diff --git a/frontend/src/routes/admin/+page.svelte b/frontend/src/routes/admin/+page.svelte
index 9831e7f..90062cb 100644
--- a/frontend/src/routes/admin/+page.svelte
+++ b/frontend/src/routes/admin/+page.svelte
@@ -1075,11 +1075,23 @@
   .cactions .cchk { font-size: 0.8rem; color: var(--muted); display: inline-flex; align-items: center; gap: 5px; }
 
   /* Source health table */
-  .tablewrap { overflow-x: auto; }
+  /* Constrained scroll box: the table scrolls BOTH ways inside its own panel, so
+     the horizontal scrollbar stays on-screen instead of living at the bottom of a
+     46-row table you'd have to page down to reach. Header row stays sticky. */
+  .tablewrap {
+    max-height: 65vh; overflow: auto;
+    border: 1px solid var(--line); border-radius: 12px; background: var(--surface);
+  }
   .srctable { width: 100%; border-collapse: collapse; font-size: 0.86rem; min-width: 560px; }
+  .srctable thead th {
+    position: sticky; top: 0; z-index: 1; background: var(--surface);
+    /* box-shadow draws the divider reliably under position:sticky (a plain
+       border-bottom can drop out while scrolling with border-collapse). */
+    box-shadow: inset 0 -1px 0 var(--line);
+  }
   .srctable th {
     text-align: left; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em;
-    color: var(--muted); font-weight: 600; padding: 6px 10px; border-bottom: 1px solid var(--line);
+    color: var(--muted); font-weight: 600; padding: 8px 10px;
   }
   .srctable td { padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: baseline; }
   .srctable .num { text-align: right; font-variant-numeric: tabular-nums; }