/* ============================================================
   ARON · Effects — radii, borders, shadows, blur, motion
   Sleek = crisp small radii, low-spread soft shadows, fast
   confident easing. No heavy drop-shadows, no bounce.
   ============================================================ */

:root {
  /* Corner radii — restrained, slightly squared (engineered feel) */
  --radius-xs:   4px;
  --radius-sm:   6px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-2xl:  24px;
  --radius-pill: 999px;

  /* Border widths */
  --border-thin:    1px;   /* @kind spacing */
  --border-regular: 1.5px; /* @kind spacing */
  --border-thick:   2px;   /* @kind spacing */

  /* Shadows — cool, low-spread, layered */
  --shadow-xs:  0 1px 2px rgba(26, 26, 26, 0.06);
  --shadow-sm:  0 1px 3px rgba(26, 26, 26, 0.08), 0 1px 2px rgba(26, 26, 26, 0.04);
  --shadow-md:  0 4px 12px rgba(26, 26, 26, 0.08), 0 2px 4px rgba(26, 26, 26, 0.04);
  --shadow-lg:  0 12px 32px rgba(26, 26, 26, 0.12), 0 4px 8px rgba(26, 26, 26, 0.05);
  --shadow-xl:  0 24px 56px rgba(26, 26, 26, 0.16), 0 8px 16px rgba(26, 26, 26, 0.06);

  /* Focus ring */
  --ring-width: 3px; /* @kind spacing */
  --ring-color: rgba(192, 57, 43, 0.32); /* @kind color */
  --ring: 0 0 0 var(--ring-width) var(--ring-color); /* @kind shadow */

  /* Inner / inset */
  --shadow-inset: inset 0 1px 2px rgba(26, 26, 26, 0.06);

  /* Blur (frosted overlays, sticky bars) */
  --blur-sm: 8px;  /* @kind other */
  --blur-md: 16px; /* @kind other */
  --blur-lg: 28px; /* @kind other */

  /* Motion — fast, confident, no bounce */
  --ease-standard: cubic-bezier(0.2, 0, 0, 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 */
}