Fix mobile top spacing (double header offset) + CTA/newsletter gap

On mobile, body already has padding-top:60px to clear the fixed header, but
every page ALSO added its own clearance — doubling it and leaving a ~60px
white gap under the menu (content sat too low). Trimmed each page's mobile
top offset so it relies on the body padding (matching .article-page, which
was already correct): page-content, support/hub/legal pages, and the
news-hub / news-article / blog / member heroes. Content now sits ~32-42px
under the header.

Also add a 32px top gap to .newsletter-cta on mobile so it no longer
touches the CTA/content above it.

CSS only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

css/pages/_legal.css

@@ -37,6 +37,11 @@
 .legal-note { font-size: 13px; line-height: 20px; color: #667085; text-align: center; margin: 4px auto 0; max-width: 640px; }
 .legal-note a { color: #2D738C; font-weight: 500; }
 
+@media (max-width: 768px) {
+    /* body already offsets the fixed header on mobile — avoid a double gap. */
+    .legal-page { padding-top: 0; }
+    .legal-hero { padding-top: 32px; }
+}
 @media (max-width: 600px) {
     .legal-hero h1 { font-size: 30px; }
     .legal-row { flex-direction: column; gap: 2px; }