/* ============================================================
   AI BUSINESS SOCIETY — SPACING, RADIUS, BORDERS, SHADOWS, MOTION
   ============================================================ */

:root {
  /* ---- Spacing scale (4px base) -------------------------- */
  --space-0:  0;
  --space-1:  0.25rem;   /* 4 */
  --space-2:  0.5rem;    /* 8 */
  --space-3:  0.75rem;   /* 12 */
  --space-4:  1rem;      /* 16 */
  --space-5:  1.5rem;    /* 24 */
  --space-6:  2rem;      /* 32 */
  --space-7:  2.5rem;    /* 40 */
  --space-8:  3rem;      /* 48 */
  --space-9:  4rem;      /* 64 */
  --space-10: 5rem;      /* 80 */
  --space-12: 7rem;      /* 112 — section rhythm */

  --container-max:  1200px;
  --container-prose: 680px;
  --gutter: var(--space-5);

  /* ---- Radii --------------------------------------------- */
  /* The badge is a soft, sturdy shape — generous but never pill-y
     on big surfaces. Pills reserved for tags & small controls.  */
  --radius-xs:  4px;
  --radius-sm:  7px;
  --radius-md:  11px;    /* default control / input */
  --radius-lg:  16px;    /* cards */
  --radius-xl:  24px;    /* feature panels */
  --radius-2xl: 32px;
  --radius-pill: 999px;  /* tags, chips, avatars */

  /* ---- Border widths ------------------------------------- */
  --border-hair: 1px;
  --border-thin: 1.5px;
  --border-thick: 2px;
  --border-badge: 3px;   /* heavy badge outline accent */

  /* ---- Shadows ------------------------------------------- */
  /* Warm, ink-tinted shadows — never cold gray/blue.          */
  --shadow-xs:  0 1px 2px rgba(15, 33, 31, 0.08);
  --shadow-sm:  0 2px 6px rgba(15, 33, 31, 0.10);
  --shadow-md:  0 6px 16px rgba(15, 33, 31, 0.12);
  --shadow-lg:  0 14px 34px rgba(15, 33, 31, 0.16);
  --shadow-xl:  0 26px 60px rgba(15, 33, 31, 0.20);
  /* Pressed / inset (paper-stamp feel) */
  --shadow-inset: inset 0 2px 4px rgba(15, 33, 31, 0.12);
  /* Brass focus glow */
  --shadow-focus: 0 0 0 3px rgba(200, 164, 92, 0.45);

  /* ---- Motion -------------------------------------------- */
  /* Confident, grounded — short eases, a subtle press-shrink.
     No bounces, no springy overshoot.                         */
  --ease-standard: cubic-bezier(0.22, 0.61, 0.36, 1); /* @kind other */
  --ease-out:      cubic-bezier(0.16, 1, 0.3, 1);     /* @kind other */
  --ease-in:       cubic-bezier(0.4, 0, 1, 1);        /* @kind other */
  --dur-fast:   120ms; /* @kind other */
  --dur-base:   200ms; /* @kind other */
  --dur-slow:   320ms; /* @kind other */
  --press-scale: 0.97; /* @kind other */
}