feat: add smart font colors for wood paneling backgrounds

- Add data-wood attribute to collections container for CSS targeting
- Update woodPaneling.ts and woodPanelingInit.ts to set/remove attribute
- Add CSS variables for wood-specific text colors (dark text on light wood, light text on dark wood)
- Add !important rules to override theme colors when wood is active
- Replace wood-dark and wood-mahogany textures with darker variants
- Add subtle borders to book cards on wood backgrounds

web/static/input.css

@@ -206,4 +206,53 @@
   .bg-wood-inactive {
     background-color: var(--bg-secondary) !important;
   }
+
+  /* Smart text colors for wood paneling backgrounds */
+  /* Wood Light - needs dark text for contrast */
+  #collections-container[data-wood="wood-light"] {
+      --wood-text-primary: #1a1a1a;
+      --wood-text-secondary: #4a4a4a;
+      --wood-border: #2a2a2a;
+  }
+
+  /* Wood Dark - needs medium text */
+  #collections-container[data-wood="wood-dark"] {
+      --wood-text-primary: #d0d0d0;
+      --wood-text-secondary: #a0a0a0;
+      --wood-border: #5a4a3a;
+  }
+
+  /* Wood Mahogany - needs light text (darkest background) */
+  #collections-container[data-wood="wood-mahogany"] {
+      --wood-text-primary: #f5f5f5;
+      --wood-text-secondary: #c0c0c0;
+      --wood-border: #5c3317;
+  }
+
+  /* Apply wood-specific text colors to all text within collections container */
+  #collections-container[data-wood] h1,
+  #collections-container[data-wood] h2,
+  #collections-container[data-wood] h3,
+  #collections-container[data-wood] p,
+  #collections-container[data-wood] span,
+  #collections-container[data-wood] a,
+  #collections-container[data-wood] button {
+      color: var(--wood-text-primary) !important;
+  }
+
+  #collections-container[data-wood] .text-sm,
+  #collections-container[data-wood] .text-secondary,
+  #collections-container[data-wood] p.text-sm {
+      color: var(--wood-text-secondary) !important;
+  }
+
+  /* Preserve accent color for links */
+  #collections-container[data-wood] a[style*="accent"] {
+      color: var(--accent) !important;
+  }
+
+  /* Add subtle borders to book cards on wood backgrounds */
+  #collections-container[data-wood] .book-card {
+      border: 1px solid var(--wood-border);
+  }
 }