body { font-family: 'Noto Sans KR', sans-serif; }
        
        /* Sidebar & Layout */
        .sidebar-item {
            position: relative;
            overflow: hidden;
            transition: all 0.2s ease;
        }
        .sidebar-item.active {
            background: #F3F4F6;
            color: #7C3AED;
            font-weight: 600;
        }
        .sidebar-item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 4px;
            background: #7C3AED;
        }

        /* Folder Card Hover */
        .folder-card {
            transition: all 0.2s ease;
        }
        .folder-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            border-color: #C084FC;
        }

        /* File Row Hover */
        .file-row {
            transition: background-color 0.15s ease;
        }
        .file-row:hover {
            background-color: #F8FAFC;
        }

        /* Grid View Item */
        .grid-item {
            transition: all 0.2s ease;
        }
        .grid-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        }

        /* Sort Header */
        .sort-header {
            cursor: pointer;
            user-select: none;
        }
        .sort-header:hover {
            color: #7C3AED;
        }
        .sort-icon {
            font-size: 1rem;
            vertical-align: middle;
            transition: transform 0.2s;
        }

        /* Animations */
        .fade-in { animation: fadeIn 0.3s ease-out forwards; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

        /* Custom Scrollbar */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: transparent; }
        ::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
        ::-webkit-scrollbar-thumb:hover { background: #94a3b8; }