refactor button elements; change button types for search and filter actions in admin pages

public/admin/assets/css/intel.css

@@ -2,6 +2,7 @@
 
 
 /* ── intel stats ── */
+/* default card — used by the stats.html throughput tiles as standalone cards */
 
 .intel-stat-card {
   background: var(--bg-card);
@@ -31,6 +32,37 @@
 }
 
 
+/* ── intel stats row (the 6-up on intel pages) ──────────────────────────── */
+/* one integrated strip with edge-to-edge separators, mirrors the top
+   stats-bar. we wrap the ordinary .intel-stat-card children and strip
+   their individual borders + radius so the container reads as one unit. */
+
+#intel-stats-row {
+  display: flex;
+  flex-wrap: wrap;
+  background: var(--bg-card);
+  border: 1px solid var(--border);
+  border-radius: var(--radius-lg);
+  overflow: hidden;
+  margin-bottom: 24px;
+  gap: 0;
+}
+
+#intel-stats-row .intel-stat-card {
+  background: transparent;
+  border: none;
+  border-radius: 0;
+  border-right: 1px solid var(--border);
+  padding: 16px 28px;
+  flex: 0 0 auto;
+  min-width: 140px;
+}
+
+#intel-stats-row .intel-stat-card:last-child {
+  border-right: none;
+}
+
+
 /* ── intel detail body (modal) ── */
 
 .intel-body {