@charset "UTF-8";
:root {
  --color-paper: #f4f1e8;
  --color-paper-deep: #ece7d9;
  --color-ink: #1c1b18;
  --color-ink-soft: #6b665b;
  --color-line: #d9d3c3;
  --color-accent: #d8442a;
  --color-accent-deep: #b0331d;
  --color-mark: #e0a92e;
  --font-display: Inter, Noto Sans TC, sans-serif;
  --font-body: Inter, Noto Sans TC, sans-serif;
  --font-mono: Inter, Noto Sans TC, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

.tool-intro {
  max-width: 64ch;
  margin-block: 24px 40px;
  color: #6b665b;
}
.tool-intro strong {
  color: #1c1b18;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px;
  margin-bottom: 24px;
  background: #ece7d9;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
}

.control-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.control-label {
  flex: 0 0 auto;
  min-width: 8em;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #6b665b;
}

.scale-value {
  color: #d8442a;
  font-variant-numeric: tabular-nums;
}

.scale-slider {
  flex: 1;
  min-width: 180px;
  max-width: 360px;
  height: 4px;
  appearance: none;
  -webkit-appearance: none;
  background: #d9d3c3;
  border-radius: 2px;
  cursor: pointer;
}
.scale-slider::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #d8442a;
  border: 2px solid #f4f1e8;
  cursor: pointer;
}
.scale-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #d8442a;
  border: 2px solid #f4f1e8;
  cursor: pointer;
}

.colors-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.colors-chip {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
  padding: 4px 16px;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  color: #6b665b;
  background: #f4f1e8;
  cursor: pointer;
  transition: color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), border-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), background-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.colors-chip:hover {
  color: #1c1b18;
  border-color: #1c1b18;
}
.colors-chip.is-active {
  color: #f4f1e8;
  background: #d8442a;
  border-color: #d8442a;
}

.colors-note {
  font-size: 0.85em;
  opacity: 0.8;
}

.results-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.results-summary {
  font-size: 1rem;
  color: #6b665b;
}
.results-summary strong {
  color: #1c1b18;
}
.results-summary .text-accent {
  color: #d8442a;
}
.results-summary .text-warn {
  color: #e0a92e;
}

.results-actions {
  display: flex;
  gap: 8px;
}

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.compare-panel {
  margin: 0;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  background: #f4f1e8;
  overflow: hidden;
}

.compare-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 16px;
  background-color: #ece7d9;
  background-image: linear-gradient(45deg, #d9d3c3 25%, transparent 25%), linear-gradient(-45deg, #d9d3c3 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #d9d3c3 75%), linear-gradient(-45deg, transparent 75%, #d9d3c3 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.compare-img {
  max-width: 100%;
  max-height: 360px;
  image-rendering: pixelated;
  border-radius: 2px;
  box-shadow: 0 1px 4px rgba(28, 27, 24, 0.12);
}

.compare-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: var(--progress, 0%);
  background: #d8442a;
  transition: width 0.2s cubic-bezier(0.22, 0.61, 0.36, 1);
  opacity: 0;
}

.compare-panel.is-working .compare-stage::after {
  content: "處理中…";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: #6b665b;
  background: rgba(244, 241, 232, 0.72);
}
.compare-panel.is-working .compare-img {
  opacity: 0.4;
}
.compare-panel.is-working .compare-progress {
  opacity: 1;
}

.compare-cap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px;
  border-top: 1px solid #d9d3c3;
}

.compare-tag {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 8px;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  color: #6b665b;
}
.compare-tag.is-accent {
  color: #f4f1e8;
  background: #d8442a;
  border-color: #d8442a;
}

.compare-meta {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #6b665b;
  font-variant-numeric: tabular-nums;
}
.compare-meta strong {
  color: #1c1b18;
}

.dropzone {
  cursor: pointer;
}

@media (max-width: 640px) {
  .control-label {
    min-width: 100%;
  }
  .compare {
    grid-template-columns: 1fr;
  }
}