/* Prism Site Compare — beta v2
   Dark, focused comparison surface. No remote fonts or assets. */
:root {
  color-scheme: dark;
  --page: #0e1012;
  --panel: #15181b;
  --panel-raised: #1b1e22;
  --panel-deep: #101214;
  --line: #30353a;
  --line-strong: #444a50;
  --text: #f0f1f2;
  --muted: #a3a8ae;
  --quiet: #777e85;
  --accent: #ef927c;
  --accent-ink: #241411;
  --radius: 12px;
  --radius-small: 8px;
  --focus-ring: #ffb29e;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--page);
  color: var(--text);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
  overflow-x: clip;
}

body {
  min-width: 0;
  background: var(--page);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button {
  cursor: pointer;
  touch-action: manipulation;
}

button:disabled,
input:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}

#appShell {
  width: 100%;
  max-width: 1600px;
  min-width: 0;
  margin-inline: auto;
  padding: clamp(18px, 3.2vw, 44px);
}

#appShell h1 {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.8rem, 3.3vw, 2.55rem);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

#appShell h2,
#appShell h3 {
  color: var(--text);
  font-weight: 600;
  letter-spacing: -0.02em;
}

#appShell p {
  color: var(--muted);
}

#appShell a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

/* Local file selection */
#beforeDropZone,
#afterDropZone {
  display: flex;
  min-width: 0;
  min-height: 142px;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  padding: 18px 20px;
  overflow-wrap: anywhere;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
  transition: border-color 140ms ease, background-color 140ms ease;
}

#beforeDropZone:hover,
#afterDropZone:hover,
#beforeDropZone:focus-within,
#afterDropZone:focus-within,
#beforeDropZone[data-dragover="true"],
#afterDropZone[data-dragover="true"],
#beforeDropZone.is-dragover,
#afterDropZone.is-dragover {
  border-color: var(--accent);
  background: #1b1c1d;
}

#beforeDropZone :where(p, small),
#afterDropZone :where(p, small) {
  margin: 0;
  color: var(--muted);
}

input[type="file"] {
  display: block;
  max-width: 100%;
  min-width: 0;
  color: var(--muted);
  font-size: 0.875rem;
}

input[type="file"]::file-selector-button {
  min-height: 40px;
  margin-inline-end: 10px;
  padding: 8px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-small);
  background: var(--panel-raised);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

/* The comparison remains the primary surface in every state. */
#comparisonArea {
  min-width: 0;
  margin-block-start: clamp(22px, 3vw, 36px);
  padding: clamp(12px, 2vw, 22px);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 2px);
  background: var(--panel);
  box-shadow: 0 14px 36px rgb(0 0 0 / 18%);
}

#emptyState {
  display: grid;
  min-width: 0;
  min-height: clamp(280px, 42vw, 560px);
  align-content: center;
  justify-items: center;
  gap: 10px;
  padding: clamp(24px, 5vw, 56px);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: var(--panel-deep);
  text-align: center;
}

#emptyState > :first-child {
  margin-block-start: 0;
}

#emptyState > :last-child {
  margin-block-end: 0;
}

#emptyState :where(h2, h3) {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
}

#emptyState :where(p) {
  max-width: 42ch;
  margin: 0;
  color: var(--muted);
}

#compareStage {
  position: relative;
  display: grid;
  width: 100%;
  min-width: 0;
  min-height: 240px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--line-strong);
}

#beforeView,
#afterView {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 0;
  aspect-ratio: 16 / 10;
  place-items: center;
  overflow: hidden;
  background: #111315;
}

#beforeView::before,
#afterView::before {
  position: absolute;
  z-index: 2;
  top: 12px;
  left: 12px;
  max-width: calc(100% - 24px);
  padding: 4px 9px;
  overflow: hidden;
  border: 1px solid rgb(255 255 255 / 12%);
  border-radius: 999px;
  background: #202327;
  color: var(--text);
  content: "До";
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
}

#afterView::before {
  content: "После";
  border-color: rgb(239 146 124 / 48%);
  background: #30211d;
  color: #ffd0c2;
}

#beforeImage,
#afterImage {
  display: block;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  object-fit: contain;
  object-position: center;
}

#compareStage[data-mode="side"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

#compareStage[data-mode="overlay"] {
  display: block;
  min-height: 0;
  aspect-ratio: 16 / 10;
  background: #111315;
}

#compareStage[data-mode="overlay"] #beforeView,
#compareStage[data-mode="overlay"] #afterView {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
}

#compareStage[data-mode="overlay"] #beforeView {
  z-index: 0;
}

#compareStage[data-mode="overlay"] #afterView {
  z-index: 1;
  clip-path: inset(0 calc(100% - var(--wipe-position,50%)) 0 0);
}

#compareStage[data-mode="overlay"]::after {
  position: absolute;
  z-index: 3;
  inset-block: 0;
  left: var(--wipe-position, 50%);
  width: 2px;
  background: var(--accent);
  content: "";
  pointer-events: none;
  transform: translateX(-50%);
}

#compareStage[data-mode="blink"] {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: #111315;
}

#compareStage[data-mode="blink"] #beforeView,
#compareStage[data-mode="blink"] #afterView {
  grid-area: 1 / 1;
  aspect-ratio: 16 / 10;
}

#compareStage[data-mode="blink"] #afterView {
  visibility: hidden;
  opacity: 0;
}

#compareStage[data-mode="blink"][data-blink-show="before"] #beforeView,
#compareStage[data-mode="blink"][data-blink-show="after"] #afterView {
  visibility: visible;
  opacity: 1;
}

#compareStage[data-mode="blink"][data-blink-show="before"] #afterView,
#compareStage[data-mode="blink"][data-blink-show="after"] #beforeView {
  visibility: hidden;
  opacity: 0;
}

/* Mode switcher and image-position controls */
button,
[role="button"] {
  min-height: 44px;
  padding: 9px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-small);
  background: var(--panel-raised);
  color: var(--text);
  font-weight: 550;
  line-height: 1.25;
  transition: border-color 140ms ease, background-color 140ms ease, color 140ms ease;
}

button:hover:not(:disabled),
[role="button"]:hover {
  border-color: #626970;
  background: #24282d;
}

button[data-mode],
[role="tab"][data-mode],
[role="button"][data-mode] {
  min-width: 76px;
}

button[data-mode][aria-pressed="true"],
button[data-mode][aria-selected="true"],
[role="tab"][data-mode][aria-selected="true"],
[role="button"][data-mode][aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

#appShell:has(#compareStage[data-mode="side"]) button[data-mode="side"],
#appShell:has(#compareStage[data-mode="overlay"]) button[data-mode="overlay"],
#appShell:has(#compareStage[data-mode="blink"]) button[data-mode="blink"] {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

#demoButton {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 650;
}

#demoButton:hover:not(:disabled) {
  border-color: #ffad98;
  background: #ffad98;
}

#wipeControls {
  display: flex;
  min-width: 0;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding-block: 16px 2px;
  color: var(--muted);
}

#wipeControls label {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 550;
}

#wipeRange {
  width: min(100%, 30rem);
  min-width: 5rem;
  min-height: 36px;
  margin: 0;
  accent-color: var(--accent);
  cursor: ew-resize;
  touch-action: pan-y;
}

#wipeValue {
  min-width: 3.5ch;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

#blinkToggle {
  min-width: 108px;
}

#statusMessage {
  min-width: 0;
  margin: 14px 0 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--panel-deep);
  color: var(--muted);
  overflow-wrap: anywhere;
}

#statusMessage:empty {
  display: none;
}

@media (max-width: 680px) {
  #appShell {
    padding: 16px;
  }

  #beforeDropZone,
  #afterDropZone {
    min-height: 124px;
    padding: 15px;
  }

  #comparisonArea {
    margin-block-start: 22px;
    padding: 12px;
  }

  #emptyState {
    min-height: 280px;
    padding: 24px 16px;
  }

  #compareStage {
    min-height: 200px;
  }

  #beforeView::before,
  #afterView::before {
    top: 8px;
    left: 8px;
    padding: 3px 7px;
    font-size: 0.6875rem;
  }
}

@media (max-width: 520px) {
  #appShell {
    padding: 14px;
  }

  #beforeDropZone,
  #afterDropZone {
    min-height: 112px;
  }

  #comparisonArea {
    padding: 10px;
  }

  #compareStage {
    min-height: 170px;
  }

  #compareStage[data-mode="overlay"] {
    min-height: 0;
  }

  #wipeControls {
    gap: 8px 10px;
  }

  #wipeRange {
    flex: 1 1 8rem;
  }

  button[data-mode],
  [role="tab"][data-mode],
  [role="button"][data-mode] {
    min-width: 0;
    flex: 1 1 auto;
    padding-inline: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }

  /* Keep blink mode as a stable two-up comparison instead of auto-flashing. */
  #compareStage[data-mode="blink"] {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    background: var(--line-strong);
  }

  #compareStage[data-mode="blink"] #beforeView,
  #compareStage[data-mode="blink"] #afterView {
    position: relative;
    inset: auto;
    width: auto;
    height: auto;
    grid-area: auto;
    aspect-ratio: 16 / 10;
    clip-path: none;
    visibility: visible !important;
    opacity: 1 !important;
  }
}

/* Product composition: compare first, with paired source controls. */
:root {
  font-family: "Avenir Next", "Segoe UI", Arial, sans-serif;
}

#appShell {
  max-width: 1440px;
  padding: clamp(18px, 2.8vw, 36px);
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-block-end: 24px;
  padding-block-end: 14px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  color: var(--text) !important;
  font-weight: 650;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgb(239 146 124 / 55%);
  border-radius: 10px;
  background: rgb(239 146 124 / 10%);
  color: var(--accent);
  font-size: 1.05rem;
  font-weight: 750;
}

.brand-name {
  display: flex;
  flex-wrap: wrap;
  gap: 0 5px;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
}

.brand-name > span {
  color: var(--muted);
  font-weight: 500;
}

.version-badge {
  flex: 0 0 auto;
  margin: 0;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.workspace {
  display: grid;
  min-width: 0;
  gap: clamp(20px, 2.5vw, 30px);
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 340px);
  align-items: end;
  gap: 28px;
  padding-block-end: 2px;
}

.intro > div {
  min-width: 0;
  max-width: 68ch;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--quiet);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.09em;
  line-height: 1.35;
  text-transform: uppercase;
}

.intro .eyebrow {
  color: var(--accent);
}

#appShell .intro h1 {
  font-family: "Avenir Next", "Segoe UI", Arial, sans-serif;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.intro-copy {
  max-width: 56ch;
  margin: 10px 0 0;
  font-size: 0.95rem;
}

.local-note {
  display: flex;
  max-width: 36ch;
  align-items: flex-start;
  gap: 9px;
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--panel);
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.45;
}

.local-note-mark {
  flex: 0 0 auto;
  color: #86c8a4;
  font-size: 0.75rem;
}

.noscript-message {
  margin: 0;
  padding: 12px;
  border: 1px solid #a75445;
  border-radius: var(--radius-small);
  background: #271a18;
  color: #ffd0c2 !important;
}

.source-section,
.comparison-section {
  display: grid;
  min-width: 0;
  gap: 12px;
}

.section-heading {
  display: flex;
  min-width: 0;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

.section-heading > div:first-child {
  min-width: 0;
}

.section-heading .eyebrow {
  margin-block-end: 5px;
}

#appShell .section-heading h2 {
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.25;
}

.section-hint {
  max-width: 34ch;
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: right;
}

.upload-grid {
  display: grid;
  min-width: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

#beforeDropZone,
#afterDropZone {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 0;
  align-content: start;
  justify-content: stretch;
  gap: 10px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow-wrap: anywhere;
}

.upload-card-heading {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
}

.source-index {
  display: grid;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--panel-raised);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
}

#appShell .upload-card-heading h3 {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.3;
}

#appShell .upload-card-heading p {
  margin: 2px 0 0;
  font-size: 0.78rem;
}

.drop-hint {
  min-height: 2.3em;
  margin: 0 !important;
  color: var(--quiet) !important;
  font-size: 0.76rem;
  line-height: 1.4;
}

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

#beforePickButton,
#afterPickButton {
  width: 100%;
}

.file-details {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  gap: 8px 14px;
  width: 100%;
  margin: 0;
  padding-block-start: 9px;
  border-top: 1px solid var(--line);
}

.file-details > div {
  min-width: 0;
}

.file-details dt {
  color: var(--quiet);
  font-size: 0.7rem;
}

.file-details dd {
  margin: 2px 0 0;
  overflow-wrap: anywhere;
  color: var(--text);
  font-size: 0.76rem;
  line-height: 1.4;
}

#comparisonArea {
  margin-block-start: 0;
}

.comparison-heading {
  align-items: center;
}

.comparison-actions,
.blink-controls {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 7px;
}

button.button-quiet {
  background: transparent;
}

.comparison-toolbar {
  display: flex;
  min-width: 0;
  align-items: end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-start: 2px;
}

.mode-switcher {
  display: grid;
  min-width: 0;
  max-width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
}

.mode-switcher legend {
  float: none;
  width: auto;
  margin: 0 0 6px;
  padding: 0;
  color: var(--quiet);
  font-size: 0.73rem;
}

.mode-options {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-deep);
}

button.mode-button {
  min-width: 82px;
  min-height: 44px;
  padding-inline: 12px;
}

.comparison-canvas {
  min-width: 0;
  margin-block-start: 12px;
}

#emptyState {
  min-height: clamp(240px, 34vw, 420px);
}

.empty-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--accent);
  font-size: 1.35rem;
}

#compareStage[data-mode="side"],
#compareStage[data-mode="blink"] {
  height: clamp(220px, 40vw, 560px);
  min-height: 220px;
}

#compareStage[data-mode="side"] #beforeView,
#compareStage[data-mode="side"] #afterView,
#compareStage[data-mode="blink"] #beforeView,
#compareStage[data-mode="blink"] #afterView {
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  margin: 0;
  aspect-ratio: auto;
}

#beforeView,
#afterView {
  margin: 0;
}

#beforeView figcaption,
#afterView figcaption {
  position: absolute;
  z-index: 3;
  top: 10px;
  left: 10px;
  max-width: calc(100% - 20px);
  margin: 0;
  padding: 4px 9px;
  overflow: hidden;
  border: 1px solid rgb(255 255 255 / 14%);
  border-radius: 999px;
  background: rgb(20 22 25 / 90%);
  color: var(--text);
  font-size: 0.73rem;
  font-weight: 600;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
}

#afterView figcaption {
  border-color: rgb(239 146 124 / 45%);
}

#beforeView::before,
#afterView::before {
  display: none;
}

#compareStage[data-mode="overlay"] {
  height: auto;
  min-height: 0;
  aspect-ratio: 16 / 10;
}

#compareStage[data-mode="overlay"] #beforeView,
#compareStage[data-mode="overlay"] #afterView {
  margin: 0;
}

#statusMessage {
  margin-block: 12px 0;
  font-size: 0.82rem;
}

.app-footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-block-start: 22px;
  padding-block-start: 12px;
  border-top: 1px solid var(--line);
}

.app-footer p {
  margin: 0;
  color: var(--quiet) !important;
  font-size: 0.74rem;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 10px;
  left: 10px;
  padding: 10px 12px;
  transform: translateY(-160%);
  border: 1px solid var(--accent);
  border-radius: var(--radius-small);
  background: var(--panel-raised);
  color: var(--text) !important;
}

.skip-link:focus {
  transform: translateY(0);
}

@media (max-width: 680px) {
  #appShell {
    padding: 16px;
  }

  .workspace {
    gap: 20px;
  }

  .intro {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .local-note {
    max-width: 100%;
  }

  .upload-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .section-heading {
    align-items: flex-start;
  }

  .section-hint {
    max-width: 28ch;
  }

  #comparisonArea {
    padding: 12px;
  }

  .comparison-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .comparison-actions {
    width: 100%;
  }

  .comparison-toolbar {
    align-items: stretch;
  }

  .mode-switcher,
  .mode-options {
    width: 100%;
  }

  button.mode-button {
    min-width: 0;
    flex: 1 1 76px;
    padding-inline: 8px;
  }

  #compareStage[data-mode="side"],
  #compareStage[data-mode="blink"] {
    height: 220px;
  }

  #emptyState {
    min-height: 250px;
  }

  .app-footer {
    flex-direction: column;
  }
}

@media (max-width: 380px) {
  #appShell {
    padding: 12px;
  }

  .app-header {
    margin-block-end: 19px;
  }

  .section-heading {
    flex-direction: column;
    gap: 5px;
  }

  .section-hint {
    max-width: none;
    text-align: left;
  }

  #comparisonArea {
    padding: 10px;
  }

  .upload-card {
    padding: 13px;
  }

  .file-details {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  }

  button.mode-button {
    flex-basis: 68px;
    padding-inline: 6px;
  }
}

/* Separate live website comparison. */
.live-section {
  display: grid; min-width: 0; gap: 14px;
  padding: clamp(12px, 2vw, 22px); border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 2px); background: var(--panel);
}
.live-description, .live-status { margin: 0; font-size: 0.85rem; overflow-wrap: anywhere; }
.live-input-grid, .live-frame-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; min-width: 0;
}
.live-field { display: grid; min-width: 0; gap: 6px; }
.live-field label { font-size: 0.85rem; font-weight: 600; }
.live-field input {
  width: 100%; min-width: 0; min-height: 44px; padding: 10px 12px;
  border: 1px solid var(--line-strong); border-radius: var(--radius-small);
  background: var(--panel-deep); color: var(--text);
}
.live-actions { display: flex; flex-wrap: wrap; gap: 8px; }
#liveOpenButton { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); }
#liveOpenButton:hover:not(:disabled) { border-color: #ffad98; background: #ffad98; }
.live-status { padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-small); background: var(--panel-deep); }
.live-frame-card { min-width: 0; overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--panel-deep); }
#appShell .live-frame-card h3 { margin: 0; padding: 10px 12px; font-size: 0.85rem; }
.live-frame-card iframe { display: block; width: 100%; height: clamp(320px, 45vw, 600px); border: 0; border-top: 1px solid var(--line); background: #fff; }
@media (max-width: 680px) {
  .live-input-grid, .live-frame-grid { grid-template-columns: minmax(0, 1fr); }
  .live-frame-card iframe { height: 360px; }
}

@media (prefers-reduced-motion: reduce) {
  #compareStage[data-mode="blink"] {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  #compareStage[data-mode="blink"] #beforeView,
  #compareStage[data-mode="blink"] #afterView {
    margin: 0;
  }
}

/* Shared workspace and source selector. */
.source-selector { display:flex; flex-wrap:wrap; align-items:center; gap:8px; }
.source-selector button[aria-pressed="true"] { background:var(--accent); border-color:var(--accent); color:var(--accent-ink); }
.source-help { position:relative; }
.source-help summary { display:grid; place-items:center; width:44px; height:44px; border:1px solid var(--line-strong); border-radius:50%; cursor:pointer; list-style:none; }
.source-help summary::-webkit-details-marker { display:none; }
.source-help p { position:absolute; z-index:10; top:100%; right:0; width:min(320px,85vw); padding:14px; border:1px solid var(--line-strong); border-radius:var(--radius); background:var(--panel-raised); box-shadow:0 12px 24px #0008; }
.live-stage { position:relative; display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); width:100%; height:clamp(320px,45vw,600px); overflow:hidden; isolation:isolate; border:1px solid var(--line-strong); border-radius:var(--radius); background:var(--line-strong); gap:1px; }
.live-view { position:relative; min-width:0; min-height:0; overflow:hidden; background:white; }
.live-view span { position:absolute; z-index:1; top:10px; left:10px; padding:4px 9px; border-radius:999px; background:#202327e8; color:white; font-size:.73rem; pointer-events:none; }
.live-view iframe { display:block; width:100%; height:100%; border:0; background:white; }
.live-stage.dragging-divider iframe { pointer-events:none; }
.live-stage[data-mode="overlay"], .live-stage[data-mode="blink"] { display:block; }
.live-stage[data-mode="overlay"] .live-view, .live-stage[data-mode="blink"] .live-view { position:absolute; inset:0; width:100%; height:100%; }
.live-stage[data-mode="overlay"] .live-after { clip-path:inset(0 calc(100% - var(--wipe-position, 50%)) 0 0); }
.live-stage[data-mode="overlay"] .live-before span { left:auto; right:10px; }
.live-stage[data-mode="blink"][data-blink-show="before"] .live-after, .live-stage[data-mode="blink"][data-blink-show="after"] .live-before { visibility:hidden; }
.wipe-handle { display:none; position:absolute; z-index:8; top:0; bottom:0; left:var(--wipe-position); width:44px; transform:translateX(-50%); cursor:ew-resize; touch-action:none; }
.wipe-handle::before { content:""; position:absolute; top:0; bottom:0; left:50%; width:2px; background:var(--accent); }
.wipe-handle span { position:absolute; top:50%; left:50%; display:grid; place-items:center; width:38px; height:38px; transform:translate(-50%,-50%); border:1px solid var(--accent); border-radius:50%; background:var(--panel-deep); color:white; }
[data-mode="overlay"] > .wipe-handle { display:block; }
#compareStage[data-mode="overlay"]::after { display:none; }
@media (max-width:680px) { .live-stage { height:360px; } }