fix: unify description font styles across all sections

Consolidated all description paragraph styles to use consistent formatting:
- Removed separate .course-desc rule (0.85em)
- Removed separate .project-desc rule (0.95rem with different color)
- Updated combined rule to include all description classes:
  .award-desc, .course-desc, .project-desc, .experience-desc

All descriptions now use:
- font-size: 0.95em (courses style)
- color: var(--text-gray)
- line-height: 1.4
- text-align: justify

This ensures consistent typography across Awards, Courses, Projects, and Experience sections.

static/css/main.css

@@ -955,13 +955,7 @@ iconify-icon {
     color: #999;
 }
 
-.course-desc {
+/* Unified description styling - see combined rule below at line ~1669 */
-    font-size: 0.85em;
-    color: var(--text-gray);
-    margin-top: 0.4rem;
-    line-height: 1.4;
-    text-align: justify;
-}
 
 /* Projects */
 .project-item {
@@ -1046,13 +1040,7 @@ iconify-icon {
     color: #999;
 }
 
-.project-desc {
+/* Unified description styling - see combined rule below at line ~1669 */
-    font-size: 0.9rem;
-    color: var(--text-dark);
-    margin-top: 0.5rem;
-    line-height: 1.6;
-    text-align: justify;
-}
 
 .project-technologies {
     font-size: 0.85em;
@@ -1666,11 +1654,16 @@ a:focus {
     font-size: 0.875em;
 }
 
+/* Unified description styling for all sections */
 .award-desc,
-.course-desc {
+.course-desc,
+.project-desc,
+.experience-desc {
     margin-top: 0.5em;
     color: var(--text-gray);
     font-size: 0.95em;
+    line-height: 1.4;
+    text-align: justify;
 }
 
 .reference-item {