diff --git a/index.html b/index.html
index 0e17658..8062be8 100644
--- a/index.html
+++ b/index.html
@@ -8,6 +8,10 @@
     />
     <meta name="theme-color" content="#1d2021" />
     <title>ZenNotes</title>
+    <!-- Bundled typography fonts (Ubuntu Sans / Mono): the declarations are
+         a few KB and WebKit only fetches a woff2 subset once text is drawn
+         in a bundled family, so cold start pays for the declarations alone. -->
+    <link rel="stylesheet" href="/fonts/fonts.css" />
     <script>
       // Pre-module bootstrap. Must run before ANY app code: the app-core
       // store reads localStorage at module-evaluation time, and Rollup chunk
diff --git a/package-lock.json b/package-lock.json
index b45de6c..4c93a29 100644
--- a/package-lock.json
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       "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
       "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=0.10.0"
@@ -7299,6 +7589,7 @@
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.2.tgz",
       "integrity": "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8.6"
@@ -7745,6 +8036,7 @@
       "version": "3.6.0",
       "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.6.0.tgz",
       "integrity": "sha512-hOS089on8RduqdbhvQ5Z37A0ESjsqz6qnRcffsMU3495FuTdqSm+7bhJ29JvIOsBDEEnan5DPu9t3To9VRlMzA==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "picomatch": "^2.2.1"
@@ -8094,6 +8386,54 @@
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
       "license": "MIT"
     },
+    "node_modules/sass": {
+      "version": "1.103.1",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.103.1.tgz",
+      "integrity": "sha512-9icZURbP51S6S0QGoyaeqk9uB06GNWxsFYWfH5RgpFgqK5FA8tJcM3AdVxrZEVJ7dz+L87nG95gBKf4VuaMHGw==",
+      "license": "MIT",
+      "dependencies": {
+        "chokidar": "^5.0.0",
+        "immutable": "^5.1.5",
+        "source-map-js": ">=0.6.2 <2.0.0"
+      },
+      "bin": {
+        "sass": "sass.js"
+      },
+      "engines": {
+        "node": ">=20.19.0"
+      },
+      "optionalDependencies": {
+        "@parcel/watcher": "^2.4.1"
+      }
+    },
+    "node_modules/sass/node_modules/chokidar": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-5.0.0.tgz",
+      "integrity": "sha512-TQMmc3w+5AxjpL8iIiwebF73dRDF4fBIieAqGn9RGCWaEVwQ6Fb2cGe31Yns0RRIzii5goJ1Y7xbMwo1TxMplw==",
+      "license": "MIT",
+      "dependencies": {
+        "readdirp": "^5.0.0"
+      },
+      "engines": {
+        "node": ">= 20.19.0"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
+    "node_modules/sass/node_modules/readdirp": {
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-5.1.1.tgz",
+      "integrity": "sha512-Kko+Y5XQ6fM+Ce3dq3m9YGxnacYZYl9cA1wZjaF3Vbry2L3i1qVg8+CAgNPsXRArPMUMCaOR7oa9Nqntc43JKA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 20.19.0"
+      },
+      "funding": {
+        "type": "individual",
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
     "node_modules/sax": {
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.1.4.tgz",
@@ -8237,6 +8577,16 @@
       "integrity": "sha512-cEmp9QeXXRmjj/rVp9oyiqcvyocWab/HaoN4+bwFeZ7QzykJD6L3yD4v12K1x0tHpqRqVpJevN3gW7kyM39Bqg==",
       "license": "MIT"
     },
+    "node_modules/string_decoder": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "~5.2.0"
+      }
+    },
     "node_modules/string-width": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
@@ -8252,16 +8602,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/string_decoder": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
-      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "safe-buffer": "~5.2.0"
-      }
-    },
     "node_modules/stringify-entities": {
       "version": "4.0.4",
       "resolved": "https://registry.npmjs.org/stringify-entities/-/stringify-entities-4.0.4.tgz",
@@ -8515,6 +8855,7 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
       "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "is-number": "^7.0.0"
diff --git a/package.json b/package.json
index bbb300d..6823b35 100644
--- a/package.json
+++ b/package.json
@@ -88,7 +88,8 @@
   },
   "overrides": {
     "@excalidraw/excalidraw": {
-      "nanoid": "3.3.18"
+      "nanoid": "3.3.18",
+      "sass": "1.103.1"
     },
     "@excalidraw/mermaid-to-excalidraw": {
       "@mermaid-js/parser": "1.2.1",
diff --git a/public/fonts/UFL.txt b/public/fonts/UFL.txt
new file mode 100644
index 0000000..ae78a8f
--- /dev/null
+++ b/public/fonts/UFL.txt
@@ -0,0 +1,96 @@
+-------------------------------
+UBUNTU FONT LICENCE Version 1.0
+-------------------------------
+
+PREAMBLE
+This licence allows the licensed fonts to be used, studied, modified and
+redistributed freely. The fonts, including any derivative works, can be
+bundled, embedded, and redistributed provided the terms of this licence
+are met. The fonts and derivatives, however, cannot be released under
+any other licence. The requirement for fonts to remain under this
+licence does not require any document created using the fonts or their
+derivatives to be published under this licence, as long as the primary
+purpose of the document is not to be a vehicle for the distribution of
+the fonts.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this licence and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Original Version" refers to the collection of Font Software components
+as received under this licence.
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to
+a new environment.
+
+"Copyright Holder(s)" refers to all individuals and companies who have a
+copyright ownership of the Font Software.
+
+"Substantially Changed" refers to Modified Versions which can be easily
+identified as dissimilar to the Font Software by users of the Font
+Software comparing the Original Version with the Modified Version.
+
+To "Propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification and with or without charging
+a redistribution fee), making available to the public, and in some
+countries other activities as well.
+
+PERMISSION & CONDITIONS
+This licence does not grant any rights under trademark law and all such
+rights are reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of the Font Software, to propagate the Font Software, subject to
+the below conditions:
+
+1) Each copy of the Font Software must contain the above copyright
+notice and this licence. These can be included either as stand-alone
+text files, human-readable headers or in the appropriate machine-
+readable metadata fields within text or binary files as long as those
+fields can be easily viewed by the user.
+
+2) The font name complies with the following:
+(a) The Original Version must retain its name, unmodified.
+(b) Modified Versions which are Substantially Changed must be renamed to
+avoid use of the name of the Original Version or similar names entirely.
+(c) Modified Versions which are not Substantially Changed must be
+renamed to both (i) retain the name of the Original Version and (ii) add
+additional naming elements to distinguish the Modified Version from the
+Original Version. The name of such Modified Versions must be the name of
+the Original Version, with "derivative X" where X represents the name of
+the new work, appended to that name.
+
+3) The name(s) of the Copyright Holder(s) and any contributor to the
+Font Software shall not be used to promote, endorse or advertise any
+Modified Version, except (i) as required by this licence, (ii) to
+acknowledge the contribution(s) of the Copyright Holder(s) or (iii) with
+their explicit written permission.
+
+4) The Font Software, modified or unmodified, in part or in whole, must
+be distributed entirely under this licence, and must not be distributed
+under any other licence. The requirement for fonts to remain under this
+licence does not affect any document created using the Font Software,
+except any version of the Font Software extracted from a document
+created using the Font Software may only be distributed under this
+licence.
+
+TERMINATION
+This licence becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER
+DEALINGS IN THE FONT SOFTWARE.
diff --git a/public/fonts/fonts.css b/public/fonts/fonts.css
new file mode 100644
index 0000000..271b39b
--- /dev/null
+++ b/public/fonts/fonts.css
@@ -0,0 +1,232 @@
+/* Ubuntu Sans + Ubuntu Sans Mono (variable), bundled so the
+ * Typography menu offers decent fonts on devices where installing any is
+ * impossible. Files come from Google Fonts; licence: fonts/UFL.txt.
+ * Subsets download lazily and only when one of these families is chosen. */
+/* ubuntu-sans italic cyrillic-ext */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: italic;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-italic-cyrillic-ext.woff2) format('woff2');
+  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
+}
+/* ubuntu-sans italic cyrillic */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: italic;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-italic-cyrillic.woff2) format('woff2');
+  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+/* ubuntu-sans italic greek-ext */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: italic;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-italic-greek-ext.woff2) format('woff2');
+  unicode-range: U+1F00-1FFF;
+}
+/* ubuntu-sans italic greek */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: italic;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-italic-greek.woff2) format('woff2');
+  unicode-range: U+0370-0377, U+037A-037F, U+0384-038A, U+038C, U+038E-03A1, U+03A3-03FF;
+}
+/* ubuntu-sans italic latin-ext */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: italic;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-italic-latin-ext.woff2) format('woff2');
+  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* ubuntu-sans italic latin */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: italic;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-italic-latin.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* ubuntu-sans normal cyrillic-ext */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: normal;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-normal-cyrillic-ext.woff2) format('woff2');
+  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
+}
+/* ubuntu-sans normal cyrillic */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: normal;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-normal-cyrillic.woff2) format('woff2');
+  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+/* ubuntu-sans normal greek-ext */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: normal;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-normal-greek-ext.woff2) format('woff2');
+  unicode-range: U+1F00-1FFF;
+}
+/* ubuntu-sans normal greek */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: normal;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-normal-greek.woff2) format('woff2');
+  unicode-range: U+0370-0377, U+037A-037F, U+0384-038A, U+038C, U+038E-03A1, U+03A3-03FF;
+}
+/* ubuntu-sans normal latin-ext */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: normal;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-normal-latin-ext.woff2) format('woff2');
+  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* ubuntu-sans normal latin */
+@font-face {
+  font-family: 'Ubuntu Sans';
+  font-style: normal;
+  font-weight: 100 800;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-normal-latin.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* ubuntu-sans-mono italic cyrillic-ext */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: italic;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-italic-cyrillic-ext.woff2) format('woff2');
+  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
+}
+/* ubuntu-sans-mono italic cyrillic */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: italic;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-italic-cyrillic.woff2) format('woff2');
+  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+/* ubuntu-sans-mono italic greek-ext */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: italic;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-italic-greek-ext.woff2) format('woff2');
+  unicode-range: U+1F00-1FFF;
+}
+/* ubuntu-sans-mono italic greek */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: italic;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-italic-greek.woff2) format('woff2');
+  unicode-range: U+0370-0377, U+037A-037F, U+0384-038A, U+038C, U+038E-03A1, U+03A3-03FF;
+}
+/* ubuntu-sans-mono italic latin-ext */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: italic;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-italic-latin-ext.woff2) format('woff2');
+  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* ubuntu-sans-mono italic latin */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: italic;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-italic-latin.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* ubuntu-sans-mono normal cyrillic-ext */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: normal;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-normal-cyrillic-ext.woff2) format('woff2');
+  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
+}
+/* ubuntu-sans-mono normal cyrillic */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: normal;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-normal-cyrillic.woff2) format('woff2');
+  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+/* ubuntu-sans-mono normal greek-ext */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: normal;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-normal-greek-ext.woff2) format('woff2');
+  unicode-range: U+1F00-1FFF;
+}
+/* ubuntu-sans-mono normal greek */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: normal;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-normal-greek.woff2) format('woff2');
+  unicode-range: U+0370-0377, U+037A-037F, U+0384-038A, U+038C, U+038E-03A1, U+03A3-03FF;
+}
+/* ubuntu-sans-mono normal latin-ext */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: normal;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-normal-latin-ext.woff2) format('woff2');
+  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* ubuntu-sans-mono normal latin */
+@font-face {
+  font-family: 'Ubuntu Sans Mono';
+  font-style: normal;
+  font-weight: 400 700;
+  font-display: swap;
+  src: url(/fonts/ubuntu-sans-mono-normal-latin.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
diff --git a/public/fonts/ubuntu-sans-italic-cyrillic-ext.woff2 b/public/fonts/ubuntu-sans-italic-cyrillic-ext.woff2
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diff --git a/src/bridge/mobile-bridge.ts b/src/bridge/mobile-bridge.ts
index 661daf9..1ab3efd 100644
--- a/src/bridge/mobile-bridge.ts
+++ b/src/bridge/mobile-bridge.ts
@@ -133,6 +133,7 @@ import {
   saveProfile
 } from './remote-workspace'
 import { folderForRelativePath, posixNormalize, sanitizeNoteTitle } from './vault-core'
+import { TYPOGRAPHY_FONT_FAMILIES } from './typography-fonts'
 import { isPhoneDevice } from '../viewport'
 
 /**
@@ -866,19 +867,10 @@ export const mobileBridge: ZenBridge = {
 
   platform: async () => 'darwin' as const,
   platformSync: () => 'darwin' as const,
-  listSystemFonts: async () => [
-    'Avenir',
-    'Charter',
-    'Georgia',
-    'Helvetica Neue',
-    'Iowan Old Style',
-    'Menlo',
-    'New York',
-    'Palatino',
-    'SF Mono',
-    'SF Pro Text',
-    'Times New Roman'
-  ],
+  // A curated list (WebKit cannot enumerate fonts), so a font installed on
+  // the device never shows up here: the Ubuntu families ship with the app
+  // instead (typography-fonts.ts, public/fonts).
+  listSystemFonts: async () => [...TYPOGRAPHY_FONT_FAMILIES],
   getAppIconDataUrl: async () => null,
   zoomInApp: async () => 1,
   zoomOutApp: async () => 1,
diff --git a/src/bridge/typography-fonts.test.ts b/src/bridge/typography-fonts.test.ts
new file mode 100644
index 0000000..ba33611
--- /dev/null
+++ b/src/bridge/typography-fonts.test.ts
@@ -0,0 +1,89 @@
+import assert from 'node:assert/strict'
+import { readdirSync, readFileSync } from 'node:fs'
+import test from 'node:test'
+import { BUNDLED_FONT_FAMILIES, TYPOGRAPHY_FONT_FAMILIES } from './typography-fonts.ts'
+
+const FONTS_DIR = new URL('../../public/fonts/', import.meta.url)
+const INDEX_HTML = new URL('../../index.html', import.meta.url)
+const LATIN_RANGE = 'U+0000-00FF'
+
+type DeclaredFace = {
+  family: string
+  style: string
+  url: string
+  unicodeRange: string
+}
+
+function descriptor(block: string, name: string): string {
+  const match = new RegExp(`${name}:\\s*([^;]+);`).exec(block)
+  assert.ok(match, `@font-face without ${name}: ${block.trim()}`)
+  return match[1].trim()
+}
+
+function declaredFaces(): DeclaredFace[] {
+  const css = readFileSync(new URL('fonts.css', FONTS_DIR), 'utf8')
+  return [...css.matchAll(/@font-face\s*\{([^}]*)\}/g)].map(([, block]) => ({
+    family: descriptor(block, 'font-family').replace(/^'|'$/g, ''),
+    style: descriptor(block, 'font-style'),
+    url: /url\(([^)]+)\)/.exec(descriptor(block, 'src'))?.[1] ?? '',
+    unicodeRange: descriptor(block, 'unicode-range')
+  }))
+}
+
+test('every Typography font menu offers both bundled families', () => {
+  for (const family of BUNDLED_FONT_FAMILIES) {
+    assert.ok(TYPOGRAPHY_FONT_FAMILIES.includes(family), `${family} is not offered`)
+  }
+  assert.equal(new Set(TYPOGRAPHY_FONT_FAMILIES).size, TYPOGRAPHY_FONT_FAMILIES.length)
+})
+
+test('each bundled family has upright and italic faces that cover Latin', () => {
+  const faces = declaredFaces()
+  for (const family of BUNDLED_FONT_FAMILIES) {
+    for (const style of ['normal', 'italic']) {
+      const latin = faces.find(
+        (face) =>
+          face.family === family &&
+          face.style === style &&
+          face.unicodeRange.split(/,\s*/).includes(LATIN_RANGE)
+      )
+      assert.ok(latin, `${family} has no ${style} Latin face`)
+    }
+  }
+})
+
+test('fonts.css declares faces only for families the menus offer', () => {
+  const offered = new Set<string>(BUNDLED_FONT_FAMILIES)
+  for (const face of declaredFaces()) {
+    assert.ok(offered.has(face.family), `${face.family} is declared but never offered`)
+  }
+})
+
+test('every face loads a shipped woff2 and every shipped woff2 is used', () => {
+  const faces = declaredFaces()
+  const referenced = new Set<string>()
+  for (const face of faces) {
+    // Root-relative: index.html sits at the WebView root (capacitor://localhost/).
+    assert.match(face.url, /^\/fonts\/[a-z0-9-]+\.woff2$/, `unexpected face url ${face.url}`)
+    referenced.add(face.url.slice('/fonts/'.length))
+  }
+  const shipped = readdirSync(FONTS_DIR).filter((name) => name.endsWith('.woff2'))
+  assert.deepEqual([...referenced].sort(), [...shipped].sort())
+  for (const name of shipped) {
+    const signature = readFileSync(new URL(name, FONTS_DIR)).subarray(0, 4).toString('latin1')
+    assert.equal(signature, 'wOF2', `${name} is not a woff2 file`)
+  }
+})
+
+test('the Ubuntu Font Licence ships beside the fonts', () => {
+  const licence = readFileSync(new URL('UFL.txt', FONTS_DIR), 'utf8')
+  assert.match(licence, /UBUNTU FONT LICENCE Version 1\.0/)
+})
+
+test('index.html links the declarations ahead of the app entry', () => {
+  const html = readFileSync(INDEX_HTML, 'utf8')
+  const link = html.indexOf('<link rel="stylesheet" href="/fonts/fonts.css" />')
+  const entry = html.indexOf('<script type="module"')
+  assert.ok(link >= 0, 'index.html does not link /fonts/fonts.css')
+  assert.ok(entry > link, 'the font declarations load after the app entry')
+})
diff --git a/src/bridge/typography-fonts.ts b/src/bridge/typography-fonts.ts
new file mode 100644
index 0000000..b121fec
--- /dev/null
+++ b/src/bridge/typography-fonts.ts
@@ -0,0 +1,27 @@
+/**
+ * The families Settings → Typography offers for the interface, text and
+ * monospace fonts (`window.zen.listSystemFonts`). WKWebView has no font
+ * enumeration, so the list is curated.
+ *
+ * The bundled families are not part of iOS: public/fonts ships them as
+ * woff2 subsets with @font-face rules in fonts.css, linked from index.html.
+ * They are the files the Android shell ships, under the Ubuntu Font Licence
+ * 1.0 (public/fonts/UFL.txt). A family offered here without its faces would
+ * fall back to the next font in the stack without a word.
+ */
+export const BUNDLED_FONT_FAMILIES = ['Ubuntu Sans', 'Ubuntu Sans Mono'] as const
+
+export const TYPOGRAPHY_FONT_FAMILIES: readonly string[] = [
+  'Avenir',
+  'Charter',
+  'Georgia',
+  'Helvetica Neue',
+  'Iowan Old Style',
+  'Menlo',
+  'New York',
+  'Palatino',
+  'SF Mono',
+  'SF Pro Text',
+  'Times New Roman',
+  ...BUNDLED_FONT_FAMILIES
+]