/* ============================================================
   GridNorth Studio — Spacing & Layout Tokens
   A 4px base grid. Spreadsheet-grade tools breathe with
   consistent, predictable rhythm — never crowded, never loose.
   ============================================================ */

:root {
  /* ---- Spacing scale (4px base) -------------------------- */
  --space-0:   0;
  --space-1:   0.25rem; /*  4px */
  --space-2:   0.5rem;  /*  8px */
  --space-3:   0.75rem; /* 12px */
  --space-4:   1rem;    /* 16px */
  --space-5:   1.5rem;  /* 24px */
  --space-6:   2rem;    /* 32px */
  --space-7:   2.5rem;  /* 40px */
  --space-8:   3rem;    /* 48px */
  --space-9:   4rem;    /* 64px */
  --space-10:  5rem;    /* 80px */

  /* ---- Container widths ---------------------------------- */
  --container-sm:  640px;
  --container-md:  960px;
  --container-lg:  1200px;
  --container-xl:  1440px;

  /* ---- Layout ------------------------------------------- */
  --sidebar-w:     264px;
  --header-h:      64px;
  --gutter:        var(--space-5);
}