Spinner State CSS Button

.btn-spinner-state {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border: 1px solid #2a3140;
  border-radius: 10px;
  background: #161b26;
  color: #d7dde8;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.btn-spinner-state::before {
  content: "";
  box-sizing: border-box;
  flex: none;
  width: 0;
  height: 0;
  margin-right: 0;
  border: 0 solid rgba(56, 189, 248, 0.25);
  border-top-color: #38bdf8;
  border-radius: 50%;
  opacity: 0;
  transition: width 0.25s ease, height 0.25s ease, margin-right 0.25s ease, border-width 0.25s ease, opacity 0.2s ease;
}
.btn-spinner-state:hover {
  background: #1b2231;
  border-color: #38445a;
}
.btn-spinner-state:hover::before {
  width: 13px;
  height: 13px;
  margin-right: 9px;
  border-width: 2px;
  opacity: 1;
  animation: btn-spinner-state-spin 0.7s linear infinite;
}
.btn-spinner-state:active {
  background: #121722;
}
@keyframes btn-spinner-state-spin {
  to {
    transform: rotate(360deg);
  }
}
.btn-spinner-state:focus-visible {
  outline: 2px solid #2a3140;
  outline-offset: 3px;
}