/* =============================================================
   Penumbra — Spacing, radii & layout tokens
   4px base unit; spacing grows geometrically. Small radius scale.
   ============================================================= */

:root {
  /* Spacing scale (4px base) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;
  --space-4xl: 72px;
  --space-section: 96px;
  --space-gutter: 24px;

  /* Radii */
  --radius-none: 0;
  --radius-xs: 2px;    /* checkboxes, badges, micro-controls */
  --radius-sm: 6px;    /* inputs, selects, segmented controls */
  --radius-md: 10px;   /* standard cards + panels */
  --radius-lg: 14px;   /* signature surfaces + dialogs */
  --radius-xl: 20px;   /* hero illustration containers only */
  --radius-full: 999px;/* pills, chips, avatars */

  /* Layout */
  --container-max: 1120px;
  --container-narrow: 720px;
  --control-height: 40px;
  --control-height-sm: 32px;
}