diff --git a/changelog.md b/changelog.md
index c4b999f..fbd675a 100644
--- a/changelog.md
+++ b/changelog.md
@@ -4,6 +4,39 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [1.25.1] - 2025-12-24
+
+### Changed
+
+- Logo moved to top navigation header on all pages
+  - Logo now appears in the header bar (top-left) on blog posts, pages, and blog page
+  - Logo is separate from back button and navigation links
+  - Reads from `siteConfig.innerPageLogo` and `siteConfig.logo` configuration
+  - Works consistently across all pages (with and without sidebar)
+  - Mobile responsive: logo positioned on left in header
+
+### Technical
+
+- `src/components/Layout.tsx`: Added logo to top navigation header, reads from siteConfig
+- `src/pages/Post.tsx`: Removed logo from post navigation (was next to back button)
+- `src/pages/Blog.tsx`: Removed logo from blog navigation
+- `src/styles/global.css`: Added `.top-nav-logo-link` and `.top-nav-logo` styles, updated `.top-nav` layout to span left-to-right, removed old `.inner-page-logo` styles
+
+## [1.25.0] - 2025-12-24
+
+### Changed
+
+- Sidebar styling updated to match Cursor docs style
+  - Sidebar now has alternate background color (`--sidebar-alt-bg`) for visual separation
+  - Vertical border line on right side of sidebar
+  - Theme-aware colors for all four themes (dark, light, tan, cloud)
+  - Sidebar width increased to 240px for better readability
+  - Mobile responsive: sidebar hidden on screens below 1024px
+
+### Technical
+
+- `src/styles/global.css`: Added `--sidebar-alt-bg` CSS variables for each theme, updated `.post-sidebar-wrapper` with alternate background and right border, adjusted grid layout for wider sidebar
+
 ## [1.24.9] - 2025-12-24
 
 ### Added
diff --git a/files.md b/files.md
index 6f70a98..d9733d0 100644
--- a/files.md
+++ b/files.md
@@ -40,8 +40,8 @@ A brief description of each file in the codebase.
 | File        | Description                                                       |
 | ----------- | ----------------------------------------------------------------- |
 | `Home.tsx`  | Landing page with featured content and optional post list         |
-| `Blog.tsx`  | Dedicated blog page with post list or card grid view (configurable via siteConfig.blogPage, supports view toggle) |
-| `Post.tsx`  | Individual blog post or page view with optional sidebar layout (update SITE_URL/SITE_NAME when forking) |
+| `Blog.tsx`  | Dedicated blog page with post list or card grid view (configurable via siteConfig.blogPage, supports view toggle). Includes back button in navigation |
+| `Post.tsx`  | Individual blog post or page view with optional sidebar layout. Includes back button and CopyPageDropdown in post navigation (update SITE_URL/SITE_NAME when forking) |
 | `Stats.tsx` | Real-time analytics dashboard with visitor stats and GitHub stars |
 | `Write.tsx` | Three-column markdown writing page with Cursor docs-style UI, frontmatter reference with copy buttons, theme toggle, font switcher (serif/sans-serif), and localStorage persistence (not linked in nav) |
 
@@ -49,7 +49,7 @@ A brief description of each file in the codebase.
 
 | File                      | Description                                                |
 | ------------------------- | ---------------------------------------------------------- |
-| `Layout.tsx`              | Page wrapper with search button, theme toggle, mobile menu (left-aligned on mobile), and scroll-to-top. Combines Blog link, hardcoded nav items, and markdown pages for navigation |
+| `Layout.tsx`              | Page wrapper with logo in header (top-left), search button, theme toggle, mobile menu (left-aligned on mobile), and scroll-to-top. Combines Blog link, hardcoded nav items, and markdown pages for navigation. Logo reads from siteConfig.innerPageLogo |
 | `ThemeToggle.tsx`         | Theme switcher (dark/light/tan/cloud)                      |
 | `PostList.tsx`            | Year-grouped blog post list or card grid (supports list/cards view modes) |
 | `BlogPost.tsx`            | Markdown renderer with syntax highlighting and collapsible sections (details/summary) |
@@ -86,7 +86,7 @@ A brief description of each file in the codebase.
 
 | File         | Description                                                                          |
 | ------------ | ------------------------------------------------------------------------------------ |
-| `global.css` | Global CSS with theme variables, centralized font-size CSS variables for all themes |
+| `global.css` | Global CSS with theme variables, centralized font-size CSS variables for all themes, sidebar styling with alternate background colors and right border for docs-style layout |
 
 ## Convex Backend (`convex/`)
 
diff --git a/src/components/Layout.tsx b/src/components/Layout.tsx
index 4d13b23..2ab91ea 100644
--- a/src/components/Layout.tsx
+++ b/src/components/Layout.tsx
@@ -134,8 +134,20 @@ export default function Layout({ children }: LayoutProps) {
 
   return (
     <div className="layout">
-      {/* Top navigation bar with page links, search, and theme toggle */}
+      {/* Top navigation bar with logo, page links, search, and theme toggle */}
       <div className="top-nav">
+        {/* Logo on the left (visible on all pages) */}
+        {siteConfig.innerPageLogo.enabled && siteConfig.logo && (
+          <Link to="/" className="top-nav-logo-link">
+            <img
+              src={siteConfig.logo}
+              alt={siteConfig.name}
+              className="top-nav-logo"
+              style={{ height: siteConfig.innerPageLogo.size }}
+            />
+          </Link>
+        )}
+
         {/* Mobile left controls: hamburger, search, theme (visible on mobile/tablet only) */}
         <div className="mobile-nav-controls">
           {/* Hamburger button for mobile menu */}
diff --git a/src/pages/Blog.tsx b/src/pages/Blog.tsx
index 1b9f2f5..dcd378e 100644
--- a/src/pages/Blog.tsx
+++ b/src/pages/Blog.tsx
@@ -1,5 +1,5 @@
 import { useState, useEffect } from "react";
-import { Link, useNavigate } from "react-router-dom";
+import { useNavigate } from "react-router-dom";
 import { useQuery } from "convex/react";
 import { api } from "../../convex/_generated/api";
 import PostList from "../components/PostList";
@@ -43,23 +43,12 @@ export default function Blog() {
 
   return (
     <div className="blog-page">
-      {/* Navigation with back button and optional logo */}
+      {/* Navigation with back button */}
       <nav className="post-nav">
         <button onClick={() => navigate("/")} className="back-button">
           <ArrowLeft size={16} />
           <span>Back</span>
         </button>
-        {/* Inner page logo (desktop: left, mobile: right) */}
-        {siteConfig.innerPageLogo.enabled && siteConfig.logo && (
-          <Link to="/" className="inner-page-logo-link">
-            <img
-              src={siteConfig.logo}
-              alt={siteConfig.name}
-              className="inner-page-logo"
-              style={{ height: siteConfig.innerPageLogo.size }}
-            />
-          </Link>
-        )}
       </nav>
 
       {/* Blog page header */}
diff --git a/src/pages/Post.tsx b/src/pages/Post.tsx
index 2f9dc19..0571d24 100644
--- a/src/pages/Post.tsx
+++ b/src/pages/Post.tsx
@@ -6,7 +6,6 @@ import CopyPageDropdown from "../components/CopyPageDropdown";
 import PageSidebar from "../components/PageSidebar";
 import { extractHeadings } from "../utils/extractHeadings";
 import { useSidebar } from "../context/SidebarContext";
-import siteConfig from "../config/siteConfig";
 import { format, parseISO } from "date-fns";
 import { ArrowLeft, Link as LinkIcon, Twitter, Rss } from "lucide-react";
 import { useState, useEffect } from "react";
@@ -186,17 +185,6 @@ export default function Post() {
             <ArrowLeft size={16} />
             <span>Back</span>
           </button>
-          {/* Inner page logo (desktop: left, mobile: right) */}
-          {siteConfig.innerPageLogo.enabled && siteConfig.logo && (
-            <Link to="/" className="inner-page-logo-link">
-              <img
-                src={siteConfig.logo}
-                alt={siteConfig.name}
-                className="inner-page-logo"
-                style={{ height: siteConfig.innerPageLogo.size }}
-              />
-            </Link>
-          )}
           {/* CopyPageDropdown in nav */}
           <CopyPageDropdown
             title={page.title}
@@ -289,17 +277,6 @@ export default function Post() {
           <ArrowLeft size={16} />
           <span>Back</span>
         </button>
-        {/* Inner page logo (desktop: left, mobile: right) */}
-        {siteConfig.innerPageLogo.enabled && siteConfig.logo && (
-          <Link to="/" className="inner-page-logo-link">
-            <img
-              src={siteConfig.logo}
-              alt={siteConfig.name}
-              className="inner-page-logo"
-              style={{ height: siteConfig.innerPageLogo.size }}
-            />
-          </Link>
-        )}
         {/* Copy page dropdown for sharing with full metadata */}
         <CopyPageDropdown
           title={post.title}
diff --git a/src/styles/global.css b/src/styles/global.css
index 63ac440..e66924f 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -181,10 +181,12 @@
   --bg-primary: #111111;
   --bg-secondary: #1a1a1a;
   --bg-hover: #252525;
+  --bg-sidebar: #0d0d0d;
   --text-primary: #fafafa;
   --text-secondary: #a1a1a1;
   --text-muted: #6b6b6b;
   --border-color: #2a2a2a;
+  --border-sidebar: #2a2a2a;
   --accent: #fafafa;
   --accent-hover: #e5e5e5;
   --link-color: #fafafa;
@@ -200,10 +202,12 @@
   --bg-primary: #ffffff;
   --bg-secondary: #fafafa;
   --bg-hover: #f5f5f5;
+  --bg-sidebar: #f8f8f8;
   --text-primary: #111111;
   --text-secondary: #6b6b6b;
   --text-muted: #a1a1a1;
   --border-color: #e5e5e5;
+  --border-sidebar: #e5e5e5;
   --accent: #111111;
   --accent-hover: #333333;
   --link-color: #111111;
@@ -219,10 +223,12 @@
   --bg-primary: #faf8f5;
   --bg-secondary: #f5f3f0;
   --bg-hover: #ebe9e6;
+  --bg-sidebar: #f5f2ed;
   --text-primary: #1a1a1a;
   --text-secondary: #6b6b6b;
   --text-muted: #999999;
   --border-color: #e6e4e1;
+  --border-sidebar: #e0ddd8;
   --accent: #8b7355;
   --accent-hover: #735f47;
   --link-color: #8b7355;
@@ -239,10 +245,12 @@
   --bg-primary: #f5f5f5;
   --bg-secondary: #ebebeb;
   --bg-hover: #e0e0e0;
+  --bg-sidebar: #eeeeee;
   --text-primary: #171717;
   --text-secondary: #525252;
   --text-muted: #737373;
   --border-color: #d4d4d4;
+  --border-sidebar: #d4d4d4;
   --accent: #171717;
   --accent-hover: #404040;
   --link-color: #171717;
@@ -318,7 +326,8 @@ body {
 /* Top navigation bar */
 .top-nav {
   position: fixed;
-  top: 10px;
+  top: 0px;
+  left: 13px;
   right: 13px;
   z-index: 100;
   display: flex;
@@ -330,11 +339,30 @@ body {
   border-radius: 8px;
 }
 
+/* Logo in top navigation */
+.top-nav-logo-link {
+  display: flex;
+  align-items: center;
+  flex-shrink: 0;
+  transition: opacity 0.2s ease;
+}
+
+.top-nav-logo-link:hover {
+  opacity: 0.7;
+}
+
+.top-nav-logo {
+  width: auto;
+  display: block;
+  height: 28px;
+}
+
 /* Mobile nav controls (search, theme, hamburger) - shown on left on mobile */
 .mobile-nav-controls {
   display: none;
   align-items: center;
   gap: 4px;
+  margin-left: auto;
 }
 
 /* Desktop controls (search, theme) - shown on right on desktop */
@@ -349,6 +377,7 @@ body {
   display: flex;
   align-items: center;
   gap: 16px;
+  margin-left: auto;
 }
 
 .page-nav-link {
@@ -604,6 +633,8 @@ body {
   max-width: 1400px;
   margin-left: calc(-1 * (min(100vw - 48px, 1400px) - 680px) / 2);
   position: relative;
+  /* Add left padding to align content with sidebar edge */
+  padding-left: 24px;
 }
 
 .post-nav {
@@ -613,55 +644,15 @@ body {
   margin-bottom: 40px;
 }
 
-/* Inner page logo styles (blog page, posts, pages) */
-/* Desktop: logo first on the left, back button after */
-.inner-page-logo-link {
-  display: flex;
-  align-items: center;
-  order: 0;
-}
-
-.inner-page-logo {
-  width: auto;
-  display: block;
-  transition: opacity 0.2s ease;
-}
-
-.inner-page-logo-link:hover .inner-page-logo {
-  opacity: 0.7;
-}
-
-/* Nav layout adjustments for logo */
+/* Nav layout adjustments */
 .post-nav .back-button {
-  order: 1;
-  margin-left: 16px;
+  margin-left: 0;
 }
 
 .post-nav .copy-page-dropdown {
-  order: 2;
   margin-left: auto;
 }
 
-/* Mobile: logo on left, back button position unchanged */
-@media (max-width: 768px) {
-  .inner-page-logo-link {
-    order: 0;
-  }
-
-  .inner-page-logo {
-    height: 24px !important; /* Smaller on mobile to keep header compact */
-  }
-
-  .post-nav .back-button {
-    margin-left: 12px;
-  }
-
-  .post-nav .copy-page-dropdown {
-    order: 2;
-    margin-left: auto;
-  }
-}
-
 /* Shift CopyPageDropdown 7px to the left for sidebar layouts */
 .post-nav-with-sidebar .copy-page-dropdown {
   margin-right: 35px;
@@ -818,7 +809,7 @@ body {
   border: none;
   font-size: var(--font-size-back-button);
   cursor: pointer;
-  padding: 8px 12px;
+  padding: 8px 0px;
   margin-left: -12px;
   border-radius: 6px;
   transition:
@@ -839,36 +830,49 @@ body {
   margin-bottom: 48px;
 }
 
-/* Sidebar layout for pages - two-column grid */
+/* Sidebar layout for pages - two-column grid with docs-style sidebar */
 .post-content-with-sidebar {
   display: grid;
-  grid-template-columns: 220px 1fr;
-  gap: 48px;
+  grid-template-columns: 240px 1fr;
+  gap: 0;
   align-items: flex-start;
   width: 100%;
 }
 
+/* Sidebar wrapper - docs-style with alt background and right border */
 .post-sidebar-wrapper {
   position: sticky;
-  top: 100px;
+  top: 80px;
   align-self: flex-start;
-  max-height: calc(100vh - 120px);
+  max-height: calc(100vh - 100px);
   overflow-y: auto;
+  background-color: var(--bg-sidebar);
+  border-right: 1px solid var(--border-sidebar);
+  margin-left: -24px;
+  padding-left: 24px;
+  padding-top: 24px;
+  padding-bottom: 24px;
+  margin-top: -24px;
+  /* Extend background to fill height */
+  min-height: calc(100vh - 80px);
 }
 
-/* Left sidebar - flush left */
+/* Left sidebar - flush left with internal padding */
 .post-sidebar-left {
-  padding-right: 16px;
+  padding-right: 24px;
 }
 
-/* Content area - flexible width */
+/* Content area - flexible width with left padding for gap from sidebar */
 .post-article-with-sidebar {
   min-width: 0; /* Prevent overflow */
   max-width: 800px;
+  padding-left: 48px;
+  padding-top: 0;
 }
 
+/* Page sidebar TOC navigation */
 .page-sidebar {
-  padding-right: 16px;
+  padding-right: 8px;
 }
 
 .page-sidebar-list {
@@ -994,17 +998,28 @@ body {
     display: none;
   }
 
+  /* Reset sidebar styles for mobile (when shown in hamburger) */
   .post-sidebar-left {
     position: static;
     width: 100%;
     max-height: none;
     padding-right: 0;
-    border-bottom: 1px solid var(--border-color);
+    padding-left: 0;
+    padding-top: 0;
     padding-bottom: 16px;
+    margin-left: 0;
+    margin-top: 0;
+    min-height: auto;
+    background-color: transparent;
+    border-right: none;
+    border-bottom: 1px solid var(--border-color);
   }
 
+  /* Reset content area padding on mobile */
   .post-article-with-sidebar {
     max-width: 100%;
+    padding-left: 0;
+    padding-top: 0;
   }
 
   .page-sidebar {
@@ -1082,7 +1097,7 @@ body {
 .post-author-image {
   width: 28px;
   height: 28px;
-  border-radius: 50%;
+  border-radius: 10%;
   object-fit: cover;
   border: 1px solid var(--border-color);
 }
@@ -1667,11 +1682,16 @@ body {
 
   .top-nav {
     top: 6px;
-    right: 16px;
-    gap: 12px;
+    left: 6px;
+    right: 6px;
+    gap: 8px;
     padding: 6px 10px;
   }
 
+  .top-nav-logo {
+    height: 24px;
+  }
+
   .page-nav {
     gap: 12px;
   }