feat: implement DirectoryAutocomplete component and integrate it into DirectoryExplorerDialog for enhanced path selection

CHANGELOG.md

@@ -10,6 +10,7 @@ All notable changes to this project will be documented in this file.
 - Autocomplete: added scope badges for commands/agents/skills.
 - Compact: changed /summarize command to be /compact and use sdk for compaction.
 - MCP: added ability to dynamically enabled/disabled configured MCP.
+- Web: refactored project adding UI with autocomplete.
 
 
 ## [1.4.4] - 2026-01-08

packages/ui/src/components/session/DirectoryAutocomplete.tsx

@@ -0,0 +1,314 @@
+import React from 'react';
+import { RiFolderLine, RiRefreshLine } from '@remixicon/react';
+import { cn } from '@/lib/utils';
+import { opencodeClient, type FilesystemEntry } from '@/lib/opencode/client';
+import { useDebouncedValue } from '@/hooks/useDebouncedValue';
+
+interface DirectoryAutocompleteProps {
+  inputValue: string;
+  homeDirectory: string | null;
+  onSelectSuggestion: (path: string) => void;
+  visible: boolean;
+  onClose: () => void;
+  showHidden: boolean;
+}
+
+export interface DirectoryAutocompleteHandle {
+  handleKeyDown: (e: React.KeyboardEvent<HTMLInputElement>) => boolean;
+}
+
+export const DirectoryAutocomplete = React.forwardRef<DirectoryAutocompleteHandle, DirectoryAutocompleteProps>(({
+  inputValue,
+  homeDirectory,
+  onSelectSuggestion,
+  visible,
+  onClose,
+  showHidden,
+}, ref) => {
+  const [suggestions, setSuggestions] = React.useState<FilesystemEntry[]>([]);
+  const [loading, setLoading] = React.useState(false);
+  const [selectedIndex, setSelectedIndex] = React.useState(0);
+  const containerRef = React.useRef<HTMLDivElement | null>(null);
+  const itemRefs = React.useRef<(HTMLDivElement | null)[]>([]);
+
+  // Fuzzy matching score - returns null if no match, higher score = better match
+  const fuzzyScore = React.useCallback((query: string, candidate: string): number | null => {
+    const q = query.trim().toLowerCase();
+    if (!q) {
+      return 0;
+    }
+
+    const c = candidate.toLowerCase();
+    let score = 0;
+    let lastIndex = -1;
+    let consecutive = 0;
+
+    for (let i = 0; i < q.length; i += 1) {
+      const ch = q[i];
+      if (!ch || ch === ' ') {
+        continue;
+      }
+
+      const idx = c.indexOf(ch, lastIndex + 1);
+      if (idx === -1) {
+        return null; // Character not found - no match
+      }
+
+      const gap = idx - lastIndex - 1;
+      if (gap === 0) {
+        consecutive += 1;
+      } else {
+        consecutive = 0;
+      }
+
+      score += 10; // Base score per matched char
+      score += Math.max(0, 18 - idx); // Bonus for early matches
+      score -= Math.max(0, gap); // Penalty for gaps
+
+      // Bonus for match at start or after separator
+      if (idx === 0) {
+        score += 12;
+      } else {
+        const prev = c[idx - 1];
+        if (prev === '/' || prev === '_' || prev === '-' || prev === '.' || prev === ' ') {
+          score += 10;
+        }
+      }
+
+      score += consecutive > 0 ? 12 : 0; // Bonus for consecutive matches
+      lastIndex = idx;
+    }
+
+    score += Math.max(0, 24 - Math.round(c.length / 3)); // Shorter names score higher
+    return score;
+  }, []);
+
+  // Expand ~ to home directory
+  const expandPath = React.useCallback((path: string): string => {
+    if (path.startsWith('~') && homeDirectory) {
+      return path.replace(/^~/, homeDirectory);
+    }
+    return path;
+  }, [homeDirectory]);
+
+  // Get the directory part of the path for listing
+  const getParentDir = React.useCallback((path: string): string => {
+    const expanded = expandPath(path);
+    // If ends with /, list that directory
+    if (expanded.endsWith('/')) {
+      return expanded;
+    }
+    // Otherwise, get parent directory
+    const lastSlash = expanded.lastIndexOf('/');
+    if (lastSlash === -1) return '';
+    if (lastSlash === 0) return '/';
+    return expanded.substring(0, lastSlash + 1);
+  }, [expandPath]);
+
+  // Get the partial name being typed (for filtering)
+  const getPartialName = React.useCallback((path: string): string => {
+    const expanded = expandPath(path);
+    if (expanded.endsWith('/')) return '';
+    const lastSlash = expanded.lastIndexOf('/');
+    if (lastSlash === -1) return expanded;
+    return expanded.substring(lastSlash + 1);
+  }, [expandPath]);
+
+  const debouncedInputValue = useDebouncedValue(inputValue, 150);
+
+  // Fetch directory suggestions
+  React.useEffect(() => {
+    if (!visible || !debouncedInputValue) {
+      setSuggestions([]);
+      return;
+    }
+
+    const parentDir = getParentDir(debouncedInputValue);
+    const partialName = getPartialName(debouncedInputValue).toLowerCase();
+
+    if (!parentDir) {
+      setSuggestions([]);
+      return;
+    }
+
+    let cancelled = false;
+    setLoading(true);
+
+    opencodeClient.listLocalDirectory(parentDir)
+      .then((entries) => {
+        if (cancelled) return;
+        
+        // Filter to directories only, respect hidden setting
+        const directories = entries.filter((entry) => {
+          if (!entry.isDirectory) return false;
+          if (!showHidden && entry.name.startsWith('.')) return false;
+          return true;
+        });
+
+        // Apply fuzzy matching and sort by score
+        const scored = partialName
+          ? directories
+              .map((entry) => {
+                const score = fuzzyScore(partialName, entry.name);
+                return score !== null ? { entry, score } : null;
+              })
+              .filter((item): item is { entry: FilesystemEntry; score: number } => item !== null)
+              .sort((a, b) => b.score - a.score || a.entry.name.localeCompare(b.entry.name))
+              .map((item) => item.entry)
+          : directories.sort((a, b) => a.name.localeCompare(b.name));
+
+        setSuggestions(scored.slice(0, 10)); // Limit suggestions
+        setSelectedIndex(0);
+      })
+      .catch(() => {
+        if (!cancelled) {
+          setSuggestions([]);
+        }
+      })
+      .finally(() => {
+        if (!cancelled) {
+          setLoading(false);
+        }
+      });
+
+    return () => {
+      cancelled = true;
+    };
+  }, [visible, debouncedInputValue, getParentDir, getPartialName, showHidden, fuzzyScore]);
+
+  // Scroll selected item into view
+  React.useEffect(() => {
+    itemRefs.current[selectedIndex]?.scrollIntoView({
+      behavior: 'smooth',
+      block: 'nearest'
+    });
+  }, [selectedIndex]);
+
+  // Handle outside click
+  React.useEffect(() => {
+    if (!visible) return;
+
+    const handlePointerDown = (event: MouseEvent | TouchEvent) => {
+      const target = event.target as Node | null;
+      if (!target || !containerRef.current) return;
+      if (containerRef.current.contains(target)) return;
+      onClose();
+    };
+
+    document.addEventListener('pointerdown', handlePointerDown, true);
+    return () => {
+      document.removeEventListener('pointerdown', handlePointerDown, true);
+    };
+  }, [visible, onClose]);
+
+  const handleSelectSuggestion = React.useCallback((entry: FilesystemEntry) => {
+    // Append the selected directory name to current path, with trailing slash
+    const path = entry.path.endsWith('/') ? entry.path : entry.path + '/';
+    onSelectSuggestion(path);
+  }, [onSelectSuggestion]);
+
+  // Expose key handler to parent
+  React.useImperativeHandle(ref, () => ({
+    handleKeyDown: (e: React.KeyboardEvent<HTMLInputElement>): boolean => {
+      if (!visible || suggestions.length === 0) {
+        return false;
+      }
+
+      const total = suggestions.length;
+
+      if (e.key === 'Tab') {
+        e.preventDefault();
+        if (e.shiftKey) {
+          // Shift+Tab: previous suggestion
+          setSelectedIndex((prev) => (prev - 1 + total) % total);
+        } else {
+          // Tab: next suggestion or select if only one
+          if (total === 1) {
+            const selected = suggestions[0];
+            if (selected) {
+              handleSelectSuggestion(selected);
+            }
+          } else {
+            setSelectedIndex((prev) => (prev + 1) % total);
+          }
+        }
+        return true;
+      }
+
+      if (e.key === 'ArrowDown') {
+        e.preventDefault();
+        setSelectedIndex((prev) => (prev + 1) % total);
+        return true;
+      }
+
+      if (e.key === 'ArrowUp') {
+        e.preventDefault();
+        setSelectedIndex((prev) => (prev - 1 + total) % total);
+        return true;
+      }
+
+      if (e.key === 'Enter') {
+        e.preventDefault();
+        // Select current item and close autocomplete
+        const safeIndex = ((selectedIndex % total) + total) % total;
+        const selected = suggestions[safeIndex];
+        if (selected) {
+          handleSelectSuggestion(selected);
+        }
+        onClose();
+        return true; // Consume the event, don't let parent confirm yet
+      }
+
+      if (e.key === 'Escape') {
+        e.preventDefault();
+        onClose();
+        return true;
+      }
+
+      return false;
+    }
+  }), [visible, suggestions, selectedIndex, handleSelectSuggestion, onClose]);
+
+  if (!visible || (suggestions.length === 0 && !loading)) {
+    return null;
+  }
+
+  return (
+    <div
+      ref={containerRef}
+      className="absolute z-[100] w-full max-h-48 bg-background border border-border rounded-lg shadow-lg top-full mt-1 left-0 flex flex-col overflow-hidden"
+    >
+      {loading ? (
+        <div className="flex items-center justify-center py-3">
+          <RiRefreshLine className="h-4 w-4 animate-spin text-muted-foreground" />
+        </div>
+      ) : (
+        <div className="overflow-y-auto py-1">
+          {suggestions.map((entry, index) => {
+            const isSelected = selectedIndex === index;
+            return (
+              <div
+                key={entry.path}
+                ref={(el) => { itemRefs.current[index] = el; }}
+                className={cn(
+                  "flex items-center gap-2 px-3 py-1.5 cursor-pointer typography-ui-label",
+                  isSelected && "bg-muted"
+                )}
+                onClick={() => { handleSelectSuggestion(entry); onClose(); }}
+                onMouseEnter={() => setSelectedIndex(index)}
+              >
+                <RiFolderLine className="h-4 w-4 text-muted-foreground flex-shrink-0" />
+                <span className="truncate">{entry.name}</span>
+              </div>
+            );
+          })}
+        </div>
+      )}
+      <div className="px-3 py-1.5 border-t typography-meta text-muted-foreground bg-sidebar/50">
+        Tab cycle • ↑↓ navigate • Enter select
+      </div>
+    </div>
+  );
+});
+
+DirectoryAutocomplete.displayName = 'DirectoryAutocomplete';

packages/ui/src/components/session/DirectoryExplorerDialog.tsx

@@ -19,9 +19,9 @@ import {
   RiCheckboxBlankLine,
   RiCheckboxLine,
 } from '@remixicon/react';
-import { ScrollableOverlay } from '@/components/ui/ScrollableOverlay';
 import { useDeviceInfo } from '@/lib/device';
 import { MobileOverlayPanel } from '@/components/ui/MobileOverlayPanel';
+import { DirectoryAutocomplete, type DirectoryAutocompleteHandle } from './DirectoryAutocomplete';
 
 const SHOW_HIDDEN_STORAGE_KEY = 'directoryTreeShowHidden';
 
@@ -57,6 +57,8 @@ export const DirectoryExplorerDialog: React.FC<DirectoryExplorerDialogProps> = (
   });
   const { isDesktop, requestAccess, startAccessing } = useFileSystemAccess();
   const { isMobile } = useDeviceInfo();
+  const [autocompleteVisible, setAutocompleteVisible] = React.useState(false);
+  const autocompleteRef = React.useRef<DirectoryAutocompleteHandle>(null);
 
   // Helper to format path for display
   const formatPath = React.useCallback((path: string | null) => {
@@ -69,6 +71,7 @@ export const DirectoryExplorerDialog: React.FC<DirectoryExplorerDialogProps> = (
     if (open) {
       setHasUserSelection(false);
       setIsConfirming(false);
+      setAutocompleteVisible(false);
       // Initialize with active project or current directory
       const activeProject = getActiveProject();
       const initialPath = activeProject?.path || currentDirectory || homeDirectory || '';
@@ -182,6 +185,8 @@ export const DirectoryExplorerDialog: React.FC<DirectoryExplorerDialogProps> = (
     const value = e.target.value;
     setPathInputValue(value);
     setHasUserSelection(true);
+    // Show autocomplete when typing a path
+    setAutocompleteVisible(value.startsWith('/') || value.startsWith('~'));
     // Update pending path if it looks like a valid path
     if (value.startsWith('/') || value.startsWith('~')) {
       // Expand ~ to home directory
@@ -193,62 +198,38 @@ export const DirectoryExplorerDialog: React.FC<DirectoryExplorerDialogProps> = (
   }, [homeDirectory]);
 
   const handlePathInputKeyDown = React.useCallback((e: React.KeyboardEvent<HTMLInputElement>) => {
+    // Let autocomplete handle the key first if visible
+    if (autocompleteRef.current?.handleKeyDown(e)) {
+      return;
+    }
     if (e.key === 'Enter') {
       e.preventDefault();
       handleConfirm();
     }
   }, [handleConfirm]);
 
+  const handleAutocompleteSuggestion = React.useCallback((path: string) => {
+    setPendingPath(path);
+    setHasUserSelection(true);
+    setPathInputValue(formatPath(path));
+    // Keep autocomplete open to allow further drilling down
+  }, [formatPath]);
+
+  const handleAutocompleteClose = React.useCallback(() => {
+    setAutocompleteVisible(false);
+  }, []);
+
   const toggleShowHidden = React.useCallback(() => {
     setShowHidden(prev => !prev);
   }, []);
 
 
 
-  const dialogHeader = (
-    <DialogHeader className="flex-shrink-0 px-4 pb-2 pt-[calc(var(--oc-safe-area-top,0px)+0.5rem)] sm:px-0 sm:pb-3 sm:pt-0">
-      <DialogTitle>Add project directory</DialogTitle>
-      <DialogDescription className="hidden sm:block">
-        Choose a folder to add as a project.
-      </DialogDescription>
-    </DialogHeader>
-  );
-
-  const pathInputSection = (
-    <Input
-      value={pathInputValue}
-      onChange={handlePathInputChange}
-      onKeyDown={handlePathInputKeyDown}
-      placeholder="Enter path or select from tree..."
-      className="font-mono typography-meta"
-      spellCheck={false}
-      autoComplete="off"
-      autoCorrect="off"
-      autoCapitalize="off"
-    />
-  );
-
-  const treeSection = (
-    <div className="flex-1 min-h-0 rounded-xl border border-border/40 bg-sidebar/70 p-1.5 sm:p-2 sm:flex-none">
-      <DirectoryTree
-        variant="inline"
-        currentPath={pendingPath ?? currentDirectory}
-        onSelectPath={handleSelectPath}
-        onDoubleClickPath={handleDoubleClickPath}
-        className="h-full sm:min-h-[280px] sm:h-[380px]"
-        selectionBehavior="deferred"
-        showHidden={showHidden}
-        rootDirectory={isHomeReady ? homeDirectory : null}
-        isRootReady={isHomeReady}
-      />
-    </div>
-  );
-
   const showHiddenToggle = (
     <button
       type="button"
       onClick={toggleShowHidden}
-      className="flex items-center gap-2 px-2 py-1.5 rounded-lg hover:bg-accent/40 transition-colors typography-meta text-muted-foreground"
+      className="flex items-center gap-2 px-2 py-1 rounded-lg hover:bg-accent/40 transition-colors typography-meta text-muted-foreground flex-shrink-0"
     >
       {showHidden ? (
         <RiCheckboxLine className="h-4 w-4 text-primary" />
@@ -259,6 +240,59 @@ export const DirectoryExplorerDialog: React.FC<DirectoryExplorerDialogProps> = (
     </button>
   );
 
+  const dialogHeader = (
+    <DialogHeader className="flex-shrink-0 px-4 pb-2 pt-[calc(var(--oc-safe-area-top,0px)+0.5rem)] sm:px-0 sm:pb-3 sm:pt-0">
+      <DialogTitle>Add project directory</DialogTitle>
+      <div className="hidden sm:flex sm:items-center sm:justify-between sm:gap-4">
+        <DialogDescription className="flex-1">
+          Choose a folder to add as a project.
+        </DialogDescription>
+        {showHiddenToggle}
+      </div>
+    </DialogHeader>
+  );
+
+  const pathInputSection = (
+    <div className="relative">
+      <Input
+        value={pathInputValue}
+        onChange={handlePathInputChange}
+        onKeyDown={handlePathInputKeyDown}
+        placeholder="Enter path or select from tree..."
+        className="font-mono typography-meta"
+        spellCheck={false}
+        autoComplete="off"
+        autoCorrect="off"
+        autoCapitalize="off"
+      />
+      <DirectoryAutocomplete
+        ref={autocompleteRef}
+        inputValue={pathInputValue}
+        homeDirectory={homeDirectory}
+        onSelectSuggestion={handleAutocompleteSuggestion}
+        visible={autocompleteVisible}
+        onClose={handleAutocompleteClose}
+        showHidden={showHidden}
+      />
+    </div>
+  );
+
+  const treeSection = (
+    <div className="flex-1 min-h-0 rounded-xl border border-border/40 bg-sidebar/70 overflow-hidden flex flex-col">
+      <DirectoryTree
+        variant="inline"
+        currentPath={pendingPath ?? currentDirectory}
+        onSelectPath={handleSelectPath}
+        onDoubleClickPath={handleDoubleClickPath}
+        className="flex-1 min-h-0 sm:min-h-[280px] sm:max-h-[380px]"
+        selectionBehavior="deferred"
+        showHidden={showHidden}
+        rootDirectory={isHomeReady ? homeDirectory : null}
+        isRootReady={isHomeReady}
+      />
+    </div>
+  );
+
   // Mobile: use flex layout where tree takes remaining space
   const mobileContent = (
     <div className="flex flex-col gap-3 h-full">
@@ -266,13 +300,13 @@ export const DirectoryExplorerDialog: React.FC<DirectoryExplorerDialogProps> = (
       <div className="flex-shrink-0 flex items-center justify-end">
         {showHiddenToggle}
       </div>
-      <div className="flex-1 min-h-0 rounded-xl border border-border/40 bg-sidebar/70 p-1.5 overflow-hidden">
+      <div className="flex-1 min-h-0 rounded-xl border border-border/40 bg-sidebar/70 overflow-hidden flex flex-col">
         <DirectoryTree
           variant="inline"
           currentPath={pendingPath ?? currentDirectory}
           onSelectPath={handleSelectPath}
           onDoubleClickPath={handleDoubleClickPath}
-          className="h-full"
+          className="flex-1 min-h-0"
           selectionBehavior="deferred"
           showHidden={showHidden}
           rootDirectory={isHomeReady ? homeDirectory : null}
@@ -284,16 +318,10 @@ export const DirectoryExplorerDialog: React.FC<DirectoryExplorerDialogProps> = (
   );
 
   const desktopContent = (
-    <ScrollableOverlay
-      outerClassName="flex-1 min-h-0 overflow-hidden"
-      className="directory-dialog-body sm:px-0 sm:pb-0 flex flex-col gap-3"
-    >
+    <div className="flex-1 min-h-0 overflow-hidden flex flex-col gap-3">
       {pathInputSection}
-      <div className="flex items-center justify-end">
-        {showHiddenToggle}
-      </div>
       {treeSection}
-    </ScrollableOverlay>
+    </div>
   );
 
   const renderActionButtons = () => (
@@ -345,7 +373,7 @@ export const DirectoryExplorerDialog: React.FC<DirectoryExplorerDialogProps> = (
         {dialogHeader}
         {desktopContent}
         <DialogFooter
-          className="sticky bottom-0 flex w-full flex-shrink-0 flex-row gap-2 border-t border-border/40 bg-sidebar px-4 py-3 sm:static sm:justify-end sm:border-0 sm:bg-transparent sm:px-0 sm:pt-3"
+          className="sticky bottom-0 flex w-full flex-shrink-0 flex-row gap-2 border-t border-border/40 bg-sidebar px-4 py-3 sm:static sm:justify-end sm:border-0 sm:bg-transparent sm:px-0 sm:pt-4 sm:pb-0"
         >
           {renderActionButtons()}
         </DialogFooter>

packages/ui/src/components/session/DirectoryTree.tsx

@@ -8,9 +8,10 @@ import {
   DropdownMenuTrigger,
   DropdownMenuSeparator,
 } from '@/components/ui/dropdown-menu';
-import { RiAddLine, RiArrowDownSLine, RiArrowRightSLine, RiCheckLine, RiCloseLine, RiFolder6Line, RiPushpin2Line, RiPushpinLine, RiStarLine } from '@remixicon/react';
+import { RiAddLine, RiArrowDownSLine, RiArrowRightSLine, RiCheckLine, RiCloseLine, RiFolder6Line, RiPushpin2Line, RiPushpinLine } from '@remixicon/react';
 import { cn, formatPathForDisplay } from '@/lib/utils';
 import { opencodeClient } from '@/lib/opencode/client';
+import { useDeviceInfo } from '@/lib/device';
 import { isDesktopRuntime, getDesktopSettings } from '@/lib/desktop';
 import type { DesktopSettings } from '@/lib/desktop';
 import { updateDesktopSettings } from '@/lib/persistence';
@@ -54,6 +55,7 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
   alwaysShowActions = false,
 }) => {
   const desktopRuntime = React.useMemo(() => isDesktopRuntime(), []);
+  const { isMobile } = useDeviceInfo();
   const [directories, setDirectories] = React.useState<DirectoryItem[]>([]);
   const [expandedPaths, setExpandedPaths] = React.useState<Set<string>>(new Set());
   const [isLoading, setIsLoading] = React.useState(true);
@@ -314,10 +316,12 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
     });
   }, [effectiveRoot, isPathWithinHome, stripTrailingSlashes]);
 
+  // Reload directories when showHidden changes, but keep expanded state
   React.useEffect(() => {
     if (previousShowHidden.current !== showHidden) {
       previousShowHidden.current = showHidden;
-      setExpandedPaths(new Set());
+      // Silently reload without clearing state - loadInitialDirectories will be called
+      // via its dependency on loadDirectory which depends on showHidden
     }
   }, [showHidden]);
 
@@ -434,6 +438,8 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
     }
   }, [showHidden, effectiveRoot, stripTrailingSlashes, rootReady]);
 
+  const hasLoadedOnce = React.useRef(false);
+
   const loadInitialDirectories = React.useCallback(async () => {
     if (!rootReady || !effectiveRoot) {
       setIsLoading(true);
@@ -441,10 +447,14 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
       return;
     }
 
-    setIsLoading(true);
+    // Only show loading on initial load, not on refreshes (e.g., showHidden toggle)
+    if (!hasLoadedOnce.current) {
+      setIsLoading(true);
+    }
     try {
       const homeContents = await loadDirectory(effectiveRoot);
       setDirectories(homeContents);
+      hasLoadedOnce.current = true;
     } catch { /* ignored */ } finally {
       setIsLoading(false);
     }
@@ -616,16 +626,16 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
               e.stopPropagation();
               toggleExpanded(item);
             }}
-            className="p-0.5 hover:bg-accent rounded"
+            className={cn("hover:bg-accent rounded", isMobile ? "p-0.5" : "p-0.5")}
           >
             {isExpanded ? (
-              <RiArrowDownSLine className="h-3 w-3" />
+              <RiArrowDownSLine className={isMobile ? "h-3.5 w-3.5" : "h-3 w-3"} />
             ) : (
-              <RiArrowRightSLine className="h-3 w-3" />
+              <RiArrowRightSLine className={isMobile ? "h-3.5 w-3.5" : "h-3 w-3"} />
             )}
           </button>
         )}
-        {!hasChildren && <div className="w-4" />}
+        {!hasChildren && <div className={isMobile ? "w-4.5" : "w-4"} />}
 
         <button
           onClick={(e) => {
@@ -642,28 +652,22 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
             }
           }}
           className={cn(
-            'flex items-center gap-1.5 flex-1 text-left focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-primary/60 rounded',
+            'flex items-center flex-1 text-left focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-primary/60 rounded',
+            isMobile ? 'gap-1.5' : 'gap-1.5',
             isInlineVariant ? (isSelected ? 'text-primary' : 'text-foreground') : 'text-foreground'
           )}
         >
-          {isExpanded ? (
-            <RiFolder6Line
-              className={cn(
-                'h-3.5 w-3.5 text-muted-foreground',
-                isInlineVariant && isSelected && 'text-primary'
-              )}
-            />
-          ) : (
-            <RiFolder6Line
-              className={cn(
-                'h-3.5 w-3.5 text-muted-foreground',
-                isInlineVariant && isSelected && 'text-primary'
-              )}
-            />
-          )}
+          <RiFolder6Line
+            className={cn(
+              'text-muted-foreground flex-shrink-0',
+              isMobile ? 'h-4 w-4' : 'h-3.5 w-3.5',
+              isInlineVariant && isSelected && 'text-primary'
+            )}
+          />
           <span
             className={cn(
-              'typography-ui-label font-medium truncate',
+              'font-medium truncate',
+              isMobile ? 'typography-ui-label' : 'typography-ui-label',
               isInlineVariant && isSelected ? 'text-primary' : 'text-foreground'
             )}
           >
@@ -677,12 +681,13 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
             startCreatingDirectory(item);
           }}
           className={cn(
-            "p-1 hover:bg-accent rounded transition-opacity",
-            alwaysShowActions ? "opacity-70" : "opacity-0 group-hover:opacity-100"
+            "hover:bg-accent rounded transition-opacity",
+            isMobile ? "p-1.5" : "p-1",
+            alwaysShowActions ? "opacity-60" : "opacity-0 group-hover:opacity-100"
           )}
           title="Create new directory"
         >
-          <RiAddLine className="h-3 w-3 text-muted-foreground" />
+          <RiAddLine className={cn("text-muted-foreground", isMobile ? "h-3.5 w-3.5" : "h-3 w-3")} />
         </button>
 
         <button
@@ -691,15 +696,16 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
             togglePin(item.path);
           }}
           className={cn(
-            "p-1 hover:bg-accent rounded transition-opacity",
-            alwaysShowActions ? "opacity-70" : "opacity-0 group-hover:opacity-100"
+            "hover:bg-accent rounded transition-opacity",
+            isMobile ? "p-1.5" : "p-1",
+            alwaysShowActions ? "opacity-60" : "opacity-0 group-hover:opacity-100"
           )}
           title={isPinned ? "Unpin directory" : "Pin directory"}
         >
           {isPinned ? (
-            <RiPushpin2Line className="h-3 w-3 text-primary" />
+            <RiPushpin2Line className={cn("text-primary", isMobile ? "h-3.5 w-3.5" : "h-3 w-3")} />
           ) : (
-            <RiPushpinLine className="h-3 w-3 text-muted-foreground" />
+            <RiPushpinLine className={cn("text-muted-foreground", isMobile ? "h-3.5 w-3.5" : "h-3 w-3")} />
           )}
         </button>
       </>
@@ -710,10 +716,13 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
         <div key={item.path}>
           <div
             className={cn(
-              'group flex items-center gap-1 rounded px-2 py-1.5 text-left hover:bg-accent/40',
-              isSelected ? 'text-primary' : 'text-foreground'
+              'group flex items-center gap-1 rounded-lg mx-1 text-left transition-colors',
+              isMobile ? 'px-1.5 py-1' : 'px-2 py-1.5',
+              isSelected 
+                ? 'bg-primary/10 text-primary' 
+                : 'hover:bg-accent/50 text-foreground'
             )}
-            style={{ paddingLeft: `${level * 12 + 8}px` }}
+            style={{ paddingLeft: `${level * (isMobile ? 12 : 14) + (isMobile ? 4 : 6)}px` }}
           >
             {rowContent}
           </div>
@@ -721,8 +730,8 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
             <>
               {creatingInPath === item.path && (
                 <div
-                  className="flex items-center gap-1 px-2 py-1.5"
-                  style={{ paddingLeft: `${(level + 1) * 12 + 8}px` }}
+                  className="flex items-center gap-1 mx-1 px-2 py-1.5"
+                  style={{ paddingLeft: `${(level + 1) * 14 + 6}px` }}
                 >
                   <div className="w-4" />
                   <RiFolder6Line className="h-3.5 w-3.5 text-muted-foreground" />
@@ -872,7 +881,11 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
         <div
           key={path}
           className={cn(
-            'group flex items-center gap-2 px-2 py-1.5 hover:bg-accent/40'
+            'group flex items-center gap-2 mx-1 rounded-lg transition-colors',
+            isMobile ? 'px-1.5 py-1' : 'px-2 py-1.5',
+            isSelected 
+              ? 'bg-primary/10' 
+              : 'hover:bg-accent/50'
           )}
         >
           <button
@@ -884,36 +897,38 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
               }
             }}
             className={cn(
-              'flex flex-1 items-center gap-2 text-left focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-primary/60 rounded',
+              'flex flex-1 items-center gap-1.5 text-left focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-primary/60 rounded min-w-0',
               isSelected ? 'text-primary' : 'text-foreground'
             )}
           >
             <RiFolder6Line
               className={cn(
-                'h-3.5 w-3.5 text-muted-foreground',
-                isSelected && 'text-primary'
+                'flex-shrink-0',
+                isMobile ? 'h-4 w-4' : 'h-3.5 w-3.5',
+                isSelected ? 'text-primary' : 'text-muted-foreground'
               )}
             />
-            <div className="flex-1 min-w-0">
-              <div
-                className={cn(
-                  'typography-ui-label font-medium truncate',
-                  isSelected ? 'text-primary' : 'text-foreground'
-                )}
-              >
-                {name}
-              </div>
-              <div className="typography-meta text-muted-foreground truncate">
-                {formatPathForDisplay(path, homeDirectory)}
-              </div>
-            </div>
+            <span
+              className={cn(
+                'typography-ui-label font-medium truncate flex-shrink-0',
+                isSelected ? 'text-primary' : 'text-foreground'
+              )}
+            >
+              {name}
+            </span>
+            <span className="typography-meta text-muted-foreground/60 truncate">
+              {formatPathForDisplay(path, homeDirectory)}
+            </span>
           </button>
           <button
             onClick={() => togglePin(path)}
-            className="p-1 opacity-0 group-hover:opacity-100 hover:bg-accent rounded transition-opacity"
+            className={cn(
+              "hover:bg-accent rounded-md transition-opacity",
+              isMobile ? "p-1.5 opacity-60" : "p-1 opacity-0 group-hover:opacity-100"
+            )}
             title="Unpin directory"
           >
-            <RiPushpin2Line className="h-3 w-3 text-primary" />
+            <RiPushpin2Line className={cn("text-primary", isMobile ? "h-3.5 w-3.5" : "h-3.5 w-3.5")} />
           </button>
         </div>
       );
@@ -969,29 +984,33 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
               <button
                 type="button"
                 onClick={() => setIsPinnedExpanded(prev => !prev)}
-                className="flex w-full items-center gap-1.5 px-2 py-1.5 typography-meta font-semibold text-muted-foreground hover:bg-accent/30 rounded transition-colors"
+                className={cn(
+                  "flex w-full items-center gap-1.5 typography-meta font-medium text-muted-foreground/80 hover:bg-accent/30 rounded transition-colors uppercase tracking-wide",
+                  isMobile ? "px-1.5 py-1" : "px-2 py-1.5"
+                )}
               >
                 {isPinnedExpanded ? (
-                  <RiArrowDownSLine className="h-3.5 w-3.5" />
+                  <RiArrowDownSLine className={isMobile ? "h-3.5 w-3.5" : "h-3 w-3"} />
                 ) : (
-                  <RiArrowRightSLine className="h-3.5 w-3.5" />
+                  <RiArrowRightSLine className={isMobile ? "h-3.5 w-3.5" : "h-3 w-3"} />
                 )}
-                <RiStarLine className="h-3.5 w-3.5" />
                 <span>Pinned</span>
-                <span className="ml-auto typography-micro text-muted-foreground/70">
+                <span className="ml-auto typography-micro text-muted-foreground/60 normal-case tracking-normal">
                   {pinnedDirectories.length}
                 </span>
               </button>
               {isPinnedExpanded && pinnedDirectories.map(({ name, path }) => renderPinnedRow(name, path))}
               {variant === 'dropdown' && <DropdownMenuSeparator />}
               {variant === 'inline' && isPinnedExpanded && (
-                <div className="mx-2 my-1.5 border-t border-border/30" />
+                <div className="mx-3 my-2 border-t border-border/40" />
               )}
             </>
           )}
 
-          <div className="px-2 py-1.5 typography-meta font-semibold text-muted-foreground flex items-center gap-1.5">
-            <RiFolder6Line className="h-3.5 w-3.5" />
+          <div className={cn(
+            "typography-meta font-medium text-muted-foreground/80 flex items-center gap-1.5 uppercase tracking-wide",
+            isMobile ? "px-1.5 py-1" : "px-2 py-1.5"
+          )}>
             Browse
           </div>
 
@@ -1015,8 +1034,8 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
 
   if (variant === 'inline') {
     return (
-      <div className={cn('overflow-hidden rounded-xl border border-border/40 bg-sidebar/70', className)}>
-        <ScrollableOverlay outerClassName="max-h-full" className="w-full">
+      <div className={cn('overflow-hidden flex flex-col', className)}>
+        <ScrollableOverlay outerClassName="flex-1 min-h-0" className="w-full py-1">
           {directoryContent}
         </ScrollableOverlay>
       </div>