/* ============================================================
   SPACING, RADII, SHADOWS, LAYOUT — Yan Trotta Design System
   Architectural feel: 4px base grid, restrained radii,
   soft directional shadows. Sharp by default; never bubbly.
   ============================================================ */
:root {
  /* ---- Spacing (4px base grid) ---- */
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  /* ---- Radii (restrained / architectural) ---- */
  --radius-none: 0px;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-xl: 14px;
  --radius-full: 999px;

  /* ---- Border widths ---- */
  --border-thin: 1px;
  --border-thick: 2px;
  --border-accent: 3px;

  /* ---- Shadows (soft, low, directional) ---- */
  --shadow-xs: 0 1px 2px rgba(21, 39, 52, 0.06);
  --shadow-sm: 0 2px 6px rgba(21, 39, 52, 0.08);
  --shadow-md: 0 8px 24px rgba(21, 39, 52, 0.10);
  --shadow-lg: 0 18px 48px rgba(21, 39, 52, 0.14);
  --shadow-focus: 0 0 0 3px rgba(233, 134, 55, 0.35);

  /* ---- Layout ---- */
  --container-sm: 640px;
  --container-md: 880px;
  --container-lg: 1120px;
  --container-xl: 1280px;
  --gutter: var(--space-6);

  /* ---- Motion ---- */
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1); /* @kind other */
  --ease-in-out: cubic-bezier(0.65, 0.05, 0.36, 1); /* @kind other */
  --dur-fast: 140ms; /* @kind other */
  --dur-base: 220ms; /* @kind other */
  --dur-slow: 420ms; /* @kind other */
}