diff --git a/docs/build-manual.py b/docs/build-manual.py
index 06d33ee..eef32c1 100644
--- a/docs/build-manual.py
+++ b/docs/build-manual.py
@@ -621,7 +621,8 @@ def _inject_subheading_cards(body: str) -> str:
     cards = []
     for title in headings:
         safe_title = _jsx_attr_escape(title)
-        slug = re.sub(r"[^a-z0-9]+", "-", title.lower()).strip("-")
+        slug = re.sub(r"[^\w\s-]", "", title.lower())
+        slug = re.sub(r"[-\s]+", "-", slug).strip("-")
         cards.append(f'  <LinkCard title="{safe_title}" href="#{slug}" />')
     
     cardgrid = "<CardGrid>\n" + "\n".join(cards) + "\n</CardGrid>\n\n"
diff --git a/docs/manual/11-troubleshooting.md b/docs/manual/11-troubleshooting.md
index d4bb685..ec97710 100644
--- a/docs/manual/11-troubleshooting.md
+++ b/docs/manual/11-troubleshooting.md
@@ -91,7 +91,7 @@ Re-enable:
 
     set -Ue __fish_config_op_logging
 
-See [C5 — Logging and Capture](/07-customization/#c5--logging-and-capture) for the full component breakdown.
+See [C5 — Logging and Capture](/07-customization/#c5-logging-and-capture) for the full component breakdown.
 
 ## Change or Disable the Greeting
 
@@ -112,7 +112,7 @@ testing):
 
     set -Ue __fish_config_first_run_complete
 
-See [C6 — Greeting and First-Run UI](/07-customization/#c6--greeting-and-first-run-ui) for details.
+See [C6 — Greeting and First-Run UI](/07-customization/#c6-greeting-and-first-run-ui) for details.
 
 ## Secrets and Machine-Local Configuration
 
@@ -196,7 +196,7 @@ overrides):
 
     set -U __fish_config_op_overrides off
 
-See [C3 — Key and Environment Overrides](/07-customization/#c3--key-and-environment-overrides) for the full list of
+See [C3 — Key and Environment Overrides](/07-customization/#c3-key-and-environment-overrides) for the full list of
 what C3 controls.
 
 ## What's with the C1-C6 stuff?
@@ -205,12 +205,12 @@ This configuration groups its opinionated behaviors into six categories (C1–C6
 
     Category   Description
     ──────────────────────────────────────────────────────────────────────────
-    C1         [Command Shadows](/07-customization/#c1--command-shadows) (aliases that replace default tools)
-    C2         [Auto-Exec](/07-customization/#c2--auto-exec) (background tasks and startup side-effects)
-    C3         [Key & Env Overrides](/07-customization/#c3--key-and-environment-overrides) (Vi mode, PAGER)
-    C4         [Terminal Integrations](/07-customization/#c4--terminal-integrations) (Kitty, WezTerm)
-    C5         [Logging and Capture](/07-customization/#c5--logging-and-capture) (session logs, command duration)
-    C6         [Greeting & First-Run UI](/07-customization/#c6--greeting-and-first-run-ui) (custom startup banner)
+    C1         [Command Shadows](/07-customization/#c1-command-shadows) (aliases that replace default tools)
+    C2         [Auto-Exec](/07-customization/#c2-auto-exec) (background tasks and startup side-effects)
+    C3         [Key & Env Overrides](/07-customization/#c3-key-and-environment-overrides) (Vi mode, PAGER)
+    C4         [Terminal Integrations](/07-customization/#c4-terminal-integrations) (Kitty, WezTerm)
+    C5         [Logging and Capture](/07-customization/#c5-logging-and-capture) (session logs, command duration)
+    C6         [Greeting & First-Run UI](/07-customization/#c6-greeting-and-first-run-ui) (custom startup banner)
 
 Disable all opinionated features at once (Minimal Mode):
 
diff --git a/docs/manual/index.md b/docs/manual/index.md
index 9b9fad0..fcc6d4a 100644
--- a/docs/manual/index.md
+++ b/docs/manual/index.md
@@ -35,7 +35,7 @@ output, file contents, and secrets printed to the terminal. Nothing leaves
 your machine, but the files persist locally.
 - Disable all logging with: `set -U __fish_config_op_logging off`
 - Prefer a menu? Run the interactive picker: `config-settings`
-- See [C5 — Logging and Capture](/07-customization/#c5--logging-and-capture) for the full breakdown.
+- See [C5 — Logging and Capture](/07-customization/#c5-logging-and-capture) for the full breakdown.
 
 The configuration uses a structured file tree: