
+    {# Container nav — entries, calendars, markets (via fragments) #}
+    {% if container_nav_html %}
       <div class="flex flex-col sm:flex-row sm:items-center gap-2 border-r border-stone-200 mr-2 sm:max-w-2xl"
            id="entries-calendars-nav-wrapper">
-        {% include '_types/post/admin/_nav_entries.html' %}
+        {# Left scroll arrow - desktop only #}
+        <button
+          class="entries-nav-arrow hidden flex-shrink-0 p-2 hover:bg-stone-200 rounded"
+          aria-label="Scroll left"
+          _="on click
+             set #associated-items-container.scrollLeft to #associated-items-container.scrollLeft - 200">
+          <i class="fa fa-chevron-left"></i>
+        </button>
+        <div id="associated-items-container"
+             class="overflow-y-auto sm:overflow-x-auto sm:overflow-y-visible scrollbar-hide max-h-[50vh] sm:max-h-none"
+             style="scroll-behavior: smooth;"
+             _="on load or scroll
+                if window.innerWidth >= 640 and my.scrollWidth > my.clientWidth
+                  remove .hidden from .entries-nav-arrow
+                  add .flex to .entries-nav-arrow
+                else
+                  add .hidden to .entries-nav-arrow
+                  remove .flex from .entries-nav-arrow
+                end">
+          <div class="flex flex-col sm:flex-row gap-1">
+            {{ container_nav_html | safe }}
+          </div>
+        </div>
+        <style>
+        .scrollbar-hide::-webkit-scrollbar { display: none; }
+        .scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }
+        </style>
+        {# Right scroll arrow - desktop only #}
+        <button
+          class="entries-nav-arrow hidden flex-shrink-0 p-2 hover:bg-stone-200 rounded"
+          aria-label="Scroll right"
+          _="on click
+             set #associated-items-container.scrollLeft to #associated-items-container.scrollLeft + 200">
+          <i class="fa fa-chevron-right"></i>
+        </button>
       </div>
     {% endif %}
diff --git a/browser/templates/_types/post/admin/_nav_entries_oob.html b/browser/templates/_types/post/admin/_nav_entries_oob.html
index cc6d3b8..eecc3d5 100644
--- a/browser/templates/_types/post/admin/_nav_entries_oob.html
+++ b/browser/templates/_types/post/admin/_nav_entries_oob.html
@@ -6,7 +6,73 @@
   <div class="flex flex-col sm:flex-row sm:items-center gap-2 border-r border-stone-200 mr-2 sm:max-w-2xl"
        id="entries-calendars-nav-wrapper"
        hx-swap-oob="true">
-       {% include '_types/post/admin/_nav_entries.html' %}
+    {# Left scroll arrow - desktop only #}
+    <button
+      class="entries-nav-arrow hidden flex-shrink-0 p-2 hover:bg-stone-200 rounded"
+      aria-label="Scroll left"
+      _="on click
+         set #associated-items-container.scrollLeft to #associated-items-container.scrollLeft - 200">
+      <i class="fa fa-chevron-left"></i>
+    </button>
+
+    <div id="associated-items-container"
+         class="overflow-y-auto sm:overflow-x-auto sm:overflow-y-visible scrollbar-hide max-h-[50vh] sm:max-h-none"
+         style="scroll-behavior: smooth;"
+         _="on load or scroll
+            if window.innerWidth >= 640 and my.scrollWidth > my.clientWidth
+              remove .hidden from .entries-nav-arrow
+              add .flex to .entries-nav-arrow
+            else
+              add .hidden to .entries-nav-arrow
+              remove .flex from .entries-nav-arrow
+            end">
+      <div class="flex flex-col sm:flex-row gap-1">
+        {# Calendar entries #}
+        {% if associated_entries and associated_entries.entries %}
+          {% for entry in associated_entries.entries %}
+            {% set _entry_path = '/' + post.slug + '/calendars/' + entry.calendar_slug + '/' + entry.start_at.year|string + '/' + entry.start_at.month|string + '/' + entry.start_at.day|string + '/entries/' + entry.id|string + '/' %}
+            <a
+              href="{{ events_url(_entry_path) }}"
+              class="{{styles.nav_button_less_pad}}">
+              <div class="w-8 h-8 rounded bg-stone-200 flex-shrink-0"></div>
+              <div class="flex-1 min-w-0">
+                <div class="font-medium truncate">{{ entry.name }}</div>
+                <div class="text-xs text-stone-600 truncate">
+                  {{ entry.start_at.strftime('%b %d, %Y at %H:%M') }}
+                  {% if entry.end_at %} – {{ entry.end_at.strftime('%H:%M') }}{% endif %}
+                </div>
+              </div>
+            </a>
+          {% endfor %}
+        {% endif %}
+        {# Calendar links #}
+        {% if calendars %}
+          {% for calendar in calendars %}
+            {% set local_href=events_url('/' + post.slug + '/calendars/' + calendar.slug + '/') %}
+            <a
+              href="{{ local_href }}"
+              class="{{styles.nav_button_less_pad}}">
+              <i class="fa fa-calendar" aria-hidden="true"></i>
+              <div>{{calendar.name}}</div>
+            </a>
+          {% endfor %}
+        {% endif %}
+      </div>
+    </div>
+
+    <style>
+    .scrollbar-hide::-webkit-scrollbar { display: none; }
+    .scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }
+    </style>
+
+    {# Right scroll arrow - desktop only #}
+    <button
+      class="entries-nav-arrow hidden flex-shrink-0 p-2 hover:bg-stone-200 rounded"
+      aria-label="Scroll right"
+      _="on click
+         set #associated-items-container.scrollLeft to #associated-items-container.scrollLeft + 200">
+      <i class="fa fa-chevron-right"></i>
+    </button>
   </div>
 {% else %}
   {# Empty placeholder to remove nav items when all are disassociated/deleted #}
diff --git a/services/widgets/calendar_widgets.py b/services/widgets/calendar_widgets.py
index 4c0939f..ee35c3d 100644
--- a/services/widgets/calendar_widgets.py
+++ b/services/widgets/calendar_widgets.py
@@ -1,44 +1,15 @@
-"""Calendar-domain widgets: entries nav, calendar links, card entries, account pages."""
+"""Calendar-domain widgets: account pages (tickets & bookings).
+
+Container nav and card widgets have been replaced by fragments
+(events app serves them at /internal/fragments/).
+"""
 from __future__ import annotations
 
-from shared.contracts.widgets import NavWidget, CardWidget, AccountPageWidget
+from shared.contracts.widgets import AccountPageWidget
 from shared.services.widget_registry import widgets
 from shared.services.registry import services
 
 
-# -- container_nav: associated entries ----------------------------------------
-
-async def _nav_entries_context(
-    session, *, container_type, container_id, post_slug, page=1, **kw,
-):
-    entries, has_more = await services.calendar.associated_entries(
-        session, container_type, container_id, page,
-    )
-    return {
-        "entries": entries,
-        "has_more": has_more,
-        "page": page,
-        "post_slug": post_slug,
-    }
-
-
-# -- container_nav: calendar links -------------------------------------------
-
-async def _nav_calendars_context(
-    session, *, container_type, container_id, post_slug, **kw,
-):
-    calendars = await services.calendar.calendars_for_container(
-        session, container_type, container_id,
-    )
-    return {"calendars": calendars, "post_slug": post_slug}
-
-
-# -- container_card: confirmed entries for post listings ----------------------
-
-async def _card_entries_batch(session, post_ids):
-    return await services.calendar.confirmed_entries_for_posts(session, post_ids)
-
-
 # -- account pages: tickets & bookings ---------------------------------------
 
 async def _tickets_context(session, *, user_id, **kw):
@@ -54,25 +25,6 @@ async def _bookings_context(session, *, user_id, **kw):
 # -- registration entry point ------------------------------------------------
 
 def register_calendar_widgets() -> None:
-    widgets.add_container_nav(NavWidget(
-        domain="calendar",
-        order=10,
-        context_fn=_nav_entries_context,
-        template="_widgets/container_nav/calendar_entries.html",
-    ))
-    widgets.add_container_nav(NavWidget(
-        domain="calendar_links",
-        order=20,
-        context_fn=_nav_calendars_context,
-        template="_widgets/container_nav/calendar_links.html",
-    ))
-    widgets.add_container_card(CardWidget(
-        domain="calendar",
-        order=10,
-        batch_fn=_card_entries_batch,
-        context_key="associated_entries",
-        template="_widgets/container_card/calendar_entries.html",
-    ))
     widgets.add_account_page(AccountPageWidget(
         domain="calendar",
         slug="tickets",
diff --git a/services/widgets/market_widgets.py b/services/widgets/market_widgets.py
index 8138391..480d42c 100644
--- a/services/widgets/market_widgets.py
+++ b/services/widgets/market_widgets.py
@@ -1,24 +1,10 @@
-"""Market-domain widgets: marketplace links on container pages."""
+"""Market-domain widgets.
+
+Container nav widgets have been replaced by fragments
+(market app serves them at /internal/fragments/).
+"""
 from __future__ import annotations
 
-from shared.contracts.widgets import NavWidget
-from shared.services.widget_registry import widgets
-from shared.services.registry import services
-
-
-async def _nav_markets_context(
-    session, *, container_type, container_id, post_slug, **kw,
-):
-    markets = await services.market.marketplaces_for_container(
-        session, container_type, container_id,
-    )
-    return {"markets": markets, "post_slug": post_slug}
-
 
 def register_market_widgets() -> None:
-    widgets.add_container_nav(NavWidget(
-        domain="market",
-        order=30,
-        context_fn=_nav_markets_context,
-        template="_widgets/container_nav/market_links.html",
-    ))
+    pass