Improve Request Breakdown UI with better contrast and text handling

Enhances the visual presentation and usability of the Request Breakdown page with improved typography and column constraints.

Changes:
- Update header colors (h2, h3) from #333 to white for better contrast against dark backgrounds
- Fix category column text wrapping with intelligent word breaking and proper line height
- Add table layout constraints to prevent horizontal overflow
- Improve mobile typography with responsive font sizing for category names
- Add hyphenation support for long hostnames and domain names

Benefits:
- Better accessibility and readability with higher contrast headers
- Prevents table layout issues with long hostnames
- Maintains responsive design across all screen sizes
- Professional appearance with consistent text handling

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

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

src/components/RequestBreakdown.module.css

@@ -6,7 +6,7 @@
 
 .container h2 {
   margin-bottom: 30px;
-  color: #333;
+  color: white;
   font-size: 28px;
   font-weight: 600;
 }
@@ -77,7 +77,7 @@
 
 .breakdownSection h3 {
   margin-bottom: 20px;
-  color: #333;
+  color: white;
   font-size: 22px;
   font-weight: 600;
   border-bottom: 2px solid #e0e0e0;
@@ -89,6 +89,8 @@
   border-radius: 8px;
   overflow: hidden;
   box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
+  width: 100%;
+  table-layout: fixed;
 }
 
 .tableHeader {
@@ -126,6 +128,10 @@
 .categoryName {
   font-weight: 600;
   color: #333;
+  word-break: break-word;
+  overflow-wrap: break-word;
+  hyphens: auto;
+  line-height: 1.3;
 }
 
 .percentageCell {
@@ -206,12 +212,19 @@
     font-size: 13px;
   }
 
+  .categoryName {
+    font-size: 12px;
+    line-height: 1.3;
+  }
+
   .breakdownSection h3 {
     font-size: 18px;
+    color: white;
   }
 
   .container h2 {
     font-size: 24px;
+    color: white;
   }
 }