리펙토링 - 수정한 작업 최적화

src/renderer/folder-controller.js

@@ -43,6 +43,7 @@ export function createFolderController({
     dirPath.textContent = folder;
     await window.api.setLastFolder(folder);
     await fileExplorer.setSelectedPath(folder);
+    updateFolderPrefix(folder);
 
     showLoading('이미지 목록 불러오는 중...');
     let list = [];
@@ -56,6 +57,7 @@ export function createFolderController({
         state.selectedIdxs.clear();
         showEmptyGrid();
         btnRename.disabled = true;
+        updatePreview();
         setStatus('이미지 파일 없음', false);
         log('folder', 'loadFolder empty', { folder });
         return;
@@ -68,9 +70,6 @@ export function createFolderController({
       updateSortButtons();
       setStatus(`${state.files.length}개 파일 로드됨`, true);
 
-      const folderName = folder.replace(/\\/g, '/').split('/').pop();
-      if (folderName) inputPrefix.value = `${folderName}_`;
-
       renderGrid();
       updatePreview();
       btnRename.disabled = false;
@@ -104,6 +103,11 @@ export function createFolderController({
     btnSortDate.classList.toggle('active', state.sortMode === 'date');
   }
 
+  function updateFolderPrefix(folder) {
+    const folderName = folder.replace(/\\/g, '/').split('/').pop();
+    if (folderName) inputPrefix.value = `${folderName}_`;
+  }
+
   return {
     loadFolder,
     openFolder,

src/renderer/style.css

@@ -175,12 +175,9 @@ main {
   font-family: inherit; font-size: 13px; font-weight: 600;
   cursor: pointer; transition: all .15s;
 }
-.btn-primary { background: var(--accent); color: #fff; }
-.btn-primary:hover { background: #9180ff; transform: translateY(-1px); }
 .btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
 .btn-ghost:hover { background: var(--card); }
 .btn-ghost:disabled { color: var(--muted); border-color: var(--border); opacity: .4; cursor: not-allowed; }
-.btn-ghost.active { border-color: var(--accent); color: var(--accent); }
 .btn-info { background: #0d2535; color: var(--info); border: 1px solid #1a4060; }
 .btn-info:hover { background: #132e42; }
 .btn-info:disabled { opacity: .4; cursor: not-allowed; }