diff --git a/src/md_to_html.py b/src/md_to_html.py
index 3c5f0bc..bb87a8d 100644
--- a/src/md_to_html.py
+++ b/src/md_to_html.py
@@ -85,6 +85,7 @@ body {
 .toc a:hover { color: var(--text); }
 .toc a.active { color: var(--accent); border-left-color: var(--accent); }
 .toc a.toc-h3 { padding-left: 1.5rem; font-size: 0.94em; }
+.toc a.toc-h4 { padding-left: 2.3rem; font-size: 0.88em; opacity: 0.85; }
 .wrap {
     flex: 1 1 auto;
     min-width: 0;
@@ -347,7 +348,7 @@ def badge_findings_table(html_text):
                 cell_html,
             )
             cell_html = re.sub(
-                rf"(<h4[^>]*>)\[{severity}\]",
+                rf"(<h4[^>]*>)\[{severity}\]\s*",
                 rf'\1<span class="badge {css_class}">{severity}</span> ',
                 cell_html,
             )
@@ -367,17 +368,17 @@ def wrap_timestamps(html_text):
     return RFC3339_UTC_RE.sub(r'<span class="ts" data-utc="\1">\1</span>', html_text)
 
 
-HEADING_RE = re.compile(r'<h([23]) id="([^"]+)">(.*?)</h\1>', re.S)
+HEADING_RE = re.compile(r'<h([234]) id="([^"]+)">(.*?)</h\1>', re.S)
 
 
 def build_toc(body_html):
-    """Sidebar nav linking to every h2/h3 in the report (h4 finding headers
-    are left out -- there can be many of those and they'd swamp the nav)."""
+    """Sidebar nav linking to every h2/h3/h4 in the report, including each
+    individual finding's detail-list table (h4) so they're one click away."""
     items = []
     for level, anchor_id, text in HEADING_RE.findall(body_html):
-        label = re.sub(r"<[^>]+>", "", text).strip()
-        css_class = " toc-h3" if level == "3" else ""
-        items.append(f'<a class="{css_class.strip()}" href="#{anchor_id}">{label}</a>')
+        label = re.sub(r"\s+", " ", re.sub(r"<[^>]+>", "", text)).strip()
+        css_class = {"3": "toc-h3", "4": "toc-h4"}.get(level, "")
+        items.append(f'<a class="{css_class}" href="#{anchor_id}">{label}</a>')
 
     if not items:
         return ""