/* ============================================================
   AB Industrie Service — Shadows, elevation, motion, gradients
   The brand reads heavy & physical: shadows are firm and grounded,
   not soft floaty blurs. Motion is brisk and mechanical — short
   durations, confident easing, no bounce.
   ============================================================ */
:root {
  /* ---- Elevation shadows ---- */
  --shadow-xs: 0 1px 2px rgba(20,23,24,0.08);
  --shadow-sm: 0 2px 6px rgba(20,23,24,0.10);
  --shadow-md: 0 6px 18px rgba(20,23,24,0.12);
  --shadow-lg: 0 16px 40px rgba(20,23,24,0.18);
  --shadow-xl: 0 28px 64px rgba(14,14,15,0.28);

  /* Brand-tinted shadow for primary CTAs */
  --shadow-brand: 0 10px 24px rgba(168,25,43,0.30);

  /* Inset hairline used on dark photo panels */
  --shadow-inset-line: inset 0 0 0 1px rgba(255,255,255,0.08);

  /* ---- Gradients ---- */
  --grad-brand: linear-gradient(135deg, var(--red-500) 0%, var(--red-700) 100%);
  --grad-ink: linear-gradient(160deg, var(--ink-700) 0%, var(--ink-900) 100%);
  --grad-steel: linear-gradient(180deg, var(--steel-50) 0%, var(--steel-100) 100%);
  /* Photo legibility scrim (bottom-up) */
  --scrim-bottom: linear-gradient(180deg, rgba(14,14,15,0) 0%, rgba(14,14,15,0.78) 100%); /* @kind other */
  /* Diagonal red slash motif (echoes the wordmark accent bar) */
  --grad-slash: linear-gradient(100deg, var(--red-700) 0%, var(--red-600) 60%, var(--red-500) 100%);

  /* ---- Motion ---- */
  --ease-out: cubic-bezier(0.16, 0.84, 0.44, 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 */

  /* ---- Misc ---- */
  --ring-focus: 0 0 0 3px rgba(194,31,51,0.40);
}