diff --git a/atlas/templates/atlas/collection_detail.html b/atlas/templates/atlas/collection_detail.html
index e625fa09..9ce7f965 100644
--- a/atlas/templates/atlas/collection_detail.html
+++ b/atlas/templates/atlas/collection_detail.html
@@ -1,34 +1,6 @@
 {% extends 'atlas/exams.html' %}
 
-{% load partials %}
-
-{% partialdef casedetails-management-links %}
-
-    (<a href="{% url 'atlas:collection_case_displaysetup' casedetail.collection.pk casedetail.case.pk %}"><i class="bi bi-display" title="Setup default display"></i></a>
-
-    {% if casedetail.default_viewerstate %}
-        <i class="bi bi-check text-success" title="This case has a default viewerstate defined"></i>
-    {% endif %}
-    )
-
-    (<a href="{% url 'atlas:collection_case_details' casedetail.collection.pk casedetail.case.pk %}"><i class="bi bi-info-square" title="Case details"></i></a>)
-
-    {% if collection.collection_type == "QUE" %}
-        (<a href='{% url "atlas:collection_case_questions" casedetail.collection.pk casedetail.case.pk %}'>
-            {% if casedetail.question_schema %}
-                <i class="bi bi-question-square text-success" title="This case has questions defined."></i>
-            {% else %}
-                <i class="bi bi-question-square text-danger" title="This case has no questions defined."></i>
-            {% endif %}
-        </a>
-        )
-    {% endif %}
-
-    {% if casedetail.case.previous_case %}
-        (<a href='{% url "atlas:collection_case_priors" casedetail.collection.pk casedetail.case.pk %}'>
-            <i class="bi bi-link-45deg" title="Manage priors"></i></a>)
-    {% endif %}
-{% endpartialdef %}
+{# per-case management links removed here; will include via separate partial to keep template logic simple #}
 
 {% block content %}
     <h2>{{collection.name}}</h2>
@@ -36,107 +8,108 @@
     {% include 'exam_notes.html' %}
 
     <div>
-        Exam mode: {{collection.exam_mode}} (open access: {{collection.exam_open_access}})<br />
-        {% include "generic/partials/exams/exam_status.html#publish-results" %}
-        {% include "generic/partials/exams/exam_status.html#exam-active" %}
-        Collection Type: {{collection.get_collection_type_display}}<br />
-        Self review: {{collection.self_review}}<br />
-        Open access: {{collection.open_access}}<br />
-        {% if collection.prerequisites.exists %}
-            Prerequisite collections:
-            <ul>
-                {% for prereq in collection.prerequisites.all %}
-                    <li>
-                        <a href="{% url 'atlas:collection_detail' prereq.pk %}">{{ prereq.name }}</a>
-                        &nbsp;
-                    </li>
-                {% endfor %}
-            </ul>
+            <div class="container">
+                <div class="row mb-3">
+                    <div class="col-12">
+                        <div class="card">
+                            <div class="card-body d-flex justify-content-between align-items-center">
+                                <div>
+                                    <h2 class="mb-0">{{ collection.name }}</h2>
+                                    <div class="small text-muted">Type: {{ collection.get_collection_type_display }} · Mode: {{ collection.exam_mode }}</div>
+                                </div>
+                                <div class="text-end">
+                                    {% if collection.collection_type == "VIV" %}
+                                        <a class="btn btn-sm btn-primary" href="{% url 'atlas:collection_viva' collection.pk %}">Start Viva</a>
+                                    {% else %}
+                                        <a id="take-url" class="btn btn-sm btn-outline-primary me-2" href="{{ collection.get_take_url }}">Take / View</a>
+                                        <button _="on click writeText(#take-url's href) on navigator.clipboard" class="btn btn-sm btn-secondary">Copy link</button>
+                                    <a class="btn btn-sm btn-outline-secondary" href='{% url "atlas:collection_viva" collection.pk %}'>Review collection here</a>
+                                    {% endif %}
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
 
-        <p>
-            <button
-                title="Sync users from all prerequisite collections into this collection"
-                hx-post="{% url 'atlas:collection_sync_prerequisite_users' collection.pk %}"
-                hx-swap="outerHTML"
-                class="btn btn-sm btn-secondary"
-            >Sync prerequisite users</button>
-        </p>
-        {% endif %}
-    </div>
+                <div class="row">
+                    <main class="col-md-8">
+                        {% include 'exam_notes.html' %}
 
+                        <div class="card mb-3">
+                            <div class="card-header">Cases</div>
+                            <div class="card-body p-0">
+                                <ol id="full-question-list" class="list-group list-group-numbered mb-0 sortable">
+                                    {% for casedetail in casesdetails %}
+                                        <li class="list-group-item d-flex justify-content-between align-items-start" data-question_pk="{{ casedetail.case.pk }}">
+                                            <div class="ms-2 me-auto">
+                                                <div>
+                                                    <a href="{% url 'atlas:collection_case_view' pk=collection.pk case_number=forloop.counter0 %}">Case {{ forloop.counter }}</a>:
+                                                    {% if casedetail.case.series.count == 0 %}
+                                                        <i class="bi bi-exclamation-circle text-warning ms-2" title="No series attached to this case"></i>
+                                                    {% endif %}
+                                                    <strong class="ms-2">{{ casedetail.case.title }}</strong>
+                                                </div>
+                                                <div class="small text-muted mt-1">{% include 'atlas/partials/casedetails_management_links.html' %}</div>
+                                            </div>
+                                        </li>
+                                    {% empty %}
+                                        <li class="list-group-item">No cases in this collection.</li>
+                                    {% endfor %}
+                                </ol>
+                            </div>
+                        </div>
 
-    {% if collection.collection_type == "VIV" %}
-        <p><a href='{% url "atlas:collection_viva" collection.pk %}'><button class="btn btn-primary">Start Viva</button></a>
-    {% else %}
-        <p>This collection will be available to view/take <a href='{{collection.get_take_url}}' id="take-url">here</a>{% if not collection.active %} (when active){% endif %} <button
-            _="on click
-               writeText(#take-url's href) on navigator.clipboard
-               put 'copied url!' into me
-               wait 1s
-               put 'copy url' into me"
-            class="btn btn-sm">copy link</button>
-            <p>Review collection <a href='{% url "atlas:collection_viva" collection.pk %}'>here</a>
-    {% endif %}
+                        {% include 'exam_overview_js.html' %}
+                    </main>
 
+                    <aside class="col-md-4">
+                        <div class="card mb-3">
+                            <div class="card-header">Details & Settings</div>
+                            <div class="card-body">
+                                <p class="mb-1"><strong>Open access:</strong> {{ collection.open_access }}</p>
+                                <p class="mb-1"><strong>Self review:</strong> {{ collection.self_review }}</p>
+                                <p class="mb-1"><strong>Exam open access:</strong> {{ collection.exam_open_access }}</p>
+                                {% include "generic/partials/exams/exam_status.html#publish-results" %}
+                                {% include "generic/partials/exams/exam_status.html#exam-active" %}
 
+                                {% if collection.prerequisites.exists %}
+                                    <hr />
+                                    <div class="mb-2"><strong>Prerequisite collections</strong></div>
+                                    <ul class="list-unstyled">
+                                        {% for prereq in collection.prerequisites.all %}
+                                            <li><a href="{% url 'atlas:collection_detail' prereq.pk %}">{{ prereq.name }}</a></li>
+                                        {% endfor %}
+                                    </ul>
+                                    <p>
+                                        <button title="Sync users from all prerequisite collections into this collection" hx-post="{% url 'atlas:collection_sync_prerequisite_users' collection.pk %}" hx-swap="outerHTML" class="btn btn-sm btn-secondary">Sync prerequisite users</button>
+                                    </p>
+                                {% endif %}
+                            </div>
+                        </div>
 
+                        {% if can_edit %}
+                            <div class="card mb-3">
+                                <div class="card-header">Management</div>
+                                <div class="card-body">
+                                    <div class="d-grid gap-2">
+                                        <button id="button-edit-order" title="click and drag questions to change order" data-posturl="{% url 'atlas:exam_json_edit' pk=collection.pk %}" class="btn btn-outline-secondary btn-sm">Edit case order / Remove cases</button>
+                                        <button id="button-add-case" title="click to add a case to this collection" hx-get="{% url 'atlas:add_case_to_collection' collection.pk %}" hx-swap="innerHTML" hx-target="#case-list" class="btn btn-primary btn-sm">Add case</button>
+                                    </div>
+                                    <div id="case-list" class="mt-2"></div>
 
-    <h3>Cases</h3>
-    <ol id="full-question-list" class="sortable">
-        {% for casedetail in casesdetails %}
-            <li data-question_pk={{casedetail.case.pk}}>
-
-
-                <a href="{% url 'atlas:collection_case_view' pk=collection.pk case_number=forloop.counter0 %}">Case {{forloop.counter}}</a>
-                :
-                {% if casedetail.case.series.count == 0 %}
-                    &nbsp;<i class="bi bi-exclamation-circle text-warning" title="No series attached to this case"></i>&nbsp;
-                {% endif %}
-                {{casedetail.case.title}}
-
-                {% partial casedetails-management-links %}
-
-            </li>
-
-        {% endfor %}
-    </ol>
-
-
-
-
-    {% if can_edit %}
-        <p><button id='button-edit-order' title='click and drag questions to change order' data-posturl="{% url 'atlas:exam_json_edit' pk=collection.pk %}">Edit case order / Remove cases</button></p>
-        <p><button id='button-add-case'
-                   title='click to add a case to this collection'
-                   hx-get="{% url 'atlas:add_case_to_collection' collection.pk %}" hx-swap="innerHTML" hx-target="#case-list">
-            Add case
-        </button>
-            <div id='case-list'></div>
-        </p>
-
-        <details>
-            <summary>Answer management</summary>
-
-            <div class="alert alert-danger">
-                <p>Manage answers for this collection. </p>
-
-                Please note these are permanant and cannot be undone.
+                                    <details class="mt-3">
+                                        <summary>Answer management</summary>
+                                        <div class="alert alert-danger mt-2">Manage answers for this collection. Please note these are permanent and cannot be undone.</div>
+                                        <div class="d-grid gap-2 mt-2">
+                                            <button title="This will clear all user answers and attempts" hx-post="{% url 'atlas:collection_reset_answers' collection.pk %}" hx-swap="outerHTML" hx-confirm="Are you sure you want to reset all answers? This action cannot be undone." class="btn btn-danger btn-sm">Reset all answers</button>
+                                            <button title="This will specific user answers and attempts" hx-post="{% url 'atlas:collection_reset_answers_user_list' collection.pk %}" hx-swap="innerHTML" hx-target="#user-list" class="btn btn-warning btn-sm">Reset user answers</button>
+                                        </div>
+                                        <div id="user-list" class="mt-2"></div>
+                                    </details>
+                                </div>
+                            </div>
+                        {% endif %}
+                    </aside>
+                </div>
             </div>
-
-            <button title="This will clear all user answers and attempts"
-                    hx-post="{% url 'atlas:collection_reset_answers' collection.pk %}"
-                    hx-swap="outerHTML"
-                    hx-confirm="Are you sure you want to reset all answers? This action cannot be undone."
-            >Reset all answers</button>
-
-            <button title="This will specific user answers and attempts"
-                    hx-post="{% url 'atlas:collection_reset_answers_user_list' collection.pk %}"
-                    hx-swap="innerHTML"
-                    hx-target="#user-list"
-            >Reset user answers</button>
-            <div id="user-list"></div>
-
-        </details>
-    {% endif %}
-    {% include 'exam_overview_js.html' %}
-{% endblock %}
+        {% endblock %}