:root {
  --vivid-display: "Arial Black", Impact, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --vivid-body: Inter, "Helvetica Neue", "Hiragino Sans", "Yu Gothic", sans-serif;
}

body { font-family: var(--vivid-body); }
h1, h2, h3 { font-family: var(--vivid-display); }