/* Loading / processing overlay – spinner + message + progress bar (indeterminate or determinate).
   Optional progress % / time left meta line and cancel button.
   Theme: body.theme-dark vs default (light). */

.conversion-loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(var(--bg-rgb, 15, 23, 42), 0.92);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
  border-radius: var(--radius-large);
  gap: 1.5rem;
  padding: 1.5rem;
  animation: overlayFadeIn 0.3s ease-out;
  overflow: visible;
}

@keyframes overlayFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.conversion-loading-spinner {
  width: 80px;
  height: 80px;
  position: relative;
  flex-shrink: 0;
  overflow: visible;
}

.conversion-loading-spinner::before,
.conversion-loading-spinner::after {
  content: '';
  position: absolute;
  border-radius: 50%;
}

.conversion-loading-spinner::before {
  width: 100%;
  height: 100%;
  border: 4px solid rgba(102, 126, 234, 0.2);
  border-top-color: #667eea;
  animation: spinnerRotate 1s linear infinite;
}

.conversion-loading-spinner::after {
  width: 60%;
  height: 60%;
  top: 20%;
  left: 20%;
  border: 3px solid rgba(118, 75, 226, 0.2);
  border-bottom-color: #764be2;
  animation: spinnerRotate 0.8s linear infinite reverse;
}

@keyframes spinnerRotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.conversion-loading-text {
  color: var(--heading-color);
  font-size: 18px;
  font-weight: 600;
  text-align: center;
}

.conversion-loading-subtext {
  color: var(--muted-text);
  font-size: 14px;
  text-align: center;
  max-width: 280px;
}

.conversion-loading-meta {
  font-size: 12px;
  opacity: 0.85;
  color: var(--muted-text);
  text-align: center;
}

.conversion-loading-meta:empty {
  display: none;
}

.conversion-loading-progress {
  position: relative;
  width: 100%;
  max-width: 280px;
  height: 6px;
  background: rgba(102, 126, 234, 0.2);
  border-radius: 3px;
  overflow: hidden;
}

.conversion-loading-progress-bar {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, #667eea, #764be2);
}

.conversion-loading-progress-bar--indeterminate {
  width: 40%;
  animation: progressIndeterminateSlide 1.2s ease-in-out infinite;
}

@keyframes progressIndeterminateSlide {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(350%);
  }
}

.conversion-loading-progress-bar--determinate {
  width: var(--conversion-loading-progress-pct, 0%);
  animation: none;
  transition: width 0.2s ease-out;
}

.conversion-loading-cancel {
  display: none;
  margin-top: 0.5rem;
  padding: 0.35rem 0.75rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 4px;
  color: inherit;
  font-size: 13px;
  cursor: pointer;
}

.conversion-loading-cancel:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.7);
}

/* Container must be positioned for overlay */
.card {
  position: relative;
}

/* Dark theme */
body.theme-dark .conversion-loading-overlay {
  background: rgba(10, 10, 20, 0.95);
}

body.theme-dark .conversion-loading-text {
  color: #f0f0f0;
}

body.theme-dark .conversion-loading-subtext {
  color: #a0a0a0;
}

body.theme-dark .conversion-loading-meta {
  color: #a0a0a0;
}

body.theme-dark .conversion-loading-cancel {
  border-color: rgba(255, 255, 255, 0.5);
}

body.theme-dark .conversion-loading-cancel:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.8);
}

/* Light theme */
body:not(.theme-dark) .conversion-loading-overlay {
  background: rgba(248, 250, 252, 0.95);
  box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.35);
}

body:not(.theme-dark) .conversion-loading-text {
  color: #0f172a;
}

body:not(.theme-dark) .conversion-loading-subtext {
  color: #475569;
}

body:not(.theme-dark) .conversion-loading-meta {
  color: #475569;
}

body:not(.theme-dark) .conversion-loading-spinner::before {
  border-color: rgba(37, 99, 235, 0.18);
  border-top-color: #2563eb;
}

body:not(.theme-dark) .conversion-loading-spinner::after {
  border-color: rgba(30, 64, 175, 0.18);
  border-bottom-color: #1e40af;
}

body:not(.theme-dark) .conversion-loading-progress {
  background: rgba(37, 99, 235, 0.18);
}

body:not(.theme-dark) .conversion-loading-progress-bar {
  background: linear-gradient(90deg, #2563eb, #4f46e5);
}

body:not(.theme-dark) .conversion-loading-cancel {
  border-color: rgba(0, 0, 0, 0.2);
  color: #0f172a;
}

body:not(.theme-dark) .conversion-loading-cancel:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: #2563eb;
  color: #2563eb;
}