:root {
  color-scheme: light;
  --bg: #ffffff;
  --panel: #ffffff;
  --panel-soft: #f7f7f7;
  --line: #d4d4d4;
  --line-strong: #8a8a8a;
  --text: #050505;
  --muted: #666666;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.5;
}

.wrap {
  max-width: 1320px;
  margin: 0 auto;
  padding: 20px 18px 48px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.hero {
  padding: 20px;
  margin-bottom: 14px;
}

.usage-metrics {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin-bottom: 14px;
}

.usage-metric {
  display: grid;
  gap: 6px;
  min-height: 92px;
  padding: 16px;
  background: var(--panel);
}

.usage-metric-label {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.usage-metric-value {
  color: var(--text);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 6px;
  font-size: clamp(1.8rem, 3.4vw, 3rem);
  line-height: 1.05;
}

h2 {
  margin-bottom: 0;
  font-size: 1.25rem;
}

h3 {
  margin-bottom: 0;
  font-size: 1rem;
}

.lead {
  max-width: 72ch;
  margin-bottom: 0;
  color: var(--muted);
}

.workspace {
  display: grid;
  gap: 14px;
}

.panel {
  padding: 16px;
}

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

.slot-card {
  position: relative;
  min-height: 174px;
  overflow: hidden;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.slot-card.dragover,
.slot-card.has-file {
  border-color: var(--text);
}

.upload-field {
  position: absolute;
  inset: 0;
  display: block;
  cursor: pointer;
}

.dropzone-art {
  position: absolute;
  inset: 0 0 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.dropzone-art svg {
  width: 64px;
  height: 64px;
  fill: none;
  stroke: var(--text);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.slot-status {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 12px;
  z-index: 2;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
  text-align: center;
  pointer-events: none;
}

.slot-status-loaded {
  color: var(--text);
}

.slot-clear[hidden] {
  display: none !important;
}

.slot-clear {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 3;
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: var(--panel);
  color: var(--text);
}

.slot-clear svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.file-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.precision-row {
  display: grid;
  grid-template-columns: auto 3ch minmax(180px, 1fr);
  gap: 12px;
  align-items: center;
  margin-top: 12px;
  padding: 12px 0 0;
  border-top: 1px solid var(--line);
}

.precision-row label,
.precision-value {
  font-weight: 800;
}

.precision-value {
  text-align: right;
  color: var(--text);
}

.control-help {
  grid-column: 1 / -1;
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.alignment-option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  cursor: pointer;
}

.alignment-option input {
  margin-top: 3px;
  accent-color: var(--text);
}

.alignment-option span {
  display: grid;
  gap: 3px;
}

.alignment-option small {
  color: var(--muted);
  line-height: 1.4;
}

input[type='range'] {
  width: 100%;
  accent-color: var(--text);
}

.form-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 14px;
}

.job-progress {
  margin-top: 16px;
  padding: 14px;
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-soft);
}

.job-progress.hidden {
  display: none;
}

.job-progress-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.job-progress-head p,
.job-queue-message {
  margin: 4px 0 0;
  color: var(--muted);
}

.job-progress progress {
  width: 100%;
  height: 14px;
  border: 0;
  border-radius: 999px;
  overflow: hidden;
}

.job-progress progress::-webkit-progress-bar {
  background: var(--line);
}

.job-progress progress::-webkit-progress-value {
  background: var(--text);
}

.job-progress progress::-moz-progress-bar {
  background: var(--text);
}

.job-queue-message {
  font-weight: 700;
}

.job-cancel {
  justify-self: start;
}

.area-page-picker {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.area-page-picker span {
  font-weight: 700;
  color: var(--text);
}

.area-page-picker select {
  max-width: 220px;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
}

button,
.download,
.preview-btn,
.viewer-download,
.viewer-close {
  appearance: none;
  border: 1px solid var(--text);
  border-radius: 8px;
  background: var(--text);
  color: var(--bg);
  padding: 10px 14px;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  line-height: 1;
}

button:hover,
.download:hover,
.preview-btn:hover,
.viewer-download:hover,
.viewer-close:hover {
  background: #333333;
  border-color: #333333;
}

button.secondary {
  background: var(--panel);
  color: var(--text);
  border-color: var(--line-strong);
}

button.secondary:hover {
  background: var(--panel-soft);
  border-color: var(--text);
}

button:disabled {
  cursor: wait;
  opacity: 0.5;
}

.error {
  margin: 0 0 14px;
  padding: 12px 14px;
  border: 1px solid var(--text);
  border-radius: 8px;
  background: var(--panel-soft);
  color: var(--text);
  font-weight: 700;
}

.results-card {
  margin-top: 14px;
  padding: 16px;
  display: grid;
  gap: 14px;
}

.result-head,
.page-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.results-body {
  display: grid;
  gap: 14px;
}

.results-body-with-sidebar {
  grid-template-columns: minmax(210px, 260px) minmax(0, 1fr);
  align-items: start;
}

.pages-sidebar {
  position: sticky;
  top: 16px;
  display: grid;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.page-nav {
  display: grid;
  gap: 7px;
}

.page-nav-vertical {
  max-height: min(66vh, 640px);
  overflow: auto;
  padding-right: 3px;
}

.page-nav-btn {
  width: 100%;
  justify-content: flex-start;
  gap: 9px;
  min-height: 42px;
  background: var(--panel);
  color: var(--text);
  border-color: var(--line);
  text-align: left;
}

.page-nav-btn.is-active {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.page-nav-index {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border: 1px solid currentColor;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 900;
}

.page-nav-label {
  min-width: 0;
  font-weight: 800;
}

.results-pages {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page {
  padding: 14px;
  scroll-margin-top: 16px;
}

.page-status-list {
  display: grid;
  gap: 5px;
  margin: 0 0 10px;
  padding: 9px 11px;
  border-left: 3px solid var(--line-strong);
  background: var(--panel-soft);
  color: var(--muted);
  font-size: 0.86rem;
}

.page-status-list p {
  margin: 0;
}

.incompatible-size {
  display: grid;
  gap: 12px;
}

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

.size-preview-grid figure {
  margin: 0;
  display: grid;
  gap: 7px;
}

.size-preview-grid figcaption {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.size-preview-grid img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 60vh;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.text-diff {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.text-diff summary {
  cursor: pointer;
  font-weight: 800;
}

.text-diff ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.text-diff li + li {
  margin-top: 6px;
}

.page-compare {
  display: grid;
  gap: 10px;
}

.compare-caption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.compare-stage {
  position: relative;
  width: 100%;
  aspect-ratio: var(--page-aspect, auto);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.compare-loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  background: var(--panel);
  font-weight: 700;
  z-index: 3;
}

.compare-stage.is-loaded .compare-loading {
  display: none;
}

.compare-source {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.compare-overlay {
  position: absolute;
  inset: 0;
  clip-path: inset(0 0 0 var(--split, 50%));
  overflow: hidden;
}

.compare-diff {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.compare-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--split, 50%);
  border-left: 2px solid var(--text);
  transform: translateX(-1px);
  pointer-events: none;
}

.compare-stage::after {
  content: '';
  position: absolute;
  left: var(--split, 50%);
  top: 50%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--bg);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.compare-range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  appearance: none;
  background: transparent;
  cursor: ew-resize;
}

.compare-range::-webkit-slider-runnable-track {
  height: 100%;
  background: transparent;
}

.compare-range::-moz-range-track {
  height: 100%;
  background: transparent;
}

.compare-range::-webkit-slider-thumb {
  appearance: none;
  width: 0;
  height: 100%;
  border-radius: 50%;
  border: 0;
  background: transparent;
}

.compare-range::-moz-range-thumb {
  width: 0;
  height: 100%;
  border-radius: 50%;
  border: 0;
  background: transparent;
}

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

.page-note {
  padding: 12px 14px;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  color: var(--muted);
  background: var(--panel-soft);
}

.area-modal {
  position: fixed;
  inset: 0;
  z-index: 900;
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: 18px;
  background: rgba(255, 255, 255, 0.96);
}

.area-modal.hidden {
  display: none;
}

.area-dialog {
  width: min(1500px, 100%);
  max-height: calc(100vh - 36px);
  overflow: auto;
  padding: 16px;
  background: var(--bg);
}

.area-head,
.area-actions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
}

.area-status {
  margin-bottom: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  color: var(--text);
  font-weight: 700;
}

.area-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.area-grid section {
  min-width: 0;
}

.area-canvas {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  user-select: none;
  touch-action: none;
}

.area-canvas img {
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
}

.area-rect {
  position: absolute;
  border: 2px solid var(--text);
  background: rgba(255, 255, 255, 0.28);
  box-shadow: 0 0 0 9999px rgba(255, 255, 255, 0.42);
  cursor: move;
}

.area-rect::after {
  content: '';
  position: absolute;
  right: -5px;
  bottom: -5px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--text);
  background: var(--bg);
}

.viewer {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.viewer.hidden {
  display: none;
}

.viewer img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
  background: var(--bg);
  cursor: zoom-in;
  transform-origin: center center;
  transition: transform 120ms ease;
  user-select: none;
  touch-action: none;
  will-change: transform;
}

.viewer img.is-zoomed {
  cursor: grab;
}

.viewer img.is-dragging {
  cursor: grabbing;
  transition: none;
}

.viewer-close,
.viewer-download {
  position: fixed;
  top: 16px;
  right: 16px;
}

.viewer-download {
  right: 70px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1080px) {
  .upload-grid,
  .area-grid,
  .usage-metrics,
  .results-body-with-sidebar {
    grid-template-columns: 1fr;
  }

  .pages-sidebar {
    position: static;
  }
}

@media (max-width: 640px) {
  .wrap {
    padding: 14px 12px 36px;
  }

  .hero,
  .panel,
  .results-card,
  .page {
    padding: 14px;
  }

  .precision-row {
    grid-template-columns: 1fr auto;
  }

  .precision-row input {
    grid-column: 1 / -1;
  }

  .size-preview-grid {
    grid-template-columns: 1fr;
  }

  .form-actions,
  .slot-actions,
  .compare-caption {
    flex-direction: column;
    align-items: stretch;
  }

  button,
  .download,
  .preview-btn {
    width: 100%;
  }

  .viewer {
    align-items: flex-start;
    padding: 16px;
  }

  .viewer-close,
  .viewer-download {
    position: static;
    width: auto;
  }

  .viewer img {
    margin-top: 54px;
  }
}