update font and colors

Author: fneum

data-science-for-esm/_config.yml

@@ -7,7 +7,7 @@
 # Book settings
 title: Data Science for Energy System Modelling                         # The title of the book. Will be placed in the left navbar.
 author: Fabian Neumann                        # The author of the book
-copyright: "2022-2024"                     # Copyright year to be placed in the footer
+copyright: "2022-2025"                     # Copyright year to be placed in the footer
 logo: logo.png                          # A path to the book logo
 
 # Force re-execution of notebooks on each build.
@@ -51,3 +51,6 @@ sphinx:
   config:
     html_js_files:
     - https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.4/require.min.js
+    html_static_path: ["_static"]
+    html_css_files:
+    - custom.css

data-science-for-esm/_static/custom.css

@@ -0,0 +1,25 @@
+@import url('https://fonts.googleapis.com/css2?family=Overpass:wght@400;600;700&display=swap');
+
+/* Body + headings */
+body,
+h1, h2, h3, h4, h5, h6,
+p, li, dt, dd, blockquote,
+.navbar, .sidebar, .caption, .admonition {
+  font-family: 'Overpass', sans-serif !important;
+}
+
+@import url('https://fonts.googleapis.com/css2?family=Overpass+Mono:wght@400;600&display=swap');
+
+code, pre, kbd, samp {
+  font-family: 'Overpass Mono', monospace !important;
+}
+
+/* Change row hover color */
+.table tbody tr:hover {
+  background-color: #bbcde2 !important;  /* your custom color */
+}
+
+/* Pandas DataFrame hover rows */
+.dataframe tbody tr:hover {
+  background-color: #bdd1f6 !important;
+}