The golden rule
Never edit parent theme files. Child theme or Elementor Site Settings. Every Fiverr client who edited parent files directly came back with a broken site after an update.
When Elementor is enough
Hello Elementor + Elementor Pro handles 90% of client requests. Global colors, Theme Builder headers, single post templates—I use the same stack on Bright Mind Gallery.
When you need custom CSS
Pillar tag colors, sticky nav tweaks, typography fixes Elementor can’t reach. Keep snippets in WPCode, not scattered across widgets.