update docs

docs/api-reference.md

@@ -4,8 +4,7 @@ Complete API documentation for Clojure TUI.
 
 ## Table of Contents
 
-- [tui.core](#tuicore) - Full async runtime
-- [tui.simple](#tuisimple) - Sync runtime (Babashka)
+- [tui.core](#tuicore) - Main runtime
 - [tui.render](#tuirender) - Hiccup rendering
 - [tui.input](#tuiinput) - Key input parsing
 - [tui.terminal](#tuiterminal) - Terminal control
@@ -15,7 +14,7 @@ Complete API documentation for Clojure TUI.
 
 ## tui.core
 
-Full-featured async runtime using core.async. Use this when you need timers, async commands, or background operations.
+Main runtime using core.async. Provides timers, async commands, background operations, and responsive layout support.
 
 ### run
 
@@ -31,7 +30,7 @@ Run a TUI application synchronously (blocks until quit).
 |-----|------|----------|-------------|
 | `:init` | any | Yes | Initial model value |
 | `:update` | function | Yes | `(fn [model msg] [new-model cmd])` |
-| `:view` | function | Yes | `(fn [model] hiccup)` |
+| `:view` | function | Yes | `(fn [model size] hiccup)` where size is `{:width w :height h}` |
 | `:init-cmd` | command | No | Initial command to execute |
 | `:fps` | integer | No | Frames per second (default: 60) |
 | `:alt-screen` | boolean | No | Use alternate screen (default: true) |
@@ -48,7 +47,7 @@ Run a TUI application synchronously (blocks until quit).
                     (if (tui/key= msg "q")
                       [model tui/quit]
                       [model nil]))
-          :view (fn [{:keys [count]}]
+          :view (fn [{:keys [count]} _size]
                   [:text (str "Count: " count)])
           :fps 30
           :alt-screen true})
@@ -238,62 +237,6 @@ Re-exported from `tui.render`. Render hiccup to ANSI string.
 
 ---
 
-## tui.simple
-
-Synchronous runtime compatible with Babashka. Same API as `tui.core` but without async commands.
-
-### run
-
-```clojure
-(run options)
-```
-
-Run a TUI application synchronously.
-
-**Parameters:**
-
-| Key | Type | Required | Description |
-|-----|------|----------|-------------|
-| `:init` | any | Yes | Initial model value |
-| `:update` | function | Yes | `(fn [model msg] [new-model cmd])` |
-| `:view` | function | Yes | `(fn [model] hiccup)` |
-| `:alt-screen` | boolean | No | Use alternate screen (default: true) |
-
-**Returns:** Final model value after quit
-
-**Example:**
-
-```clojure
-(require '[tui.simple :as tui])
-
-(tui/run {:init 0
-          :update (fn [model msg]
-                    (cond
-                      (tui/key= msg "q") [model tui/quit]
-                      (tui/key= msg "k") [(inc model) nil]
-                      :else [model nil]))
-          :view (fn [count]
-                  [:text (str "Count: " count)])})
-```
-
-### quit
-
-Same as `tui.core/quit`.
-
-### key=
-
-Same as `tui.core/key=`.
-
-### key-str
-
-Same as `tui.core/key-str`.
-
-### render
-
-Re-exported from `tui.render`.
-
----
-
 ## tui.render
 
 Converts hiccup data structures to ANSI-formatted strings.
@@ -715,8 +658,7 @@ The function must:
 
 | Namespace | Purpose |
 |-----------|---------|
-| `tui.core` | Full async runtime with all features |
-| `tui.simple` | Sync runtime for Babashka |
+| `tui.core` | Main runtime with Elm architecture and async commands |
 | `tui.render` | Hiccup to ANSI rendering |
 | `tui.input` | Key input parsing |
 | `tui.terminal` | Low-level terminal control |