.firmware-mode-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 30px;
}

.firmware-mode-picker button {
  display: grid;
  justify-items: start;
  min-height: 138px;
  padding: 22px;
  border-radius: 4px;
  text-align: left;
}

.firmware-mode-picker button.active {
  background: #1d1d1f;
  border-color: #1d1d1f;
  color: #fff;
}

.firmware-mode-picker span {
  color: var(--link);
  font-family: var(--font-body);
  font-size: 11px;
  text-transform: uppercase;
}

.firmware-mode-picker button.active span { color: #fff; }
.firmware-mode-picker strong { margin-top: 10px; font-size: 20px; }
.firmware-mode-picker button.active strong { color: #fff; }
.firmware-mode-picker small { margin-top: 5px; color: var(--muted); font-size: 11px; }
.firmware-mode-picker button.active small { color: #b7b7b7; }

.firmware-workflow[hidden] { display: none !important; }

.workflow-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  margin: 0 0 12px;
  padding: 15px 18px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--faint);
}

.workflow-label span { font-weight: 600; }
.workflow-label p { color: var(--muted); font-size: 11px; }

.tdoa-lab {
  --tdoa-bg: #090909;
  --tdoa-panel: #111;
  --tdoa-panel-2: #181818;
  --tdoa-line: rgba(255, 255, 255, 0.1);
  --tdoa-muted: #999;
  --tdoa-primary: #fff;
  --tdoa-light: #f7f7f7;
  --tdoa-secondary: #aaa;
  width: 100vw;
  margin: 74px calc(50% - 50vw) 0;
  padding: clamp(44px, 7vw, 88px) max(16px, calc((100vw - 1120px) / 2));
  background:
    radial-gradient(circle at 76% 4%, rgba(255, 255, 255, 0.06), transparent 28%),
    radial-gradient(circle at 12% 26%, rgba(255, 255, 255, 0.07), transparent 24%),
    var(--tdoa-bg);
  color: #f7f7f7;
  overflow: hidden;
}

.location-dimension-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.location-dimension-picker label {
  position: relative;
  cursor: pointer;
}

.location-dimension-picker input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.location-dimension-picker span {
  display: grid;
  padding: 17px 19px;
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.025);
  transition: border-color 120ms, background 120ms;
}

.location-dimension-picker input:checked + span {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.09);
}

.location-dimension-picker strong { font-size: 14px; }
.location-dimension-picker small { margin-top: 3px; color: var(--tdoa-muted); font-size: 10px; }

.location-flash {
  margin-bottom: 14px;
  padding: 25px;
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  background: var(--tdoa-panel);
}

.location-flash-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 18px;
}

.location-flash-head h3,
.location-calibration h3 {
  margin: 4px 0 0;
  font-size: 21px;
}

.location-flash-head p {
  max-width: 520px;
  color: var(--tdoa-muted);
  font-size: 10px;
}

.location-flash-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.location-flash-grid article {
  min-height: 0;
  padding: 20px;
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.025);
}

.location-flash-grid h3 { margin: 5px 0 7px; font-size: 15px; }
.location-flash-grid p { color: var(--tdoa-muted); font-size: 10px; }
.location-flash-grid article > button,
.location-tag-actions { margin-top: 14px; }

.location-role-select {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  color: var(--tdoa-muted);
  font-size: 10px;
}

.location-role-select select {
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  background: #111;
  color: #fff;
  padding: 8px 10px;
  font: 11px var(--font-body);
}

.location-tag-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.location-flash-progress {
  height: 3px;
  margin: 15px 0 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.location-flash-progress div {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--tdoa-primary);
  transition: width 120ms linear;
}

.location-flash-grid article > small {
  display: block;
  color: var(--tdoa-muted);
  font-family: var(--font-body);
  font-size: 8px;
}

.location-calibration {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(380px, 0.85fr);
  gap: 24px;
  margin-top: 14px;
  padding: 25px;
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
}

.location-calibration p {
  max-width: 620px;
  margin-top: 9px;
  color: var(--tdoa-muted);
  font-size: 10px;
}

.location-cal-inputs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
}

.location-cal-inputs label { color: var(--tdoa-muted); font-size: 9px; }
.location-cal-inputs label span { display: flex; align-items: center; gap: 4px; margin-top: 4px; }
.location-cal-actions { grid-column: 2; display: flex; align-items: center; gap: 12px; }
.location-cal-actions span { color: var(--tdoa-muted); font-family: var(--font-body); font-size: 8px; }

.tdoa-lab h2,
.tdoa-lab h3,
.tdoa-lab strong {
  color: inherit;
}

.tdoa-lab button {
  border-color: rgba(255, 255, 255, 0.18);
  color: #f7f7f7;
  min-height: 38px;
  padding: 7px 14px;
  font-size: 12px;
}

.tdoa-lab button:hover:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.tdoa-lab button.active {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.55);
  color: var(--tdoa-primary);
}

.tdoa-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 34px;
  margin-bottom: 32px;
}

.tdoa-kicker,
.tdoa-step {
  font-family: var(--font-body);
  color: var(--tdoa-muted);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tdoa-kicker span {
  display: inline-flex;
  padding: 3px 8px;
  margin-right: 8px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 4px;
  color: var(--tdoa-primary);
}

.tdoa-hero h2 {
  max-width: 760px;
  margin-top: 15px;
  font-size: clamp(36px, 5.6vw, 70px);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.tdoa-hero p {
  max-width: 710px;
  margin-top: 20px;
  color: var(--tdoa-muted);
  font-size: 16px;
}

.tdoa-hero-stat {
  display: grid;
  min-width: 178px;
  padding: 22px;
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.035);
}

.tdoa-hero-stat strong {
  font-family: var(--font-body);
  font-size: 35px;
  line-height: 1;
}

.tdoa-hero-stat span {
  margin-top: 10px;
  color: var(--tdoa-muted);
  font-size: 11px;
}

.tdoa-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(330px, 0.72fr);
  min-height: 660px;
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--tdoa-panel);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.35);
}

.tdoa-viewport-wrap {
  position: relative;
  min-width: 0;
  min-height: 540px;
  background: #080808;
  overflow: hidden;
}

.tdoa-viewport {
  position: absolute;
  inset: 0;
}

.tdoa-viewport canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
}

.tdoa-viewport canvas:active {
  cursor: grabbing;
}

.tdoa-view-overlay {
  position: absolute;
  top: 18px;
  left: 18px;
  right: 18px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  pointer-events: none;
}

.tdoa-live-pill,
.tdoa-legend {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(12px);
  color: #ccc;
  font-family: var(--font-body);
  font-size: 10px;
}

.tdoa-live-pill i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--tdoa-primary);
  box-shadow: 0 0 12px var(--tdoa-primary);
}

.tdoa-legend {
  flex-wrap: wrap;
  justify-content: flex-end;
  border-radius: 4px;
}

.tdoa-legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.tdoa-legend i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--tdoa-light);
}

.tdoa-legend i.master { background: var(--tdoa-primary); }
.tdoa-legend i.truth { background: #fff; }
.tdoa-legend i.estimate { background: var(--tdoa-secondary); }

.tdoa-view-actions {
  position: absolute;
  left: 18px;
  bottom: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tdoa-view-actions button {
  background: rgba(5, 7, 11, 0.72);
  backdrop-filter: blur(12px);
}

.tdoa-controls {
  padding: 25px;
  border-left: 1px solid var(--tdoa-line);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.035), transparent 54%);
  overflow: auto;
}

.tdoa-control-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.tdoa-control-head h3 {
  margin: 3px 0 0;
  font-size: 16px;
}

.tdoa-control-head button {
  min-height: 32px;
  white-space: nowrap;
}

.tdoa-room-inputs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 16px;
}

.tdoa-room-inputs label {
  color: var(--tdoa-muted);
  font-size: 10px;
}

.tdoa-room-inputs label > span {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 5px;
  color: var(--tdoa-muted);
  font-family: var(--font-body);
}

.tdoa-lab input[type="number"] {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  outline: 0;
  background: rgba(0, 0, 0, 0.22);
  color: #fff;
  padding: 8px;
  font-family: var(--font-body);
  font-size: 12px;
}

.tdoa-lab input[type="number"]:focus {
  border-color: rgba(255, 255, 255, 0.75);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.tdoa-divider {
  height: 1px;
  margin: 22px 0;
  background: var(--tdoa-line);
}

.tdoa-grade {
  white-space: nowrap;
  padding: 4px 8px;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 9px;
}

.tdoa-grade.good {
  background: rgba(255, 255, 255, 0.11);
  color: var(--tdoa-primary);
}

.tdoa-grade.fair {
  background: rgba(255, 190, 55, 0.12);
  color: #ffc95c;
}

.tdoa-grade.poor {
  background: rgba(255, 79, 111, 0.12);
  color: #ff718a;
}

.tdoa-control-note {
  margin: 11px 0 14px;
  color: var(--tdoa-muted);
  font-size: 10px;
  line-height: 1.5;
}

.tdoa-anchor-table {
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  overflow: hidden;
}

.tdoa-anchor-row {
  display: grid;
  grid-template-columns: minmax(94px, 1fr) repeat(3, 56px);
  align-items: center;
  gap: 6px;
  min-height: 43px;
  padding: 5px 8px;
  border-top: 1px solid var(--tdoa-line);
}

.tdoa-anchor-row:first-child,
.tdoa-anchor-row.heading + #tdoa-anchor-rows .tdoa-anchor-row:first-child {
  border-top: 0;
}

.tdoa-anchor-row.heading {
  min-height: 30px;
  border: 0;
  background: rgba(255, 255, 255, 0.035);
  color: var(--tdoa-muted);
  font-family: var(--font-body);
  font-size: 9px;
}

.tdoa-anchor-name {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-body);
  font-size: 11px;
}

.tdoa-anchor-name i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--tdoa-light);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.35);
}

.tdoa-anchor-name.master i {
  background: var(--tdoa-primary);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.48);
}

.tdoa-anchor-name small {
  color: var(--tdoa-muted);
  font-size: 8px;
}

.tdoa-anchor-row input[type="number"] {
  padding: 6px;
  border-radius: 4px;
  font-size: 10px;
}

.tdoa-geometry-readout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.tdoa-geometry-readout div {
  min-width: 0;
  padding: 10px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.035);
}

.tdoa-geometry-readout span,
.tdoa-geometry-readout strong {
  display: block;
}

.tdoa-geometry-readout span {
  overflow: hidden;
  color: var(--tdoa-muted);
  font-size: 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tdoa-geometry-readout strong {
  margin-top: 4px;
  font-family: var(--font-body);
  font-size: 13px;
}

.tdoa-workflow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 1px 0 0;
  background: var(--tdoa-line);
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  overflow: hidden;
}

.tdoa-workflow article {
  min-height: 0;
  border-radius: 0;
  background: var(--tdoa-panel);
  padding: 24px;
}

.tdoa-workflow h3 {
  margin: 9px 0 7px;
  font-size: 14px;
}

.tdoa-workflow p {
  color: var(--tdoa-muted);
  font-size: 11px;
}

.tdoa-accuracy {
  margin-top: 42px;
}

.tdoa-accuracy-head {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 19px;
}

.tdoa-accuracy-head h3 {
  margin: 5px 0 8px;
  font-size: clamp(26px, 4vw, 42px);
  letter-spacing: -0.03em;
}

.tdoa-accuracy-head p {
  max-width: 690px;
  color: var(--tdoa-muted);
  font-size: 11px;
}

.tdoa-accuracy-head code {
  color: #dedede;
}

.tdoa-bench-actions {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: flex-end;
  gap: 8px;
}

.tdoa-bench-actions button:first-of-type {
  background: var(--tdoa-primary);
  border-color: var(--tdoa-primary);
  color: #101010;
}

.tdoa-metrics {
  display: grid;
  grid-template-columns: 1.25fr repeat(5, minmax(0, 1fr));
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  overflow: hidden;
}

.tdoa-metrics > div {
  min-width: 0;
  padding: 18px 15px;
  border-left: 1px solid var(--tdoa-line);
  background: rgba(255, 255, 255, 0.025);
}

.tdoa-metrics > div:first-child {
  border-left: 0;
}

.tdoa-metrics > div.primary {
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.025));
}

.tdoa-metrics span,
.tdoa-metrics small,
.tdoa-metrics strong {
  display: block;
}

.tdoa-metrics span,
.tdoa-metrics small {
  overflow: hidden;
  color: var(--tdoa-muted);
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tdoa-metrics strong {
  margin: 7px 0 3px;
  font-family: var(--font-body);
  font-size: clamp(19px, 2.3vw, 29px);
  line-height: 1;
}

.tdoa-metrics .primary strong {
  color: var(--tdoa-primary);
}

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

.tdoa-charts article {
  min-width: 0;
  min-height: 0;
  padding: 18px;
  border: 1px solid var(--tdoa-line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.025);
}

.tdoa-chart-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.tdoa-chart-head h3 {
  margin: 0;
  font-size: 13px;
}

.tdoa-chart-head span {
  color: var(--tdoa-muted);
  font-family: var(--font-body);
  font-size: 8px;
}

.tdoa-charts canvas {
  display: block;
  width: 100%;
  height: 230px;
}

.tdoa-import-status {
  margin-top: 11px;
  color: var(--tdoa-muted);
  font-family: var(--font-body);
  font-size: 9px;
}

.tdoa-import-status.error {
  color: #ff718a;
}

.tdoa-method {
  margin-top: 24px;
  border-top: 1px solid var(--tdoa-line);
  border-bottom: 1px solid var(--tdoa-line);
}

.tdoa-method summary {
  padding: 17px 0;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
}

.tdoa-method > div {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px;
  padding: 0 0 20px;
}

.tdoa-method p {
  color: var(--tdoa-muted);
  font-size: 10px;
}

.tdoa-method a {
  color: var(--tdoa-light);
}

@media (max-width: 900px) {
  .location-calibration {
    grid-template-columns: 1fr;
  }

  .location-cal-actions { grid-column: 1; }

  .tdoa-stage {
    grid-template-columns: 1fr;
  }

  .tdoa-controls {
    border-top: 1px solid var(--tdoa-line);
    border-left: 0;
  }

  .tdoa-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .tdoa-metrics > div:nth-child(4) {
    border-left: 0;
  }

  .tdoa-metrics > div:nth-child(n + 4) {
    border-top: 1px solid var(--tdoa-line);
  }
}

@media (max-width: 700px) {
  .firmware-mode-picker,
  .location-dimension-picker,
  .location-flash-grid {
    grid-template-columns: 1fr;
  }

  .workflow-label,
  .location-flash-head {
    display: block;
  }

  .workflow-label p,
  .location-flash-head p { margin-top: 6px; }

  .location-cal-inputs { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .tdoa-lab {
    padding-inline: 16px;
  }

  .tdoa-hero,
  .tdoa-accuracy-head {
    display: block;
  }

  .tdoa-hero-stat {
    display: inline-grid;
    margin-top: 22px;
  }

  .tdoa-viewport-wrap {
    min-height: 500px;
  }

  .tdoa-view-overlay {
    display: block;
  }

  .tdoa-legend {
    display: none;
  }

  .tdoa-workflow,
  .tdoa-charts,
  .tdoa-method > div {
    grid-template-columns: 1fr;
  }

  .tdoa-bench-actions {
    justify-content: flex-start;
    margin-top: 17px;
  }
}

@media (max-width: 480px) {
  .location-flash,
  .location-calibration { padding: 18px; }

  .location-cal-inputs { grid-template-columns: 1fr; }

  .tdoa-controls {
    padding: 18px;
  }

  .tdoa-room-inputs {
    grid-template-columns: 1fr;
  }

  .tdoa-anchor-row {
    grid-template-columns: minmax(82px, 1fr) repeat(3, 48px);
    padding-inline: 6px;
  }

  .tdoa-geometry-readout {
    grid-template-columns: 1fr;
  }

  .tdoa-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tdoa-metrics > div:nth-child(odd) {
    border-left: 0;
  }

  .tdoa-metrics > div:nth-child(n + 3) {
    border-top: 1px solid var(--tdoa-line);
  }
}

@media (prefers-reduced-motion: reduce) {
  .tdoa-lab *,
  .tdoa-lab *::before,
  .tdoa-lab *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}