:root {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: oklch(0.24 0.012 255);
  background: oklch(0.965 0.006 250);
  font-synthesis: none;
  --background: oklch(0.965 0.006 250);
  --surface: oklch(0.99 0.004 250);
  --surface-raised: oklch(1 0.003 250);
  --surface-muted: oklch(0.935 0.008 250);
  --text: oklch(0.24 0.012 255);
  --text-muted: oklch(0.52 0.018 255);
  --border: oklch(0.86 0.012 250);
  --border-strong: oklch(0.74 0.02 250);
  --accent: oklch(0.58 0.16 250);
  --accent-hover: oklch(0.52 0.17 250);
  --accent-soft: oklch(0.93 0.035 250);
  --success: oklch(0.54 0.13 155);
  --success-soft: oklch(0.93 0.04 155);
  --error: oklch(0.56 0.18 25);
  --error-soft: oklch(0.94 0.04 25);
  --warning: oklch(0.68 0.15 75);
  --focus: oklch(0.66 0.18 250);
  --shadow: 0 14px 40px oklch(0.32 0.025 250 / 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--background);
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button,
select,
input[type="range"],
.file-button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
.file-button:has(input:focus-visible) {
  outline: 3px solid color-mix(in oklch, var(--focus), transparent 50%);
  outline-offset: 2px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

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

h1 {
  margin-block-end: 0;
  font-size: 1.45rem;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

h2 {
  margin-block-end: 0.45rem;
  font-size: 1.75rem;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

h3 {
  margin-block-end: 0.25rem;
  font-size: 1rem;
}

.app-shell {
  width: min(1480px, 100%);
  min-height: 100vh;
  margin-inline: auto;
  padding: 28px clamp(18px, 3vw, 48px) 56px;
}

.app-header {
  display: flex;
  min-height: 62px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.eyebrow {
  margin-block-end: 5px;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.status-stack {
  display: grid;
  width: 270px;
  gap: 5px;
}

.status {
  display: grid;
  width: 100%;
  min-height: 38px;
  place-items: center;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.84rem;
  text-align: center;
  transition: background-color 180ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.sync-status {
  min-height: 18px;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-align: center;
}

.sync-status[data-tone="working"] {
  color: var(--accent-hover);
}

.sync-status[data-tone="success"] {
  color: var(--success);
}

.sync-status[data-tone="error"] {
  color: var(--error);
}

.status[data-tone="working"] {
  border-color: color-mix(in oklch, var(--accent), transparent 55%);
  background: var(--accent-soft);
  color: var(--accent-hover);
}

.status[data-tone="success"] {
  border-color: color-mix(in oklch, var(--success), transparent 55%);
  background: var(--success-soft);
  color: var(--success);
}

.status[data-tone="error"] {
  border-color: color-mix(in oklch, var(--error), transparent 55%);
  background: var(--error-soft);
  color: var(--error);
}

.step-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-block: 30px 42px;
  border-block-end: 1px solid var(--border);
}

.step-nav__item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  border: 0;
  border-block-end: 2px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font-weight: 650;
}

.step-nav__item span {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  font-size: 0.75rem;
}

.step-nav__item:hover {
  color: var(--text);
}

.step-nav__item.is-active {
  border-block-end-color: var(--accent);
  color: var(--accent);
}

.step-nav__item.is-active span {
  border-color: var(--accent);
  background: var(--accent);
  color: oklch(0.98 0.004 250);
}

.view[hidden] {
  display: none;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-block-end: 28px;
}

.section-heading > div:first-child {
  max-width: 70ch;
}

.section-heading p:last-child {
  margin-block-end: 0;
  color: var(--text-muted);
  line-height: 1.55;
}

.section-heading--compact {
  align-items: center;
}

.reference-strip {
  display: flex;
  gap: 10px;
  margin-block-end: 18px;
  padding: 3px;
  overflow-x: auto;
}

.reference-strip[hidden] {
  display: none;
}

.reference-item {
  position: relative;
  flex: 0 0 220px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface);
}

.reference-item.is-selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.reference-item__select {
  display: grid;
  width: 100%;
  min-height: 68px;
  grid-template-columns: 88px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 6px 30px 6px 6px;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: start;
}

.reference-item__select:hover {
  background: var(--surface-muted);
}

.reference-item__select img {
  width: 88px;
  height: 52px;
  border-radius: 6px;
  object-fit: cover;
  background: oklch(0.18 0.01 255);
}

.reference-item__select span,
.reference-item__select strong,
.reference-item__select small {
  display: block;
  min-width: 0;
}

.reference-item__select small {
  margin-block-start: 3px;
  overflow: hidden;
  color: var(--text-muted);
  font-size: 0.72rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.reference-item__remove {
  position: absolute;
  inset-block-start: 5px;
  inset-inline-end: 5px;
  width: 26px;
  height: 26px;
  border: 0;
  border-radius: 6px;
  background: color-mix(in oklch, var(--surface), transparent 8%);
  color: var(--text-muted);
  line-height: 1;
}

.reference-item__remove:hover {
  background: var(--error-soft);
  color: var(--error);
}

.calibration-guide {
  margin-block-end: 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.calibration-guide summary {
  padding: 13px 16px;
  cursor: pointer;
  font-weight: 700;
}

.calibration-guide__content {
  display: grid;
  gap: 16px;
  padding: 0 16px 16px;
  border-block-start: 1px solid var(--border);
}

.calibration-guide ol {
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding-inline-start: 24px;
}

.calibration-guide li {
  padding-inline-start: 5px;
}

.calibration-guide li strong,
.calibration-guide li span {
  display: block;
}

.calibration-guide li span {
  margin-block-start: 2px;
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.pipeline-map {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.pipeline-map span {
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface-muted);
  color: var(--text);
  font-weight: 650;
}

.pipeline-map b,
.pipeline-map i {
  font-style: normal;
  font-weight: 500;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
}

.button,
select,
input[type="text"] {
  min-height: 40px;
  border: 1px solid var(--border-strong);
  border-radius: 9px;
  background: var(--surface-raised);
  color: var(--text);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  font-weight: 650;
  white-space: nowrap;
}

.button:hover:not(:disabled) {
  border-color: var(--accent);
}

.button--primary {
  border-color: var(--accent);
  background: var(--accent);
  color: oklch(0.98 0.004 250);
}

.button--primary:hover:not(:disabled) {
  border-color: var(--accent-hover);
  background: var(--accent-hover);
}

.button--quiet {
  border-color: transparent;
  background: transparent;
  color: var(--text-muted);
}

.button--quiet:hover:not(:disabled) {
  border-color: var(--border);
  background: var(--surface-muted);
  color: var(--text);
}

select,
input[type="text"] {
  padding-inline: 11px;
}

.file-button input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.source-list {
  display: grid;
  gap: 12px;
}

.source-row {
  display: grid;
  grid-template-columns: 220px minmax(220px, 1fr) auto;
  align-items: center;
  gap: 22px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  transition: border-color 180ms cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.source-row.is-selected {
  border-color: color-mix(in oklch, var(--accent), transparent 35%);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--accent), transparent 88%);
}

.source-row__preview {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 8px;
  background: oklch(0.18 0.01 255);
}

.source-row__preview video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.source-row__info span {
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.source-row__info h3 {
  margin-block: 5px;
}

.source-row__info p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.source-row__actions {
  display: flex;
  align-items: center;
  gap: 5px;
}

.empty-state {
  display: grid;
  place-items: center;
  gap: 8px;
  min-height: 260px;
  padding: 32px;
  color: var(--text-muted);
  text-align: center;
}

.empty-state strong {
  color: var(--text);
  font-size: 1rem;
}

.empty-state--wide {
  min-height: 300px;
  border: 1px dashed var(--border-strong);
  border-radius: 14px;
  background: color-mix(in oklch, var(--surface), transparent 30%);
}

.calibration-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  min-height: 620px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.canvas-stage {
  display: grid;
  min-width: 0;
  min-height: 620px;
  max-height: calc(100vh - 260px);
  place-items: center;
  overflow: auto;
  padding: 24px;
  background-color: oklch(0.91 0.008 250);
  background-image: linear-gradient(45deg, oklch(0.88 0.008 250) 25%, transparent 25%),
    linear-gradient(-45deg, oklch(0.88 0.008 250) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, oklch(0.88 0.008 250) 75%),
    linear-gradient(-45deg, transparent 75%, oklch(0.88 0.008 250) 75%);
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-size: 16px 16px;
}

#calibration-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  border-radius: 4px;
  box-shadow: 0 8px 30px oklch(0.2 0.02 255 / 0.2);
  cursor: crosshair;
  touch-action: none;
}

.inspector {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 24px;
  border-inline-start: 1px solid var(--border);
  background: var(--surface);
}

.field-stack {
  display: grid;
  gap: 7px;
}

.field-stack label,
.range-label label {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.hint {
  min-height: 58px;
  margin: 0;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface-muted);
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.range-label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.range-label output {
  color: var(--text);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

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

.inspector__section {
  min-height: 0;
  flex: 1;
  overflow: auto;
  border-block-start: 1px solid var(--border);
  padding-block-start: 18px;
}

.inspector__title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-block-end: 10px;
}

.inspector__title h3 {
  margin: 0;
}

.inspector__title span {
  display: grid;
  min-width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--text-muted);
  font-size: 0.75rem;
}

.region-list {
  display: grid;
  gap: 6px;
}

.region-row {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 9px;
  border-radius: 8px;
}

.region-row:hover {
  background: var(--surface-muted);
}

.region-row span {
  display: grid;
  gap: 2px;
}

.region-row strong {
  font-size: 0.84rem;
}

.region-row small {
  color: var(--text-muted);
  font-size: 0.72rem;
}

.icon-button {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text-muted);
  font-size: 1.2rem;
}

.icon-button:hover {
  background: var(--error-soft);
  color: var(--error);
}

.muted-copy {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.inspector__actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding-block-start: 2px;
}

.results-list {
  display: grid;
  gap: 18px;
}

.unique-lines {
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: var(--surface);
}

.unique-lines header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  border-block-end: 1px solid var(--border);
}

.unique-lines h3 {
  margin: 0;
}

.unique-lines header span {
  min-width: 28px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 750;
  text-align: center;
}

.unique-lines ol {
  margin: 0;
  padding: 0;
  list-style-position: inside;
}

.unique-lines li {
  padding: 11px 20px;
  border-block-end: 1px solid var(--border);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.5;
}

.unique-lines li:last-child {
  border-block-end: 0;
}

.result-group {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}

.result-group > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 20px;
  border-block-end: 1px solid var(--border);
}

.result-group header h3 {
  margin-block-end: 3px;
}

.result-group header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.82rem;
}

.result-badge {
  padding: 6px 9px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.result-badge[data-tone="success"] {
  background: var(--success-soft);
  color: var(--success);
}

.result-badge[data-tone="error"] {
  background: var(--error-soft);
  color: var(--error);
}

.result-badge[data-tone="neutral"] {
  background: var(--surface-muted);
  color: var(--text-muted);
}

.result-error {
  margin: 0;
  padding: 22px 20px;
  color: var(--error);
}

.result-hint {
  margin: 0;
  padding: 22px 20px;
  color: var(--text-muted);
}

.diagnostics {
  border-block-start: 1px solid var(--border);
}

.diagnostics summary {
  padding: 13px 20px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.diagnostics__content {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(420px, 1.4fr);
  gap: 18px;
  padding: 0 20px 20px;
}

.diagnostics__preview {
  align-self: start;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface-muted);
}

.diagnostics__preview img {
  display: block;
  width: 100%;
  height: auto;
}

.diagnostics__preview p {
  margin: 0;
  padding: 9px 11px;
  color: var(--text-muted);
  font-size: 0.74rem;
}

.stage-list {
  display: grid;
  gap: 7px;
}

.stage-row {
  display: grid;
  grid-template-columns: 11px minmax(130px, 0.45fr) minmax(180px, 1fr) 120px;
  align-items: center;
  gap: 10px;
  min-height: 58px;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 9px;
}

.stage-row__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--border-strong);
}

.stage-row[data-status="found"] .stage-row__dot {
  background: var(--success);
}

.stage-row[data-status="not-found"] .stage-row__dot,
.stage-row[data-status="error"] .stage-row__dot {
  background: var(--error);
}

.stage-row[data-status="skipped"] {
  opacity: 0.68;
}

.stage-row strong {
  font-size: 0.8rem;
}

.stage-row p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.74rem;
  line-height: 1.35;
}

.stage-row img {
  display: block;
  width: 120px;
  height: 42px;
  object-fit: contain;
  border-radius: 5px;
  background: oklch(0.18 0.01 255);
}

.stage-row__empty {
  color: var(--text-muted);
  font-size: 0.72rem;
  text-align: center;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

th,
td {
  padding: 12px 20px;
  border-block-end: 1px solid var(--border);
  text-align: start;
}

th {
  background: var(--surface-muted);
  color: var(--text-muted);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

tbody tr:last-child td {
  border-block-end: 0;
}

td:nth-child(2),
td:nth-child(3),
td:nth-child(5) {
  font-variant-numeric: tabular-nums;
  font-weight: 650;
}

@media (max-width: 960px) {
  .section-heading {
    align-items: start;
    flex-direction: column;
  }

  .button-row {
    justify-content: flex-start;
  }

  .source-row {
    grid-template-columns: 180px 1fr;
  }

  .source-row__actions {
    grid-column: 1 / -1;
    justify-content: flex-end;
  }

  .calibration-layout {
    grid-template-columns: 1fr;
  }

  .diagnostics__content {
    grid-template-columns: 1fr;
  }

  .stage-row {
    grid-template-columns: 11px minmax(110px, 0.45fr) minmax(160px, 1fr) 100px;
  }

  .stage-row img {
    width: 100px;
  }

  .inspector {
    border-block-start: 1px solid var(--border);
    border-inline-start: 0;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding-inline: 14px;
  }

  .app-header {
    align-items: start;
    flex-direction: column;
  }

  .status-stack {
    width: 100%;
  }

  .step-nav {
    margin-block: 22px 30px;
  }

  .step-nav__item {
    flex-direction: column;
    gap: 5px;
    font-size: 0.76rem;
  }

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

  .source-row__actions {
    grid-column: auto;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .button-row,
  .button-row > * {
    width: 100%;
  }

  .canvas-stage {
    min-height: 360px;
    padding: 12px;
  }

  .result-group {
    overflow-x: auto;
  }

  .stage-row {
    grid-template-columns: 11px 1fr;
  }

  .stage-row p,
  .stage-row img,
  .stage-row__empty {
    grid-column: 2;
  }

  .stage-row img {
    width: 100%;
    height: 68px;
  }

  table {
    min-width: 680px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    color: oklch(0.9 0.009 250);
    background: oklch(0.18 0.012 255);
    --background: oklch(0.18 0.012 255);
    --surface: oklch(0.225 0.014 255);
    --surface-raised: oklch(0.255 0.015 255);
    --surface-muted: oklch(0.28 0.016 255);
    --text: oklch(0.9 0.009 250);
    --text-muted: oklch(0.68 0.018 250);
    --border: oklch(0.34 0.018 255);
    --border-strong: oklch(0.43 0.022 255);
    --accent: oklch(0.7 0.15 250);
    --accent-hover: oklch(0.75 0.13 250);
    --accent-soft: oklch(0.3 0.05 250);
    --success: oklch(0.72 0.12 155);
    --success-soft: oklch(0.29 0.045 155);
    --error: oklch(0.72 0.15 25);
    --error-soft: oklch(0.3 0.05 25);
    --warning: oklch(0.78 0.13 75);
    --shadow: 0 18px 48px oklch(0.08 0.015 255 / 0.28);
  }

  .canvas-stage {
    background-color: oklch(0.16 0.01 255);
    background-image: linear-gradient(45deg, oklch(0.2 0.012 255) 25%, transparent 25%),
      linear-gradient(-45deg, oklch(0.2 0.012 255) 25%, transparent 25%),
      linear-gradient(45deg, transparent 75%, oklch(0.2 0.012 255) 75%),
      linear-gradient(-45deg, transparent 75%, oklch(0.2 0.012 255) 75%);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}