Update styles.css

public/styles.css

@@ -1,6 +1,5 @@
 /* ============================================================
-   THE FOLD WITHIN — Self-Organizing Framework v2.4.1
-   (Responsive fullscreen + mobile layout fix)
+   The Fold Within — Styles v2.5 Stable Render
    ============================================================ */
 
 :root {
@@ -16,7 +15,6 @@ html,body {
   background:var(--bg);color:var(--fg);
   font-family:system-ui,sans-serif;
   -webkit-font-smoothing:antialiased;
-  scroll-behavior:smooth;
 }
 
 /* Topbar */
@@ -30,66 +28,60 @@ html,body {
 .topbar a:hover{color:var(--fg);}
 .topbar button{
   font-size:24px;background:transparent;color:var(--accent);
-  border:none; padding:4px 8px; cursor:pointer; transition:color .2s;
+  border:none;padding:4px 8px;cursor:pointer;
 }
 .topbar button:hover{color:var(--fg);}
 
-/* Sidebar & overlay */
+/* Sidebar */
 .sidebar{
   position:fixed;top:48px;bottom:0;left:0;
   width:85%;max-width:320px;overflow-y:auto;
   background:#111;transform:translateX(-100%);
   transition:transform .3s ease;padding:10px;
-  z-index:200; will-change:transform; border-right:1px solid var(--line);
+  z-index:200;border-right:1px solid var(--line);
 }
 .sidebar.open{transform:translateX(0);}
 .overlay{
   position:fixed;inset:0;background:rgba(0,0,0,.45);
-  backdrop-filter:blur(4px); -webkit-backdrop-filter:blur(4px);
-  z-index:150; opacity:0; pointer-events:none; transition:opacity .3s ease;
+  backdrop-filter:blur(4px);opacity:0;pointer-events:none;
+  transition:opacity .3s ease;z-index:150;
 }
 .sidebar.open ~ .overlay{opacity:1;pointer-events:all;}
 
-/* Content (layout fix) */
+/* Content layout */
 .content{
-  display: flex;
-  flex-direction: column;
+  display:flex;flex-direction:column;
   min-height:calc(100vh - 48px);
-  padding: 16px;
-  transition: margin-left .3s ease;
-  max-width: 960px;
-  box-sizing: border-box;
+  padding:16px;transition:margin-left .3s ease;
+  max-width:960px;box-sizing:border-box;
 }
 @media(min-width:900px){
   .sidebar{transform:none!important;position:static;
-    width:280px; height:calc(100vh - 48px); z-index:auto; }
+    width:280px;height:calc(100vh - 48px);}
   .content{margin-left:280px;}
   .overlay{display:none!important;}
 }
 @media(max-width:899px){
   .content{margin-left:0!important;padding:12px;}
-  .viewer{ font-size:1.05em; line-height:1.6; }
 }
 
-/* Viewer */
-.viewer,
-#htmlView {
+/* Viewer stabilization */
+.viewer,#htmlView{
+  display:block;width:100%;
   flex:1 1 auto;
-  height: auto !important;
-  min-height: 0;
+  margin-top:0;padding-top:0;
+  min-height:calc(100vh - 48px);
   overflow-y:auto;
-  max-width: 820px;
-  margin: 0 auto;
-  padding-top: 8px;
-  padding-bottom: 40px;
+  transition:opacity .25s ease;
 }
-#htmlView{ width:100%; border:none; background:#0b0c10; }
+.viewer.fade-in,#htmlView.fade-in{opacity:1;}
+.viewer:not(.fade-in),#htmlView:not(.fade-in){opacity:0;}
+#htmlView{border:none;background:#0b0c10;}
 
-/* Markdown typography */
+/* Markdown formatting */
 #mdView h1,#mdView h2,#mdView h3{color:var(--accent);}
 #mdView pre,#mdView code{
-  overflow-x:auto; word-break:break-word;
-  background:#111; padding:.5em; border-radius:4px; color:var(--accent);
+  overflow-x:auto;background:#111;padding:.5em;border-radius:4px;color:var(--accent);
 }
 #mdView blockquote{
   border-left:3px solid var(--accent);
@@ -97,34 +89,30 @@ html,body {
 }
 #mdView a{color:var(--accent);}
 
-/* Markdown fallback warning */
+/* Warning */
 .md-warn{
   background:#3b0c0c;color:#ffd4d4;
   border:1px solid #6c1f1f;border-radius:8px;
   padding:10px 12px;margin:10px auto;max-width:820px;
-  font-size:.95em;
 }
 
-/* Meta + pager */
+/* Meta + Pager */
 .meta{color:var(--muted);margin-bottom:12px;font-size:.9em;}
 .pager{display:flex;justify-content:space-between;padding:8px 0;}
 button#prev,button#next{
   background:transparent;border:1px solid var(--line);color:var(--fg);
-  border-radius:8px; padding:4px 10px; font-size:.95em; cursor:pointer;
-  transition:all .2s ease;
+  border-radius:8px;padding:4px 10px;cursor:pointer;
 }
 button#prev:hover,button#next:hover{
   border-color:var(--accent);color:var(--accent);
 }
 
-/* Controls */
+/* Tree + controls */
 .controls{display:flex;gap:.5em;margin-bottom:8px;}
 select,#search{
   background:#0b0c10;color:var(--fg);border:1px solid var(--line);
   border-radius:4px;padding:6px;
 }
-
-/* Tree */
 .dir .label{display:flex;align-items:center;cursor:pointer;
   padding:4px 6px;color:var(--accent);font-weight:600;}
 .dir .label::before{content:"▶";margin-right:6px;font-size:.8em;color:var(--muted);}