diff --git a/docs/TYPOGRAPHY_SYSTEM.md b/docs/TYPOGRAPHY_SYSTEM.md
new file mode 100644
index 0000000..750cb4d
--- /dev/null
+++ b/docs/TYPOGRAPHY_SYSTEM.md
@@ -0,0 +1,196 @@
+# Respira Typography System
+
+## Current Problems
+❌ 12 different font sizes including arbitrary values (7px, 9px, 10px, 11px, 13px)
+❌ Inconsistent hierarchy - unclear when to use which size
+❌ Poor accessibility - text as small as 7px
+❌ Responsive scaling is inconsistent
+
+## New Typography System (Tailwind Classes Only)
+
+### **5-Level Hierarchy**
+
+```
+Level        Desktop (lg:)     Mobile/Tablet      Weight           Usage
+─────────────────────────────────────────────────────────────────────────────────
+Display      text-xl (20px)    text-lg (18px)     font-bold        App title, page headers
+Heading      text-lg (18px)    text-base (16px)   font-semibold    Section titles, dialogs
+Subheading   text-sm (14px)    text-sm (14px)     font-semibold    Card titles
+Body         text-sm (14px)    text-sm (14px)     font-medium      Content, buttons
+Label        text-xs (12px)    text-xs (12px)     font-medium      Metadata, helpers, tags
+```
+
+**Key Decisions:**
+- ✅ **No custom pixel sizes** - only Tailwind standards
+- ✅ **Minimum 12px** - text-xs (12px) is the smallest size (accessible)
+- ✅ **Body = text-sm** - 14px is optimal for reading and touch targets
+- ✅ **Consistent responsive** - most don't need breakpoints except Display/Heading
+
+### **Font Weight System**
+```
+Display:     font-bold (700)      - Maximum emphasis
+Heading:     font-semibold (600)  - Section headers
+Subheading:  font-semibold (600)  - Card/component titles
+Body:        font-medium (500)    - Interactive elements (buttons)
+Body:        font-normal (400)    - Static text
+Label:       font-medium (500)    - Small but important
+Label:       font-normal (400)    - Decorative/secondary
+```
+
+---
+
+## Component Mapping
+
+### **App.tsx**
+| Element | Old | New |
+|---------|-----|-----|
+| "Respira" title | text-lg | text-xl lg:text-xl (Display) |
+| Serial number | text-sm | text-xs (Label) |
+| "Not Connected" | text-sm | text-xs (Label) |
+| Disconnect button | text-xs | text-sm (Body) |
+| Status badge | text-xs | text-xs (Label) |
+| Error message | text-sm | text-sm (Body) |
+| "Pattern Preview" h2 | text-xl | text-lg lg:text-lg (Heading) |
+| Empty state title | text-xl | text-lg (Heading) |
+| Empty state body | text-sm | text-sm (Body) |
+| Feature indicators | text-xs | text-xs (Label) |
+
+### **FileUpload.tsx**
+| Element | Old | New |
+|---------|-----|-----|
+| "Pattern File" title | text-sm | text-sm font-semibold (Subheading) |
+| Filename | text-xs | text-xs (Label) |
+| Stats labels | text-xs | text-xs (Label) |
+| Button text | text-xs | text-sm (Body) |
+| "Colors:" label | text-xs | text-xs (Label) |
+| Error messages | text-xs | text-sm (Body) |
+| Upload progress | text-xs | text-xs (Label) |
+| **Remove:** text-[7px] badge → text-xs |
+
+### **PatternCanvas.tsx**
+| Element | Old | New |
+|---------|-----|-----|
+| "Pattern Preview" | text-sm | text-sm font-semibold (Subheading) |
+| Dimensions | text-xs | text-xs (Label) |
+| "Colors" header | text-[10px] sm:text-xs | text-xs (Label) |
+| Color labels | text-[10px] sm:text-[11px] | text-xs (Label) |
+| Thread metadata | text-[9px] | text-xs (Label) |
+| "Pattern Position" | text-[10px] sm:text-[11px] | text-xs (Label) |
+| "LOCKED" badge | text-[9px] sm:text-[10px] | text-xs (Label) |
+| Coordinates (X/Y) | text-[11px] sm:text-[13px] | text-sm (Body) |
+| Help text | text-[9px] sm:text-[10px] | text-xs (Label) |
+| Zoom % | text-[11px] sm:text-[13px] | text-sm (Body) |
+
+### **ProgressMonitor.tsx**
+| Element | Old | New |
+|---------|-----|-----|
+| "Progress" title | text-sm | text-sm font-semibold (Subheading) |
+| Block labels | text-xs | text-xs (Label) |
+| Stitch counts | text-xs | text-xs (Label) |
+| Button text | text-xs | text-sm (Body) |
+
+### **WorkflowStepper.tsx**
+| Element | Old | New |
+|---------|-----|-----|
+| Step numbers | text-[10px] lg:text-xs | text-xs (Label) |
+| Step labels | text-[10px] lg:text-xs | text-xs (Label) |
+
+### **NextStepGuide.tsx**
+| Element | Old | New |
+|---------|-----|-----|
+| Step titles | text-lg | text-lg sm:text-base (Heading) |
+| Instructions | text-sm | text-sm (Body) |
+| Error codes | text-xs | text-xs font-mono (Label) |
+
+### **PatternSummaryCard.tsx**
+| Element | Old | New |
+|---------|-----|-----|
+| "Active Pattern" | text-sm | text-sm font-semibold (Subheading) |
+| Filename | text-xs | text-xs (Label) |
+| Stats | text-xs | text-xs (Label) |
+| Button text | text-xs | text-sm (Body) |
+| **Remove:** text-[7px] badge → text-xs |
+
+### **MachineConnection.tsx**
+| Element | Old | New |
+|---------|-----|-----|
+| Card titles | text-sm | text-sm font-semibold (Subheading) |
+| Helper text | text-xs | text-xs (Label) |
+| Button text | text-xs | text-sm (Body) |
+| Error details | text-[10px] | text-xs (Label) |
+
+### **ConfirmDialog.tsx**
+| Element | Old | New |
+|---------|-----|-----|
+| Dialog title | text-xl | text-lg (Heading) |
+| Button text | text-sm | text-sm (Body) |
+
+### **BluetoothDevicePicker.tsx**
+| Element | Old | New |
+|---------|-----|-----|
+| Dialog title | text-xl | text-lg (Heading) |
+| Device names | text-sm | text-sm (Body) |
+| Device IDs | text-xs | text-xs (Label) |
+| Button text | text-sm | text-sm (Body) |
+
+---
+
+## Benefits
+
+✅ **5 sizes only** - Down from 12 (much cleaner)
+✅ **Standard Tailwind** - No custom pixel values
+✅ **Accessible** - Minimum 12px (text-xs)
+✅ **Touch-friendly** - Buttons use text-sm (14px)
+✅ **Clear hierarchy** - Semantic naming (Display → Heading → Subheading → Body → Label)
+✅ **Easy to maintain** - Standard classes everyone knows
+✅ **Consistent responsive** - Only Display and Heading scale down
+
+---
+
+## Implementation Rules
+
+### **When to use each level:**
+
+**Display (text-xl/text-lg)** - Only for:
+- Main app title ("Respira")
+- Top-level page headers
+
+**Heading (text-lg/text-base)** - For:
+- Section headers ("Pattern Preview", "Step 1: Connect")
+- Dialog titles
+- Empty state titles
+- Major workflow steps
+
+**Subheading (text-sm semibold)** - For:
+- Card component titles ("Pattern File", "Active Pattern", "Progress")
+- Sub-section headers within cards
+
+**Body (text-sm)** - For:
+- Primary readable content
+- Button labels (interactive!)
+- Error messages
+- Instructions and descriptions
+- Input fields
+
+**Label (text-xs)** - For:
+- Metadata (filenames, dimensions, stitch counts)
+- Field labels ("Size:", "Stitches:", "Colors:")
+- Status badges
+- Helper text
+- Timestamps
+- Tags and small indicators
+
+---
+
+## Responsive Strategy
+
+**Most text doesn't need responsive variants:**
+- Body (text-sm) stays the same
+- Label (text-xs) stays the same
+- Subheading (text-sm) stays the same
+
+**Only top-level headers scale:**
+- Display: `text-lg lg:text-xl` (18px → 20px)
+- Heading: `text-base lg:text-lg` (16px → 18px)
+
+This creates a subtle hierarchy shift on desktop without fragmenting the system.
diff --git a/src/App.tsx b/src/App.tsx
index 6b8c206..22878e4 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -109,18 +109,18 @@ function App() {
 
   return (
     <div className="min-h-screen flex flex-col bg-gray-50 dark:bg-gray-900">
-      <header className="bg-gradient-to-r from-blue-600 via-blue-700 to-blue-800 dark:from-blue-700 dark:via-blue-800 dark:to-blue-900 px-8 py-3 shadow-lg border-b-2 border-blue-900/20 dark:border-blue-800/30">
-        <div className="max-w-[1600px] mx-auto grid grid-cols-[300px_1fr] gap-8 items-center">
-          {/* Machine Connection Status - Fixed width column */}
-          <div className="flex items-center gap-3 w-[300px]">
+      <header className="bg-gradient-to-r from-blue-600 via-blue-700 to-blue-800 dark:from-blue-700 dark:via-blue-800 dark:to-blue-900 px-4 sm:px-6 lg:px-8 py-3 shadow-lg border-b-2 border-blue-900/20 dark:border-blue-800/30">
+        <div className="max-w-[1600px] mx-auto grid grid-cols-1 lg:grid-cols-[280px_1fr] gap-4 lg:gap-8 items-center">
+          {/* Machine Connection Status - Responsive width column */}
+          <div className="flex items-center gap-3 w-full lg:w-[280px]">
             <div className="w-2.5 h-2.5 bg-green-400 rounded-full animate-pulse shadow-lg shadow-green-400/50" style={{ visibility: machine.isConnected ? 'visible' : 'hidden' }}></div>
             <div className="w-2.5 h-2.5 bg-gray-400 rounded-full -ml-2.5" style={{ visibility: !machine.isConnected ? 'visible' : 'hidden' }}></div>
             <div className="flex-1 min-w-0">
               <div className="flex items-center gap-2">
-                <h1 className="text-lg font-bold text-white leading-tight">Respira</h1>
+                <h1 className="text-lg lg:text-xl font-bold text-white leading-tight">Respira</h1>
                 {machine.isConnected && machine.machineInfo?.serialNumber && (
                   <span
-                    className="text-sm text-blue-200 cursor-help"
+                    className="text-xs text-blue-200 cursor-help"
                     title={`Serial: ${machine.machineInfo.serialNumber}${
                       machine.machineInfo.macAddress
                         ? `\nMAC: ${machine.machineInfo.macAddress}`
@@ -147,20 +147,20 @@ function App() {
                   <>
                     <button
                       onClick={machine.disconnect}
-                      className="inline-flex items-center gap-1.5 px-2.5 py-1 rounded text-xs font-medium bg-white/10 hover:bg-red-600 text-blue-100 hover:text-white border border-white/20 hover:border-red-600 cursor-pointer transition-all flex-shrink-0"
+                      className="inline-flex items-center gap-1.5 px-2.5 py-1.5 sm:py-1 rounded text-sm font-medium bg-white/10 hover:bg-red-600 text-blue-100 hover:text-white border border-white/20 hover:border-red-600 cursor-pointer transition-all flex-shrink-0"
                       title="Disconnect from machine"
                       aria-label="Disconnect from machine"
                     >
                       <XMarkIcon className="w-3 h-3" />
                       Disconnect
                     </button>
-                    <span className="inline-flex items-center gap-1.5 px-2.5 py-1 rounded text-xs font-semibold bg-white/20 text-white border border-white/30 flex-shrink-0">
+                    <span className="inline-flex items-center gap-1.5 px-2.5 py-1.5 sm:py-1 rounded text-sm font-semibold bg-white/20 text-white border border-white/30 flex-shrink-0">
                       <StatusIcon className="w-3 h-3" />
                       {machine.machineStatusName}
                     </span>
                   </>
                 ) : (
-                  <p className="text-sm text-blue-200">Not Connected</p>
+                  <p className="text-xs text-blue-200">Not Connected</p>
                 )}
               </div>
             </div>
@@ -178,7 +178,7 @@ function App() {
         </div>
       </header>
 
-      <div className="flex-1 p-6 max-w-[1600px] w-full mx-auto">
+      <div className="flex-1 p-4 sm:p-5 lg:p-6 max-w-[1600px] w-full mx-auto">
         {/* Global errors */}
         {machine.error && (
           <div className={`px-6 py-4 rounded-lg border-l-4 mb-6 shadow-md hover:shadow-lg transition-shadow animate-fadeIn ${
@@ -225,9 +225,9 @@ function App() {
           </div>
         )}
 
-        <div className="grid grid-cols-1 lg:grid-cols-[400px_1fr] gap-6">
+        <div className="grid grid-cols-1 lg:grid-cols-[400px_1fr] gap-4 md:gap-5 lg:gap-6">
           {/* Left Column - Controls */}
-          <div className="flex flex-col gap-6">
+          <div className="flex flex-col gap-4 md:gap-5 lg:gap-6">
             {/* Connect Button - Show when disconnected */}
             {!machine.isConnected && (
               <div className="bg-white dark:bg-gray-800 p-4 rounded-lg shadow-md border-l-4 border-gray-400 dark:border-gray-600">
@@ -244,7 +244,7 @@ function App() {
                 </div>
                 <button
                   onClick={machine.connect}
-                  className="w-full flex items-center justify-center gap-2 px-3 py-2 bg-blue-600 dark:bg-blue-700 text-white rounded font-semibold text-xs hover:bg-blue-700 dark:hover:bg-blue-600 active:bg-blue-800 dark:active:bg-blue-500 transition-colors cursor-pointer"
+                  className="w-full flex items-center justify-center gap-2 px-3 py-2.5 sm:py-2 bg-blue-600 dark:bg-blue-700 text-white rounded font-semibold text-sm hover:bg-blue-700 dark:hover:bg-blue-600 active:bg-blue-800 dark:active:bg-blue-500 transition-colors cursor-pointer"
                 >
                   Connect to Machine
                 </button>
@@ -299,7 +299,7 @@ function App() {
           </div>
 
           {/* Right Column - Pattern Preview */}
-          <div className="flex flex-col gap-6">
+          <div className="flex flex-col gap-4 md:gap-5 lg:gap-6">
             {pesData ? (
               <PatternCanvas
                 pesData={pesData}
@@ -312,8 +312,8 @@ function App() {
               />
             ) : (
               <div className="bg-white dark:bg-gray-800 p-6 rounded-lg shadow-md animate-fadeIn">
-                <h2 className="text-xl font-semibold mb-4 pb-2 border-b-2 border-gray-300 dark:border-gray-600 dark:text-white">Pattern Preview</h2>
-                <div className="flex items-center justify-center h-[600px] bg-gradient-to-br from-gray-50 to-gray-100 dark:from-gray-700 dark:to-gray-800 rounded-lg border-2 border-dashed border-gray-300 dark:border-gray-600 relative overflow-hidden">
+                <h2 className="text-base lg:text-lg font-semibold mb-4 pb-2 border-b-2 border-gray-300 dark:border-gray-600 dark:text-white">Pattern Preview</h2>
+                <div className="flex items-center justify-center h-[400px] sm:h-[500px] lg:h-[600px] max-h-[70vh] bg-gradient-to-br from-gray-50 to-gray-100 dark:from-gray-700 dark:to-gray-800 rounded-lg border-2 border-dashed border-gray-300 dark:border-gray-600 relative overflow-hidden">
                   {/* Decorative background pattern */}
                   <div className="absolute inset-0 opacity-5 dark:opacity-10">
                     <div className="absolute top-10 left-10 w-32 h-32 border-4 border-gray-400 dark:border-gray-500 rounded-full"></div>
@@ -332,7 +332,7 @@ function App() {
                         </svg>
                       </div>
                     </div>
-                    <h3 className="text-gray-700 dark:text-gray-200 text-xl font-semibold mb-2">No Pattern Loaded</h3>
+                    <h3 className="text-gray-700 dark:text-gray-200 text-base lg:text-lg font-semibold mb-2">No Pattern Loaded</h3>
                     <p className="text-gray-500 dark:text-gray-400 text-sm mb-4 max-w-sm mx-auto">
                       Connect to your machine and choose a PES embroidery file to see your design preview
                     </p>
diff --git a/src/components/BluetoothDevicePicker.tsx b/src/components/BluetoothDevicePicker.tsx
index 2dbeee8..85a45c9 100644
--- a/src/components/BluetoothDevicePicker.tsx
+++ b/src/components/BluetoothDevicePicker.tsx
@@ -66,7 +66,7 @@ export function BluetoothDevicePicker() {
         aria-describedby="bluetooth-picker-message"
       >
         <div className="p-6 border-b border-gray-300 dark:border-gray-600">
-          <h3 id="bluetooth-picker-title" className="m-0 text-xl font-semibold dark:text-white">
+          <h3 id="bluetooth-picker-title" className="m-0 text-base lg:text-lg font-semibold dark:text-white">
             Select Bluetooth Device
           </h3>
         </div>
diff --git a/src/components/ConfirmDialog.tsx b/src/components/ConfirmDialog.tsx
index 4035acd..1c03175 100644
--- a/src/components/ConfirmDialog.tsx
+++ b/src/components/ConfirmDialog.tsx
@@ -47,7 +47,7 @@ export function ConfirmDialog({
         aria-describedby="dialog-message"
       >
         <div className="p-6 border-b border-gray-300 dark:border-gray-600">
-          <h3 id="dialog-title" className="m-0 text-xl font-semibold dark:text-white">{title}</h3>
+          <h3 id="dialog-title" className="m-0 text-base lg:text-lg font-semibold dark:text-white">{title}</h3>
         </div>
         <div className="p-6">
           <p id="dialog-message" className="m-0 leading-relaxed text-gray-900 dark:text-gray-100">{message}</p>
diff --git a/src/components/FileUpload.tsx b/src/components/FileUpload.tsx
index e2f7500..505366f 100644
--- a/src/components/FileUpload.tsx
+++ b/src/components/FileUpload.tsx
@@ -227,7 +227,7 @@ export function FileUpload({
                 );
               })}
               {pesData.uniqueColors.length > 8 && (
-                <div className="w-3 h-3 rounded-full bg-gray-300 dark:bg-gray-600 border border-gray-400 dark:border-gray-500 flex items-center justify-center text-[7px] font-bold text-gray-600 dark:text-gray-300">
+                <div className="w-3 h-3 rounded-full bg-gray-300 dark:bg-gray-600 border border-gray-400 dark:border-gray-500 flex items-center justify-center text-xs font-bold text-gray-600 dark:text-gray-300 leading-none">
                   +{pesData.uniqueColors.length - 8}
                 </div>
               )}
@@ -248,7 +248,7 @@ export function FileUpload({
         <label
           htmlFor={fileService.hasNativeDialogs() ? undefined : "file-input"}
           onClick={fileService.hasNativeDialogs() ? () => handleFileChange() : undefined}
-          className={`flex-[2] flex items-center justify-center gap-2 px-3 py-2 rounded font-semibold text-xs transition-all ${
+          className={`flex-[2] flex items-center justify-center gap-2 px-3 py-2.5 sm:py-2 rounded font-semibold text-sm transition-all ${
             !pyodideReady || isLoading || patternUploaded || isUploading
               ? 'opacity-50 cursor-not-allowed bg-gray-400 dark:bg-gray-600 text-white'
               : 'cursor-pointer bg-gray-600 dark:bg-gray-700 text-white hover:bg-gray-700 dark:hover:bg-gray-600'
@@ -287,7 +287,7 @@ export function FileUpload({
           <button
             onClick={handleUpload}
             disabled={!isConnected || isUploading || !boundsCheck.fits}
-            className="flex-1 px-3 py-2 bg-blue-600 dark:bg-blue-700 text-white rounded font-semibold text-xs hover:bg-blue-700 dark:hover:bg-blue-600 active:bg-blue-800 dark:active:bg-blue-500 transition-colors cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed"
+            className="flex-1 px-3 py-2.5 sm:py-2 bg-blue-600 dark:bg-blue-700 text-white rounded font-semibold text-sm hover:bg-blue-700 dark:hover:bg-blue-600 active:bg-blue-800 dark:active:bg-blue-500 transition-colors cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed"
             aria-label={isUploading ? `Uploading pattern: ${uploadProgress.toFixed(0)}% complete` : boundsCheck.error || 'Upload pattern to machine'}
           >
             {isUploading ? (
@@ -314,13 +314,13 @@ export function FileUpload({
         marginTop: (pesData && (boundsCheck.error || !canUploadPattern(machineStatus))) ? '12px' : '0px'
       }}>
         {pesData && !canUploadPattern(machineStatus) && (
-          <div className="bg-yellow-100 dark:bg-yellow-900/20 text-yellow-800 dark:text-yellow-200 px-3 py-2 rounded border border-yellow-200 dark:border-yellow-800 text-xs">
+          <div className="bg-yellow-100 dark:bg-yellow-900/20 text-yellow-800 dark:text-yellow-200 px-3 py-2 rounded border border-yellow-200 dark:border-yellow-800 text-sm">
             Cannot upload while {getMachineStateCategory(machineStatus)}
           </div>
         )}
 
         {pesData && boundsCheck.error && (
-          <div className="bg-red-100 dark:bg-red-900/20 text-red-800 dark:text-red-200 px-3 py-2 rounded border border-red-200 dark:border-red-800 text-xs">
+          <div className="bg-red-100 dark:bg-red-900/20 text-red-800 dark:text-red-200 px-3 py-2 rounded border border-red-200 dark:border-red-800 text-sm">
             <strong>Pattern too large:</strong> {boundsCheck.error}
           </div>
         )}
diff --git a/src/components/MachineConnection.tsx b/src/components/MachineConnection.tsx
index e0f80c2..af8cb5f 100644
--- a/src/components/MachineConnection.tsx
+++ b/src/components/MachineConnection.tsx
@@ -124,7 +124,7 @@ export function MachineConnection({
                   <span className="text-red-600 dark:text-red-400 flex-shrink-0">⚠️</span>
                   <div className="flex-1 min-w-0">
                     <div className="font-semibold text-red-900 dark:text-red-200 text-xs mb-1">{errorInfo.title}</div>
-                    <div className="text-[10px] text-red-700 dark:text-red-300 font-mono">
+                    <div className="text-xs text-red-700 dark:text-red-300 font-mono">
                       Error Code: 0x{machineError.toString(16).toUpperCase().padStart(2, '0')}
                     </div>
                   </div>
diff --git a/src/components/PatternCanvas.tsx b/src/components/PatternCanvas.tsx
index c590b8a..0eea74b 100644
--- a/src/components/PatternCanvas.tsx
+++ b/src/components/PatternCanvas.tsx
@@ -203,7 +203,7 @@ export function PatternCanvas({ pesData, sewingProgress, machineInfo, initialPat
           )}
         </div>
       </div>
-      <div className="relative w-full h-[600px] border border-gray-300 dark:border-gray-600 rounded bg-gray-50 dark:bg-gray-900 overflow-hidden" ref={containerRef}>
+      <div className="relative w-full h-[400px] sm:h-[500px] lg:h-[600px] max-h-[70vh] border border-gray-300 dark:border-gray-600 rounded bg-gray-50 dark:bg-gray-900 overflow-hidden" ref={containerRef}>
         {containerSize.width > 0 && (
           <Stage
             width={containerSize.width}
@@ -291,7 +291,7 @@ export function PatternCanvas({ pesData, sewingProgress, machineInfo, initialPat
 
         {/* Placeholder overlay when no pattern is loaded */}
         {!pesData && (
-          <div className="flex items-center justify-center h-[600px] text-gray-600 dark:text-gray-400 italic">
+          <div className="flex items-center justify-center h-[400px] sm:h-[500px] lg:h-[600px] text-gray-600 dark:text-gray-400 italic">
             Load a PES file to preview the pattern
           </div>
         )}
@@ -300,8 +300,8 @@ export function PatternCanvas({ pesData, sewingProgress, machineInfo, initialPat
         {pesData && (
           <>
             {/* Thread Legend Overlay */}
-            <div className="absolute top-2.5 left-2.5 bg-white/95 dark:bg-gray-800/95 backdrop-blur-sm p-2.5 rounded-lg shadow-lg z-10 max-w-[200px]">
-              <h4 className="m-0 mb-2 text-xs font-semibold text-gray-900 dark:text-gray-100 border-b border-gray-300 dark:border-gray-600 pb-1.5">Colors</h4>
+            <div className="absolute top-2 sm:top-2.5 left-2 sm:left-2.5 bg-white/95 dark:bg-gray-800/95 backdrop-blur-sm p-2 sm:p-2.5 rounded-lg shadow-lg z-10 max-w-[150px] sm:max-w-[180px] lg:max-w-[200px]">
+              <h4 className="m-0 mb-1.5 sm:mb-2 text-xs font-semibold text-gray-900 dark:text-gray-100 border-b border-gray-300 dark:border-gray-600 pb-1 sm:pb-1.5">Colors</h4>
               {pesData.uniqueColors.map((color, idx) => {
                 // Primary metadata: brand and catalog number
                 const primaryMetadata = [
@@ -316,17 +316,17 @@ export function PatternCanvas({ pesData, sewingProgress, machineInfo, initialPat
                 ].filter(Boolean).join(" ");
 
                 return (
-                  <div key={idx} className="flex items-start gap-2 mb-1.5 last:mb-0">
+                  <div key={idx} className="flex items-start gap-1.5 sm:gap-2 mb-1 sm:mb-1.5 last:mb-0">
                     <div
-                      className="w-4 h-4 rounded border border-black dark:border-gray-300 flex-shrink-0 mt-0.5"
+                      className="w-3 h-3 sm:w-4 sm:h-4 rounded border border-black dark:border-gray-300 flex-shrink-0 mt-0.5"
                       style={{ backgroundColor: color.hex }}
                     />
                     <div className="flex-1 min-w-0">
-                      <div className="text-[11px] font-semibold text-gray-900 dark:text-gray-100">
+                      <div className="text-xs font-semibold text-gray-900 dark:text-gray-100">
                         Color {idx + 1}
                       </div>
                       {(primaryMetadata || secondaryMetadata) && (
-                        <div className="text-[9px] text-gray-600 dark:text-gray-400 leading-tight mt-0.5 break-words">
+                        <div className="text-xs text-gray-600 dark:text-gray-400 leading-tight mt-0.5 break-words">
                           {primaryMetadata}
                           {primaryMetadata && secondaryMetadata && <span className="mx-1">•</span>}
                           {secondaryMetadata}
@@ -339,37 +339,37 @@ export function PatternCanvas({ pesData, sewingProgress, machineInfo, initialPat
             </div>
 
             {/* Pattern Offset Indicator */}
-            <div className={`absolute bottom-20 right-5 backdrop-blur-sm p-2.5 px-3.5 rounded-lg shadow-lg z-[11] min-w-[180px] transition-colors ${
+            <div className={`absolute bottom-16 sm:bottom-20 right-2 sm:right-5 backdrop-blur-sm p-2 sm:p-2.5 px-2.5 sm:px-3.5 rounded-lg shadow-lg z-[11] min-w-[160px] sm:min-w-[180px] transition-colors ${
               patternUploaded ? 'bg-amber-50/95 dark:bg-amber-900/80 border-2 border-amber-300 dark:border-amber-600' : 'bg-white/95 dark:bg-gray-800/95'
             }`}>
               <div className="flex items-center justify-between mb-1">
-                <div className="text-[11px] font-semibold text-gray-600 dark:text-gray-400 uppercase tracking-wider">Pattern Position:</div>
+                <div className="text-xs font-semibold text-gray-600 dark:text-gray-400 uppercase tracking-wider">Pattern Position:</div>
                 {patternUploaded && (
                   <div className="flex items-center gap-1 text-amber-600 dark:text-amber-400">
-                    <LockClosedIcon className="w-3.5 h-3.5" />
-                    <span className="text-[10px] font-bold">LOCKED</span>
+                    <LockClosedIcon className="w-3 h-3 sm:w-3.5 sm:h-3.5" />
+                    <span className="text-xs font-bold">LOCKED</span>
                   </div>
                 )}
               </div>
-              <div className="text-[13px] font-semibold text-blue-600 dark:text-blue-400 mb-1">
+              <div className="text-sm font-semibold text-blue-600 dark:text-blue-400 mb-1">
                 X: {(patternOffset.x / 10).toFixed(1)}mm, Y: {(patternOffset.y / 10).toFixed(1)}mm
               </div>
-              <div className="text-[10px] text-gray-600 dark:text-gray-400 italic">
+              <div className="text-xs text-gray-600 dark:text-gray-400 italic">
                 {patternUploaded ? 'Pattern locked • Drag background to pan' : 'Drag pattern to move • Drag background to pan'}
               </div>
             </div>
 
             {/* Zoom Controls Overlay */}
-            <div className="absolute bottom-5 right-5 flex gap-2 items-center bg-white/95 dark:bg-gray-800/95 backdrop-blur-sm px-3 py-2 rounded-lg shadow-lg z-10">
-              <button className="w-8 h-8 p-1 border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 rounded cursor-pointer transition-all flex items-center justify-center hover:bg-blue-600 hover:text-white hover:border-blue-600 dark:hover:border-blue-600 hover:shadow-md hover:shadow-blue-600/30 disabled:opacity-50 disabled:cursor-not-allowed" onClick={handleZoomIn} title="Zoom In">
-                <PlusIcon className="w-5 h-5 dark:text-gray-200" />
+            <div className="absolute bottom-2 sm:bottom-5 right-2 sm:right-5 flex gap-1.5 sm:gap-2 items-center bg-white/95 dark:bg-gray-800/95 backdrop-blur-sm px-2 sm:px-3 py-1.5 sm:py-2 rounded-lg shadow-lg z-10">
+              <button className="w-7 h-7 sm:w-8 sm:h-8 p-1 border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 rounded cursor-pointer transition-all flex items-center justify-center hover:bg-blue-600 hover:text-white hover:border-blue-600 dark:hover:border-blue-600 hover:shadow-md hover:shadow-blue-600/30 disabled:opacity-50 disabled:cursor-not-allowed" onClick={handleZoomIn} title="Zoom In">
+                <PlusIcon className="w-4 h-4 sm:w-5 sm:h-5 dark:text-gray-200" />
               </button>
-              <span className="min-w-[50px] text-center text-[13px] font-semibold text-gray-900 dark:text-gray-100 select-none">{Math.round(stageScale * 100)}%</span>
-              <button className="w-8 h-8 p-1 border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 rounded cursor-pointer transition-all flex items-center justify-center hover:bg-blue-600 hover:text-white hover:border-blue-600 dark:hover:border-blue-600 hover:shadow-md hover:shadow-blue-600/30 disabled:opacity-50 disabled:cursor-not-allowed" onClick={handleZoomOut} title="Zoom Out">
-                <MinusIcon className="w-5 h-5 dark:text-gray-200" />
+              <span className="min-w-[40px] sm:min-w-[50px] text-center text-sm font-semibold text-gray-900 dark:text-gray-100 select-none">{Math.round(stageScale * 100)}%</span>
+              <button className="w-7 h-7 sm:w-8 sm:h-8 p-1 border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 rounded cursor-pointer transition-all flex items-center justify-center hover:bg-blue-600 hover:text-white hover:border-blue-600 dark:hover:border-blue-600 hover:shadow-md hover:shadow-blue-600/30 disabled:opacity-50 disabled:cursor-not-allowed" onClick={handleZoomOut} title="Zoom Out">
+                <MinusIcon className="w-4 h-4 sm:w-5 sm:h-5 dark:text-gray-200" />
               </button>
-              <button className="w-8 h-8 p-1 border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 rounded cursor-pointer transition-all flex items-center justify-center hover:bg-blue-600 hover:text-white hover:border-blue-600 dark:hover:border-blue-600 hover:shadow-md hover:shadow-blue-600/30 disabled:opacity-50 disabled:cursor-not-allowed ml-1" onClick={handleZoomReset} title="Reset Zoom">
-                <ArrowPathIcon className="w-5 h-5 dark:text-gray-200" />
+              <button className="w-7 h-7 sm:w-8 sm:h-8 p-1 border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 rounded cursor-pointer transition-all flex items-center justify-center hover:bg-blue-600 hover:text-white hover:border-blue-600 dark:hover:border-blue-600 hover:shadow-md hover:shadow-blue-600/30 disabled:opacity-50 disabled:cursor-not-allowed ml-1" onClick={handleZoomReset} title="Reset Zoom">
+                <ArrowPathIcon className="w-4 h-4 sm:w-5 sm:h-5 dark:text-gray-200" />
               </button>
             </div>
           </>
diff --git a/src/components/PatternSummaryCard.tsx b/src/components/PatternSummaryCard.tsx
index aa3084d..e42e5e7 100644
--- a/src/components/PatternSummaryCard.tsx
+++ b/src/components/PatternSummaryCard.tsx
@@ -84,7 +84,7 @@ export function PatternSummaryCard({
             );
           })}
           {pesData.uniqueColors.length > 8 && (
-            <div className="w-3 h-3 rounded-full bg-gray-300 dark:bg-gray-600 border border-gray-400 dark:border-gray-500 flex items-center justify-center text-[7px] font-bold text-gray-600 dark:text-gray-300">
+            <div className="w-3 h-3 rounded-full bg-gray-300 dark:bg-gray-600 border border-gray-400 dark:border-gray-500 flex items-center justify-center text-xs font-bold text-gray-600 dark:text-gray-300 leading-none">
               +{pesData.uniqueColors.length - 8}
             </div>
           )}
@@ -95,7 +95,7 @@ export function PatternSummaryCard({
         <button
           onClick={onDeletePattern}
           disabled={isDeleting}
-          className="w-full flex items-center justify-center gap-2 px-3 py-2 bg-red-50 dark:bg-red-900/20 text-red-700 dark:text-red-300 rounded border border-red-300 dark:border-red-700 hover:bg-red-100 dark:hover:bg-red-900/30 text-xs font-medium transition-colors disabled:opacity-50 disabled:cursor-not-allowed cursor-pointer"
+          className="w-full flex items-center justify-center gap-2 px-3 py-2.5 sm:py-2 bg-red-50 dark:bg-red-900/20 text-red-700 dark:text-red-300 rounded border border-red-300 dark:border-red-700 hover:bg-red-100 dark:hover:bg-red-900/30 text-sm font-medium transition-colors disabled:opacity-50 disabled:cursor-not-allowed cursor-pointer"
         >
           {isDeleting ? (
             <>
diff --git a/src/components/ProgressMonitor.tsx b/src/components/ProgressMonitor.tsx
index 29ec2e8..263758f 100644
--- a/src/components/ProgressMonitor.tsx
+++ b/src/components/ProgressMonitor.tsx
@@ -236,7 +236,7 @@ export function ProgressMonitor({
                 <div className="font-semibold text-xs dark:text-gray-100">
                   {stateVisual.label}
                 </div>
-                <div className="text-[10px] text-gray-600 dark:text-gray-400">
+                <div className="text-xs text-gray-600 dark:text-gray-400">
                   {stateVisual.description}
                 </div>
               </div>
@@ -317,7 +317,7 @@ export function ProgressMonitor({
                           </span>
                         )}
                       </div>
-                      <div className="text-[10px] text-gray-600 dark:text-gray-400 mt-0.5">
+                      <div className="text-xs text-gray-600 dark:text-gray-400 mt-0.5">
                         {block.stitchCount.toLocaleString()} stitches
                       </div>
                     </div>
@@ -369,7 +369,7 @@ export function ProgressMonitor({
           <button
             onClick={onResumeSewing}
             disabled={isDeleting}
-            className="flex-1 flex items-center justify-center gap-1.5 px-3 py-2 bg-blue-600 dark:bg-blue-700 text-white rounded font-semibold text-xs hover:bg-blue-700 dark:hover:bg-blue-600 active:bg-blue-800 dark:active:bg-blue-500 transition-colors cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed"
+            className="flex-1 flex items-center justify-center gap-1.5 px-3 py-2.5 sm:py-2 bg-blue-600 dark:bg-blue-700 text-white rounded font-semibold text-xs hover:bg-blue-700 dark:hover:bg-blue-600 active:bg-blue-800 dark:active:bg-blue-500 transition-colors cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed"
             aria-label="Resume sewing the current pattern"
           >
             <PlayIcon className="w-3.5 h-3.5" />
@@ -382,7 +382,7 @@ export function ProgressMonitor({
           <button
             onClick={onStartSewing}
             disabled={isDeleting}
-            className="flex-[2] flex items-center justify-center gap-1.5 px-3 py-2 bg-blue-600 dark:bg-blue-700 text-white rounded font-semibold text-xs hover:bg-blue-700 dark:hover:bg-blue-600 active:bg-blue-800 dark:active:bg-blue-500 transition-colors cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed"
+            className="flex-[2] flex items-center justify-center gap-1.5 px-3 py-2.5 sm:py-2 bg-blue-600 dark:bg-blue-700 text-white rounded font-semibold text-xs hover:bg-blue-700 dark:hover:bg-blue-600 active:bg-blue-800 dark:active:bg-blue-500 transition-colors cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed"
             aria-label="Start sewing the pattern"
           >
             <PlayIcon className="w-3.5 h-3.5" />
@@ -395,7 +395,7 @@ export function ProgressMonitor({
           <button
             onClick={onStartMaskTrace}
             disabled={isDeleting}
-            className="flex-1 flex items-center justify-center gap-1.5 px-3 py-2 bg-gray-600 dark:bg-gray-700 text-white rounded font-semibold text-xs hover:bg-gray-700 dark:hover:bg-gray-600 active:bg-gray-800 dark:active:bg-gray-500 transition-colors cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed"
+            className="flex-1 flex items-center justify-center gap-1.5 px-3 py-2.5 sm:py-2 bg-gray-600 dark:bg-gray-700 text-white rounded font-semibold text-xs hover:bg-gray-700 dark:hover:bg-gray-600 active:bg-gray-800 dark:active:bg-gray-500 transition-colors cursor-pointer disabled:opacity-50 disabled:cursor-not-allowed"
             aria-label={
               isMaskTraceComplete
                 ? "Start mask trace again"
diff --git a/src/components/WorkflowStepper.tsx b/src/components/WorkflowStepper.tsx
index b270369..1f03ebc 100644
--- a/src/components/WorkflowStepper.tsx
+++ b/src/components/WorkflowStepper.tsx
@@ -59,16 +59,16 @@ export function WorkflowStepper({ machineStatus, isConnected, hasPattern, patter
   const currentStep = getCurrentStep(machineStatus, isConnected, hasPattern, patternUploaded);
 
   return (
-    <div className="relative max-w-5xl mx-auto mt-4" role="navigation" aria-label="Workflow progress">
+    <div className="relative max-w-5xl mx-auto mt-2 lg:mt-4" role="navigation" aria-label="Workflow progress">
       {/* Progress bar background */}
-      <div className="absolute top-5 left-0 right-0 h-1 bg-blue-400/20 dark:bg-blue-600/20 rounded-full" style={{ left: '24px', right: '24px' }} />
+      <div className="absolute top-4 lg:top-5 left-0 right-0 h-0.5 lg:h-1 bg-blue-400/20 dark:bg-blue-600/20 rounded-full" style={{ left: '16px', right: '16px' }} />
 
       {/* Progress bar fill */}
       <div
-        className="absolute top-5 left-0 h-1 bg-gradient-to-r from-green-500 to-blue-500 dark:from-green-600 dark:to-blue-600 transition-all duration-500 rounded-full"
+        className="absolute top-4 lg:top-5 left-0 h-0.5 lg:h-1 bg-gradient-to-r from-green-500 to-blue-500 dark:from-green-600 dark:to-blue-600 transition-all duration-500 rounded-full"
         style={{
-          left: '24px',
-          width: `calc(${((currentStep - 1) / (steps.length - 1)) * 100}% - 24px)`
+          left: '16px',
+          width: `calc(${((currentStep - 1) / (steps.length - 1)) * 100}% - 16px)`
         }}
         role="progressbar"
         aria-valuenow={currentStep}
@@ -95,22 +95,22 @@ export function WorkflowStepper({ machineStatus, isConnected, hasPattern, patter
               {/* Step circle */}
               <div
                 className={`
-                  w-10 h-10 rounded-full flex items-center justify-center font-bold text-xs transition-all duration-300 border-2 shadow-md
+                  w-8 h-8 lg:w-10 lg:h-10 rounded-full flex items-center justify-center font-bold text-xs transition-all duration-300 border-2 shadow-md
                   ${isComplete ? 'bg-green-500 dark:bg-green-600 border-green-400 dark:border-green-500 text-white shadow-green-500/30 dark:shadow-green-600/30' : ''}
-                  ${isCurrent ? 'bg-blue-600 dark:bg-blue-700 border-blue-500 dark:border-blue-600 text-white scale-110 shadow-blue-600/40 dark:shadow-blue-700/40 ring-2 ring-blue-300 dark:ring-blue-500 ring-offset-2 dark:ring-offset-gray-900' : ''}
+                  ${isCurrent ? 'bg-blue-600 dark:bg-blue-700 border-blue-500 dark:border-blue-600 text-white scale-105 lg:scale-110 shadow-blue-600/40 dark:shadow-blue-700/40 ring-2 ring-blue-300 dark:ring-blue-500 ring-offset-2 dark:ring-offset-gray-900' : ''}
                   ${isUpcoming ? 'bg-blue-700 dark:bg-blue-800 border-blue-500/30 dark:border-blue-600/30 text-blue-200/70 dark:text-blue-300/70' : ''}
                 `}
                 aria-label={`${step.label}: ${isComplete ? 'completed' : isCurrent ? 'current' : 'upcoming'}`}
               >
                 {isComplete ? (
-                  <CheckCircleIcon className="w-6 h-6" aria-hidden="true" />
+                  <CheckCircleIcon className="w-5 h-5 lg:w-6 lg:h-6" aria-hidden="true" />
                 ) : (
                   step.id
                 )}
               </div>
 
               {/* Step label */}
-              <div className="mt-2 text-center">
+              <div className="mt-1 lg:mt-2 text-center">
                 <div className={`text-xs font-semibold leading-tight ${
                   isCurrent ? 'text-white' : isComplete ? 'text-green-200 dark:text-green-300' : 'text-blue-300/70 dark:text-blue-400/70'
                 }`}>