chore(clean): remove dead CSS + normalize whitespace (tour CLN)

index.html: drop unused .reveal.d6 rule (markup uses d1-d5 only).

CV_Bastien_Chanot.html:
- remove dead `position: running(siteFooter)` — no `element()` consumer,
  and .footer-bar is `display:none` in @media print (the @page
  auto-numbered footer replaces it); on screen running() is an invalid
  position value, ignored.
- remove no-op `box-shadow: none` on .page (weasyprint ignores box-shadow;
  .page sets a shadow nowhere).
- remove dead `.skills-grid { font-size: 8.4pt }` (every direct child is a
  .skill-label/.skill-values div that sets its own size; no bare text).
- normalize stray blank lines.

Behavior-preserving: PDF regenerated from the edited HTML is byte-identical
to the pre-edit baseline (text sha256 + per-page PNG render hash match),
so CV_Bastien_Chanot.pdf is unchanged and the PDF=HTML invariant holds.

CV_Bastien_Chanot.html

@@ -44,14 +44,11 @@
     padding: 0;
   }
 
-
-
   .page {
     width: 210mm;
     max-width: 100%;
     margin: 0 auto;
     background: var(--page);
-
     overflow: hidden;
   }
 
@@ -312,8 +309,6 @@
     display: grid;
     grid-template-columns: 115px 1fr;
     gap: 1px 10px;
-    font-size: 8.4pt;
-
   }
 
   .skill-label {
@@ -405,7 +400,6 @@
 
   /* ── FOOTER ── */
   .footer-bar {
-    position: running(siteFooter);
     background: var(--dark);
     padding: 5px 20mm;
     display: flex;
@@ -435,7 +429,7 @@
         linear-gradient(160deg, #f5f3ec 0%, #edeadf 55%, #f2efe6 100%);
       padding: 0;
     }
-    .page { box-shadow: none; background: transparent; }
+    .page { background: transparent; }
     .cv-header { padding: 18px 14mm 14px; }
     .cv-body { padding: 10px 14mm 12px; background: transparent; }
 

index.html

@@ -344,7 +344,6 @@
   .reveal.d3 { animation-delay: .30s; }
   .reveal.d4 { animation-delay: .42s; }
   .reveal.d5 { animation-delay: .55s; }
-  .reveal.d6 { animation-delay: .68s; }
   @keyframes rise {
     to { opacity: 1; transform: translateY(0); }
   }