@if (campaign) {
  <div class="campaign-detail">
    <!-- ============ Header : mode lecture ============ -->
    @if (!editing) {
      <div class="detail-header">
        <div class="header-texts">
          <h1>{{ campaign.name }}</h1>
          <p class="description">{{ campaign.description }}</p>
          <div class="meta">
            <span class="badge">{{ 'campaignDetail.players' | translate:{ n: campaign.playerCount || 0 } }}</span>
            <!-- Badge "Univers" : lien vers le Lore associé si présent -->
            @if (linkedLore) {
              <a
                class="badge badge-lore"
                [routerLink]="['/lore', linkedLore.id]"
                [title]="'campaignDetail.openLinkedLore' | translate">
                <lucide-icon [img]="Globe" [size]="12"></lucide-icon>
                {{ linkedLore.name }}
              </a>
            }
            <!-- Campagne liée à un Lore qui n'existe plus (supprimé ailleurs) -->
            @if (campaign.loreId && !linkedLore) {
              <span class="badge badge-lore-missing" [title]="'campaignDetail.loreMissingTitle' | translate">
                <lucide-icon [img]="Globe" [size]="12"></lucide-icon>
                {{ 'campaignDetail.loreMissing' | translate }}
              </span>
            }
          </div>
        </div>
        <div class="header-actions">
          <button type="button" class="btn-secondary" (click)="startEdit()">
            <lucide-icon [img]="Pencil" [size]="14"></lucide-icon>
            {{ 'common.edit' | translate }}
          </button>
          <button type="button" class="btn-danger" (click)="deleteCampaign()">
            <lucide-icon [img]="Trash2" [size]="14"></lucide-icon>
            {{ 'common.delete' | translate }}
          </button>
        </div>
      </div>
    }
    <!-- ============ Header : mode édition inline ============ -->
    @if (editing) {
      <div class="detail-header edit-mode">
        <div class="field">
          <label>{{ 'common.name' | translate }}</label>
          <input type="text" [(ngModel)]="editName" name="editName" required />
        </div>
        <div class="field">
          <label>{{ 'common.description' | translate }}</label>
          <textarea [(ngModel)]="editDescription" name="editDescription" rows="3"></textarea>
        </div>
        <div class="field">
          <label>{{ 'campaignDetail.loreLabel' | translate }}</label>
          <select [(ngModel)]="editLoreId" name="editLoreId">
            <option value="">{{ 'campaignDetail.noLoreOption' | translate }}</option>
            @for (lore of availableLores; track lore) {
              <option [value]="lore.id">{{ lore.name }}</option>
            }
          </select>
        </div>
        <div class="field">
          <label>{{ 'campaignDetail.gameSystemLabel' | translate }}</label>
          @if (!creatingGameSystem) {
            <select
              [(ngModel)]="editGameSystemId"
              name="editGameSystemId"
              (ngModelChange)="onEditGameSystemChange($event)">
              <option value="">{{ 'campaignDetail.noGameSystemOption' | translate }}</option>
              @for (gs of availableGameSystems; track gs) {
                <option [value]="gs.id">{{ gs.name }}</option>
              }
              <option [value]="CREATE_GAMESYSTEM_SENTINEL">{{ 'campaignDetail.createGameSystemOption' | translate }}</option>
            </select>
          }
          @if (creatingGameSystem) {
            <div class="inline-create">
              <input
                type="text"
                [(ngModel)]="newGameSystemName"
                name="newGameSystemName"
                [placeholder]="'campaignDetail.gameSystemNamePlaceholder' | translate"
                (keydown.enter)="$event.preventDefault(); submitCreateGameSystem()"
                (keydown.escape)="cancelCreateGameSystem()"
                autofocus
                />
                <div class="inline-create-actions">
                  <button type="button" class="btn-inline-primary"
                    [disabled]="!newGameSystemName.trim() || creatingGameSystemInFlight"
                    (click)="submitCreateGameSystem()">
                    <lucide-icon [img]="Check" [size]="14"></lucide-icon>
                    {{ 'common.create' | translate }}
                  </button>
                  <button type="button" class="btn-inline-secondary" (click)="cancelCreateGameSystem()">
                    {{ 'common.cancel' | translate }}
                  </button>
                </div>
              </div>
            }
          </div>
          <div class="header-actions">
            <button type="button" class="btn-primary" (click)="saveEdit()" [disabled]="!editName.trim()">
              {{ 'common.save' | translate }}
            </button>
            <button type="button" class="btn-secondary" (click)="cancelEdit()">
              {{ 'common.cancel' | translate }}
            </button>
          </div>
        </div>
      }
      @if (!editing) {
        <section class="detail-section personas-section">
          <div class="section-header">
            <h2>{{ 'campaignDetail.charactersTitle' | translate }}</h2>
          </div>
          <!-- Les PJ ne sont plus rattachés à la campagne mais à une Partie (Playthrough) :
          ils se gèrent depuis la page d'une Partie. Ici on ne liste que les PNJ
          (donnée de scénario, partagée par toutes les Parties). -->
          <!-- Sous-section : Personnages non-joueurs (PNJ) -->
          <div class="persona-subsection">
            <div class="subsection-header">
              <h3>
                <lucide-icon [img]="Drama" [size]="16"></lucide-icon>
                {{ 'campaignDetail.npcTitle' | translate }}
                @if (npcs.length > 0) {
                  <span class="count-badge">{{ npcs.length }}</span>
                }
              </h3>
              <button class="btn-add" (click)="createNpc()">
                <lucide-icon [img]="Plus" [size]="14"></lucide-icon>
                {{ 'campaignDetail.newNpc' | translate }}
              </button>
            </div>
            @if (npcs.length > 0) {
              <div class="characters-grid">
                @for (npc of npcs; track npc) {
                  <div class="character-card" (click)="viewNpc(npc)">
                    <lucide-icon [img]="Drama" [size]="20" class="character-icon character-icon--npc"></lucide-icon>
                    <div class="character-info">
                      <span class="character-name">{{ npc.name }}</span>
                      <span class="character-snippet">{{ personaSnippet(npc) }}</span>
                    </div>
                  </div>
                }
              </div>
            }
            @if (npcs.length === 0) {
              <div class="empty-state empty-state--compact">
                <p>{{ 'campaignDetail.noNpc' | translate }}</p>
                <button class="btn-add-first" (click)="createNpc()">
                  <lucide-icon [img]="Plus" [size]="14"></lucide-icon>
                  {{ 'campaignDetail.createFirstNpc' | translate }}
                </button>
              </div>
            }
          </div>
        </section>
      }
      @if (!editing) {
        <section class="detail-section arcs-section">
          <div class="section-header">
            <h2>{{ 'campaignDetail.arcsTitle' | translate }}</h2>
            <div class="section-header-actions">
              <button class="btn-add" (click)="createArc()">
                <lucide-icon [img]="Plus" [size]="14"></lucide-icon>
                {{ 'campaignDetail.newArc' | translate }}
              </button>
            </div>
          </div>
          @if (arcs.length > 0) {
            <div class="arcs-grid">
              @for (arc of arcs; track arc) {
                <div class="arc-card" (click)="openArc(arc)">
                  <lucide-icon [img]="Swords" [size]="24" class="arc-icon"></lucide-icon>
                  <span class="arc-name">{{ arc.name }}</span>
                  <span class="arc-meta">{{ 'campaignDetail.chapters' | translate:{ n: chapterCountByArc[arc.id!] || 0 } }}</span>
                </div>
              }
            </div>
          }
          @if (arcs.length === 0) {
            <div class="empty-state">
              <lucide-icon [img]="Swords" [size]="40" class="empty-icon"></lucide-icon>
              <p>{{ 'campaignDetail.noArc' | translate }}</p>
              <button class="btn-add-first" (click)="createArc()">
                <lucide-icon [img]="Plus" [size]="14"></lucide-icon>
                {{ 'campaignDetail.createFirstArc' | translate }}
              </button>
            </div>
          }
        </section>
      }
      <!-- ============ Parties (Playthroughs) ============ -->
      @if (!editing) {
        <section class="detail-section playthroughs-section">
          <div class="section-header">
            <h2>
              <lucide-icon [img]="Dices" [size]="18"></lucide-icon>
              {{ 'campaignDetail.playthroughsTitle' | translate }}
            </h2>
            <button class="btn-add" [disabled]="newPlaythroughInFlight" (click)="createPlaythrough()">
              <lucide-icon [img]="Plus" [size]="14"></lucide-icon>
              {{ 'campaignDetail.newPlaythrough' | translate }}
            </button>
          </div>
          @if (playthroughs.length > 0) {
            <div class="playthroughs-grid">
              @for (p of playthroughs; track p) {
                <div class="playthrough-card"
                  (click)="openPlaythrough(p)">
                  <lucide-icon [img]="Dices" [size]="22" class="playthrough-icon"></lucide-icon>
                  <div class="playthrough-info">
                    <span class="playthrough-name">{{ p.name }}</span>
                    @if (p.description) {
                      <span class="playthrough-meta">{{ p.description }}</span>
                    }
                  </div>
                </div>
              }
            </div>
          }
          @if (playthroughs.length === 0) {
            <div class="empty-state empty-state--compact">
              <p>{{ 'campaignDetail.noPlaythrough' | translate }}</p>
            </div>
          }
        </section>
      }
      <!-- Sessions retirées : elles vivent désormais dans une Partie.
      Les faits narratifs sont définis dans les conditions de chaque quête
      (chapter-edit > « Conditions de déblocage »). -->
    </div>
  }