From b23ea90d90521f4615a2f607f49bc8151d31da0e Mon Sep 17 00:00:00 2001
From: cydia2001 <cydia2001@duck.com>
Date: Wed, 11 Mar 2026 01:57:47 +0000
Subject: [PATCH] fix: widen centered homepage container

Keep the homepage frontpage wrapper centered while ensuring it uses at least 80% of the available content area, without changing normal body page layout.
---
 tests/test_prepare_mdbook.py | 2 +-
 tools/prepare_mdbook.py      | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/tests/test_prepare_mdbook.py b/tests/test_prepare_mdbook.py
index 3a5324a..fec8cf3 100644
--- a/tests/test_prepare_mdbook.py
+++ b/tests/test_prepare_mdbook.py
@@ -192,7 +192,7 @@ Reference :cite:`smith2024`.
             self.assertIn("padding: 0 !important;", rewritten)
             self.assertIn("border-radius: 6px;", rewritten)
             self.assertIn("background: #f6f8fa;", rewritten)
-            self.assertIn("max-width: var(--content-max-width);", rewritten)
+            self.assertIn("width: min(100%, max(80%, var(--content-max-width)));", rewritten)
             self.assertIn("margin-inline: auto;", rewritten)
 
     def test_regular_page_does_not_render_frontpage_switch(self) -> None:
diff --git a/tools/prepare_mdbook.py b/tools/prepare_mdbook.py
index 716d1bb..2fd9f7d 100644
--- a/tools/prepare_mdbook.py
+++ b/tools/prepare_mdbook.py
@@ -25,8 +25,7 @@ FRONTPAGE_SWITCH_PLACEHOLDER = "<!-- OPENMLSYS_LANGUAGE_SWITCH -->"
 FRONTPAGE_LAYOUT_CSS = """
 <style>
 .openmlsys-frontpage {
-  width: 100%;
-  max-width: var(--content-max-width);
+  width: min(100%, max(80%, var(--content-max-width)));
   margin: 0 auto 3rem;
   margin-inline: auto;
 }