/* ===== Spinner ===== */
.spinner-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, .75);
  display: none;
  /* .show で表示 */
  place-items: center;
  z-index: 2000;
}

.spinner-overlay.show {
  display: grid;
}

.spinner {
  width: 44px;
  height: 44px;
  border: 3px solid #cbd5e1;
  border-top-color: var(--accent);
  /* #2F7AD9 を想定 */
  border-radius: 50%;
  animation: spin .8s linear infinite;
}

.spinner-text {
  margin-top: 12px;
  color: #333;
  font-weight: 700;
}

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

/* スピナー表示中は背面スクロールを止める */
body.sending {
  overflow: hidden;
}