/* ============================================================
   EBTHub — Spacing, radius, border, shadow, motion
   The system is rectilinear and structural — squared corners,
   hairline rules, the three-bar divider. Almost no rounding.
   ============================================================ */
:root {
  /* ---- Spacing (4px base) ---- */
  --space-0:  0;
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  24px;
  --space-6:  32px;
  --space-7:  48px;
  --space-8:  64px;
  --space-9:  96px;
  --space-10: 128px;

  /* ---- Radius — sharp by default. The brand is built from bars
          and blocks; rounding is the exception, not the rule. ---- */
  --radius-none: 0;
  --radius-xs:   2px;
  --radius-sm:   4px;
  --radius-md:   8px;   /* max for most UI */
  --radius-pill: 999px; /* tags / status dots only */

  /* ---- Borders ---- */
  --border-width: 1px;
  --border-width-strong: 2px;

  /* ---- The three-bar motif (divider / brand mark) ---- */
  --bar-height: 10px;
  --bar-gap: 4px;
  --bar-width: 64px;

  /* ---- Elevation. Dark UI → shadows are deep & subtle; glow
          (orange/blue) is used sparingly for emphasis. ---- */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.45);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.55);
  --glow-orange: 0 0 0 1px rgba(255,140,3,0.4), 0 0 24px rgba(255,140,3,0.25);
  --glow-blue:   0 0 0 1px rgba(29,56,220,0.5), 0 0 28px rgba(29,56,220,0.3);

  /* ---- Layout ---- */
  --container-max: 1200px;
  --container-pad: var(--space-6);

  /* ---- Motion — decisive, no bounce. "Decide fast, build fast." ---- */
  --ease-out: cubic-bezier(0.2, 0.7, 0.2, 1); /* @kind other */
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1); /* @kind other */
  --dur-fast: 120ms; /* @kind other */
  --dur-base: 200ms; /* @kind other */
  --dur-slow: 360ms; /* @kind other */
}