:root{
/* 6px radius everywhere — the only radius */
--radius:6px;
/* spacing scale */
--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--space-9:96px;
/* shadows — restrained, cool-toned */
--shadow-card:0 1px 3px rgba(13,31,53,.08),0 4px 16px rgba(13,31,53,.06);
--shadow-raised:0 8px 32px rgba(13,31,53,.16);
--shadow-focus:0 0 0 3px var(--focus-ring);
}