Widen credential embeds and container

css/styles.css

@@ -342,6 +342,10 @@ section { padding: 64px 0; }
 .skill-card li { padding: 2px 0; }
 
 /* ---------- Certifications & Credentials ---------- */
+#credentials .container {
+  max-width: 1320px;
+}
+
 .credentials-grid {
   display: grid;
   grid-template-columns: repeat(3, minmax(0, 1fr));
@@ -349,6 +353,7 @@ section { padding: 64px 0; }
 }
 
 .credential-card {
+  min-width: 0;
   background: var(--panel);
   border: 1px solid var(--rule);
   border-top: 3px solid var(--steel);
@@ -377,7 +382,7 @@ section { padding: 64px 0; }
 }
 
 .parchment-embed iframe {
-  width: 300px;
+  width: 370px;
   max-width: 100%;
   height: 167px;
   border: 0;