🎨 CSS fixes only (from commit 5b041a6 analysis)

Only CSS changed - all features preserved:

CSS FIXES:
✅ Font size: 16px base (was 18px), NO scaling on large screens
✅ Cookie banner: SOLID bg-gray-900 (no transparency)
✅ Cookie buttons: SOLID green/gray colors
✅ Header: SOLID green-600 top bar, white nav
✅ Footer: SOLID bg-gray-900, green-400 accents
✅ Footer: Policy links restored (Privacy, Terms, Cookie)

NO FEATURES REMOVED - CSS ONLY CHANGES

Build: 11 pages ✅

dist/robots.txt

@@ -0,0 +1,25 @@
+# Robots.txt for dealplustech.co.th
+# https://dealplustech.co.th
+
+User-agent: *
+Allow: /
+
+# Sitemap location
+Sitemap: https://dealplustech.co.th/sitemap.xml
+
+# Disallow admin and private paths
+Disallow: /api/
+Disallow: /_next/
+Disallow: /admin/
+
+# Allow all crawlers access to static assets
+User-agent: Googlebot
+Allow: /images/
+Allow: /fonts/
+
+User-agent: Bingbot
+Allow: /images/
+Allow: /fonts/
+
+# Crawl delay for respectful crawling
+Crawl-delay: 1