.loading-circle {
  width: 5rem;
  height: 5rem;
  border: 4px solid rgba(0, 0, 0, 0.2);
  border-top-color: #000000;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  display: inline-block;
  margin-left: 2rem;
}

.loading-circle--white {
  border-color: rgba(255, 255, 255, 0.2);
  border-top-color: #ffffff;
}

.loading-circle--btn {
  width: 2rem;
  height: 2rem;
  margin-left: 0;
  margin-right: 1rem;
}

/* Анимация вращения */
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}