/* ── Preloader ── */
#mb-preloader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: #060606;
  display: flex;
  align-items: center;
  justify-content: center;
}
@keyframes mbHeartbeat {
  0%   { transform: scale(0.92); opacity: 0.7; }
  50%  { transform: scale(1.05); opacity: 1;   }
  100% { transform: scale(0.92); opacity: 0.7; }
}
#mb-preloader img {
  width: 64px;
  height: 64px;
  animation: mbHeartbeat 1.6s ease-in-out infinite;
}

/* ── body overflow:hidden hasta window.load ── */
body.preloading { overflow: hidden; }