/* ============================================================
   EduPro — Radii, shadows, motion, blur
   Professional, calm. Moderate rounding, soft cool-tinted shadows.
   ============================================================ */
:root {
  /* Corner radii */
  --radius-xs:   6px;
  --radius-sm:   8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-2xl: 32px;
  --radius-pill: 999px;

  /* Shadows — cool navy-tinted, subtle */
  --shadow-xs:  0 1px 2px rgba(15, 38, 71, 0.06);
  --shadow-sm:  0 1px 3px rgba(15, 38, 71, 0.08), 0 1px 2px rgba(15, 38, 71, 0.05);
  --shadow-md:  0 4px 12px rgba(15, 38, 71, 0.08), 0 2px 4px rgba(15, 38, 71, 0.05);
  --shadow-lg:  0 12px 28px rgba(15, 38, 71, 0.12), 0 4px 8px rgba(15, 38, 71, 0.06);
  --shadow-xl:  0 24px 56px rgba(15, 38, 71, 0.16), 0 8px 16px rgba(15, 38, 71, 0.08);
  --shadow-brand: 0 12px 28px rgba(27, 58, 107, 0.28);
  --shadow-accent: 0 10px 24px rgba(245, 158, 11, 0.30);

  /* Focus ring */
  --ring-focus: 0 0 0 3px rgba(59, 130, 246, 0.35);

  /* Motion */
  --ease-out:   cubic-bezier(0.22, 1, 0.36, 1);
  --ease-inout: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast:   120ms;
  --dur-base:   200ms;
  --dur-slow:   360ms;

  /* Blur (glass surfaces over imagery) */
  --blur-sm: 8px;
  --blur-md: 16px;
}