:root {
  color-scheme: light;
  --ink: #17202c;
  --muted: #6e7988;
  --line: #d8dee7;
  --panel: #ffffff;
  --canvas: #e8edf3;
  --navy: #17324d;
  --blue: #1666d8;
  --blue-dark: #0d4fae;
  --teal: #00a9a5;
  --orange: #ef8b2c;
  --shadow: 0 12px 36px rgb(27 43 65 / 10%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-width: 1180px;
  background: #f4f7fa;
  color: var(--ink);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.topbar {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  color: white;
  background: var(--navy);
  box-shadow: 0 1px 0 rgb(255 255 255 / 8%);
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 13px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 39px;
  height: 39px;
  border: 1px solid rgb(255 255 255 / 32%);
  border-radius: 11px;
  background: linear-gradient(145deg, #2b78c8, #15a8a1);
  font: 700 22px/1 Georgia, serif;
}

.brand-block h1 {
  margin: 0;
  font-size: 20px;
  letter-spacing: 0.2px;
}

.brand-subline {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 3px 0 0;
  color: #bdcad8;
  font-size: 12px;
}

.brand-divider {
  color: rgb(255 255 255 / 42%);
}

.creator-credit {
  color: #e4eef6;
  font-weight: 650;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.language-switcher {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 3px;
  border: 1px solid rgb(255 255 255 / 24%);
  border-radius: 10px;
  background: rgb(255 255 255 / 8%);
}

.language-switcher-icon {
  padding: 0 5px 0 7px;
  color: #bcd3e5;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.03em;
}

.language-switcher button {
  min-width: 42px;
  padding: 5px 8px;
  border: 0;
  border-radius: 7px;
  color: #d8e5ef;
  background: transparent;
  font-size: 11px;
  font-weight: 750;
}

.language-switcher button:hover {
  color: white;
  background: rgb(255 255 255 / 10%);
}

.language-switcher button.active {
  color: #123450;
  background: #ffffff;
  box-shadow: 0 1px 5px rgb(0 0 0 / 18%);
}

.privacy-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid rgb(255 255 255 / 15%);
  border-radius: 999px;
  color: #d9e7ec;
  background: rgb(255 255 255 / 6%);
  font-size: 12px;
}

.privacy-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4bd3a5;
  box-shadow: 0 0 0 3px rgb(75 211 165 / 14%);
}

.app-shell {
  display: grid;
  grid-template-columns: 350px minmax(550px, 1fr) 280px;
  height: calc(100vh - 72px);
}

.control-panel {
  overflow-y: auto;
  border-right: 1px solid var(--line);
  background: var(--panel);
}

.panel-section {
  padding: 22px 22px 23px;
  border-bottom: 1px solid #e8ecf1;
  transition: padding 160ms ease, background-color 160ms ease;
}

.panel-section.panel-collapsible.is-collapsed {
  padding-top: 13px;
  padding-bottom: 13px;
  background: #fbfcfe;
}

.panel-section.panel-collapsible.is-collapsed > :not(.section-heading) {
  display: none !important;
}

.section-heading {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 11px;
  margin-bottom: 16px;
}

.panel-collapsible > .section-heading {
  padding-right: 25px;
  cursor: pointer;
  user-select: none;
}

.panel-collapsible > .section-heading::after {
  position: absolute;
  top: 6px;
  right: 3px;
  width: 8px;
  height: 8px;
  border-right: 2px solid #7d8b9d;
  border-bottom: 2px solid #7d8b9d;
  content: "";
  transform: rotate(45deg);
  transition: transform 160ms ease, border-color 160ms ease;
}

.panel-collapsible.is-expanded > .section-heading::after {
  transform: translateY(4px) rotate(225deg);
}

.panel-collapsible > .section-heading:hover h2,
.panel-collapsible > .section-heading:focus-visible h2 {
  color: #1765bd;
}

.panel-collapsible > .section-heading:focus-visible {
  border-radius: 8px;
  outline: 3px solid rgb(43 111 216 / 18%);
  outline-offset: 5px;
}

.panel-collapsible.is-collapsed > .section-heading {
  margin-bottom: 0;
}

.section-heading > div {
  min-width: 0;
  flex: 1;
}

.section-heading h2 {
  margin: 0;
  color: #203044;
  font-size: 15px;
  line-height: 1.2;
}

.section-heading p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.section-compact-status {
  display: none;
  overflow: hidden;
  margin-top: 4px;
  color: #66778a;
  font-size: 11px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.panel-collapsible.is-collapsed .section-heading p {
  display: none;
}

.panel-collapsible.is-collapsed .section-compact-status {
  display: block;
}

.step-number {
  display: grid;
  flex: 0 0 24px;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 7px;
  color: #185ea7;
  background: #e8f2ff;
  font-size: 12px;
  font-weight: 750;
}

.field-label {
  display: block;
  margin: 0 0 7px;
  color: #526174;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.target-style-label {
  margin-top: 2px;
}

.target-style-select {
  margin-bottom: 9px;
}

.select-control,
.compact-select,
.calibration-row input {
  border: 1px solid #cfd7e2;
  border-radius: 7px;
  color: #24364b;
  background: white;
  outline: none;
}

.calibration-reference-actions {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 7px;
}

.calibration-reference-actions button {
  min-height: 27px;
  padding: 0 7px;
  border: 1px solid #cbd6e2;
  border-radius: 6px;
  color: #33516e;
  background: white;
  font-size: 9px;
  font-weight: 650;
}

.calibration-reference-actions button:disabled {
  color: #a5b0bb;
  background: #f4f6f8;
}

.calibration-reference-actions span {
  margin-left: auto;
  color: #718195;
  font-size: 8px;
  white-space: nowrap;
}

.calibration-snap-toggle {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 9px;
  padding: 9px;
  border: 1px solid #c9ddec;
  border-radius: 8px;
  color: #29445f;
  background: #f4f9fd;
  cursor: pointer;
}

.calibration-snap-toggle input {
  margin-top: 2px;
}

.calibration-snap-toggle span {
  display: grid;
  gap: 2px;
}

.calibration-snap-toggle strong {
  font-size: 10px;
}

.calibration-snap-toggle small {
  color: #65788b;
  font-size: 8px;
  line-height: 1.45;
}

.select-control:focus,
.compact-select:focus,
.calibration-row input:focus {
  border-color: #5c91d0;
  box-shadow: 0 0 0 3px rgb(22 102 216 / 10%);
}

.calibration-row input.input-invalid {
  border-color: #cf5260;
  background: #fff7f8;
  box-shadow: 0 0 0 2px rgb(207 82 96 / 10%);
}

.status-line.invalid {
  border-color: #e4a4aa;
  color: #9f3540;
  background: #fff7f8;
}

.interference-scan-button {
  margin-top: 7px;
}

.exclusion-suggestion-review {
  margin-top: 8px;
  padding: 9px;
  border: 1px solid #e5bd72;
  border-radius: 8px;
  color: #6f5019;
  background: #fff9ee;
}

.exclusion-suggestion-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 10px;
}

.exclusion-suggestion-heading span {
  color: #8b6a31;
  font-size: 8px;
  font-variant-numeric: tabular-nums;
}

.exclusion-suggestion-review p {
  margin: 5px 0 0;
  color: #7c653c;
  font-size: 8px;
  line-height: 1.45;
}

.exclusion-suggestion-navigation,
.exclusion-suggestion-actions {
  margin-top: 6px;
}

.exclusion-suggestion-actions {
  grid-template-columns: 1.15fr 1.15fr 0.7fr;
}

.export-status {
  margin-top: 10px;
  padding: 9px 10px;
  border: 1px solid #d9e1ea;
  border-radius: 7px;
  font-size: 10px;
  line-height: 1.45;
}

.export-status.waiting {
  color: #687789;
  background: #f8fafc;
}

.export-status.blocked {
  border-color: #efc978;
  color: #865813;
  background: #fffaf0;
}

.export-status.ready {
  border-color: #9ed6c4;
  color: #176448;
  background: #f0fbf6;
}

.select-control {
  width: 100%;
  height: 38px;
  padding: 0 10px;
}

.button-row {
  display: flex;
  gap: 9px;
  margin-top: 12px;
}

.button-row.no-top-margin {
  margin-top: 0;
}

.button-row.no-top-margin > .button:not(.button-full) {
  flex: 1;
}

.button-row.compact-row {
  margin-top: 7px;
}

.button-row.compact-row .button {
  flex: 1;
  min-height: 31px;
  font-size: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 37px;
  padding: 0 13px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 700;
  transition: border-color 120ms ease, background 120ms ease, transform 120ms ease;
}

.button:not(:disabled):active {
  transform: translateY(1px);
}

.button-primary {
  color: white;
  background: var(--blue);
}

.button-primary:hover:not(:disabled) {
  background: var(--blue-dark);
}

.button-secondary {
  border-color: #b8c7d8;
  color: #284766;
  background: #f7fbff;
}

.button-secondary:hover:not(:disabled) {
  border-color: #7fa4c9;
  background: #eff7ff;
}

.button-accent {
  flex: 1;
  color: #053e43;
  background: #9ce6dc;
}

.button-accent:hover:not(:disabled) {
  background: #7dd8ce;
}

.button-ghost {
  border-color: #d4dbe4;
  color: #536275;
  background: white;
}

.button-ghost:hover:not(:disabled) {
  background: #f4f6f8;
}

.button-danger {
  border-color: #c84b58;
  color: white;
  background: #c84b58;
}

.button-danger:hover:not(:disabled) {
  border-color: #aa3340;
  background: #aa3340;
}

.button-full {
  width: 100%;
}

.file-button {
  position: relative;
  flex: 1;
  overflow: hidden;
}

.file-button input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.source-meta,
.status-line {
  margin-top: 10px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.image-import-hint {
  margin: 7px 2px 2px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.rotation-panel {
  margin-top: 14px;
  padding: 10px 11px;
  border: 1px solid #d5e0ea;
  border-radius: 9px;
  background: #f7fafc;
}

.rotation-panel summary {
  cursor: pointer;
  color: #23405d;
  font-size: 12px;
  font-weight: 750;
}

.rotation-panel.preview-active {
  border-color: #5c91d0;
  box-shadow: 0 0 0 3px rgb(92 145 208 / 10%);
}

.rotation-content {
  margin-top: 10px;
}

.rotation-help {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}

.rotation-range-row {
  display: grid;
  grid-template-columns: minmax(90px, 1fr) auto;
  align-items: center;
  gap: 8px;
}

.rotation-range-row input[type="range"] {
  width: 100%;
}

.rotation-number-field {
  display: grid;
  grid-template-columns: auto 62px auto;
  align-items: center;
  gap: 4px;
  height: 31px;
  padding: 0 7px;
  border: 1px solid #aebdcd;
  border-radius: 6px;
  color: #526174;
  background: white;
  font-size: 10px;
  cursor: text;
}

.rotation-number-field:focus-within {
  border-color: #1671d9;
  box-shadow: 0 0 0 2px rgb(22 113 217 / 14%);
}

.rotation-fine-input {
  width: 62px;
  min-width: 0;
  height: 27px;
  padding: 0 2px;
  border: 0;
  outline: 0;
  color: #24364b;
  background: transparent;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.rotation-total-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  margin-top: 5px;
  color: var(--muted);
  font-size: 10px;
}

.rotation-total-row output {
  min-width: 49px;
  color: #23405d;
  font-size: 11px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.rotation-grid-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  color: #526174;
  font-size: 11px;
}

.rotation-actions {
  border-top: 1px solid #e2e9ef;
  padding-top: 8px;
}

.geometry-diagnosis {
  margin-top: 8px;
  padding: 7px 8px;
  border: 1px solid #d9e1ea;
  border-radius: 7px;
  color: #657487;
  background: #ffffff;
  font-size: 10px;
  line-height: 1.45;
}

.geometry-diagnosis.corrected {
  border-color: #9ed6c4;
  color: #176448;
  background: #f0fbf6;
}

.geometry-diagnosis.review {
  border-color: #efc978;
  color: #865813;
  background: #fffaf0;
}

.rotation-confirm-dialog {
  width: min(440px, calc(100vw - 32px));
  padding: 22px;
  border: 1px solid #cad7e4;
  border-radius: 12px;
  color: #20344a;
  box-shadow: 0 18px 55px rgb(19 44 72 / 28%);
}

.rotation-confirm-dialog::backdrop {
  background: rgb(20 42 66 / 38%);
}

.rotation-confirm-dialog h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.rotation-confirm-dialog p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.axis-card {
  margin-top: 10px;
  padding: 11px;
  border: 1px solid #dce2e9;
  border-radius: 9px;
  background: #fafbfd;
}

.axis-card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 12px;
}

.saved-calibration-panel > button {
  width: 100%;
}

.saved-calibration-panel .field-label {
  margin-top: 0;
}

.compact-select {
  height: 27px;
  padding: 0 7px;
  font-size: 11px;
}

.calibration-row {
  display: grid;
  grid-template-columns: 1fr 118px;
  gap: 7px;
  margin-top: 7px;
}

.calibration-row input {
  min-width: 0;
  height: 33px;
  padding: 0 9px;
  font-size: 12px;
}

.metadata-input {
  width: 100%;
  height: 34px;
  margin-top: 8px;
  padding: 0 9px;
  border: 1px solid #cfd7e2;
  border-radius: 7px;
  color: #24364b;
  background: white;
  outline: none;
  font-size: 11px;
}

.metadata-input:focus {
  border-color: #5c91d0;
  box-shadow: 0 0 0 3px rgb(22 102 216 / 10%);
}

.series-name-input {
  margin-top: 0;
  margin-bottom: 8px;
}

.series-name-label {
  margin-bottom: 5px;
  color: #6b7889;
  font-size: 9px;
  letter-spacing: 0.025em;
  text-transform: none;
}

.pick-button {
  border: 1px solid #cbd6e2;
  border-radius: 6px;
  color: #33516e;
  background: white;
  font-size: 11px;
  font-weight: 650;
}

.pick-button.active {
  border-color: #1671d9;
  color: white;
  background: #1671d9;
}

.pick-button.selected:not(.active) {
  border-color: #d7264f;
  color: #9c2340;
  background: #fff1f4;
  box-shadow: 0 0 0 2px rgb(215 38 79 / 10%);
}

.pick-button.complete::before {
  content: "✓ ";
  color: #168b63;
}

.pick-button.active::before {
  color: white;
}

.pick-button.calibration-outlier:not(.active) {
  border-color: #db8c32;
  color: #8a5516;
  background: #fff7e9;
  box-shadow: 0 0 0 2px rgb(219 140 50 / 12%);
}

.calibration-refine,
.calibration-quality {
  margin-top: 9px;
  padding: 9px;
  border: 1px solid #d6e0e9;
  border-radius: 8px;
  background: #f7fafc;
}

.calibration-refine-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: #29445f;
  font-size: 10px;
}

.calibration-refine-heading span {
  color: #63768a;
  font-variant-numeric: tabular-nums;
}

.calibration-refine-controls {
  display: grid;
  grid-template-columns: 32px 38px minmax(70px, 1fr) 38px 32px;
  gap: 4px;
  align-items: end;
  margin-top: 7px;
}

.calibration-refine-controls button {
  height: 32px;
  padding: 0;
  border: 1px solid #bfcddd;
  border-radius: 6px;
  color: #31516f;
  background: white;
  font-size: 9px;
  font-weight: 700;
}

.calibration-refine-controls button:hover {
  border-color: #1769d1;
  color: #1769d1;
  background: #f2f7ff;
}

.calibration-refine-controls label {
  display: grid;
  gap: 2px;
  color: #738294;
  font-size: 8px;
  text-align: center;
}

#calibration-pixel-position {
  width: 100%;
  height: 32px;
  padding: 0 5px;
  border: 1px solid #bfcddd;
  border-radius: 6px;
  color: #263f57;
  background: white;
  font-size: 10px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.calibration-refine p {
  margin: 6px 0 0;
  color: #6f7f90;
  font-size: 8px;
  line-height: 1.45;
  text-align: center;
}

.calibration-quality {
  display: grid;
  gap: 4px;
  color: #5d7084;
  font-size: 9px;
  line-height: 1.45;
}

.calibration-quality.good {
  border-color: #a9d9c8;
  color: #246b55;
  background: #f3fbf8;
}

.calibration-quality.review {
  border-color: #e7c178;
  color: #805b18;
  background: #fffaf0;
}

.calibration-quality.poor {
  border-color: #e4a4aa;
  color: #9f3540;
  background: #fff7f8;
}

.seed-summary {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 30px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 10px;
}

.trace-option-details {
  margin-top: 8px;
  border: 1px solid #d7e0e9;
  border-radius: 8px;
  color: #526174;
  background: #fff;
}

.trace-option-details > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 35px;
  padding: 0 10px;
  color: #526174;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.trace-option-details > summary::-webkit-details-marker {
  display: none;
}

.trace-option-details > summary::before {
  flex: 0 0 auto;
  color: #7890a8;
  content: "›";
  font-size: 15px;
  line-height: 1;
  transform: rotate(0deg);
  transition: transform 140ms ease;
}

.trace-option-details[open] > summary::before {
  transform: rotate(90deg);
}

.trace-option-details > summary > span {
  margin-right: auto;
}

.trace-option-details > summary strong {
  overflow: hidden;
  color: #31516f;
  font-size: 9px;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.trace-option-details[open] > summary {
  border-bottom: 1px solid #e4e9ef;
}

.trace-option-details > :not(summary) {
  margin-right: 10px;
  margin-left: 10px;
}

.trace-option-details > input[type="range"] {
  width: calc(100% - 20px);
}

.trace-type-options {
  margin-bottom: 9px;
}

.trace-type-options .target-style-label {
  margin-top: 9px;
  color: #778596;
  font-size: 8px;
  letter-spacing: 0;
  text-transform: none;
}

.trace-type-options .target-style-select {
  margin-bottom: 10px;
}

.color-suggestions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  margin-bottom: 9px;
  padding: 8px 9px;
  border: 1px solid #d9e4ef;
  border-radius: 9px;
  background: #fbfdff;
}

.color-suggestions[hidden] {
  display: none;
}

.color-suggestions-copy strong,
.color-suggestions-copy small {
  display: block;
}

.color-suggestions-copy strong {
  color: #36516d;
  font-size: 9px;
}

.color-suggestions-copy small {
  margin-top: 2px;
  color: #7a8999;
  font-size: 7.5px;
  line-height: 1.35;
}

.color-suggestion-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 5px;
  max-width: 126px;
}

.color-suggestion-chip {
  width: 25px;
  height: 25px;
  padding: 3px;
  border: 1px solid #b7c6d7;
  border-radius: 50%;
  background: white;
  cursor: pointer;
  transition: border-color 120ms ease, box-shadow 120ms ease, transform 120ms ease;
}

.color-suggestion-chip:hover,
.color-suggestion-chip:focus-visible {
  border-color: #276ec4;
  box-shadow: 0 0 0 3px rgb(39 110 196 / 13%);
  outline: none;
  transform: translateY(-1px);
}

.color-suggestion-chip span {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgb(0 0 0 / 9%);
}

.trace-primary-action {
  padding: 11px;
  border: 1px solid #b8cde6;
  border-radius: 10px;
  background: linear-gradient(145deg, #f4f8ff, #f8fbff);
  box-shadow: 0 3px 12px rgb(24 89 165 / 6%);
}

.trace-primary-action.has-target {
  border-color: #9ed7c5;
  background: linear-gradient(145deg, #f2fbf7, #f8fcfa);
}

.trace-primary-copy {
  padding: 0 1px;
}

.trace-primary-copy strong,
.trace-primary-copy small {
  display: block;
}

.trace-primary-copy strong {
  color: #203d5b;
  font-size: 11px;
}

.trace-primary-copy small {
  margin-top: 3px;
  color: #6c7e90;
  font-size: 8px;
  line-height: 1.45;
}

.trace-primary-action #pick-seed {
  min-height: 41px;
  margin-top: 10px;
  box-shadow: 0 4px 10px rgb(22 102 216 / 16%);
}

.trace-primary-action #pick-seed.button-accent {
  color: #063e43;
  box-shadow: 0 4px 10px rgb(0 169 165 / 14%);
}

.trace-primary-action .seed-summary {
  padding-top: 8px;
  border-top: 1px solid rgb(108 137 166 / 18%);
}

.trace-refinement-tools {
  margin-top: 11px;
  padding-top: 10px;
  border-top: 1px solid #e2e8ee;
}

.trace-subsection-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.trace-subsection-heading strong {
  color: #354b63;
  font-size: 10px;
}

.trace-subsection-heading span {
  color: #8390a0;
  font-size: 8px;
  text-align: right;
}

.trace-refinement-actions {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 6px;
  margin-top: 7px;
}

.trace-refinement-actions .button {
  min-height: 31px;
  padding: 0 7px;
  font-size: 9px;
}

.trace-refinement-actions #exclude-trace {
  grid-column: 1 / -1;
}

.trace-current-actions {
  margin-top: 9px;
}

.trace-current-actions .button {
  flex: 1;
}

.guide-help {
  margin: 5px 1px 0;
  padding: 7px 8px;
  border-left: 3px solid #7da7d7;
  border-radius: 0 5px 5px 0;
  color: #687789;
  background: #f5f9fe;
  font-size: 9px;
  line-height: 1.5;
}

.strict-guide-toggle {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 8px;
  padding: 8px 9px;
  border: 1px solid #d8e0e8;
  border-radius: 7px;
  color: #405468;
  background: #fafbfd;
  cursor: pointer;
}

.strict-guide-toggle:has(input:checked) {
  border-color: #e5a346;
  background: #fff7e9;
}

.strict-guide-toggle input {
  margin: 2px 0 0;
}

.strict-guide-toggle strong,
.strict-guide-toggle small {
  display: block;
}

.strict-guide-toggle strong {
  font-size: 10px;
}

.strict-guide-toggle small {
  margin-top: 2px;
  color: #778493;
  font-size: 8px;
  line-height: 1.4;
}

.trace-assist-tools {
  margin: 9px 0 10px;
  padding: 8px 9px;
  border: 1px solid #d9e2eb;
  border-radius: 8px;
  color: #526174;
  background: #fbfcfe;
  font-size: 10px;
}

.trace-assist-tools > summary {
  color: #405468;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}

.trace-assist-tools[open] > summary {
  margin-bottom: 6px;
}

.trace-assist-hint {
  margin: 0;
  color: #748294;
  font-size: 9px;
  line-height: 1.45;
}

.trace-assist-tools .strict-guide-toggle {
  margin-top: 7px;
}

.trace-point-count-control {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 0;
  padding: 10px 0;
  border: 0;
  background: transparent;
}

.trace-point-count-control label strong,
.trace-point-count-control label span {
  display: block;
}

.trace-point-count-control label strong {
  color: #31505a;
  font-size: 11px;
}

.trace-point-count-control label span {
  margin-top: 3px;
  color: #7b8994;
  font-size: 8px;
}

.trace-point-count-control > div {
  display: flex;
  align-items: center;
  gap: 5px;
  color: #61727e;
  font-size: 10px;
}

#trace-point-count {
  width: 70px;
  height: 32px;
  padding: 0 7px;
  border: 1px solid #bfcfd6;
  border-radius: 6px;
  color: #183e49;
  background: white;
  font-size: 12px;
  font-weight: 750;
  text-align: right;
}

#trace-point-count:focus {
  border-color: #00a9a5;
  box-shadow: 0 0 0 3px rgb(0 169 165 / 10%);
  outline: none;
}

.save-series-button {
  margin-top: 9px;
}

.multi-series-hint {
  margin: 9px 1px 0;
  color: #748293;
  font-size: 9px;
  line-height: 1.5;
}

.series-list {
  display: grid;
  gap: 7px;
  margin-top: 10px;
}

.series-empty {
  padding: 10px;
  border: 1px dashed #d4dce6;
  border-radius: 7px;
  color: #8a95a3;
  font-size: 11px;
  text-align: center;
}

.series-item {
  display: grid;
  grid-template-columns: 9px minmax(0, 1fr);
  align-items: center;
  column-gap: 8px;
  row-gap: 5px;
  padding: 8px 9px;
  border: 1px solid #dce2e9;
  border-radius: 7px;
  background: #fafbfd;
}

.series-item.editing {
  border-color: #4f92d9;
  box-shadow: 0 0 0 2px rgb(22 102 216 / 8%);
}

.series-item.visible {
  background: #f1faf8;
}

.series-color {
  grid-row: 1 / span 2;
  width: 8px;
  height: 24px;
  border: 1px solid rgb(12 25 40 / 36%);
  border-radius: 4px;
  box-shadow: 0 0 0 1px white;
}

.series-copy {
  min-width: 0;
}

.series-copy strong,
.series-copy span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.series-copy strong {
  color: #2a3c51;
  font-size: 11px;
}

.series-copy span {
  margin-top: 2px;
  color: #7a8796;
  font-size: 9px;
}

.series-actions {
  display: flex;
  grid-column: 2;
  justify-content: flex-end;
  gap: 3px;
}

.series-actions button {
  height: 25px;
  padding: 0 6px;
  border: 1px solid #d1d9e2;
  border-radius: 5px;
  color: #56677b;
  background: white;
  font-size: 9px;
}

.seed-swatch {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 1px solid #cbd3dd;
  border-radius: 6px;
  background: linear-gradient(135deg, #edf0f4 25%, #fff 25%, #fff 50%, #edf0f4 50%, #edf0f4 75%, #fff 75%);
  background-size: 8px 8px;
  box-shadow: inset 0 0 0 2px white;
}

.range-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  color: #526174;
  font-size: 11px;
  font-weight: 650;
}

.trace-corridor-control {
  margin: 10px 0 11px;
  padding: 10px;
  border: 1px solid #bcdfe2;
  border-radius: 8px;
  background: #f2fbfb;
}

.trace-assist-tools .trace-corridor-control {
  margin-bottom: 1px;
}

.trace-corridor-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  color: #234052;
  font-size: 11px;
}

.trace-corridor-heading span {
  color: #557883;
  font-size: 9px;
  text-align: right;
}

.trace-corridor-control > p {
  margin: 6px 0 0;
  color: #667b85;
  font-size: 9px;
  line-height: 1.45;
}

.trace-corridor-actions {
  margin-top: 7px;
}

.trace-corridor-actions .button.active {
  border-color: #087f8c;
  color: #075c66;
  background: #d8f4f2;
}

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

.advanced-options {
  margin-top: 8px;
  color: #59687a;
  font-size: 11px;
}

.advanced-options summary {
  cursor: pointer;
  user-select: none;
}

.advanced-options > :last-child {
  margin-bottom: 10px;
}

.advanced-color-option {
  margin-top: 9px;
}

.adaptive-sampling-options {
  margin: 9px 0 11px;
  padding: 9px;
  border: 1px solid #d8e4e8;
  border-radius: 7px;
  background: #f6fbfc;
}

.adaptive-sampling-options .field-label {
  margin-top: 0;
}

.adaptive-sampling-options .select-control {
  margin-top: 6px;
}

.adaptive-sampling-options > p {
  margin: 6px 1px 0;
  color: #7a8895;
  font-size: 8px;
  line-height: 1.4;
}

.path-refinement-options {
  margin: 0 0 12px;
  padding: 9px;
  border: 1px solid #ddd9ef;
  border-radius: 7px;
  background: #faf9ff;
}

.path-refinement-options .field-label {
  margin-top: 0;
}

.path-refinement-options .select-control {
  margin-top: 6px;
}

.path-refinement-options p {
  margin: 6px 1px 0;
  color: #746f86;
  font-size: 8px;
  line-height: 1.45;
}

#peak-sampling-options[hidden] {
  display: none;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.metric-grid div {
  min-width: 0;
  padding: 9px;
  border: 1px solid #e0e5eb;
  border-radius: 7px;
  background: #fafbfd;
}

.metric-grid span,
.metric-grid strong {
  display: block;
}

.quality-status {
  margin-top: 9px;
  padding: 9px 10px;
  border: 1px solid;
  border-radius: 7px;
  font-size: 10px;
  line-height: 1.45;
}

.quality-status.empty {
  border-color: #dce2e9;
  color: #7d8998;
  background: #fafbfd;
}

.quality-status.good {
  border-color: #a6d9c8;
  color: #176647;
  background: #effaf6;
}

.quality-status.review {
  border-color: #efcb91;
  color: #805319;
  background: #fff9ed;
}

.quality-status.poor {
  border-color: #e5aab4;
  color: #8b2f43;
  background: #fff3f5;
}

.review-assistant {
  margin-top: 9px;
  padding: 10px;
  border: 1px solid #dce2e9;
  border-radius: 7px;
  background: #fafbfd;
}

.review-assistant[hidden] {
  display: none;
}

.review-assistant.review {
  border-color: #efcb91;
  background: #fff9ed;
}

.review-assistant.poor {
  border-color: #e5aab4;
  background: #fff3f5;
}

.review-assistant.good {
  border-color: #a6d9c8;
  background: #effaf6;
}

.review-assistant-heading,
.review-assistant-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.review-assistant-heading strong,
.review-assistant-heading span {
  display: block;
}

.review-assistant-heading strong {
  color: #27384c;
  font-size: 10px;
}

.review-assistant-heading div > span,
#review-region-count {
  margin-top: 2px;
  color: #7b8795;
  font-size: 8px;
}

#review-region-count {
  flex: none;
  margin: 0;
  font-weight: 750;
}

#review-region-status {
  margin: 7px 0 8px;
  color: #625d6f;
  font-size: 9px;
  line-height: 1.45;
}

.review-assistant-actions .button {
  min-height: 30px;
  padding: 0 10px;
  font-size: 9px;
}

.review-assistant-actions #review-resolve {
  flex: 1;
}

.export-density-label {
  margin-top: 12px;
}

.metric-grid span {
  margin-bottom: 4px;
  color: #7b8795;
  font-size: 10px;
}

.metric-grid strong {
  overflow: hidden;
  color: #22364b;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.workspace {
  position: relative;
  display: grid;
  grid-template-rows: 58px auto minmax(0, 1fr) 39px;
  min-width: 0;
  min-height: 0;
}

.workspace-toolbar,
.workspace-footer {
  display: flex;
  align-items: center;
  background: #fff;
}

.workspace-toolbar {
  grid-row: 1;
  justify-content: space-between;
  gap: 12px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
}

.workspace-toolbar > :first-child {
  min-width: 0;
}

.workspace-toolbar strong {
  display: block;
  color: #27384c;
  font-size: 13px;
}

.workspace-toolbar span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 11px;
}

#mode-hint {
  overflow: hidden;
  max-width: 270px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.workspace-toolbar-actions,
.history-control {
  display: flex;
  align-items: center;
}

.workspace-toolbar-actions {
  flex: 0 0 auto;
  gap: 8px;
}

.history-control {
  gap: 3px;
  padding: 2px;
  border: 1px solid #e1e7ee;
  border-radius: 8px;
  background: #f8fafc;
}

.history-control #autosave-status {
  overflow: hidden;
  width: 60px;
  margin: 0 1px 0 3px;
  color: #748397;
  font-size: 9px;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.restart-session-button {
  min-width: 62px;
  border-color: #e3c28e;
  color: #805b20;
  background: #fffaf1;
}

.restart-session-button:hover:not(:disabled) {
  border-color: #cf9950;
  color: #6c4510;
  background: #fff4df;
}

.zoom-control {
  display: flex;
  align-items: center;
  gap: 5px;
}

.zoom-control input {
  width: 96px;
}

.zoom-control output {
  width: 36px;
  color: #637184;
  font-size: 11px;
  text-align: right;
}

.icon-button {
  flex: 0 0 auto;
  height: 29px;
  padding: 0 8px;
  border: 1px solid #d2d9e2;
  border-radius: 6px;
  color: #506176;
  background: #fff;
  font-size: 11px;
  white-space: nowrap;
}

.canvas-scroller {
  grid-row: 3;
  position: relative;
  overflow: auto;
  min-width: 0;
  min-height: 0;
  padding: 30px;
  background-color: var(--canvas);
  background-image:
    linear-gradient(45deg, rgb(255 255 255 / 22%) 25%, transparent 25%),
    linear-gradient(-45deg, rgb(255 255 255 / 22%) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgb(255 255 255 / 22%) 75%),
    linear-gradient(-45deg, transparent 75%, rgb(255 255 255 / 22%) 75%);
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-size: 16px 16px;
}

.canvas-stage {
  position: relative;
  display: inline-block;
  min-width: 100%;
  min-height: 100%;
  text-align: center;
}

.plot-surface {
  position: relative;
  display: inline-block;
  overflow: hidden;
  border-radius: 2px;
  background: white;
  box-shadow: var(--shadow), 0 0 0 1px rgb(65 80 100 / 12%);
  contain: paint;
  vertical-align: top;
}

#plot-image-canvas {
  display: block;
  pointer-events: none;
}

#plot-canvas {
  position: absolute;
  inset: 0;
  display: block;
  background: transparent;
  touch-action: none;
}

#plot-canvas:focus-visible {
  outline: 2px solid #1666d8;
  outline-offset: -3px;
}

#plot-canvas.mode-active {
  cursor: crosshair;
}

#plot-canvas.corridor-mode {
  cursor: none;
}

#plot-canvas.point-hover {
  cursor: grab;
}

#plot-canvas.point-dragging {
  cursor: grabbing;
}

#plot-canvas.guide-hover {
  cursor: move;
}

#plot-canvas.guide-dragging {
  cursor: grabbing;
}

.inspector-stack {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  align-content: start;
  justify-items: stretch;
  gap: 9px;
  min-width: 0;
  min-height: 0;
  padding: 14px;
  overflow: hidden;
  border-left: 1px solid var(--line);
  background: #f8fafc;
}

.magnifier-window {
  width: 100%;
  padding: 11px;
  border: 1px solid #d8e0e8;
  border-radius: 9px;
  background: #fff;
  box-shadow: 0 4px 14px rgb(30 45 65 / 7%);
  pointer-events: none;
}

.data-point-window {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 108px;
  max-height: none;
  padding: 10px;
  overflow: hidden;
  border: 1px solid #d8e0e8;
  border-radius: 9px;
  background: #fff;
  box-shadow: 0 4px 14px rgb(30 45 65 / 7%);
}

.data-point-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 6px;
  color: #33475d;
  font-size: 11px;
}

.data-point-heading strong,
.data-point-heading span {
  display: block;
}

.data-point-heading div > span,
.data-point-heading > span,
.data-point-window > p {
  color: #7b8997;
  font-size: 8px;
}

.data-point-heading div > span {
  margin-top: 2px;
}

.data-point-heading-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 4px;
}

#clear-all-points {
  height: 24px;
  padding: 0 7px;
  border: 1px solid #e0a7ad;
  border-radius: 5px;
  color: #a23b47;
  background: #fff7f8;
  font-size: 9px;
}

#clear-all-points:hover:not(:disabled) {
  color: white;
  background: #d1495b;
}

#clear-all-points:disabled {
  opacity: 0.45;
}

.data-point-columns,
.data-point-row {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) minmax(0, 1fr) 21px;
  gap: 3px;
  align-items: center;
}

.data-point-columns {
  margin-top: 8px;
  padding: 0 4px 4px;
  border-bottom: 1px solid #dfe5eb;
  color: #536578;
  font-size: 9px;
}

.point-list {
  display: grid;
  flex: 1;
  align-content: start;
  gap: 2px;
  min-height: 0;
  max-height: none;
  padding: 4px 1px;
  overflow-y: auto;
}

.point-list-empty {
  padding: 16px 7px;
  color: #8a95a3;
  font-size: 9px;
  text-align: center;
}

.data-point-row {
  padding: 3px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: white;
  font-variant-numeric: tabular-nums;
}

.data-point-row:hover,
.data-point-row.selected,
.data-point-row.dragging {
  border-color: #d7264f;
  background: #ffecef;
  box-shadow: inset 3px 0 #d7264f;
}

.data-point-row.guide-point {
  border-left-color: #e18a20;
  background: #fffaf0;
}

.data-point-row.inferred-point:not(.guide-point) {
  border-left-color: #d49a35;
  background: #fffaf0;
}

.data-point-row.review-point:not(.guide-point) {
  border-color: #e4a33b;
  background: #fff5df;
  box-shadow: inset 3px 0 #e4a33b;
}

.data-point-row.review-point.selected,
.data-point-row.review-point:hover {
  border-color: #d7264f;
  background: #ffecef;
  box-shadow: inset 3px 0 #d7264f;
}

.data-point-row.guide-point:hover,
.data-point-row.guide-point.selected,
.data-point-row.guide-point.dragging {
  border-color: #c65316;
  background: #fff0df;
  box-shadow: inset 3px 0 #c65316;
}

.point-list-index {
  overflow: hidden;
  color: #718094;
  font-size: 8px;
  font-weight: 750;
  text-align: right;
  text-overflow: ellipsis;
}

.point-coordinate-input {
  min-width: 0;
  width: 100%;
  height: 27px;
  padding: 0 4px;
  border: 1px solid #d8e0e7;
  border-radius: 4px;
  color: #253d55;
  background: #fff;
  font-size: 9px;
}

.point-coordinate-input:focus {
  border-color: #d7264f;
  box-shadow: 0 0 0 2px rgb(215 38 79 / 14%);
  outline: none;
}

.point-delete-button {
  width: 21px;
  height: 23px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  color: #a34a52;
  background: transparent;
  font-size: 14px;
  line-height: 1;
}

.point-delete-button:hover {
  color: white;
  background: #d1495b;
}

.data-point-window > p {
  margin: 4px 2px 0;
  line-height: 1.35;
}

.magnifier-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 6px;
  margin-bottom: 7px;
  color: #33475d;
  font-size: 10px;
}

.magnifier-heading span {
  color: #718094;
  font-size: 9px;
  line-height: 1.35;
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: pre-line;
}

#magnifier-canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  border: 1px solid #aeb9c6;
  border-radius: 4px;
  background: #f0f3f6;
  image-rendering: pixelated;
}

.magnifier-hint {
  margin-top: 5px;
  color: #8591a0;
  font-size: 8px;
  text-align: center;
}

.empty-state {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #718094;
  font-size: 13px;
  pointer-events: none;
}

.workspace-footer {
  grid-row: 4;
  gap: 18px;
  padding: 0 18px;
  border-top: 1px solid var(--line);
  color: #69778a;
  font-size: 10px;
}

.trace-workspace-status {
  grid-row: 2;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border-bottom: 1px solid #e5b76b;
  background: #fff5e7;
  color: #794718;
  font-size: 12px;
}

.trace-workspace-status > div { flex: 1; min-width: 0; }
.trace-workspace-status p { margin: 4px 0; overflow-wrap: anywhere; }
.trace-workspace-status button { flex: 0 0 auto; width: auto; }
.point-list-stale { padding: 6px; color: #794718; background: #fff5e7; }
.point-list[inert] { opacity: 0.55; }

.legend-item {
  display: flex;
  align-items: center;
  gap: 7px;
}

.legend-box {
  display: inline-block;
  width: 18px;
  height: 10px;
  border: 1px solid;
}

.legend-box.excluded {
  border-color: #d1495b;
  background: rgb(209 73 91 / 13%);
}

.legend-point {
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 2px solid white;
  border-radius: 50%;
  background: #ef8b2c;
  box-shadow: 0 0 0 1px #b95817;
}

.legend-point.sampled {
  width: 9px;
  height: 9px;
  border: 2px solid #111;
  background: white;
  box-shadow: none;
}

.legend-point.inferred {
  width: 9px;
  height: 9px;
  border: 1px dashed #8b5a13;
  background: #ffd884;
  box-shadow: none;
}

.legend-guide {
  width: 9px;
  height: 9px;
  border: 2px solid white;
  background: #f09a2a;
  box-shadow: 0 0 0 1px #7b4307;
  transform: rotate(45deg);
}

.cursor-readout {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
}

.image-drop-overlay {
  position: fixed;
  z-index: 1200;
  inset: 72px 0 0;
  display: grid;
  place-items: center;
  padding: 32px;
  background: rgb(16 49 80 / 48%);
  backdrop-filter: blur(2px);
  pointer-events: none;
}

.image-drop-overlay > div {
  display: grid;
  gap: 7px;
  min-width: 360px;
  padding: 28px 42px;
  border: 3px dashed rgb(255 255 255 / 88%);
  border-radius: 18px;
  color: white;
  background: rgb(15 73 132 / 92%);
  box-shadow: 0 20px 60px rgb(9 27 47 / 35%);
  text-align: center;
}

.image-drop-overlay strong {
  font-size: 22px;
}

.image-drop-overlay span {
  font-size: 13px;
  opacity: 0.9;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 10;
  max-width: 390px;
  padding: 11px 15px;
  border-radius: 8px;
  color: white;
  background: #20344a;
  box-shadow: 0 10px 30px rgb(0 0 0 / 22%);
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 160ms ease, transform 160ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-height: 760px) {
  .panel-section {
    padding-top: 17px;
    padding-bottom: 18px;
  }
}

@media (max-width: 1360px) {
  .app-shell {
    grid-template-columns: 320px minmax(540px, 1fr) 250px;
  }
}