diff --git a/tools/run.py b/tools/run.py
index 0fe08cc..7268ee7 100755
--- a/tools/run.py
+++ b/tools/run.py
@@ -17,6 +17,7 @@ from textual.app import App, ComposeResult
 from textual.containers import Horizontal, Vertical, VerticalScroll
 from textual.widgets import Button, Static, TabbedContent, TabPane
 from rich.markdown import Markdown as RichMarkdown
+from rich.theme import Theme
 
 # ── Optional miniaudio ────────────────────────────────────
 try:
@@ -44,6 +45,21 @@ LOG_PATH = LOG_DIR / f'{TODAY}.md'
 
 REFRESH_SECS = 2
 
+MARKDOWN_THEME = Theme({
+    "markdown.h1": "bold #ff6b6b on #2a0000",
+    "markdown.h2": "bold #ffd93d",
+    "markdown.h3": "bold italic #6bcbff",
+    "markdown.h4": "bold #95e1d3",
+    "markdown.code": "bold #00d2d3 on #002222",
+    "markdown.code_block": "on #1e1e2e",
+    "markdown.block_quote": "dim italic #8395a7",
+    "markdown.link": "underline #48dbfb",
+    "markdown.item": "#ff9f43",
+    "markdown.em": "italic #ff9ff3",
+    "markdown.strong": "bold #feca57",
+    "markdown.horizontal_rule": "dim #555555",
+})
+
 
 # ── Helpers ──────────────────────────────────────────────
 def ensure_log():
@@ -474,6 +490,7 @@ class ChaosTUI(App):
 
     def on_mount(self):
         ensure_log()
+        self.console._theme = MARKDOWN_THEME
         self._reload_book()
         self._render_book_page()
         self.set_interval(REFRESH_SECS, self._check_ambience)