/* Loading button helpers */
button[data-loading="true"] .btn-label {
  display: none;
}
button .btn-spinner {
  display: none;
}
button[data-loading="true"] .btn-spinner {
  display: inline-flex;
}

/* Optional: subtle press effect helper */
.btn-anim {
  transition: transform .12s ease, box-shadow .2s ease;
}