diff --git a/src/gui/components/_legacy.py b/src/gui/components/_legacy.py
index 1c5ab98..31a2ea4 100644
--- a/src/gui/components/_legacy.py
+++ b/src/gui/components/_legacy.py
@@ -83,10 +83,18 @@ footer {
 [data-testid="stSidebarNav"] a[href$="/close/"] {
     display: none !important;
 }
-/* Reclaim top padding lost from hidden header. Slim the bottom too —
-   Streamlit's default leaves several rems below the last widget. */
+/* Reclaim top padding lost from hidden header. Streamlit's default
+   block-container padding-top is ~6rem (room for the header it ships).
+   We hide the header so reclaim that space — the page title should sit
+   close to the top edge. Slim the bottom too — Streamlit's default
+   leaves several rems below the last widget.
+   The testid was renamed from ``stAppViewBlockContainer`` (legacy) to
+   ``stMainBlockContainer`` in the current Streamlit release; match
+   both so the rule keeps working across versions. */
 .stAppViewBlockContainer,
-[data-testid="stAppViewBlockContainer"] {
+[data-testid="stAppViewBlockContainer"],
+.stMainBlockContainer,
+[data-testid="stMainBlockContainer"] {
     padding-top: 0.5rem !important;
     padding-bottom: 0.75rem !important;
 }
@@ -583,7 +591,11 @@ div[data-testid="stContainer"][data-border="true"] {
     padding: 14px 18px;
     border-bottom: 1px solid var(--border);
     background: var(--surface-hover);
-    margin: -1rem -1rem 0;
+    /* -1rem on top/sides bleeds the head to the card edges (the parent
+       ``st.container(border=True)`` has 1rem padding). +0.75rem on the
+       bottom is the breathing room before the first finding row —
+       without it the row sits flush against the head's bottom border. */
+    margin: -1rem -1rem 0.75rem;
     border-radius: var(--r-lg) var(--r-lg) 0 0;
 }
 .dt-severity-dot {