/* Machine — elevation. Matiz slate/indigo, nunca preto puro. */
:root{
--sh-xs:0 1px 3px rgba(15,23,42,.06),0 1px 2px rgba(15,23,42,.04);
--sh-sm:0 2px 8px rgba(15,23,42,.08),0 1px 3px rgba(15,23,42,.05);
--sh-md:0 4px 20px rgba(15,23,42,.10),0 2px 6px rgba(15,23,42,.06);
--sh-lg:0 8px 40px rgba(15,23,42,.12),0 4px 12px rgba(15,23,42,.07);
--sh-focus:0 0 0 3px rgba(79,70,229,.20);
--sh-brand:0 0 0 3px rgba(79,70,229,.20),0 4px 20px rgba(15,23,42,.10);
}