Remove sidebar background for clean text-only design

Simplify sidebar to pure typography with no background:
- Remove gradient background, border, shadow, border-radius
- Set background to transparent throughout
- Remove padding backgrounds from all elements
- Simplify link hover (no background, just color change)
- Minimal current indicator (bold only, no background/border)
- Lighter, more minimal scrollbar
- Reduce heading emphasis and border weight
- Make context-path italic with subtle left border

Creates an elegant, minimal sidebar that's just smart text
positioned on the page, matching the literary aesthetic.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

kjvstudy_org/templates/base.html

@@ -120,37 +120,34 @@
             width: 220px;
             max-height: calc(100vh - 4rem);
             overflow-y: auto;
-            background: linear-gradient(to bottom, #fafafa 0%, #f8f8f8 100%);
-            border: 1px solid #ddd;
-            border-radius: 2px;
-            padding: 1.25rem;
+            background: transparent;
+            padding: 0;
             font-size: 0.8rem;
             line-height: 1.5;
-            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
             z-index: 100;
         }
 
         .nav-sidebar::-webkit-scrollbar {
-            width: 6px;
+            width: 4px;
         }
 
         .nav-sidebar::-webkit-scrollbar-track {
-            background: #f0f0f0;
+            background: transparent;
         }
 
         .nav-sidebar::-webkit-scrollbar-thumb {
-            background: #ccc;
-            border-radius: 3px;
+            background: #ddd;
+            border-radius: 2px;
         }
 
         .nav-sidebar h3 {
-            font-size: 0.9rem;
+            font-size: 0.85rem;
             font-weight: 600;
             font-style: italic;
-            margin: 0 0 0.75rem 0;
-            padding-bottom: 0.5rem;
-            border-bottom: 1px solid #ddd;
-            color: #333;
+            margin: 0 0 0.5rem 0;
+            padding-bottom: 0.4rem;
+            border-bottom: 1px solid #eee;
+            color: #555;
         }
 
         .nav-sidebar ul {
@@ -164,26 +161,21 @@
         }
 
         .nav-sidebar a {
-            color: #555;
+            color: #666;
             text-decoration: none;
             border-bottom: none;
             display: block;
-            padding: 0.25rem 0.5rem;
-            border-radius: 2px;
-            transition: all 0.2s;
+            padding: 0.2rem 0;
+            transition: color 0.2s;
         }
 
         .nav-sidebar a:hover {
             color: #000;
-            background: rgba(0,0,0,0.05);
         }
 
         .nav-sidebar a.current {
             color: #000;
-            background: rgba(0,0,0,0.08);
             font-weight: 600;
-            border-left: 3px solid #333;
-            padding-left: 0.75rem;
         }
 
         .nav-sidebar .testament-section {
@@ -204,18 +196,21 @@
         }
 
         .nav-sidebar .context-path {
-            background: #f0f0f0;
-            padding: 0.75rem;
+            background: transparent;
+            padding: 0 0 0.75rem 0;
             margin-bottom: 1rem;
-            border-left: 3px solid #666;
-            font-size: 0.8rem;
-            line-height: 1.8;
-            color: #555;
+            border-left: 2px solid #ccc;
+            padding-left: 0.5rem;
+            font-size: 0.75rem;
+            line-height: 1.6;
+            color: #666;
+            font-style: italic;
         }
 
         .nav-sidebar .context-path strong {
-            color: #000;
+            color: #333;
             font-weight: 600;
+            font-style: normal;
         }
 
         /* Hide sidebar on smaller screens */