diff --git a/docs/TASKS/content/008-multi-channel-preview-editor.md b/docs/TASKS/content/008-multi-channel-preview-editor.md
new file mode 100644
index 00000000..3bfb6ad7
--- /dev/null
+++ b/docs/TASKS/content/008-multi-channel-preview-editor.md
@@ -0,0 +1,38 @@
+# Task: Redesign content editor for shared multi-channel previews
+
+## Feature
+
+`docs/FEATURES/channels.md`
+
+## Goal
+
+Make content creation feel like planning a real social post instead of filling out legacy form fields.
+
+The editor should use one shared content body for every selected target channel, show selectable target channels as a vertical tab-style list, and preview the same content in platform-shaped cards for networks such as YouTube and X.
+
+## Scope
+
+- Keep content item editing in `frontend/src/features/content/views/ContentItemDetailView.vue`.
+- Replace per-channel caption editing with a shared caption and shared hashtags.
+- Let configured workspace channels be selected or unselected as targets.
+- Show selected targets in a vertical rail and render preview cards that look closer to social platform previews.
+- Convert shared hashtags into chip-style entry with suggestions from already used hashtags.
+- Show a workspace hashtag feed so authors can reuse existing tags.
+- Preserve existing save payloads and backend contracts.
+
+## Validation
+
+```bash
+cd frontend
+npm run build
+```
+
+## Acceptance Criteria
+
+- [x] Content authors select target channels with checkbox-like controls.
+- [x] The same shared content appears on every selected channel preview.
+- [x] The editor includes platform-specific preview treatment for YouTube and X/Twitter.
+- [x] Saving still creates or revises a content item with the selected targets.
+- [x] Hashtags commit to removable chips as they are entered.
+- [x] Already used hashtags are available as suggestions.
+- [x] The editor shows a workspace hashtag feed with usage counts.
diff --git a/frontend/src/features/content/views/ContentItemDetailView.vue b/frontend/src/features/content/views/ContentItemDetailView.vue
index 9cf9436f..4fac3efe 100644
--- a/frontend/src/features/content/views/ContentItemDetailView.vue
+++ b/frontend/src/features/content/views/ContentItemDetailView.vue
@@ -3,7 +3,20 @@
     import { useI18n } from 'vue-i18n';
     import { useRoute, useRouter } from 'vue-router';
     import { useSessionStorage } from '@vueuse/core';
-    import { mdiArrowLeft } from '@mdi/js';
+    import {
+        mdiArrowLeft,
+        mdiCheckboxBlankOutline,
+        mdiCheckboxMarked,
+        mdiClose,
+        mdiFacebook,
+        mdiInstagram,
+        mdiLinkedin,
+        mdiMusicNote,
+        mdiReddit,
+        mdiTwitter,
+        mdiWeb,
+        mdiYoutube,
+    } from '@mdi/js';
     import { useChannelsStore } from '@/features/channels/stores/channelsStore.js';
     import { useClientsStore } from '@/features/clients/stores/clientsStore.js';
     import ContentApprovalPanel from '@/features/content/components/ContentApprovalPanel.vue';
@@ -51,6 +64,8 @@
     const assetRevisionForms = reactive({});
     const activeProductionTab = ref('comments');
     const activeCalendarEvent = ref(null);
+    const activePlacementId = ref('');
+    const hashtagInput = ref('');
 
     const saveError = reactive({
         message: '',
@@ -87,6 +102,60 @@
             .filter(Boolean))
             .join(', ')
     );
+    const selectedPlacements = computed(() =>
+        form.placements.filter(placement => placement.channelId || placement.channelName || placement.network)
+    );
+    const activePlacement = computed(() => {
+        if (!selectedPlacements.value.length) {
+            return null;
+        }
+
+        return selectedPlacements.value.find(placement => placement.id === activePlacementId.value)
+            ?? selectedPlacements.value[0];
+    });
+    const sharedPreviewText = computed(() => form.body.trim() || 'Draft the shared caption once. Every selected channel will preview this same content.');
+    const sharedPreviewTags = computed(() => parseHashtags(form.hashtags));
+    const workspaceHashtagFeed = computed(() => {
+        const selected = new Set(sharedPreviewTags.value.map(tag => normalizeHashtag(tag).toLowerCase()));
+        const feed = new Map();
+
+        for (const contentItem of contentItemsStore.items) {
+            if (
+                contentWorkspaceId.value &&
+                contentItem.workspaceId &&
+                contentItem.workspaceId !== contentWorkspaceId.value
+            ) {
+                continue;
+            }
+
+            for (const tag of parseHashtags(contentItem.hashtags)) {
+                const normalized = normalizeHashtag(tag);
+                const key = normalized.toLowerCase();
+
+                if (!normalized) {
+                    continue;
+                }
+
+                const existing = feed.get(key) ?? {
+                    tag: normalized,
+                    count: 0,
+                    isSelected: selected.has(key),
+                };
+
+                existing.count += 1;
+                existing.isSelected = selected.has(key);
+                feed.set(key, existing);
+            }
+        }
+
+        return Array.from(feed.values())
+            .sort((left, right) => right.count - left.count || left.tag.localeCompare(right.tag));
+    });
+    const hashtagSuggestions = computed(() =>
+        workspaceHashtagFeed.value
+            .filter(entry => !entry.isSelected)
+            .slice(0, 12)
+    );
     const operationalClient = computed(() => clientsStore.operationalClient);
     const campaignNameById = computed(() =>
         new Map(campaignsStore.campaigns.map(campaign => [campaign.id, campaign.name]))
@@ -178,11 +247,47 @@
     }
 
     function addPlacement(channel = null) {
-        form.placements.push(blankPlacement(channel));
+        if (channel) {
+            const existing = form.placements.find(placement => placement.channelId === channel.id);
+
+            if (existing) {
+                activePlacementId.value = existing.id;
+                return;
+            }
+        }
+
+        const placement = blankPlacement(channel);
+        placement.message = form.body;
+        placement.hashtags = form.hashtags;
+        form.placements.push(placement);
+        activePlacementId.value = placement.id;
     }
 
     function removePlacement(placementId) {
         form.placements = form.placements.filter(placement => placement.id !== placementId);
+
+        if (activePlacementId.value === placementId) {
+            activePlacementId.value = form.placements[0]?.id ?? '';
+        }
+    }
+
+    function toggleChannel(channel) {
+        const existing = form.placements.find(placement => placement.channelId === channel.id);
+
+        if (existing) {
+            removePlacement(existing.id);
+            return;
+        }
+
+        addPlacement(channel);
+    }
+
+    function isChannelSelected(channelId) {
+        return form.placements.some(placement => placement.channelId === channelId);
+    }
+
+    function setActivePlacement(placement) {
+        activePlacementId.value = placement.id;
     }
 
     function addMedia(placement) {
@@ -195,10 +300,72 @@
 
     function removeHashtag(tagToRemove) {
         form.hashtags = parseHashtags(form.hashtags)
-            .filter(tag => tag.toLowerCase() !== tagToRemove.toLowerCase())
+            .filter(tag => normalizeHashtag(tag).toLowerCase() !== normalizeHashtag(tagToRemove).toLowerCase())
             .join(' ');
     }
 
+    function normalizeHashtag(value) {
+        const cleaned = (value ?? '')
+            .trim()
+            .replace(/^#+/, '')
+            .replace(/[^\p{L}\p{N}_-]/gu, '');
+
+        return cleaned ? `#${cleaned}` : '';
+    }
+
+    function addHashtag(value) {
+        const normalized = normalizeHashtag(value);
+
+        if (!normalized) {
+            return;
+        }
+
+        const tags = parseHashtags(form.hashtags);
+        const exists = tags.some(tag => normalizeHashtag(tag).toLowerCase() === normalized.toLowerCase());
+
+        if (!exists) {
+            form.hashtags = [...tags, normalized].join(' ');
+        }
+    }
+
+    function commitHashtagInput() {
+        const entries = hashtagInput.value
+            .split(/[,\s]+/)
+            .map(entry => entry.trim())
+            .filter(Boolean);
+
+        for (const entry of entries) {
+            addHashtag(entry);
+        }
+
+        hashtagInput.value = '';
+    }
+
+    function handleHashtagKeydown(event) {
+        if (event.key === 'Enter' || event.key === ',' || event.key === 'Tab') {
+            if (hashtagInput.value.trim()) {
+                event.preventDefault();
+                commitHashtagInput();
+            }
+        }
+
+        if (event.key === 'Backspace' && !hashtagInput.value && sharedPreviewTags.value.length) {
+            removeHashtag(sharedPreviewTags.value.at(-1));
+        }
+    }
+
+    function handleHashtagPaste(event) {
+        const pasted = event.clipboardData?.getData('text');
+
+        if (!pasted || !/[\s,]/.test(pasted)) {
+            return;
+        }
+
+        event.preventDefault();
+        hashtagInput.value = pasted;
+        commitHashtagInput();
+    }
+
     function parseHashtags(value) {
         return (value ?? '')
             .split(/[,\s]+/)
@@ -267,8 +434,8 @@
                 channelId,
                 channelName,
                 variantLabel: placement.variantLabel ?? '',
-                message: placement.message ?? '',
-                hashtags: placement.hashtags ?? '',
+                message: form.body,
+                hashtags: form.hashtags,
                 mediaItems: (placement.mediaItems ?? []).map(media => ({
                     id: media.id ?? crypto.randomUUID(),
                     mediaType: media.mediaType ?? 'Image',
@@ -289,7 +456,11 @@
             body: form.body,
             hashtags: form.hashtags,
             changeSummary: form.changeSummary,
-            placements: form.placements,
+            placements: form.placements.map(placement => ({
+                ...placement,
+                message: form.body,
+                hashtags: form.hashtags,
+            })),
         }));
     }
 
@@ -301,6 +472,7 @@
         form.hashtags = draft.hashtags ?? '';
         form.changeSummary = draft.changeSummary ?? '';
         form.placements = normalizePlacements(draft.placements ?? []);
+        activePlacementId.value = form.placements[0]?.id ?? '';
     }
 
     function buildDraftFromItem() {
@@ -600,6 +772,69 @@
         return new Intl.DateTimeFormat(locale.value, { weekday: 'short', day: 'numeric' }).format(date);
     }
 
+    function channelIcon(network) {
+        const normalized = (network ?? '').toLowerCase();
+
+        if (normalized.includes('youtube')) {
+            return mdiYoutube;
+        }
+
+        if (normalized === 'x' || normalized.includes('twitter')) {
+            return mdiTwitter;
+        }
+
+        if (normalized.includes('instagram')) {
+            return mdiInstagram;
+        }
+
+        if (normalized.includes('facebook')) {
+            return mdiFacebook;
+        }
+
+        if (normalized.includes('linkedin')) {
+            return mdiLinkedin;
+        }
+
+        if (normalized.includes('reddit')) {
+            return mdiReddit;
+        }
+
+        if (normalized.includes('tiktok')) {
+            return mdiMusicNote;
+        }
+
+        return mdiWeb;
+    }
+
+    function previewNetworkClass(network) {
+        const normalized = (network ?? '').toLowerCase();
+
+        if (normalized.includes('youtube')) {
+            return 'youtube';
+        }
+
+        if (normalized === 'x' || normalized.includes('twitter')) {
+            return 'x';
+        }
+
+        if (normalized.includes('instagram') || normalized.includes('tiktok')) {
+            return 'vertical';
+        }
+
+        return 'standard';
+    }
+
+    function previewProfileName(placement = activePlacement.value) {
+        return placement?.channelName || placement?.network || 'Selected channel';
+    }
+
+    function previewHandle(placement = activePlacement.value) {
+        const channel = availableChannels.value.find(candidate => candidate.id === placement?.channelId);
+        const handle = channel?.handle || placement?.channelName || placement?.network || 'channel';
+
+        return handle.startsWith('@') ? handle : `@${handle.replace(/\s+/g, '').toLowerCase()}`;
+    }
+
     function startOfDay(value) {
         const date = new Date(value);
         date.setHours(0, 0, 0, 0);
@@ -673,6 +908,7 @@
             }
 
             await Promise.all([
+                contentItemsStore.fetchContentItems(),
                 calendarStore.fetchSources(workspaceId),
                 calendarStore.fetchEvents({ workspaceId, startDate, endDate }),
                 workspaceStore.fetchMembers(workspaceId),
@@ -877,11 +1113,11 @@
                                 <span>Shared hashtags</span>
                                 <div class="hashtags-input-shell">
                                     <div
-                                        v-if="parseHashtags(form.hashtags).length"
+                                        v-if="sharedPreviewTags.length"
                                         class="hashtags-editor"
                                     >
                                         <v-chip
-                                            v-for="tag in parseHashtags(form.hashtags)"
+                                            v-for="tag in sharedPreviewTags"
                                             :key="`form-${tag}`"
                                             class="hashtag-chip"
                                             size="small"
@@ -894,202 +1130,207 @@
                                             {{ tag.startsWith('#') ? tag : `#${tag}` }}
                                         </v-chip>
                                     </div>
-                                    <v-text-field
-                                        v-model="form.hashtags"
+                                    <input
+                                        v-model="hashtagInput"
                                         class="hashtags-inline-input"
-                                        placeholder="#launch #campaign #brand"
-                                        density="compact"
-                                        variant="plain"
-                                        hide-details
+                                        type="text"
+                                        placeholder="Add hashtag"
+                                        @keydown="handleHashtagKeydown"
+                                        @paste="handleHashtagPaste"
+                                        @blur="commitHashtagInput"
                                     />
                                 </div>
+
+                                <div
+                                    v-if="workspaceHashtagFeed.length"
+                                    class="hashtag-feed"
+                                >
+                                    <div class="hashtag-feed-heading">
+                                        <strong>Workspace hashtag feed</strong>
+                                        <span>{{ workspaceHashtagFeed.length }} used</span>
+                                    </div>
+
+                                    <div class="hashtag-suggestions">
+                                        <v-btn variant="text" :ripple="false"
+                                            v-for="entry in hashtagSuggestions"
+                                            :key="`suggestion-${entry.tag}`"
+                                            class="hashtag-suggestion"
+                                            type="button"
+                                            @click="addHashtag(entry.tag)"
+                                        >
+                                            <span>{{ entry.tag }}</span>
+                                            <small>{{ entry.count }}</small>
+                                        </v-btn>
+                                    </div>
+                                </div>
                             </label>
                         </div>
                     </div>
 
-                    <div class="content-section">
+                    <div class="content-section preview-editor-section">
                         <div class="section-title-row">
-                            <strong>Channels and variants</strong>
-                            <v-btn variant="text" :ripple="false"
-                                class="secondary-button"
-                                type="button"
-                                @click="addPlacement()"
-                            >
-                                Add channel
-                            </v-btn>
+                            <strong>Target channels</strong>
+                            <span>{{ selectedPlacements.length }} selected</span>
                         </div>
 
-                        <div
-                            v-if="groupedChannels.length"
-                            class="channel-suggestions"
-                        >
-                            <v-btn variant="text" :ripple="false"
-                                v-for="group in groupedChannels"
-                                :key="group.network"
-                                class="network-pill"
-                                type="button"
-                                @click="addPlacement(group.channels[0])"
-                            >
-                                {{ group.network }}
-                            </v-btn>
-                        </div>
-
-                        <div
-                            v-if="form.placements.length"
-                            class="placement-list"
-                        >
-                            <article
-                                v-for="placement in form.placements"
-                                :key="placement.id"
-                                class="placement-card"
-                            >
-                                <div class="placement-header">
-                                    <div>
-                                        <strong>{{ placement.channelName || placement.network || 'Channel' }}</strong>
-                                        <span>{{ placement.variantLabel || 'Custom variant' }}</span>
-                                    </div>
-                                    <v-btn variant="text" :ripple="false"
-                                        class="link-button"
-                                        type="button"
-                                        @click="removePlacement(placement.id)"
+                        <div class="preview-editor">
+                            <aside class="target-rail">
+                                <template v-if="groupedChannels.length">
+                                    <div
+                                        v-for="group in groupedChannels"
+                                        :key="group.network"
+                                        class="target-group"
                                     >
-                                        Remove
+                                        <span>{{ group.network }}</span>
+
+                                        <v-btn variant="text" :ripple="false"
+                                            v-for="channel in group.channels"
+                                            :key="channel.id"
+                                            class="target-channel"
+                                            :class="{
+                                                selected: isChannelSelected(channel.id),
+                                                active: activePlacement?.channelId === channel.id,
+                                            }"
+                                            type="button"
+                                            @click="toggleChannel(channel)"
+                                        >
+                                            <v-icon
+                                                class="target-check"
+                                                :icon="isChannelSelected(channel.id) ? mdiCheckboxMarked : mdiCheckboxBlankOutline"
+                                            />
+                                            <v-icon
+                                                class="target-network"
+                                                :icon="channelIcon(channel.network)"
+                                            />
+                                            <span>
+                                                <strong>{{ channel.name }}</strong>
+                                                <small>{{ channel.handle || channel.network }}</small>
+                                            </span>
+                                        </v-btn>
+                                    </div>
+                                </template>
+
+                                <div
+                                    v-else
+                                    class="empty-note"
+                                >
+                                    Add workspace channels before choosing publication targets.
+                                </div>
+                            </aside>
+
+                            <div class="preview-stage">
+                                <div
+                                    v-if="selectedPlacements.length"
+                                    class="selected-preview-tabs"
+                                >
+                                    <v-btn variant="text" :ripple="false"
+                                        v-for="placement in selectedPlacements"
+                                        :key="placement.id"
+                                        class="selected-preview-tab"
+                                        :class="{ active: activePlacement?.id === placement.id }"
+                                        type="button"
+                                        @click="setActivePlacement(placement)"
+                                    >
+                                        <v-icon :icon="channelIcon(placement.network)" />
+                                        <span>{{ placement.channelName || placement.network }}</span>
                                     </v-btn>
                                 </div>
 
-                                <div class="form-grid compact-grid">
-                                    <v-text-field
-                                        v-model="placement.network"
-                                        label="Network"
-                                        placeholder="Instagram, YouTube..."
-                                        variant="outlined"
-                                        hide-details
-                                    />
-
-                                    <v-select
-                                        v-model="placement.channelId"
-                                        :items="availableChannels.map(channel => ({
-                                            title: `${channel.name}${channel.network ? ` · ${channel.network}` : ''}`,
-                                            value: channel.id,
-                                        }))"
-                                        label="Channel"
-                                        placeholder="Select a configured channel"
-                                        variant="outlined"
-                                        hide-details
-                                        clearable
-                                        @update:model-value="syncPlacementChannel(placement, $event)"
-                                    />
-
-                                    <v-text-field
-                                        v-model="placement.channelName"
-                                        label="Channel name"
-                                        placeholder="IG Feed, YouTube Main..."
-                                        variant="outlined"
-                                        hide-details
-                                    />
-
-                                    <v-text-field
-                                        v-model="placement.variantLabel"
-                                        label="Variant label"
-                                        placeholder="Reel version, Shorts version..."
-                                        variant="outlined"
-                                        hide-details
-                                    />
-
-                                    <v-textarea
-                                        v-model="placement.message"
-                                        class="field-wide"
-                                        label="Channel-specific caption"
-                                        rows="3"
-                                        variant="outlined"
-                                        hide-details
-                                    />
-
-                                    <v-text-field
-                                        v-model="placement.hashtags"
-                                        class="field-wide"
-                                        label="Channel-specific hashtags"
-                                        placeholder="#product #launch"
-                                        variant="outlined"
-                                        hide-details
-                                    />
-                                </div>
-
-                                <div class="media-section">
-                                    <div class="section-title-row">
-                                        <strong>Media</strong>
+                                <article
+                                    v-if="activePlacement"
+                                    class="social-preview-card"
+                                    :class="`is-${previewNetworkClass(activePlacement.network)}`"
+                                >
+                                    <div class="preview-topbar">
+                                        <div class="preview-profile">
+                                            <div class="preview-avatar">
+                                                <v-icon :icon="channelIcon(activePlacement.network)" />
+                                            </div>
+                                            <div>
+                                                <strong>{{ previewProfileName(activePlacement) }}</strong>
+                                                <span>{{ previewHandle(activePlacement) }}</span>
+                                            </div>
+                                        </div>
                                         <v-btn variant="text" :ripple="false"
-                                            class="secondary-button"
+                                            class="preview-remove"
                                             type="button"
-                                            @click="addMedia(placement)"
+                                            :aria-label="`Remove ${previewProfileName(activePlacement)}`"
+                                            @click="removePlacement(activePlacement.id)"
                                         >
-                                            Add media
+                                            <v-icon :icon="mdiClose" />
                                         </v-btn>
                                     </div>
 
                                     <div
-                                        v-if="placement.mediaItems.length"
-                                        class="media-list"
+                                        v-if="previewNetworkClass(activePlacement.network) === 'youtube'"
+                                        class="youtube-preview"
                                     >
+                                        <div class="youtube-player">
+                                            <v-icon :icon="mdiYoutube" />
+                                        </div>
+                                        <div class="youtube-meta">
+                                            <strong>{{ form.title || 'Untitled video' }}</strong>
+                                            <span>{{ previewProfileName(activePlacement) }}</span>
+                                            <p>{{ sharedPreviewText }}</p>
+                                        </div>
+                                    </div>
+
+                                    <div
+                                        v-else-if="previewNetworkClass(activePlacement.network) === 'x'"
+                                        class="x-preview"
+                                    >
+                                        <p>{{ sharedPreviewText }}</p>
                                         <div
-                                            v-for="media in placement.mediaItems"
-                                            :key="media.id"
-                                            class="media-card"
+                                            v-if="sharedPreviewTags.length"
+                                            class="preview-tags"
                                         >
-                                            <div class="form-grid compact-grid">
-                                                <v-select
-                                                    v-model="media.mediaType"
-                                                    :items="['Image', 'Video', 'Document']"
-                                                    label="Media type"
-                                                    variant="outlined"
-                                                    hide-details
-                                                />
-
-                                                <v-text-field
-                                                    v-model="media.label"
-                                                    label="Label"
-                                                    placeholder="Cover image, YouTube video..."
-                                                    variant="outlined"
-                                                    hide-details
-                                                />
-
-                                                <v-text-field
-                                                    v-model="media.url"
-                                                    class="field-wide"
-                                                    label="Media URL / reference"
-                                                    placeholder="Google Drive link or asset URL"
-                                                    variant="outlined"
-                                                    hide-details
-                                                />
-                                            </div>
-
-                                            <v-btn variant="text" :ripple="false"
-                                                class="link-button"
-                                                type="button"
-                                                @click="removeMedia(placement, media.id)"
+                                            <span
+                                                v-for="tag in sharedPreviewTags"
+                                                :key="`x-${tag}`"
                                             >
-                                                Remove media
-                                            </v-btn>
+                                                {{ tag.startsWith('#') ? tag : `#${tag}` }}
+                                            </span>
+                                        </div>
+                                        <div class="x-engagement">
+                                            <span>Reply</span>
+                                            <span>Repost</span>
+                                            <span>Like</span>
+                                            <span>Share</span>
                                         </div>
                                     </div>
 
                                     <div
                                         v-else
-                                        class="empty-note"
+                                        class="feed-preview"
                                     >
-                                        Add media per channel, for example a video for YouTube or an image for Instagram.
+                                        <div class="feed-media">
+                                            <v-icon :icon="channelIcon(activePlacement.network)" />
+                                        </div>
+                                        <p>{{ sharedPreviewText }}</p>
+                                        <div
+                                            v-if="sharedPreviewTags.length"
+                                            class="preview-tags"
+                                        >
+                                            <span
+                                                v-for="tag in sharedPreviewTags"
+                                                :key="`feed-${tag}`"
+                                            >
+                                                {{ tag.startsWith('#') ? tag : `#${tag}` }}
+                                            </span>
+                                        </div>
                                     </div>
-                                </div>
-                            </article>
-                        </div>
+                                </article>
 
-                        <div
-                            v-else
-                            class="empty-note"
-                        >
-                            Add at least one channel to define where this content will be published.
-                        </div>
+                                <div
+                                    v-else
+                                    class="preview-empty-state"
+                                >
+                                    <strong>Select one or more channels</strong>
+                                    <span>The shared content will preview here for every selected target.</span>
+                                </div>
+                            </div>
                         </div>
+                    </div>
                     </main>
                 </section>
 
@@ -1579,7 +1820,7 @@
     }
 
     .hashtags-input-shell {
-        @apply flex flex-wrap items-center gap-2 rounded-[1rem] border px-4 py-3;
+        @apply flex min-h-14 flex-wrap items-center gap-2 rounded-[1rem] border px-4 py-3;
         background: var(--app-color-surface);
         border-color: var(--app-border-subtle);
     }
@@ -1589,15 +1830,291 @@
     }
 
     .hashtags-inline-input {
-        @apply min-w-[12rem] flex-1 border-0 bg-transparent p-0 text-sm;
+        @apply min-w-[10rem] flex-1 border-0 bg-transparent p-0 text-sm;
         color: var(--app-color-on-surface);
         outline: none;
     }
 
+    .hashtags-inline-input::placeholder {
+        color: var(--app-text-muted);
+    }
+
     .hashtag-chip {
         @apply font-bold;
     }
 
+    .hashtag-feed {
+        @apply flex flex-col gap-2 rounded-[1rem] border p-3;
+        background: rgba(15, 118, 110, 0.04);
+        border-color: rgba(15, 118, 110, 0.12);
+    }
+
+    .hashtag-feed-heading {
+        @apply flex items-center justify-between gap-3;
+    }
+
+    .hashtag-feed-heading strong {
+        @apply text-xs font-bold uppercase tracking-[0.16em];
+        color: var(--app-color-on-surface);
+    }
+
+    .hashtag-feed-heading span {
+        @apply text-xs font-semibold;
+        color: var(--app-text-muted);
+    }
+
+    .hashtag-suggestions {
+        @apply flex flex-wrap gap-2;
+    }
+
+    .hashtag-suggestion {
+        @apply inline-flex min-h-8 items-center gap-2 rounded-full border px-3 py-1 text-xs font-bold;
+        background: rgba(15, 118, 110, 0.06);
+        border-color: rgba(15, 118, 110, 0.14);
+        color: var(--app-color-on-tertiary);
+    }
+
+    .hashtag-suggestion small {
+        @apply rounded-full px-1.5 py-0.5 text-[0.65rem] font-black leading-none;
+        background: rgba(15, 118, 110, 0.12);
+        color: var(--app-color-on-tertiary);
+    }
+
+    .hashtag-suggestion:hover {
+        background: var(--app-color-on-tertiary);
+        color: var(--app-color-on-primary);
+    }
+
+    .hashtag-suggestion:hover small {
+        background: rgba(255, 255, 255, 0.2);
+        color: var(--app-color-on-primary);
+    }
+
+    .preview-editor-section {
+        @apply rounded-[1.25rem] border p-4;
+        background: #f8fafc;
+        border-color: var(--app-border-subtle);
+    }
+
+    .preview-editor {
+        @apply grid gap-4 lg:grid-cols-[18rem_minmax(0,1fr)];
+    }
+
+    .target-rail {
+        @apply flex min-w-0 flex-col gap-4 rounded-[1rem] border p-3;
+        background: var(--app-color-on-primary);
+        border-color: var(--app-border-subtle);
+    }
+
+    .target-group {
+        @apply flex flex-col gap-2;
+    }
+
+    .target-group > span {
+        @apply px-2 text-xs font-bold uppercase tracking-[0.16em];
+        color: var(--app-text-muted);
+    }
+
+    .target-channel {
+        @apply grid min-h-16 w-full grid-cols-[1.25rem_2rem_minmax(0,1fr)] items-center gap-3 rounded-[0.875rem] border px-3 py-2 text-left transition;
+        background: var(--app-control-subtle);
+        border-color: transparent;
+        color: var(--app-color-on-surface);
+    }
+
+    .target-channel:hover,
+    .target-channel.selected {
+        background: rgba(15, 118, 110, 0.08);
+        border-color: rgba(15, 118, 110, 0.2);
+    }
+
+    .target-channel.active {
+        background: var(--app-color-on-surface);
+        color: var(--app-color-on-primary);
+    }
+
+    .target-check {
+        @apply text-lg;
+        color: var(--app-color-on-tertiary);
+    }
+
+    .target-channel.active .target-check {
+        color: var(--app-color-on-primary);
+    }
+
+    .target-network,
+    .preview-avatar {
+        @apply grid h-8 w-8 place-items-center rounded-full;
+        background: rgba(15, 118, 110, 0.12);
+        color: var(--app-color-on-tertiary);
+    }
+
+    .target-channel.active .target-network {
+        background: rgba(255, 255, 255, 0.18);
+        color: var(--app-color-on-primary);
+    }
+
+    .target-channel span {
+        @apply flex min-w-0 flex-col gap-0.5;
+    }
+
+    .target-channel strong,
+    .target-channel small {
+        @apply block truncate;
+    }
+
+    .target-channel strong {
+        @apply text-sm font-bold;
+    }
+
+    .target-channel small {
+        @apply text-xs;
+        color: var(--app-text-muted);
+    }
+
+    .target-channel.active small {
+        color: rgba(255, 255, 255, 0.72);
+    }
+
+    .preview-stage {
+        @apply flex min-w-0 flex-col gap-3;
+    }
+
+    .selected-preview-tabs {
+        @apply flex gap-2 overflow-x-auto pb-1;
+    }
+
+    .selected-preview-tab {
+        @apply inline-flex min-h-10 shrink-0 items-center gap-2 rounded-full border px-3 py-2 text-sm font-bold transition;
+        background: var(--app-color-on-primary);
+        border-color: var(--app-border-subtle);
+        color: var(--app-color-on-surface);
+    }
+
+    .selected-preview-tab.active {
+        background: var(--app-color-on-surface);
+        border-color: var(--app-color-on-surface);
+        color: var(--app-color-on-primary);
+    }
+
+    .social-preview-card {
+        @apply flex min-h-[28rem] flex-col gap-4 rounded-[1.25rem] border p-4 shadow-sm;
+        background: var(--app-color-on-primary);
+        border-color: var(--app-border-subtle);
+    }
+
+    .preview-topbar,
+    .preview-profile {
+        @apply flex items-center gap-3;
+    }
+
+    .preview-topbar {
+        @apply justify-between;
+    }
+
+    .preview-profile div:last-child {
+        @apply flex min-w-0 flex-col;
+    }
+
+    .preview-profile strong {
+        @apply truncate text-sm font-black;
+        color: var(--app-color-on-surface);
+    }
+
+    .preview-profile span,
+    .youtube-meta span,
+    .x-engagement span {
+        @apply text-xs;
+        color: var(--app-text-muted);
+    }
+
+    .preview-remove {
+        @apply grid h-9 w-9 place-items-center rounded-full p-0;
+        color: var(--app-text-muted);
+    }
+
+    .youtube-preview,
+    .feed-preview,
+    .x-preview {
+        @apply flex flex-1 flex-col gap-4;
+    }
+
+    .youtube-player {
+        @apply grid aspect-video w-full place-items-center rounded-[1rem];
+        background: #111827;
+        color: #ef4444;
+    }
+
+    .youtube-player :deep(.v-icon) {
+        @apply text-6xl;
+    }
+
+    .youtube-meta {
+        @apply flex flex-col gap-2;
+    }
+
+    .youtube-meta strong {
+        @apply text-xl font-black;
+        color: var(--app-color-on-surface);
+    }
+
+    .youtube-meta p,
+    .x-preview p,
+    .feed-preview p {
+        @apply whitespace-pre-line text-sm leading-6;
+        color: var(--app-color-on-surface);
+    }
+
+    .x-preview {
+        @apply rounded-[1rem] border p-4;
+        border-color: var(--app-border-subtle);
+    }
+
+    .x-preview p {
+        @apply text-lg leading-8;
+    }
+
+    .x-engagement {
+        @apply mt-auto grid grid-cols-4 gap-2 border-t pt-3 text-center;
+        border-color: var(--app-border-subtle);
+    }
+
+    .feed-media {
+        @apply grid aspect-[4/5] w-full place-items-center rounded-[1rem];
+        background: linear-gradient(135deg, #0f766e, #f97316);
+        color: white;
+    }
+
+    .feed-media :deep(.v-icon) {
+        @apply text-5xl;
+    }
+
+    .preview-tags {
+        @apply flex flex-wrap gap-2;
+    }
+
+    .preview-tags span {
+        @apply rounded-full px-3 py-1 text-xs font-bold;
+        background: rgba(15, 118, 110, 0.1);
+        color: var(--app-color-on-tertiary);
+    }
+
+    .preview-empty-state {
+        @apply grid min-h-[24rem] place-items-center rounded-[1.25rem] border p-8 text-center;
+        background: var(--app-color-on-primary);
+        border-color: var(--app-border-subtle);
+    }
+
+    .preview-empty-state strong {
+        @apply text-lg font-black;
+        color: var(--app-color-on-surface);
+    }
+
+    .preview-empty-state span {
+        @apply mt-2 block max-w-sm text-sm leading-6;
+        color: var(--app-text-muted);
+    }
+
     .network-pill {
         @apply rounded-full border px-4 py-2 text-xs font-bold uppercase tracking-[0.16em];
         background: var(--app-control-subtle);