Update: add Prolog translation, 4A system design, Mermaid, Hextra partials & blog articles

assets/css/custom.css

@@ -85,8 +85,7 @@ html.dark .theme-toggle-light {
     width: 0.6em;
     height: 1.1em;
     background: #999;
-    vertical-align: text-bottom;
-    transform: translateY(-2px);
+    vertical-align: text-bottom; transform: translateY(-2px);
     margin-left: 1px;
     animation: vim-blink 0.8s step-end infinite;
 }
@@ -103,26 +102,4 @@ html.dark .theme-toggle-light {
     background: #ccc;
 }
 
-
-/* Center footer copyright on all screens */
-    justify-content: center !important;
-}
-
-
-/* Footer copyright always centered */
-.hextra-footer > div:last-child {
-    justify-content: center !important;
-}
-
-/* Remove top border from sidebar bottom section */
-.hextra-sidebar-container div[data-toggle-animation] {
-    border-top: none !important;
-}
-
-/* Keep cursor blinking even with reduced motion */
-@media (prefers-reduced-motion: reduce) {
-    #typewriter-text::after {
-        animation-duration: 0.8s !important;
-        animation-iteration-count: infinite !important;
-    }
-}
+/* Hide current page title in breadcrumb */