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package-lock.json

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-      "resolved": "https://registry.npmjs.org/vite/-/vite-8.3.0.tgz",
+      "resolved": "https://registry.npmjs.org/vite/-/vite-8.3.4.tgz",
-      "integrity": "sha512-lhZBVvEHefgE+HQZC9O7EBJgCU/nVzFNl7vkS4RE0APtWLP02/8QVIkQtzBxPquh7lq5/78NHipTj7ODQ6XuyQ==",
+      "integrity": "sha512-IftLE8phJhdNRIGNEV4JCCvfNScoZQVfcXaN8TQropWGJtOHcu+iAB9pHcuGvmEb/kddw0LBe/jS8ztdC6xdiQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "lightningcss": "^1.33.0",
         "picomatch": "^4.0.7",
-        "postcss": "^8.5.28",
+        "postcss": "^8.5.29",
-        "rolldown": "~1.2.6",
+        "rolldown": "~1.2.12",
         "tinyglobby": "^0.2.17"
       },
       "bin": {
@@ -2024,20 +2032,17 @@
         }
       }
     },
-    "node_modules/yaml": {
+    "node_modules/vite-plugin-qrcode": {
-      "version": "2.9.1",
+      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.9.1.tgz",
+      "resolved": "https://registry.npmjs.org/vite-plugin-qrcode/-/vite-plugin-qrcode-0.4.1.tgz",
-      "integrity": "sha512-3NxN8+78OdzbT7C/WjGsyfPAtJaN3FNDsWxv7Y7mcDsT/oOmgW8BpyQQFFBnvZE3j9Y2Sdz1ULFLezL7Eb2yFw==",
+      "integrity": "sha512-t3gdCbn/a2HHLK3M8bUrQ+4c+I0YQGJ/STxAL9eI6TBnfdeM/CJr3HctvOb7UYhEtWxHs5xZWpz7kYnRd5w+rA==",
-      "extraneous": true,
+      "dev": true,
-      "license": "ISC",
+      "license": "MIT",
-      "bin": {
+      "dependencies": {
-        "yaml": "bin.mjs"
+        "uqr": "^0.1.2"
       },
-      "engines": {
+      "peerDependencies": {
-        "node": ">= 14.6"
+        "vite": ">=3"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/eemeli"
       }
     }
   }

package.json

@@ -38,12 +38,13 @@
   "devDependencies": {
     "@emotion/react": "^11.14.0",
     "@emotion/styled": "^11.14.1",
-    "@mui/icons-material": "^9.4.0",
+    "@mui/icons-material": "^9.5.0",
-    "@mui/material": "^9.4.0",
+    "@mui/material": "^9.5.0",
-    "@playwright/test": "^1.63.0",
+    "@playwright/test": "^1.64.1",
-    "@vitejs/plugin-react": "6.1.1",
+    "@vitejs/plugin-react": "6.1.2",
-    "react": "^19.3.0",
+    "react": "^19.3.1",
-    "react-dom": "^19.3.0",
+    "react-dom": "^19.3.1",
-    "vite": "^8.3.2"
+    "vite": "^8.3.4",
+    "vite-plugin-qrcode": "^0.4.1"
   }
 }

src/FillSpace.jsx

@@ -14,8 +14,17 @@ import { alpha } from '@mui/material/styles';
  *
  * @prop {Array} items - Wheel flips pages.
  * @prop {React.ComponentType|Function} renderItem - Row renderer (component or callback).
+ * @prop {React.ReactNode} [header] - Rendered below pagination controls and above the list items.
+ * @prop {any} [headerItem] - Optional dummy/sample item passed to probe element for layout measurement.
  * @prop {number} [minPageSize=10] - Rows per page.
+ * @prop {number} [maxPageSize] - Maximum rows per page.
+ * @prop {number} [totalCount] - Total items in current dataset (or filtered dataset when paginating).
+ * @prop {number} [unfilteredTotal] - Total items in unfiltered dataset. When unfilteredTotal > pageSize, pagination space is reserved even if current filtered count <= pageSize, preventing layout shift.
+ * @prop {number} [unfilteredCount] - Alias for unfilteredTotal.
  * @prop {(page: number) => void} [onPageChange] - Called on page change.
+ * @prop {boolean} [disableWheel=false] - When true, disables mouse wheel page flipping and lets the outer page scroll.
+ * @prop {boolean} [virtualScrollbar=false] - Shows a synchronized scrollbar alongside pagination controls.
+ * @prop {boolean} [reserveScrollbar] - Reserves raceway space even when items do not overflow (defaults to true when virtualScrollbar is true).
  * @prop {boolean} [debug=false] - Dashed outline for layout debugging.
  * @prop {object} [sx] - Extra styles.
  */
@@ -38,34 +47,53 @@ function renderRowElement(renderItem, item, index) {
 }
 
 /**
- * Data-free probe of the row height, rendered hidden. Class components
+ * Probe of the row height, rendered hidden. Class components
  * (e.g. `renderItem={ArtikelMarke}`) tolerate empty props
  * (`brand`/`item` undefined) and keep a fixed height (40px thumb /
- * text field), so the probe measures the row without depending on the
+ * text field). When `headerItem` is supplied, it is passed to the row
- * first data element. Plain callbacks are NOT probed — calling arbitrary
+ * for precise measurement of data-driven layouts.
- * user code with `undefined` could throw — they fall back to the first
- * rendered data row.
  */
-function renderProbeElement(renderItem) {
+function renderProbeElement(renderItem, headerItem) {
   if (!isRowComponent(renderItem)) return null;
   const Row = renderItem;
-  return <Row brand={undefined} item={undefined} index={0} disabled />;
+  return <Row brand={headerItem} item={headerItem} index={0} disabled />;
 }
 
+const MIN_THUMB_HEIGHT = 48;
+const RACEWAY_WIDTH = 16;
+const RACEWAY_BOTTOM_MARGIN = 16;
+
 class FillSpace extends Component {
   constructor(props) {
     super(props);
+    const minSize = Math.max(1, Number(props.minPageSize) || 10);
+    const maxSize = Number(props.maxPageSize) > 0 ? Number(props.maxPageSize) : Infinity;
     this.state = {
       unitHeight: 0,
       viewportHeight: null,
-      pageSize: Number(props.minPageSize) || 10,
+      pageSize: Math.min(maxSize, minSize),
       currentPage: 1,
+      isDragging: false,
+      dragThumbTop: 0,
     };
     this.ref = null;
+    this.trackRef = null;
+    this.thumbRef = null;
     this.probeRef = null;
     this.wheelAcc = 0;
     this.observer = null;
     this.raf = null;
+    this.dragStartY = 0;
+    this.dragStartThumbTop = 0;
+    const rawUnfiltered = props.unfilteredTotal ?? props.unfilteredCount;
+    const unfilteredTotal = rawUnfiltered != null ? Number(rawUnfiltered) : null;
+    const total =
+      props.totalCount != null
+        ? Number(props.totalCount)
+        : Array.isArray(props.items)
+          ? props.items.length
+          : 0;
+    this.maxSeenCount = unfilteredTotal != null ? unfilteredTotal : total;
   }
 
   componentDidMount() {
@@ -76,39 +104,91 @@ class FillSpace extends Component {
   }
 
   componentDidUpdate(prevProps) {
-    if (prevProps.renderItem !== this.props.renderItem) {
+    if (
+      prevProps.renderItem !== this.props.renderItem ||
+      prevProps.headerItem !== this.props.headerItem
+    ) {
       this._probeMeasure();
     }
-    if (prevProps.minPageSize !== this.props.minPageSize) {
+    if (
-      this.setState({ pageSize: Number(this.props.minPageSize) || 10 });
+      prevProps.minPageSize !== this.props.minPageSize ||
+      prevProps.maxPageSize !== this.props.maxPageSize
+    ) {
+      const minSize = Math.max(1, Number(this.props.minPageSize) || 10);
+      const maxSize = Number(this.props.maxPageSize) > 0 ? Number(this.props.maxPageSize) : Infinity;
+      this.setState({ pageSize: Math.min(maxSize, minSize) });
     }
     if (
       prevProps.aboveRef !== this.props.aboveRef ||
       prevProps.belowRef !== this.props.belowRef ||
       prevProps.containerRef !== this.props.containerRef ||
       prevProps.reserveBottom !== this.props.reserveBottom ||
-      prevProps.items !== this.props.items
+      prevProps.items !== this.props.items ||
+      prevProps.header !== this.props.header
     ) {
       this._observe();
       this._viewportMeasure();
     }
-    // Clamp current page when the item list shrinks (e.g. brand deleted).
+    const rawUnfiltered = this.props.unfilteredTotal ?? this.props.unfilteredCount;
+    const unfilteredTotal = rawUnfiltered != null ? Number(rawUnfiltered) : null;
+    const total =
+      this.props.totalCount != null
+        ? Number(this.props.totalCount)
+        : Array.isArray(this.props.items)
+          ? this.props.items.length
+          : 0;
+    if (unfilteredTotal != null) {
+      this.maxSeenCount = unfilteredTotal;
+    } else {
+      this.maxSeenCount = Math.max(this.maxSeenCount || 0, total);
+    }
+    if (this.props.resetKey !== undefined && this.props.resetKey !== prevProps.resetKey) {
+      if (this.state.currentPage !== 1) {
+        this._goToPage(1);
+      } else {
+        this.props.onPageChange?.(1, {
+          pageCount: Math.max(1, Math.ceil(total / Math.max(1, this.state.pageSize))),
+          pageSize: this.state.pageSize,
+          total,
+        });
+      }
+    }
+    // Clamp current page when the item list shrinks (e.g. brand deleted) or trigger load for current page if items are missing.
     if (
       Array.isArray(this.props.items) &&
       this.props.items !== prevProps.items
     ) {
       const pageCount = Math.max(
         1,
-        Math.ceil(this.props.items.length / Math.max(1, this.state.pageSize)),
+        Math.ceil(total / Math.max(1, this.state.pageSize)),
       );
       if (this.state.currentPage > pageCount) {
         this.setState({ currentPage: pageCount });
-        this.props.onPageChange?.(pageCount);
+        this.props.onPageChange?.(pageCount, {
+          pageCount,
+          pageSize: this.state.pageSize,
+          total,
+        });
+      } else if (this.state.currentPage > 1) {
+        const offset = (this.state.currentPage - 1) * this.state.pageSize;
+        if (this.props.items.length > offset && this.props.items[offset] == null) {
+          this.props.onPageChange?.(this.state.currentPage, {
+            pageCount,
+            pageSize: this.state.pageSize,
+            total,
+          });
+        }
       }
     }
   }
 
   componentWillUnmount() {
+    if (this.state.isDragging) {
+      document.body.style.userSelect = '';
+      document.body.style.cursor = '';
+      window.removeEventListener('mousemove', this._onThumbDragMove);
+      window.removeEventListener('mouseup', this._onThumbDragEnd);
+    }
     window.removeEventListener('resize', this._onViewportChange);
     if (this.raf) {
       cancelAnimationFrame(this.raf);
@@ -120,6 +200,93 @@ class FillSpace extends Component {
     }
   }
 
+  _onThumbMouseDown = (e) => {
+    e.preventDefault();
+    e.stopPropagation();
+    const { totalCount, items } = this.props;
+    const { viewportHeight, pageSize, currentPage } = this.state;
+    const total = totalCount != null ? Number(totalCount) : (items?.length || 0);
+    const pageCount = Math.max(1, Math.ceil(total / Math.max(1, pageSize)));
+    const racewayBottom = Math.max(0, Number(this.props.racewayMarginBottom ?? RACEWAY_BOTTOM_MARGIN) || 0);
+    const trackHeight = Math.max(0, (viewportHeight || 0) - racewayBottom);
+    const thumbHeight = Math.max(MIN_THUMB_HEIGHT, Math.min(trackHeight, total > 0 ? (pageSize / total) * trackHeight : trackHeight));
+    const maxThumbTravel = Math.max(0, trackHeight - thumbHeight);
+    const currentThumbTop = pageCount > 1 && maxThumbTravel > 0 ? ((currentPage - 1) / (pageCount - 1)) * maxThumbTravel : 0;
+
+    this.dragStartY = e.clientY;
+    this.dragStartThumbTop = currentThumbTop;
+    this.setState({ isDragging: true, dragThumbTop: currentThumbTop });
+    document.body.style.userSelect = 'none';
+    document.body.style.cursor = 'grabbing';
+    window.addEventListener('mousemove', this._onThumbDragMove);
+    window.addEventListener('mouseup', this._onThumbDragEnd);
+  };
+
+  _onThumbDragMove = (e) => {
+    if (!this.state.isDragging) return;
+    const { totalCount, items } = this.props;
+    const { viewportHeight, pageSize } = this.state;
+    const total = totalCount != null ? Number(totalCount) : (items?.length || 0);
+    const pageCount = Math.max(1, Math.ceil(total / Math.max(1, pageSize)));
+    if (pageCount <= 1) return;
+
+    const racewayBottom = Math.max(0, Number(this.props.racewayMarginBottom ?? RACEWAY_BOTTOM_MARGIN) || 0);
+    const trackHeight = Math.max(0, (viewportHeight || 0) - racewayBottom);
+    const thumbHeight = Math.max(MIN_THUMB_HEIGHT, Math.min(trackHeight, total > 0 ? (pageSize / total) * trackHeight : trackHeight));
+    const maxThumbTravel = Math.max(0, trackHeight - thumbHeight);
+    if (maxThumbTravel <= 0) return;
+
+    const deltaY = e.clientY - this.dragStartY;
+    const nextThumbTop = Math.max(0, Math.min(maxThumbTravel, this.dragStartThumbTop + deltaY));
+    const targetPage = Math.min(pageCount, Math.max(1, Math.round(1 + (nextThumbTop / maxThumbTravel) * (pageCount - 1))));
+
+    this.setState({ dragThumbTop: nextThumbTop });
+    if (targetPage !== this.state.currentPage) {
+      this._goToPage(targetPage);
+    }
+  };
+
+  _onThumbDragEnd = () => {
+    document.body.style.userSelect = '';
+    document.body.style.cursor = '';
+    window.removeEventListener('mousemove', this._onThumbDragMove);
+    window.removeEventListener('mouseup', this._onThumbDragEnd);
+    this.setState({ isDragging: false });
+  };
+
+  _handleTrackMouseDown = (e) => {
+    if (e.target === this.thumbRef || this.thumbRef?.contains(e.target)) return;
+    if (!this.trackRef) return;
+    const trackRect = this.trackRef.getBoundingClientRect();
+    const clickY = e.clientY - trackRect.top;
+    const { viewportHeight, pageSize } = this.state;
+    const { items, totalCount } = this.props;
+    const total = totalCount != null ? Number(totalCount) : (items?.length || 0);
+    const pageCount = Math.max(1, Math.ceil(total / Math.max(1, pageSize)));
+    if (pageCount <= 1) return;
+
+    const racewayBottom = Math.max(0, Number(this.props.racewayMarginBottom ?? RACEWAY_BOTTOM_MARGIN) || 0);
+    const trackHeight = Math.max(0, (viewportHeight || 0) - racewayBottom);
+    if (trackHeight <= 0) return;
+    const thumbHeight = Math.max(MIN_THUMB_HEIGHT, Math.min(trackHeight, total > 0 ? (pageSize / total) * trackHeight : trackHeight));
+    const maxThumbTravel = Math.max(0, trackHeight - thumbHeight);
+    const targetThumbTop = Math.max(0, Math.min(maxThumbTravel, clickY - thumbHeight / 2));
+    const targetPage = maxThumbTravel > 0 ? Math.min(pageCount, Math.max(1, Math.round(1 + (targetThumbTop / maxThumbTravel) * (pageCount - 1)))) : 1;
+    this._goToPage(targetPage);
+  };
+
+  scrollToTop = () => {
+    this._goToPage(1);
+  };
+
+  scrollToIndex = (index) => {
+    const { pageSize } = this.state;
+    if (pageSize > 0) {
+      const targetPage = Math.floor(index / pageSize) + 1;
+      this._goToPage(targetPage);
+    }
+  };
+
   _onViewportChange = () => {
     if (this.raf) return;
     this.raf = requestAnimationFrame(() => {
@@ -144,7 +311,7 @@ class FillSpace extends Component {
       containerTarget,
     ];
     for (const el of targets) {
-      if (el && el.offsetParent !== null) {
+      if (el && typeof Element !== 'undefined' && el instanceof Element && el.offsetParent !== null) {
         this.observer.observe(el);
       }
     }
@@ -165,7 +332,8 @@ class FillSpace extends Component {
 
   /** Only measures the height of the `renderItem` probe. Nothing else. */
   _probeMeasure() {
-    const h = this.probeRef?.offsetHeight;
+    const firstRow = this.ref?.querySelector('[data-fill-row]');
+    const h = this.probeRef?.offsetHeight || firstRow?.offsetHeight;
     if (h > 0 && h !== this.state.unitHeight) {
       this.setState({ unitHeight: h }, () => this._viewportMeasure());
     }
@@ -197,23 +365,31 @@ class FillSpace extends Component {
       available = Math.max(0, window.innerHeight - rect.top - belowPx);
     }
     const minSize = Math.max(1, Number(minPageSize) || 10);
+    const maxSize = Number(this.props.maxPageSize) > 0 ? Number(this.props.maxPageSize) : Infinity;
     const { unitHeight } = this.state;
-    const nextPageSize =
+    const calculated =
       unitHeight > 0 ? Math.max(minSize, Math.floor(available / unitHeight)) : minSize;
+    const nextPageSize = Math.min(maxSize, calculated);
+    const nextViewportHeight =
+      Number.isFinite(maxSize) && unitHeight > 0
+        ? Math.min(available, nextPageSize * unitHeight)
+        : available;
     if (
-      available !== this.state.viewportHeight ||
+      nextViewportHeight !== this.state.viewportHeight ||
       nextPageSize !== this.state.pageSize
     ) {
-      this.setState({ viewportHeight: available, pageSize: nextPageSize });
+      this.setState({ viewportHeight: nextViewportHeight, pageSize: nextPageSize });
     }
   }
 
   _handleWheel = (event) => {
-    const { items } = this.props;
+    if (this.props.disableWheel) return;
+    const { items, totalCount } = this.props;
     if (!Array.isArray(items)) return;
     if (this.ref && event.target && !this.ref.contains(event.target)) return;
     const { pageSize, currentPage } = this.state;
-    const pageCount = Math.max(1, Math.ceil(items.length / Math.max(1, pageSize)));
+    const total = totalCount != null ? Number(totalCount) : items.length;
+    const pageCount = Math.max(1, Math.ceil(total / Math.max(1, pageSize)));
     const delta = event.deltaY || 0;
     if (pageCount <= 1) return;
     if (delta === 0) return;
@@ -231,13 +407,18 @@ class FillSpace extends Component {
   };
 
   _goToPage = (page) => {
-    const { items, onPageChange } = this.props;
+    const { items, onPageChange, totalCount } = this.props;
-    const total = Array.isArray(items) ? items.length : 0;
+    const total =
+      totalCount != null
+        ? Number(totalCount)
+        : Array.isArray(items)
+          ? items.length
+          : 0;
     const pageCount = Math.max(1, Math.ceil(total / Math.max(1, this.state.pageSize)));
     const next = Math.min(Math.max(1, Number(page) || 1), pageCount);
     if (next === this.state.currentPage) return;
     this.setState({ currentPage: next });
-    onPageChange?.(next);
+    onPageChange?.(next, { pageCount, pageSize: this.state.pageSize, total });
   };
 
   render() {
@@ -250,11 +431,24 @@ class FillSpace extends Component {
       minHeight,
       maxHeight,
       minPageSize,
+      maxPageSize,
+      totalCount,
+      unfilteredCount,
+      unfilteredTotal: propUnfilteredTotal,
+      resetKey,
+      listRef,
       onPageChange,
       onWheel,
+      disableWheel = false,
+      virtualScrollbar = false,
+      reserveScrollbar,
+      racewayMarginBottom,
+      racewayRight,
       debug = false,
       items,
       renderItem,
+      header,
+      headerItem,
       sx,
       ...rest
     } = this.props;
@@ -264,77 +458,124 @@ class FillSpace extends Component {
     // type or callback). `items` may be undefined while data is loading.
     const { pageSize, currentPage, viewportHeight } = this.state;
     const list = Array.isArray(items) ? items : [];
-    const total = list.length;
+    const total = totalCount != null ? Number(totalCount) : list.length;
+    const rawUnfiltered = propUnfilteredTotal ?? unfilteredCount;
+    const unfilteredTotal = rawUnfiltered != null ? Number(rawUnfiltered) : null;
+    const fullTotal = unfilteredTotal != null ? Math.max(unfilteredTotal, total) : Math.max(this.maxSeenCount || 0, total);
+    const needsPaginationContainer = fullTotal > pageSize;
+    const showPaginationControls = total > pageSize;
     const pageCount = Math.max(1, Math.ceil(total / Math.max(1, pageSize)));
     const safePage = Math.min(Math.max(1, currentPage), pageCount);
     const offset = (safePage - 1) * pageSize;
     const pageItems = list.slice(offset, offset + pageSize);
-    const showPagination = total > pageSize;
+
-    // Hidden data-free probe: measures `renderItem` itself (no data).
+    const canScroll =
-    const probe = renderProbeElement(renderItem);
+      virtualScrollbar &&
+      total > pageSize &&
+      (viewportHeight || 0) > 0;
+
+    const racewayBottom = Math.max(0, Number(racewayMarginBottom ?? RACEWAY_BOTTOM_MARGIN) || 0);
+    const racewayRightOffset = racewayRight != null ? racewayRight : 0;
+    const scrollbarReserved = reserveScrollbar ?? Boolean(virtualScrollbar);
+    const scrollbarPadding = scrollbarReserved
+      ? `${Math.max(0, RACEWAY_WIDTH + racewayRightOffset + 8)}px`
+      : 0;
+
+    let thumbHeight = 0;
+    let thumbTop = 0;
+
+    if (canScroll) {
+      const trackHeight = Math.max(0, (viewportHeight || 0) - racewayBottom);
+      thumbHeight = Math.max(MIN_THUMB_HEIGHT, Math.min(trackHeight, total > 0 ? (pageSize / total) * trackHeight : trackHeight));
+      const maxThumbTravel = Math.max(0, trackHeight - thumbHeight);
+      thumbTop = this.state.isDragging
+        ? this.state.dragThumbTop
+        : (pageCount > 1 && maxThumbTravel > 0 ? ((safePage - 1) / (pageCount - 1)) * maxThumbTravel : 0);
+    }
+
+    // Hidden probe: measures `renderItem` (passes headerItem when provided).
+    const probe = renderProbeElement(renderItem, this.props.headerItem);
 
     return (
       <>
-        <Box
+        {needsPaginationContainer ? (
-          // Fixed single-line bar: the header height must not depend on the
+          <Box
-          // page count. Otherwise the first fit (e.g. "1-17") pushes the
+            // Fixed single-line bar: the header height must not depend on the
-          // spacer down, the available height shrinks, and a second pass
+            // filtered count so the content never shifts when filtering.
-          // flips to "1-15". One pass: constant 44px, real values always
+            sx={{ mb: 1, height: 44, overflow: 'hidden' }}
-          // rendered (only visibility is gated), no placeholder numbers.
+          >
-          sx={{ mb: 1, height: 44, overflow: 'hidden' }}
+            <Box
-        >
+              sx={{
+                display: 'flex',
+                justifyContent: 'space-between',
+                alignItems: 'center',
+                flexWrap: 'nowrap',
+                gap: 1,
+                width: '100%',
+                height: 44,
+              }}
+            >
+              <Typography
+                variant="body2"
+                color="text.secondary"
+                noWrap
+                sx={{ flexShrink: 1, minWidth: 0, overflow: 'hidden', textOverflow: 'ellipsis' }}
+              >
+                {total === 0
+                  ? (unfilteredTotal != null && unfilteredTotal > 0
+                      ? `0 von ${total} (${unfilteredTotal} gesamt)`
+                      : '0')
+                  : `${offset + 1}–${Math.min(offset + pageSize, total)} von ${total}${
+                      unfilteredTotal != null && unfilteredTotal > total
+                        ? ` (${unfilteredTotal} gesamt)`
+                        : ''
+                    }`}
+              </Typography>
+              <Pagination
+                count={pageCount}
+                page={safePage}
+                onChange={(_e, page) => this._goToPage(page)}
+                color="primary"
+                size="large"
+                onMouseDown={(e) => e.preventDefault()}
+                sx={{
+                  flexShrink: 0,
+                  maxWidth: '100%',
+                  overflowX: 'auto',
+                  scrollbarWidth: 'none',
+                  '&::-webkit-scrollbar': { display: 'none' },
+                  '& .MuiPagination-ul': { flexWrap: 'nowrap' },
+                  '& .MuiPaginationItem-root': {
+                    minWidth: 44,
+                    height: 44,
+                    fontSize: '1rem',
+                  },
+                  visibility: showPaginationControls ? 'visible' : 'hidden',
+                  pointerEvents: showPaginationControls ? 'auto' : 'none',
+                }}
+              />
+            </Box>
+          </Box>
+        ) : null}
+        {header != null ? (
           <Box
-            aria-hidden={!showPagination || undefined}
             sx={{
-              display: 'flex',
-              justifyContent: 'space-between',
-              alignItems: 'center',
-              flexWrap: 'nowrap',
-              gap: 1,
               width: '100%',
-              height: 44,
+              pr: scrollbarPadding,
-              visibility: showPagination ? 'visible' : 'hidden',
+              boxSizing: 'border-box',
-              pointerEvents: showPagination ? 'auto' : 'none',
             }}
           >
-            <Typography
+            {header}
-              variant="body2"
-              color="text.secondary"
-              noWrap
-              sx={{ flexShrink: 1, minWidth: 0, overflow: 'hidden', textOverflow: 'ellipsis' }}
-            >
-              {total === 0 ? '0' : `${offset + 1}–${Math.min(offset + pageSize, total)}`} von{' '}
-              {total}
-            </Typography>
-            <Pagination
-              count={pageCount}
-              page={safePage}
-              onChange={(_e, page) => this._goToPage(page)}
-              color="primary"
-              size="large"
-              onMouseDown={(e) => e.preventDefault()}
-              sx={{
-                flexShrink: 0,
-                maxWidth: '100%',
-                overflowX: 'auto',
-                scrollbarWidth: 'none',
-                '&::-webkit-scrollbar': { display: 'none' },
-                '& .MuiPagination-ul': { flexWrap: 'nowrap' },
-                '& .MuiPaginationItem-root': {
-                  minWidth: 44,
-                  height: 44,
-                  fontSize: '1rem',
-                },
-              }}
-            />
           </Box>
-        </Box>
+        ) : null}
         <Box
           ref={(el) => {
             this.ref = el;
           }}
           onWheel={(e) => {
-            this._handleWheel(e);
+            if (!disableWheel) {
+              this._handleWheel(e);
+            }
             onWheel?.(e);
           }}
           {...rest}
@@ -344,9 +585,8 @@ class FillSpace extends Component {
               height: viewportHeight ?? 'auto',
               overflow: 'hidden',
               width: '100%',
-              // Keep wheel ticks from scrolling the page behind the list.
+              // Keep wheel ticks from scrolling the page behind the list unless disableWheel is true.
-              // (No preventDefault needed — React wheel is passive.)
+              overscrollBehavior: disableWheel ? 'auto' : 'contain',
-              overscrollBehavior: 'contain',
             },
             debug
               ? (theme) => ({
@@ -356,10 +596,16 @@ class FillSpace extends Component {
             sx,
           ]}
         >
-          <Box sx={{ width: '100%' }}>
+          <Box
-            <List dense disablePadding sx={{ width: '100%' }}>
+            sx={{
+              width: '100%',
+              pr: scrollbarPadding,
+              boxSizing: 'border-box',
+            }}
+          >
+            <List ref={listRef} dense disablePadding sx={{ width: '100%' }}>
               {pageItems.map((item, i) => (
-                <Box key={item?.id ?? offset + i} data-fill-row sx={{ width: '100%' }}>
+                <Box key={item?.id ?? item?.sku ?? offset + i} data-fill-row sx={{ width: '100%' }}>
                   {renderRowElement(renderItem, item, offset + i)}
                 </Box>
               ))}
@@ -387,6 +633,57 @@ class FillSpace extends Component {
               </List>
             </Box>
           ) : null}
+
+          {canScroll ? (
+            <Box
+              ref={(el) => {
+                this.trackRef = el;
+              }}
+              onMouseDown={this._handleTrackMouseDown}
+              sx={{
+                position: 'absolute',
+                top: 0,
+                right: racewayRightOffset,
+                bottom: `${racewayBottom}px`,
+                width: RACEWAY_WIDTH,
+                zIndex: 5,
+                cursor: 'pointer',
+                borderRadius: 8,
+                bgcolor: (theme) => alpha(theme.palette.text.primary, 0.04),
+                transition: 'background-color 0.15s ease',
+                '&:hover': {
+                  bgcolor: (theme) => alpha(theme.palette.text.primary, 0.09),
+                },
+              }}
+            >
+              <Box
+                ref={(el) => {
+                  this.thumbRef = el;
+                }}
+                onMouseDown={this._onThumbMouseDown}
+                sx={{
+                  position: 'absolute',
+                  top: thumbTop,
+                  height: thumbHeight,
+                  left: 2,
+                  right: 2,
+                  borderRadius: 6,
+                  bgcolor: (theme) =>
+                    this.state.isDragging
+                      ? alpha(theme.palette.primary.main, 0.7)
+                      : alpha(theme.palette.text.primary, 0.3),
+                  cursor: this.state.isDragging ? 'grabbing' : 'grab',
+                  transition: this.state.isDragging ? 'none' : 'background-color 0.15s ease',
+                  '&:hover': {
+                    bgcolor: (theme) =>
+                      this.state.isDragging
+                        ? alpha(theme.palette.primary.main, 0.7)
+                        : alpha(theme.palette.text.primary, 0.55),
+                  },
+                }}
+              />
+            </Box>
+          ) : null}
         </Box>
         {debug ? (
           <Box

src/dev/mock-pages/FillSpaceMockPage.jsx

@@ -34,6 +34,7 @@ class FillSpaceMockPage extends Component {
     this.ex1 = { header: createRef(), footer: createRef() };
     this.ex2 = { header: createRef(), footer: createRef() };
     this.ex3 = { header: createRef(), footer: createRef() };
+    this.exVirtual = { header: createRef(), footer: createRef() };
   }
 
   render() {
@@ -138,6 +139,37 @@ class FillSpaceMockPage extends Component {
           </Box>
         </Paper>
 
+        {/* Example 4: Virtual Scrollbar */}
+        <Paper variant="outlined" sx={{ p: 2 }}>
+          <Typography variant="subtitle2" gutterBottom>
+            Virtual Scrollbar (scrollbar synchronized with pagination)
+          </Typography>
+          <Box sx={{ display: 'flex', flexDirection: 'column' }}>
+            <Box
+              ref={this.exVirtual.header}
+              sx={{ bgcolor: '#e2e8f0', p: 1, borderRadius: 1, mb: 1 }}
+            >
+              <Typography variant="caption">Header</Typography>
+            </Box>
+
+            <FillSpace
+              aboveRef={this.exVirtual.header}
+              belowRef={this.exVirtual.footer}
+              items={SAMPLE_ITEMS}
+              renderItem={Row}
+              minPageSize={5}
+              virtualScrollbar
+            />
+
+            <Box
+              ref={this.exVirtual.footer}
+              sx={{ bgcolor: '#e2e8f0', p: 1, borderRadius: 1, mt: 1 }}
+            >
+              <Typography variant="caption">Footer</Typography>
+            </Box>
+          </Box>
+        </Paper>
+
         <ComponentDocs name="FillSpace" />
       </Box>
     );

src/lists/RecordList.jsx

@@ -158,15 +158,14 @@ class RecordList extends Component {
                   sx={{ cursor: onEdit ? 'pointer' : undefined }}
                   onClick={() => this.handleRowClick(row)}
                 >
-                  {columns.map((col) => (
                     <TableCell
                       key={col.key}
                       align={col.align}
                       padding={col.padding}
+                      sx={col.mono || col.key === 'number' || col.key === 'sku' ? { fontFamily: 'monospace' } : undefined}
                     >
                       {col.render ? col.render(row) : row[col.key]}
                     </TableCell>
-                  ))}
                   {hasActions ? (
                     <TableCell
                       padding="checkbox"

src/panels/PanelTile.jsx

@@ -8,6 +8,10 @@ import SaveOutlinedIcon from '@mui/icons-material/SaveOutlined';
 import { injectMuiTheme } from './injectMuiTheme';
 import {
   GRID_COLUMNS,
+  PANEL_TILE_GRADIENT_DARK,
+  PANEL_TILE_GRADIENT_DARK_TINTED,
+  PANEL_TILE_GRADIENT_LIGHT,
+  PANEL_TILE_GRADIENT_TINTED,
   TILE_ACTION_PADDING,
   panelTilePaperSx,
   tileActionIconSx,
@@ -16,7 +20,8 @@ import {
 
 /**
  * Read-only content panel with a title and an optional corner action (icon
- * button with busy spinner). It is a styled MUI Paper; children fill the body.
+ * button with busy spinner). It is a styled MUI Paper with a modern minimal
+ * diagonal gradient surface; children fill the body.
  *
  * @component PanelTile
  * @import dashgui/panels
@@ -134,7 +139,7 @@ export const PanelTile = injectMuiTheme(PanelTileBase);
  * @behaviour Uses a CSS grid with `gap: 2` (theme spacing).
  * @behaviour Children position themselves via the `wide` prop of each tile.
  */
-export function PanelTileGrid({ children, sx }) {
+export function PanelTileGrid({ children, sx, icon, text, label, badge, ...rest }) {
   return (
     <Box
       sx={{
@@ -147,10 +152,17 @@ export function PanelTileGrid({ children, sx }) {
         gap: 2,
         ...sx,
       }}
+      {...rest}
     >
       {children}
     </Box>
   );
 }
 
-export { GRID_COLUMNS };
+export {
+  GRID_COLUMNS,
+  PANEL_TILE_GRADIENT_LIGHT,
+  PANEL_TILE_GRADIENT_TINTED,
+  PANEL_TILE_GRADIENT_DARK,
+  PANEL_TILE_GRADIENT_DARK_TINTED,
+};

src/panels/TabbedPanelTileGrid.jsx

@@ -0,0 +1,191 @@
+import React, { Component } from 'react';
+import Box from '@mui/material/Box';
+import Chip from '@mui/material/Chip';
+import Tab from '@mui/material/Tab';
+import Tabs from '@mui/material/Tabs';
+
+/**
+ * Tabbed wrapper for multiple `PanelTileGrid` layouts.
+ *
+ * Each child `PanelTileGrid` defines its tab metadata via props:
+ * - `text` (or `label`): Tab label string
+ * - `icon`: Optional icon ReactNode
+ * - `value`: Optional unique tab value (defaults to child index)
+ * - `disabled`: Optional boolean
+ * - `badge`: Optional string/number shown as a pill chip next to the label
+ *
+ * Example:
+ * ```jsx
+ * <TabbedPanelTileGrid>
+ *   <PanelTileGrid icon={<StyleIcon />} text="Auswahl-Merkmale">
+ *     <PanelTile wide={2}>...</PanelTile>
+ *     <PanelTile wide={2}>...</PanelTile>
+ *   </PanelTileGrid>
+ *   <PanelTileGrid icon={<TuneIcon />} text="Text-Merkmale">
+ *     <PanelTile wide={2}>...</PanelTile>
+ *   </PanelTileGrid>
+ * </TabbedPanelTileGrid>
+ * ```
+ *
+ * @component TabbedPanelTileGrid
+ * @import dashgui/panels
+ *
+ * @prop {ReactNode} children - One or more PanelTileGrid elements.
+ * @prop {any} [value] - Controlled active tab value/index.
+ * @prop {any} [defaultValue] - Initial active tab value/index for uncontrolled mode.
+ * @prop {any} [defaultTab] - Alias for defaultValue.
+ * @prop {(nextValue: any, event: React.SyntheticEvent) => void} [onChange] - Called on tab switch.
+ * @prop {object} [sx] - Extra styles merged into root container Box.
+ * @prop {object} [tabsWrapperSx] - Extra styles for the container around Tabs.
+ * @prop {object} [tabsSx] - Extra styles merged into MUI Tabs.
+ * @prop {object} [tabSx] - Extra styles merged into MUI Tab.
+ */
+export class TabbedPanelTileGrid extends Component {
+  constructor(props) {
+    super(props);
+    this.state = {
+      internalTab: props.defaultValue ?? props.defaultTab ?? 0,
+    };
+    this.handleTabChange = this.handleTabChange.bind(this);
+  }
+
+  getTabs() {
+    const children = React.Children.toArray(this.props.children).filter(Boolean);
+    return children.map((child, index) => {
+      const value = child.props.value !== undefined ? child.props.value : index;
+      const text = child.props.text ?? child.props.label ?? child.props.title ?? `Tab ${index + 1}`;
+      const icon = child.props.icon ?? null;
+      const disabled = Boolean(child.props.disabled);
+      const badge = child.props.badge;
+      const color = child.props.color;
+      return {
+        value,
+        text,
+        icon,
+        disabled,
+        badge,
+        color,
+        child,
+        index,
+      };
+    });
+  }
+
+  getActiveValue(tabs) {
+    if (this.props.value !== undefined) {
+      return this.props.value;
+    }
+    const { internalTab } = this.state;
+    if (tabs.some((t) => t.value === internalTab)) {
+      return internalTab;
+    }
+    const firstEnabled = tabs.find((t) => !t.disabled) ?? tabs[0];
+    return firstEnabled ? firstEnabled.value : 0;
+  }
+
+  handleTabChange(event, nextValue) {
+    if (this.props.value === undefined) {
+      this.setState({ internalTab: nextValue }, () => {
+        if (typeof window !== 'undefined') {
+          window.dispatchEvent(new Event('resize'));
+        }
+      });
+    } else if (typeof window !== 'undefined') {
+      window.dispatchEvent(new Event('resize'));
+    }
+    this.props.onChange?.(nextValue, event);
+  }
+
+  render() {
+    const {
+      sx,
+      tabsWrapperSx,
+      tabsSx,
+      tabSx,
+    } = this.props;
+
+    const tabs = this.getTabs();
+    if (tabs.length === 0) return null;
+
+    const activeValue = this.getActiveValue(tabs);
+    const activeTab = tabs.find((t) => t.value === activeValue) ?? tabs[0];
+
+    return (
+      <Box sx={sx}>
+        <Box
+          sx={{
+            mb: 2,
+            borderBottom: 1,
+            borderColor: 'divider',
+            ...tabsWrapperSx,
+          }}
+        >
+          <Tabs
+            value={activeValue}
+            onChange={this.handleTabChange}
+            textColor="primary"
+            indicatorColor="primary"
+            sx={{
+              minHeight: 44,
+              '& .MuiTabs-flexContainer': {
+                gap: 1,
+              },
+              '& .MuiTab-root': {
+                minHeight: 44,
+                textTransform: 'none',
+                fontSize: '0.9375rem',
+                fontWeight: 600,
+                gap: 1,
+                px: 2,
+                py: 1,
+                borderRadius: '8px 8px 0 0',
+                color: 'text.secondary',
+                '&:hover': {
+                  bgcolor: 'action.hover',
+                  color: 'text.primary',
+                },
+                '&.Mui-selected': {
+                  color: 'text.primary',
+                  fontWeight: 700,
+                },
+                '& .MuiSvgIcon-root': {
+                  fontSize: 20,
+                },
+                ...tabSx,
+              },
+              ...tabsSx,
+            }}
+          >
+            {tabs.map((tab) => (
+              <Tab
+                key={String(tab.value)}
+                value={tab.value}
+                disabled={tab.disabled}
+                icon={tab.icon}
+                iconPosition="start"
+                label={
+                  tab.badge != null ? (
+                    <Box sx={{ display: 'inline-flex', alignItems: 'center', gap: 1 }}>
+                      <span>{tab.text}</span>
+                      <Chip
+                        size="small"
+                        label={tab.badge}
+                        sx={{ height: 20, fontSize: '0.75rem', fontWeight: 600 }}
+                      />
+                    </Box>
+                  ) : (
+                    tab.text
+                  )
+                }
+              />
+            ))}
+          </Tabs>
+        </Box>
+
+        {activeTab ? React.cloneElement(activeTab.child, { key: String(activeTab.value) }) : null}
+      </Box>
+    );
+  }
+}
+
+export default TabbedPanelTileGrid;

src/panels/index.js

@@ -1,4 +1,12 @@
 export { PanelTile, PanelTileGrid, GRID_COLUMNS } from './PanelTile';
+export { TabbedPanelTileGrid } from './TabbedPanelTileGrid';
 export { EditablePanelTile } from './EditablePanelTile';
 export { injectMuiTheme } from './injectMuiTheme';
-export { PENDING_EDIT_BORDER } from './panelTileLayout';
+export {
+  PENDING_EDIT_BORDER,
+  PANEL_TILE_BORDER_RADIUS,
+  PANEL_TILE_GRADIENT_LIGHT,
+  PANEL_TILE_GRADIENT_TINTED,
+  PANEL_TILE_GRADIENT_DARK,
+  PANEL_TILE_GRADIENT_DARK_TINTED,
+} from './panelTileLayout';

src/panels/panelTileLayout.js

@@ -31,6 +31,15 @@ export const tileActionIconSx = {
 
 export const PANEL_TILE_BORDER_RADIUS = 4;
 
+export const PANEL_TILE_GRADIENT_LIGHT =
+  'linear-gradient(135deg, #ffffff 0%, #f8fafc 50%, #f1f5f9 100%)';
+export const PANEL_TILE_GRADIENT_TINTED =
+  'linear-gradient(135deg, rgba(255, 255, 255, 0.45) 0%, rgba(255, 255, 255, 0) 55%, rgba(0, 0, 0, 0.04) 100%)';
+export const PANEL_TILE_GRADIENT_DARK =
+  'linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0) 50%, rgba(0, 0, 0, 0.2) 100%)';
+export const PANEL_TILE_GRADIENT_DARK_TINTED =
+  'linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 50%, rgba(0, 0, 0, 0.2) 100%)';
+
 function tileRingBoxShadow(ringColor, elevationShadow) {
   const inset = `inset 0 0 0 ${PENDING_EDIT_RING_PX}px ${ringColor}`;
   return elevationShadow ? `${inset}, ${elevationShadow}` : inset;
@@ -52,6 +61,14 @@ export function panelTilePaperSx({
       ? EDITING_TILE_BORDER
       : null;
 
+  const isDark = theme?.palette?.mode === 'dark';
+  const defaultGradient = isDark
+    ? PANEL_TILE_GRADIENT_DARK
+    : PANEL_TILE_GRADIENT_LIGHT;
+  const coloredGradient = isDark
+    ? PANEL_TILE_GRADIENT_DARK_TINTED
+    : PANEL_TILE_GRADIENT_TINTED;
+
   return {
     gridColumn: responsiveColumnSpan(wide),
     position: 'relative',
@@ -61,7 +78,14 @@ export function panelTilePaperSx({
     flexDirection: 'column',
     border: 'none',
     borderRadius: PANEL_TILE_BORDER_RADIUS,
-    ...(color ? { bgcolor: color } : {}),
+    ...(color
+      ? {
+          bgcolor: color,
+          backgroundImage: coloredGradient,
+        }
+      : {
+          backgroundImage: defaultGradient,
+        }),
     ...(ringColor
       ? {
           boxShadow: tileRingBoxShadow(ringColor, elevationShadow),

vite.config.js

@@ -1,13 +1,15 @@
 import { defineConfig } from 'vite';
 import react from '@vitejs/plugin-react';
+import { qrcode } from 'vite-plugin-qrcode';
 import { componentDocsPlugin } from './vite-plugin-component-docs.js';
 
 // Library dev server — renders the mock pages under /dev so components can be
 // inspected in isolation, and doubles as a Vite config for consumers that want
 // to preview this package standalone.
 export default defineConfig({
-  plugins: [react(), componentDocsPlugin()],
+  plugins: [react(), componentDocsPlugin(), qrcode()],
   server: {
+    host: true,
     port: 5199,
   },
   build: {