:root{
/* profundidade vem de luz, não de sombra cinza */
--shadow-panel:0 0 0 1px rgba(255,255,255,0.06),0 24px 64px rgba(0,0,0,0.50);
--shadow-window:0 0 0 1px rgba(255,255,255,0.08),0 48px 140px rgba(0,0,0,0.65);
--inner-light:inset 0 1px 0 rgba(255,255,255,0.06); /* @kind shadow */
--inner-light-hover:inset 0 1px 0 rgba(255,255,255,0.12); /* @kind shadow */
--ring-focus:0 0 0 2px var(--bg-canvas),0 0 0 4px var(--accent); /* @kind shadow */
--blur-nav:saturate(140%) blur(16px); /* @kind other */
--blur-sheet:blur(24px); /* @kind other */
}