@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Basic spin utility */
.animate-spin {
  animation-name: spin;
  animation-duration: 1s;       /* এক রাউন্ডের সময় (ডিফল্ট) */
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  transform-origin: center;
  backface-visibility: hidden;  /* smoother on some browsers */
}