:root{
/* Flat by default. Shadow signals "floating above the page", nothing else. */
--shadow-none:none;
--shadow-sm:0 1px 2px rgba(0,0,0,.10);
--shadow-md:0 4px 16px rgba(0,0,0,.12);
--shadow-lg:0 16px 48px rgba(0,0,0,.20);
--shadow-modal:0 32px 80px rgba(0,0,0,.45);
--shadow-accent:0 8px 32px var(--tedx-red-glow);
--inset-hairline:inset 0 -1px 0 var(--border-subtle);
--blur-panel:blur(18px) saturate(120%); /* @kind other */
}