.comparison-section {
  padding: 64px 0;
  scroll-margin-top: 74px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.comparison-viewer {
  --comparison-position: 50%;
  max-width: 960px;
  margin: 0 auto;
}

.comparison-title {
  margin: 0 0 26px;
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  font-weight: 750;
  line-height: 1.12;
  letter-spacing: -0.035em;
  text-align: center;
}

.comparison-stage {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--cream);
  cursor: ew-resize;
  touch-action: pan-y;
  user-select: none;
}

.comparison-layer {
  position: absolute;
  inset: 0;
  background: var(--cream);
  pointer-events: none;
}

.comparison-layer img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: contain;
}

.comparison-layer img[hidden] { display: none; }
.comparison-after { clip-path: inset(0 0 0 var(--comparison-position)); }

.comparison-panorama {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: grab;
}
.comparison-panorama[hidden], .comparison-notice[hidden] { display: none; }
.comparison-panorama:active { cursor: grabbing; }
.comparison-panorama:focus-visible { outline: 3px solid #67c5db; outline-offset: -4px; }
.comparison-stage[data-mode="panorama"] { cursor: grab; }
.comparison-notice {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  margin: 0;
  background: var(--cream);
  color: var(--muted);
  text-align: center;
}

.comparison-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--comparison-position);
  width: 2px;
  transform: translateX(-50%);
  background: var(--accent);
  pointer-events: none;
}

.comparison-slider {
  display: block;
  width: calc(100% - 24px);
  height: 36px;
  margin: 15px auto 2px;
  padding: 0;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  cursor: ew-resize;
}

.comparison-slider::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 4px;
  background: #d6c9bd;
}
.comparison-slider::-moz-range-track {
  height: 4px;
  border-radius: 4px;
  background: #d6c9bd;
}
.comparison-slider::-webkit-slider-thumb {
  width: 18px;
  height: 24px;
  margin-top: -10px;
  border: 3px solid var(--paper);
  border-radius: 8px;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
  appearance: none;
  -webkit-appearance: none;
}
.comparison-slider::-moz-range-thumb {
  width: 12px;
  height: 18px;
  border: 3px solid var(--paper);
  border-radius: 8px;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.comparison-navigation {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 18px;
}
.comparison-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--accent-dark);
  background: transparent;
  cursor: pointer;
}
.comparison-arrow:hover { background: var(--cream); border-color: var(--accent); }
.comparison-arrow:active { background: #eee2d7; }
.comparison-arrow:disabled { opacity: 0.4; cursor: default; }
.comparison-arrow:focus-visible,
.comparison-slider:focus-visible { outline: 3px solid #67c5db; outline-offset: 4px; }

.comparison-caption {
  padding: 22px 26px;
  border: 1px solid var(--line);
  border-radius: 14px;
}
.comparison-caption p { margin: 0; color: var(--muted); font-size: 1rem; }

.comparison-screen-reader {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 640px) {
  .comparison-section { padding: 36px 0; scroll-margin-top: 100px; }
  .comparison-stage { border-radius: 12px; }
  .comparison-caption { padding: 18px 20px; }
  .comparison-title { margin-bottom: 20px; }
}