:root{
--sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;
--radius-0:0px;    /* default: PS2-era hard edges */
--radius-sm:4px;   /* small controls, buttons */
--radius-md:12px;  /* large wells only — never a control */
--radius-pill:999px;
/* corner semantics — the rule inside the player: */
--radius-marker:var(--radius-0);   /* non-interactive readouts: LIVE, viewer count, labels */
--radius-control:var(--radius-sm); /* anything clickable: buttons, close, mute, fields */
}