/* MXD Engenharia — Spacing, radius, shadow, motion, layout
   Restrained, technical: small radii, hairline borders, low-spread cool shadows. */

:root {
  /* ---- Spacing (4px base) ---- */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 128px;

  /* ---- Radius (technical, tight) ---- */
  --r-xs: 2px;
  --r-sm: 4px;
  --r-md: 6px;   /* default cards / buttons */
  --r-lg: 10px;  /* large panels */
  --r-pill: 999px;  /* small tags only */

  /* ---- Shadows (subtle, cool-tinted) ---- */
  --shadow-xs: 0 1px 2px rgba(14, 40, 64, 0.06);
  --shadow-sm: 0 1px 3px rgba(14, 40, 64, 0.08), 0 1px 2px rgba(14, 40, 64, 0.04);
  --shadow-md: 0 4px 14px rgba(14, 40, 64, 0.08);
  --shadow-lg: 0 12px 32px rgba(14, 40, 64, 0.12);
  --shadow-focus: 0 0 0 3px rgba(42, 108, 166, 0.28);

  /* ---- Motion (subtle, restrained — Apple/Aesop) ---- */
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1); /* @kind other */
  --ease-in-out: cubic-bezier(0.45, 0, 0.15, 1); /* @kind other */
  --dur-fast: 140ms; /* @kind other */
  --dur-base: 240ms; /* @kind other */
  --dur-slow: 420ms; /* @kind other */

  /* ---- Layout ---- */
  --container: 1200px;        /* @kind other */
  --container-narrow: 760px;  /* @kind other */
  --gutter: 24px;             /* @kind other */
}