tidy internal tooling

static/css/style.css

@@ -356,8 +356,27 @@ h1, h2, h3, h4 { margin: 0; }
 .int-breakdown-row__label { color: var(--muted); }
 .int-breakdown-row__val { font-weight: 600; color: var(--text-strong); font-variant-numeric: tabular-nums; }
 
+.int-summary-grid {
+  display: grid;
+  grid-template-columns: repeat(4, 1fr);
+  gap: 1px;
+  background: var(--border);
+  border-radius: 10px;
+  overflow: hidden;
+}
+.int-summary-item {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  padding: 16px 20px;
+  background: var(--surface);
+}
+.int-summary-item__val { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--text-strong); line-height: 1; }
+.int-summary-item__label { font-size: 12px; color: var(--muted); }
+
 @media (max-width: 900px) {
   .int-hero-grid { grid-template-columns: repeat(2, 1fr); }
+  .int-summary-grid { grid-template-columns: repeat(2, 1fr); }
   .admin-searchbar {
     grid-template-columns: 1fr;
   }