diff --git a/src/index.css b/src/index.css
index 64767f60..a4463aa3 100644
--- a/src/index.css
+++ b/src/index.css
@@ -1,299 +1,19 @@
-:root {
-  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
-  line-height: 1.5;
-  font-weight: 400;
+@import './styles/base/variables.css';
+@import './styles/base/global.css';
+@import './styles/layout/app.css';
+@import './styles/layout/sidebar.css';
+@import './styles/layout/highlights.css';
+@import './styles/components/icon-button.css';
+@import './styles/components/profile.css';
+@import './styles/components/cards.css';
+@import './styles/components/modals.css';
+@import './styles/components/toast.css';
+@import './styles/components/forms.css';
+@import './styles/components/reader.css';
+@import './styles/components/settings.css';
+@import './styles/utils/animations.css';
+@import './styles/utils/utilities.css';
 
-  color-scheme: light dark;
-  color: rgba(255, 255, 255, 0.87);
-  background-color: #242424;
-
-  font-synthesis: none;
-  text-rendering: optimizeLegibility;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-  -webkit-text-size-adjust: 100%;
-  
-  --reading-font: 'Source Serif 4', serif;
-  --reading-font-size: 18px;
-  /* Layout variables */
-  --sidebar-width: 320px;
-  --sidebar-collapsed-width: 64px;
-  --highlights-width: 360px;
-  --highlights-collapsed-width: 56px;
-  --main-max-width: 900px;
-  --main-horizontal-padding: 1rem;
-  
-  /* Mobile breakpoints */
-  --mobile-breakpoint: 768px;
-  --tablet-breakpoint: 1024px;
-  
-  /* Mobile touch target minimum */
-  --min-touch-target: 44px;
-  
-  /* Safe area insets for notched devices */
-  --safe-area-top: env(safe-area-inset-top, 0px);
-  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
-  --safe-area-left: env(safe-area-inset-left, 0px);
-  --safe-area-right: env(safe-area-inset-right, 0px);
-}
-
-body {
-  margin: 0;
-  min-width: 320px;
-  min-height: 100vh;
-  overscroll-behavior: none;
-  -webkit-overflow-scrolling: touch;
-}
-
-/* Use dynamic viewport height if supported */
-@supports (height: 100dvh) {
-  body {
-    min-height: 100dvh;
-  }
-}
-
-body.mobile-sidebar-open {
-  overflow: hidden;
-  position: fixed;
-  width: 100%;
-}
-
-#root {
-  max-width: none;
-  margin: 0;
-  padding: 1rem;
-}
-
-@media (max-width: 768px) {
-  #root {
-    padding: 0;
-  }
-}
-
-.app {
-  text-align: center;
-  position: relative;
-}
-
-.app header {
-  margin-bottom: 2rem;
-}
-
-.app header h1 {
-  font-size: 2.5rem;
-  margin: 0;
-  color: #646cff;
-}
-
-.app header p {
-  margin: 0.5rem 0 0 0;
-  color: #888;
-}
-
-/* Bookmarks Styles */
-.bookmarks-container {
-  background: #1a1a1a;
-  border: 1px solid #333;
-  border-radius: 12px;
-  display: flex;
-  flex-direction: column;
-  height: 100%;
-  overflow: hidden;
-  text-align: left;
-  padding: 0;
-}
-
-.bookmarks-container .view-mode-controls {
-  margin-top: auto;
-  padding: 1rem;
-  border-top: 1px solid #333;
-  background: transparent;
-  border-radius: 0;
-}
-
-.bookmarks-container .bookmarks-list {
-  padding: 0.5rem;
-  overflow-y: auto;
-  overflow-x: hidden;
-  flex: 1;
-  width: 100%;
-  max-width: 100%;
-  box-sizing: border-box;
-}
-
-.sidebar-header-bar {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  gap: 0.75rem;
-  padding: 0.75rem 1rem;
-  background: #1a1a1a;
-  border: 1px solid #333;
-  border-radius: 12px 12px 0 0;
-  margin-bottom: 0;
-}
-
-.sidebar-header-right {
-  display: flex;
-  align-items: center;
-  gap: 0.5rem;
-  margin-left: auto;
-}
-
-.mobile-hamburger-btn {
-  display: none;
-  position: fixed;
-  top: calc(1rem + env(safe-area-inset-top));
-  left: calc(1rem + env(safe-area-inset-left));
-  z-index: 900;
-  background: #2a2a2a;
-  border: 1px solid #444;
-  border-radius: 8px;
-  color: #ddd;
-  width: var(--min-touch-target);
-  height: var(--min-touch-target);
-  align-items: center;
-  justify-content: center;
-  cursor: pointer;
-  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
-  transition: transform 0.2s ease, opacity 0.3s ease, visibility 0.3s ease;
-}
-
-.mobile-hamburger-btn.hidden {
-  opacity: 0;
-  visibility: hidden;
-  pointer-events: none;
-}
-
-.mobile-hamburger-btn.visible {
-  opacity: 1;
-  visibility: visible;
-}
-
-.mobile-hamburger-btn:active {
-  transform: scale(0.95);
-}
-
-.mobile-close-btn {
-  display: none;
-}
-
-@media (max-width: 768px) {
-  .mobile-hamburger-btn {
-    display: flex;
-  }
-  
-  .sidebar-header-bar .toggle-sidebar-btn {
-    display: none;
-  }
-  
-  .mobile-close-btn {
-    display: flex;
-  }
-}
-
-.view-mode-controls {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  gap: 0.5rem;
-}
-
-.profile-avatar {
-  width: 33px;
-  height: 33px;
-  border-radius: 6px;
-  overflow: hidden;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  background: #2a2a2a;
-  border: 1px solid #444;
-  flex-shrink: 0;
-  color: #ddd;
-  box-sizing: border-box;
-}
-
-.profile-avatar img {
-  width: 100%;
-  height: 100%;
-  object-fit: cover;
-}
-
-.profile-avatar svg {
-  font-size: 1.25rem;
-}
-
-.sidebar-header-bar .toggle-sidebar-btn {
-  background: transparent;
-  color: #ddd;
-  border: 1px solid #444;
-  padding: 0;
-  border-radius: 6px;
-  cursor: pointer;
-  transition: all 0.2s ease;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  width: 33px;
-  height: 33px;
-  flex-shrink: 0;
-  box-sizing: border-box;
-}
-
-.sidebar-header-bar .toggle-sidebar-btn:hover {
-  background: #2a2a2a;
-  color: #fff;
-}
-
-.sidebar-header-bar .toggle-sidebar-btn:active {
-  transform: translateY(1px);
-}
-
-.bookmarks-container.collapsed {
-  display: flex;
-  align-items: flex-start;
-  justify-content: flex-start;
-  padding: 0;
-  background: transparent;
-  border: none;
-}
-
-.bookmarks-container.collapsed .toggle-sidebar-btn {
-  background: #2a2a2a;
-  color: #ddd;
-  border: none;
-  padding: 0;
-  border-radius: 0;
-  cursor: pointer;
-  transition: all 0.2s ease;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  width: 48px;
-  height: 36px;
-  flex-shrink: 0;
-}
-
-.bookmarks-container.collapsed .toggle-sidebar-btn:hover {
-  background: #333;
-  color: #fff;
-}
-
-.bookmarks-container.collapsed .toggle-sidebar-btn:active {
-  transform: translateY(1px);
-}
-
-.bookmarks-container.collapsed .toggle-sidebar-btn.with-icon {
-  width: auto;
-  padding: 0 0.5rem;
-  gap: 0.5rem;
-}
-
-.bookmarks-container.collapsed .toggle-sidebar-btn .glow-blue {
-  color: #646cff;
-  filter: drop-shadow(0 0 4px rgba(100, 108, 255, 0.6));
-}
 
 .user-info {
   margin: 0.5rem 0 0 0;
@@ -360,55 +80,6 @@ body.mobile-sidebar-open {
   background: #218838;
 }
 
-/* Generic IconButton styling */
-.icon-button {
-  display: inline-flex;
-  align-items: center;
-  justify-content: center;
-  border: 1px solid #444;
-  border-radius: 6px;
-  background: #2a2a2a;
-  color: #ddd;
-  cursor: pointer;
-  min-width: 33px;
-  min-height: 33px;
-  padding: 0;
-  box-sizing: border-box;
-}
-
-.icon-button:hover { background: #333; }
-.icon-button:active { transform: translateY(1px); }
-
-.icon-button.primary { background: #646cff; color: white; border-color: #646cff; }
-.icon-button.primary:hover { filter: brightness(1.05); }
-
-.icon-button.success { background: #28a745; color: white; border-color: #28a745; }
-.icon-button.success:hover { filter: brightness(1.05); }
-
-.icon-button.ghost { background: #2a2a2a; }
-
-/* Mobile touch target improvements */
-@media (max-width: 768px) {
-  .icon-button {
-    min-width: var(--min-touch-target);
-    min-height: var(--min-touch-target);
-  }
-}
-
-/* Disable hover effects on touch devices */
-@media (pointer: coarse) {
-  .icon-button:hover {
-    background: #2a2a2a;
-  }
-  
-  .icon-button.ghost:hover {
-    background: #2a2a2a;
-  }
-  
-  .icon-button:active {
-    background: #333;
-  }
-}
 
 .bookmark-events {
   margin: 1rem 0;
diff --git a/src/styles/base/global.css b/src/styles/base/global.css
index e69de29b..9b9fdd04 100644
--- a/src/styles/base/global.css
+++ b/src/styles/base/global.css
@@ -0,0 +1,68 @@
+/* Global element styles and app container */
+body {
+  margin: 0;
+  min-width: 320px;
+  min-height: 100vh;
+  overscroll-behavior: none;
+  -webkit-overflow-scrolling: touch;
+}
+
+/* Use dynamic viewport height if supported */
+@supports (height: 100dvh) {
+  body {
+    min-height: 100dvh;
+  }
+}
+
+body.mobile-sidebar-open {
+  overflow: hidden;
+  position: fixed;
+  width: 100%;
+}
+
+#root {
+  max-width: none;
+  margin: 0;
+  padding: 1rem;
+}
+
+@media (max-width: 768px) {
+  #root {
+    padding: 0;
+  }
+}
+
+.app {
+  text-align: center;
+  position: relative;
+}
+
+.app header {
+  margin-bottom: 2rem;
+}
+
+.app header h1 {
+  font-size: 2.5rem;
+  margin: 0;
+  color: #646cff;
+}
+
+.app header p {
+  margin: 0.5rem 0 0 0;
+  color: #888;
+}
+
+.loading {
+  text-align: center;
+  padding: 2rem;
+  color: #ccc;
+}
+
+.loading {
+  flex: 1;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+
diff --git a/src/styles/base/variables.css b/src/styles/base/variables.css
index e69de29b..d24b8e0e 100644
--- a/src/styles/base/variables.css
+++ b/src/styles/base/variables.css
@@ -0,0 +1,48 @@
+/* CSS variables and color-scheme */
+:root {
+  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
+  line-height: 1.5;
+  font-weight: 400;
+
+  color-scheme: light dark;
+  color: rgba(255, 255, 255, 0.87);
+  background-color: #242424;
+
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  -webkit-text-size-adjust: 100%;
+  
+  --reading-font: 'Source Serif 4', serif;
+  --reading-font-size: 18px;
+  /* Layout variables */
+  --sidebar-width: 320px;
+  --sidebar-collapsed-width: 64px;
+  --highlights-width: 360px;
+  --highlights-collapsed-width: 56px;
+  --main-max-width: 900px;
+  --main-horizontal-padding: 1rem;
+  
+  /* Mobile breakpoints */
+  --mobile-breakpoint: 768px;
+  --tablet-breakpoint: 1024px;
+  
+  /* Mobile touch target minimum */
+  --min-touch-target: 44px;
+  
+  /* Safe area insets for notched devices */
+  --safe-area-top: env(safe-area-inset-top, 0px);
+  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
+  --safe-area-left: env(safe-area-inset-left, 0px);
+  --safe-area-right: env(safe-area-inset-right, 0px);
+}
+
+@media (prefers-color-scheme: light) {
+  :root {
+    color: #213547;
+    background-color: #ffffff;
+  }
+}
+
+
diff --git a/src/styles/components/cards.css b/src/styles/components/cards.css
index e69de29b..826d2879 100644
--- a/src/styles/components/cards.css
+++ b/src/styles/components/cards.css
@@ -0,0 +1,97 @@
+/* Bookmark item and blog post cards */
+.bookmark-item { background: #1a1a1a; padding: 1.5rem; border-radius: 12px; transition: all 0.2s ease; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1); }
+.bookmark-item:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15); }
+.bookmark-item h3 { margin: 0 0 0.5rem 0; color: #fff; font-size: 1.2rem; }
+.bookmark-url { color: #646cff; text-decoration: none; display: block; margin-bottom: 0.5rem; word-break: break-all; background: none; border: none; padding: 0; font: inherit; cursor: pointer; text-align: left; width: 100%; }
+.bookmark-url:hover { text-decoration: underline; }
+.bookmark-content { color: #ccc; margin: 0.5rem 0; line-height: 1.4; word-wrap: break-word; overflow-wrap: break-word; word-break: break-word; }
+.bookmark-meta { color: #888; font-size: 0.9rem; margin-top: 0.5rem; }
+
+.individual-bookmarks { margin: 1rem 0; }
+.individual-bookmarks h4 { margin: 0 0 1rem 0; font-size: 1rem; color: #fff; }
+
+.bookmarks-grid { display: flex; flex-direction: column; gap: 1rem; width: 100%; max-width: 100%; }
+.bookmarks-grid.bookmarks-compact { gap: 0.5rem; }
+.bookmarks-grid.bookmarks-large { gap: 1.5rem; }
+@media (max-width: 768px) {
+  .bookmarks-grid { gap: 0.75rem; }
+  .bookmarks-grid.bookmarks-compact { gap: 0.25rem; }
+  .bookmarks-grid.bookmarks-large { gap: 1rem; }
+}
+
+.individual-bookmark { background: transparent; padding: 1rem; border-radius: 8px; transition: all 0.2s ease; border: 1px solid transparent; word-wrap: break-word; overflow-wrap: break-word; word-break: break-word; overflow: hidden; }
+.individual-bookmark:hover { border-color: transparent; background: #2a2a2a; }
+
+/* Compact view */
+.individual-bookmark.compact { padding: 0.5rem 0.5rem; background: transparent; border: none; border-bottom: 1px solid #2a2a2a; border-radius: 0; box-shadow: none; width: 100%; max-width: 100%; overflow: hidden; }
+.individual-bookmark.compact:hover { background: #252525; border-bottom-color: #333; transform: none; box-shadow: none; }
+.compact-row { display: flex; align-items: center; gap: 0.5rem; height: 28px; width: 100%; min-width: 0; overflow: hidden; }
+.compact-row.clickable { cursor: pointer; }
+.compact-row.clickable:active { opacity: 0.8; }
+.bookmark-type-compact { display: flex; align-items: center; gap: 0.25rem; color: #646cff; font-size: 0.85rem; flex-shrink: 0; }
+.compact-text { flex: 1; min-width: 0; color: #ccc; font-size: 0.85rem; line-height: 1.2; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.bookmark-date-compact { font-size: 0.7rem; color: #666; flex-shrink: 0; white-space: nowrap; }
+.compact-read-btn { background: transparent; color: #888; border: none; padding: 0; border-radius: 4px; cursor: pointer; font-size: 0.75rem; display: flex; align-items: center; justify-content: center; width: 24px; height: 22px; flex-shrink: 0; transition: color 0.2s ease; }
+.compact-read-btn:hover { color: #ccc; }
+.compact-read-btn:active { transform: translateY(1px); }
+
+.bookmark-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.75rem; flex-wrap: wrap; gap: 0.5rem; }
+.bookmark-type { color: #646cff; font-size: 0.9rem; display: flex; align-items: center; gap: 0.35rem; }
+.bookmark-id { font-family: monospace; font-size: 0.8rem; color: #888; background: #1a1a1a; padding: 0.25rem 0.5rem; border-radius: 4px; }
+.bookmark-date { font-size: 0.8rem; color: #666; }
+.bookmark-date-link { font-size: 0.8rem; color: #666; text-decoration: none; transition: color 0.2s ease; }
+.bookmark-date-link:hover { color: #8ab4f8; text-decoration: underline; }
+.individual-bookmark .bookmark-content { margin: 0.75rem 0; color: #ccc; line-height: 1.6; font-size: 0.9rem; word-wrap: break-word; overflow-wrap: break-word; word-break: break-word; }
+.expand-toggle { margin: 0.25rem 0; background: transparent; border: none; color: #888; cursor: pointer; width: 100%; height: 22px; display: flex; align-items: center; justify-content: center; }
+.expand-toggle:hover { color: #bbb; }
+.bookmark-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 0.75rem; gap: 0.75rem; }
+.bookmark-meta-minimal { font-size: 0.8rem; color: #888; }
+.author-link-minimal { color: #888; text-decoration: none; transition: color 0.2s ease; }
+.author-link-minimal:hover { color: #aaa; }
+.read-now-button-minimal { background: #28a745; color: white; border: none; padding: 0.5rem 1rem; border-radius: 6px; cursor: pointer; font-weight: 600; font-size: 0.85rem; transition: all 0.2s ease; white-space: nowrap; }
+.read-now-button-minimal:hover { background: #218838; }
+.expand-toggle-urls { margin-top: 0.5rem; background: transparent; border: none; color: #646cff; cursor: pointer; font-size: 0.8rem; padding: 0.25rem 0; text-decoration: underline; }
+.expand-toggle-urls:hover { color: #8088ff; }
+
+/* Large preview view */
+.individual-bookmark.large { padding: 0; display: flex; flex-direction: column; overflow: hidden; }
+.large-preview-image { width: 100%; height: 180px; background: #1a1a1a; background-size: cover; background-position: center; background-repeat: no-repeat; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.2s ease; border-bottom: 1px solid #333; position: relative; }
+.large-preview-image:hover { opacity: 0.9; }
+.large-preview-image::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.3) 100%); pointer-events: none; }
+.preview-placeholder { font-size: 3rem; color: #444; }
+.large-content { padding: 1.25rem; }
+.large-text { color: #ccc; font-size: 0.95rem; line-height: 1.6; margin-bottom: 1rem; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
+.large-footer { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; font-size: 0.8rem; color: #888; padding-top: 0.75rem; border-top: 1px solid #333; }
+.large-author { flex: 1; }
+.large-read-button { background: #28a745; color: white; border: none; padding: 0.5rem 1rem; border-radius: 6px; cursor: pointer; font-weight: 600; font-size: 0.85rem; transition: all 0.2s ease; display: flex; align-items: center; gap: 0.5rem; }
+.large-read-button:hover { background: #218838; }
+
+/* Blog cards (Explore) */
+.explore-container { padding: 2rem; max-width: 1400px; margin: 0 auto; min-height: 100vh; }
+.explore-header { text-align: center; margin-bottom: 3rem; }
+.explore-header h1 { font-size: 2.5rem; margin: 0 0 1rem 0; color: #646cff; display: flex; align-items: center; justify-content: center; gap: 1rem; }
+.explore-subtitle { font-size: 1.125rem; color: rgba(255, 255, 255, 0.7); margin: 0; }
+.explore-loading, .explore-error { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem; color: rgba(255, 255, 255, 0.7); }
+.explore-loading { min-height: 0; padding: 0.25rem 0; }
+.explore-error { color: #ff6b6b; }
+.explore-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 2rem; margin-top: 2rem; }
+.blog-post-card { background: #1a1a1a; border: 1px solid #333; border-radius: 12px; overflow: hidden; transition: all 0.3s ease; cursor: pointer; display: flex; flex-direction: column; height: 100%; }
+.blog-post-card:hover { border-color: #646cff; transform: translateY(-4px); box-shadow: 0 8px 24px rgba(100, 108, 255, 0.15); }
+.blog-post-card-image { width: 100%; height: 200px; overflow: hidden; background: #0f0f0f; }
+.blog-post-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
+.blog-post-card:hover .blog-post-card-image img { transform: scale(1.05); }
+.blog-post-card-content { padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; flex: 1; }
+.blog-post-card-title { font-size: 1.25rem; font-weight: 600; margin: 0; color: rgba(255, 255, 255, 0.95); line-height: 1.4; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
+.blog-post-card-summary { font-size: 0.875rem; color: rgba(255, 255, 255, 0.6); margin: 0; line-height: 1.6; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; flex: 1; }
+.blog-post-card-meta { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-top: 0.75rem; border-top: 1px solid #333; font-size: 0.75rem; color: rgba(255, 255, 255, 0.5); flex-wrap: wrap; }
+.blog-post-card-author, .blog-post-card-date { display: flex; align-items: center; gap: 0.5rem; }
+.blog-post-card-author svg, .blog-post-card-date svg { opacity: 0.7; }
+@media (max-width: 768px) {
+  .explore-container { padding: 1rem; }
+  .explore-header h1 { font-size: 2rem; }
+  .explore-grid { grid-template-columns: 1fr; gap: 1.5rem; }
+  .blog-post-card-summary { -webkit-line-clamp: 2; font-size: 0.8rem; }
+  .blog-post-card-content { padding: 1rem; }
+}
+
+
diff --git a/src/styles/components/forms.css b/src/styles/components/forms.css
index e69de29b..c023cb5f 100644
--- a/src/styles/components/forms.css
+++ b/src/styles/components/forms.css
@@ -0,0 +1,30 @@
+/* Forms and controls for settings */
+.setting-group { margin-bottom: 1.5rem; text-align: left; }
+.setting-group.setting-inline { display: flex; align-items: center; gap: 1rem; }
+.setting-label { text-align: left; flex: 1; }
+.setting-control { display: flex; justify-content: flex-end; align-items: center; }
+.setting-group.setting-inline label { margin-bottom: 0; }
+.setting-group label { display: block; margin-bottom: 0.5rem; color: #ccc; font-weight: 500; text-align: left; }
+.setting-buttons { display: flex; align-items: center; gap: 0.5rem; }
+.color-picker { display: flex; align-items: center; gap: 0.5rem; }
+.color-swatch { width: 33px; height: 33px; border: 1px solid #444; border-radius: 6px; cursor: pointer; transition: all 0.2s; position: relative; }
+.color-swatch:hover { border-color: #888; }
+.color-swatch.active { border-color: #646cff; box-shadow: 0 0 0 2px #646cff; }
+.color-swatch.active::after { content: '✓'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); color: #000; font-size: 0.875rem; font-weight: bold; text-shadow: 0 0 2px #fff; }
+.font-size-btn { min-width: 33px; height: 33px; padding: 0; background: transparent; border: 1px solid #444; border-radius: 6px; color: #ccc; cursor: pointer; transition: all 0.2s; font-weight: bold; display: flex; align-items: center; justify-content: center; }
+.font-size-btn:hover { background: #333; border-color: #666; }
+.font-size-btn.active { background: #646cff; border-color: #646cff; color: white; }
+.setting-preview { margin: 1.5rem 0; padding: 1rem; background: #1a1a1a; border: 1px solid #333; border-radius: 8px; }
+.preview-label { font-size: 0.875rem; color: #999; margin-bottom: 0.75rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }
+.preview-content { color: #ddd; line-height: 1.7; }
+.preview-content h3 { margin: 0 0 1rem 0; font-size: 1.5em; color: #fff; }
+.preview-content p { margin: 0.75rem 0; }
+.setting-select { width: 100%; padding: 0.5rem; background: #2a2a2a; border: 1px solid #444; border-radius: 4px; color: #fff; font-size: 1rem; }
+.setting-inline .setting-select { width: auto; min-width: 200px; flex: 1; }
+.setting-select:focus { outline: none; border-color: #646cff; }
+.font-select option { padding: 0.5rem; font-size: 1rem; }
+.checkbox-label { display: flex !important; align-items: center; gap: 0.75rem; cursor: pointer; user-select: none; text-align: left; justify-content: flex-start; margin-bottom: 0 !important; font-weight: normal !important; }
+.setting-checkbox { width: 18px; height: 18px; cursor: pointer; flex-shrink: 0; margin: 0; accent-color: #646cff; }
+.checkbox-label span { color: #ddd; text-align: left; font-weight: 500; }
+
+
diff --git a/src/styles/components/icon-button.css b/src/styles/components/icon-button.css
index e69de29b..79ee25cd 100644
--- a/src/styles/components/icon-button.css
+++ b/src/styles/components/icon-button.css
@@ -0,0 +1,43 @@
+/* Generic IconButton styling */
+.icon-button {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border: 1px solid #444;
+  border-radius: 6px;
+  background: #2a2a2a;
+  color: #ddd;
+  cursor: pointer;
+  min-width: 33px;
+  min-height: 33px;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+.icon-button:hover { background: #333; }
+.icon-button:active { transform: translateY(1px); }
+
+.icon-button.primary { background: #646cff; color: white; border-color: #646cff; }
+.icon-button.primary:hover { filter: brightness(1.05); }
+
+.icon-button.success { background: #28a745; color: white; border-color: #28a745; }
+.icon-button.success:hover { filter: brightness(1.05); }
+
+.icon-button.ghost { background: #2a2a2a; }
+
+/* Mobile touch target improvements */
+@media (max-width: 768px) {
+  .icon-button {
+    min-width: var(--min-touch-target);
+    min-height: var(--min-touch-target);
+  }
+}
+
+/* Disable hover effects on touch devices */
+@media (pointer: coarse) {
+  .icon-button:hover { background: #2a2a2a; }
+  .icon-button.ghost:hover { background: #2a2a2a; }
+  .icon-button:active { background: #333; }
+}
+
+
diff --git a/src/styles/components/modals.css b/src/styles/components/modals.css
index e69de29b..08845f23 100644
--- a/src/styles/components/modals.css
+++ b/src/styles/components/modals.css
@@ -0,0 +1,28 @@
+/* Add Bookmark Modal */
+.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.75); display: flex; align-items: center; justify-content: center; z-index: 10000; padding: 1rem; }
+.modal-content { background: #1a1a1a; border: 1px solid #333; border-radius: 12px; max-width: 500px; width: 100%; max-height: 90vh; overflow-y: auto; box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5); box-sizing: border-box; }
+@media (max-width: 768px) {
+  .modal-overlay { padding: 0; align-items: flex-end; }
+  .modal-content { max-width: 100%; max-height: 95vh; max-height: 95dvh; border-radius: 16px 16px 0 0; margin: 0; padding-bottom: var(--safe-area-bottom); }
+}
+.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 1.5rem; border-bottom: 1px solid #333; }
+.modal-header h2 { margin: 0; font-size: 1.5rem; color: #fff; }
+.modal-form { padding: 1.5rem; }
+.form-group { margin-bottom: 1.25rem; }
+.form-group label { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.5rem; color: #ccc; font-size: 0.9rem; font-weight: 500; }
+.fetching-indicator { font-size: 0.8rem; color: #999; font-weight: normal; display: inline-flex; align-items: center; gap: 0.5rem; }
+.form-group input, .form-group textarea { width: 100%; padding: 0.75rem; background: #2a2a2a; border: 1px solid #444; border-radius: 6px; color: #fff; font-size: 1rem; font-family: inherit; transition: border-color 0.2s; box-sizing: border-box; }
+.form-group input:focus, .form-group textarea:focus { outline: none; border-color: #646cff; }
+.form-group input:disabled, .form-group textarea:disabled { opacity: 0.6; cursor: not-allowed; }
+.form-group textarea { resize: vertical; min-height: 80px; }
+.form-helper-text { margin-top: 0.25rem; font-size: 0.8rem; color: #999; line-height: 1.4; }
+.modal-error { padding: 0.75rem; background: rgba(220, 53, 69, 0.1); border: 1px solid #dc3545; border-radius: 6px; color: #dc3545; font-size: 0.9rem; margin-bottom: 1rem; }
+.modal-actions { display: flex; gap: 0.75rem; justify-content: flex-end; margin-top: 1.5rem; }
+.btn-secondary { padding: 0.75rem 1.5rem; background: #2a2a2a; border: 1px solid #444; border-radius: 6px; color: #ccc; font-size: 1rem; cursor: pointer; transition: all 0.2s; }
+.btn-secondary:hover:not(:disabled) { background: #333; border-color: #646cff; color: white; }
+.btn-secondary:disabled { opacity: 0.6; cursor: not-allowed; }
+.btn-primary { padding: 0.75rem 1.5rem; background: #646cff; border: none; border-radius: 6px; color: white; font-size: 1rem; cursor: pointer; transition: background-color 0.2s; }
+.btn-primary:hover:not(:disabled) { background: #535bf2; }
+.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
+
+
diff --git a/src/styles/components/profile.css b/src/styles/components/profile.css
index e69de29b..1d38ccf8 100644
--- a/src/styles/components/profile.css
+++ b/src/styles/components/profile.css
@@ -0,0 +1,20 @@
+/* Profile UI fragments */
+.author-card-container { display: flex; justify-content: center; padding: 2rem 1rem; }
+.author-card { display: flex; gap: 1rem; padding: 1.5rem; background: #1a1a1a; border: 1px solid #333; border-radius: 12px; max-width: 600px; width: 100%; }
+.author-card-avatar { flex-shrink: 0; width: 60px; height: 60px; border-radius: 50%; overflow: hidden; background: #2a2a2a; display: flex; align-items: center; justify-content: center; color: #666; }
+.author-card-avatar img { width: 100%; height: 100%; object-fit: cover; }
+.author-card-avatar svg { font-size: 2.5rem; }
+.author-card-content { flex: 1; min-width: 0; }
+.author-card-name { font-size: 1rem; font-weight: 600; color: #ddd; margin-bottom: 0.5rem; }
+.author-card-bio { font-size: 0.9rem; color: #999; line-height: 1.5; margin: 0; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; }
+
+@media (max-width: 768px) {
+  .author-card-container { padding: 1.5rem 1rem; }
+  .author-card { padding: 1rem; }
+  .author-card-avatar { width: 48px; height: 48px; }
+  .author-card-avatar svg { font-size: 2rem; }
+  .author-card-name { font-size: 0.95rem; }
+  .author-card-bio { font-size: 0.85rem; -webkit-line-clamp: 2; }
+}
+
+
diff --git a/src/styles/components/reader.css b/src/styles/components/reader.css
index e69de29b..6e3dff73 100644
--- a/src/styles/components/reader.css
+++ b/src/styles/components/reader.css
@@ -0,0 +1,69 @@
+/* Reader view */
+.reader { background: #1a1a1a; border: 1px solid #333; border-radius: 8px; padding: 0.75rem; text-align: left; overflow: hidden; contain: layout style; }
+.reader.empty { color: #888; }
+.loading-spinner { display: flex; align-items: center; gap: 0.5rem; color: #888; }
+.loading-spinner svg { font-size: 1.2rem; }
+.reader-header { margin-bottom: 2rem; position: relative; }
+.reader-title { margin: 0 0 0.75rem 0; font-family: var(--reading-font); }
+.reader-summary { color: #aaa; font-size: 1.1rem; line-height: 1.5; margin: 0 0 1rem 0; font-family: var(--reading-font); }
+.reader-meta { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
+.publish-date { display: flex; align-items: center; gap: 0.4rem; font-size: 0.813rem; color: rgba(136, 136, 136, 0.7); opacity: 0.85; }
+.publish-date svg { font-size: 0.75rem; opacity: 0.6; }
+.publish-date-topright { position: absolute; top: 1rem; right: 1rem; font-size: 0.813rem; color: #fff; padding: 0.4rem 0.75rem; text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5); z-index: 10; }
+.reading-time { display: flex; align-items: center; gap: 0.5rem; padding: 0.375rem 0.75rem; background: rgba(136, 136, 136, 0.1); border: 1px solid rgba(136, 136, 136, 0.3); border-radius: 6px; font-size: 0.875rem; color: #888; }
+.reading-time svg { font-size: 0.875rem; }
+.highlight-indicator { display: flex; align-items: center; gap: 0.5rem; padding: 0.375rem 0.75rem; background: rgba(100, 108, 255, 0.1); border: 1px solid rgba(100, 108, 255, 0.3); border-radius: 6px; font-size: 0.875rem; color: #646cff; }
+.highlight-indicator svg { font-size: 0.875rem; }
+.reader-html { color: #ddd; line-height: 1.6; word-wrap: break-word; overflow-wrap: break-word; word-break: break-word; font-family: var(--reading-font); font-size: var(--reading-font-size); }
+.reader-markdown { color: #ddd; line-height: 1.7; font-family: var(--reading-font); font-size: var(--reading-font-size); }
+/* Ensure content is left-aligned even if source markup uses center */
+.reader .reader-html *, .reader .reader-markdown * { text-align: left !important; font-family: inherit !important; }
+.reader center, .reader [align="center"] { text-align: left !important; }
+/* Tame images from external content */
+.reader .reader-html img, .reader .reader-markdown img { max-width: 100%; max-height: 70vh; height: auto; width: auto; display: block; margin: 0.75rem 0; border-radius: 6px; }
+.reader-markdown h1, .reader-markdown h2, .reader-markdown h3, .reader-markdown h4 { margin-top: 1.2rem; }
+.reader-markdown p { margin: 0.5rem 0; }
+.reader-html p, .reader-html div, .reader-html span, .reader-html li, .reader-html td, .reader-html th { font-size: 1em !important; }
+.reader-markdown a { color: #8ab4f8; text-decoration: none; }
+.reader-markdown a:hover { text-decoration: underline; }
+.reader-markdown pre, .reader-markdown code { background: #111; border: 1px solid #333; border-radius: 6px; }
+.reader-markdown pre { padding: 0.75rem; overflow: auto; }
+.reader-markdown code { padding: 0.1rem 0.3rem; }
+/* Mark as Read button */
+.mark-as-read-container { display: flex; justify-content: center; align-items: center; padding: 2rem 1rem; margin-top: 2rem; border-top: 1px solid #333; }
+.mark-as-read-btn { display: flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1.5rem; background: #2a2a2a; color: #ddd; border: 1px solid #444; border-radius: 8px; font-size: 1rem; font-weight: 500; cursor: pointer; transition: all 0.2s ease; min-width: 160px; justify-content: center; }
+.mark-as-read-btn:hover:not(:disabled) { background: #333; border-color: #555; transform: translateY(-1px); }
+.mark-as-read-btn:active:not(:disabled) { transform: translateY(0); }
+.mark-as-read-btn:disabled { opacity: 0.6; cursor: not-allowed; }
+.mark-as-read-btn svg { font-size: 1.1rem; }
+@media (max-width: 768px) {
+  .mark-as-read-container { padding: 1.5rem 1rem; }
+  .mark-as-read-btn { width: 100%; max-width: 300px; }
+}
+
+/* Hero image in reader/card views */
+.article-hero-image { width: 100%; height: 200px; background-size: cover; background-position: center; background-repeat: no-repeat; cursor: pointer; transition: all 0.2s ease; border-radius: 8px 8px 0 0; position: relative; }
+.article-hero-image:hover { opacity: 0.9; }
+.article-hero-image::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.4) 100%); pointer-events: none; border-radius: 8px 8px 0 0; }
+.reader-hero-image { width: calc(100% + 1.5rem); margin: -0.75rem -0.75rem 2rem -0.75rem; border-radius: 0; overflow: hidden; position: relative; min-height: 300px; }
+.reader-hero-image img { width: 100%; height: auto; max-height: 500px; object-fit: cover; display: block; }
+.reader-header-overlay { position: absolute; bottom: 0; left: 0; right: 0; padding: 2rem 2rem 1.5rem; background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.6) 60%, rgba(0, 0, 0, 0) 100%); }
+.reader-header-overlay .reader-title { color: #fff; text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5); margin-bottom: 0.75rem; }
+.reader-header-overlay .reader-summary { color: rgba(255, 255, 255, 0.9); font-size: 1.1rem; line-height: 1.5; margin: 0 0 1rem 0; text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4); font-family: var(--reading-font); }
+.reader-header-overlay .reader-meta { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
+.reader-header-overlay .publish-date { color: rgba(255, 255, 255, 0.65); text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3); opacity: 1; }
+.reader-header-overlay .publish-date svg { opacity: 0.7; }
+.reader-header-overlay .reading-time, .reader-header-overlay .highlight-indicator { background: rgba(255, 255, 255, 0.15); backdrop-filter: blur(8px); border: 1px solid rgba(255, 255, 255, 0.25); color: #fff; }
+.reader-header-overlay .highlight-indicator { background: rgba(100, 108, 255, 0.25); border: 1px solid rgba(100, 108, 255, 0.4); }
+.reader-summary-below-image { display: none; }
+@media (max-width: 768px) {
+  .reader-header-overlay .reader-summary.hide-on-mobile { display: none; }
+  .reader-summary-below-image { display: block; padding: 0 0 1.5rem 0; margin-top: -1rem; }
+  .reader-summary-below-image .reader-summary { color: #aaa; font-size: 1rem; line-height: 1.6; margin: 0; }
+  .reader-hero-image { min-height: 280px; max-height: 400px; height: 50vh; }
+  .reader-hero-image img { height: 100%; width: 100%; object-fit: cover; object-position: center; }
+  .reader-header-overlay { padding: 1.5rem 1rem 1rem; }
+  .reader-header-overlay .reader-title { font-size: 1.5rem; line-height: 1.3; }
+}
+
+
diff --git a/src/styles/components/settings.css b/src/styles/components/settings.css
index e69de29b..95cb0cca 100644
--- a/src/styles/components/settings.css
+++ b/src/styles/components/settings.css
@@ -0,0 +1,15 @@
+/* Settings view containers */
+.settings-view { display: flex; flex-direction: column; height: 100%; overflow: hidden; padding: 0.75rem 1rem; text-align: left; }
+.settings-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; padding: 0; }
+.settings-header h2 { margin: 0; font-size: 1.5rem; font-weight: 600; text-align: left; }
+.settings-header-actions { display: flex; gap: 0.5rem; align-items: center; }
+.settings-content { overflow-y: auto; flex: 1; margin-bottom: 1rem; text-align: left; padding: 0 0.25rem 2rem 0.25rem; }
+.settings-section { margin-bottom: 2.5rem; }
+.settings-section:last-child { margin-bottom: 0; }
+.section-title { font-size: 1rem; font-weight: 600; color: #fff; margin: 0 0 1rem 0; padding-bottom: 0.5rem; border-bottom: 1px solid #333; text-transform: uppercase; letter-spacing: 0.05em; }
+.settings-footer { display: flex; justify-content: flex-start; padding: 1rem 0 0.5rem 0; flex-shrink: 0; }
+.settings-footer .btn-primary { background: #646cff; color: white; border: none; padding: 0.75rem 1.5rem; border-radius: 4px; font-size: 1rem; cursor: pointer; transition: background-color 0.2s; display: flex; align-items: center; gap: 0.5rem; }
+.settings-footer .btn-primary:hover:not(:disabled) { background: #535bf2; }
+.settings-footer .btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
+
+
diff --git a/src/styles/components/toast.css b/src/styles/components/toast.css
index e69de29b..e7487882 100644
--- a/src/styles/components/toast.css
+++ b/src/styles/components/toast.css
@@ -0,0 +1,13 @@
+/* Toast Notification */
+.toast { position: fixed; top: 2rem; right: 2rem; background: #1a1a1a; color: #fff; padding: 1rem 1.5rem; border-radius: 8px; border: 1px solid #333; display: flex; align-items: center; gap: 0.75rem; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3); animation: toast-slide-in 0.3s ease-out; z-index: 9999; font-size: 0.95rem; }
+@media (max-width: 768px) {
+  .toast { top: auto; bottom: calc(1rem + var(--safe-area-bottom)); right: 1rem; left: 1rem; max-width: calc(100% - 2rem); }
+  @keyframes toast-slide-in { from { transform: translateY(100px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
+}
+.toast-success { border-color: #28a745; }
+.toast-success svg { color: #28a745; }
+.toast-error { border-color: #dc3545; }
+.toast-error svg { color: #dc3545; }
+@keyframes toast-slide-in { from { transform: translateX(400px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
+
+
diff --git a/src/styles/layout/app.css b/src/styles/layout/app.css
index e69de29b..62dbce0b 100644
--- a/src/styles/layout/app.css
+++ b/src/styles/layout/app.css
@@ -0,0 +1,145 @@
+/* App-level layout and panes */
+.bookmarks-list {
+  display: flex;
+  flex-direction: column;
+  gap: 1.5rem;
+  max-width: 600px;
+  margin: 0 auto;
+}
+
+/* Two-pane layout (legacy support) */
+.two-pane {
+  display: grid;
+  grid-template-columns: 360px 1fr;
+  column-gap: 0;
+  height: calc(100vh - 4rem);
+  transition: grid-template-columns 0.3s ease;
+}
+
+.two-pane.sidebar-collapsed { grid-template-columns: 60px 1fr; }
+
+/* Three-pane layout */
+.three-pane {
+  display: grid;
+  grid-template-columns: var(--sidebar-width) 1fr var(--highlights-width);
+  column-gap: 0;
+  height: calc(100vh - 2rem);
+  transition: grid-template-columns 0.3s ease;
+  position: relative;
+}
+
+@supports (height: 100dvh) {
+  .three-pane { height: calc(100dvh - 2rem); }
+}
+
+.three-pane.sidebar-collapsed { grid-template-columns: var(--sidebar-collapsed-width) 1fr var(--highlights-width); }
+.three-pane.highlights-collapsed { grid-template-columns: var(--sidebar-width) 1fr var(--highlights-collapsed-width); }
+.three-pane.sidebar-collapsed.highlights-collapsed { grid-template-columns: var(--sidebar-collapsed-width) 1fr var(--highlights-collapsed-width); }
+
+/* Mobile three-pane layout */
+@media (max-width: 768px) {
+  .three-pane {
+    grid-template-columns: 1fr;
+    grid-template-rows: 1fr;
+    height: 100vh;
+    height: 100dvh;
+  }
+  .three-pane.sidebar-collapsed,
+  .three-pane.highlights-collapsed,
+  .three-pane.sidebar-collapsed.highlights-collapsed { grid-template-columns: 1fr; }
+}
+
+.pane.sidebar { overflow-y: auto; height: 100%; }
+.pane.main {
+  overflow-y: auto;
+  height: 100%;
+  max-width: var(--main-max-width);
+  margin: 0 auto;
+  padding: 0 var(--main-horizontal-padding);
+  overflow-x: hidden;
+  contain: layout style;
+}
+
+/* Remove padding when sidebar is collapsed for zero gap */
+.three-pane.sidebar-collapsed .pane.main { padding-left: 0; }
+.three-pane.sidebar-collapsed.highlights-collapsed .pane.main { padding-left: 0; }
+.pane.highlights { overflow-y: auto; height: 100%; }
+
+/* Ensure panes are stacked in the correct order on desktop */
+@media (min-width: 769px) {
+  /* Desktop stacking to keep highlights above main without overlap */
+  .three-pane .pane.sidebar { z-index: 1; }
+  .three-pane .pane.main { z-index: 1; }
+  .three-pane .pane.highlights { z-index: 2; }
+}
+
+/* Mobile pane styles */
+@media (max-width: 768px) {
+  /* Both sidepanes slide in as overlays */
+  .pane.sidebar,
+  .pane.highlights {
+    position: fixed;
+    top: 0;
+    width: 85%;
+    max-width: 320px;
+    height: 100vh;
+    height: 100dvh;
+    background: #1a1a1a;
+    z-index: 1001; /* Above backdrop */
+    transition: transform 0.3s ease;
+    box-shadow: none;
+    display: flex;
+    flex-direction: column;
+  }
+  /* Ensure content fills the mobile sidepanes */
+  .pane.sidebar > *,
+  .pane.highlights > * { width: 100%; height: 100%; }
+  /* Remove borders from containers in mobile overlays */
+  .pane.sidebar .bookmarks-container,
+  .pane.highlights .highlights-container { border: none; border-radius: 0; flex: 1; min-height: 0; }
+  /* Bookmarks sidebar from left */
+  .pane.sidebar { left: 0; transform: translateX(-100%); }
+  .pane.sidebar.mobile-open { transform: translateX(0); box-shadow: 4px 0 12px rgba(0, 0, 0, 0.5); }
+  /* Highlights sidebar from right */
+  .pane.highlights { right: 0; transform: translateX(100%); }
+  .pane.highlights.mobile-open { transform: translateX(0); box-shadow: -4px 0 12px rgba(0, 0, 0, 0.5); }
+  .pane.main { grid-column: 1; grid-row: 1; padding: 0.5rem; max-width: 100%; transition: opacity 0.2s ease; }
+  /* Hide main content when sidepanes are open on mobile */
+  .three-pane .pane.main.mobile-hidden { opacity: 0; pointer-events: none; }
+  .mobile-sidebar-backdrop {
+    display: none;
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: rgba(0, 0, 0, 0.45);
+    z-index: 999; /* Below sidepanes */
+    opacity: 0;
+    transition: opacity 0.3s ease;
+  }
+  .mobile-sidebar-backdrop.visible { display: block; opacity: 1; }
+  .mobile-highlights-btn {
+    display: none;
+    position: fixed;
+    top: calc(1rem + env(safe-area-inset-top));
+    right: calc(1rem + env(safe-area-inset-right));
+    z-index: 900;
+    background: #2a2a2a;
+    border: 1px solid #444;
+    border-radius: 8px;
+    color: #ddd;
+    width: var(--min-touch-target);
+    height: var(--min-touch-target);
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
+    transition: transform 0.2s ease, opacity 0.3s ease, visibility 0.3s ease;
+  }
+  .mobile-highlights-btn.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
+  .mobile-highlights-btn.visible { opacity: 1; visibility: visible; }
+  @media (max-width: 768px) { .mobile-highlights-btn { display: flex; } }
+}
+
+
diff --git a/src/styles/layout/highlights.css b/src/styles/layout/highlights.css
index e69de29b..f0742d30 100644
--- a/src/styles/layout/highlights.css
+++ b/src/styles/layout/highlights.css
@@ -0,0 +1,150 @@
+/* Highlights panel layout and interactions */
+.highlights-container {
+  background: #1a1a1a;
+  border: 1px solid #333;
+  border-radius: 12px;
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+  overflow: hidden;
+}
+
+.highlights-container.collapsed {
+  display: flex;
+  align-items: flex-start;
+  justify-content: flex-start;
+  padding: 0;
+  background: transparent;
+  border: none;
+}
+
+.highlights-container.collapsed .toggle-highlights-btn {
+  background: #2a2a2a;
+  color: #ddd;
+  border: none;
+  padding: 0;
+  border-radius: 0;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 36px;
+  height: 36px;
+}
+
+.highlights-container.collapsed .toggle-highlights-btn:hover { background: #333; color: #fff; }
+.highlights-container.collapsed .toggle-highlights-btn:active { transform: translateY(1px); }
+.highlights-container.collapsed .toggle-highlights-btn.with-icon { width: auto; padding: 0 0.5rem; gap: 0.5rem; }
+
+.highlights-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0.75rem 1rem;
+  border-bottom: 1px solid #333;
+  background: #1a1a1a;
+  border-radius: 12px 12px 0 0;
+}
+
+.highlights-actions { display: flex; align-items: center; justify-content: space-between; width: 100%; }
+.highlights-actions-left { display: flex; align-items: center; gap: 0.5rem; }
+
+.highlights-title { display: flex; align-items: center; gap: 0.5rem; }
+.highlights-title h3 { margin: 0; font-size: 1rem; font-weight: 600; }
+.highlights-title .count { color: #888; font-size: 0.875rem; }
+
+.highlight-mode-toggle { display: flex; gap: 0.25rem; padding: 0.25rem; background: rgba(255, 255, 255, 0.05); border-radius: 4px; }
+.highlight-mode-toggle .mode-btn { background: none; border: none; color: #888; cursor: pointer; padding: 0.375rem 0.5rem; border-radius: 3px; transition: all 0.2s; font-size: 0.9rem; }
+.highlight-mode-toggle .mode-btn:hover { background: rgba(255, 255, 255, 0.1); color: #fff; }
+.highlight-mode-toggle .mode-btn.active { background: #646cff; color: #fff; }
+
+/* Three-level highlight toggles */
+.highlight-level-toggles { display: flex; gap: 0.25rem; padding: 0.25rem; background: rgba(255, 255, 255, 0.05); border-radius: 4px; }
+.highlight-level-toggles .level-toggle-btn { background: none; border: none; color: #888; cursor: pointer; padding: 0.375rem 0.5rem; border-radius: 3px; transition: all 0.2s; font-size: 0.9rem; }
+.highlight-level-toggles .level-toggle-btn:hover { background: rgba(255, 255, 255, 0.1); }
+.highlight-level-toggles .level-toggle-btn.active { background: rgba(255, 255, 255, 0.1); opacity: 1; }
+.highlight-level-toggles .level-toggle-btn:not(.active) { opacity: 0.4; }
+.highlight-level-toggles .level-toggle-btn:disabled { opacity: 0.3; cursor: not-allowed; }
+.highlight-level-toggles .level-toggle-btn:disabled:hover { background: none; }
+
+.refresh-highlights-btn,
+.toggle-highlight-display-btn,
+.toggle-highlights-btn {
+  background: transparent;
+  color: #ddd;
+  border: 1px solid #444;
+  padding: 0;
+  border-radius: 6px;
+  cursor: pointer;
+  width: 36px;
+  height: 36px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  transition: all 0.2s ease;
+}
+
+.refresh-highlights-btn:hover,
+.toggle-highlight-display-btn:hover,
+.toggle-highlights-btn:hover { background: #2a2a2a; color: #fff; }
+.refresh-highlights-btn:active,
+.toggle-highlight-display-btn:active,
+.toggle-highlights-btn:active { transform: translateY(1px); }
+.refresh-highlights-btn:disabled { opacity: 0.5; cursor: not-allowed; }
+.refresh-highlights-btn:disabled:hover { background: transparent; color: #ddd; }
+
+.highlights-loading,
+.highlights-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 2rem 1rem; color: #888; text-align: center; gap: 0.5rem; }
+.highlights-empty svg { color: #555; margin-bottom: 0.5rem; }
+.empty-hint { font-size: 0.875rem; color: #666; margin-top: 0.5rem; }
+
+.highlights-list { overflow-y: auto; padding: 1rem; display: flex; flex-direction: column; gap: 1rem; }
+.highlight-item { background: #1e1e1e; border: 1px solid #333; border-radius: 8px; padding: 1rem; display: flex; gap: 0.75rem; transition: border-color 0.2s ease; }
+.highlight-item:hover { border-color: #646cff; }
+.highlight-item.selected { border-color: #646cff; background: #252525; box-shadow: 0 0 0 2px rgba(100, 108, 255, 0.3); }
+
+/* Level colors in sidebar items */
+.highlight-item.level-mine { border-color: color-mix(in srgb, var(--highlight-color-mine, #ffff00) 60%, #333); box-shadow: 0 0 0 1px color-mix(in srgb, var(--highlight-color-mine, #ffff00) 25%, transparent); }
+.highlight-item.level-friends { border-color: color-mix(in srgb, var(--highlight-color-friends, #f97316) 60%, #333); box-shadow: 0 0 0 1px color-mix(in srgb, var(--highlight-color-friends, #f97316) 25%, transparent); }
+.highlight-item.level-nostrverse { border-color: color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 60%, #333); box-shadow: 0 0 0 1px color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 25%, transparent); }
+
+.highlight-quote-icon { color: #646cff; font-size: 1.2rem; flex-shrink: 0; margin-top: 0.25rem; position: relative; }
+.highlight-relay-indicator { position: absolute; bottom: -4px; left: -6px; font-size: 0.7rem; color: #888; opacity: 0.7; transition: all 0.2s ease; cursor: pointer; padding: 4px; min-width: 20px; min-height: 20px; display: flex; align-items: center; justify-content: center; }
+.highlight-relay-indicator:hover { opacity: 1; color: #aaa; transform: scale(1.1); }
+.highlight-relay-indicator:active { transform: scale(0.95); }
+.highlight-delete-btn { position: absolute; bottom: -4px; right: -6px; font-size: 0.7rem; color: #888; opacity: 0.7; transition: all 0.2s ease; cursor: pointer; padding: 4px; min-width: 20px; min-height: 20px; display: flex; align-items: center; justify-content: center; }
+.highlight-delete-btn:hover { opacity: 1; color: #ff4444; transform: scale(1.1); }
+.highlight-delete-btn:active { transform: scale(0.95); }
+
+/* Mobile: Larger touch targets and better spacing */
+@media (max-width: 768px) {
+  .highlight-quote-icon { min-width: 100px; }
+  .highlight-relay-indicator { bottom: -8px; left: -8px; padding: 8px; min-width: var(--min-touch-target); min-height: var(--min-touch-target); font-size: 0.85rem; }
+  .highlight-delete-btn { bottom: -8px; right: -8px; padding: 8px; min-width: var(--min-touch-target); min-height: var(--min-touch-target); font-size: 0.85rem; }
+}
+
+/* Level-colored quote icon */
+.highlight-item.level-mine .highlight-quote-icon { color: var(--highlight-color-mine, #ffff00); }
+.highlight-item.level-friends .highlight-quote-icon { color: var(--highlight-color-friends, #f97316); }
+.highlight-item.level-nostrverse .highlight-quote-icon { color: var(--highlight-color-nostrverse, #9333ea); }
+
+.highlight-content { flex: 1; display: flex; flex-direction: column; gap: 0.75rem; }
+.highlight-text { margin: 0; padding: 0; font-style: italic; color: #ddd; line-height: 1.6; border-left: none; font-size: 0.95rem; }
+.highlight-comment { margin-top: 0.5rem; padding: 0.75rem; background: rgba(100, 108, 255, 0.1); border-left: 3px solid #646cff; border-radius: 4px; font-size: 0.875rem; color: #ddd; line-height: 1.5; }
+
+.highlight-meta { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; color: #888; flex-wrap: nowrap; min-height: 20px; }
+.highlight-author { color: #aaa; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 150px; line-height: 1; }
+.highlight-meta-separator { color: #666; flex-shrink: 0; line-height: 1; }
+.highlight-time { color: #888; white-space: nowrap; flex-shrink: 0; line-height: 1; }
+.highlight-menu-wrapper { position: relative; margin-left: auto; flex-shrink: 0; }
+.highlight-menu-btn { background: none; border: none; color: #888; cursor: pointer; padding: 0.25rem 0.5rem; font-size: 0.875rem; display: flex; align-items: center; transition: color 0.2s ease; border-radius: 4px; }
+.highlight-menu-btn:hover { color: #646cff; background: rgba(100, 108, 255, 0.1); }
+.highlight-menu { position: absolute; right: 0; top: calc(100% + 4px); background: #2a2a2a; border: 1px solid #444; border-radius: 6px; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3); z-index: 1000; min-width: 160px; overflow: hidden; }
+.highlight-menu-item { width: 100%; background: none; border: none; color: #ddd; padding: 0.625rem 0.875rem; font-size: 0.875rem; display: flex; align-items: center; gap: 0.625rem; cursor: pointer; transition: all 0.15s ease; text-align: left; white-space: nowrap; }
+.highlight-menu-item:hover { background: rgba(100, 108, 255, 0.15); color: #fff; }
+.highlight-menu-item:disabled { opacity: 0.5; cursor: not-allowed; }
+.highlight-menu-item-danger:hover { background: rgba(255, 68, 68, 0.15); color: #ff4444; }
+.highlight-menu-item svg { font-size: 0.875rem; flex-shrink: 0; }
+
+
diff --git a/src/styles/layout/sidebar.css b/src/styles/layout/sidebar.css
index e69de29b..7d1e977d 100644
--- a/src/styles/layout/sidebar.css
+++ b/src/styles/layout/sidebar.css
@@ -0,0 +1,183 @@
+/* Bookmarks and sidebar layout */
+.bookmarks-container {
+  background: #1a1a1a;
+  border: 1px solid #333;
+  border-radius: 12px;
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+  overflow: hidden;
+  text-align: left;
+  padding: 0;
+}
+
+.bookmarks-container .view-mode-controls {
+  margin-top: auto;
+  padding: 1rem;
+  border-top: 1px solid #333;
+  background: transparent;
+  border-radius: 0;
+}
+
+.bookmarks-container .bookmarks-list {
+  padding: 0.5rem;
+  overflow-y: auto;
+  overflow-x: hidden;
+  flex: 1;
+  width: 100%;
+  max-width: 100%;
+  box-sizing: border-box;
+}
+
+.sidebar-header-bar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.75rem;
+  padding: 0.75rem 1rem;
+  background: #1a1a1a;
+  border: 1px solid #333;
+  border-radius: 12px 12px 0 0;
+  margin-bottom: 0;
+}
+
+.sidebar-header-right {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  margin-left: auto;
+}
+
+.mobile-hamburger-btn {
+  display: none;
+  position: fixed;
+  top: calc(1rem + env(safe-area-inset-top));
+  left: calc(1rem + env(safe-area-inset-left));
+  z-index: 900;
+  background: #2a2a2a;
+  border: 1px solid #444;
+  border-radius: 8px;
+  color: #ddd;
+  width: var(--min-touch-target);
+  height: var(--min-touch-target);
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
+  transition: transform 0.2s ease, opacity 0.3s ease, visibility 0.3s ease;
+}
+
+.mobile-hamburger-btn.hidden {
+  opacity: 0;
+  visibility: hidden;
+  pointer-events: none;
+}
+
+.mobile-hamburger-btn.visible {
+  opacity: 1;
+  visibility: visible;
+}
+
+.mobile-hamburger-btn:active {
+  transform: scale(0.95);
+}
+
+.mobile-close-btn {
+  display: none;
+}
+
+@media (max-width: 768px) {
+  .mobile-hamburger-btn { display: flex; }
+  .sidebar-header-bar .toggle-sidebar-btn { display: none; }
+  .mobile-close-btn { display: flex; }
+}
+
+.view-mode-controls {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 0.5rem;
+}
+
+.profile-avatar {
+  width: 33px;
+  height: 33px;
+  border-radius: 6px;
+  overflow: hidden;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: #2a2a2a;
+  border: 1px solid #444;
+  flex-shrink: 0;
+  color: #ddd;
+  box-sizing: border-box;
+}
+
+.profile-avatar img { width: 100%; height: 100%; object-fit: cover; }
+.profile-avatar svg { font-size: 1.25rem; }
+
+.sidebar-header-bar .toggle-sidebar-btn {
+  background: transparent;
+  color: #ddd;
+  border: 1px solid #444;
+  padding: 0;
+  border-radius: 6px;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 33px;
+  height: 33px;
+  flex-shrink: 0;
+  box-sizing: border-box;
+}
+
+.sidebar-header-bar .toggle-sidebar-btn:hover { background: #2a2a2a; color: #fff; }
+.sidebar-header-bar .toggle-sidebar-btn:active { transform: translateY(1px); }
+
+.bookmarks-container.collapsed {
+  display: flex;
+  align-items: flex-start;
+  justify-content: flex-start;
+  padding: 0;
+  background: transparent;
+  border: none;
+}
+
+.bookmarks-container.collapsed .toggle-sidebar-btn {
+  background: #2a2a2a;
+  color: #ddd;
+  border: none;
+  padding: 0;
+  border-radius: 0;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 48px;
+  height: 36px;
+  flex-shrink: 0;
+}
+
+.bookmarks-container.collapsed .toggle-sidebar-btn:hover { background: #333; color: #fff; }
+.bookmarks-container.collapsed .toggle-sidebar-btn:active { transform: translateY(1px); }
+.bookmarks-container.collapsed .toggle-sidebar-btn.with-icon { width: auto; padding: 0 0.5rem; gap: 0.5rem; }
+.bookmarks-container.collapsed .toggle-sidebar-btn .glow-blue { color: #646cff; filter: drop-shadow(0 0 4px rgba(100, 108, 255, 0.6)); }
+
+.user-info { margin: 0.5rem 0 0 0; color: #888; font-size: 0.9rem; font-family: monospace; }
+.bookmark-count { color: #666; font-size: 0.9rem; margin: 0.5rem 0; }
+.event-link { color: #8ab4f8; text-decoration: none; font-weight: 500; }
+.event-link:hover { text-decoration: underline; }
+
+.bookmark-urls { margin: 0.75rem 0; }
+.bookmark-url { display: block; margin: 0.25rem 0; color: #007bff; text-decoration: none; word-break: break-all; background: none; border: none; padding: 0; font: inherit; cursor: pointer; text-align: left; width: 100%; }
+.bookmark-url:hover { text-decoration: underline; }
+
+.url-row { display: flex; align-items: center; gap: 0.5rem; }
+.read-inline-btn { background: #28a745; color: white; border: none; padding: 0.25rem 0.5rem; border-radius: 4px; cursor: pointer; }
+.read-inline-btn:hover { background: #218838; }
+
+
diff --git a/src/styles/utils/animations.css b/src/styles/utils/animations.css
index e69de29b..5149c5c3 100644
--- a/src/styles/utils/animations.css
+++ b/src/styles/utils/animations.css
@@ -0,0 +1,24 @@
+/* Reusable keyframes */
+@keyframes pulse-glow {
+  0%, 100% { opacity: 0.8; transform: scale(1); }
+  50% { opacity: 1; transform: scale(1.1); }
+}
+
+@keyframes toast-slide-in {
+  from { transform: translateX(400px); opacity: 0; }
+  to { transform: translateX(0); opacity: 1; }
+}
+
+@keyframes pulse {
+  0%, 100% { opacity: 0.4; transform: scale(1); }
+  50% { opacity: 1; transform: scale(1.1); }
+}
+
+@keyframes highlight-pulse-animation {
+  0%, 100% { box-shadow: 0 0 8px rgba(var(--highlight-rgb, 255, 255, 0), 0.2); transform: scale(1); }
+  25% { box-shadow: 0 0 20px rgba(var(--highlight-rgb, 255, 255, 0), 0.6); transform: scale(1.02); }
+  50% { box-shadow: 0 0 8px rgba(var(--highlight-rgb, 255, 255, 0), 0.2); transform: scale(1); }
+  75% { box-shadow: 0 0 20px rgba(var(--highlight-rgb, 255, 255, 0), 0.6); transform: scale(1.02); }
+}
+
+
diff --git a/src/styles/utils/utilities.css b/src/styles/utils/utilities.css
index e69de29b..76bcc706 100644
--- a/src/styles/utils/utilities.css
+++ b/src/styles/utils/utilities.css
@@ -0,0 +1,42 @@
+/* Inline content highlights - utilities */
+.content-highlight, .content-highlight-marker { background: rgba(var(--highlight-rgb, 255, 255, 0), 0.35); padding: 0.125rem 0.25rem; cursor: pointer; transition: all 0.2s ease; position: relative; border-radius: 2px; box-shadow: 0 0 8px rgba(var(--highlight-rgb, 255, 255, 0), 0.2); contain: layout style; }
+.content-highlight:hover, .content-highlight-marker:hover { background: rgba(var(--highlight-rgb, 255, 255, 0), 0.5); box-shadow: 0 0 12px rgba(var(--highlight-rgb, 255, 255, 0), 0.3); }
+.content-highlight-underline { background: transparent; padding: 0; cursor: pointer; transition: all 0.2s ease; position: relative; text-decoration: underline; text-decoration-color: rgba(var(--highlight-rgb, 255, 255, 0), 0.8); text-decoration-thickness: 2px; text-underline-offset: 2px; contain: layout style; }
+.content-highlight-underline:hover { text-decoration-color: rgba(var(--highlight-rgb, 255, 255, 0), 1); text-decoration-thickness: 3px; }
+.content-highlight.highlight-pulse, .content-highlight-marker.highlight-pulse, .content-highlight-underline.highlight-pulse { animation: highlight-pulse-animation 1.5s ease-in-out; }
+.reader-html .content-highlight, .reader-markdown .content-highlight, .reader-html .content-highlight-marker, .reader-markdown .content-highlight-marker, .reader-html .content-highlight-underline, .reader-markdown .content-highlight-underline { color: inherit; }
+.reader-html .content-highlight, .reader-markdown .content-highlight, .reader-html .content-highlight-marker, .reader-markdown .content-highlight-marker { text-decoration: none; }
+/* Three-level highlight colors */
+.content-highlight-marker.level-mine, .content-highlight.level-mine { background: color-mix(in srgb, var(--highlight-color-mine, #ffff00) 35%, transparent); box-shadow: 0 0 8px color-mix(in srgb, var(--highlight-color-mine, #ffff00) 20%, transparent); }
+.content-highlight-marker.level-mine:hover, .content-highlight.level-mine:hover { background: color-mix(in srgb, var(--highlight-color-mine, #ffff00) 50%, transparent); box-shadow: 0 0 12px color-mix(in srgb, var(--highlight-color-mine, #ffff00) 30%, transparent); }
+.content-highlight-marker.level-friends, .content-highlight.level-friends { background: color-mix(in srgb, var(--highlight-color-friends, #f97316) 35%, transparent); box-shadow: 0 0 8px color-mix(in srgb, var(--highlight-color-friends, #f97316) 20%, transparent); }
+.content-highlight-marker.level-friends:hover, .content-highlight.level-friends:hover { background: color-mix(in srgb, var(--highlight-color-friends, #f97316) 50%, transparent); box-shadow: 0 0 12px color-mix(in srgb, var(--highlight-color-friends, #f97316) 30%, transparent); }
+.content-highlight-marker.level-nostrverse, .content-highlight.level-nostrverse { background: color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 35%, transparent); box-shadow: 0 0 8px color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 20%, transparent); }
+.content-highlight-marker.level-nostrverse:hover, .content-highlight.level-nostrverse:hover { background: color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 50%, transparent); box-shadow: 0 0 12px color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 30%, transparent); }
+/* Underline styles for three levels */
+.content-highlight-underline.level-mine { text-decoration-color: color-mix(in srgb, var(--highlight-color-mine, #ffff00) 80%, transparent); }
+.content-highlight-underline.level-mine:hover { text-decoration-color: var(--highlight-color-mine, #ffff00); }
+.content-highlight-underline.level-friends { text-decoration-color: color-mix(in srgb, var(--highlight-color-friends, #f97316) 80%, transparent); }
+.content-highlight-underline.level-friends:hover { text-decoration-color: var(--highlight-color-friends, #f97316); }
+.content-highlight-underline.level-nostrverse { text-decoration-color: color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 80%, transparent); }
+.content-highlight-underline.level-nostrverse:hover { text-decoration-color: var(--highlight-color-nostrverse, #9333ea); }
+/* Ensure highlights work in both light and dark mode */
+@media (prefers-color-scheme: light) {
+  .content-highlight, .content-highlight-marker { background: rgba(var(--highlight-rgb, 255, 255, 0), 0.4); box-shadow: 0 0 6px rgba(var(--highlight-rgb, 255, 255, 0), 0.15); }
+  .content-highlight:hover, .content-highlight-marker:hover { background: rgba(var(--highlight-rgb, 255, 255, 0), 0.55); box-shadow: 0 0 10px rgba(var(--highlight-rgb, 255, 255, 0), 0.25); }
+  .content-highlight-underline { text-decoration-color: rgba(var(--highlight-rgb, 255, 255, 0), 0.9); }
+  .content-highlight-underline:hover { text-decoration-color: rgba(var(--highlight-rgb, 255, 255, 0), 1); }
+  /* Three-level overrides for light mode */
+  .content-highlight-marker.level-mine, .content-highlight.level-mine { background: color-mix(in srgb, var(--highlight-color-mine, #ffff00) 40%, transparent); box-shadow: 0 0 6px color-mix(in srgb, var(--highlight-color-mine, #ffff00) 15%, transparent); }
+  .content-highlight-marker.level-mine:hover, .content-highlight.level-mine:hover { background: color-mix(in srgb, var(--highlight-color-mine, #ffff00) 55%, transparent); box-shadow: 0 0 10px color-mix(in srgb, var(--highlight-color-mine, #ffff00) 25%, transparent); }
+  .content-highlight-marker.level-friends, .content-highlight.level-friends { background: color-mix(in srgb, var(--highlight-color-friends, #f97316) 40%, transparent); box-shadow: 0 0 6px color-mix(in srgb, var(--highlight-color-friends, #f97316) 15%, transparent); }
+  .content-highlight-marker.level-friends:hover, .content-highlight.level-friends:hover { background: color-mix(in srgb, var(--highlight-color-friends, #f97316) 55%, transparent); box-shadow: 0 0 10px color-mix(in srgb, var(--highlight-color-friends, #f97316) 25%, transparent); }
+  .content-highlight-marker.level-nostrverse, .content-highlight.level-nostrverse { background: color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 40%, transparent); box-shadow: 0 0 6px color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 15%, transparent); }
+  .content-highlight-marker.level-nostrverse:hover, .content-highlight.level-nostrverse:hover { background: color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 55%, transparent); box-shadow: 0 0 10px color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 25%, transparent); }
+  .content-highlight-underline.level-mine { text-decoration-color: color-mix(in srgb, var(--highlight-color-mine, #ffff00) 90%, transparent); }
+  .content-highlight-underline.level-friends { text-decoration-color: color-mix(in srgb, var(--highlight-color-friends, #f97316) 90%, transparent); }
+  .content-highlight-underline.level-nostrverse { text-decoration-color: color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 90%, transparent); }
+  .highlight-indicator { background: rgba(100, 108, 255, 0.15); border-color: rgba(100, 108, 255, 0.4); }
+}
+
+