:root{
/* Dark theme: separation comes from the neutral steps (surface → card → pop-out) and 1px borders; shadows are deep and quiet. */
--shadow-none:none;
--shadow-hairline:0 0 0 1px var(--border-subtle);
--shadow-sm:0 1px 2px rgba(0,0,0,.40);
--shadow-md:0 6px 20px -6px rgba(0,0,0,.60);
--shadow-lg:0 24px 60px -12px rgba(0,0,0,.72);
--shadow-accent:0 12px 32px -12px rgba(227,23,90,.55);
--shadow-inset-top:inset 0 1px 0 rgba(255,255,255,.05);
--ring-focus:0 0 0 3px var(--focus-ring);
--glow-brand:0 0 0 1px rgba(214,42,206,.35),0 0 40px -8px rgba(227,23,90,.45);
}