/* APTOS — Spacing, radius, shadow, motion, layout tokens */
:root {
  /* ---- Spacing (4px base) ---- */
  --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;

  /* ---- Radius ---- */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-2xl: 28px;
  --radius-app: 22%;  /* APTOS app-icon corner ratio */
  --radius-full: 9999px;

  /* ---- Border widths ---- */
  --border-width: 1px;
  --border-width-thick: 1.5px;

  /* ---- Shadows (cool slate-tinted, soft) ---- */
  --shadow-xs: 0 1px 2px rgba(20, 26, 36, 0.06);
  --shadow-sm: 0 1px 3px rgba(20, 26, 36, 0.08), 0 1px 2px rgba(20, 26, 36, 0.04);
  --shadow-md: 0 4px 12px rgba(20, 26, 36, 0.08), 0 2px 4px rgba(20, 26, 36, 0.05);
  --shadow-lg: 0 12px 28px rgba(20, 26, 36, 0.12), 0 4px 8px rgba(20, 26, 36, 0.06);
  --shadow-xl: 0 24px 56px rgba(20, 26, 36, 0.16), 0 8px 16px rgba(20, 26, 36, 0.07);
  --shadow-brand: 0 8px 24px rgba(255, 107, 27, 0.30);
  --shadow-inset: inset 0 1px 2px rgba(20, 26, 36, 0.06);

  /* ---- Motion ---- */
  --dur-fast: 120ms;  /* @kind other */
  --dur-base: 200ms;  /* @kind other */
  --dur-slow: 320ms;  /* @kind other */
  --ease-standard: cubic-bezier(0.2, 0, 0.1, 1);   /* @kind other */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);       /* @kind other */
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);   /* @kind other */

  /* ---- Layout ---- */
  --container-max: 1200px;
  --sidebar-width: 248px;
  --header-height: 64px;
}