diff --git a/src/frontend/src/components/editors/NotesEditor.css b/src/frontend/src/components/editors/NotesEditor.css
new file mode 100644
index 0000000000..35b2cc8f5e
--- /dev/null
+++ b/src/frontend/src/components/editors/NotesEditor.css
@@ -0,0 +1,68 @@
+/* Table styles for the Tiptap notes editor */
+.ProseMirror table {
+  border-collapse: collapse;
+  table-layout: fixed;
+  width: 100%;
+  overflow: hidden;
+  margin: 0;
+}
+
+.ProseMirror table td,
+.ProseMirror table th {
+  border: 1px solid var(--mantine-color-gray-4);
+  padding: 4px 8px;
+  vertical-align: top;
+  box-sizing: border-box;
+  position: relative;
+  min-width: 50px;
+}
+
+[data-mantine-color-scheme='dark'] .ProseMirror table td,
+[data-mantine-color-scheme='dark'] .ProseMirror table th {
+  border-color: var(--mantine-color-dark-4);
+}
+
+.ProseMirror table th {
+  background-color: var(--mantine-color-gray-1);
+  font-weight: bold;
+}
+
+[data-mantine-color-scheme='dark'] .ProseMirror table th {
+  background-color: var(--mantine-color-dark-6);
+}
+
+/* Selected cell highlight */
+.ProseMirror table .selectedCell::after {
+  content: '';
+  position: absolute;
+  inset: 0;
+  background: var(--mantine-color-blue-1);
+  opacity: 0.4;
+  pointer-events: none;
+}
+
+[data-mantine-color-scheme='dark'] .ProseMirror table .selectedCell::after {
+  background: var(--mantine-color-blue-9);
+}
+
+/* Column resize handle */
+.ProseMirror table .column-resize-handle {
+  position: absolute;
+  right: -2px;
+  top: 0;
+  bottom: 0;
+  width: 4px;
+  background-color: var(--mantine-color-blue-5);
+  pointer-events: none;
+  cursor: col-resize;
+}
+
+/* Scrollable wrapper for wide tables */
+.ProseMirror .tableWrapper {
+  overflow-x: auto;
+}
+
+/* Resize cursor while dragging */
+.ProseMirror.resize-cursor {
+  cursor: col-resize;
+}
diff --git a/src/frontend/src/components/editors/NotesEditor.tsx b/src/frontend/src/components/editors/NotesEditor.tsx
index ada6cab3fa..4d43d68fa1 100644
--- a/src/frontend/src/components/editors/NotesEditor.tsx
+++ b/src/frontend/src/components/editors/NotesEditor.tsx
@@ -12,6 +12,7 @@ import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import { useSearchParams } from 'react-router-dom';
 import { ResizableImage } from 'tiptap-extension-resizable-image';
 import 'tiptap-extension-resizable-image/styles.css';
+import './NotesEditor.css';
 
 import { ApiEndpoints } from '@lib/enums/ApiEndpoints';
 import type { ModelType } from '@lib/enums/ModelType';