:root{
/* soft ambient shadows for cards on cream */
--shadow-sm:0 2px 6px rgba(18,36,28,.08);
--shadow-md:0 10px 24px rgba(18,36,28,.10);
--shadow-lg:0 24px 48px rgba(18,36,28,.14);
/* hard "sticker" offset shadow — the signature elevation of the brand */
--shadow-sticker:4px 4px 0 var(--oak-green-700);
--shadow-sticker-orange:4px 4px 0 var(--oak-orange-600);
--shadow-button:0 4px 0 var(--oak-orange-700);
--shadow-button-press:0 1px 0 var(--oak-orange-700);
--shadow-inset-sunken:inset 0 2px 4px rgba(18,36,28,.10);
}