:root { --black-trans-40: oklch(from var(--black) l c h / 0.4); --black-trans-30: oklch(from var(--black) l c h / 0.3); --black-trans-20: oklch(from var(--black) l c h / 0.2); --black-trans-10: oklch(from var(--black) l c h / 0.1); }