diff --git a/docs/blog-layout-spec.md b/docs/blog-layout-spec.md
new file mode 100644
index 0000000..4178874
--- /dev/null
+++ b/docs/blog-layout-spec.md
@@ -0,0 +1,30 @@
+# Blog post layout spec
+
+This document defines the shared layout and spacing for the blog post detail screen so that the **blog-editor mobile preview** and the **Android app** (BlogDetailScreen) match exactly.
+
+## Values (single source of truth)
+
+| Element | Web (Tailwind) | Android (Compose) | Notes |
+|--------|----------------|-------------------|--------|
+| Screen horizontal padding | `px-4` (16px) | `16.dp` | Gutter for title, date, divider, body |
+| Header block vertical padding | `py-6` (24px) | `24.dp` | Top and bottom of header block |
+| Gap between title and date | `mb-3` (12px) | `12.dp` | |
+| Divider | Full width, `px-4` inset | `padding(horizontal = 16.dp)` | |
+| Gap between divider and content | `pt-6` (24px) | `24.dp` | |
+| Content block vertical padding | 0 top, 0 bottom | None | Only horizontal padding on content |
+| Paragraph / block spacing | `mb-3` (12px) | `12.dp` | Between paragraphs and after blocks |
+| Image block vertical margin | `my-2` (8px) | `8.dp` | Top and bottom of image |
+| Image caption gap | `mt-1` (4px) | `4.dp` | Above caption text |
+| Bottom padding (scroll) | `h-8` (32px) | `32.dp` | |
+| TopAppBar | `px-4 py-3` | Material TopAppBar | Back + "Blog Post" |
+
+## Image caption
+
+- Only show caption when `title` is present and **not** the literal string `"null"` (case-insensitive). Both Web and Android must hide caption when title is null, blank, or `"null"` to avoid showing "null" on screen.
+
+## Where this is used
+
+- **blog-editor frontend**: [MobilePreview.jsx](../frontend/src/components/MobilePreview.jsx), [TipTapContentRenderer.jsx](../frontend/src/components/TipTapContentRenderer.jsx)
+- **Android app**: [BlogDetailScreen.kt](../../android-app/app/src/main/java/com/livingai/android/ui/screens/BlogDetailScreen.kt), [TipTapContentRenderer.kt](../../android-app/app/src/main/java/com/livingai/android/ui/components/TipTapContentRenderer.kt)
+
+When changing layout or spacing, update both codebases and this spec.
diff --git a/frontend/package.json b/frontend/package.json
index f1ae042..4b3af30 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -12,6 +12,7 @@
     "@tiptap/extension-bubble-menu": "^3.19.0",
     "@tiptap/extension-color": "^2.1.13",
     "@tiptap/extension-image": "^2.1.13",
+    "@tiptap/extension-link": "^2.1.13",
     "@tiptap/extension-text-style": "^2.1.13",
     "@tiptap/extension-underline": "^2.1.13",
     "@tiptap/react": "^2.1.13",
diff --git a/frontend/src/components/Editor.jsx b/frontend/src/components/Editor.jsx
index 1600241..d618692 100644
--- a/frontend/src/components/Editor.jsx
+++ b/frontend/src/components/Editor.jsx
@@ -4,8 +4,10 @@ import StarterKit from '@tiptap/starter-kit'
 import TextStyle from '@tiptap/extension-text-style'
 import Color from '@tiptap/extension-color'
 import Underline from '@tiptap/extension-underline'
+import Link from '@tiptap/extension-link'
 import { FontSize } from '../extensions/FontSize'
 import { ImageResize } from '../extensions/ImageResize'
+import { YouTube } from '../extensions/YouTube'
 import Toolbar from './Toolbar'
 import ImageBubbleMenu from './ImageBubbleMenu'
 import MediaLibraryModal from './MediaLibraryModal'
@@ -131,9 +133,11 @@ export default function Editor({ content, onChange, onImageUpload, postId, sessi
     extensions: [
       StarterKit,
       ImageResize,
+      YouTube,
       TextStyle,
       Color,
       Underline,
+      Link.configure({ openOnClick: false }),
       FontSize,
     ],
     content: content || '',
@@ -195,7 +199,7 @@ export default function Editor({ content, onChange, onImageUpload, postId, sessi
   }
 
   return (
-    <div className="border border-gray-300 rounded-lg overflow-hidden">
+    <div className="border border-gray-300 rounded-lg overflow-visible">
       <Toolbar
         editor={editor}
         onImageUpload={handleImageUpload}
@@ -207,7 +211,9 @@ export default function Editor({ content, onChange, onImageUpload, postId, sessi
         postId={postId}
         sessionId={sessionId}
       />
-      <EditorContent editor={editor} className="min-h-[400px] bg-white" />
+      <div className="relative z-0 pt-4 bg-white">
+        <EditorContent editor={editor} className="min-h-[240px] sm:min-h-[400px]" />
+      </div>
       <ImageBubbleMenu
         editor={editor}
         onReplaceClick={() => {
diff --git a/frontend/src/components/MediaLibraryModal.jsx b/frontend/src/components/MediaLibraryModal.jsx
index 15ec330..33d22df 100644
--- a/frontend/src/components/MediaLibraryModal.jsx
+++ b/frontend/src/components/MediaLibraryModal.jsx
@@ -85,7 +85,7 @@ export default function MediaLibraryModal({
       onClick={onClose}
     >
       <div
-        className="bg-white rounded-lg shadow-xl w-full max-w-[600px] max-h-[90vh] flex flex-col"
+        className="bg-white rounded-lg shadow-xl w-full max-w-[600px] max-h-[85vh] sm:max-h-[90vh] flex flex-col mx-2 sm:mx-4"
         onClick={(e) => e.stopPropagation()}
         role="document"
       >
diff --git a/frontend/src/components/MobilePreview.jsx b/frontend/src/components/MobilePreview.jsx
index 9422162..413309d 100644
--- a/frontend/src/components/MobilePreview.jsx
+++ b/frontend/src/components/MobilePreview.jsx
@@ -48,14 +48,14 @@ export default function MobilePreview({ title, content, createdAt }) {
           <h2 className="text-lg font-semibold text-gray-900">Blog Post</h2>
         </div>
 
-        {/* Scrollable Content Area */}
+        {/* Scrollable Content Area - layout matches Android BlogDetailScreen (see blog layout spec) */}
         <div className="flex-1 overflow-y-auto">
-          {/* Header Section with Title and Date */}
-          <div className="px-4 py-6">
+          {/* Header: 16px horizontal, 24px vertical; 12px gap between title and date */}
+          <div className="px-4 pt-6 pb-6">
             <h1 className="text-3xl font-bold text-gray-900 mb-3 leading-tight">
               {title || 'Untitled Post'}
             </h1>
-            <p className="text-sm text-gray-500">
+            <p className="text-sm text-gray-600">
               {formattedDate}
             </p>
           </div>
@@ -65,8 +65,8 @@ export default function MobilePreview({ title, content, createdAt }) {
             <hr className="border-gray-200" />
           </div>
 
-          {/* Content Section */}
-          <div className="px-4 py-6">
+          {/* Content: 16px horizontal only, 24px gap after divider */}
+          <div className="px-4 pt-6">
             {content ? (
               <TipTapContentRenderer content={content} />
             ) : (
@@ -76,7 +76,7 @@ export default function MobilePreview({ title, content, createdAt }) {
             )}
           </div>
 
-          {/* Bottom padding for better scrolling */}
+          {/* Bottom padding for scroll (32px) */}
           <div className="h-8" />
         </div>
       </div>
diff --git a/frontend/src/components/TipTapContentRenderer.jsx b/frontend/src/components/TipTapContentRenderer.jsx
index 6c950a2..151edce 100644
--- a/frontend/src/components/TipTapContentRenderer.jsx
+++ b/frontend/src/components/TipTapContentRenderer.jsx
@@ -1,4 +1,5 @@
 import React from 'react'
+import { getYouTubeEmbedUrl } from '../extensions/YouTube'
 
 /**
  * Renders TipTap JSON content as HTML matching Android styling
@@ -61,6 +62,11 @@ function RenderNode({ node }) {
         <ImageNode attrs={attrs} />
       )
 
+    case 'youtube':
+      return (
+        <YoutubeNode attrs={attrs} />
+      )
+
     case 'blockquote':
       return (
         <BlockquoteNode content={content} marks={marks} />
@@ -124,12 +130,12 @@ function HeadingNode({ level, content, marks }) {
   if (!textContent.trim()) return null
 
   const headingClasses = {
-    1: 'text-3xl font-bold mb-4 mt-6',
-    2: 'text-2xl font-bold mb-4 mt-6',
-    3: 'text-xl font-bold mb-3 mt-5',
-    4: 'text-lg font-bold mb-3 mt-4',
-    5: 'text-base font-bold mb-2 mt-3',
-    6: 'text-sm font-bold mb-2 mt-3'
+    1: 'text-3xl font-bold mb-3 mt-3',
+    2: 'text-2xl font-bold mb-3 mt-3',
+    3: 'text-xl font-bold mb-3 mt-3',
+    4: 'text-lg font-bold mb-3 mt-3',
+    5: 'text-base font-bold mb-3 mt-3',
+    6: 'text-sm font-bold mb-3 mt-3'
   }
 
   const Tag = `h${level}`
@@ -183,26 +189,44 @@ function ListItemNode({ content, marks }) {
   )
 }
 
+function YoutubeNode({ attrs }) {
+  const videoId = attrs?.videoId
+  if (!videoId) return null
+  const embedUrl = getYouTubeEmbedUrl(videoId)
+  return (
+    <div className="my-3 mx-auto rounded-lg overflow-hidden aspect-video w-full max-w-[640px]">
+      <iframe
+        src={embedUrl}
+        title="YouTube video"
+        className="w-full h-full border-0"
+        allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
+        allowFullScreen
+      />
+    </div>
+  )
+}
+
 function ImageNode({ attrs }) {
   const { src, alt = '', title = null, width, height, align } = attrs
 
   if (!src) return null
 
+  const showCaption = title && String(title).toLowerCase() !== 'null'
   const alignClass = align === 'left' ? 'mr-auto' : align === 'right' ? 'ml-auto' : 'mx-auto'
-  const style = {}
-  if (width) style.width = `${width}px`
-  if (height) style.height = `${height}px`
+  // In read-only view (preview/app), images fill container width so they don't appear small and centered.
+  // Stored width/height are not applied so layout is responsive; alignment still respected.
+  const style = { width: '100%', maxWidth: '100%', height: 'auto' }
 
   return (
-    <div className={`mb-4 block ${alignClass}`}>
+    <div className={`my-2 block w-full ${alignClass}`}>
       <img
         src={src}
         alt={alt}
-        className="max-w-full h-auto rounded-lg"
-        style={Object.keys(style).length ? style : undefined}
+        className="max-w-full h-auto rounded-lg block"
+        style={style}
       />
-      {title && (
-        <p className="text-sm text-gray-500 text-center mt-2">
+      {showCaption && (
+        <p className="text-sm text-gray-500 text-center mt-1">
           {title}
         </p>
       )}
@@ -232,7 +256,7 @@ function CodeBlockNode({ content }) {
 
 function HorizontalRuleNode() {
   return (
-    <hr className="my-4 border-gray-200 opacity-30" />
+    <hr className="my-3 border-gray-200 opacity-30" />
   )
 }
 
@@ -265,6 +289,17 @@ function TextNode({ text, marks = [] }) {
         if (fontSize) style.fontSize = fontSize
         element = <span style={style}>{element}</span>
         break
+      case 'link': {
+        const href = mark.attrs?.href
+        if (href) {
+          element = (
+            <a href={href} target="_blank" rel="noopener noreferrer" className="text-indigo-600 underline hover:text-indigo-800">
+              {element}
+            </a>
+          )
+        }
+        break
+      }
       case 'code':
         element = <code className="bg-gray-100 px-1 rounded text-sm font-mono">{element}</code>
         break
diff --git a/frontend/src/components/Toolbar.jsx b/frontend/src/components/Toolbar.jsx
index 6d67f82..8ea0d68 100644
--- a/frontend/src/components/Toolbar.jsx
+++ b/frontend/src/components/Toolbar.jsx
@@ -1,27 +1,109 @@
-import { useState } from 'react'
+import { useState, useRef, useEffect } from 'react'
+import toast from 'react-hot-toast'
+
+const POPOVER_STYLE = 'absolute top-full left-0 mt-1 bg-white border border-gray-300 rounded-lg shadow-lg p-3 z-30'
+
+const HEX_REGEX = /^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/
 
 const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, postId, sessionId }) => {
   const [showColorPicker, setShowColorPicker] = useState(false)
   const [showFontSize, setShowFontSize] = useState(false)
+  const [showYoutubeInput, setShowYoutubeInput] = useState(false)
+  const [youtubeUrl, setYoutubeUrl] = useState('')
+  const [showLinkPopover, setShowLinkPopover] = useState(false)
+  const [linkUrl, setLinkUrl] = useState('')
+  const [customHex, setCustomHex] = useState('')
+  const customColorInputRef = useRef(null)
+  const toolbarRef = useRef(null)
 
   if (!editor) {
     return null
   }
 
-  const colors = [
-    '#000000', '#374151', '#6B7280', '#9CA3AF', '#D1D5DB',
-    '#EF4444', '#F59E0B', '#10B981', '#3B82F6', '#8B5CF6',
+  const openColorPicker = () => {
+    setShowFontSize(false)
+    setShowYoutubeInput(false)
+    setShowColorPicker((v) => !v)
+  }
+  const openFontSize = () => {
+    setShowColorPicker(false)
+    setShowYoutubeInput(false)
+    setShowFontSize((v) => !v)
+  }
+  const openYoutubeInput = () => {
+    setShowColorPicker(false)
+    setShowFontSize(false)
+    setShowLinkPopover(false)
+    setShowYoutubeInput((v) => !v)
+  }
+  const openLinkPopover = () => {
+    setShowColorPicker(false)
+    setShowFontSize(false)
+    setShowYoutubeInput(false)
+    const prev = editor.getAttributes('link')?.href || ''
+    setLinkUrl(prev)
+    setShowLinkPopover((v) => !v)
+  }
+  const closeAllMenus = () => {
+    setShowColorPicker(false)
+    setShowFontSize(false)
+    setShowYoutubeInput(false)
+    setShowLinkPopover(false)
+  }
+
+  useEffect(() => {
+    const handleClickOutside = (e) => {
+      if (toolbarRef.current && !toolbarRef.current.contains(e.target)) {
+        closeAllMenus()
+      }
+    }
+    document.addEventListener('mousedown', handleClickOutside)
+    return () => document.removeEventListener('mousedown', handleClickOutside)
+  }, [])
+
+  useEffect(() => {
+    const handleEscape = (e) => {
+      if (e.key === 'Escape') closeAllMenus()
+    }
+    document.addEventListener('keydown', handleEscape)
+    return () => document.removeEventListener('keydown', handleEscape)
+  }, [])
+
+  const presetColors = [
+    '#000000', '#1f2937', '#374151', '#4b5563', '#6b7280', '#9ca3af', '#d1d5db', '#f3f4f6', '#ffffff',
+    '#ef4444', '#f97316', '#f59e0b', '#eab308', '#84cc16', '#22c55e', '#10b981', '#14b8a6', '#06b6d4',
+    '#0ea5e9', '#3b82f6', '#6366f1', '#8b5cf6', '#a855f7', '#d946ef', '#ec4899', '#f43f5e',
   ]
 
+  const applyColor = (color) => {
+    let hex = color.startsWith('#') ? color : `#${color}`
+    if (HEX_REGEX.test(hex)) {
+      if (hex.length === 4) {
+        hex = '#' + hex[1] + hex[1] + hex[2] + hex[2] + hex[3] + hex[3]
+      }
+      editor.chain().focus().setColor(hex).run()
+      setShowColorPicker(false)
+      setCustomHex('')
+    }
+  }
+
+  const openNativePicker = () => {
+    customColorInputRef.current?.click()
+  }
+
   const fontSizes = ['12px', '14px', '16px', '18px', '20px', '24px', '32px']
 
   return (
-    <div className="border-b border-gray-300 bg-gray-50 p-2 flex flex-wrap items-center gap-2">
+    <div
+      ref={toolbarRef}
+      className="sticky top-0 z-20 border-b border-gray-300 bg-gray-50 p-3 flex items-center gap-2 flex-wrap min-h-[72px]"
+    >
       {/* Text Formatting */}
-      <div className="flex items-center gap-1 border-r border-gray-300 pr-2">
+      <div className="flex items-center gap-1 border-r border-gray-300 pr-2 flex-shrink-0">
         <button
+          type="button"
           onClick={() => editor.chain().focus().toggleBold().run()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('bold') ? 'bg-gray-300' : ''
           }`}
           title="Bold"
@@ -29,8 +111,9 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
           <strong>B</strong>
         </button>
         <button
+          type="button"
           onClick={() => editor.chain().focus().toggleItalic().run()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('italic') ? 'bg-gray-300' : ''
           }`}
           title="Italic"
@@ -38,21 +121,80 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
           <em>I</em>
         </button>
         <button
+          type="button"
           onClick={() => editor.chain().focus().toggleUnderline().run()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('underline') ? 'bg-gray-300' : ''
           }`}
           title="Underline"
         >
           <u>U</u>
         </button>
+        <button
+          type="button"
+          onClick={openLinkPopover}
+          className={`p-2.5 rounded hover:bg-gray-200 ${
+            editor.isActive('link') ? 'bg-gray-300' : ''
+          }`}
+          title="Insert link"
+        >
+          <span className="text-sm font-medium">Link</span>
+        </button>
       </div>
 
+      {/* Link popover */}
+      {showLinkPopover && (
+        <div className={`${POPOVER_STYLE} min-w-[280px] right-0 left-auto`}>
+          <p className="text-sm font-medium text-gray-800 mb-2">Insert link</p>
+          <input
+            type="url"
+            value={linkUrl}
+            onChange={(e) => setLinkUrl(e.target.value)}
+            placeholder="https://..."
+            className="w-full px-3 py-2 text-sm border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 mb-2"
+            autoFocus
+          />
+          <div className="flex gap-2 justify-end flex-wrap">
+            {editor.isActive('link') && (
+              <button
+                type="button"
+                onClick={() => {
+                  editor.chain().focus().unsetLink().run()
+                  setShowLinkPopover(false)
+                  setLinkUrl('')
+                  toast.success('Link removed')
+                }}
+                className="px-3 py-1.5 text-sm rounded-md border border-gray-300 hover:bg-gray-100"
+              >
+                Remove link
+              </button>
+            )}
+            <button
+              type="button"
+              onClick={() => {
+                if (linkUrl.trim()) {
+                  editor.chain().focus().setLink({ href: linkUrl.trim() }).run()
+                  setShowLinkPopover(false)
+                  setLinkUrl('')
+                  toast.success('Link added')
+                } else {
+                  toast.error('Enter a URL')
+                }
+              }}
+              className="px-3 py-1.5 text-sm rounded-md bg-indigo-600 text-white hover:bg-indigo-700"
+            >
+              Set link
+            </button>
+          </div>
+        </div>
+      )}
+
       {/* Headings */}
-      <div className="flex items-center gap-1 border-r border-gray-300 pr-2">
+      <div className="flex items-center gap-1 border-r border-gray-300 pr-2 flex-shrink-0">
         <button
+          type="button"
           onClick={() => editor.chain().focus().toggleHeading({ level: 1 }).run()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('heading', { level: 1 }) ? 'bg-gray-300' : ''
           }`}
           title="Heading 1"
@@ -60,8 +202,9 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
           H1
         </button>
         <button
+          type="button"
           onClick={() => editor.chain().focus().toggleHeading({ level: 2 }).run()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('heading', { level: 2 }) ? 'bg-gray-300' : ''
           }`}
           title="Heading 2"
@@ -69,8 +212,9 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
           H2
         </button>
         <button
+          type="button"
           onClick={() => editor.chain().focus().toggleHeading({ level: 3 }).run()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('heading', { level: 3 }) ? 'bg-gray-300' : ''
           }`}
           title="Heading 3"
@@ -80,10 +224,11 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
       </div>
 
       {/* Lists */}
-      <div className="flex items-center gap-1 border-r border-gray-300 pr-2">
+      <div className="flex items-center gap-1 border-r border-gray-300 pr-2 flex-shrink-0">
         <button
+          type="button"
           onClick={() => editor.chain().focus().toggleBulletList().run()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('bulletList') ? 'bg-gray-300' : ''
           }`}
           title="Bullet List"
@@ -91,8 +236,9 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
           •
         </button>
         <button
+          type="button"
           onClick={() => editor.chain().focus().toggleOrderedList().run()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('orderedList') ? 'bg-gray-300' : ''
           }`}
           title="Numbered List"
@@ -102,10 +248,11 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
       </div>
 
       {/* Quote & Code */}
-      <div className="flex items-center gap-1 border-r border-gray-300 pr-2">
+      <div className="flex items-center gap-1 border-r border-gray-300 pr-2 flex-shrink-0">
         <button
+          type="button"
           onClick={() => editor.chain().focus().toggleBlockquote().run()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('blockquote') ? 'bg-gray-300' : ''
           }`}
           title="Quote"
@@ -113,8 +260,9 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
           "
         </button>
         <button
+          type="button"
           onClick={() => editor.chain().focus().toggleCodeBlock().run()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('codeBlock') ? 'bg-gray-300' : ''
           }`}
           title="Code Block"
@@ -124,54 +272,89 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
       </div>
 
       {/* Color Picker */}
-      <div className="relative border-r border-gray-300 pr-2">
+      <div className="relative border-r border-gray-300 pr-2 flex-shrink-0">
         <button
-          onClick={() => setShowColorPicker(!showColorPicker)}
-          className="p-2 rounded hover:bg-gray-200"
+          type="button"
+          onClick={openColorPicker}
+          className="p-2.5 rounded hover:bg-gray-200"
           title="Text Color"
         >
           🎨
         </button>
         {showColorPicker && (
-          <div className="absolute top-full left-0 mt-1 bg-white border border-gray-300 rounded shadow-lg p-2 z-10">
-            <div className="grid grid-cols-5 gap-1">
-              {colors.map((color) => (
+          <div className={`${POPOVER_STYLE} min-w-[220px]`}>
+            <p className="text-xs font-medium text-gray-700 mb-2">Text color</p>
+            <div className="grid grid-cols-9 gap-1 mb-3">
+              {presetColors.map((color) => (
                 <button
                   key={color}
-                  onClick={() => {
-                    editor.chain().focus().setColor(color).run()
-                    setShowColorPicker(false)
-                  }}
-                  className="w-6 h-6 rounded border border-gray-300"
+                  type="button"
+                  onClick={() => applyColor(color)}
+                  className="w-6 h-6 rounded border border-gray-300 hover:ring-2 hover:ring-gray-400 focus:outline-none focus:ring-2 focus:ring-indigo-500"
                   style={{ backgroundColor: color }}
                   title={color}
                 />
               ))}
             </div>
+            <div className="flex gap-2 items-center flex-wrap">
+              <input
+                ref={customColorInputRef}
+                type="color"
+                className="sr-only w-0 h-0"
+                tabIndex={-1}
+                onChange={(e) => applyColor(e.target.value)}
+              />
+              <input
+                type="text"
+                value={customHex}
+                onChange={(e) => setCustomHex(e.target.value)}
+                onKeyDown={(e) => e.key === 'Enter' && applyColor(customHex)}
+                placeholder="#000000"
+                className="flex-1 min-w-0 px-2 py-1.5 text-sm border border-gray-300 rounded focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-transparent"
+                maxLength={7}
+              />
+              <button
+                type="button"
+                onClick={() => applyColor(customHex)}
+                className="px-2 py-1.5 text-sm font-medium text-white bg-indigo-600 hover:bg-indigo-700 rounded focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:ring-offset-1"
+              >
+                Apply
+              </button>
+            </div>
+            <button
+              type="button"
+              onClick={openNativePicker}
+              className="mt-2 w-full px-2 py-1.5 text-sm text-gray-700 border border-gray-300 rounded hover:bg-gray-100 focus:outline-none focus:ring-2 focus:ring-indigo-500"
+            >
+              Choose custom color…
+            </button>
           </div>
         )}
       </div>
 
       {/* Font Size */}
-      <div className="relative border-r border-gray-300 pr-2">
+      <div className="relative border-r border-gray-300 pr-2 flex-shrink-0">
         <button
-          onClick={() => setShowFontSize(!showFontSize)}
-          className="p-2 rounded hover:bg-gray-200"
+          type="button"
+          onClick={openFontSize}
+          className="p-2.5 rounded hover:bg-gray-200"
           title="Font Size"
         >
           Aa
         </button>
         {showFontSize && (
-          <div className="absolute top-full left-0 mt-1 bg-white border border-gray-300 rounded shadow-lg p-2 z-10">
+          <div className={POPOVER_STYLE}>
+            <p className="text-xs font-medium text-gray-600 mb-2">Font size</p>
             {fontSizes.map((size) => (
               <button
                 key={size}
+                type="button"
                 onClick={() => {
                   const sizeValue = parseInt(size.replace('px', ''))
                   editor.chain().focus().setFontSize(sizeValue).run()
                   setShowFontSize(false)
                 }}
-                className="block w-full text-left px-2 py-1 hover:bg-gray-100 rounded text-sm"
+                className="block w-full text-left px-2 py-1.5 hover:bg-gray-100 rounded text-sm"
                 style={{ fontSize: size }}
               >
                 {size}
@@ -182,11 +365,11 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
       </div>
 
       {/* Media Library - Insert Image */}
-      <div>
+      <div className="flex-shrink-0">
         <button
           type="button"
           onClick={() => onOpenMediaLibrary?.()}
-          className={`p-2 rounded hover:bg-gray-200 ${
+          className={`p-2.5 rounded hover:bg-gray-200 ${
             editor.isActive('image') ? 'bg-gray-300' : ''
           }`}
           title="Insert Image (Media Library)"
@@ -194,6 +377,80 @@ const Toolbar = ({ editor, onImageUpload, onUploadFile, onOpenMediaLibrary, post
           🖼️
         </button>
       </div>
+
+      {/* YouTube */}
+      <div className="relative flex-shrink-0">
+        <button
+          type="button"
+          onClick={openYoutubeInput}
+          className={`p-2.5 rounded hover:bg-gray-200 ${
+            editor.isActive('youtube') ? 'bg-gray-300' : ''
+          }`}
+          title="Insert YouTube video"
+        >
+          ▶️
+        </button>
+        {showYoutubeInput && (
+          <div className={`${POPOVER_STYLE} min-w-[300px] right-0 left-auto`}>
+            <p className="text-sm font-medium text-gray-800 mb-2">Insert YouTube video</p>
+            <label htmlFor="toolbar-youtube-url" className="sr-only">
+              YouTube URL or video ID
+            </label>
+            <input
+              id="toolbar-youtube-url"
+              type="url"
+              inputMode="url"
+              autoComplete="url"
+              value={youtubeUrl}
+              onChange={(e) => setYoutubeUrl(e.target.value)}
+              placeholder="https://youtube.com/watch?v=... or video ID"
+              className="w-full px-3 py-2 text-sm border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-transparent mb-2"
+              autoFocus
+              onKeyDown={(e) => {
+                if (e.key === 'Enter') {
+                  e.preventDefault()
+                  const ok = editor.chain().focus().setYoutubeVideo({ src: youtubeUrl }).run()
+                  if (ok) {
+                    setShowYoutubeInput(false)
+                    setYoutubeUrl('')
+                    toast.success('YouTube video inserted')
+                  } else {
+                    toast.error('Invalid YouTube URL or video ID')
+                  }
+                }
+              }}
+            />
+            <p className="text-xs text-gray-500 mb-3">
+              Supports youtube.com/watch, youtu.be/..., or 11-character video ID
+            </p>
+            <div className="flex gap-2 justify-end">
+              <button
+                type="button"
+                onClick={() => { setShowYoutubeInput(false); setYoutubeUrl('') }}
+                className="px-3 py-1.5 text-sm rounded-md border border-gray-300 hover:bg-gray-100"
+              >
+                Cancel
+              </button>
+              <button
+                type="button"
+                onClick={() => {
+                  const ok = editor.chain().focus().setYoutubeVideo({ src: youtubeUrl }).run()
+                  if (ok) {
+                    setShowYoutubeInput(false)
+                    setYoutubeUrl('')
+                    toast.success('YouTube video inserted')
+                  } else {
+                    toast.error('Invalid YouTube URL or video ID')
+                  }
+                }}
+                className="px-3 py-1.5 text-sm rounded-md bg-red-600 text-white hover:bg-red-700"
+              >
+                Insert
+              </button>
+            </div>
+          </div>
+        )}
+      </div>
     </div>
   )
 }
diff --git a/frontend/src/extensions/YouTube.js b/frontend/src/extensions/YouTube.js
new file mode 100644
index 0000000..4dcd12b
--- /dev/null
+++ b/frontend/src/extensions/YouTube.js
@@ -0,0 +1,127 @@
+import { Node } from '@tiptap/core'
+
+/**
+ * Extract YouTube video ID from URL or return the string if it looks like a video ID.
+ * Supports: youtube.com/watch?v=ID, youtu.be/ID, youtube.com/embed/ID
+ */
+export function getYouTubeVideoId(urlOrId) {
+  if (!urlOrId || typeof urlOrId !== 'string') return null
+  const s = urlOrId.trim()
+  if (/^[a-zA-Z0-9_-]{11}$/.test(s)) return s
+  try {
+    const url = s.startsWith('http') ? new URL(s) : new URL(`https://${s}`)
+    const host = url.hostname.replace(/^www\./, '')
+    if (host === 'youtube.com' || host === 'youtu.be') {
+      if (host === 'youtu.be') return url.pathname.slice(1).split('/')[0] || null
+      if (url.pathname === '/watch' && url.searchParams.get('v')) return url.searchParams.get('v')
+      const m = url.pathname.match(/^\/embed\/([a-zA-Z0-9_-]+)/)
+      if (m) return m[1]
+      return url.searchParams.get('v') || null
+    }
+  } catch (_) {}
+  return null
+}
+
+export function getYouTubeEmbedUrl(videoId) {
+  if (!videoId) return ''
+  return `https://www.youtube.com/embed/${videoId}`
+}
+
+export const YouTube = Node.create({
+  name: 'youtube',
+
+  group: 'block',
+  atom: true,
+
+  addAttributes() {
+    return {
+      videoId: {
+        default: null,
+        parseHTML: (el) => {
+          const iframe = el.querySelector?.('iframe')
+          const src = iframe?.getAttribute('src') || el.getAttribute('data-youtube-src')
+          if (src) {
+            const m = src.match(/(?:embed\/|v=)([a-zA-Z0-9_-]{11})/)
+            return m ? m[1] : null
+          }
+          return el.getAttribute('data-youtube-video-id') || null
+        },
+        renderHTML: (attrs) => {
+          if (!attrs.videoId) return {}
+          return { 'data-youtube-video-id': attrs.videoId }
+        },
+      },
+    }
+  },
+
+  parseHTML() {
+    return [
+      {
+        tag: 'div[data-youtube-video-id]',
+        getAttrs: (el) => ({ videoId: el.getAttribute('data-youtube-video-id') }),
+      },
+      {
+        tag: 'iframe[src*="youtube.com/embed/"]',
+        getAttrs: (el) => {
+          const src = el.getAttribute('src') || ''
+          const m = src.match(/(?:embed\/)([a-zA-Z0-9_-]{11})/)
+          return m ? { videoId: m[1] } : false
+        },
+      },
+    ]
+  },
+
+  renderHTML({ node }) {
+    const id = node.attrs.videoId
+    if (!id) return ['div', { class: 'youtube-placeholder' }, 'YouTube video']
+    const src = getYouTubeEmbedUrl(id)
+    return [
+      'div',
+      { class: 'youtube-embed-wrapper', 'data-youtube-video-id': id },
+      ['iframe', { src, class: 'youtube-embed', width: '100%', height: '315', frameborder: '0', allowfullscreen: 'true', allow: 'accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture' }],
+    ]
+  },
+
+  addCommands() {
+    return {
+      setYoutubeVideo:
+        (attrs) =>
+        ({ commands }) => {
+          const videoId = attrs.videoId || getYouTubeVideoId(attrs.src || attrs.url)
+          if (!videoId) return false
+          return commands.insertContent({ type: this.name, attrs: { videoId } })
+        },
+    }
+  },
+
+  addNodeView() {
+    return ({ node, editor }) => {
+      const div = document.createElement('div')
+      div.className = 'youtube-node-view'
+      div.setAttribute('data-youtube-video-id', node.attrs.videoId || '')
+
+      const videoId = node.attrs.videoId
+      if (videoId) {
+        const iframe = document.createElement('iframe')
+        iframe.src = getYouTubeEmbedUrl(videoId)
+        iframe.className = 'youtube-embed'
+        iframe.setAttribute('width', '100%')
+        iframe.setAttribute('height', '315')
+        iframe.setAttribute('frameborder', '0')
+        iframe.setAttribute('allowfullscreen', 'true')
+        iframe.setAttribute('allow', 'accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture')
+        iframe.setAttribute('title', 'YouTube video')
+        iframe.style.display = 'block'
+        iframe.style.minHeight = '220px'
+        div.appendChild(iframe)
+      } else {
+        const placeholder = document.createElement('div')
+        placeholder.className = 'youtube-placeholder-inner'
+        placeholder.textContent = 'YouTube video (missing ID)'
+        div.appendChild(placeholder)
+      }
+
+      return { dom: div }
+    }
+  },
+})
diff --git a/frontend/src/index.css b/frontend/src/index.css
index c5893bf..f1d1b11 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -13,8 +13,14 @@ body {
 
 .ProseMirror {
   outline: none;
-  min-height: 400px;
-  padding: 1rem;
+  min-height: 200px;
+  padding: 0.75rem 1rem;
+}
+@media (min-width: 640px) {
+  .ProseMirror {
+    min-height: 400px;
+    padding: 1rem;
+  }
 }
 
 .ProseMirror p {
@@ -22,22 +28,39 @@ body {
 }
 
 .ProseMirror h1 {
-  font-size: 2rem;
-  font-weight: bold;
-  margin: 1rem 0;
-}
-
-.ProseMirror h2 {
   font-size: 1.5rem;
   font-weight: bold;
   margin: 0.75rem 0;
 }
+@media (min-width: 640px) {
+  .ProseMirror h1 {
+    font-size: 2rem;
+    margin: 1rem 0;
+  }
+}
 
-.ProseMirror h3 {
+.ProseMirror h2 {
   font-size: 1.25rem;
   font-weight: bold;
   margin: 0.5rem 0;
 }
+@media (min-width: 640px) {
+  .ProseMirror h2 {
+    font-size: 1.5rem;
+    margin: 0.75rem 0;
+  }
+}
+
+.ProseMirror h3 {
+  font-size: 1.125rem;
+  font-weight: bold;
+  margin: 0.5rem 0;
+}
+@media (min-width: 640px) {
+  .ProseMirror h3 {
+    font-size: 1.25rem;
+  }
+}
 
 .ProseMirror ul,
 .ProseMirror ol {
@@ -67,6 +90,15 @@ body {
   font-family: 'Courier New', monospace;
 }
 
+.ProseMirror a {
+  color: #4f46e5;
+  text-decoration: underline;
+  cursor: pointer;
+}
+.ProseMirror a:hover {
+  color: #4338ca;
+}
+
 .ProseMirror img {
   max-width: 100%;
   height: auto;
@@ -154,6 +186,52 @@ body {
   transform: scale(1.1);
 }
 
+/* YouTube embed in editor - centered and always visible */
+.ProseMirror .youtube-node-view {
+  margin: 1rem auto;
+  border-radius: 8px;
+  overflow: hidden;
+  max-width: 640px;
+  width: 100%;
+  min-height: 220px;
+  display: block;
+  position: relative;
+  background: #0f0f0f;
+  border: 1px solid #e5e7eb;
+}
+.ProseMirror .youtube-node-view iframe,
+.ProseMirror .youtube-embed-wrapper iframe {
+  display: block;
+  width: 100%;
+  height: 315px;
+  min-height: 220px;
+  aspect-ratio: 16 / 9;
+  max-height: 400px;
+  border: none;
+  vertical-align: top;
+}
+.ProseMirror .youtube-embed-wrapper {
+  margin: 1rem auto;
+  border-radius: 8px;
+  overflow: hidden;
+  max-width: 640px;
+  width: 100%;
+  min-height: 220px;
+  display: block;
+  background: #0f0f0f;
+}
+.ProseMirror .youtube-placeholder-inner {
+  padding: 2rem;
+  background: #f3f4f6;
+  color: #6b7280;
+  text-align: center;
+  border-radius: 8px;
+  min-height: 180px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
 /* Mobile Preview Styles */
 .mobile-preview-container {
   scrollbar-width: thin;
diff --git a/frontend/src/pages/BlogPost.jsx b/frontend/src/pages/BlogPost.jsx
index 6a345dd..67d431a 100644
--- a/frontend/src/pages/BlogPost.jsx
+++ b/frontend/src/pages/BlogPost.jsx
@@ -6,6 +6,7 @@ import Image from '@tiptap/extension-image'
 import TextStyle from '@tiptap/extension-text-style'
 import Color from '@tiptap/extension-color'
 import Underline from '@tiptap/extension-underline'
+import Link from '@tiptap/extension-link'
 import { FontSize } from '../extensions/FontSize'
 import api from '../utils/api'
 
@@ -21,6 +22,10 @@ export default function BlogPost() {
       TextStyle,
       Color,
       Underline,
+      Link.configure({
+        openOnClick: true,
+        HTMLAttributes: { target: '_blank', rel: 'noopener noreferrer' },
+      }),
       FontSize,
     ],
     content: null,
@@ -59,10 +64,10 @@ export default function BlogPost() {
 
   if (!post) {
     return (
-      <div className="flex items-center justify-center min-h-screen">
-        <div className="text-center">
-          <h1 className="text-2xl font-bold text-gray-900 mb-4">Post not found</h1>
-          <p className="text-gray-600">The post you're looking for doesn't exist.</p>
+      <div className="flex items-center justify-center min-h-screen px-4">
+        <div className="text-center max-w-md">
+          <h1 className="text-xl sm:text-2xl font-bold text-gray-900 mb-4">Post not found</h1>
+          <p className="text-gray-600 text-sm sm:text-base">The post you're looking for doesn't exist.</p>
         </div>
       </div>
     )
@@ -70,9 +75,9 @@ export default function BlogPost() {
 
   return (
     <div className="min-h-screen bg-gray-50">
-      <article className="max-w-4xl mx-auto px-4 sm:px-6 lg:px-8 py-12">
-        <header className="mb-8">
-          <h1 className="text-4xl font-bold text-gray-900 mb-4">{post.title}</h1>
+      <article className="max-w-4xl mx-auto px-4 sm:px-6 lg:px-8 py-6 sm:py-12">
+        <header className="mb-6 sm:mb-8">
+          <h1 className="text-2xl sm:text-3xl md:text-4xl font-bold text-gray-900 mb-3 sm:mb-4 break-words">{post.title}</h1>
           <div className="text-sm text-gray-500">
             Published on {new Date(post.created_at).toLocaleDateString('en-US', {
               year: 'numeric',
@@ -82,7 +87,7 @@ export default function BlogPost() {
           </div>
         </header>
 
-        <div className="bg-white rounded-lg shadow-sm p-8">
+        <div className="bg-white rounded-lg shadow-sm p-4 sm:p-6 md:p-8 overflow-x-hidden">
           {editor && <EditorContent editor={editor} />}
         </div>
       </article>
diff --git a/frontend/src/pages/Dashboard.jsx b/frontend/src/pages/Dashboard.jsx
index 4ff062f..2c497ce 100644
--- a/frontend/src/pages/Dashboard.jsx
+++ b/frontend/src/pages/Dashboard.jsx
@@ -57,22 +57,24 @@ export default function Dashboard() {
   return (
     <div className="min-h-screen bg-gray-50">
       <nav className="bg-white shadow">
-        <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
-          <div className="flex justify-between h-16">
-            <div className="flex items-center">
-              <h1 className="text-xl font-bold text-gray-900">Blog Editor</h1>
+        <div className="max-w-7xl mx-auto px-3 sm:px-6 lg:px-8">
+          <div className="flex flex-col sm:flex-row sm:justify-between sm:items-center gap-3 py-3 sm:py-0 sm:h-16 sm:flex-nowrap">
+            <div className="flex items-center min-w-0">
+              <h1 className="text-lg sm:text-xl font-bold text-gray-900 truncate">Blog Editor</h1>
             </div>
-            <div className="flex items-center space-x-4">
-              <span className="text-gray-700">{user?.phone_number || 'Guest'}</span>
+            <div className="flex flex-wrap items-center gap-2 sm:gap-4">
+              <span className="text-sm sm:text-base text-gray-700 truncate max-w-[140px] sm:max-w-none" title={user?.phone_number || 'Guest'}>
+                {user?.phone_number || 'Guest'}
+              </span>
               <Link
                 to="/editor"
-                className="bg-indigo-600 text-white px-4 py-2 rounded-md hover:bg-indigo-700"
+                className="bg-indigo-600 text-white px-3 py-2 sm:px-4 rounded-md hover:bg-indigo-700 text-sm font-medium whitespace-nowrap"
               >
                 New Post
               </Link>
               <button
                 onClick={logout}
-                className="text-gray-700 hover:text-gray-900"
+                className="text-gray-700 hover:text-gray-900 text-sm sm:text-base px-2 py-1 rounded hover:bg-gray-100"
               >
                 Logout
               </button>
@@ -81,29 +83,29 @@ export default function Dashboard() {
         </div>
       </nav>
 
-      <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
-        <h2 className="text-2xl font-bold text-gray-900 mb-6">Your Posts</h2>
+      <div className="max-w-7xl mx-auto px-3 sm:px-6 lg:px-8 py-4 sm:py-8">
+        <h2 className="text-xl sm:text-2xl font-bold text-gray-900 mb-4 sm:mb-6">Your Posts</h2>
 
         {posts.length === 0 ? (
-          <div className="text-center py-12">
-            <p className="text-gray-500 mb-4">No posts yet. Create your first post!</p>
+          <div className="text-center py-8 sm:py-12 px-4">
+            <p className="text-gray-500 mb-4 text-sm sm:text-base">No posts yet. Create your first post!</p>
             <Link
               to="/editor"
-              className="inline-block bg-indigo-600 text-white px-6 py-3 rounded-md hover:bg-indigo-700"
+              className="inline-block bg-indigo-600 text-white px-5 py-2.5 sm:px-6 sm:py-3 rounded-md hover:bg-indigo-700 text-sm sm:text-base"
             >
               Create Post
             </Link>
           </div>
         ) : (
-          <div className="grid gap-6 md:grid-cols-2 lg:grid-cols-3">
+          <div className="grid gap-4 sm:gap-6 grid-cols-1 md:grid-cols-2 lg:grid-cols-3">
             {posts.map((post) => (
-              <div key={post.id} className="bg-white rounded-lg shadow p-6">
-                <div className="flex justify-between items-start mb-2">
-                  <h3 className="text-lg font-semibold text-gray-900">
+              <div key={post.id} className="bg-white rounded-lg shadow p-4 sm:p-6">
+                <div className="flex justify-between items-start gap-2 mb-2">
+                  <h3 className="text-base sm:text-lg font-semibold text-gray-900 line-clamp-2 min-w-0">
                     {post.title || 'Untitled'}
                   </h3>
                   <span
-                    className={`px-2 py-1 text-xs rounded ${
+                    className={`px-2 py-1 text-xs rounded flex-shrink-0 ${
                       post.status === 'published'
                         ? 'bg-green-100 text-green-800'
                         : 'bg-gray-100 text-gray-800'
@@ -115,10 +117,10 @@ export default function Dashboard() {
                 <p className="text-sm text-gray-500 mb-4">
                   {new Date(post.updated_at).toLocaleDateString()}
                 </p>
-                <div className="flex space-x-2">
+                <div className="flex flex-wrap gap-2">
                   <Link
                     to={`/editor/${post.id}`}
-                    className="flex-1 text-center bg-indigo-600 text-white px-4 py-2 rounded-md hover:bg-indigo-700 text-sm"
+                    className="flex-1 min-w-[calc(50%-4px)] sm:min-w-0 text-center bg-indigo-600 text-white px-3 py-2 rounded-md hover:bg-indigo-700 text-sm"
                   >
                     Edit
                   </Link>
@@ -126,20 +128,20 @@ export default function Dashboard() {
                     <Link
                       to={`/blog/${post.slug}`}
                       target="_blank"
-                      className="flex-1 text-center bg-gray-200 text-gray-700 px-4 py-2 rounded-md hover:bg-gray-300 text-sm"
+                      className="flex-1 min-w-[calc(50%-4px)] sm:min-w-0 text-center bg-gray-200 text-gray-700 px-3 py-2 rounded-md hover:bg-gray-300 text-sm"
                     >
                       View
                     </Link>
                   )}
                   <button
                     onClick={() => handlePublish(post)}
-                    className="px-4 py-2 bg-gray-200 text-gray-700 rounded-md hover:bg-gray-300 text-sm"
+                    className="flex-1 min-w-[calc(50%-4px)] sm:min-w-0 px-3 py-2 bg-gray-200 text-gray-700 rounded-md hover:bg-gray-300 text-sm"
                   >
                     {post.status === 'published' ? 'Unpublish' : 'Publish'}
                   </button>
                   <button
                     onClick={() => handleDelete(post.id)}
-                    className="px-4 py-2 bg-red-600 text-white rounded-md hover:bg-red-700 text-sm"
+                    className="flex-1 min-w-[calc(50%-4px)] sm:min-w-0 px-3 py-2 bg-red-600 text-white rounded-md hover:bg-red-700 text-sm"
                   >
                     Delete
                   </button>
diff --git a/frontend/src/pages/Editor.jsx b/frontend/src/pages/Editor.jsx
index 405d854..65466e4 100644
--- a/frontend/src/pages/Editor.jsx
+++ b/frontend/src/pages/Editor.jsx
@@ -164,30 +164,31 @@ export default function EditorPage() {
 
   return (
     <div className="min-h-screen bg-gray-100 flex flex-col">
-      {/* Top bar */}
+      {/* Top bar - responsive */}
       <header className="bg-white border-b border-gray-200 flex-shrink-0">
-        <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
-          <div className="flex justify-between items-center h-14">
+        <div className="max-w-7xl mx-auto px-3 sm:px-6 lg:px-8">
+          <div className="flex flex-wrap items-center justify-between gap-2 min-h-14 py-2 sm:py-0">
             <button
               onClick={() => navigate('/dashboard')}
-              className="text-gray-600 hover:text-gray-900 font-medium"
+              className="text-gray-600 hover:text-gray-900 font-medium text-sm sm:text-base order-1"
             >
-              ← Back to Dashboard
+              <span className="hidden sm:inline">← Back to Dashboard</span>
+              <span className="sm:hidden">← Back</span>
             </button>
-            <div className="flex items-center gap-4">
+            <div className="flex items-center gap-2 sm:gap-4 order-2 flex-shrink-0">
               {saving && (
-                <span className="text-sm text-amber-600 font-medium">Saving...</span>
+                <span className="text-xs sm:text-sm text-amber-600 font-medium whitespace-nowrap">Saving...</span>
               )}
               <button
                 onClick={() => setShowPreview(!showPreview)}
-                className={`flex items-center gap-2 px-3 py-1.5 rounded-lg text-sm font-medium transition-colors ${
+                className={`flex items-center gap-1.5 sm:gap-2 px-2.5 py-1.5 sm:px-3 rounded-lg text-xs sm:text-sm font-medium transition-colors ${
                   showPreview
                     ? 'bg-indigo-100 text-indigo-700'
                     : 'text-gray-600 hover:bg-gray-100'
                 }`}
                 title="Toggle Mobile Preview"
               >
-                <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <svg className="w-4 h-4 sm:w-5 sm:h-5 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                   <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 18h.01M8 21h8a2 2 0 002-2V5a2 2 0 00-2-2H8a2 2 0 00-2 2v14a2 2 0 002 2z" />
                 </svg>
                 Preview
@@ -195,7 +196,7 @@ export default function EditorPage() {
               <button
                 onClick={handlePublish}
                 disabled={saving}
-                className="bg-indigo-600 text-white px-5 py-2 rounded-lg font-medium hover:bg-indigo-700 disabled:opacity-50 disabled:cursor-not-allowed"
+                className="bg-indigo-600 text-white px-3 py-1.5 sm:px-5 sm:py-2 rounded-lg font-medium hover:bg-indigo-700 disabled:opacity-50 disabled:cursor-not-allowed text-sm whitespace-nowrap"
               >
                 Publish
               </button>
@@ -204,24 +205,24 @@ export default function EditorPage() {
         </div>
       </header>
 
-      <div className="flex-1 flex overflow-hidden">
+      <div className="flex-1 flex flex-col lg:flex-row overflow-hidden">
         {/* Main Editor Section */}
-        <main className={`flex-1 overflow-y-auto transition-all duration-300`}>
-          <div className="max-w-4xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
+        <main className={`flex-1 overflow-y-auto transition-all duration-300 min-h-0 ${showPreview ? 'lg:border-r lg:border-gray-200' : ''}`}>
+          <div className="max-w-4xl mx-auto px-3 sm:px-6 lg:px-8 py-4 sm:py-8">
             {/* Card-style editor block */}
-            <div className="bg-white rounded-xl shadow-sm border border-gray-200 overflow-hidden">
-              <div className="px-6 pt-6 pb-2">
+            <div className="bg-white rounded-xl shadow-sm border border-gray-200 overflow-visible">
+              <div className="px-4 sm:px-6 pt-4 sm:pt-6 pb-2">
                 <label className="block text-xs font-medium text-gray-500 uppercase tracking-wide mb-2">Title</label>
                 <input
                   type="text"
                   placeholder="Enter post title..."
                   value={title}
                   onChange={(e) => setTitle(e.target.value)}
-                  className="w-full text-2xl font-bold p-2 border-0 border-b-2 border-transparent hover:border-gray-200 focus:outline-none focus:border-indigo-500 bg-transparent transition-colors"
+                  className="w-full text-xl sm:text-2xl font-bold p-2 border-0 border-b-2 border-transparent hover:border-gray-200 focus:outline-none focus:border-indigo-500 bg-transparent transition-colors"
                 />
               </div>
               <div className="px-2">
-                <label className="block text-xs font-medium text-gray-500 uppercase tracking-wide px-4 pt-4 pb-1">Content</label>
+                <label className="block text-xs font-medium text-gray-500 uppercase tracking-wide px-2 sm:px-4 pt-4 pb-1">Content</label>
                 <Editor
                   content={content}
                   onChange={setContent}
@@ -233,23 +234,31 @@ export default function EditorPage() {
           </div>
         </main>
 
-        {/* Mobile Preview Sidebar */}
-        <aside
-          className={`bg-gray-50 border-l border-gray-200 transition-all duration-300 overflow-hidden flex-shrink-0 ${
-            showPreview ? 'w-[380px]' : 'w-0'
-          }`}
-        >
-          {showPreview && (
-            <div className="h-full p-4">
-              <div className="text-xs font-medium text-gray-500 uppercase tracking-wide mb-3">Mobile Preview</div>
+        {/* Mobile Preview - sidebar on lg+, full-width panel on smaller screens */}
+        {showPreview && (
+          <aside className="bg-gray-50 border-t lg:border-t-0 lg:border-l border-gray-200 flex-shrink-0 w-full lg:w-[380px] flex flex-col min-h-[320px] lg:min-h-0 lg:max-h-full overflow-hidden">
+            <div className="flex-1 min-h-0 p-3 sm:p-4 overflow-auto">
+              <div className="flex items-center justify-between mb-3">
+                <span className="text-xs font-medium text-gray-500 uppercase tracking-wide">Mobile Preview</span>
+                <button
+                  type="button"
+                  onClick={() => setShowPreview(false)}
+                  className="lg:hidden text-gray-500 hover:text-gray-700 p-1 rounded"
+                  aria-label="Close preview"
+                >
+                  <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
+                  </svg>
+                </button>
+              </div>
               <MobilePreview
                 title={title}
                 content={content}
                 createdAt={createdAt}
               />
             </div>
-          )}
-        </aside>
+          </aside>
+        )}
       </div>
     </div>
   )
diff --git a/frontend/src/pages/Login.jsx b/frontend/src/pages/Login.jsx
index 39e693c..5ffa907 100644
--- a/frontend/src/pages/Login.jsx
+++ b/frontend/src/pages/Login.jsx
@@ -110,21 +110,21 @@ export default function Login() {
               </p>
             </div>
 
-            <div className="flex space-x-4">
+            <div className="flex flex-col-reverse sm:flex-row gap-3 sm:gap-4">
               <button
                 type="button"
                 onClick={() => {
                   setStep('phone')
                   setOtp('')
                 }}
-                className="flex-1 py-2 px-4 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50"
+                className="flex-1 w-full sm:w-auto py-2 px-4 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50"
               >
                 Change Number
               </button>
               <button
                 type="submit"
                 disabled={loading || otp.length !== 4}
-                className="flex-1 py-2 px-4 border border-transparent text-sm font-medium rounded-md text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500 disabled:opacity-50"
+                className="flex-1 w-full sm:w-auto py-2 px-4 border border-transparent text-sm font-medium rounded-md text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500 disabled:opacity-50"
               >
                 {loading ? 'Verifying...' : 'Verify OTP'}
               </button>