Fix blank page: CSS height fix + error handling

Inspired by A Dark Room (resource management, incremental progression)
and The Jejune Institute (ARG mystery, layered narrative, multiple endings).

- Terminal-based gameplay with typewriter effects
- 4 phases: Reception → Decoding → Transmission → Awakening
- Resource system: Power, Bandwidth, Data
- 9 upgradable buildings (antenna, receiver, decoder, etc.)
- 10 explorable facility rooms with narrative content
- 5 NPC visitors with dialogue trees
- 12 signal transmissions, 8 research logs
- 4 endings: Contact, Silence, Truth, Sacrifice
- Spectrum analyzer and facility map canvases
- Save/load via localStorage
- Mobile-friendly with action buttons

README.md

@@ -1,44 +1,51 @@
 # Signal Elsewhere
 
-An interactive educational experience about money, technology, food, and health — built as a Capacitor Android app.
+A text-based mystery/incremental game inspired by *A Dark Room* and *The Jejune Institute*.
 
-## Development
+You awaken at a terminal in abandoned Lab 484. A signal pulses from somewhere unknown.
+Build equipment, decode transmissions, explore the facility, and uncover the truth about "Elsewhere."
 
-The app is a single-page HTML/JS application. No build step is needed for the web version.
+## Play
+
+Serve locally:
 
 ```bash
-# Serve locally for development
 python3 -m http.server 8080
-# or
-npx serve .
 ```
 
-Open `http://localhost:8080` in your browser.
+Open `http://localhost:8080` in your browser. Type `START` to begin.
+
+## Commands
+
+| Command | Description |
+|---|---|
+| LISTEN | Tune the receiver for signals |
+| BUILD <type> | Construct equipment (antenna, receiver, battery, etc.) |
+| DECODE | Analyze signal data |
+| EXPLORE | Search facility rooms |
+| TALK <name> | Speak with visitors |
+| TRANSMIT <msg> | Send a signal |
+| CHOOSE <path> | Choose your ending path |
+| STAND | Face the final choice |
+| STATUS | Check resources and progress |
+| SPECTRUM | Open signal visualizer |
+| MAP | Open facility map |
+| SAVE / LOAD | Save management |
+| HELP | Show all commands |
 
 ## Android Build
 
 ```bash
-# Install dependencies
 npm install
-
-# Copy web assets to Android
-npx cap copy
-
-# Sync Capacitor config
 npx cap sync android
-
-# Open in Android Studio
 npx cap open android
 ```
 
-From Android Studio, build and run on a device or emulator.
-
 ## Structure
 
-- `index.html` — main application source
+- `index.html` — single-file game source
-- `www/` — production web directory (copied to Android)
+- `www/` — production web assets
 - `android/` — Android project (Capacitor)
-- `capacitor.config.json` — Capacitor configuration
 
 ## License