v1.1.6 - Multi-window, single-instance file handling, line height setting

- Hide asset folders (_res, _resources, _attachments, _assets, assets) from notebook listing
- Show notebook path in "All Notes" view
- Sub-notebook context menu + smart parent detection for nested notebook creation

README.md

@@ -5,25 +5,37 @@ A local markdown note-taking app built with Tauri, SvelteKit, and Rust.
 Your notes are stored as standard Markdown files on your local filesystem.
 No cloud, no lock-in.
 
-## Download
+## Download (v1.1.5)
 
 ### Linux
 
-#### Arch / Manjaro / Fedora / openSUSE
+#### Arch / Manjaro (AUR)
 
-[Download AppImage](https://download.helixnotes.com/releases/v1.1.1/HelixNotes_1.1.1_amd64.AppImage)
+```bash
+yay -S helixnotes-appimage-bin
+```
 
-#### Debian / Ubuntu / Mint
+#### Debian / Ubuntu / Mint (APT)
 
-[Download .deb](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.1.1/HelixNotes_1.1.1_amd64.deb) — Ubuntu 22.04+
+```bash
+curl -fsSL https://repo.arkhost.com/gpg.key | sudo gpg --dearmor -o /usr/share/keyrings/arkhost.gpg && echo "deb [signed-by=/usr/share/keyrings/arkhost.gpg arch=amd64] https://repo.arkhost.com stable main" | sudo tee /etc/apt/sources.list.d/helixnotes.list && sudo apt update && sudo apt install helix-notes
+```
+
+#### AppImage (Arch, Fedora 43+, openSUSE Tumbleweed)
+
+[Download AppImage](https://download.helixnotes.com/releases/v1.1.5/HelixNotes_1.1.5_amd64.AppImage)
+
+#### .deb (manual)
+
+[Download .deb](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.1.5/HelixNotes_1.1.5_amd64.deb) — Ubuntu 22.04+
 
 ### Windows
 
-[Download Installer](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.1.1/HelixNotes_1.1.1_x64-setup.exe) — Windows 10/11
+[Download Installer](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.1.5/HelixNotes_1.1.5_x64-setup.exe) — Windows 10/11
 
 ### macOS
 
-[Download .dmg](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.1.1/HelixNotes_1.1.1_x64.dmg) — macOS 12+ (Intel, runs on Apple Silicon via Rosetta)
+[Download .dmg](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.1.5/HelixNotes_1.1.5_x64.dmg) — macOS (Intel, runs on Apple Silicon via Rosetta)
 
 ---
 
@@ -31,9 +43,10 @@ All releases: [codeberg.org/ArkHost/HelixNotes/releases](https://codeberg.org/Ar
 
 ## Features
 
-- **Markdown editor** with rich formatting toolbar, slash commands, and source mode
+- **Markdown editor** with rich formatting toolbar, slash commands, source mode toggle, and code syntax highlighting
 - **Wiki-links** — link notes with `[[Note Title]]` syntax
 - **Graph view** — visualize connections between your notes
+- **Outline panel** — heading navigation for long notes
 - **Full-text search** powered by Tantivy
 - **Math support** — KaTeX rendering for inline and block equations
 - **Daily notes** — one-click button to create or open today's note
@@ -49,6 +62,8 @@ All releases: [codeberg.org/ArkHost/HelixNotes/releases](https://codeberg.org/Ar
 - **View mode** — read-only toggle for distraction-free reading
 - **Local** — everything stays on your machine
 
+Full documentation: [helixnotes.com/docs](https://helixnotes.com/docs.html)
+
 ## Tech Stack
 
 - **Frontend**: SvelteKit (Svelte 5) + TailwindCSS v4 + TipTap v3
@@ -77,6 +92,13 @@ pnpm tauri dev
 pnpm tauri build
 ```
 
+## Screenshots
+
+![Editor](https://cdn.helixnotes.com/assets/screenshots/screenshot-1.png)
+![Settings](https://cdn.helixnotes.com/assets/screenshots/screenshot-2.png)
+![Graph View](https://cdn.helixnotes.com/assets/screenshots/screenshot-3.png)
+![AI Actions](https://cdn.helixnotes.com/assets/screenshots/screenshot-4.png)
+
 ## License
 
 [AGPL-3.0](https://codeberg.org/ArkHost/HelixNotes/src/branch/main/LICENSE)

package.json

@@ -2,7 +2,7 @@
   "name": "helixnotes",
   "private": true,
   "license": "AGPL-3.0-or-later",
-  "version": "1.1.2",
+  "version": "1.1.6",
   "type": "module",
   "scripts": {
     "dev": "vite dev",

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "helixnotes"
-version = "1.1.2"
+version = "1.1.6"
 description = "Local markdown note-taking app"
 authors = ["HelixNotes"]
 license = "AGPL-3.0-or-later"
@@ -20,7 +20,6 @@ tauri-plugin-log = "2"
 tauri-plugin-dialog = "2"
 tauri-plugin-fs = "2"
 tauri-plugin-opener = "2"
-tauri-plugin-updater = "2"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 serde_yaml = "0.9"
@@ -35,7 +34,11 @@ tokio = { version = "1", features = ["full"] }
 dirs = "6"
 regex = "1"
 zip = { version = "2", default-features = false, features = ["deflate"] }
-reqwest = { version = "0.12", features = ["json", "stream"] }
+reqwest = { version = "0.12", default-features = false, features = ["json", "stream", "rustls-tls"] }
 futures = "0.3"
 rayon = "1"
+rustls = { version = "0.23", default-features = false, features = ["ring", "logging", "std", "tls12"] }
+
+[target.'cfg(not(target_os = "android"))'.dependencies]
+tauri-plugin-updater = "2"
 tauri-plugin-single-instance = "2"

src-tauri/capabilities/default.json

@@ -2,7 +2,7 @@
   "$schema": "../gen/schemas/desktop-schema.json",
   "identifier": "default",
   "description": "HelixNotes default capabilities",
-  "windows": ["main"],
+  "windows": ["main", "note-*"],
   "permissions": [
     "core:default",
     "core:window:default",
@@ -12,6 +12,8 @@
     "core:window:allow-close",
     "core:window:allow-is-maximized",
     "core:window:allow-set-decorations",
+    "core:window:allow-set-title",
+    "core:webview:allow-create-webview-window",
     "dialog:default",
     "dialog:allow-open",
     "dialog:allow-save",
@@ -44,7 +46,6 @@
         { "url": "mailto:*" }
       ]
     },
-    "opener:allow-reveal-item-in-dir",
+    "opener:allow-reveal-item-in-dir"
-    "updater:default"
   ]
 }

src-tauri/capabilities/desktop.json

@@ -0,0 +1,10 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "desktop",
+  "description": "Desktop-only capabilities",
+  "platforms": ["linux", "macOS", "windows"],
+  "windows": ["main"],
+  "permissions": [
+    "updater:default"
+  ]
+}

src-tauri/src/commands.rs

@@ -45,6 +45,12 @@ pub fn get_app_config(state: State<'_, AppState>) -> Result<AppConfig, String> {
     Ok(config.clone())
 }
 
+#[tauri::command]
+pub fn get_pending_open_file(state: State<'_, AppState>) -> Result<Option<String>, String> {
+    let mut pending = state.pending_open_file.lock().map_err(|e| e.to_string())?;
+    Ok(pending.take())
+}
+
 #[tauri::command]
 pub fn set_theme(state: State<'_, AppState>, theme: String) -> Result<(), String> {
     let mut config = state.config.lock().map_err(|e| e.to_string())?;
@@ -77,6 +83,14 @@ pub fn set_font_family(state: State<'_, AppState>, family: String) -> Result<(),
     Ok(())
 }
 
+#[tauri::command]
+pub fn set_line_height(state: State<'_, AppState>, height: f64) -> Result<(), String> {
+    let mut config = state.config.lock().map_err(|e| e.to_string())?;
+    config.line_height = Some(height);
+    save_app_config(&config)?;
+    Ok(())
+}
+
 // ── Notebooks ──
 
 #[tauri::command]
@@ -1450,9 +1464,20 @@ pub fn ai_ask(
 
 // ── Helpers ──
 
+static ANDROID_CONFIG_DIR: std::sync::OnceLock<std::path::PathBuf> = std::sync::OnceLock::new();
+
+pub fn set_android_config_dir(path: std::path::PathBuf) {
+    let _ = ANDROID_CONFIG_DIR.set(path);
+}
+
 fn app_config_path() -> Result<std::path::PathBuf, String> {
-    let config_dir = dirs::config_dir().ok_or("Cannot find config directory")?;
+    let app_dir = if let Some(config_dir) = dirs::config_dir() {
-    let app_dir = config_dir.join("helixnotes");
+        config_dir.join("helixnotes")
+    } else if let Some(android_dir) = ANDROID_CONFIG_DIR.get() {
+        android_dir.join("helixnotes")
+    } else {
+        return Err("Config directory not available yet".to_string());
+    };
     std::fs::create_dir_all(&app_dir).map_err(|e| e.to_string())?;
     Ok(app_dir.join("config.json"))
 }

src-tauri/src/lib.rs

@@ -8,32 +8,33 @@ mod types;
 mod vault;
 
 use state::AppState;
+#[allow(unused_imports)]
+use tauri::{Emitter, Manager};
+
+#[cfg(not(target_os = "android"))]
 use tauri::{
     image::Image,
     menu::{MenuBuilder, MenuItemBuilder},
     tray::TrayIconBuilder,
-    Manager,
 };
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
+    rustls::crypto::ring::default_provider()
+        .install_default()
+        .expect("Failed to install rustls crypto provider");
+
     let config = commands::load_app_config();
+    #[cfg(not(target_os = "android"))]
     let show_tray = config.show_tray_icon;
+    #[cfg(not(target_os = "android"))]
     let close_to_tray = config.close_to_tray && show_tray;
     let app_state = AppState::new(config);
 
     let mut builder = tauri::Builder::default()
-        .plugin(tauri_plugin_single_instance::init(|app, _args, _cwd| {
-            if let Some(window) = app.get_webview_window("main") {
-                let _ = window.show();
-                let _ = window.unminimize();
-                let _ = window.set_focus();
-            }
-        }))
         .plugin(tauri_plugin_dialog::init())
         .plugin(tauri_plugin_fs::init())
         .plugin(tauri_plugin_opener::init())
-        .plugin(tauri_plugin_updater::Builder::new().build())
         .setup(move |app| {
             if cfg!(debug_assertions) {
                 app.handle().plugin(
@@ -43,10 +44,43 @@ pub fn run() {
                 )?;
             }
 
+            // On Android, set config dir from Tauri's path resolver
+            #[cfg(target_os = "android")]
+            {
+                if let Ok(config_dir) = app.path().config_dir() {
+                    commands::set_android_config_dir(config_dir);
+                } else if let Ok(data_dir) = app.path().data_dir() {
+                    commands::set_android_config_dir(data_dir);
+                }
+            }
+
+            #[cfg(not(target_os = "android"))]
             if show_tray {
                 setup_tray(app)?;
             }
 
+            // Check CLI args for a .md file path on initial launch
+            #[cfg(not(target_os = "android"))]
+            {
+                let file_arg = std::env::args().skip(1).find(|a| {
+                    let a = a.trim();
+                    !a.starts_with('-') && a.ends_with(".md")
+                });
+                if let Some(path) = file_arg {
+                    let resolved = if std::path::Path::new(&path).is_absolute() {
+                        std::path::PathBuf::from(&path)
+                    } else {
+                        std::env::current_dir().unwrap_or_default().join(&path)
+                    };
+                    if let Some(resolved_str) = resolved.to_str() {
+                        let app_state = app.state::<AppState>();
+                        let _ = app_state.pending_open_file.lock().map(|mut p| {
+                            *p = Some(resolved_str.to_string());
+                        });
+                    }
+                }
+            }
+
             Ok(())
         })
         .manage(app_state)
@@ -57,6 +91,7 @@ pub fn run() {
             commands::set_accent_color,
             commands::set_font_size,
             commands::set_font_family,
+            commands::set_line_height,
             commands::get_notebooks,
             commands::create_notebook,
             commands::rename_notebook,
@@ -105,14 +140,61 @@ pub fn run() {
             commands::test_ai_connection,
             commands::ai_ask,
             commands::get_install_type,
+            commands::get_pending_open_file,
         ]);
 
-    if close_to_tray {
+    #[cfg(not(target_os = "android"))]
-        builder = builder.on_window_event(|window, event| {
+    {
-            if let tauri::WindowEvent::CloseRequested { api, .. } = event {
+        builder = builder.plugin(tauri_plugin_single_instance::init(|app, args, cwd| {
+            // Always show/focus the main window
+            if let Some(window) = app.get_webview_window("main") {
+                let _ = window.show();
+                let _ = window.unminimize();
+                let _ = window.set_focus();
+            }
+
+            // Extract .md file path from args (args[0] is the binary)
+            let file_path = args.iter().skip(1).find(|arg| {
+                let a = arg.trim();
+                !a.starts_with('-') && a.ends_with(".md")
+            });
+
+            if let Some(path) = file_path {
+                let resolved = if std::path::Path::new(path.as_str()).is_absolute() {
+                    std::path::PathBuf::from(path)
+                } else {
+                    std::path::Path::new(&cwd).join(path)
+                };
+                if let Some(resolved_str) = resolved.to_str() {
+                    let _ = app.emit("open-file", resolved_str.to_string());
+                }
+            }
+        }));
+
+        builder = builder.plugin(tauri_plugin_updater::Builder::new().build());
+
+        builder = builder.on_window_event(move |window, event| {
+            match event {
+                tauri::WindowEvent::CloseRequested { api, .. } => {
+                    // Only hide to tray for the main window
+                    if close_to_tray && window.label() == "main" {
                         api.prevent_close();
                         let _ = window.hide();
                     }
+                }
+                tauri::WindowEvent::Destroyed => {
+                    // When main window is destroyed, close all note windows
+                    if window.label() == "main" {
+                        let app = window.app_handle();
+                        for (label, win) in app.webview_windows() {
+                            if label.starts_with("note-") {
+                                let _ = win.close();
+                            }
+                        }
+                    }
+                }
+                _ => {}
+            }
         });
     }
 
@@ -121,6 +203,7 @@ pub fn run() {
         .expect("error while running tauri application");
 }
 
+#[cfg(not(target_os = "android"))]
 fn setup_tray(app: &mut tauri::App) -> Result<(), Box<dyn std::error::Error>> {
     let show = MenuItemBuilder::with_id("show", "Show HelixNotes").build(app)?;
     let quit = MenuItemBuilder::with_id("quit", "Quit").build(app)?;

src-tauri/src/search/mod.rs

@@ -5,7 +5,10 @@ use std::fs;
 use std::path::Path;
 use std::sync::Mutex;
 use tantivy::collector::TopDocs;
+#[cfg(not(target_os = "android"))]
 use tantivy::directory::MmapDirectory;
+#[cfg(target_os = "android")]
+use tantivy::directory::RamDirectory;
 use tantivy::query::QueryParser;
 use tantivy::schema::*;
 use tantivy::{Index, IndexWriter, TantivyDocument};
@@ -24,9 +27,6 @@ pub struct SearchIndex {
 
 impl SearchIndex {
     pub fn new(vault_path: &str) -> Result<Self, String> {
-        let index_dir = helixnotes_dir(vault_path).join("search_index");
-        fs::create_dir_all(&index_dir).map_err(|e| e.to_string())?;
-
         let mut schema_builder = Schema::builder();
         let path_field = schema_builder.add_text_field("path", STRING | STORED);
         let title_field = schema_builder.add_text_field("title", TEXT | STORED);
@@ -34,12 +34,27 @@ impl SearchIndex {
         let tags_field = schema_builder.add_text_field("tags", TEXT | STORED);
         let schema = schema_builder.build();
 
+        // Android: use in-memory index (flock doesn't work on /storage/emulated FUSE filesystem)
+        // Desktop: use mmap directory for persistent index on disk
+        #[cfg(target_os = "android")]
+        let index = {
+            let dir = RamDirectory::create();
+            Index::open_or_create(dir, schema.clone()).map_err(|e| e.to_string())?
+        };
+        #[cfg(not(target_os = "android"))]
+        let index = {
+            let index_dir = helixnotes_dir(vault_path).join("search_index");
+            fs::create_dir_all(&index_dir).map_err(|e| e.to_string())?;
             let dir = MmapDirectory::open(&index_dir).map_err(|e| e.to_string())?;
-        let index = Index::open_or_create(dir, schema.clone()).map_err(|e| e.to_string())?;
+            Index::open_or_create(dir, schema.clone()).map_err(|e| e.to_string())?
+        };
 
-        let writer = index
+        #[cfg(target_os = "android")]
-            .writer(50_000_000)
+        let heap_size = 15_000_000;
-            .map_err(|e| e.to_string())?;
+        #[cfg(not(target_os = "android"))]
+        let heap_size = 50_000_000;
+
+        let writer = index.writer(heap_size).map_err(|e| e.to_string())?;
 
         Ok(Self {
             index,
@@ -135,8 +150,10 @@ impl SearchIndex {
         let reader = self.index.reader().map_err(|e| e.to_string())?;
         let searcher = reader.searcher();
 
-        let query_parser =
+        let query_parser = QueryParser::for_index(
-            QueryParser::for_index(&self.index, vec![self.title_field, self.body_field, self.tags_field]);
+            &self.index,
+            vec![self.title_field, self.body_field, self.tags_field],
+        );
 
         let query = query_parser
             .parse_query(query_str)

src-tauri/src/state.rs

@@ -9,6 +9,7 @@ pub struct AppState {
     pub search_index: Mutex<Option<SearchIndex>>,
     pub watcher: Mutex<Option<RecommendedWatcher>>,
     pub importing: AtomicBool,
+    pub pending_open_file: Mutex<Option<String>>,
 }
 
 impl AppState {
@@ -18,6 +19,7 @@ impl AppState {
             search_index: Mutex::new(None),
             watcher: Mutex::new(None),
             importing: AtomicBool::new(false),
+            pending_open_file: Mutex::new(None),
         }
     }
 }

src-tauri/src/types.rs

@@ -54,6 +54,8 @@ pub struct AppConfig {
     #[serde(default)]
     pub font_family: Option<String>,
     #[serde(default)]
+    pub line_height: Option<f64>,
+    #[serde(default)]
     pub compact_notes: bool,
     #[serde(default)]
     pub time_format: String,
@@ -142,6 +144,7 @@ impl Default for AppConfig {
             accent_color: None,
             font_size: None,
             font_family: None,
+            line_height: None,
             compact_notes: false,
             time_format: "relative".to_string(),
             gpu_acceleration: true,

src-tauri/src/vault/frontmatter.rs

@@ -77,6 +77,29 @@ pub fn parse_note(raw: &str, filename: &str) -> (NoteMeta, String) {
     (meta, content)
 }
 
+/// Ensure the body starts with `# Title` heading for external app compatibility.
+/// If the body already starts with `# Title`, leave it as-is.
+fn ensure_title_heading(body: &str, title: &str) -> String {
+    let trimmed = body.trim_start();
+
+    // Check if body already starts with `# Title`
+    if let Some(rest) = trimmed.strip_prefix("# ") {
+        let first_line_end = rest.find('\n').unwrap_or(rest.len());
+        let heading_text = rest[..first_line_end].trim();
+        if heading_text.eq_ignore_ascii_case(title.trim()) {
+            return body.to_string();
+        }
+    }
+
+    // Don't add heading to empty notes (new/blank notes)
+    if trimmed.is_empty() {
+        return body.to_string();
+    }
+
+    // Prepend `# Title` heading
+    format!("# {}\n\n{}", title, body)
+}
+
 pub fn serialize_frontmatter(meta: &NoteMeta) -> String {
     let tags_str = if meta.tags.is_empty() {
         "[]".to_string()
@@ -104,7 +127,8 @@ pub fn serialize_frontmatter(meta: &NoteMeta) -> String {
 
 pub fn update_note_raw(meta: &NoteMeta, body: &str) -> String {
     let fm = serialize_frontmatter(meta);
-    format!("{}{}", fm, body)
+    let body_with_heading = ensure_title_heading(body, &meta.title);
+    format!("{}{}", fm, body_with_heading)
 }
 
 /// Merge NoteMeta fields into existing frontmatter, preserving unknown YAML keys.
@@ -163,7 +187,8 @@ pub fn merge_frontmatter(original_raw: &str, meta: &NoteMeta, body: &str) -> Str
         Err(_) => return update_note_raw(meta, body),
     };
 
-    format!("---\n{}---\n{}", yaml_str, body)
+    let body_with_heading = ensure_title_heading(body, &meta.title);
+    format!("---\n{}---\n{}", yaml_str, body_with_heading)
 }
 
 fn filename_to_title(filename: &str) -> String {

src-tauri/src/vault/operations.rs

@@ -114,7 +114,13 @@ fn count_notes_in_dir(dir: &Path) -> usize {
 fn is_hidden(path: &Path) -> bool {
     path.file_name()
         .and_then(|n| n.to_str())
-        .map(|n| n.starts_with('.'))
+        .map(|n| {
+            n.starts_with('.')
+                || matches!(
+                    n,
+                    "_res" | "_resources" | "_attachments" | "_assets" | "assets" | "node_modules"
+                )
+        })
         .unwrap_or(false)
 }
 

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "../node_modules/@tauri-apps/cli/config.schema.json",
   "productName": "HelixNotes",
-  "version": "1.1.2",
+  "version": "1.1.6",
   "identifier": "com.helixnotes.app",
   "build": {
     "frontendDist": "../build",

src/app.css

@@ -158,3 +158,24 @@ body.resizing .ProseMirror {
 body.resizing {
     user-select: none;
 }
+
+/* ── Mobile (Android/iOS) ── */
+@media (max-width: 768px) {
+    html,
+    body {
+        padding-top: env(safe-area-inset-top);
+        padding-bottom: env(safe-area-inset-bottom);
+        padding-left: env(safe-area-inset-left);
+        padding-right: env(safe-area-inset-right);
+        -webkit-tap-highlight-color: transparent;
+        touch-action: manipulation;
+    }
+
+    ::-webkit-scrollbar {
+        display: none;
+    }
+
+    .resize-handle {
+        display: none !important;
+    }
+}

src/app.html

@@ -2,7 +2,10 @@
 <html lang="en">
     <head>
         <meta charset="utf-8" />
-		<meta name="viewport" content="width=device-width, initial-scale=1" />
+        <meta
+            name="viewport"
+            content="width=device-width, initial-scale=1, viewport-fit=cover, user-scalable=no, maximum-scale=1"
+        />
         %sveltekit.head%
     </head>
     <body data-sveltekit-preload-data="hover">

src/lib/api.ts

@@ -38,6 +38,10 @@ export async function setFontFamily(family: string): Promise<void> {
   return invoke("set_font_family", { family });
 }
 
+export async function setLineHeight(height: number): Promise<void> {
+  return invoke("set_line_height", { height });
+}
+
 export async function getNotebooks(): Promise<NotebookEntry[]> {
   return invoke("get_notebooks");
 }
@@ -330,3 +334,7 @@ export async function aiAsk(
 export async function getInstallType(): Promise<string> {
   return invoke("get_install_type");
 }
+
+export async function getPendingOpenFile(): Promise<string | null> {
+  return invoke("get_pending_open_file");
+}

src/lib/components/AppLayout.svelte

@@ -23,26 +23,60 @@
 		readOnly,
 		activeNote,
 		activeNotePath,
+		activeNotebook,
 		editorDirty,
 		showInfo,
 		showSettings,
-		sourceMode
+		sourceMode,
+		mobileView,
+		appConfig
 	} from '$lib/stores/app';
 
 	const appWindow = getCurrentWindow();
 	const isMac = navigator.platform.startsWith('Mac');
-	import { loadVaultState, saveVaultState, readNote, createDailyNote } from '$lib/api';
+	const isMobile = /android|ios/i.test(navigator.userAgent);
+	import { loadVaultState, saveVaultState, readNote, createDailyNote, createBackup, getPendingOpenFile } from '$lib/api';
 	import { debounce } from '$lib/utils/debounce';
+	import { openNoteWindow } from '$lib/utils/window';
+	import { get } from 'svelte/store';
 	import type { VaultState, FileEvent } from '$lib/types';
 
 	let sidebar: Sidebar;
 	let noteList: NoteList;
 	let editor: Editor;
 	let unlistenFileChange: (() => void) | null = null;
+	let unlistenOpenFile: (() => void) | null = null;
+	let backupInterval: ReturnType<typeof setInterval> | null = null;
 	let navigatingFromHistory = false;
 	let noteHistory: string[] = [];
 	let noteHistoryIndex = -1;
 
+	function parseFrequencyMs(freq: string): number {
+		switch (freq) {
+			case '6h': return 6 * 60 * 60 * 1000;
+			case '12h': return 12 * 60 * 60 * 1000;
+			case '7d': return 7 * 24 * 60 * 60 * 1000;
+			case '24h': default: return 24 * 60 * 60 * 1000;
+		}
+	}
+
+	async function checkScheduledBackup() {
+		const config = get(appConfig);
+		if (!config?.backup_enabled) return;
+		const interval = parseFrequencyMs(config.backup_frequency);
+		const last = config.last_backup_time ? new Date(config.last_backup_time).getTime() : 0;
+		if (Date.now() - last >= interval) {
+			const unlisten = await listen('backup-done', (event: any) => {
+				if (event.payload?.success) {
+					const cur = get(appConfig);
+					if (cur) appConfig.set({ ...cur, last_backup_time: new Date().toISOString() });
+				}
+				unlisten();
+			});
+			try { await createBackup(); } catch (_) { unlisten(); }
+		}
+	}
+
 	// Track note navigation in history stack
 	$effect(() => {
 		const path = $activeNotePath;
@@ -73,6 +107,22 @@
 		});
 	}
 
+	async function handleOpenFile(filePath: string) {
+		if (!filePath || !filePath.endsWith('.md')) return;
+		const config = get(appConfig);
+		const vaultRoot = config?.active_vault;
+		if (!vaultRoot || !filePath.startsWith(vaultRoot)) return;
+		try {
+			const content = await readNote(filePath);
+			$activeNote = content;
+			$activeNotePath = filePath;
+			$editorDirty = false;
+			editor?.loadNote(filePath, content.content);
+		} catch (e) {
+			console.error('Failed to open file:', e);
+		}
+	}
+
 	const persistState = debounce(async () => {
 		const state: VaultState = {
 			last_open_note: null,
@@ -98,15 +148,19 @@
 
 	function handleNoteSelected(path: string, content: string) {
 		editor?.loadNote(path, content);
+		if (isMobile) $mobileView = 'editor';
 	}
 
 	function handleViewChanged() {
 		noteList?.refresh(true);
+		if (isMobile) $mobileView = 'notelist';
 	}
 
 	async function createAndFocusNote() {
+		if (isMobile && $mobileView !== 'notelist') $mobileView = 'notelist';
 		await noteList?.handleCreateNote();
 		editor?.focusTitle();
+		if (isMobile) $mobileView = 'editor';
 	}
 
 	async function handleDailyNote() {
@@ -119,11 +173,17 @@
 			editor?.loadNote(entry.path, content.content);
 			noteList?.refresh();
 			sidebar?.refresh();
+			if (isMobile) $mobileView = 'editor';
 		} catch (e) {
 			console.error('Failed to create/open daily note:', e);
 		}
 	}
 
+	function mobileBack() {
+		if ($mobileView === 'editor') $mobileView = 'notelist';
+		else if ($mobileView === 'notelist') $mobileView = 'sidebar';
+	}
+
 	function handleMouseDown(e: MouseEvent) {
 		if (e.button === 3) { e.preventDefault(); navigateHistory(-1); }
 		if (e.button === 4) { e.preventDefault(); navigateHistory(1); }
@@ -170,10 +230,20 @@
 			e.preventDefault();
 			editor?.forceSave();
 		}
+		if (mod && e.key === 'k' && !e.shiftKey && $activeNotePath && !$sourceMode) {
+			e.preventDefault();
+			editor?.addLinkFromToolbar();
+		}
 		if (mod && e.shiftKey && e.key === 'M') {
 			e.preventDefault();
 			$sourceMode = !$sourceMode;
 		}
+		if (mod && e.shiftKey && e.key === 'W') {
+			e.preventDefault();
+			if ($activeNotePath && $activeNote) {
+				openNoteWindow($activeNotePath, $activeNote.meta.title);
+			}
+		}
 		if (e.key === 'Escape') {
 			if ($showSettings) $showSettings = false;
 			else if ($showInfo) $showInfo = false;
@@ -222,16 +292,150 @@
 			await sidebar?.refresh();
 			await noteList?.refresh(true);
 		});
+
+		// Listen for file open events (from single-instance or OS file associations)
+		unlistenOpenFile = await listen<string>('open-file', async (event) => {
+			await handleOpenFile(event.payload);
+		});
+
+		// Check for pending file from first-launch CLI args
+		try {
+			const pending = await getPendingOpenFile();
+			if (pending) await handleOpenFile(pending);
+		} catch (_) {}
+
+		// Scheduled backup: check on startup and every 5 minutes
+		checkScheduledBackup();
+		backupInterval = setInterval(checkScheduledBackup, 5 * 60 * 1000);
 	});
 
 	onDestroy(() => {
 		unlistenFileChange?.();
+		unlistenOpenFile?.();
+		if (backupInterval) clearInterval(backupInterval);
 	});
 </script>
 
-<svelte:window onkeydown={handleKeydown} onmousedown={handleMouseDown} />
+<svelte:window onkeydown={handleKeydown} onmousedown={isMobile ? undefined : handleMouseDown} />
 
-<div class="app-shell">
+{#if isMobile}
+	<!-- ═══ MOBILE LAYOUT ═══ -->
+	<div class="mobile-shell">
+		<!-- Mobile Header -->
+		<div class="mobile-header">
+			{#if $mobileView !== 'sidebar'}
+				<button class="mobile-header-btn" onclick={mobileBack}>
+					<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+						<path d="M15 18l-6-6 6-6"/>
+					</svg>
+				</button>
+			{:else}
+				<div class="mobile-header-brand">
+					<svg width="22" height="22" viewBox="0 0 48 48" fill="none">
+						<rect width="48" height="48" rx="12" fill="var(--accent)" />
+						<circle cx="16" cy="16" r="3.5" fill="white" opacity="0.9" />
+						<circle cx="32" cy="16" r="3.5" fill="white" opacity="0.9" />
+						<circle cx="16" cy="32" r="3.5" fill="white" opacity="0.9" />
+						<circle cx="32" cy="32" r="3.5" fill="white" opacity="0.9" />
+					</svg>
+				</div>
+			{/if}
+			<span class="mobile-header-title">
+				{#if $mobileView === 'sidebar'}
+					HelixNotes
+				{:else if $mobileView === 'notelist'}
+					{$activeNotebook?.name || 'All Notes'}
+				{:else}
+					{$activeNote?.meta.title || 'Untitled'}
+				{/if}
+			</span>
+			<div class="mobile-header-actions">
+				{#if $mobileView === 'editor'}
+					<button class="mobile-header-btn" class:active={$readOnly} onclick={() => ($readOnly = !$readOnly)}>
+						<svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+							{#if $readOnly}
+								<path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z" />
+								<circle cx="12" cy="12" r="3" />
+							{:else}
+								<path d="M11 4H4a2 2 0 00-2 2v14a2 2 0 002 2h14a2 2 0 002-2v-7" />
+								<path d="M18.5 2.5a2.121 2.121 0 013 3L12 15l-4 1 1-4 9.5-9.5z" />
+							{/if}
+						</svg>
+					</button>
+				{:else}
+					<button class="mobile-header-btn" onclick={createAndFocusNote}>
+						<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round">
+							<path d="M12 5v14M5 12h14" />
+						</svg>
+					</button>
+				{/if}
+				<button class="mobile-header-btn" onclick={() => ($showInfo = true)} title="Info">
+					<svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+						<circle cx="12" cy="12" r="10" />
+						<line x1="12" y1="16" x2="12" y2="12" />
+						<line x1="12" y1="8" x2="12.01" y2="8" />
+					</svg>
+				</button>
+				<button class="mobile-header-btn" onclick={() => ($showSettings = true)} title="Settings">
+					<svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+						<circle cx="12" cy="12" r="3" />
+						<path d="M19.4 15a1.65 1.65 0 00.33 1.82l.06.06a2 2 0 01-2.83 2.83l-.06-.06a1.65 1.65 0 00-1.82-.33 1.65 1.65 0 00-1 1.51V21a2 2 0 01-4 0v-.09A1.65 1.65 0 009 19.4a1.65 1.65 0 00-1.82.33l-.06.06a2 2 0 01-2.83-2.83l.06-.06A1.65 1.65 0 004.68 15a1.65 1.65 0 00-1.51-1H3a2 2 0 010-4h.09A1.65 1.65 0 004.6 9a1.65 1.65 0 00-.33-1.82l-.06-.06a2 2 0 012.83-2.83l.06.06A1.65 1.65 0 009 4.68a1.65 1.65 0 001-1.51V3a2 2 0 014 0v.09a1.65 1.65 0 001 1.51 1.65 1.65 0 001.82-.33l.06-.06a2 2 0 012.83 2.83l-.06.06A1.65 1.65 0 0019.4 9a1.65 1.65 0 001.51 1H21a2 2 0 010 4h-.09a1.65 1.65 0 00-1.51 1z" />
+					</svg>
+				</button>
+			</div>
+		</div>
+
+		<!-- Mobile Content -->
+		<div class="mobile-content">
+			<div class="mobile-panel" class:active={$mobileView === 'sidebar'}>
+				<Sidebar bind:this={sidebar} onViewChanged={handleViewChanged} />
+			</div>
+			<div class="mobile-panel" class:active={$mobileView === 'notelist'}>
+				<NoteList bind:this={noteList} onNoteSelected={handleNoteSelected} onNoteMoved={() => sidebar?.refresh()} />
+			</div>
+			<div class="mobile-panel" class:active={$mobileView === 'editor'}>
+				<Editor bind:this={editor} />
+			</div>
+		</div>
+
+		<!-- Mobile Bottom Nav -->
+		{#if $mobileView !== 'editor'}
+		<div class="mobile-bottom-nav">
+			<button class="mobile-nav-item" class:active={$mobileView === 'sidebar'} onclick={() => ($mobileView = 'sidebar')}>
+				<svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+					<path d="M22 19a2 2 0 01-2 2H4a2 2 0 01-2-2V5a2 2 0 012-2h5l2 3h9a2 2 0 012 2z" />
+				</svg>
+				<span>Notebooks</span>
+			</button>
+			<button class="mobile-nav-item" onclick={() => $showSearch = true}>
+				<svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+					<circle cx="11" cy="11" r="8" />
+					<line x1="21" y1="21" x2="16.65" y2="16.65" />
+				</svg>
+				<span>Search</span>
+			</button>
+			<button class="mobile-nav-item" onclick={handleDailyNote}>
+				<svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+					<rect x="3" y="4" width="18" height="18" rx="2" ry="2" />
+					<line x1="16" y1="2" x2="16" y2="6" />
+					<line x1="8" y1="2" x2="8" y2="6" />
+					<line x1="3" y1="10" x2="21" y2="10" />
+				</svg>
+				<span>Daily</span>
+			</button>
+			<button class="mobile-nav-item" onclick={() => ($showSettings = true)}>
+				<svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+					<circle cx="12" cy="12" r="3" />
+					<path d="M19.4 15a1.65 1.65 0 00.33 1.82l.06.06a2 2 0 01-2.83 2.83l-.06-.06a1.65 1.65 0 00-1.82-.33 1.65 1.65 0 00-1 1.51V21a2 2 0 01-4 0v-.09A1.65 1.65 0 009 19.4a1.65 1.65 0 00-1.82.33l-.06.06a2 2 0 01-2.83-2.83l.06-.06A1.65 1.65 0 004.68 15a1.65 1.65 0 00-1.51-1H3a2 2 0 010-4h.09A1.65 1.65 0 004.6 9a1.65 1.65 0 00-.33-1.82l-.06-.06a2 2 0 012.83-2.83l.06.06A1.65 1.65 0 009 4.68a1.65 1.65 0 001-1.51V3a2 2 0 014 0v.09a1.65 1.65 0 001 1.51 1.65 1.65 0 001.82-.33l.06-.06a2 2 0 012.83 2.83l-.06.06A1.65 1.65 0 0019.4 9a1.65 1.65 0 001.51 1H21a2 2 0 010 4h-.09a1.65 1.65 0 00-1.51 1z" />
+				</svg>
+				<span>Settings</span>
+			</button>
+		</div>
+		{/if}
+	</div>
+{:else}
+	<!-- ═══ DESKTOP LAYOUT ═══ -->
+	<div class="app-shell">
 		{#if $focusMode}
 			<!-- svelte-ignore a11y_no_static_element_interactions -->
 			<div class="focus-topbar" class:macos={isMac} onmousedown={(e) => { if (!(e.target as HTMLElement).closest('button')) appWindow.startDragging(); }}>
@@ -291,7 +495,8 @@
 				<Editor bind:this={editor} />
 			</div>
 		</div>
-</div>
+	</div>
+{/if}
 
 <SearchPanel />
 <CommandPalette />
@@ -299,6 +504,7 @@
 <InfoPanel />
 
 <style>
+	/* ═══ DESKTOP STYLES ═══ */
 	.app-shell {
 		display: flex;
 		flex-direction: column;
@@ -390,4 +596,124 @@
 	.focus-topbar.macos {
 		padding-left: 78px;
 	}
+
+	/* ═══ MOBILE STYLES ═══ */
+	.mobile-shell {
+		display: flex;
+		flex-direction: column;
+		height: 100vh;
+		overflow: hidden;
+		background: var(--bg-primary);
+	}
+
+	.mobile-header {
+		display: flex;
+		align-items: center;
+		height: 52px;
+		padding: 0 8px;
+		background: var(--bg-secondary);
+		border-bottom: 1px solid var(--border-color);
+		flex-shrink: 0;
+		gap: 4px;
+	}
+
+	.mobile-header-brand {
+		display: flex;
+		align-items: center;
+		padding: 0 8px;
+	}
+
+	.mobile-header-title {
+		flex: 1;
+		font-size: 17px;
+		font-weight: 600;
+		color: var(--text-primary);
+		overflow: hidden;
+		text-overflow: ellipsis;
+		white-space: nowrap;
+		padding: 0 4px;
+	}
+
+	.mobile-header-actions {
+		display: flex;
+		align-items: center;
+		gap: 2px;
+	}
+
+	.mobile-header-btn {
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		width: 44px;
+		height: 44px;
+		border: none;
+		background: none;
+		color: var(--text-secondary);
+		border-radius: 10px;
+		cursor: pointer;
+	}
+
+	.mobile-header-btn:active {
+		background: var(--bg-hover);
+	}
+
+	.mobile-header-btn.active {
+		color: var(--accent);
+	}
+
+	.mobile-content {
+		flex: 1;
+		overflow: hidden;
+		position: relative;
+	}
+
+	.mobile-panel {
+		position: absolute;
+		inset: 0;
+		overflow: hidden;
+		visibility: hidden;
+		pointer-events: none;
+		display: flex;
+		flex-direction: column;
+	}
+
+	.mobile-panel.active {
+		visibility: visible;
+		pointer-events: auto;
+	}
+
+	.mobile-bottom-nav {
+		display: flex;
+		align-items: center;
+		justify-content: space-around;
+		height: 56px;
+		background: var(--bg-secondary);
+		border-top: 1px solid var(--border-color);
+		flex-shrink: 0;
+		padding-bottom: env(safe-area-inset-bottom);
+	}
+
+	.mobile-nav-item {
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+		gap: 2px;
+		padding: 6px 16px;
+		border: none;
+		background: none;
+		color: var(--text-tertiary);
+		font-size: 10px;
+		font-weight: 500;
+		cursor: pointer;
+		border-radius: 8px;
+		transition: color 0.15s;
+	}
+
+	.mobile-nav-item:active {
+		background: var(--bg-hover);
+	}
+
+	.mobile-nav-item.active {
+		color: var(--accent);
+	}
 </style>

src/lib/components/Editor.svelte

@@ -39,19 +39,32 @@
 	import { openFile, copyFileTo } from '$lib/api';
 	import { save as saveDialog } from '@tauri-apps/plugin-dialog';
 	import { activeNote, activeNotePath, appConfig, editorDirty, sourceMode, focusMode, readOnly, quickAccessPaths, notes } from '$lib/stores/app';
-	import { saveNote, saveImage, saveAttachment, addQuickAccess, removeQuickAccess, getQuickAccess, getNoteVersions, getNoteVersionContent, createVersion, aiAsk, getAllNoteTitles, readNote } from '$lib/api';
+	import { saveNote, saveImage, saveAttachment, addQuickAccess, removeQuickAccess, getQuickAccess, getNoteVersions, getNoteVersionContent, createVersion, aiAsk, getAllNoteTitles, readNote, renameNote } from '$lib/api';
 	import type { VersionEntry, AiStreamEvent, NoteTitleEntry } from '$lib/types';
 	import { listen } from '@tauri-apps/api/event';
 	import { debounce } from '$lib/utils/debounce';
 	import GraphView from './GraphView.svelte';
 
 	const modKey = navigator.platform.startsWith('Mac') ? '⌘' : 'Ctrl';
+	const isMobile = /android|ios/i.test(navigator.userAgent);
+
+	// Track virtual keyboard height on mobile via visualViewport
+	let keyboardHeight = $state(0);
+	if (isMobile && typeof window !== 'undefined' && window.visualViewport) {
+		const vv = window.visualViewport;
+		const update = () => { keyboardHeight = Math.max(0, Math.round(window.innerHeight - vv.height)); };
+		vv.addEventListener('resize', update);
+		vv.addEventListener('scroll', update);
+	}
 
 	let editorElement = $state<HTMLDivElement>(null!);
 	let sourceElement = $state<HTMLTextAreaElement>(null!);
 	let editor: Editor | null = null;
 	let editorReady = $state(false);
 	let sourceContent = $state('');
+	let sourceHistory: Array<{ content: string; cursor: number }> = [];
+	let sourceHistoryIndex = -1;
+	let sourceHistoryTimer: ReturnType<typeof setTimeout> | null = null;
 	let loadedPath = '';
 	let pendingContent = $state<string | null>(null);
 	let ignoreNextUpdate = false;
@@ -181,6 +194,8 @@
 	let linkModal = $state(false);
 	let linkModalUrl = $state('');
 	let linkModalInput = $state<HTMLInputElement>(null!);
+	let linkSelectionFrom = 0;
+	let linkSelectionTo = 0;
 	let textContextMenu = $state<{ x: number; y: number } | null>(null);
 	let tableContextMenu = $state<{ x: number; y: number } | null>(null);
 	let tablePickerOpen = $state(false);
@@ -1195,6 +1210,7 @@
 		if (editor) editor.setEditable(!shouldBeReadOnly);
 		if ($sourceMode) {
 			sourceContent = stripTitleH1(content);
+			resetSourceHistory(sourceContent);
 			isLoadingNote = false;
 		} else if (editorElement && editor) {
 			// Editor already exists, just swap content
@@ -1470,7 +1486,7 @@
 			} else if (child.type.name === 'mathInline') {
 				parts.push(`$${child.attrs.tex || ''}$`);
 			} else if (child.type.name === 'hardBreak') {
-				parts.push('\n');
+				parts.push('  \n');
 			}
 		});
 		return parts.join('');
@@ -1548,6 +1564,69 @@
 		sourceElement.scrollTop = Math.max(0, targetScroll);
 	}
 
+	function resetSourceHistory(content: string) {
+		sourceHistory = [{ content, cursor: content.length }];
+		sourceHistoryIndex = 0;
+		if (sourceHistoryTimer) {
+			clearTimeout(sourceHistoryTimer);
+			sourceHistoryTimer = null;
+		}
+	}
+
+	function pushSourceHistoryImmediate() {
+		if (!sourceElement) return;
+		if (sourceHistoryTimer) {
+			clearTimeout(sourceHistoryTimer);
+			sourceHistoryTimer = null;
+		}
+		const entry = { content: sourceContent, cursor: sourceElement.selectionStart };
+		// Don't push duplicate
+		if (sourceHistoryIndex >= 0 && sourceHistory[sourceHistoryIndex]?.content === entry.content) return;
+		// Truncate any redo history
+		sourceHistory = sourceHistory.slice(0, sourceHistoryIndex + 1);
+		sourceHistory.push(entry);
+		sourceHistoryIndex++;
+		// Limit stack size
+		if (sourceHistory.length > 200) {
+			sourceHistory.shift();
+			sourceHistoryIndex--;
+		}
+	}
+
+	function pushSourceHistoryDebounced() {
+		if (sourceHistoryTimer) clearTimeout(sourceHistoryTimer);
+		sourceHistoryTimer = setTimeout(() => {
+			sourceHistoryTimer = null;
+			pushSourceHistoryImmediate();
+		}, 300);
+	}
+
+	function sourceUndo() {
+		// Flush any pending debounced snapshot first
+		if (sourceHistoryTimer) {
+			clearTimeout(sourceHistoryTimer);
+			sourceHistoryTimer = null;
+			pushSourceHistoryImmediate();
+		}
+		if (sourceHistoryIndex <= 0) return;
+		sourceHistoryIndex--;
+		const entry = sourceHistory[sourceHistoryIndex];
+		sourceContent = entry.content;
+		tick().then(() => {
+			sourceElement?.setSelectionRange(entry.cursor, entry.cursor);
+		});
+	}
+
+	function sourceRedo() {
+		if (sourceHistoryIndex >= sourceHistory.length - 1) return;
+		sourceHistoryIndex++;
+		const entry = sourceHistory[sourceHistoryIndex];
+		sourceContent = entry.content;
+		tick().then(() => {
+			sourceElement?.setSelectionRange(entry.cursor, entry.cursor);
+		});
+	}
+
 	function applySearchDecorations() {
 		if (!editor) return;
 		const decorations = noteSearchResults.map((m, i) =>
@@ -1964,7 +2043,7 @@
 				PdfEmbed,
 				MathBlock,
 				MathInline,
-				Details.configure({ persist: true, HTMLAttributes: { class: 'editor-details' } }),
+				Details.configure({ persist: false, HTMLAttributes: { class: 'editor-details' } }),
 				DetailsSummary,
 				DetailsContent,
 				TextAlign.configure({ types: ['heading', 'paragraph'] }),
@@ -1989,6 +2068,14 @@
 							}
 						}
 					},
+					// Prevent native text drag — it causes copy-instead-of-move in Tauri's webview.
+					// File drops from OS are handled by Tauri's onDragDropEvent listener instead.
+					dragstart: (_view, event) => {
+						const dt = event.dataTransfer;
+						if (!dt || dt.files.length === 0) {
+							event.preventDefault();
+						}
+					},
 				},
 				handleDrop: (_view, event) => handleFileDrop(event),
 				handlePaste: (_view, event) => handleFilePaste(event),
@@ -2023,8 +2110,11 @@
 		}
 	}
 
-	function addLinkFromToolbar() {
+	export function addLinkFromToolbar() {
 		if (!editor) return;
+		const { from, to } = editor.state.selection;
+		linkSelectionFrom = from;
+		linkSelectionTo = to;
 		const previousUrl = editor.getAttributes('link').href || '';
 		linkModalUrl = previousUrl;
 		linkModal = true;
@@ -2033,11 +2123,14 @@
 
 	function linkModalConfirm() {
 		if (!editor) return;
-		const url = linkModalUrl.trim();
+		let url = linkModalUrl.trim();
 		if (url === '') {
-			editor.chain().focus().extendMarkRange('link').unsetLink().run();
+			editor.chain().focus().setTextSelection({ from: linkSelectionFrom, to: linkSelectionTo }).extendMarkRange('link').unsetLink().run();
 		} else {
-			editor.chain().focus().extendMarkRange('link').setLink({ href: url }).run();
+			if (url && !/^[a-zA-Z][a-zA-Z0-9+.-]*:/.test(url) && !url.startsWith('/') && !url.startsWith('#')) {
+				url = 'https://' + url;
+			}
+			editor.chain().focus().setTextSelection({ from: linkSelectionFrom, to: linkSelectionTo }).setMark('link', { href: url }).run();
 		}
 		linkModal = false;
 		linkModalUrl = '';
@@ -2743,6 +2836,7 @@
 		if (isSource && !lastSourceMode) {
 			// Switching TO source: extract markdown from editor
 			sourceContent = editor ? editorToMarkdown() : ($activeNote?.content ?? '');
+			resetSourceHistory(sourceContent);
 			lastSourceMode = true;
 		} else if (!isSource && lastSourceMode) {
 			// Switching BACK to WYSIWYG: destroy old editor (its DOM element is gone),
@@ -2814,7 +2908,7 @@
 	});
 </script>
 
-<div class="editor-container">
+<div class="editor-container" class:mobile={isMobile}>
 	{#if !$activeNote}
 		<div class="empty-editor">
 			<div class="empty-icon">
@@ -2830,7 +2924,7 @@
 			</div>
 		</div>
 	{:else}
-		<div class="editor-toolbar">
+		<div class="editor-toolbar" class:mobile={isMobile}>
 			<div class="editor-title">
 				<input
 					bind:this={titleInput}
@@ -2847,27 +2941,49 @@
 							editor?.commands.focus('start');
 						}
 					}}
-					onchange={(e) => {
+					onchange={async (e) => {
-						if ($activeNote) {
+						if ($activeNote && $activeNotePath) {
-							const newTitle = (e.target as HTMLInputElement).value;
+							const newTitle = (e.target as HTMLInputElement).value.trim();
+							if (!newTitle) return;
+							const oldPath = $activeNotePath;
 							$activeNote.meta.title = newTitle;
-							// Update the note list entry so the 2nd panel reflects the change
-							notes.update(list => list.map(n =>
-								n.path === $activeNotePath ? { ...n, meta: { ...n.meta, title: newTitle } } : n
-							));
 							$editorDirty = true;
 							autoSave();
+							// Rename file on disk if filename doesn't match the new title
+							const filename = oldPath.split('/').pop() ?? '';
+							const stem = filename.replace(/\.md$/, '');
+							if (stem !== newTitle) {
+								try {
+									const newPath = await renameNote(oldPath, newTitle);
+									$activeNotePath = newPath;
+									notes.update(list => list.map(n =>
+										n.path === oldPath
+											? { ...n, path: newPath, relative_path: n.relative_path.replace(/[^/]+$/, newTitle + '.md'), meta: { ...n.meta, title: newTitle } }
+											: n
+									));
+								} catch (err) {
+									console.error('Failed to rename note file:', err);
+									notes.update(list => list.map(n =>
+										n.path === oldPath ? { ...n, meta: { ...n.meta, title: newTitle } } : n
+									));
+								}
+							} else {
+								notes.update(list => list.map(n =>
+									n.path === oldPath ? { ...n, meta: { ...n.meta, title: newTitle } } : n
+								));
+							}
 						}
 					}}
 				/>
 			</div>
-			<div class="toolbar-actions">
+			<div class="toolbar-actions" class:mobile={isMobile}>
 				{#if $editorDirty}
 					<span class="save-indicator">Unsaved</span>
 				{/if}
 				{#if $readOnly}
 					<span class="readonly-indicator">View Mode</span>
 				{/if}
+				{#if !isMobile}
 				<button
 					class="icon-btn"
 					class:active={noteSearchOpen}
@@ -2878,6 +2994,7 @@
 						<circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/>
 					</svg>
 				</button>
+				{/if}
 
 				<button
 					class="icon-btn"
@@ -2891,7 +3008,7 @@
 					}}
 					title={$activeNote?.meta.pinned ? 'Unpin note' : 'Pin note'}
 				>
-					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+					<svg width={isMobile ? "20" : "16"} height={isMobile ? "20" : "16"} viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
 						<path d="M12 17v5"/>
 						<path d="M9 2h6l-1 7h4l-2 4H8l-2-4h4L9 2z"/>
 					</svg>
@@ -2915,7 +3032,7 @@
 					}}
 					title={isQuickAccess ? 'Remove from Quick Access' : 'Add to Quick Access'}
 				>
-					<svg width="16" height="16" viewBox="0 0 24 24" fill={isQuickAccess ? 'currentColor' : 'none'} stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+					<svg width={isMobile ? "20" : "16"} height={isMobile ? "20" : "16"} viewBox="0 0 24 24" fill={isQuickAccess ? 'currentColor' : 'none'} stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
 						<polygon points="12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2" />
 					</svg>
 				</button>
@@ -2925,7 +3042,7 @@
 					onclick={() => { showOutline = !showOutline; if (showOutline) updateOutline(); }}
 					title="Outline"
 				>
-					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+					<svg width={isMobile ? "20" : "16"} height={isMobile ? "20" : "16"} viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
 						<line x1="4" y1="6" x2="20" y2="6"/><line x1="8" y1="12" x2="20" y2="12"/><line x1="8" y1="18" x2="20" y2="18"/><circle cx="4" cy="12" r="1" fill="currentColor"/><circle cx="4" cy="18" r="1" fill="currentColor"/>
 					</svg>
 				</button>
@@ -2935,11 +3052,12 @@
 					onclick={toggleHistory}
 					title="Version history"
 				>
-					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+					<svg width={isMobile ? "20" : "16"} height={isMobile ? "20" : "16"} viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
 						<circle cx="12" cy="12" r="10"/>
 						<polyline points="12 6 12 12 16 14"/>
 					</svg>
 				</button>
+				{#if !isMobile}
 				{#if $appConfig?.enable_wiki_links}
 				<button
 					class="icon-btn"
@@ -2974,6 +3092,7 @@
 						<path d="M5.854 4.854a.5.5 0 10-.708-.708l-3.5 3.5a.5.5 0 000 .708l3.5 3.5a.5.5 0 00.708-.708L2.707 8l3.147-3.146zm4.292 0a.5.5 0 01.708-.708l3.5 3.5a.5.5 0 010 .708l-3.5 3.5a.5.5 0 01-.708-.708L13.293 8l-3.147-3.146z" />
 					</svg>
 				</button>
+				{/if}
 			</div>
 		</div>
 
@@ -3016,11 +3135,13 @@
 			<div class="editor-body">
 				{#if $sourceMode}
 					{#if $appConfig?.show_line_numbers}
-						<div class="line-numbers" aria-hidden="true">
+						<div class="line-numbers-clip" aria-hidden="true">
+							<div class="line-numbers">
 								{#each sourceContent.split('\n') as _, i}
 									<span>{i + 1}</span>
 								{/each}
 							</div>
+						</div>
 					{/if}
 					<textarea
 						class="source-editor"
@@ -3032,10 +3153,42 @@
 						oninput={() => {
 							$editorDirty = true;
 							autoSave();
+							pushSourceHistoryDebounced();
 						}}
 						onkeydown={(e) => {
+							const mod = e.ctrlKey || e.metaKey;
+							// Shift+Enter: insert two trailing spaces + newline for markdown hard break
+							if (e.key === 'Enter' && e.shiftKey && !mod) {
+								e.preventDefault();
+								const ta = sourceElement;
+								const start = ta.selectionStart;
+								const end = ta.selectionEnd;
+								const val = ta.value;
+								sourceContent = val.slice(0, start) + '  \n' + val.slice(end);
+								tick().then(() => {
+									const newPos = start + 3;
+									ta.setSelectionRange(newPos, newPos);
+								});
+								$editorDirty = true;
+								autoSave();
+								pushSourceHistoryDebounced();
+								return;
+							}
+							// Undo
+							if (mod && (e.key === 'z' || e.key === 'Z') && !e.shiftKey) {
+								e.preventDefault();
+								sourceUndo();
+								return;
+							}
+							// Redo
+							if ((mod && (e.key === 'z' || e.key === 'Z') && e.shiftKey) || (mod && (e.key === 'y' || e.key === 'Y'))) {
+								e.preventDefault();
+								sourceRedo();
+								return;
+							}
 							if (e.altKey && (e.key === 'ArrowUp' || e.key === 'ArrowDown')) {
 								e.preventDefault();
+								pushSourceHistoryImmediate();
 								const ta = sourceElement;
 								const val = ta.value;
 								const start = ta.selectionStart;
@@ -3055,6 +3208,7 @@
 									tick().then(() => {
 										const newPos = lines.slice(0, curLine - 1).join('\n').length + 1 + (start - pos);
 										ta.setSelectionRange(newPos, newPos);
+										pushSourceHistoryImmediate();
 									});
 								} else if (e.key === 'ArrowDown' && curLine < lines.length - 1) {
 									const tmp = lines[curLine];
@@ -3064,6 +3218,7 @@
 									tick().then(() => {
 										const newPos = lines.slice(0, curLine + 1).join('\n').length + 1 + (start - pos);
 										ta.setSelectionRange(newPos, newPos);
+										pushSourceHistoryImmediate();
 									});
 								}
 								$editorDirty = true;
@@ -3072,8 +3227,11 @@
 						}}
 						onscroll={() => {
 							if ($appConfig?.show_line_numbers) {
-								const gutter = sourceElement?.previousElementSibling as HTMLElement;
+								const clip = sourceElement?.previousElementSibling as HTMLElement;
-								if (gutter) gutter.scrollTop = sourceElement.scrollTop;
+								const gutter = clip?.firstElementChild as HTMLElement;
+								if (gutter) {
+									gutter.style.transform = `translateY(-${sourceElement.scrollTop}px)`;
+								}
 							}
 						}}
 						spellcheck="false"
@@ -3162,7 +3320,116 @@
 
 		{#if editorReady && !$sourceMode}
 			<!-- svelte-ignore a11y_no_static_element_interactions -->
-			<div class="editor-formatting-bar" onclick={() => { headingDropdown = false; colorDropdown = false; highlightDropdown = false; tablePickerOpen = false; alignDropdown = false; insertDropdown = false; }}>
+			<div class="editor-formatting-bar" style={isMobile && keyboardHeight > 0 ? `bottom: ${keyboardHeight}px` : ''} onclick={() => { headingDropdown = false; colorDropdown = false; highlightDropdown = false; tablePickerOpen = false; alignDropdown = false; insertDropdown = false; }}>
+				{#if isMobile}
+				<!-- ═══ MOBILE formatting bar: compact, relevant buttons only ═══ -->
+
+				<!-- Heading dropdown -->
+				<div class="fmt-dropdown-wrap">
+					<button class="fmt-btn" class:active={(editorState, editor.isActive('heading'))} onclick={(e) => { e.stopPropagation(); headingDropdown = !headingDropdown; insertDropdown = false; }} title="Heading">
+						<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M6 12h12"/><path d="M6 20V4"/><path d="M18 20V4"/></svg>
+					</button>
+					{#if headingDropdown}
+						<!-- svelte-ignore a11y_no_static_element_interactions -->
+						<div class="fmt-dropdown" onclick={(e) => e.stopPropagation()}>
+							<button class:active={(editorState, editor.isActive('heading', { level: 1 }))} onclick={() => { editor?.chain().focus().toggleHeading({ level: 1 }).run(); headingDropdown = false; }}>Heading 1</button>
+							<button class:active={(editorState, editor.isActive('heading', { level: 2 }))} onclick={() => { editor?.chain().focus().toggleHeading({ level: 2 }).run(); headingDropdown = false; }}>Heading 2</button>
+							<button class:active={(editorState, editor.isActive('heading', { level: 3 }))} onclick={() => { editor?.chain().focus().toggleHeading({ level: 3 }).run(); headingDropdown = false; }}>Heading 3</button>
+							<button class:active={(editorState, editor.isActive('paragraph'))} onclick={() => { editor?.chain().focus().setParagraph().run(); headingDropdown = false; }}>Paragraph</button>
+						</div>
+					{/if}
+				</div>
+
+				<div class="fmt-sep"></div>
+
+				<!-- Bold / Italic / Underline / Strike -->
+				<button class="fmt-btn" class:active={(editorState, editor.isActive('bold'))} onclick={() => editor?.chain().focus().toggleBold().run()} title="Bold">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M6 12h9a4 4 0 010 8H7a1 1 0 01-1-1V5a1 1 0 011-1h7a4 4 0 010 8"/></svg>
+				</button>
+				<button class="fmt-btn" class:active={(editorState, editor.isActive('italic'))} onclick={() => editor?.chain().focus().toggleItalic().run()} title="Italic">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="19" x2="10" y1="4" y2="4"/><line x1="14" x2="5" y1="20" y2="20"/><line x1="15" x2="9" y1="4" y2="20"/></svg>
+				</button>
+				<button class="fmt-btn" class:active={(editorState, editor.isActive('underline'))} onclick={() => editor?.chain().focus().toggleUnderline().run()} title="Underline">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M6 4v6a6 6 0 0012 0V4"/><line x1="4" x2="20" y1="20" y2="20"/></svg>
+				</button>
+				<button class="fmt-btn" class:active={(editorState, editor.isActive('strike'))} onclick={() => editor?.chain().focus().toggleStrike().run()} title="Strikethrough">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M16 4H9a3 3 0 00-2.83 4"/><path d="M14 12a4 4 0 010 8H6"/><line x1="4" x2="20" y1="12" y2="12"/></svg>
+				</button>
+
+				<div class="fmt-sep"></div>
+
+				<!-- Link -->
+				<button class="fmt-btn" class:active={(editorState, editor.isActive('link'))} onclick={addLinkFromToolbar} title="Link">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M10 13a5 5 0 007.54.54l3-3a5 5 0 00-7.07-7.07l-1.72 1.71"/><path d="M14 11a5 5 0 00-7.54-.54l-3 3a5 5 0 007.07 7.07l1.71-1.71"/></svg>
+				</button>
+
+				<div class="fmt-sep"></div>
+
+				<!-- Lists -->
+				<button class="fmt-btn" class:active={(editorState, editor.isActive('bulletList'))} onclick={() => editor?.chain().focus().toggleBulletList().run()} title="Bullet List">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M3 5h.01"/><path d="M3 12h.01"/><path d="M3 19h.01"/><path d="M8 5h13"/><path d="M8 12h13"/><path d="M8 19h13"/></svg>
+				</button>
+				<button class="fmt-btn" class:active={(editorState, editor.isActive('orderedList'))} onclick={() => editor?.chain().focus().toggleOrderedList().run()} title="Numbered List">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M11 5h10"/><path d="M11 12h10"/><path d="M11 19h10"/><path d="M4 4h1v5"/><path d="M4 9h2"/><path d="M6.5 20H3.4c0-1 2.6-1.925 2.6-3.5a1.5 1.5 0 00-2.6-1.02"/></svg>
+				</button>
+				<button class="fmt-btn" class:active={(editorState, editor.isActive('taskList'))} onclick={() => editor?.chain().focus().toggleTaskList().run()} title="Task List">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M13 5h8"/><path d="M13 12h8"/><path d="M13 19h8"/><path d="m3 17 2 2 4-4"/><path d="m3 7 2 2 4-4"/></svg>
+				</button>
+
+				<div class="fmt-sep"></div>
+
+				<!-- Highlight -->
+				<button class="fmt-btn" class:active={(editorState, editor.isActive('highlight'))} onclick={() => editor?.chain().focus().toggleHighlight({ color: highlightColors[0].value }).run()} title="Highlight">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="m9 11-6 6v3h9l3-3"/><path d="m22 12-4.6 4.6a2 2 0 01-2.8 0l-5.2-5.2a2 2 0 010-2.8L14 4"/></svg>
+				</button>
+
+				<div class="fmt-sep"></div>
+
+				<!-- Undo / Redo -->
+				<button class="fmt-btn" onclick={() => editor?.chain().focus().undo().run()} title="Undo">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M9 14 4 9l5-5"/><path d="M4 9h10.5a5.5 5.5 0 015.5 5.5 5.5 5.5 0 01-5.5 5.5H11"/></svg>
+				</button>
+				<button class="fmt-btn" onclick={() => editor?.chain().focus().redo().run()} title="Redo">
+					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="m15 14 5-5-5-5"/><path d="M20 9H9.5A5.5 5.5 0 004 14.5 5.5 5.5 0 009.5 20H13"/></svg>
+				</button>
+
+				<div class="fmt-sep"></div>
+
+				<!-- Insert (+) dropdown — mobile version with common inserts -->
+				<div class="fmt-dropdown-wrap">
+					<button class="fmt-btn insert-btn" onclick={(e) => { e.stopPropagation(); insertDropdown = !insertDropdown; headingDropdown = false; }} title="Insert">
+						<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M5 12h14"/><path d="M12 5v14"/></svg>
+					</button>
+					{#if insertDropdown}
+						<!-- svelte-ignore a11y_no_static_element_interactions -->
+						<div class="fmt-dropdown insert-dropdown" onclick={(e) => e.stopPropagation()}>
+							<button onclick={() => { insertDropdown = false; document.querySelector<HTMLInputElement>('#insert-image-input')?.click(); }}>
+								<svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect width="18" height="18" x="3" y="3" rx="2" ry="2"/><circle cx="9" cy="9" r="2"/><path d="m21 15-3.086-3.086a2 2 0 00-2.828 0L6 21"/></svg>
+								Image
+							</button>
+							<button onclick={() => { insertDropdown = false; document.querySelector<HTMLInputElement>('#insert-file-input')?.click(); }}>
+								<svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M6 22a2 2 0 01-2-2V4a2 2 0 012-2h8a2.4 2.4 0 011.704.706l3.588 3.588A2.4 2.4 0 0120 8v12a2 2 0 01-2 2z"/><path d="M14 2v5a1 1 0 001 1h5"/></svg>
+								File
+							</button>
+							<button onclick={() => { insertDropdown = false; editor?.chain().focus().setHorizontalRule().run(); }}>
+								<svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><path d="M5 12h14"/></svg>
+								Horizontal Rule
+							</button>
+							<button onclick={() => { insertDropdown = false; editor?.chain().focus().toggleCodeBlock().run(); }}>
+								<svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="m10 9-3 3 3 3"/><path d="m14 15 3-3-3-3"/><rect x="3" y="3" width="18" height="18" rx="2"/></svg>
+								Code Block
+							</button>
+							<button onclick={() => { insertDropdown = false; editor?.chain().focus().toggleBlockquote().run(); }}>
+								<svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M17 5H3"/><path d="M21 12H8"/><path d="M21 19H8"/><path d="M3 12v7"/></svg>
+								Quote
+							</button>
+						</div>
+					{/if}
+				</div>
+
+				{:else}
+				<!-- ═══ DESKTOP formatting bar: full feature set ═══ -->
+
 				<!-- Insert (+) dropdown -->
 				<div class="fmt-dropdown-wrap">
 					<button class="fmt-btn insert-btn" onclick={(e) => { e.stopPropagation(); insertDropdown = !insertDropdown; headingDropdown = false; colorDropdown = false; highlightDropdown = false; tablePickerOpen = false; alignDropdown = false; }} title="Insert">
@@ -3464,6 +3731,8 @@
 				}} title="Outdent (Shift+Tab)">
 					<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="3" y1="4" x2="21" y2="4"/><line x1="11" y1="9" x2="21" y2="9"/><line x1="11" y1="14" x2="21" y2="14"/><line x1="3" y1="19" x2="21" y2="19"/><polyline points="7 9 3 11.5 7 14"/></svg>
 				</button>
+
+				{/if}
 			</div>
 		{/if}
 	{/if}
@@ -3985,8 +4254,8 @@
 				bind:this={linkModalInput}
 				bind:value={linkModalUrl}
 				onkeydown={(e) => {
-					if (e.key === 'Enter') linkModalConfirm();
+					if (e.key === 'Enter') { e.preventDefault(); linkModalConfirm(); }
-					if (e.key === 'Escape') linkModalCancel();
+					if (e.key === 'Escape') { e.preventDefault(); linkModalCancel(); }
 				}}
 				placeholder="https://example.com"
 			/>
@@ -4569,38 +4838,44 @@
 		color: var(--text-primary);
 		font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
 		font-size: var(--editor-font-size, 14px);
-		line-height: 1.6;
+		line-height: var(--editor-line-height, 1.6);
 		resize: none;
 		outline: none;
 		padding: 0;
+		margin: 0;
 		user-select: text;
+		white-space: pre;
+		overflow-x: auto;
 	}
 
 	.source-editor.with-line-numbers {
 		padding-left: 48px;
 	}
 
-	.line-numbers {
+	.line-numbers-clip {
 		position: absolute;
 		left: 0;
 		top: 0;
 		bottom: 0;
 		width: 44px;
 		overflow: hidden;
-		display: flex;
+		pointer-events: none;
-		flex-direction: column;
+	}
-		padding-top: 0;
+
+	.line-numbers {
+		padding-top: 8px;
 		font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
 		font-size: var(--editor-font-size, 14px);
-		line-height: 1.6;
+		line-height: var(--editor-line-height, 1.6);
 		color: var(--text-secondary);
 		opacity: 0.5;
 		text-align: right;
 		user-select: none;
-		pointer-events: none;
+		will-change: transform;
 	}
 
 	.line-numbers span {
+		display: block;
 		padding-right: 12px;
 	}
 
@@ -4620,7 +4895,7 @@
 
 	:global(.tiptap-wrapper .tiptap p) {
 		margin: 0 0 0.75em;
-		line-height: 1.65;
+		line-height: var(--editor-line-height, 1.65);
 	}
 
 	:global(.tiptap-wrapper .tiptap h1) {
@@ -4938,7 +5213,7 @@
 
 	:global(.tiptap-wrapper .tiptap li) {
 		margin: 0.25em 0;
-		line-height: 1.65;
+		line-height: var(--editor-line-height, 1.65);
 	}
 
 	:global(.tiptap-wrapper .tiptap li p) {
@@ -6020,4 +6295,155 @@
 		text-overflow: ellipsis;
 		white-space: nowrap;
 	}
+
+	/* ═══ MOBILE (class-based, not media-query, for Android high-DPI) ═══ */
+	.editor-container.mobile {
+		height: 100%;
+		min-height: 0;
+		overflow: hidden;
+	}
+
+	.editor-container.mobile .editor-toolbar {
+		padding: 8px 8px 6px 12px;
+		flex-shrink: 0;
+		flex-direction: column;
+		align-items: stretch;
+		gap: 2px;
+	}
+
+	.toolbar-actions.mobile {
+		gap: 4px;
+	}
+
+	.toolbar-actions.mobile .icon-btn {
+		min-width: 32px;
+		min-height: 32px;
+		display: flex;
+		align-items: center;
+		justify-content: center;
+	}
+
+	.toolbar-actions.mobile .save-indicator,
+	.toolbar-actions.mobile .readonly-indicator {
+		font-size: 12px;
+	}
+
+	.editor-container.mobile .editor-title input {
+		font-size: 20px;
+		padding: 4px 0;
+	}
+
+	.editor-container.mobile .editor-body-wrapper {
+		flex: 1;
+		min-height: 0;
+		overflow: hidden;
+	}
+
+	.editor-container.mobile .editor-body-row {
+		min-height: 0;
+	}
+
+	.editor-container.mobile .editor-body {
+		min-height: 0;
+		overflow-y: auto;
+		-webkit-overflow-scrolling: touch;
+		padding-bottom: 50px;
+	}
+
+	.editor-container.mobile .tiptap-wrapper {
+		min-height: 100%;
+	}
+
+	.editor-container.mobile .editor-formatting-bar {
+		position: fixed;
+		bottom: 0;
+		left: 0;
+		right: 0;
+		z-index: 50;
+		padding: 4px 8px;
+		padding-bottom: calc(4px + env(safe-area-inset-bottom));
+		overflow-x: auto;
+		flex-wrap: nowrap;
+		-webkit-overflow-scrolling: touch;
+		scrollbar-width: none;
+		gap: 1px;
+		background: var(--bg-secondary);
+		border-top: 1px solid var(--border-color);
+	}
+
+	.editor-container.mobile .editor-formatting-bar::-webkit-scrollbar {
+		display: none;
+	}
+
+	.editor-container.mobile .fmt-btn {
+		min-width: 38px;
+		height: 38px;
+		flex-shrink: 0;
+		padding: 6px;
+	}
+
+	.editor-container.mobile .fmt-sep {
+		height: 20px;
+		margin: 0 2px;
+	}
+
+	.editor-container.mobile .fmt-dropdown {
+		position: fixed;
+		bottom: auto;
+		left: 8px;
+		right: 8px;
+		top: auto;
+		max-width: calc(100vw - 16px);
+		max-height: 60vh;
+		overflow-y: auto;
+	}
+
+	.editor-container.mobile .fmt-dropdown button {
+		padding: 12px 16px;
+		font-size: 15px;
+		min-height: 44px;
+	}
+
+	.editor-container.mobile .insert-dropdown {
+		position: fixed;
+		bottom: 60px;
+		left: 8px;
+		right: 8px;
+		max-width: calc(100vw - 16px);
+	}
+
+	.editor-container.mobile .shortcuts-hint {
+		display: none;
+	}
+
+	.editor-container.mobile .empty-editor p {
+		font-size: 16px;
+	}
+
+	.editor-container.mobile :global(.editor-content) {
+		padding: 8px 16px !important;
+		font-size: 16px !important;
+	}
+
+	.editor-container.mobile .source-editor {
+		padding: 8px 16px;
+		font-size: 15px;
+	}
+
+	.editor-container.mobile .history-panel,
+	.editor-container.mobile .outline-panel {
+		width: 100% !important;
+		max-width: 100%;
+		border-left: none;
+		border-top: 1px solid var(--border-color);
+	}
+
+	.editor-container.mobile .note-search-bar {
+		padding: 8px 12px;
+	}
+
+	.editor-container.mobile .note-search-bar input {
+		padding: 8px 10px;
+		font-size: 15px;
+	}
 </style>

src/lib/components/InfoPanel.svelte

@@ -126,6 +126,7 @@
 						<div class="shortcut-row"><span class="shortcut-desc">Redo</span><span class="shortcut-keys"><kbd>{modKey}</kbd>+<kbd>Shift</kbd>+<kbd>Z</kbd></span></div>
 						<div class="shortcut-row"><span class="shortcut-desc">Go back</span><span class="shortcut-keys"><kbd>Alt</kbd>+<kbd>←</kbd></span></div>
 						<div class="shortcut-row"><span class="shortcut-desc">Go forward</span><span class="shortcut-keys"><kbd>Alt</kbd>+<kbd>→</kbd></span></div>
+						<div class="shortcut-row"><span class="shortcut-desc">Toggle source mode</span><span class="shortcut-keys"><kbd>{modKey}</kbd>+<kbd>Shift</kbd>+<kbd>M</kbd></span></div>
 						<div class="shortcut-row"><span class="shortcut-desc">Exit focus mode</span><span class="shortcut-keys"><kbd>Esc</kbd></span></div>
 
 						<h4 class="shortcuts-group-title">Editor Commands</h4>
@@ -164,7 +165,8 @@
 		border-radius: 16px;
 		box-shadow: var(--shadow-lg);
 		width: 500px;
-		max-height: 80vh;
+		height: 80vh;
+		max-height: 600px;
 		overflow: hidden;
 		display: flex;
 		flex-direction: column;
@@ -201,7 +203,7 @@
 	}
 
 	.info-body {
-		padding: 0 24px 32px;
+		padding: 0 24px 16px;
 		display: flex;
 		flex-direction: column;
 		align-items: center;
@@ -244,6 +246,7 @@
 	}
 
 	.info-logo {
+		margin-top: 12px;
 		margin-bottom: 8px;
 	}
 

src/lib/components/NoteList.svelte

@@ -32,6 +32,7 @@
 		getAllTags
 	} from '$lib/api';
 	import { formatRelativeTime } from '$lib/utils/time';
+	import { openNoteWindow } from '$lib/utils/window';
 	import type { NoteEntry, SortMode } from '$lib/types';
 
 	let { onNoteSelected = (_path: string, _content: string) => {}, onNoteMoved = () => {} }: {
@@ -40,6 +41,7 @@
 	} = $props();
 
 	const modKey = navigator.platform.startsWith('Mac') ? '⌘' : 'Ctrl';
+	const isMobile = /android|ios/i.test(navigator.userAgent);
 
 	let compact = $derived($appConfig?.compact_notes ?? false);
 	let contextMenu = $state<{ x: number; y: number; note: NoteEntry } | null>(null);
@@ -456,6 +458,12 @@
 		editValue = note.meta.title;
 	}
 
+	function getNotebookPath(note: NoteEntry): string {
+		if ($viewMode === 'notebook') return '';
+		const parts = note.relative_path.replace(/\.md$/, '').split('/');
+		return parts.length > 1 ? parts.slice(0, -1).join('/') : '';
+	}
+
 	function handleNoteClick(e: MouseEvent, note: NoteEntry) {
 		if (e.ctrlKey || e.metaKey) {
 			// Toggle individual selection
@@ -575,7 +583,7 @@
 	}
 }} />
 
-<div class="note-list">
+<div class="note-list" class:mobile={isMobile}>
 	<div class="list-header">
 		<span class="list-title">{viewTitle}</span>
 		<div class="list-actions">
@@ -728,7 +736,7 @@
 					ondragend={() => { qaDragFrom = null; qaDragOver = null; }}
 				>
 					{#if compact}
-						<div class="note-compact-row">
+						<div class="note-compact-row" title={getNotebookPath(note) ? `${getNotebookPath(note)}/${note.meta.title}` : note.meta.title}>
 							<span class="note-title">
 								{#if note.meta.pinned}
 									<svg width="13" height="13" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="pin-icon">
@@ -737,10 +745,13 @@
 								{/if}
 								{note.meta.title}
 							</span>
+							{#if getNotebookPath(note)}
+								<span class="note-notebook">{getNotebookPath(note)}</span>
+							{/if}
 							<span class="note-date-compact">{formatRelativeTime(note.meta.modified)}</span>
 						</div>
 					{:else}
-						<div class="note-title">
+						<div class="note-title" title={getNotebookPath(note) ? `${getNotebookPath(note)}/${note.meta.title}` : note.meta.title}>
 							{#if note.meta.pinned}
 								<svg width="13" height="13" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="pin-icon">
 									<path d="M12 17v5"/><path d="M9 2h6l-1 7h4l-2 4H8l-2-4h4L9 2z"/>
@@ -750,6 +761,10 @@
 						</div>
 						<div class="note-preview">{note.preview}</div>
 						<div class="note-meta">
+							{#if getNotebookPath(note)}
+								<span class="note-notebook">{getNotebookPath(note)}</span>
+								<span class="note-meta-sep">&middot;</span>
+							{/if}
 							<span class="note-date">{formatRelativeTime(note.meta.modified)}</span>
 							{#if note.meta.tags.length > 0}
 								<span class="note-tags">
@@ -922,6 +937,12 @@
 					Add to Quick Access
 				</button>
 			{/if}
+			<button onclick={() => { const n = contextMenu!.note; contextMenu = null; openNoteWindow(n.path, n.meta.title); }}>
+				<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+					<path d="M18 13v6a2 2 0 01-2 2H5a2 2 0 01-2-2V8a2 2 0 012-2h6"/><polyline points="15 3 21 3 21 9"/><line x1="10" y1="14" x2="21" y2="3"/>
+				</svg>
+				Open in New Window
+			</button>
 			<button onclick={() => startRename(contextMenu!.note)}>
 				<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
 					<path d="M17 3a2.85 2.85 0 114 4L7.5 20.5 2 22l1.5-5.5Z"/><path d="m15 5 4 4"/>
@@ -1242,6 +1263,26 @@
 		margin-top: 4px;
 	}
 
+	.note-notebook {
+		font-size: 0.78em;
+		color: var(--text-tertiary);
+		overflow: hidden;
+		text-overflow: ellipsis;
+		white-space: nowrap;
+		max-width: 140px;
+	}
+
+	.note-meta-sep {
+		color: var(--text-tertiary);
+		font-size: 0.78em;
+	}
+
+	.note-compact-row .note-notebook {
+		font-size: 10px;
+		max-width: 80px;
+		flex-shrink: 0;
+	}
+
 	.note-date {
 		font-size: 0.78em;
 		color: var(--text-tertiary);
@@ -1475,4 +1516,132 @@
 	.note-item.qa-drag-below {
 		border-bottom: 2px solid var(--accent);
 	}
+
+	/* ═══ MOBILE (class-based for Android high-DPI) ═══ */
+	.note-list.mobile {
+		border-right: none;
+	}
+
+	.note-list.mobile .list-header {
+		padding: 12px 16px;
+	}
+
+	.note-list.mobile .list-title {
+		font-size: 16px;
+	}
+
+	.note-list.mobile .icon-btn {
+		min-width: 44px;
+		min-height: 44px;
+		padding: 10px;
+	}
+
+	.note-list.mobile .list-content {
+		padding: 4px 8px;
+	}
+
+	.note-list.mobile .note-item {
+		padding: 14px 16px;
+		min-height: 56px;
+		border-radius: 10px;
+		margin-bottom: 2px;
+	}
+
+	.note-list.mobile .note-item.compact {
+		padding: 10px 16px;
+		min-height: 48px;
+	}
+
+	.note-list.mobile .note-title {
+		font-size: 15px;
+	}
+
+	.note-list.mobile .note-preview {
+		font-size: 13px;
+		margin-top: 4px;
+	}
+
+	.note-list.mobile .note-meta {
+		margin-top: 6px;
+	}
+
+	.note-list.mobile .note-date {
+		font-size: 12px;
+	}
+
+	.note-list.mobile .mini-tag {
+		font-size: 11px;
+		padding: 2px 6px;
+	}
+
+	.note-list.mobile .rename-input {
+		padding: 10px 12px;
+		font-size: 15px;
+	}
+
+	.note-list.mobile .empty-state {
+		padding: 64px 24px;
+		font-size: 15px;
+	}
+
+	.note-list.mobile .btn-link {
+		font-size: 15px;
+	}
+
+	.note-list.mobile .selection-bar {
+		padding: 8px 16px;
+	}
+
+	.note-list.mobile .selection-count {
+		font-size: 13px;
+	}
+
+	.note-list.mobile .selection-action {
+		padding: 6px 14px;
+		font-size: 13px;
+		min-height: 36px;
+	}
+
+	.note-list.mobile .context-menu {
+		min-width: 220px;
+		border-radius: 12px;
+		padding: 6px;
+	}
+
+	.note-list.mobile .context-menu button {
+		padding: 12px 16px;
+		font-size: 15px;
+		min-height: 44px;
+		border-radius: 8px;
+	}
+
+	.note-list.mobile .sort-menu {
+		min-width: 220px;
+		border-radius: 12px;
+		padding: 6px;
+	}
+
+	.note-list.mobile .sort-menu button {
+		padding: 12px 16px;
+		font-size: 15px;
+		min-height: 44px;
+		border-radius: 8px;
+	}
+
+	.note-list.mobile .batch-move-picker {
+		min-width: 80vw;
+		max-width: 90vw;
+		max-height: 60vh;
+	}
+
+	.note-list.mobile .batch-move-header {
+		padding: 14px 16px;
+		font-size: 15px;
+	}
+
+	.note-list.mobile .batch-move-picker .move-picker-list button {
+		padding: 12px 16px;
+		font-size: 15px;
+		min-height: 44px;
+	}
 </style>

src/lib/components/NoteWindow.svelte

@@ -0,0 +1,326 @@
+<script lang="ts">
+	import { onMount, onDestroy } from 'svelte';
+	import { listen } from '@tauri-apps/api/event';
+	import { getCurrentWindow } from '@tauri-apps/api/window';
+	import Editor from './Editor.svelte';
+	import {
+		activeNote,
+		activeNotePath,
+		editorDirty,
+		readOnly,
+		sourceMode,
+		theme
+	} from '$lib/stores/app';
+	import { readNote } from '$lib/api';
+	import type { FileEvent } from '$lib/types';
+
+	let { notePath }: { notePath: string } = $props();
+
+	const appWindow = getCurrentWindow();
+	const isMac = navigator.platform.startsWith('Mac');
+	let editor = $state<Editor>(null!);
+	let unlistenFileChange: (() => void) | null = null;
+	let maximized = $state(false);
+	let loadError = $state<string | null>(null);
+
+	async function checkMaximized() {
+		maximized = await appWindow.isMaximized();
+	}
+
+	$effect(() => {
+		checkMaximized();
+		const unlisten = appWindow.onResized(() => checkMaximized());
+		return () => { unlisten.then(fn => fn()); };
+	});
+
+	$effect(() => {
+		const themeValue = $theme || 'system';
+		const root = document.documentElement;
+		root.classList.remove('dark');
+		if (themeValue === 'dark' || (themeValue === 'system' && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
+			root.classList.add('dark');
+		}
+	});
+
+	let lastMouseDown = 0;
+	const RESIZE_EDGE = 6;
+
+	function handleMouseDown(e: MouseEvent) {
+		if (e.button !== 0) return;
+		const target = e.target as HTMLElement;
+		if (target.closest('.titlebar-controls') || target.closest('.titlebar-actions')) return;
+
+		if (!maximized) {
+			const rect = (e.currentTarget as HTMLElement).getBoundingClientRect();
+			if (e.clientY - rect.top < RESIZE_EDGE || e.clientX - rect.left < RESIZE_EDGE) return;
+		}
+
+		const now = Date.now();
+		if (now - lastMouseDown < 300) {
+			appWindow.toggleMaximize();
+			lastMouseDown = 0;
+			return;
+		}
+		lastMouseDown = now;
+		appWindow.startDragging();
+	}
+
+	function handleKeydown(e: KeyboardEvent) {
+		const mod = e.ctrlKey || e.metaKey;
+		if (mod && e.key === 's') {
+			e.preventDefault();
+			editor?.forceSave();
+		}
+		if (mod && e.shiftKey && e.key === 'M') {
+			e.preventDefault();
+			$sourceMode = !$sourceMode;
+		}
+	}
+
+	onMount(async () => {
+		try {
+			const content = await readNote(notePath);
+			$activeNote = content;
+			$activeNotePath = notePath;
+			$editorDirty = false;
+			setTimeout(() => {
+				editor?.loadNote(notePath, content.content);
+				appWindow.setTitle(`${content.meta.title} - HelixNotes`);
+			}, 50);
+		} catch (e) {
+			loadError = String(e);
+		}
+
+		unlistenFileChange = await listen<FileEvent>('file-changed', async (event) => {
+			if (event.payload.path === notePath && event.payload.event_type === 'modify') {
+				if (!$editorDirty) {
+					try {
+						const content = await readNote(notePath);
+						$activeNote = content;
+						editor?.loadNote(notePath, content.content);
+					} catch (_) {}
+				}
+			}
+		});
+	});
+
+	onDestroy(() => {
+		unlistenFileChange?.();
+	});
+</script>
+
+<svelte:window onkeydown={handleKeydown} />
+
+<div class="note-window">
+	<!-- svelte-ignore a11y_no_static_element_interactions -->
+	<div class="nw-titlebar" class:macos={isMac} onmousedown={handleMouseDown}>
+		<div class="nw-titlebar-brand">
+			<svg width="14" height="14" viewBox="0 0 48 48" fill="none">
+				<rect width="48" height="48" rx="12" fill="var(--accent)" />
+				<circle cx="16" cy="16" r="3.5" fill="white" opacity="0.9" />
+				<circle cx="32" cy="16" r="3.5" fill="white" opacity="0.9" />
+				<circle cx="16" cy="32" r="3.5" fill="white" opacity="0.9" />
+				<circle cx="32" cy="32" r="3.5" fill="white" opacity="0.9" />
+				<line x1="19" y1="18" x2="29" y2="30" stroke="white" stroke-width="2" stroke-linecap="round" opacity="0.7" />
+				<line x1="29" y1="18" x2="19" y2="30" stroke="white" stroke-width="2" stroke-linecap="round" opacity="0.7" />
+			</svg>
+			<span class="nw-title">{$activeNote?.meta.title || 'Loading...'}</span>
+			{#if $editorDirty}
+				<span class="nw-dirty-dot" title="Unsaved changes"></span>
+			{/if}
+		</div>
+		<div class="titlebar-actions">
+			<button class="nw-btn" class:active={$sourceMode} onclick={() => ($sourceMode = !$sourceMode)} title="Toggle Source Mode">
+				<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+					<polyline points="16 18 22 12 16 6" /><polyline points="8 6 2 12 8 18" />
+				</svg>
+			</button>
+			<button class="nw-btn" class:active={$readOnly} onclick={() => ($readOnly = !$readOnly)} title={$readOnly ? 'Switch to Edit Mode' : 'Switch to View Mode'}>
+				<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+					{#if $readOnly}
+						<path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z" />
+						<circle cx="12" cy="12" r="3" />
+					{:else}
+						<path d="M17.94 17.94A10.07 10.07 0 0112 20c-7 0-11-8-11-8a18.45 18.45 0 015.06-5.94" />
+						<path d="M9.9 4.24A9.12 9.12 0 0112 4c7 0 11 8 11 8a18.5 18.5 0 01-2.16 3.19" />
+						<line x1="1" y1="1" x2="23" y2="23" />
+					{/if}
+				</svg>
+			</button>
+		</div>
+		{#if !isMac}
+		<div class="titlebar-controls">
+			<button class="titlebar-btn" onclick={() => appWindow.minimize()} title="Minimize">
+				<svg width="10" height="10" viewBox="0 0 10 10">
+					<line x1="1" y1="5" x2="9" y2="5" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" />
+				</svg>
+			</button>
+			<button class="titlebar-btn" onclick={() => appWindow.toggleMaximize()} title={maximized ? 'Restore' : 'Maximize'}>
+				{#if maximized}
+					<svg width="10" height="10" viewBox="0 0 10 10">
+						<rect x="2.5" y="0.5" width="7" height="7" rx="1" fill="none" stroke="currentColor" stroke-width="1.2" />
+						<rect x="0.5" y="2.5" width="7" height="7" rx="1" fill="var(--bg-secondary)" stroke="currentColor" stroke-width="1.2" />
+					</svg>
+				{:else}
+					<svg width="10" height="10" viewBox="0 0 10 10">
+						<rect x="1" y="1" width="8" height="8" rx="1" fill="none" stroke="currentColor" stroke-width="1.2" />
+					</svg>
+				{/if}
+			</button>
+			<button class="titlebar-btn titlebar-close" onclick={() => appWindow.close()} title="Close">
+				<svg width="10" height="10" viewBox="0 0 10 10">
+					<line x1="1.5" y1="1.5" x2="8.5" y2="8.5" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" />
+					<line x1="8.5" y1="1.5" x2="1.5" y2="8.5" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" />
+				</svg>
+			</button>
+		</div>
+		{/if}
+	</div>
+
+	{#if loadError}
+		<div class="nw-error">
+			<p>Failed to load note</p>
+			<p class="nw-error-detail">{loadError}</p>
+		</div>
+	{:else}
+		<div class="nw-editor">
+			<Editor bind:this={editor} />
+		</div>
+	{/if}
+</div>
+
+<style>
+	.note-window {
+		display: flex;
+		flex-direction: column;
+		height: 100vh;
+		background: var(--bg-primary);
+	}
+
+	.nw-titlebar {
+		display: flex;
+		align-items: center;
+		height: 34px;
+		background: var(--bg-secondary);
+		border-bottom: 1px solid var(--border-color);
+		user-select: none;
+		flex-shrink: 0;
+		-webkit-app-region: drag;
+	}
+
+	.nw-titlebar.macos {
+		padding-left: 78px;
+	}
+
+	.nw-titlebar-brand {
+		display: flex;
+		align-items: center;
+		gap: 8px;
+		padding-left: 14px;
+		pointer-events: none;
+		flex: 1;
+		min-width: 0;
+	}
+
+	.nw-title {
+		font-size: 12px;
+		font-weight: 500;
+		color: var(--text-tertiary);
+		overflow: hidden;
+		text-overflow: ellipsis;
+		white-space: nowrap;
+	}
+
+	.nw-dirty-dot {
+		width: 6px;
+		height: 6px;
+		border-radius: 50%;
+		background: var(--accent);
+		flex-shrink: 0;
+	}
+
+	.titlebar-actions {
+		display: flex;
+		align-items: center;
+		gap: 4px;
+		margin-right: 8px;
+		-webkit-app-region: no-drag;
+	}
+
+	.nw-btn {
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		width: 28px;
+		height: 28px;
+		border: none;
+		border-radius: 7px;
+		background: var(--bg-hover);
+		color: var(--text-secondary);
+		cursor: pointer;
+		transition: background 0.15s, color 0.15s;
+	}
+
+	.nw-btn:hover {
+		background: var(--bg-tertiary, var(--bg-hover));
+		color: var(--text-primary);
+	}
+
+	.nw-btn.active {
+		background: color-mix(in srgb, var(--accent) 18%, transparent);
+		color: var(--accent);
+	}
+
+	.titlebar-controls {
+		display: flex;
+		height: 100%;
+		-webkit-app-region: no-drag;
+	}
+
+	.titlebar-btn {
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		width: 38px;
+		height: 100%;
+		border: none;
+		background: none;
+		color: var(--text-tertiary);
+		cursor: pointer;
+		transition: background 0.1s, color 0.1s;
+	}
+
+	.titlebar-btn:hover {
+		background: var(--bg-hover);
+		color: var(--text-primary);
+	}
+
+	.titlebar-close:hover {
+		background: #e81123;
+		color: white;
+	}
+
+	.nw-editor {
+		flex: 1;
+		overflow: hidden;
+	}
+
+	.nw-error {
+		flex: 1;
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+		justify-content: center;
+		gap: 8px;
+		color: var(--text-secondary);
+		font-size: 14px;
+	}
+
+	.nw-error-detail {
+		font-size: 12px;
+		color: var(--text-tertiary);
+		max-width: 400px;
+		text-align: center;
+		word-break: break-word;
+	}
+</style>

src/lib/components/SettingsPanel.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
 	import { showSettings, theme, appConfig, updateAvailable as globalUpdateAvailable, updateObj as globalUpdateObj, installType, settingsTab } from '$lib/stores/app';
-	import { setTheme, setAccentColor, setFontSize, setFontFamily, setGeneralSettings, importObsidian, createBackup, listBackups, restoreBackup, deleteBackup, setBackupSettings, setAiSettings, testAiConnection } from '$lib/api';
+	import { setTheme, setAccentColor, setFontSize, setFontFamily, setLineHeight, setGeneralSettings, importObsidian, createBackup, listBackups, restoreBackup, deleteBackup, setBackupSettings, setAiSettings, testAiConnection } from '$lib/api';
 	import { open as openDialog } from '@tauri-apps/plugin-dialog';
 	import { listen } from '@tauri-apps/api/event';
 	import { check as checkUpdate } from '@tauri-apps/plugin-updater';
@@ -293,9 +293,17 @@
 		{ name: 'Mono', value: 'mono', stack: '"JetBrains Mono", "Fira Code", "Cascadia Code", monospace' },
 	];
 
+	const lineHeightPresets = [
+		{ label: 'Tight', value: 1.4 },
+		{ label: 'Default', value: 1.6 },
+		{ label: 'Relaxed', value: 1.8 },
+		{ label: 'Loose', value: 2.0 },
+	];
+
 	let activeAccent = $state($appConfig?.accent_color ?? 'Indigo');
 	let activeFontSize = $state($appConfig?.font_size ?? 14);
 	let activeFontFamily = $state($appConfig?.font_family ?? 'system');
+	let activeLineHeight = $state($appConfig?.line_height ?? 1.6);
 
 	// General settings
 	let compactNotes = $state($appConfig?.compact_notes ?? false);
@@ -422,6 +430,17 @@
 		document.documentElement.style.setProperty('--editor-font-family', stack);
 	}
 
+	function selectLineHeight(value: number) {
+		activeLineHeight = value;
+		applyLineHeight(value);
+		if ($appConfig) $appConfig.line_height = value;
+		setLineHeight(value).catch((e) => console.error('Failed to save line height:', e));
+	}
+
+	function applyLineHeight(value: number) {
+		document.documentElement.style.setProperty('--editor-line-height', String(value));
+	}
+
 	function close() {
 		// Ensure AI settings are saved when closing (in case input wasn't blurred)
 		// Only save if the key differs from what's already stored
@@ -454,6 +473,11 @@
 				applyFontFamily(preset.stack);
 			}
 		}
+		const savedLineHeight = $appConfig?.line_height;
+		if (savedLineHeight) {
+			activeLineHeight = savedLineHeight;
+			applyLineHeight(savedLineHeight);
+		}
 		// Sync general settings
 		if ($appConfig) {
 			compactNotes = $appConfig.compact_notes ?? false;
@@ -612,13 +636,7 @@
 						<div class="tab-content">
 							<div class="settings-section">
 								<h3>Title</h3>
-								<div class="setting-options">
+								<label class="setting-toggle">
-									<button class="option-btn" class:active={titleMode === 'input'} onclick={() => { titleMode = 'input'; saveGeneralSettings(); }}>Input</button>
-									<button class="option-btn" class:active={titleMode === 'heading'} onclick={() => { titleMode = 'heading'; saveGeneralSettings(); }}>Heading</button>
-									<button class="option-btn" class:active={titleMode === 'hidden'} onclick={() => { titleMode = 'hidden'; saveGeneralSettings(); }}>Hidden</button>
-								</div>
-								<span class="setting-hint">How the note title is displayed in the editor</span>
-								<label class="setting-toggle" style="margin-top: 12px;">
 									<span class="setting-label">
 										<span class="setting-name">Hide title in note body</span>
 										<span class="setting-desc">Hide the first heading when it matches the note title</span>
@@ -754,6 +772,22 @@
 								</div>
 							</div>
 
+							<div class="settings-section">
+								<h3>Line Height</h3>
+								<div class="font-size-options">
+									{#each lineHeightPresets as preset}
+										<button
+											class="font-size-btn"
+											class:active={activeLineHeight === preset.value}
+											onclick={() => selectLineHeight(preset.value)}
+										>
+											<span class="font-size-label">{preset.label}</span>
+											<span class="font-size-value">{preset.value}</span>
+										</button>
+									{/each}
+								</div>
+							</div>
+
 							<div class="settings-section">
 								<h3>Font</h3>
 								<div class="font-family-options">
@@ -1147,7 +1181,8 @@
 		border-radius: 16px;
 		box-shadow: var(--shadow-lg);
 		width: 620px;
-		max-height: 80vh;
+		height: 80vh;
+		max-height: 700px;
 		overflow: hidden;
 		display: flex;
 		flex-direction: column;

src/lib/components/Sidebar.svelte

@@ -28,6 +28,7 @@
 	} = $props();
 
 	const modKey = navigator.platform.startsWith('Mac') ? '⌘' : 'Ctrl';
+	const isMobile = /android|ios/i.test(navigator.userAgent);
 
 	let editingNotebook = $state<string | null>(null);
 	let editValue = $state('');
@@ -68,6 +69,11 @@
 	}
 
 	function selectNotebook(nb: NotebookEntry) {
+		// Deselect if clicking the already-active notebook
+		if ($viewMode === 'notebook' && $activeNotebook?.path === nb.path) {
+			selectAllNotes();
+			return;
+		}
 		$viewMode = 'notebook';
 		$activeNotebook = nb;
 		$activeTag = null;
@@ -95,18 +101,33 @@
 		onViewChanged();
 	}
 
+	let newNotebookParent = $state<NotebookEntry | null>(null);
+
 	async function handleCreateNotebook() {
 		if (!newNotebookName.trim()) return;
 		try {
-			await createNotebook(null, newNotebookName.trim());
+			const parentRel = newNotebookParent?.relative_path ?? null;
+			await createNotebook(parentRel, newNotebookName.trim());
 			newNotebookName = '';
 			showNewNotebook = false;
+			newNotebookParent = null;
 			await refresh();
 		} catch (e) {
 			console.error('Failed to create notebook:', e);
 		}
 	}
 
+	function startNewSubNotebook(nb: NotebookEntry) {
+		contextMenu = null;
+		newNotebookParent = nb;
+		newNotebookName = '';
+		showNewNotebook = true;
+		// Expand parent so the new child is visible
+		if ($collapsedNotebooks.includes(nb.path)) {
+			$collapsedNotebooks = $collapsedNotebooks.filter(p => p !== nb.path);
+		}
+	}
+
 	async function handleRename(nb: NotebookEntry) {
 		if (!editValue.trim() || editValue.trim() === nb.name) {
 			editingNotebook = null;
@@ -288,7 +309,7 @@
 
 <svelte:window onclick={handleWindowClick} />
 
-<aside class="sidebar" class:collapsed={$sidebarCollapsed}>
+<aside class="sidebar" class:collapsed={$sidebarCollapsed} class:mobile={isMobile}>
 	<div class="sidebar-header">
 		<button class="collapse-btn" onclick={() => ($sidebarCollapsed = !$sidebarCollapsed)} title="Toggle sidebar">
 			<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
@@ -368,7 +389,14 @@
 				}}
 			>
 				<span class="section-title">Notebooks</span>
-				<button class="icon-btn-sm" onclick={() => (showNewNotebook = !showNewNotebook)} title="New notebook">
+				<button class="icon-btn-sm" onclick={() => {
+					if (showNewNotebook) {
+						showNewNotebook = false; newNotebookName = ''; newNotebookParent = null;
+					} else {
+						newNotebookParent = ($viewMode === 'notebook' && $activeNotebook) ? $activeNotebook : null;
+						showNewNotebook = true;
+					}
+				}} title={$viewMode === 'notebook' && $activeNotebook ? `New notebook inside ${$activeNotebook.name}` : 'New notebook'}>
 					<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
 						<line x1="12" y1="5" x2="12" y2="19" /><line x1="5" y1="12" x2="19" y2="12" />
 					</svg>
@@ -377,13 +405,16 @@
 
 			{#if showNewNotebook}
 				<div class="new-notebook-input">
+					{#if newNotebookParent}
+						<span class="new-notebook-parent">{newNotebookParent.name}/</span>
+					{/if}
 					<input
 						type="text"
 						bind:value={newNotebookName}
-						placeholder="Notebook name..."
+						placeholder={newNotebookParent ? 'Sub-notebook name...' : 'Notebook name...'}
 						onkeydown={(e) => {
 							if (e.key === 'Enter') handleCreateNotebook();
-							if (e.key === 'Escape') { showNewNotebook = false; newNotebookName = ''; }
+							if (e.key === 'Escape') { showNewNotebook = false; newNotebookName = ''; newNotebookParent = null; }
 						}}
 					/>
 				</div>
@@ -444,6 +475,10 @@
 {#if contextMenu}
 	<!-- svelte-ignore a11y_no_static_element_interactions -->
 	<div class="context-menu" style="left: {contextMenu.x}px; top: {contextMenu.y}px" onmousedown={(e) => e.stopPropagation()}>
+		<button onclick={() => startNewSubNotebook(contextMenu!.notebook)}>
+			<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M22 19a2 2 0 01-2 2H4a2 2 0 01-2-2V5a2 2 0 012-2h5l2 3h9a2 2 0 012 2z" /><line x1="12" y1="11" x2="12" y2="17" /><line x1="9" y1="14" x2="15" y2="14" /></svg>
+			New Sub-notebook
+		</button>
 		<button onclick={() => startRename(contextMenu!.notebook)}>
 			<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M11 4H4a2 2 0 00-2 2v14a2 2 0 002 2h14a2 2 0 002-2v-7" /><path d="M18.5 2.5a2.121 2.121 0 013 3L12 15l-4 1 1-4 9.5-9.5z" /></svg>
 			Rename
@@ -699,9 +734,35 @@
 
 	.new-notebook-input {
 		padding: 2px 8px;
+		display: flex;
+		align-items: center;
+		gap: 0;
+		border: 1px solid var(--accent);
+		border-radius: 4px;
+		background: var(--bg-primary);
+		overflow: hidden;
 	}
 
-	.new-notebook-input input, .rename-input {
+	.new-notebook-parent {
+		padding: 4px 0 4px 8px;
+		color: var(--text-tertiary);
+		font-size: inherit;
+		white-space: nowrap;
+		flex-shrink: 0;
+	}
+
+	.new-notebook-input input {
+		flex: 1;
+		min-width: 0;
+		padding: 4px 8px;
+		border: none;
+		background: transparent;
+		color: var(--text-primary);
+		font-size: inherit;
+		outline: none;
+	}
+
+	.rename-input {
 		width: 100%;
 		padding: 4px 8px;
 		border: 1px solid var(--accent);
@@ -957,4 +1018,128 @@
 	.delete-confirm-btn:hover {
 		opacity: 0.9;
 	}
+
+	/* ═══ MOBILE (class-based for Android high-DPI) ═══ */
+	.sidebar.mobile {
+		width: 100% !important;
+		min-width: 100%;
+		border-right: none;
+	}
+
+	.sidebar.mobile.collapsed {
+		width: 100% !important;
+		min-width: 100%;
+		max-width: 100%;
+	}
+
+	.sidebar.mobile .sidebar-header {
+		padding: 10px 12px;
+	}
+
+	.sidebar.mobile .collapse-btn {
+		display: none;
+	}
+
+	.sidebar.mobile .nav-item {
+		padding: 12px 14px;
+		font-size: 15px;
+		min-height: 48px;
+		gap: 12px;
+	}
+
+	.sidebar.mobile .nav-item svg {
+		width: 20px;
+		height: 20px;
+	}
+
+	.sidebar.mobile .section-header {
+		padding: 12px 16px 6px;
+		min-height: 44px;
+	}
+
+	.sidebar.mobile .section-title {
+		font-size: 12px;
+	}
+
+	.sidebar.mobile .icon-btn,
+	.sidebar.mobile .icon-btn-sm {
+		min-width: 44px;
+		min-height: 44px;
+		padding: 10px;
+	}
+
+	.sidebar.mobile .notebook-item {
+		padding: 12px 12px;
+		min-height: 48px;
+		gap: 10px;
+		font-size: 15px;
+	}
+
+	.sidebar.mobile .notebook-icon {
+		width: 24px;
+		height: 24px;
+	}
+
+	.sidebar.mobile .new-notebook-input {
+		padding: 4px 12px;
+	}
+
+	.sidebar.mobile .new-notebook-parent {
+		padding: 10px 0 10px 12px;
+		font-size: 15px;
+	}
+
+	.sidebar.mobile .new-notebook-input input {
+		padding: 10px 12px;
+		font-size: 15px;
+	}
+
+	.sidebar.mobile .rename-input {
+		padding: 10px 12px;
+		font-size: 15px;
+	}
+
+	.sidebar.mobile .tag-item {
+		padding: 10px 16px;
+		min-height: 44px;
+		font-size: 14px;
+	}
+
+	.sidebar.mobile .sidebar-footer {
+		padding: 8px 12px;
+		display: none;
+	}
+
+	.sidebar.mobile .context-menu {
+		min-width: 200px;
+		border-radius: 12px;
+		padding: 6px;
+	}
+
+	.sidebar.mobile .context-menu button {
+		padding: 12px 16px;
+		font-size: 15px;
+		min-height: 44px;
+		border-radius: 8px;
+	}
+
+	.sidebar.mobile .delete-confirm {
+		max-width: calc(100vw - 40px);
+		padding: 24px;
+	}
+
+	.sidebar.mobile .delete-confirm h4 {
+		font-size: 16px;
+	}
+
+	.sidebar.mobile .delete-confirm p {
+		font-size: 14px;
+	}
+
+	.sidebar.mobile .delete-confirm-cancel,
+	.sidebar.mobile .delete-confirm-btn {
+		padding: 10px 20px;
+		font-size: 14px;
+		min-height: 44px;
+	}
 </style>

src/lib/components/VaultPicker.svelte

@@ -6,17 +6,24 @@
 	import type { VaultConfig } from '$lib/types';
 
 	const appWindow = getCurrentWindow();
+	const isMobile = /android|ios/i.test(navigator.userAgent);
 
 	let recentVaults: VaultConfig[] = $derived($appConfig?.vaults ?? []);
 	let loading = $state(false);
 	let error = $state('');
 
 	async function pickFolder() {
+		if (isMobile) {
+			// Use shared Documents folder for Syncthing/Nextcloud compatibility
+			const vaultPath = '/storage/emulated/0/Documents/HelixNotes';
+			await openSelectedVault(vaultPath);
+		} else {
 			const selected = await open({ directory: true, multiple: false, title: 'Choose Notes Folder' });
 			if (selected) {
 				await openSelectedVault(selected as string);
 			}
 		}
+	}
 
 	async function openSelectedVault(path: string) {
 		loading = true;
@@ -35,7 +42,8 @@
 </script>
 
 <!-- svelte-ignore a11y_no_static_element_interactions -->
-<div class="vault-picker" onmousedown={(e) => { if (!(e.target as HTMLElement).closest('button, .picker-card')) appWindow.startDragging(); }}>
+<div class="vault-picker" class:mobile={isMobile} onmousedown={(e) => { if (!isMobile && !(e.target as HTMLElement).closest('button, .picker-card')) appWindow.startDragging(); }}>
+	{#if !isMobile}
 	<div class="window-controls">
 		<button class="window-close" onclick={() => appWindow.close()} title="Close">
 			<svg width="10" height="10" viewBox="0 0 10 10">
@@ -44,6 +52,7 @@
 			</svg>
 		</button>
 	</div>
+	{/if}
 	<div class="picker-card">
 		<div class="logo">
 			<svg width="72" height="72" viewBox="0 0 48 48" fill="none">
@@ -58,7 +67,11 @@
 		</div>
 		<h1>HelixNotes</h1>
 		<p class="subtitle">Local markdown notes</p>
+		{#if isMobile}
+			<p class="description">Notes are stored in Documents/HelixNotes as Markdown files. Sync with Nextcloud, Syncthing, or any file sync app.</p>
+		{:else}
 			<p class="description">Your notes are stored as standard Markdown (.md) files. Pick any folder — existing .md files will be recognized automatically.</p>
+		{/if}
 
 		{#if error}
 			<div class="error">{error}</div>
@@ -67,18 +80,20 @@
 		<button class="btn-primary" onclick={pickFolder} disabled={loading}>
 			{#if loading}
 				Opening...
+			{:else if isMobile}
+				Get Started
 			{:else}
 				Open Notes Folder
 			{/if}
 		</button>
 
-		{#if $appConfig?.active_vault}
+		{#if !isMobile && $appConfig?.active_vault}
 			<button class="btn-back" onclick={() => ($vaultReady = true)}>
 				Back
 			</button>
 		{/if}
 
-		{#if recentVaults.length > 0}
+		{#if !isMobile && recentVaults.length > 0}
 			<div class="recent">
 				<span class="recent-label">Recent</span>
 				{#each recentVaults as vault}
@@ -260,4 +275,24 @@
 		text-overflow: ellipsis;
 		white-space: nowrap;
 	}
+
+	/* Mobile */
+	.mobile .btn-primary {
+		padding: 14px 20px;
+		font-size: 16px;
+		border-radius: 12px;
+	}
+
+	.mobile .description {
+		font-size: 14px;
+	}
+
+	.mobile h1 {
+		font-size: 28px;
+	}
+
+	.mobile .logo :global(svg) {
+		width: 88px;
+		height: 88px;
+	}
 </style>

src/lib/stores/app.ts

@@ -38,6 +38,11 @@ export const activeNotePath = writable<string | null>(null);
 export const activeNotebook = writable<NotebookEntry | null>(null);
 export const activeTag = writable<string | null>(null);
 
+// Mobile state
+export const mobileView = writable<"sidebar" | "notelist" | "editor">(
+  "sidebar",
+);
+
 // Editor state
 export const editorDirty = writable(false);
 export const sourceMode = writable(false);

src/lib/types.ts

@@ -41,6 +41,7 @@ export interface AppConfig {
   accent_color: string | null;
   font_size: number | null;
   font_family: string | null;
+  line_height: number | null;
   compact_notes: boolean;
   time_format: string;
   gpu_acceleration: boolean;

src/lib/utils/window.ts

@@ -0,0 +1,42 @@
+import { WebviewWindow } from '@tauri-apps/api/webviewWindow';
+
+const openNoteWindows = new Map<string, string>();
+
+export async function openNoteWindow(notePath: string, noteTitle: string) {
+	const existingLabel = openNoteWindows.get(notePath);
+	if (existingLabel) {
+		const existing = await WebviewWindow.getByLabel(existingLabel);
+		if (existing) {
+			await existing.show();
+			await existing.unminimize();
+			await existing.setFocus();
+			return;
+		}
+		openNoteWindows.delete(notePath);
+	}
+
+	const label = `note-${Date.now()}`;
+	const url = `/?note=${encodeURIComponent(notePath)}`;
+
+	const noteWindow = new WebviewWindow(label, {
+		url,
+		title: `${noteTitle} - HelixNotes`,
+		width: 900,
+		height: 700,
+		minWidth: 500,
+		minHeight: 400,
+		decorations: false,
+		center: true
+	});
+
+	openNoteWindows.set(notePath, label);
+
+	noteWindow.once('tauri://destroyed', () => {
+		openNoteWindows.delete(notePath);
+	});
+
+	noteWindow.once('tauri://error', (e) => {
+		console.error('Failed to create note window:', e);
+		openNoteWindows.delete(notePath);
+	});
+}

src/routes/+layout.svelte

@@ -8,6 +8,8 @@
 
 	let { children } = $props();
 
+	const isMobile = /android|ios/i.test(navigator.userAgent);
+
 	// Reactively apply theme class to <html> whenever $theme changes
 	$effect(() => {
 		const t = $theme;
@@ -31,10 +33,12 @@
 		return resolved.join('/');
 	}
 
-	// Detect install type and check for updates on startup
+	// Detect install type and check for updates on startup (skip on mobile — updates via app store)
 	onMount(() => {
+		if (!isMobile) {
 			getInstallType().then(t => installType.set(t)).catch(() => {});
 			checkForUpdate();
+		}
 	});
 
 	// Intercept all link clicks in capture phase to prevent webview navigation
@@ -74,7 +78,7 @@
 	});
 </script>
 
-<svelte:document oncontextmenu={(e) => e.preventDefault()} />
+<svelte:document oncontextmenu={(e) => { if (!isMobile) e.preventDefault(); }} />
 
 <svelte:head>
 	<title>HelixNotes</title>

src/routes/+page.svelte

@@ -4,10 +4,19 @@
 	import { getAppConfig, openVault } from '$lib/api';
 	import VaultPicker from '$lib/components/VaultPicker.svelte';
 	import AppLayout from '$lib/components/AppLayout.svelte';
+	import NoteWindow from '$lib/components/NoteWindow.svelte';
 
 	let loading = $state(true);
+	let noteWindowPath = $state<string | null>(null);
 
 	onMount(async () => {
+		// Check for note window mode
+		const params = new URLSearchParams(window.location.search);
+		const notePath = params.get('note');
+		if (notePath) {
+			noteWindowPath = notePath;
+		}
+
 		try {
 			const config = await getAppConfig();
 			$appConfig = config;
@@ -25,6 +34,9 @@
 			if (config.font_size) {
 				document.documentElement.style.setProperty('--editor-font-size', `${config.font_size}px`);
 			}
+			if (config.line_height) {
+				document.documentElement.style.setProperty('--editor-line-height', String(config.line_height));
+			}
 			if (config.font_family) {
 				const fontStacks: Record<string, string> = {
 					system: '-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif',
@@ -69,7 +81,10 @@
 			// Auto-open last vault if available
 			if (config.active_vault) {
 				try {
+					// Note windows don't re-open the vault (already open in main process)
+					if (!noteWindowPath) {
 						await openVault(config.active_vault);
+					}
 					$vaultReady = true;
 				} catch {
 					// Vault path might not exist anymore
@@ -86,6 +101,8 @@
 	<div class="loading">
 		<div class="spinner"></div>
 	</div>
+{:else if noteWindowPath}
+	<NoteWindow notePath={noteWindowPath} />
 {:else if $vaultReady}
 	<AppLayout />
 {:else}