/* Full-screen upload/convert spinner. Dark + blue glow. */

.upload-spinner {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  padding: 16px;
}

.upload-spinner[hidden] {
  display: none;
}

.upload-spinner__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(2px);
}

.upload-spinner__panel {
  position: relative;
  width: min(360px, 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 26px 24px 22px;
  border-radius: 8px;
  border: 1px solid rgba(59, 130, 246, 0.45);
  background: #06070d;
  box-shadow:
    0 0 0 1px rgba(59, 130, 246, 0.12),
    0 0 32px rgba(59, 130, 246, 0.22),
    0 18px 48px rgba(0, 0, 0, 0.7);
  text-align: center;
}

.upload-spinner__ring {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 3px solid rgba(59, 130, 246, 0.18);
  border-top-color: #3b82f6;
  box-shadow:
    0 0 14px rgba(59, 130, 246, 0.45),
    inset 0 0 8px rgba(59, 130, 246, 0.2);
  animation: upload-spinner-rot 0.85s linear infinite;
}

@keyframes upload-spinner-rot {
  to {
    transform: rotate(360deg);
  }
}

.upload-spinner__title {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #60a5fa;
  text-shadow: 0 0 14px rgba(59, 130, 246, 0.4);
}

.upload-spinner__hint {
  margin: 0;
  font-size: 12px;
  line-height: 1.45;
  color: #9ca3af;
}

@media (prefers-reduced-motion: reduce) {
  .upload-spinner__ring {
    animation-duration: 2.4s;
  }
}