diff --git a/webui/src/routes/import/-route.test.tsx b/webui/src/routes/import/-route.test.tsx
index 7f9634fc..989aaacb 100644
--- a/webui/src/routes/import/-route.test.tsx
+++ b/webui/src/routes/import/-route.test.tsx
@@ -304,13 +304,6 @@ describe('import route', () => {
     expect(await screen.findByRole('button', { name: /^Needs Review\s*1$/ })).toBeInTheDocument();
     expect(screen.getAllByText('Album A').length).toBeGreaterThan(0);
     expect(screen.getByText('Watching')).toHaveAttribute('data-tone', 'success');
-    const compactFilterGroup = document.querySelector('#auto-import-results [data-size="sm"]');
-    expect(compactFilterGroup).toBeInTheDocument();
-    const intervalSelect = document.getElementById('auto-import-interval');
-    if (!(intervalSelect instanceof HTMLElement)) {
-      throw new Error('auto-import interval select missing');
-    }
-    expect(intervalSelect).toHaveAttribute('data-size', 'sm');
     expect(getFetchUrls().some((url) => url.includes('/api/import/staging/groups'))).toBe(false);
     expect(getFetchUrls().some((url) => url.includes('/api/import/staging/suggestions'))).toBe(
       false,
diff --git a/webui/src/routes/import/-ui/album-import-tab.tsx b/webui/src/routes/import/-ui/album-import-tab.tsx
index d5ba7511..f74b79ae 100644
--- a/webui/src/routes/import/-ui/album-import-tab.tsx
+++ b/webui/src/routes/import/-ui/album-import-tab.tsx
@@ -1,10 +1,10 @@
 import { useQuery } from '@tanstack/react-query';
 import { type DragEvent, type KeyboardEvent, useState } from 'react';
+import clsx from 'clsx';
 
 import { Button, TextInput } from '@/components/form/form';
 
 import type { ImportAlbumResult } from '../-import.types';
-import styles from './import-page.module.css';
 
 import {
   importStagingGroupsQueryOptions,
@@ -20,6 +20,7 @@ import {
   IMPORT_PLACEHOLDER_IMAGE,
 } from '../-import.helpers';
 import { useAlbumImportWorkflow } from '../-import.store';
+import styles from './import-page.module.css';
 import {
   fallbackImage,
   getErrorMessage,
@@ -235,10 +236,7 @@ function AlbumImportPanelContent({ viewModel }: { viewModel: AlbumImportViewMode
 
   return (
     <>
-      <div
-        id="import-page-album-search-section"
-        className={showingMatch ? styles.hidden : ''}
-      >
+      <div id="import-page-album-search-section" className={clsx({ [styles.hidden]: showingMatch })}>
         {albumResults === null && (
           <>
             {groups.length > 0 && (
@@ -246,10 +244,9 @@ function AlbumImportPanelContent({ viewModel }: { viewModel: AlbumImportViewMode
                 <div className={styles.importPageSectionLabel}>Auto-Detected Albums</div>
                 <div className={styles.importPageAlbumGrid}>
                   {groups.map((group, index) => (
-                  <button
+                    <button
                       key={`${group.artist}-${group.album}-${index}`}
-                      type="button"
-                      className={`${styles.importPageAlbumCard} ${styles.importPageAutoGroupCard}`}
+                      className={clsx(styles.importPageAlbumCard, styles.importPageAutoGroupCard)}
                       onClick={() => onRunGroupSearch(group)}
                     >
                       <div className={styles.importPageAutoGroupCount}>{group.file_count}</div>
@@ -299,17 +296,16 @@ function AlbumImportPanelContent({ viewModel }: { viewModel: AlbumImportViewMode
             }}
           />
           <Button
-            type="button"
             variant="ghost"
             size="icon"
-            className={albumResults === null ? styles.hidden : ''}
+            className={clsx({ [styles.hidden]: albumResults === null })}
             id="import-page-album-clear-btn"
             title="Clear search"
             onClick={onBackToSearch}
           >
             x
           </Button>
-          <Button type="button" variant="primary" onClick={onRunSearch}>
+          <Button variant="primary" onClick={onRunSearch}>
             Search
           </Button>
         </div>
@@ -333,10 +329,7 @@ function AlbumImportPanelContent({ viewModel }: { viewModel: AlbumImportViewMode
         </div>
       </div>
 
-      <div
-        id="import-page-album-match-section"
-        className={showingMatch ? '' : styles.hidden}
-      >
+      <div id="import-page-album-match-section" className={clsx({ [styles.hidden]: !showingMatch })}>
         {albumMatchLoading ? (
           <div className={styles.importPageEmptyState}>Matching files to tracklist...</div>
         ) : albumMatchError ? (
@@ -344,7 +337,9 @@ function AlbumImportPanelContent({ viewModel }: { viewModel: AlbumImportViewMode
         ) : albumMatch?.album ? (
           <AlbumMatchPanel viewModel={viewModel} />
         ) : (
-          <div className={styles.importPageEmptyState}>Select an album to start matching files.</div>
+          <div className={styles.importPageEmptyState}>
+            Select an album to start matching files.
+          </div>
         )}
       </div>
     </>
@@ -359,7 +354,7 @@ function AlbumCard({
   onSelect: (album: ImportAlbumResult) => void;
 }) {
   return (
-    <button type="button" className={styles.importPageAlbumCard} onClick={() => onSelect(album)}>
+    <button className={styles.importPageAlbumCard} onClick={() => onSelect(album)}>
       <img
         src={album.image_url || IMPORT_PLACEHOLDER_IMAGE}
         alt={album.name}
@@ -435,20 +430,10 @@ function AlbumMatchPanel({ viewModel }: { viewModel: AlbumImportViewModel }) {
       <div className={styles.importPageMatchHeader}>
         <h3>Track Matching</h3>
         <div className={styles.importPageMatchActions}>
-          <Button
-            type="button"
-            variant="secondary"
-            size="sm"
-            onClick={onAutoRematch}
-          >
+          <Button variant="secondary" onClick={onAutoRematch}>
             Re-match Automatically
           </Button>
-          <Button
-            type="button"
-            variant="ghost"
-            size="sm"
-            onClick={onBackToSearch}
-          >
+          <Button variant="ghost" onClick={onBackToSearch}>
             Back to Search
           </Button>
         </div>
@@ -467,9 +452,10 @@ function AlbumMatchPanel({ viewModel }: { viewModel: AlbumImportViewModel }) {
           return (
             <div
               key={`${trackInfo.displayTrackNumber}-${trackInfo.name}-${index}`}
-              className={`${styles.importPageMatchRow} ${
-                file ? styles.matched : ''
-              } ${dragOverTrack === index ? styles.dragOver : ''}`}
+              className={clsx(styles.importPageMatchRow, {
+                [styles.matched]: file,
+                [styles.dragOver]: dragOverTrack === index,
+              })}
               onClick={() => {
                 if (tapSelectedChip !== null) onTapAssign(index, tapSelectedChip);
               }}
@@ -488,18 +474,16 @@ function AlbumMatchPanel({ viewModel }: { viewModel: AlbumImportViewModel }) {
             >
               <span className={styles.importPageMatchNum}>{trackInfo.displayTrackNumber}</span>
               <span className={styles.importPageMatchTrack}>{trackInfo.name}</span>
-              <span
-                className={`${styles.importPageMatchFile} ${
-                  file ? styles.hasFile : ''
-                }`}
-              >
+              <span className={clsx(styles.importPageMatchFile, {
+                [styles.hasFile]: file,
+              })}>
                 {file ? (
                   <>
                     <span className={styles.importPageMatchFileName}>{file.filename}</span>
                     <span
-                      className={`${styles.importPageMatchConfidence} ${
-                        confidence >= 0.7 ? '' : styles.low
-                      }`}
+                      className={clsx(styles.importPageMatchConfidence, {
+                        [styles.low]: confidence < 0.7,
+                      })}
                     >
                       {confidencePercent}%
                     </span>
@@ -511,7 +495,6 @@ function AlbumMatchPanel({ viewModel }: { viewModel: AlbumImportViewModel }) {
               <span>
                 {file ? (
                   <Button
-                    type="button"
                     variant="ghost"
                     size="icon"
                     onClick={(event) => {
@@ -541,9 +524,9 @@ function AlbumMatchPanel({ viewModel }: { viewModel: AlbumImportViewModel }) {
                 key={`${file.full_path}-${index}`}
                 role="button"
                 tabIndex={0}
-                className={`${styles.importPageFileChip} ${
-                  tapSelectedChip === index ? styles.selected : ''
-                }`}
+                className={clsx(styles.importPageFileChip, {
+                  [styles.selected]: tapSelectedChip === index,
+                })}
                 draggable
                 onClick={(event) => {
                   event.stopPropagation();
@@ -572,7 +555,6 @@ function AlbumMatchPanel({ viewModel }: { viewModel: AlbumImportViewModel }) {
           {matchedCount} of {albumMatch.matches?.length ?? 0} tracks matched
         </div>
         <Button
-          type="button"
           variant="primary"
           id="import-page-album-process-btn"
           disabled={matchedCount === 0}
diff --git a/webui/src/routes/import/-ui/auto-import-tab.tsx b/webui/src/routes/import/-ui/auto-import-tab.tsx
index 0df970d6..0b874f21 100644
--- a/webui/src/routes/import/-ui/auto-import-tab.tsx
+++ b/webui/src/routes/import/-ui/auto-import-tab.tsx
@@ -1,4 +1,5 @@
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import clsx from 'clsx';
 import { useEffect, useState } from 'react';
 
 import {
@@ -179,9 +180,7 @@ export function AutoImportPanel({
           <div className={styles.importPageFlexSpacer} />
           {statusQuery.data?.running ? (
             <Button
-              type="button"
               variant="secondary"
-              size="sm"
               id="auto-import-scan-now"
               title="Scan import folder now"
               disabled={scanMutation.isPending}
@@ -222,7 +221,6 @@ export function AutoImportPanel({
               </Select>
             </div>
             <Button
-              type="button"
               variant="primary"
               size="sm"
               disabled={saveSettingsMutation.isPending}
@@ -271,9 +269,7 @@ export function AutoImportPanel({
           <div className={styles.importPageFlexSpacer} />
           {counts.review > 0 ? (
             <Button
-              type="button"
               variant="secondary"
-              size="sm"
               id="auto-import-approve-all"
               disabled={approveAllMutation.isPending}
               onClick={() => approveAllMutation.mutate()}
@@ -283,11 +279,10 @@ export function AutoImportPanel({
           ) : null}
           {counts.imported + counts.failed > 0 ? (
             <Button
-              type="button"
               variant="ghost"
-              size="sm"
               id="auto-import-clear-completed"
               disabled={clearMutation.isPending}
+              size="sm"
               onClick={() => clearMutation.mutate()}
             >
               Clear History
@@ -389,7 +384,7 @@ function AutoImportResultCard({
 
   return (
     <div
-      className={`${styles.autoImportCard} ${statusCardClass}`}
+      className={clsx(styles.autoImportCard, statusCardClass)}
       role="button"
       tabIndex={0}
       onClick={onToggle}
@@ -432,12 +427,12 @@ function AutoImportResultCard({
           ) : null}
         </div>
         <div className={styles.autoImportCardRight}>
-          <div className={`${styles.autoImportStatusBadge} ${statusBadgeClass}`}>
+          <div className={clsx(styles.autoImportStatusBadge, statusBadgeClass)}>
             {statusMeta.icon} {statusMeta.label}
           </div>
           <div className={styles.autoImportConfidenceBar}>
             <div
-              className={`${styles.autoImportConfidenceFill} ${confidenceFillClass}`}
+              className={clsx(styles.autoImportConfidenceFill, confidenceFillClass)}
               style={{ width: `${confidencePercent}%` }}
             />
           </div>
@@ -445,9 +440,7 @@ function AutoImportResultCard({
           {result.status === 'pending_review' ? (
             <div className={styles.autoImportActions}>
               <Button
-                type="button"
                 variant="primary"
-                size="sm"
                 disabled={approvePending}
                 onClick={(event) => {
                   event.stopPropagation();
@@ -457,9 +450,7 @@ function AutoImportResultCard({
                 Approve & Import
               </Button>
               <Button
-                type="button"
                 variant="secondary"
-                size="sm"
                 disabled={rejectPending}
                 onClick={(event) => {
                   event.stopPropagation();
@@ -475,7 +466,9 @@ function AutoImportResultCard({
       <div className={styles.autoImportCardFolderPath}>{result.folder_name}</div>
       {trackDetails.length > 0 ? (
         <div
-          className={`${styles.autoImportTrackList} ${expanded ? styles.expanded : ''}`}
+          className={clsx(styles.autoImportTrackList, {
+            [styles.expanded]: expanded,
+          })}
           id={`auto-import-tracks-${index}`}
         >
           <div className={styles.autoImportTrackListHeader}>
@@ -484,23 +477,21 @@ function AutoImportResultCard({
             <span>Conf</span>
           </div>
           {trackDetails.map((track, trackIndex) => {
-            const rowClassName = [
-              styles.autoImportTrackRow,
-              isLiveProcessing && liveTrackIndex > 0 && trackIndex + 1 === liveTrackIndex
-                ? styles.autoImportTrackRowActive
-                : '',
-              isLiveProcessing && liveTrackIndex > 0 && trackIndex + 1 < liveTrackIndex
-                ? styles.autoImportTrackRowDone
-                : '',
-            ]
-              .filter(Boolean)
-              .join(' ');
+            const rowClassName = clsx(styles.autoImportTrackRow, {
+              [styles.autoImportTrackRowActive]:
+                isLiveProcessing && liveTrackIndex > 0 && trackIndex + 1 === liveTrackIndex,
+              [styles.autoImportTrackRowDone]:
+                isLiveProcessing && liveTrackIndex > 0 && trackIndex + 1 < liveTrackIndex,
+            });
             return (
               <div key={`${track.name}-${track.file}-${trackIndex}`} className={rowClassName}>
                 <span className={styles.autoImportTrackName}>{track.name}</span>
                 <span className={styles.autoImportTrackFile}>{track.file}</span>
                 <span
-                  className={`${styles.autoImportTrackConf} ${getAutoImportConfidenceClass(getConfidenceClass(track.confidence))}`}
+                  className={clsx(
+                    styles.autoImportTrackConf,
+                    getAutoImportConfidenceClass(getConfidenceClass(track.confidence)),
+                  )}
                 >
                   {track.confidence}%
                 </span>
diff --git a/webui/src/routes/import/-ui/import-page.tsx b/webui/src/routes/import/-ui/import-page.tsx
index cc12988c..32501f51 100644
--- a/webui/src/routes/import/-ui/import-page.tsx
+++ b/webui/src/routes/import/-ui/import-page.tsx
@@ -1,7 +1,8 @@
 import { Link, Outlet } from '@tanstack/react-router';
+import clsx from 'clsx';
 
-import { Show } from '@/components/primitives';
 import { Button } from '@/components/form/form';
+import { Show } from '@/components/primitives';
 import { useReactPageShell } from '@/platform/shell/route-controllers';
 
 import type { ImportQueueEntry } from '../-import.types';
@@ -37,7 +38,7 @@ export function ImportPage() {
         />
         <ImportProcessingQueue />
         <ImportTabNav />
-        <section className={`${styles.importPageTabContent} ${styles.active}`}>
+        <section className={clsx(styles.importPageTabContent, styles.active)}>
           <Outlet />
         </section>
       </div>
@@ -78,7 +79,6 @@ function ImportHeader({
           <span>Import Music</span>
         </h1>
         <Button
-          type="button"
           variant="secondary"
           title="Re-scan import folder"
           aria-busy={refreshing}
@@ -112,15 +112,15 @@ function ImportProcessingQueue() {
 
   return (
     <section
-      className={`${styles.importPageQueue} ${queue.length === 0 ? styles.hidden : ''}`}
+      className={clsx(styles.importPageQueue, {
+        [styles.hidden]: queue.length === 0,
+      })}
       id="import-page-queue"
     >
       <div className={styles.importPageQueueHeader}>
         <span className={styles.importPageQueueTitle}>Processing</span>
         <Button
-          type="button"
           variant="ghost"
-          size="sm"
           id="import-page-queue-clear"
           style={{ display: hasFinished ? undefined : 'none' }}
           onClick={clearFinishedJobs}
@@ -139,12 +139,10 @@ function ImportProcessingQueue() {
 
 function ImportQueueItem({ entry }: { entry: ImportQueueEntry }) {
   const statusText = getQueueStatusText(entry);
-  const statusClass =
-    entry.status === 'error' || (entry.status === 'done' && entry.errors.length > 0)
-      ? styles.error
-      : entry.status === 'done'
-        ? styles.done
-        : '';
+  const statusClass = clsx({
+    [styles.error]: entry.status === 'error' || (entry.status === 'done' && entry.errors.length > 0),
+    [styles.done]: entry.status === 'done',
+  });
 
   return (
     <div className={styles.importPageQueueItem}>
@@ -156,7 +154,7 @@ function ImportQueueItem({ entry }: { entry: ImportQueueEntry }) {
           onError={fallbackImage}
         />
       ) : (
-        <div className={`${styles.importPageQueueArt} ${styles.importPageQueueArtEmpty}`}>♪</div>
+        <div className={clsx(styles.importPageQueueArt, styles.importPageQueueArtEmpty)}>♪</div>
       )}
       <div className={styles.importPageQueueInfo}>
         <div className={styles.importPageQueueName}>{entry.label}</div>
@@ -165,13 +163,13 @@ function ImportQueueItem({ entry }: { entry: ImportQueueEntry }) {
       <div className={styles.importPageQueueProgress}>
         <div className={styles.importPageQueueBar}>
           <div
-            className={`${styles.importPageQueueFill} ${
-              entry.status === 'error' ? styles.error : ''
-            }`}
+            className={clsx(styles.importPageQueueFill, {
+              [styles.error]: entry.status === 'error',
+            })}
             style={{ width: `${getQueueProgressPercent(entry)}%` }}
           />
         </div>
-        <div className={`${styles.importPageQueueStatus} ${statusClass}`}>{statusText}</div>
+        <div className={clsx(styles.importPageQueueStatus, statusClass)}>{statusText}</div>
       </div>
     </div>
   );
@@ -183,7 +181,7 @@ function ImportTabNav() {
       <Link
         to="/import/auto"
         className={styles.importPageTab}
-        activeProps={{ className: `${styles.importPageTab} ${styles.active}` }}
+        activeProps={{ className: clsx(styles.importPageTab, styles.active) }}
         id="import-page-tab-auto"
       >
         Auto
@@ -191,7 +189,7 @@ function ImportTabNav() {
       <Link
         to="/import/album"
         className={styles.importPageTab}
-        activeProps={{ className: `${styles.importPageTab} ${styles.active}` }}
+        activeProps={{ className: clsx(styles.importPageTab, styles.active) }}
         id="import-page-tab-album"
       >
         Albums
@@ -199,7 +197,7 @@ function ImportTabNav() {
       <Link
         to="/import/singles"
         className={styles.importPageTab}
-        activeProps={{ className: `${styles.importPageTab} ${styles.active}` }}
+        activeProps={{ className: clsx(styles.importPageTab, styles.active) }}
         id="import-page-tab-singles"
       >
         Singles
diff --git a/webui/src/routes/import/-ui/singles-import-tab.tsx b/webui/src/routes/import/-ui/singles-import-tab.tsx
index e6d2014b..ae6701e4 100644
--- a/webui/src/routes/import/-ui/singles-import-tab.tsx
+++ b/webui/src/routes/import/-ui/singles-import-tab.tsx
@@ -1,3 +1,4 @@
+import clsx from 'clsx';
 import { useEffect } from 'react';
 
 import { Badge, Button, Checkbox, TextInput } from '@/components/form/form';
@@ -175,17 +176,15 @@ export function SinglesImportPanel({
     <>
       <div className={styles.importPageSinglesHeader}>
         <div className={styles.importPageSinglesActions}>
-          <Button type="button" variant="secondary" size="sm" onClick={onSelectAll}>
+          <Button variant="secondary" onClick={onSelectAll}>
             <span id="import-page-select-all-text">
               {allSelected ? 'Deselect All' : 'Select All'}
             </span>
           </Button>
           <Button
-            type="button"
             variant={processVariant}
             id="import-page-singles-process-btn"
             disabled={selectedCount === 0}
-            size="sm"
             onClick={onProcessSingles}
           >
             <span>Process Selected</span>
@@ -205,7 +204,9 @@ export function SinglesImportPanel({
             return (
               <div
                 key={fileKey}
-                className={`${styles.importPageSingleItem} ${manualMatch ? styles.matched : ''}`}
+                className={clsx(styles.importPageSingleItem, {
+                  [styles.matched]: manualMatch,
+                })}
                 data-single-key={fileKey}
               >
                 <label className={styles.importPageSingleCheckboxWrap}>
@@ -226,7 +227,6 @@ export function SinglesImportPanel({
                     <div className={styles.importPageSingleMatchedInfo}>
                       ✓ {manualMatch.name} - {manualMatch.artist}
                       <button
-                        type="button"
                         className={styles.importPageSingleMatchedChange}
                         onClick={() => onOpenSearch(file)}
                       >
@@ -236,12 +236,7 @@ export function SinglesImportPanel({
                   ) : null}
                 </div>
                 <div className={styles.importPageSingleActions}>
-                  <Button
-                    type="button"
-                    variant="secondary"
-                    size="sm"
-                    onClick={() => onOpenSearch(file)}
-                  >
+                  <Button variant="secondary" size="sm" onClick={() => onOpenSearch(file)}>
                     🔍 Identify
                   </Button>
                 </div>
@@ -291,12 +286,7 @@ function SingleSearchPanel({
             if (event.key === 'Enter') onRunSearch(fileKey, query);
           }}
         />
-        <Button
-          type="button"
-          variant="primary"
-          size="sm"
-          onClick={() => onRunSearch(fileKey, query)}
-        >
+        <Button variant="primary" onClick={() => onRunSearch(fileKey, query)}>
           Search
         </Button>
       </div>
@@ -311,7 +301,6 @@ function SingleSearchPanel({
           searchState?.results.map((track, index) => (
             <button
               key={`${track.source || 'source'}-${track.id}-${index}`}
-              type="button"
               className={styles.importPageSingleResultItem}
               onClick={() => onSelectMatch(fileKey, track)}
             >