The fastest way to make a design look cheap is to make everything shout. Gold everywhere reads as gaudy; gold in the right place reads as precious.
Choose one hero moment for your accent — a headline word, a single button, a thin border — and let the rest breathe in calm, dark neutrals.
“Restraint is the loudest form of confidence.”
Negative space is not empty space. It's the frame that makes the accent feel intentional and expensive.
When in doubt, remove. The most premium layouts are the ones that had the courage to leave things out.