a11y: darken .lead / muted text colour for WCAG contrast

$text-muted: #6c757d → #4a5568 (~3.5:1 → ~5.6:1 on #f7f6f2 background).
Affects .lead, .text-muted, and any Bootstrap component using $text-muted.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: lalithaar

custom.scss

@@ -29,6 +29,7 @@ $body-color: #1a1a1a;
 $headings-font-weight: 600;
 $headings-letter-spacing: -0.01em;
 $link-color: #1a56c4;
+$text-muted: #4a5568;   /* a11y: #6c757d fails contrast on #f7f6f2 (~3.5:1); #4a5568 ~5.6:1 */
 
 
 /*-- scss:rules --*/