/* Stacking container: both children occupy the same grid cell */
.converter-stack {
  display: grid;
}
.converter-stack > * {
  grid-area: 1 / 1;
}
.converter-stack > .hidden {
  display: none;
}

.upload-zone {
  border: 2px dashed var(--tl-card-border);
  border-radius: 1rem;
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--tl-card-bg);
  cursor: pointer;
  transition:
    border-color 160ms ease,
    background-color 160ms ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 240px;
}
.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 5%, transparent);
}
.upload-icon {
  font-size: 2rem;
}

.workspace-area {
  background: var(--tl-card-bg);
  border: 1px solid var(--tl-card-border);
  border-radius: 0.5rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.workspace-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--tl-card-border);
  padding-bottom: 1rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.file-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}
.file-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
}
.file-details {
  min-width: 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
}
.file-details p {
  margin: 0;
}

.comparison-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.slider-wrapper {
  position: relative;
  width: 100%;
  height: clamp(240px, 40vw, 400px);
  border-radius: 0.625rem;
  overflow: hidden;
  border: 1px solid var(--tl-card-border);
  background: var(--background);
  user-select: none;
}
@media (max-width: 768px) {
  .slider-wrapper {
    height: 260px;
  }
}
.slider-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}
.before-image {
  z-index: 1;
  background-image:
    radial-gradient(rgba(0, 0, 0, 0.05) 20%, transparent 20%),
    radial-gradient(rgba(0, 0, 0, 0.05) 20%, transparent 20%);
  background-size: 10px 10px;
  background-position:
    0 0,
    5px 5px;
}
.after-image {
  z-index: 2;
  clip-path: inset(0 0 0 var(--clip-position, 50%));
}
.slider-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--clip-position, 50%);
  width: 2px;
  background: white;
  pointer-events: none;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  z-index: 10;
  transform: translateX(-50%);
}
.slider-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--tl-card-border);
  color: var(--foreground);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
}
.slider-button::before,
.slider-button::after {
  content: "";
  position: absolute;
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}
.slider-button::before {
  border-right: 6px solid var(--tl-text-secondary);
  left: 9px;
}
.slider-button::after {
  border-left: 6px solid var(--tl-text-secondary);
  right: 9px;
}
.comparison-slider-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  z-index: 20;
  margin: 0;
}
.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--tl-text-secondary);
  padding: 0 0.5rem;
}

.workspace-controls-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1.25rem;
  margin-top: 0.25rem;
}
@media (max-width: 900px) {
  .workspace-controls-grid {
    grid-template-columns: 1fr;
  }
}
.control-box {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.control-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
}
.control-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 160px;
}
.control-field.flex-grow {
  flex-grow: 1;
}
.control-field label {
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--tl-text-secondary);
}
.control-field select,
.control-field input[type="range"] {
  padding: 0.55rem;
  border-radius: 0.625rem;
  border: 1px solid var(--tl-card-border);
  background: var(--background);
  color: var(--foreground);
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease;
}
.control-field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent);
}
.btn-action {
  background: var(--accent);
  color: var(--background);
  border: none;
  padding: 0.65rem 1.25rem;
  border-radius: 0.625rem;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition:
    opacity 0.2s,
    transform 0.1s;
  text-align: center;
  flex-shrink: 0;
}
.btn-action:hover {
  opacity: 0.9;
}
.btn-action:active {
  transform: scale(0.98);
}
.btn-action:disabled {
  background: var(--tl-card-border);
  color: var(--tl-text-tertiary);
  cursor: not-allowed;
}

.stats-box {
  background: var(--tl-inset-bg);
  border: 1px dashed var(--tl-card-border);
  border-radius: 0.625rem;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
}
.stats-content {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.stats-details {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.85rem;
}
.stat-item .label {
  color: var(--tl-text-tertiary);
  font-size: 0.75rem;
}
.btn-success {
  background: var(--accent);
  color: var(--background);
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 0.625rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
  width: 100%;
  display: inline-block;
  text-decoration: none;
  text-align: center;
}
.btn-success:hover {
  opacity: 0.9;
}
.btn-secondary {
  background: var(--background);
  color: var(--foreground);
  border: 1px solid var(--tl-card-border);
  padding: 0.5rem 1rem;
  border-radius: 0.625rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}
.btn-secondary:hover {
  background: var(--tl-card-bg);
}

.status-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: color-mix(in srgb, var(--accent) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 15%, transparent);
  border-radius: 0.625rem;
  padding: 0.65rem 0.9rem;
  font-size: 0.8rem;
  color: var(--tl-text-secondary);
}
.status-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.7;
  flex-shrink: 0;
}
@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 40%, transparent);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent) 0%, transparent);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 0%, transparent);
  }
}
.stats-box :global(.saving-badge) {
  color: var(--tl-text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  margin-left: 0.4rem;
  display: inline-block;
}