refactor(admin): redesign system wording layout with sidebar and tabs

Replace module and surface dropdowns with a sidebar and tabbed interface.
Improve navigation and usability in the admin wording section.

frontend/src/styles/main.css

@@ -2409,15 +2409,98 @@ button:disabled,
   font-weight: 850;
 }
 
-.system-wording-toolbar {
-  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
+.system-wording-header {
   align-items: end;
 }
 
+.system-wording-header__locale {
+  width: min(260px, 100%);
+}
+
+.system-wording-layout {
+  display: grid;
+  grid-template-columns: minmax(180px, 240px) minmax(0, 1fr);
+  gap: 16px;
+  align-items: start;
+}
+
+.system-wording-sidebar {
+  min-width: 0;
+  display: grid;
+  align-content: start;
+  gap: 6px;
+  padding: 10px;
+  border: 1px solid var(--line);
+  border-radius: var(--radius-card);
+  background: var(--surface-soft);
+}
+
+.system-wording-sidebar__title {
+  padding: 2px 4px 4px;
+  color: var(--muted);
+  font-size: 13px;
+  font-weight: 900;
+}
+
+.system-wording-sidebar__button {
+  width: 100%;
+  min-height: 44px;
+  display: flex;
+  align-items: center;
+  justify-content: flex-start;
+  padding: 9px 10px;
+  border: 1px solid transparent;
+  border-radius: var(--radius-control);
+  background: transparent;
+  color: var(--ink-soft);
+  font-weight: 850;
+  text-align: left;
+  overflow-wrap: anywhere;
+  cursor: pointer;
+}
+
+.system-wording-sidebar__button:hover {
+  border-color: rgba(42, 117, 187, 0.24);
+  background: rgba(255, 203, 5, 0.2);
+  color: var(--pokemon-blue-deep);
+}
+
+.system-wording-sidebar__button.active {
+  border-color: var(--line-strong);
+  background: var(--pokemon-blue);
+  color: #ffffff;
+  box-shadow: 0 2px 0 var(--line-strong);
+}
+
+.system-wording-sidebar__button:disabled {
+  cursor: not-allowed;
+  opacity: 0.54;
+}
+
+.system-wording-content {
+  min-width: 0;
+  display: grid;
+  gap: 12px;
+}
+
+.system-wording-controls {
+  display: flex;
+  align-items: start;
+  justify-content: space-between;
+  gap: 12px;
+  flex-wrap: wrap;
+}
+
+.system-wording-controls .tabs--component {
+  flex: 1 1 320px;
+  min-width: 0;
+}
+
 .system-wording-toolbar__check {
   min-height: 44px;
   display: flex;
   align-items: center;
+  justify-content: flex-end;
 }
 
 .system-wording-list li {
@@ -3795,10 +3878,22 @@ button:disabled,
   .pokemon-profile-grid,
   .pokemon-profile-row,
   .pokemon-related-grid,
+  .system-wording-layout,
   .admin-layout {
     grid-template-columns: 1fr;
   }
 
+  .system-wording-sidebar {
+    display: flex;
+    overflow-x: auto;
+  }
+
+  .system-wording-sidebar__button {
+    width: auto;
+    flex: 0 0 auto;
+    white-space: nowrap;
+  }
+
   .coming-soon-panel {
     grid-template-columns: auto minmax(0, 1fr);
   }
@@ -3884,6 +3979,32 @@ button:disabled,
     width: 100%;
   }
 
+  .system-wording-header {
+    align-items: stretch;
+    flex-direction: column;
+  }
+
+  .system-wording-header__locale {
+    width: 100%;
+  }
+
+  .system-wording-controls .tabs--component {
+    flex-basis: 100%;
+  }
+
+  .system-wording-toolbar__check {
+    justify-content: flex-start;
+  }
+
+  .system-wording-list li {
+    align-items: stretch;
+    flex-direction: column;
+  }
+
+  .system-wording-list .row-actions {
+    justify-content: flex-start;
+  }
+
   .life-feed__list {
     width: 100%;
   }

frontend/src/views/AdminView.vue

@@ -161,6 +161,18 @@ const wordingLocaleOptions = computed(() =>
       ]
 );
 const wordingModules = computed(() => [...new Set(wordingRows.value.map((item) => item.module))].sort((a, b) => a.localeCompare(b)));
+const wordingSurfaceTabs = computed<TabOption[]>(() => [
+  { value: '', label: t('pages.admin.allSurfaces') },
+  { value: 'frontend', label: t('pages.admin.surfaceFrontend') },
+  { value: 'backend', label: t('pages.admin.surfaceBackend') },
+  { value: 'email', label: t('pages.admin.surfaceEmail') }
+]);
+const activeWordingSurfaceTab = computed({
+  get: () => wordingSurface.value,
+  set: (value: string) => {
+    wordingSurface.value = value === 'frontend' || value === 'backend' || value === 'email' ? value : '';
+  }
+});
 const filteredWordingRows = computed(() =>
   wordingRows.value.filter((item) => {
     if (wordingModule.value && item.module !== wordingModule.value) return false;
@@ -230,6 +242,10 @@ function resetWordingForm() {
   wordingForm.value = { key: '', locale: wordingLocale.value || defaultLocale, value: '', defaultValue: '', placeholders: [] };
 }
 
+function selectWordingModule(module: string) {
+  wordingModule.value = module;
+}
+
 function openNewConfig() {
   resetConfigForm();
   configModalOpen.value = true;
@@ -817,11 +833,9 @@ onMounted(() => {
     </section>
 
     <section v-else-if="canEdit && activeTab === 'wordings'" class="detail-section">
-      <div class="detail-section__header">
+      <div class="detail-section__header system-wording-header">
         <h2>{{ t('pages.admin.wordings') }}</h2>
-      </div>
-      <div class="toolbar system-wording-toolbar">
-        <div class="field">
+        <div class="field system-wording-header__locale">
           <label for="wording-locale">{{ t('pages.admin.wordingLocale') }}</label>
           <select id="wording-locale" v-model="wordingLocale" :disabled="busy" @change="reloadWordings">
             <option v-for="language in wordingLocaleOptions" :key="language.code" :value="language.code">
@@ -829,22 +843,37 @@ onMounted(() => {
             </option>
           </select>
         </div>
-        <div class="field">
-          <label for="wording-module">{{ t('pages.admin.wordingModule') }}</label>
-          <select id="wording-module" v-model="wordingModule" :disabled="busy">
-            <option value="">{{ t('pages.admin.allModules') }}</option>
-            <option v-for="module in wordingModules" :key="module" :value="module">{{ module }}</option>
-          </select>
-        </div>
-        <div class="field">
-          <label for="wording-surface">{{ t('pages.admin.wordingSurface') }}</label>
-          <select id="wording-surface" v-model="wordingSurface" :disabled="busy">
-            <option value="">{{ t('pages.admin.allSurfaces') }}</option>
-            <option value="frontend">{{ t('pages.admin.surfaceFrontend') }}</option>
-            <option value="backend">{{ t('pages.admin.surfaceBackend') }}</option>
-            <option value="email">{{ t('pages.admin.surfaceEmail') }}</option>
-          </select>
       </div>
+      <div class="system-wording-layout">
+        <nav class="system-wording-sidebar" :aria-label="t('pages.admin.wordingModule')">
+          <span class="system-wording-sidebar__title">{{ t('pages.admin.wordingModule') }}</span>
+          <button
+            type="button"
+            class="system-wording-sidebar__button"
+            :class="{ active: !wordingModule }"
+            :aria-current="!wordingModule ? 'true' : undefined"
+            :disabled="busy"
+            @click="selectWordingModule('')"
+          >
+            {{ t('pages.admin.allModules') }}
+          </button>
+          <button
+            v-for="module in wordingModules"
+            :key="module"
+            type="button"
+            class="system-wording-sidebar__button"
+            :class="{ active: wordingModule === module }"
+            :aria-current="wordingModule === module ? 'true' : undefined"
+            :disabled="busy"
+            @click="selectWordingModule(module)"
+          >
+            {{ module }}
+          </button>
+        </nav>
+
+        <div class="system-wording-content">
+          <div class="system-wording-controls">
+            <Tabs id="admin-wording-surface" v-model="activeWordingSurfaceTab" :tabs="wordingSurfaceTabs" :label="t('pages.admin.wordingSurface')" />
             <div class="check-row system-wording-toolbar__check">
               <label>
                 <input v-model="wordingMissingOnly" type="checkbox" :disabled="busy" />
@@ -872,6 +901,8 @@ onMounted(() => {
             </li>
           </ul>
           <p v-else class="meta-line">{{ t('common.noRecords') }}</p>
+        </div>
+      </div>
     </section>
 
     <section v-else-if="canEdit && activeTab === 'pokemon'" class="detail-section">