diff --git a/assets/styles/04-pages/highlights.css b/assets/styles/04-pages/highlights.css
index 52d4f8a..1564f79 100644
--- a/assets/styles/04-pages/highlights.css
+++ b/assets/styles/04-pages/highlights.css
@@ -133,6 +133,90 @@
     background-color: var(--color-accent-400);
 }
 
+/* Sidebar highlights - compact cards */
+.highlights-sidebar {
+    display: flex;
+    flex-direction: column;
+    gap: 1rem;
+}
+
+.highlight-card-compact {
+    background: var(--color-bg-light);
+    padding: var(--spacing-2);
+    transition: transform 0.2s, box-shadow 0.2s;
+}
+
+.highlight-card-compact:hover {
+    transform: translateY(-2px);
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+}
+
+.highlight-header-compact {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: 0.75rem;
+    font-size: 0.85rem;
+    gap: 0.5rem;
+}
+
+.highlight-content-compact {
+    font-size: 0.95rem;
+    line-height: 1.4;
+    color: var(--color-text);
+}
+
+.highlight-mark-compact {
+    background: var(--color-accent-300);
+    padding: 0.1em 0.2em;
+    font-weight: 500;
+    border-radius: 2px;
+}
+
+.context-text-compact {
+    margin-bottom: 0.5rem;
+    font-style: normal;
+    color: var(--color-text-mid);
+}
+
+.sidebar-section {
+    margin-bottom: 2rem;
+}
+
+.sidebar-heading {
+    font-size: 1.1rem;
+    font-weight: 600;
+    margin-bottom: 1rem;
+}
+
+/* Mobile highlights - hidden by default, shown when sidebar is not visible */
+.highlights-mobile-section {
+    display: none;
+    margin-top: 3rem;
+    padding-top: 2rem;
+    border-top: 2px solid var(--color-border);
+}
+
+.highlights-mobile-heading {
+    font-size: 1.3rem;
+    font-weight: 600;
+    margin-bottom: 1.5rem;
+    color: var(--color-text);
+}
+
+.highlights-mobile-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
+    gap: 1.5rem;
+}
+
+/* Show mobile highlights when sidebar is hidden (1200px and below) */
+@media (max-width: 1200px) {
+    .highlights-mobile-section {
+        display: block;
+    }
+}
+
 @media (max-width: 768px) {
     .highlights-grid {
         column-count: 1;
@@ -141,6 +225,10 @@
     .highlight-card {
         margin-bottom: 1.5rem;
     }
+
+    .highlights-mobile-grid {
+        grid-template-columns: 1fr;
+    }
 }
 
 @media (min-width: 769px) and (max-width: 1400px) {
diff --git a/src/Service/HighlightService.php b/src/Service/HighlightService.php
index b290ae0..1d11ab2 100644
--- a/src/Service/HighlightService.php
+++ b/src/Service/HighlightService.php
@@ -77,7 +77,7 @@ class HighlightService
             'count' => count($highlights)
         ]);
 
-        return array_map(function (Highlight $highlight) {
+        $mappedHighlights = array_map(function (Highlight $highlight) {
             return [
                 'content' => $highlight->getContent(),
                 'created_at' => $highlight->getCreatedAt(),
@@ -85,6 +85,28 @@ class HighlightService
                 'context' => $highlight->getContext(),
             ];
         }, $highlights);
+
+        // Deduplicate highlights based on content and pubkey
+        // Keep the most recent highlight for each content+pubkey combination
+        $deduplicated = [];
+        $seen = [];
+
+        foreach ($mappedHighlights as $highlight) {
+            $key = md5($highlight['content'] . '|' . $highlight['pubkey']);
+
+            if (!isset($seen[$key])) {
+                $seen[$key] = true;
+                $deduplicated[] = $highlight;
+            }
+        }
+
+        $this->logger->info('Deduplicated highlights', [
+            'coordinate' => $articleCoordinate,
+            'original_count' => count($mappedHighlights),
+            'deduplicated_count' => count($deduplicated)
+        ]);
+
+        return $deduplicated;
     }
 
     /**
diff --git a/templates/pages/article.html.twig b/templates/pages/article.html.twig
index b90baea..ae566c0 100644
--- a/templates/pages/article.html.twig
+++ b/templates/pages/article.html.twig
@@ -168,10 +168,91 @@
             }" />
 
         <twig:Organisms:Comments current="30023:{{ article.pubkey }}:{{ article.slug|e }}"></twig:Organisms:Comments>
+
+        {# Mobile highlights - shown after comments on narrow screens #}
+        {% if highlights is defined and highlights|length > 0 %}
+            <div class="highlights-mobile-section">
+                <h3 class="highlights-mobile-heading">Highlights ({{ highlights|length }})</h3>
+                <div class="highlights-mobile-grid">
+                    {% for highlight in highlights %}
+                        <div class="highlight-card-compact">
+                            <div class="highlight-header-compact">
+                                {% if highlight.pubkey %}
+                                    <twig:Molecules:UserFromNpub
+                                        ident="{{ highlight.pubkey }}"
+                                        :compact="true"
+                                    />
+                                {% else %}
+                                    <span class="text-muted">Anonymous</span>
+                                {% endif %}
+                                <small class="text-muted ms-auto">
+                                    {{ highlight.created_at|date('M j') }}
+                                </small>
+                            </div>
+                            <div class="highlight-content-compact">
+                                {% if highlight.context %}
+                                    {% set htmlContext = highlight.context|markdown_to_html %}
+                                    {% if highlight.content in highlight.context %}
+                                        {% set wrapper = '<mark class="highlight-mark-compact">' ~ highlight.content ~ '</mark>' %}
+                                        {% set rendered = htmlContext|replace({ (highlight.content): wrapper }) %}
+                                        {{ rendered|raw }}
+                                    {% else %}
+                                        <div class="context-text-compact">{{ htmlContext|raw }}</div>
+                                        <mark class="highlight-mark-compact">{{ highlight.content }}</mark>
+                                    {% endif %}
+                                {% else %}
+                                    <mark class="highlight-mark-compact">{{ highlight.content }}</mark>
+                                {% endif %}
+                            </div>
+                        </div>
+                    {% endfor %}
+                </div>
+            </div>
+        {% endif %}
     </article>
 {% endblock %}
 
 {% block aside %}
+    {% if highlights is defined and highlights|length > 0 %}
+        <div class="sidebar-section">
+            <h3 class="sidebar-heading">Highlights ({{ highlights|length }})</h3>
+            <div class="highlights-sidebar">
+                {% for highlight in highlights %}
+                    <div class="highlight-card-compact">
+                        <div class="highlight-header-compact">
+                            {% if highlight.pubkey %}
+                                <twig:Molecules:UserFromNpub
+                                    ident="{{ highlight.pubkey }}"
+                                    :compact="true"
+                                />
+                            {% else %}
+                                <span class="text-muted">Anonymous</span>
+                            {% endif %}
+                            <small class="text-muted ms-auto">
+                                {{ highlight.created_at|date('M j') }}
+                            </small>
+                        </div>
+                        <div class="highlight-content-compact">
+                            {% if highlight.context %}
+                                {% set htmlContext = highlight.context|markdown_to_html %}
+                                {% if highlight.content in highlight.context %}
+                                    {% set wrapper = '<mark class="highlight-mark-compact">' ~ highlight.content ~ '</mark>' %}
+                                    {% set rendered = htmlContext|replace({ (highlight.content): wrapper }) %}
+                                    {{ rendered|raw }}
+                                {% else %}
+                                    <div class="context-text-compact">{{ htmlContext|raw }}</div>
+                                    <mark class="highlight-mark-compact">{{ highlight.content }}</mark>
+                                {% endif %}
+                            {% else %}
+                                <mark class="highlight-mark-compact">{{ highlight.content }}</mark>
+                            {% endif %}
+                        </div>
+                    </div>
+                {% endfor %}
+            </div>
+        </div>
+    {% endif %}
+
 {#    <h1>Suggestions</h1>#}
 {#    <twig:Organisms:CardList :list="suggestions" />#}
 {% endblock %}