/* ============================================================
   ARENA · SPACING, RADII, ELEVATION
   Strong whitespace. Content-first. Magazine-like breathing room.
   ============================================================ */

:root {
  /* ---- Spacing scale (4px base) ------------------------- */
  --space-0:  0;
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  /* ---- Radii -------------------------------------------- */
  --radius-xs:   6px;
  --radius-sm:   10px;
  --radius-md:   12px;  /* inputs, selects                       */
  --radius-lg:   14px;  /* CTA buttons (brand spec)              */
  --radius-xl:   18px;  /* cards                                 */
  --radius-2xl:  24px;  /* feature panels                        */
  --radius-full: 999px; /* pills, avatars, toggles               */

  /* ---- Borders ------------------------------------------ */
  --border-width: 1px;
  --border-width-strong: 1.5px;

  /* ---- Elevation — soft, editorial, never heavy --------- */
  --shadow-xs:  0 1px 2px rgba(21, 21, 73, 0.05);
  --shadow-sm:  0 1px 3px rgba(21, 21, 73, 0.06), 0 1px 2px rgba(21, 21, 73, 0.04);
  --shadow-md:  0 4px 16px rgba(21, 21, 73, 0.07);
  --shadow-lg:  0 12px 32px rgba(21, 21, 73, 0.10);
  --shadow-xl:  0 24px 60px rgba(21, 21, 73, 0.14);
  --shadow-purple: 0 10px 28px rgba(123, 94, 255, 0.28); /* lifted CTA / active plan */

  /* ---- Focus ring --------------------------------------- */
  --ring: 0 0 0 3px rgba(123, 94, 255, 0.28);

  /* ---- Motion — calm, confident; no bounce -------------- */
  --ease-out:   cubic-bezier(0.22, 1, 0.36, 1); /* @kind other */
  --ease-inout: cubic-bezier(0.65, 0, 0.35, 1); /* @kind other */
  --dur-fast:   140ms; /* @kind other */
  --dur-base:   220ms; /* @kind other */
  --dur-slow:   360ms; /* @kind other */

  /* ---- Layout ------------------------------------------- */
  --container-max: 1200px;
  --container-prose: 680px;
}