/* ============================================================
   BlueNorth — Spacing, radii, shadows, motion, layout
   ============================================================ */

: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 — measured, slightly soft (not pill-everything) */
  --radius-xs:   4px;
  --radius-sm:   6px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-2xl:  24px;
  --radius-pill: 999px;
  --radius-card: var(--radius-lg);

  /* Borders */
  --border-width: 1px;
  --border-width-strong: 1.5px;

  /* Shadows — cool, low-spread, navy-tinted (never warm/black) */
  --shadow-xs:  0 1px 2px rgba(22, 29, 43, 0.06);
  --shadow-sm:  0 1px 3px rgba(22, 29, 43, 0.08), 0 1px 2px rgba(22, 29, 43, 0.05);
  --shadow-md:  0 4px 12px rgba(22, 29, 43, 0.08), 0 2px 4px rgba(22, 29, 43, 0.05);
  --shadow-lg:  0 12px 28px rgba(22, 29, 43, 0.12), 0 4px 8px rgba(22, 29, 43, 0.06);
  --shadow-xl:  0 24px 48px rgba(14, 26, 51, 0.16);
  --shadow-focus: 0 0 0 3px var(--focus-ring);
  --shadow-inset: inset 0 1px 2px rgba(22, 29, 43, 0.06);

  /* Motion — quick, confident, no bounce */
  --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:       cubic-bezier(0.4, 0, 1, 1); /* @kind other */
  --duration-fast:   120ms; /* @kind other */
  --duration-normal: 200ms; /* @kind other */
  --duration-slow:   320ms; /* @kind other */

  /* Layout */
  --container-max: 1200px;
  --container-wide: 1440px;
  --sidebar-width: 248px;
  --topbar-height: 60px;
}