/* ============================================================
   KOI Group — Effects: radii, borders, shadows, motion
   Shadows are cool/navy-tinted and soft. Corners are gently
   rounded (classic-modern), never pill-everything.
   ============================================================ */

:root {
  /* ---- Radii ---- */
  --radius-xs:   3px;
  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   14px;
  --radius-xl:   20px;
  --radius-2xl:  28px;
  --radius-pill: 999px;
  --radius-card: var(--radius-lg);

  /* ---- Border widths ---- */
  --border-hair: 1px;
  --border-thin: 1.5px;
  --border-thick: 2px;

  /* ---- Shadows (navy-tinted, soft) ---- */
  --shadow-xs:  0 1px 2px rgba(14, 34, 56, 0.06);
  --shadow-sm:  0 1px 3px rgba(14, 34, 56, 0.08), 0 1px 2px rgba(14, 34, 56, 0.04);
  --shadow-md:  0 4px 12px rgba(14, 34, 56, 0.09), 0 2px 4px rgba(14, 34, 56, 0.05);
  --shadow-lg:  0 12px 28px rgba(14, 34, 56, 0.12), 0 4px 10px rgba(14, 34, 56, 0.06);
  --shadow-xl:  0 24px 52px rgba(14, 34, 56, 0.16), 0 8px 18px rgba(14, 34, 56, 0.08);
  --shadow-brand: 0 10px 28px rgba(27, 72, 121, 0.28);
  --shadow-focus: 0 0 0 3px rgba(46, 111, 214, 0.32);
  --shadow-inset: inset 0 1px 2px rgba(14, 34, 56, 0.07);

  /* ---- Motion ---- */
  --ease-out:   cubic-bezier(0.22, 0.61, 0.36, 1);   /* @kind other */
  --ease-in-out:cubic-bezier(0.65, 0, 0.35, 1);      /* @kind other */
  --ease-spring:cubic-bezier(0.34, 1.56, 0.64, 1);   /* @kind other */
  --dur-fast:   120ms;  /* @kind other */
  --dur-base:   200ms;  /* @kind other */
  --dur-slow:   360ms;  /* @kind other */

  /* ---- Z-index ---- */
  --z-base: 1;        /* @kind other */
  --z-sticky: 100;    /* @kind other */
  --z-overlay: 800;   /* @kind other */
  --z-modal: 900;     /* @kind other */
  --z-toast: 1000;    /* @kind other */
}