/* ============================================================
   RedKnight — Effects: radii, borders, shadows, motion
   Aesthetic: hard-edged, structural, precise. Corners stay
   SMALL (2–6px) — this is armor, not a wellness app. Shadows
   are tight and low-spread; elevation reads as crisp, not soft.
   ============================================================ */
:root {
  /* Radii — deliberately restrained */
  --radius-none: 0;
  --radius-sm: 2px;
  --radius-md: 4px;     /* default control radius */
  --radius-lg: 6px;     /* cards / panels */
  --radius-pill: 999px; /* status chips only */

  /* Border widths */
  --bw-hairline: 1px; /* @kind other */
  --bw-medium: 2px;   /* @kind other */
  --bw-heavy: 3px;     /* @kind other */

  /* Shadows — tight, cool-toned, low spread */
  --shadow-sm: 0 1px 2px rgba(5, 7, 8, 0.08);
  --shadow-md: 0 2px 6px rgba(5, 7, 8, 0.10), 0 1px 2px rgba(5, 7, 8, 0.06);
  --shadow-lg: 0 8px 24px rgba(5, 7, 8, 0.14), 0 2px 6px rgba(5, 7, 8, 0.08);
  --shadow-focus: 0 0 0 3px rgba(168, 40, 50, 0.35);

  /* The signature: a 3px brand-red top rule for raised panels */
  --edge-brand: inset 0 3px 0 var(--rk-red-600);

  /* Motion — quick, mechanical, no bounce */
  --ease-standard: cubic-bezier(0.2, 0, 0.2, 1); /* @kind other */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);      /* @kind other */
  --dur-fast: 120ms;   /* @kind other */
  --dur-normal: 200ms; /* @kind other */
  --dur-slow: 320ms;   /* @kind other */
}