/*!
 * nom-sortitem.css - Style cốt lõi cho plugin nom.sortitems.js
 * Chỉ gồm phần bắt buộc để drag & drop đa cấp hoạt động + hiển thị đúng.
 * Màu sắc/theme có thể override ở project.
 */
.drag-handle{touch-action:none;-webkit-user-drag:none}.draggable{width:100%}.draggable li{list-style-type:none;margin-bottom:8px;position:relative}.draggable li .drag-handle{border:2px solid #e0e0e0;background:linear-gradient(to bottom,#fff 0%,#f5f5f5 100%);border-radius:8px;padding:12px 50px 12px 15px;color:#333;cursor:move;transition:all .2s ease;font-weight:500;display:block}.draggable li .drag-handle:hover{border-color:#667eea;box-shadow:0 2px 8px rgba(102,126,234,.2)}.drag-handle.drop-child{border:2px solid #4caf50!important;background:#e8f5e9}.draggable li ul{margin-top:8px;padding-left:25px;width:100%}.dragreplace{border:2px dashed #667eea;border-radius:8px;background:#f0f4ff;margin-bottom:8px;min-height:45px}.draggable.dragging{position:fixed;top:0;left:0;z-index:9999;opacity:.85;box-shadow:0 8px 30px rgba(0,0,0,.3)}.draggable i.toggle{display:block;cursor:pointer;float:left;width:28px;height:28px;line-height:28px;background:#667eea;color:#fff;font-size:16px;text-align:center;border-radius:50%;font-style:normal;font-weight:bold;transition:all .2s ease;position:absolute;left:-10px;top:-5px}.draggable i.toggle:hover{background:#5568d3;transform:scale(1.1)}.draggable li .drag-handle,.draggable i.toggle{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.draggable li.collapse>ul.draggable{display:none}.draggable li.expanded>ul.draggable{display:block}.draggable li.editing>.drag-handle{border-color:#4caf50!important;background:#e8f5e9;box-shadow:0 0 10px rgba(76,175,80,.3)}.control{position:absolute;right:5px;top:5px;display:flex;gap:5px;z-index:10}.control button{width:30px;height:30px;cursor:pointer;font-size:14px;border-radius:6px;border:1px solid #ddd;background:#fff;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.control button:hover{transform:scale(1.1)}.control button.edit{color:#2196f3;border-color:#2196f3}.control button.edit:hover{background:#2196f3;color:#fff}.control button.delete{color:#f44336;border-color:#f44336}.control button.delete:hover{background:#f44336;color:#fff}