.comparison-section {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.comparison-page .comparison-section { margin-top: 0; border-top: 0; padding-block: 40px; }
.comparison-page .main-nav [aria-current="page"] { color: var(--accent); }

.comparison-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 24px;
  margin-bottom: 28px;
}

.comparison-heading :is(h1, h2) {
  font-size: 30px;
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: -0.8px;
}

.comparison-heading p { color: var(--muted); font-size: 14px; }
.comparison-viewer { min-width: 0; background: var(--background); }
.comparison-controls { min-width: 0; margin: 0; padding: 0; border: 0; }
.comparison-selections { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; }
.comparison-selection { min-width: 0; }
.comparison-selection label { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); }
.comparison-side { color: var(--accent); font-size: 14px; }

.comparison-selection select {
  width: 100%;
  min-height: 48px;
  margin-top: 8px;
  padding: 10px 32px 10px 12px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--hover);
  color: var(--foreground);
  font: inherit;
  font-size: clamp(14px, 1.7vw, 19px);
  text-overflow: ellipsis;
  cursor: pointer;
}

.comparison-parameters { margin-top: 3px; color: var(--muted); font-size: 12px; min-height: 18px; }
.comparison-toolbar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 4px 12px; padding-block: 16px 12px; }
.comparison-gesture-hint { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 12px; }

.comparison-viewer button {
  min-width: 44px;
  min-height: 44px;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: 3px;
  background: transparent;
  color: var(--foreground);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.comparison-viewer button:hover { background: var(--hover); border-color: var(--line); }
.comparison-viewer :disabled { cursor: default; opacity: 0.5; }
.comparison-viewer button[aria-pressed="true"] { color: var(--accent); border-color: var(--line); }
.comparison-viewer :is(button, select, [tabindex]):focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.comparison-viewer .comparison-divider:focus-visible { outline: none; }
.comparison-divider:focus-visible .comparison-grip { outline: 2px solid var(--accent); outline-offset: 3px; }
.comparison-viewer[data-pointer-focus="true"] :is(.comparison-stage, .comparison-divider):focus,
.comparison-viewer[data-pointer-focus="true"] .comparison-divider:focus .comparison-grip { outline: none; }
#comparison-zoom { min-width: 54px; text-align: center; color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }

.comparison-stage {
  --comparison-split: 50%;
  position: relative;
  width: 100%;
  height: clamp(280px, 60vw, 690px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--hover);
  isolation: isolate;
  touch-action: none;
  user-select: none;
  cursor: grab;
}

.comparison-stage.is-dragging { cursor: grabbing; }
.comparison-layer { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.comparison-layer-left { clip-path: inset(0 calc(100% - var(--comparison-split)) 0 0); }
.comparison-layer img { position: absolute; top: 0; left: 0; max-width: none; transform-origin: 0 0; user-select: none; pointer-events: none; }
.comparison-stage:not(.is-ready) .comparison-layer { visibility: hidden; }
.comparison-image-label { position: absolute; top: 14px; padding: 5px 9px; border-radius: 2px; background: var(--background); color: var(--foreground); font-size: 12px; pointer-events: none; }
.comparison-image-label-left { left: 14px; }
.comparison-image-label-right { right: 14px; }
.comparison-stage:not(.is-ready) .comparison-image-label { display: none; }

.comparison-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: clamp(22px, var(--comparison-split), calc(100% - 22px));
  width: 44px;
  transform: translateX(-50%);
  cursor: ew-resize;
  touch-action: none;
}

.comparison-divider::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--comparison-line-offset, 22px) - 1px);
  width: 2px;
  background: var(--foreground);
  box-shadow: 0 0 0 1px #17191666;
}

.comparison-grip { position: absolute; top: 50%; left: 50%; display: flex; align-items: center; justify-content: center; gap: 7px; width: 42px; height: 48px; transform: translate(-50%, -50%); border: 1px solid var(--foreground); border-radius: 24px; background: var(--background); color: var(--foreground); font-size: 22px; line-height: 1; }
.comparison-grip span { height: 15px; width: 1px; background: var(--line); }
.comparison-empty { position: absolute; inset: 0; display: grid; place-content: center; padding: 32px; text-align: center; color: var(--muted); font-size: 14px; line-height: 1.6; pointer-events: none; }
.comparison-feedback { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 12px; margin-top: 10px; min-height: 24px; color: var(--accent); font-size: 12px; line-height: 1.6; }
.comparison-help, .comparison-context { max-width: 85ch; color: var(--muted); font-size: 12px; line-height: 1.7; }
.comparison-help { margin-top: 8px; }
.comparison-context { margin-top: 10px; }

.comparison-viewer:fullscreen { overflow-y: auto; padding: 24px max(24px, calc((100vw - 1536px) / 2)); }
.comparison-viewer:fullscreen .comparison-stage { height: max(280px, calc(100dvh - 320px)); }
.comparison-viewer::backdrop { background: var(--background); }

@media (max-width: 820px) {
  .comparison-section { margin-top: 40px; }
  .comparison-heading :is(h1, h2) { font-size: 28px; }
  .comparison-selections { gap: 20px; }
}

@media (max-width: 600px) {
  .site-header { flex-wrap: wrap; padding-block: 12px; gap: 4px 16px; }
  .main-nav { flex-wrap: wrap; gap: 16px; }
  .comparison-section { margin-top: 32px; padding-top: 28px; }
  .comparison-heading { display: block; margin-bottom: 22px; }
  .comparison-heading :is(h1, h2) { font-size: 26px; letter-spacing: -0.6px; }
  .comparison-heading p { margin-top: 8px; font-size: 13px; }
  .comparison-selections { gap: 14px; }
  .comparison-selection select { padding-left: 8px; padding-right: 4px; font-size: 16px; }
  .comparison-parameters { font-size: 11px; }
  .comparison-toolbar { gap: 0; }
  .comparison-viewer button { padding-inline: 8px; }
  #comparison-zoom { min-width: 45px; }
  .comparison-stage { height: auto; aspect-ratio: 4 / 3; }
  .comparison-page .comparison-section { padding-block: 24px; }
  .comparison-heading { margin-bottom: 18px; }
  .comparison-gesture-hint { font-size: 11px; gap: 4px; }
  .comparison-viewer:fullscreen { padding: 16px; }
  .comparison-viewer:fullscreen .comparison-stage { height: max(280px, calc(100dvh - 350px)); }
}