:root {
  --bg: #f4f7fb;
  --panel: #ffffff;
  --ink: #111827;
  --muted: #667085;
  --line: #d9e2ef;
  --blue: #1f6feb;
  --green: #0f9f6e;
  --amber: #b7791f;
  --red: #c2410c;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 40px;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.topbar h1 {
  margin: 8px 0 10px;
  font-size: 30px;
  line-height: 1.2;
}

.topbar p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.eyebrow,
.panel-head span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

nav a,
.primary,
.secondary {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 16px;
  font-weight: 800;
}

nav a.active {
  color: #ffffff;
  border-color: var(--blue);
  background: var(--blue);
}

nav a,
.secondary {
  border: 1px solid var(--line);
  background: #ffffff;
}

nav a[hidden] {
  display: none;
}

.primary {
  border: 0;
  color: #ffffff;
  background: var(--blue);
  cursor: pointer;
}

.secondary {
  color: #334155;
  cursor: pointer;
}

main {
  padding: 24px 40px 40px;
}

.summary-grid,
.workspace,
.bottom-grid,
.student-grid,
.portal-grid {
  display: grid;
  gap: 18px;
}

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

.portal-card {
  display: block;
  min-height: 220px;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.portal-card span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.portal-card h2 {
  margin: 14px 0 10px;
  font-size: 26px;
}

.portal-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.summary-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin-bottom: 18px;
}

.summary-card,
.panel {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.summary-card {
  padding: 18px;
}

.summary-card span,
.metric-list span,
.device-card span,
.form-grid span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.summary-card strong {
  display: block;
  margin-top: 8px;
  font-size: 24px;
}

.workspace {
  grid-template-columns: minmax(0, 1fr) 360px;
}

.student-grid {
  grid-template-columns: minmax(280px, 0.85fr) minmax(360px, 1fr) 360px;
}

.bottom-grid {
  grid-template-columns: minmax(360px, 0.95fr) minmax(420px, 1.05fr);
  margin-top: 18px;
}

.panel {
  overflow: hidden;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  background: #f9fbff;
}

.panel-head h2 {
  margin: 6px 0 0;
  font-size: 18px;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 18px;
}

.device-card {
  min-height: 178px;
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid #e2e8f0;
  border-left: 5px solid var(--green);
  border-radius: 14px;
  background: #ffffff;
  text-align: left;
  cursor: pointer;
}

.device-card.is-busy {
  border-left-color: var(--blue);
}

.device-card.is-warning {
  border-left-color: var(--amber);
  background: #fffbeb;
}

.device-card.is-offline {
  border-left-color: #94a3b8;
  opacity: 0.72;
}

.device-card.is-selected {
  outline: 3px solid rgba(31, 111, 235, 0.22);
}

.device-card strong {
  font-size: 17px;
}

.device-card em {
  width: fit-content;
  border-radius: 999px;
  padding: 5px 8px;
  color: #075985;
  background: #e0f2fe;
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.device-card dl,
.metric-list,
.form-grid {
  display: grid;
  gap: 10px;
}

.device-card dl {
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
}

.device-card dd {
  margin: 4px 0 0;
  font-weight: 900;
}

.detail-panel {
  min-height: 520px;
}

.dog-preview {
  margin: 18px;
  border: 1px solid #dbe5f1;
  border-radius: 16px;
  background: linear-gradient(180deg, #edf5ff, #ffffff);
  overflow: hidden;
}

.dog-preview img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.structure-note {
  margin: -4px 18px 16px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.lesson-video {
  margin: 18px;
  border: 1px solid #dbe5f1;
  border-radius: 16px;
  background: #0f172a;
  overflow: hidden;
}

.lesson-video video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #0f172a;
}

.lesson-steps,
.rule-list {
  display: grid;
  gap: 10px;
  padding: 0 18px 18px;
}

.lesson-steps div,
.rule-list div {
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 14px;
  background: #ffffff;
}

.lesson-steps span {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: #ffffff;
  background: var(--blue);
  font-size: 12px;
  font-weight: 900;
}

.lesson-steps strong,
.rule-list strong {
  display: block;
  margin-top: 8px;
}

.lesson-steps p,
.rule-list p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.metric-list {
  padding: 0 18px 18px;
}

.metric-list div {
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 12px;
}

.metric-list strong {
  display: block;
  margin-top: 6px;
}

.safety-control {
  display: grid;
  gap: 12px;
  margin: 0 18px 18px;
  padding: 14px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #f8fafc;
}

.safety-confirm {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  color: #334155;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.45;
}

.safety-confirm input {
  margin-top: 2px;
}

.safety-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.safety-actions button {
  min-height: 38px;
  border-radius: 6px;
}

.danger {
  border: 0;
  color: #ffffff;
  background: #dc2626;
  cursor: pointer;
  font-weight: 900;
}

.controlled-stop {
  border: 1px solid #d97706;
  color: #92400e;
  background: #fffbeb;
  cursor: pointer;
  font-weight: 900;
}

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

.safety-result {
  margin: 0;
  color: #475569;
  font-size: 12px;
  line-height: 1.5;
}

.form-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 18px;
}

.form-grid label {
  display: grid;
  gap: 7px;
}

.form-grid input,
.form-grid select {
  min-height: 42px;
  width: 100%;
  border: 1px solid #d1d9e6;
  border-radius: 12px;
  padding: 0 12px;
  background: #ffffff;
}

.form-grid .primary,
.form-grid .form-wide,
.form-note {
  grid-column: 1 / -1;
}

.form-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.log-list {
  display: grid;
  gap: 8px;
  max-height: 280px;
  overflow: auto;
  margin: 0 18px 18px;
  padding: 14px;
  border-radius: 14px;
  background: #0f172a;
}

.log-list code {
  color: #c7d2fe;
  font-size: 13px;
}

@media (max-width: 1180px) {
  .summary-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .workspace,
  .bottom-grid,
  .student-grid,
  .portal-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 22px;
  }

  main {
    padding: 18px;
  }

  .summary-grid,
  .device-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }
}

/* Student console */
.student-console-page {
  --console-bg: #f3f6fa;
  --console-border: #dce5ef;
  --console-soft: #f8fbff;
}

.console-topbar {
  min-height: 58px;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--console-border);
  background: rgba(255, 255, 255, 0.96);
}

.console-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 34px;
  border-radius: 10px;
  color: #ffffff;
  background: #111827;
  font-size: 12px;
  font-weight: 900;
}

.console-brand strong {
  font-size: 22px;
}

.course-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  color: #334155;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
}

.course-strip span {
  position: relative;
}

.course-strip span + span::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 2px;
  width: 1px;
  height: 14px;
  background: #d8e1ec;
}

.progress-label b {
  color: #1f6feb;
}

.online-dot::before,
.run-status::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 6px;
  border-radius: 999px;
  background: #10a66e;
}

.student-console {
  padding: 10px;
}

.student-console .summary-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 10px;
}

.student-console .summary-card {
  border-radius: 8px;
  padding: 10px 12px;
  box-shadow: none;
}

.student-console .summary-card strong {
  font-size: 17px;
}

.student-main-grid {
  display: grid;
  grid-template-columns: 320px 310px minmax(440px, 1fr) 360px;
  gap: 8px;
  align-items: stretch;
}

.console-panel {
  border: 1px solid var(--console-border);
  border-radius: 6px;
  background: #ffffff;
  overflow: hidden;
  box-shadow: none;
}

.console-panel-head {
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--console-border);
  background: #fbfdff;
}

.console-panel-head h2 {
  margin: 0;
  color: #111827;
  font-size: 15px;
}

.console-panel-head span {
  color: #64748b;
  font-size: 12px;
}

.panel-window-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  min-width: 0;
}

.window-drag-handle {
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.window-drag-handle:active,
.is-window-dragging .window-drag-handle {
  cursor: grabbing;
}

.window-reset-btn[hidden] {
  display: none;
}

.window-popout-btn[aria-pressed="true"] {
  border-color: #73a7ff;
  color: #0b5bd3;
  background: #edf5ff;
}

.floating-window-placeholder {
  min-width: 0;
  visibility: hidden;
  pointer-events: none;
}

.console-panel.is-floating-window {
  position: fixed;
  max-width: calc(100vw - 16px);
  max-height: min(72vh, 760px);
  margin: 0;
  overflow: auto;
  z-index: 900;
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.3);
}

.console-panel.is-floating-window .console-panel-head {
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: 0 1px 0 var(--console-border);
}

body.has-expanded-view .console-panel.is-floating-window {
  overflow: visible;
}

body.has-expanded-view .console-panel.is-floating-window .console-panel-head {
  position: static;
  z-index: auto;
  box-shadow: none;
}

html[data-detached-view] {
  overflow: hidden;
  background: #0f172a;
}

html[data-detached-view] body {
  min-width: 0;
  height: 100vh;
  overflow: hidden;
  background: #0f172a;
}

html[data-detached-view] .console-topbar,
html[data-detached-view] .student-bottom-grid {
  display: none;
}

html[data-detached-view] .student-console {
  height: 100vh;
  padding: 0;
}

html[data-detached-view] .student-main-grid {
  display: block;
  height: 100%;
}

html[data-detached-view] .student-main-grid > * {
  display: none;
}

html[data-detached-view] .window-drag-handle,
html[data-detached-view] .window-reset-btn,
html[data-detached-view] .window-popout-btn {
  display: none;
}

html[data-detached-view="course"] #courseWindow,
html[data-detached-view="sim"] #simWindow {
  width: 100%;
  height: 100vh;
  max-width: none;
  max-height: none;
  display: flex;
  flex-direction: column;
  border: 0;
  border-radius: 0;
  overflow: hidden;
  box-shadow: none;
}

html[data-detached-view="course"] #courseWindow > .check-card,
html[data-detached-view="course"] #courseWindow > .hint-card {
  display: none;
}

html[data-detached-view="course"] .training-video {
  min-height: 0;
  flex: 1;
  margin: 0;
  border-radius: 0;
}

html[data-detached-view="course"] .training-video video {
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  object-fit: contain;
}

html[data-detached-view="sim"] .sim-scene {
  min-height: 0;
  flex: 1;
  margin: 0;
  border-radius: 0;
}

html[data-detached-view="sim"] .replay-strip {
  flex: 0 0 auto;
  margin: 0;
  border-right: 0;
  border-bottom: 0;
  border-left: 0;
  border-radius: 0;
}

.console-panel.is-window-dragging {
  box-shadow: 0 24px 58px rgba(15, 23, 42, 0.38);
}

body.is-dragging-window {
  cursor: grabbing;
  user-select: none;
}

.icon-btn {
  width: 28px;
  height: 28px;
  border: 1px solid #d6e0ec;
  border-radius: 6px;
  background: #ffffff;
  cursor: pointer;
}

.training-video {
  position: relative;
  margin: 8px;
  border-radius: 5px;
  overflow: hidden;
  background: #0f172a;
}

.training-video video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10.5;
  object-fit: cover;
}

.training-video:fullscreen,
.training-video.is-expanded {
  width: 100vw;
  height: 100vh;
  margin: 0;
  border-radius: 0;
  background: #020617;
}

.training-video.is-expanded {
  position: fixed;
  inset: 0;
  z-index: 1000;
}

#courseVideoFullscreen[aria-pressed="true"] {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 1001;
}

.training-video:fullscreen video,
.training-video.is-expanded video {
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  object-fit: contain;
}

.video-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  justify-content: space-between;
  padding: 9px 12px;
  color: #ffffff;
  background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.82));
  font-size: 12px;
}

.check-card,
.hint-card {
  margin: 8px;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  overflow: hidden;
}

.check-title {
  display: flex;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid #e2e8f0;
  font-size: 13px;
}

.check-title span {
  color: #1f6feb;
  font-weight: 800;
}

.experiment-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.experiment-steps li {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 8px;
  padding: 9px 12px;
  border-left: 3px solid transparent;
  border-bottom: 1px solid #edf2f7;
}

.experiment-steps li b {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid #94a3b8;
  color: #475569;
  font-size: 11px;
}

.experiment-steps li strong {
  font-size: 13px;
}

.experiment-steps li span {
  grid-column: 2 / -1;
  color: #64748b;
  font-size: 11px;
}

.experiment-steps li.done b,
.experiment-steps li.active b {
  color: #ffffff;
  border-color: #0f9f6e;
  background: #0f9f6e;
}

.experiment-steps li.active {
  border-left-color: #1f6feb;
  background: #eff6ff;
}

.hint-card {
  padding: 10px 12px;
  color: #475569;
  font-size: 12px;
}

.hint-card p {
  margin: 6px 0 0;
  line-height: 1.55;
}

.task-toolbar {
  display: flex;
  gap: 8px;
  padding: 8px;
  border-bottom: 1px solid #e2e8f0;
}

.task-toolbar button {
  min-height: 30px;
  border: 1px solid #d6e0ec;
  border-radius: 6px;
  background: #ffffff;
  cursor: pointer;
}

.task-body {
  display: grid;
  grid-template-columns: 44px 1fr;
  min-height: 500px;
  background-image: radial-gradient(#d8e1ec 1px, transparent 1px);
  background-size: 16px 16px;
}

.task-rail {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 8px 6px;
  border-right: 1px solid #dfe7f0;
  background: rgba(248, 251, 255, 0.94);
}

.task-rail span {
  writing-mode: vertical-rl;
  min-height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: #1f6feb;
  background: #eef5ff;
  font-size: 12px;
  font-weight: 800;
}

.task-rail span.active {
  color: #ffffff;
  background: #1f6feb;
}

.flow-canvas {
  display: grid;
  gap: 10px;
  justify-items: center;
  align-content: start;
  padding: 14px;
}

.flow-node {
  position: relative;
  width: 150px;
  min-height: 54px;
  display: grid;
  grid-template-columns: 26px 1fr;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border: 1px solid #7ba7ff;
  border-radius: 8px;
  color: #1e3a8a;
  background: #f8fbff;
}

.flow-node::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -11px;
  width: 1px;
  height: 10px;
  background: #64748b;
}

.flow-node b {
  color: #1f6feb;
  font-size: 20px;
}

.flow-node span {
  font-weight: 800;
  font-size: 12px;
}

.flow-node small {
  grid-column: 2;
  color: #64748b;
}

.flow-node.start,
.flow-node.end {
  display: flex;
  justify-content: center;
  min-height: 38px;
  color: #047857;
  border-color: #10a66e;
  background: #ecfdf5;
  font-weight: 900;
}

.flow-node.end {
  color: #475569;
  border-color: #94a3b8;
  background: #f1f5f9;
}

.flow-node.end::after {
  display: none;
}

.flow-node.danger {
  color: #991b1b;
  border-color: #ef4444;
  background: #fff7f7;
}

.flow-node.is-running {
  outline: 3px solid rgba(31, 111, 235, 0.18);
  background: #eff6ff;
}

.flow-node.is-done {
  border-color: #10a66e;
}

.flow-node.program-flow-node {
  width: min(100%, 206px);
  grid-template-columns: 26px minmax(0, 1fr) auto;
  cursor: pointer;
}

.program-flow-node .program-step-controls {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 5px;
}

.program-flow-node .program-step-controls label {
  display: grid;
  gap: 2px;
  color: #64748b;
  font-size: 9px;
}

.program-flow-node .program-step-controls input {
  width: 100%;
  min-width: 0;
  height: 26px;
  padding: 0 5px;
  border: 1px solid #c8d6e6;
  border-radius: 4px;
  color: #1e293b;
  background: #ffffff;
  font-size: 11px;
}

.program-step-buttons {
  display: flex;
  gap: 3px;
}

.program-step-buttons button {
  width: 24px;
  height: 24px;
  padding: 0;
  border: 1px solid #c8d6e6;
  border-radius: 4px;
  color: #475569;
  background: #ffffff;
  cursor: pointer;
}

.program-flow-node.is-invalid {
  border-color: #dc2626;
  background: #fff7f7;
}

.program-editor {
  display: grid;
  gap: 8px;
  padding: 10px;
  border-top: 1px solid #dfe7f0;
  background: #f8fafc;
}

.program-editor-head,
.program-editor-actions,
.program-add-row {
  display: flex;
  align-items: end;
  gap: 7px;
}

.program-editor-head {
  align-items: center;
  justify-content: space-between;
}

.program-editor-head strong {
  font-size: 13px;
}

.program-editor-head span {
  color: #64748b;
  font-size: 11px;
  font-weight: 800;
}

.program-editor-head span.is-valid { color: #087a55; }
.program-editor-head span.is-warning { color: #9a5b00; }
.program-editor-head span.is-invalid { color: #b91c1c; }

.program-mode-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: 34px;
  border: 1px solid #c8d6e6;
  border-radius: 5px;
  overflow: hidden;
  background: #ffffff;
}

.program-mode-switch button {
  border: 0;
  border-right: 1px solid #c8d6e6;
  color: #526579;
  background: #ffffff;
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
}

.program-mode-switch button:last-child { border-right: 0; }
.program-mode-switch button.is-active { color: #ffffff; background: #1759a8; }

.program-mode-panel { display: grid; gap: 8px; }

.code-program-editor label {
  color: #334155;
  font-size: 11px;
  font-weight: 900;
}

.code-program-editor textarea {
  width: 100%;
  min-height: 190px;
  resize: vertical;
  border: 1px solid #9fb4ca;
  border-radius: 5px;
  padding: 10px;
  color: #d9e7f5;
  background: #102238;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  line-height: 1.55;
  tab-size: 2;
}

.code-program-editor textarea:focus {
  border-color: #2b78d0;
  outline: 2px solid rgba(43, 120, 208, 0.18);
}

.code-program-editor p,
.code-program-editor output {
  margin: 0;
  color: #64748b;
  font-size: 10px;
  line-height: 1.5;
}

.code-program-editor output.is-valid { color: #087a55; }
.code-program-editor output.is-warning { color: #8a5200; }
.code-program-editor output.is-invalid { color: #b91c1c; }

.program-add-row label {
  min-width: 0;
  display: grid;
  flex: 1 1 auto;
  gap: 4px;
}

.program-add-row label:nth-child(2) {
  flex: 0 0 62px;
}

.program-add-row span {
  color: #64748b;
  font-size: 10px;
  font-weight: 800;
}

.program-add-row select,
.program-add-row input {
  width: 100%;
  min-width: 0;
  height: 32px;
  border: 1px solid #c8d6e6;
  border-radius: 5px;
  padding: 0 7px;
  background: #ffffff;
}

.program-add-row button,
.program-editor-actions button {
  min-height: 32px;
  padding: 0 9px;
  border-radius: 5px;
  white-space: nowrap;
}

.program-editor-actions {
  align-items: stretch;
}

.program-editor-actions button:last-child {
  flex: 1 1 auto;
}

.command-form-compact {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 8px;
  border-top: 1px solid #e2e8f0;
}

.command-form-compact label {
  display: grid;
  gap: 5px;
}

.command-form-compact span {
  color: #64748b;
  font-size: 11px;
  font-weight: 800;
}

.command-form-compact input,
.command-form-compact select {
  min-height: 34px;
  border: 1px solid #d6e0ec;
  border-radius: 6px;
  padding: 0 9px;
}

.command-form-compact button {
  min-height: 36px;
  border-radius: 6px;
}

.course-action-scope {
  grid-column: 1 / -1;
  margin: 0;
  padding: 7px 9px;
  border: 1px solid #c9d9ea;
  border-radius: 5px;
  background: #f6faff;
  color: #31577f;
  font-size: 10px;
  line-height: 1.45;
}

.sync-readiness {
  grid-column: 1 / -1;
  min-height: 34px;
  margin: 0;
  padding: 8px 10px;
  border: 1px solid #d6e0ec;
  border-radius: 6px;
  background: #f8fafc;
  color: #475569;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
}

.sync-readiness.is-ready {
  border-color: #86d9bb;
  background: #ecfdf5;
  color: #087a55;
}

.sync-readiness.is-blocked {
  border-color: #f3b4b4;
  background: #fff7f7;
  color: #a11b1b;
}

.sync-readiness.is-checking {
  border-color: #9fc5f8;
  background: #eff6ff;
  color: #1759a8;
}

.sync-readiness.is-running {
  border-color: #70a5ef;
  background: #eaf3ff;
  color: #114f9e;
}

.sync-readiness.is-settling {
  border-color: #e4b75b;
  background: #fff8e8;
  color: #8a5200;
}

.sim-panel {
  min-width: 0;
}

.run-status {
  color: #0f9f6e !important;
  font-weight: 800;
}

.sim-scene {
  position: relative;
  min-height: 472px;
  margin: 8px;
  border-radius: 6px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(15, 23, 42, 0.74), rgba(30, 41, 59, 0.86)),
    #1f2937;
}

.sim-scene:fullscreen,
.sim-scene.is-expanded {
  width: 100vw;
  height: 100vh;
  min-height: 100vh;
  margin: 0;
  border-radius: 0;
}

.sim-scene.is-expanded {
  position: fixed;
  inset: 0;
  z-index: 1000;
}

body.has-expanded-view {
  overflow: hidden;
}

.sim-view-toolbar {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 16;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px;
  border: 1px solid rgba(148, 163, 184, 0.34);
  border-radius: 6px;
  color: #e5edf8;
  background: rgba(15, 23, 42, 0.78);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.24);
}

.sim-view-toolbar button {
  width: 30px;
  height: 30px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 5px;
  color: #f8fafc;
  background: rgba(30, 41, 59, 0.88);
  cursor: pointer;
  font-size: 17px;
  line-height: 1;
}

.sim-view-toolbar button:hover,
.sim-view-toolbar button:focus-visible {
  border-color: #38bdf8;
  background: #075985;
  outline: none;
}

.sim-view-toolbar output {
  min-width: 44px;
  text-align: center;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.scene-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.14) 1px, transparent 1px);
  background-size: 34px 34px;
  transform: perspective(520px) rotateX(55deg) translateY(70px);
  transform-origin: center bottom;
}

.sim-route {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 10%;
  width: 84%;
  height: 64%;
  overflow: visible;
}

.sim-route path {
  fill: none;
  stroke: #38cfff;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 680;
  stroke-dashoffset: 360;
  transition: stroke-dashoffset 0.6s ease;
}

.sim-route circle {
  fill: #37cfff;
  stroke: #ffffff;
  stroke-width: 2;
}

.sim-scene[data-action="move_x"] .sim-route path,
.sim-scene[data-action="move_back"] .sim-route path,
.sim-scene[data-action="strafe_left"] .sim-route path,
.sim-scene[data-action="strafe_right"] .sim-route path,
.sim-scene[data-action="turn"] .sim-route path,
.sim-scene[data-action="turn_right"] .sim-route path,
.sim-scene[data-action="random_gait"] .sim-route path,
.sim-scene[data-action="stop"] .sim-route path {
  stroke-dashoffset: var(--route-offset, 0);
}

.twin-rig {
  --pose-x: 0px;
  --pose-y: 0px;
  --pose-rotate: -3deg;
  --rig-scale: 0.86;
  position: absolute;
  left: 8%;
  top: 84px;
  z-index: 2;
  width: 560px;
  height: 260px;
  transform: translate3d(var(--pose-x), var(--pose-y), 0) scale(var(--rig-scale)) rotateZ(var(--pose-rotate));
  transform-origin: 45% 62%;
  transition: transform 0.45s ease, filter 0.35s ease;
}

.twin-rig[data-pose="walk"] {
  --pose-x: 58px;
  --pose-y: -18px;
}

.twin-rig[data-pose="turn"] {
  --pose-x: 34px;
  --pose-y: -8px;
  --pose-rotate: -12deg;
}

.twin-rig[data-pose="stand"] {
  --pose-y: -6px;
}

.twin-rig[data-pose="stop"] {
  filter: saturate(0.72) brightness(0.86);
}

.rig-body {
  position: absolute;
  left: 142px;
  top: 68px;
  width: 292px;
  height: 88px;
  border: 1px solid rgba(226, 232, 240, 0.35);
  background:
    linear-gradient(115deg, #111827 0 38%, #4b5563 39% 66%, #161b22 67% 100%);
  clip-path: polygon(7% 16%, 78% 0, 100% 30%, 92% 86%, 18% 100%, 0 64%);
  box-shadow: 0 22px 34px rgba(0, 0, 0, 0.36), inset 0 1px rgba(255, 255, 255, 0.2);
  transform: skewX(-8deg);
  transition: transform 0.35s ease;
}

.rig-body::before {
  content: "";
  position: absolute;
  right: 54px;
  bottom: 18px;
  width: 52px;
  height: 28px;
  background: repeating-linear-gradient(90deg, #05070b 0 5px, transparent 5px 12px);
  opacity: 0.76;
}

.rig-body::after {
  content: "";
  position: absolute;
  left: 44px;
  top: 12px;
  width: 62px;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, #1d4ed8, #22d3ee);
  opacity: 0.8;
}

.rig-brand,
.rig-model {
  position: absolute;
  color: #f8fafc;
  font-weight: 900;
  letter-spacing: 0;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55);
}

.rig-brand {
  left: 116px;
  top: 30px;
  font-size: 22px;
}

.rig-model {
  right: 38px;
  top: 36px;
  font-size: 19px;
}

.rig-head {
  position: absolute;
  left: 84px;
  top: 86px;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  width: 66px;
  height: 60px;
  border: 3px solid #0f172a;
  border-radius: 10px;
  background: linear-gradient(145deg, #0f172a, #020617);
  box-shadow: 0 14px 22px rgba(0, 0, 0, 0.42), inset 0 0 0 2px rgba(148, 163, 184, 0.16);
}

.rig-head::after {
  content: "";
  position: absolute;
  right: -24px;
  top: 22px;
  width: 28px;
  height: 12px;
  border-radius: 4px;
  background: #111827;
}

.rig-head i {
  width: 11px;
  height: 24px;
  border-radius: 999px;
  background: #8b5cf6;
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.95);
}

.rig-arm {
  position: absolute;
  left: 10px;
  top: 44px;
  z-index: 4;
  width: 128px;
  height: 170px;
}

.arm-link {
  position: absolute;
  display: block;
  height: 20px;
  border-radius: 6px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: linear-gradient(180deg, #1f2937, #020617);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.14);
  transform-origin: 100% 50%;
}

.arm-base {
  left: 56px;
  top: 20px;
  width: 94px;
  transform: rotate(-16deg);
}

.arm-fore {
  left: 24px;
  top: 76px;
  width: 92px;
  transform: rotate(70deg);
}

.gripper {
  position: absolute;
  left: -4px;
  top: 136px;
  width: 58px;
  height: 42px;
  border: 4px solid #111827;
  border-radius: 18px 18px 22px 22px;
  background: #dc2626;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.42), inset 0 4px rgba(255, 255, 255, 0.2);
}

.gripper i {
  position: absolute;
  top: -4px;
  width: 16px;
  height: 46px;
  border-radius: 10px;
  background: linear-gradient(180deg, #ef4444, #991b1b);
}

.gripper i:first-child {
  left: 9px;
  transform: rotate(13deg);
}

.gripper i:last-child {
  right: 9px;
  transform: rotate(-13deg);
}

.rig-leg {
  position: absolute;
  z-index: 3;
  width: 76px;
  height: 162px;
  transform-origin: 38px 0;
}

.leg-front-left { left: 156px; top: 132px; }
.leg-front-right { left: 102px; top: 128px; z-index: 1; opacity: 0.82; }
.leg-rear-left { left: 356px; top: 122px; }
.leg-rear-right { left: 292px; top: 124px; z-index: 1; opacity: 0.84; }

.leg-segment {
  position: absolute;
  display: block;
  width: 18px;
  height: 58px;
  border: 1px solid rgba(148, 163, 184, 0.36);
  border-radius: 8px;
  background: linear-gradient(90deg, #020617, #1f2937 42%, #4b5563 54%, #111827);
  box-shadow: 0 8px 14px rgba(0, 0, 0, 0.32);
  transform-origin: 50% 8px;
  transition: transform 0.42s ease, top 0.42s ease, left 0.42s ease;
}

.leg-segment.hip {
  left: 28px;
  top: 0;
  transform: rotate(18deg);
}

.leg-segment.thigh {
  left: 24px;
  top: 48px;
  transform: rotate(-20deg);
}

.leg-segment.shank {
  left: 31px;
  top: 96px;
  height: 54px;
  transform: rotate(6deg);
}

.joint {
  position: absolute;
  z-index: 6;
  width: 13px;
  height: 13px;
  border: 2px solid #64748b;
  border-radius: 999px;
  background: #020617;
  box-shadow: 0 0 0 2px rgba(15, 23, 42, 0.62);
}

.top-imu {
  left: 138px;
  top: 12px;
  border-color: #22c55e;
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.7);
}

.hip-joint { left: 30px; top: -4px; }
.knee-joint { left: 27px; top: 48px; }
.ankle-joint { left: 34px; top: 102px; }

.foot {
  position: absolute;
  left: 18px;
  top: 145px;
  width: 54px;
  height: 18px;
  border-radius: 999px 999px 14px 14px;
  background: linear-gradient(180deg, #111827, #020617);
  box-shadow: 0 7px 12px rgba(0, 0, 0, 0.35);
  transform: rotate(-8deg);
}

.footprint {
  position: absolute;
  z-index: 1;
  width: 54px;
  height: 16px;
  border-radius: 999px;
  background: rgba(56, 207, 255, 0.24);
  opacity: 0.18;
  transform: rotate(-9deg);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.print-front-left { left: 194px; top: 282px; }
.print-front-right { left: 132px; top: 274px; }
.print-rear-left { left: 392px; top: 274px; }
.print-rear-right { left: 326px; top: 272px; }

.twin-rig[data-pose="walk"] .footprint,
.twin-rig[data-pose="turn"] .footprint {
  opacity: 0.82;
  animation: footPulse 0.9s ease infinite alternate;
}

.twin-rig[data-pose="walk"] .leg-front-left .hip { transform: rotate(-18deg); }
.twin-rig[data-pose="walk"] .leg-front-left .thigh { transform: rotate(-38deg); }
.twin-rig[data-pose="walk"] .leg-front-left .shank { transform: rotate(30deg); }
.twin-rig[data-pose="walk"] .leg-front-right .hip { transform: rotate(30deg); }
.twin-rig[data-pose="walk"] .leg-front-right .thigh { transform: rotate(20deg); }
.twin-rig[data-pose="walk"] .leg-front-right .shank { transform: rotate(-26deg); }
.twin-rig[data-pose="walk"] .leg-rear-left .hip { transform: rotate(25deg); }
.twin-rig[data-pose="walk"] .leg-rear-left .thigh { transform: rotate(18deg); }
.twin-rig[data-pose="walk"] .leg-rear-left .shank { transform: rotate(-24deg); }
.twin-rig[data-pose="walk"] .leg-rear-right .hip { transform: rotate(-20deg); }
.twin-rig[data-pose="walk"] .leg-rear-right .thigh { transform: rotate(-36deg); }
.twin-rig[data-pose="walk"] .leg-rear-right .shank { transform: rotate(28deg); }

.twin-rig[data-pose="turn"] .leg-front-left .hip { transform: rotate(-28deg); }
.twin-rig[data-pose="turn"] .leg-front-left .thigh { transform: rotate(-24deg); }
.twin-rig[data-pose="turn"] .leg-front-left .shank { transform: rotate(34deg); }
.twin-rig[data-pose="turn"] .leg-front-right .hip { transform: rotate(34deg); }
.twin-rig[data-pose="turn"] .leg-front-right .thigh { transform: rotate(18deg); }
.twin-rig[data-pose="turn"] .leg-front-right .shank { transform: rotate(-36deg); }
.twin-rig[data-pose="turn"] .leg-rear-left .hip { transform: rotate(-10deg); }
.twin-rig[data-pose="turn"] .leg-rear-left .thigh { transform: rotate(-18deg); }
.twin-rig[data-pose="turn"] .leg-rear-left .shank { transform: rotate(26deg); }
.twin-rig[data-pose="turn"] .leg-rear-right .hip { transform: rotate(18deg); }
.twin-rig[data-pose="turn"] .leg-rear-right .thigh { transform: rotate(20deg); }
.twin-rig[data-pose="turn"] .leg-rear-right .shank { transform: rotate(-28deg); }

.twin-rig[data-pose="stand"] .rig-body,
.twin-rig[data-pose="stand"] .rig-head {
  animation: standPulse 1.2s ease-in-out infinite;
}

.twin-rig[data-pose="stand"] .leg-segment.hip { transform: rotate(0deg); }
.twin-rig[data-pose="stand"] .leg-segment.thigh { transform: rotate(-18deg); }
.twin-rig[data-pose="stand"] .leg-segment.shank { transform: rotate(36deg); }

.twin-rig[data-pose="stop"] .joint {
  border-color: #475569;
  box-shadow: none;
}

.twin-rig[data-pose="walk"] .joint,
.twin-rig[data-pose="turn"] .joint,
.twin-rig[data-pose="stand"] .joint {
  animation: jointPulse 0.9s ease infinite alternate;
}

.joint-state-grid {
  position: absolute;
  left: 14px;
  right: 164px;
  bottom: 58px;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(4, minmax(88px, 1fr));
  gap: 6px;
}

.joint-state-grid span {
  display: grid;
  gap: 2px;
  padding: 7px 8px;
  border: 1px solid rgba(148, 163, 184, 0.32);
  border-radius: 6px;
  color: #e2e8f0;
  background: rgba(15, 23, 42, 0.68);
  font-size: 11px;
}

.joint-state-grid em {
  color: #7dd3fc;
  font-style: normal;
  font-weight: 900;
}

.joint-state-grid strong {
  font-size: 12px;
}

.sim-reference {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 3;
  display: grid;
  gap: 4px;
  width: 108px;
  color: #dbeafe;
  font-size: 11px;
}

.sim-reference img {
  width: 108px;
  height: 70px;
  object-fit: cover;
  border: 1px solid rgba(226, 232, 240, 0.36);
  border-radius: 6px;
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.3);
}

@keyframes footPulse {
  from { transform: scale(0.92) rotate(-9deg); }
  to { transform: scale(1.08) rotate(-9deg); }
}

@keyframes jointPulse {
  from { box-shadow: 0 0 0 2px rgba(15, 23, 42, 0.62); }
  to { box-shadow: 0 0 0 4px rgba(56, 207, 255, 0.24); }
}

@keyframes standPulse {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -4px; }
}

/* XGO visual fidelity pass: keep the rig stateful, but make the silhouette closer to the real dog. */
.twin-rig {
  --pose-x: 0px;
  --pose-y: 0px;
  --pose-rotate: -4deg;
  --rig-scale: 0.82;
  left: 6%;
  top: 96px;
  width: 680px;
  height: 302px;
  transform: translate3d(var(--pose-x), var(--pose-y), 0) scale(var(--rig-scale)) rotateZ(var(--pose-rotate));
  transform-origin: 46% 58%;
  filter: drop-shadow(0 26px 28px rgba(0, 0, 0, 0.36));
}

.twin-rig[data-pose="walk"] {
  --pose-x: 54px;
  --pose-y: -16px;
}

.twin-rig[data-pose="turn"] {
  --pose-x: 30px;
  --pose-y: -8px;
  --pose-rotate: -11deg;
}

.twin-rig[data-pose="stand"] {
  --pose-y: -5px;
}

.rig-body {
  left: 188px;
  top: 72px;
  width: 376px;
  height: 86px;
  border: 1px solid rgba(226, 232, 240, 0.22);
  border-radius: 0;
  background:
    linear-gradient(153deg, transparent 0 8%, rgba(15, 23, 42, 0.75) 8% 16%, transparent 17%),
    linear-gradient(107deg, #111827 0 18%, #2d3440 18% 39%, #656b74 40% 59%, #282f39 60% 81%, #111827 82% 100%);
  clip-path: polygon(5% 22%, 38% 7%, 77% 2%, 99% 30%, 91% 78%, 64% 91%, 22% 96%, 0 64%);
  transform: skewX(-10deg);
  box-shadow:
    0 20px 30px rgba(0, 0, 0, 0.34),
    inset 0 1px rgba(255, 255, 255, 0.26),
    inset 0 -16px 28px rgba(0, 0, 0, 0.42);
}

.rig-body::before {
  right: 92px;
  bottom: 23px;
  width: 56px;
  height: 19px;
  border-radius: 2px;
  background: repeating-linear-gradient(90deg, #030712 0 5px, transparent 5px 11px);
  opacity: 0.92;
}

.rig-body::after {
  left: 76px;
  top: 15px;
  width: 84px;
  height: 12px;
  border-radius: 2px;
  background: linear-gradient(90deg, #1d4ed8, #0ea5e9 74%, transparent 75%);
  opacity: 0.94;
}

.body-panel,
.body-vents,
.body-stripe {
  position: absolute;
  display: block;
  pointer-events: none;
}

.body-nose {
  left: 10px;
  top: 30px;
  width: 64px;
  height: 45px;
  border-radius: 4px 2px 2px 6px;
  background: linear-gradient(125deg, #0b1120, #2f3744 62%, #0b1120);
  clip-path: polygon(20% 0, 100% 12%, 82% 84%, 0 100%, 0 26%);
}

.body-tail {
  right: 7px;
  top: 22px;
  width: 76px;
  height: 48px;
  background: linear-gradient(132deg, #1f2937, #060910);
  clip-path: polygon(0 10%, 78% 0, 100% 34%, 78% 100%, 16% 88%);
}

.body-vents {
  right: 122px;
  top: 48px;
  width: 68px;
  height: 18px;
  background: repeating-linear-gradient(90deg, #020617 0 6px, transparent 6px 13px);
  transform: skewX(-8deg);
}

.body-stripe {
  right: 26px;
  top: 31px;
  width: 92px;
  height: 36px;
  border-top: 4px solid rgba(226, 232, 240, 0.85);
  border-bottom: 4px solid rgba(226, 232, 240, 0.4);
  transform: skewX(-18deg);
  opacity: 0.68;
}

.rig-brand {
  left: 132px;
  top: 28px;
  font-size: 24px;
  transform: skewX(10deg);
}

.rig-brand::after {
  content: "mini";
  position: absolute;
  left: 5px;
  top: 22px;
  color: rgba(248, 250, 252, 0.86);
  font-size: 9px;
  font-weight: 800;
}

.rig-model {
  right: 48px;
  top: 32px;
  font-size: 24px;
  transform: skewX(10deg);
}

.top-imu {
  left: 202px;
  top: 7px;
  width: 16px;
  height: 16px;
  border-color: #16a34a;
  background: #052e16;
}

.rig-neck {
  position: absolute;
  left: 156px;
  top: 118px;
  z-index: 4;
  width: 54px;
  height: 24px;
  border-radius: 7px;
  background: linear-gradient(180deg, #1f2937, #020617);
  transform: rotate(-9deg);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.14);
}

.rig-belly-rail {
  position: absolute;
  left: 134px;
  top: 178px;
  z-index: 2;
  width: 330px;
  height: 16px;
  border-radius: 999px;
  background: linear-gradient(90deg, #020617, #111827 45%, #020617);
  transform: rotate(-5deg);
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.35);
}

.tail-deck {
  position: absolute;
  left: 482px;
  top: 53px;
  z-index: 3;
  width: 86px;
  height: 34px;
  border-radius: 4px;
  background: linear-gradient(155deg, #374151, #111827);
  clip-path: polygon(18% 0, 100% 16%, 86% 78%, 0 100%);
  transform: rotate(-9deg);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.18);
}

.rig-head {
  left: 107px;
  top: 112px;
  width: 72px;
  height: 64px;
  border: 5px solid #111827;
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(30, 41, 59, 0.55), transparent 45%),
    #030712;
  box-shadow:
    0 16px 24px rgba(0, 0, 0, 0.44),
    inset 0 0 0 3px rgba(148, 163, 184, 0.12);
}

.rig-head::before {
  content: "";
  position: absolute;
  left: 18px;
  top: -18px;
  width: 36px;
  height: 16px;
  border-radius: 5px 5px 2px 2px;
  background: linear-gradient(180deg, #111827, #020617);
}

.rig-head::after {
  right: -36px;
  top: 25px;
  width: 38px;
  height: 15px;
  border-radius: 5px;
  background: linear-gradient(90deg, #020617, #1f2937);
}

.rig-head i {
  width: 12px;
  height: 26px;
  border-radius: 999px;
  background: #8b5cf6;
  box-shadow: 0 0 14px rgba(139, 92, 246, 1);
}

.chin-wheel {
  position: absolute;
  left: 119px;
  top: 196px;
  z-index: 5;
  width: 70px;
  height: 21px;
  border-radius: 999px;
  background: linear-gradient(180deg, #111827, #020617);
  transform: rotate(-10deg);
  box-shadow: 0 8px 14px rgba(0, 0, 0, 0.38);
}

.rig-arm {
  left: 24px;
  top: 34px;
  z-index: 7;
  width: 166px;
  height: 226px;
}

.rig-arm::before,
.rig-arm::after {
  content: "";
  position: absolute;
  z-index: 3;
  border-radius: 999px;
  background: #070b12;
  border: 2px solid #374151;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.14);
}

.rig-arm::before {
  left: 116px;
  top: 44px;
  width: 20px;
  height: 20px;
}

.rig-arm::after {
  left: 54px;
  top: 93px;
  width: 22px;
  height: 22px;
}

.arm-link {
  height: 23px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 6px;
  background:
    linear-gradient(90deg, #020617 0 16%, #1f2937 17% 72%, #05070b 73% 100%);
}

.arm-base {
  left: 70px;
  top: 42px;
  width: 114px;
  transform: rotate(-12deg);
}

.arm-fore {
  left: 8px;
  top: 104px;
  width: 118px;
  transform: rotate(72deg);
}

.gripper {
  left: -18px;
  top: 174px;
  width: 64px;
  height: 50px;
  border-width: 5px;
  border-radius: 18px 18px 25px 25px;
  background:
    radial-gradient(circle at 50% 28%, #f87171 0 16%, transparent 17%),
    linear-gradient(180deg, #ef4444, #991b1b);
  transform: rotate(-12deg);
}

.gripper i {
  top: -2px;
  width: 18px;
  height: 52px;
  border-radius: 12px;
}

.rig-leg {
  width: 90px;
  height: 188px;
  transform-origin: 45px 0;
}

.rig-leg::before {
  content: attr(data-leg);
  position: absolute;
  left: 22px;
  top: -14px;
  z-index: 5;
  display: grid;
  place-items: center;
  width: 48px;
  height: 30px;
  border-radius: 8px;
  color: rgba(226, 232, 240, 0.42);
  background: linear-gradient(145deg, #111827, #020617);
  font-size: 9px;
  font-weight: 900;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.12);
}

.leg-front-left { left: 188px; top: 142px; z-index: 6; }
.leg-front-right { left: 136px; top: 134px; z-index: 2; opacity: 0.68; filter: brightness(0.72); }
.leg-rear-left { left: 456px; top: 132px; z-index: 6; }
.leg-rear-right { left: 372px; top: 128px; z-index: 2; opacity: 0.72; filter: brightness(0.76); }

.leg-segment {
  width: 16px;
  height: 66px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 7px;
  background:
    linear-gradient(90deg, #020617 0 20%, #111827 21% 45%, #4b5563 46% 58%, #0f172a 59% 100%);
  box-shadow: 0 9px 14px rgba(0, 0, 0, 0.35), inset 0 1px rgba(255, 255, 255, 0.14);
}

.leg-segment.hip {
  left: 39px;
  top: 4px;
  height: 58px;
  transform: rotate(13deg);
}

.leg-segment.thigh {
  left: 34px;
  top: 55px;
  height: 66px;
  transform: rotate(-29deg);
}

.leg-segment.shank {
  left: 49px;
  top: 110px;
  height: 64px;
  transform: rotate(-34deg);
}

.leg-front-right .hip,
.leg-rear-right .hip {
  transform: rotate(22deg);
}

.leg-front-right .thigh,
.leg-rear-right .thigh {
  transform: rotate(22deg);
}

.leg-front-right .shank,
.leg-rear-right .shank {
  transform: rotate(-20deg);
}

.joint {
  width: 19px;
  height: 19px;
  border: 3px solid #1f2937;
  background:
    radial-gradient(circle, #94a3b8 0 16%, #0f172a 18% 48%, #020617 50% 100%);
  box-shadow: 0 0 0 2px rgba(75, 85, 99, 0.65), 0 5px 9px rgba(0, 0, 0, 0.35);
}

.joint::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 5px;
  width: 3px;
  height: 3px;
  border-radius: 999px;
  background: #e2e8f0;
  opacity: 0.72;
}

.hip-joint { left: 37px; top: -6px; }
.knee-joint { left: 31px; top: 53px; }
.ankle-joint { left: 49px; top: 112px; }

.foot {
  left: 43px;
  top: 166px;
  width: 66px;
  height: 22px;
  border-radius: 999px 999px 15px 15px;
  background: linear-gradient(180deg, #111827, #020617 68%, #000);
  transform: rotate(-20deg);
}

.leg-front-right .foot,
.leg-rear-right .foot {
  left: 30px;
  transform: rotate(14deg);
}

.print-front-left { left: 245px; top: 313px; }
.print-front-right { left: 158px; top: 302px; }
.print-rear-left { left: 516px; top: 302px; }
.print-rear-right { left: 410px; top: 296px; }

.twin-rig[data-pose="walk"] .leg-front-left .hip { transform: rotate(-16deg); }
.twin-rig[data-pose="walk"] .leg-front-left .thigh { transform: rotate(-42deg); }
.twin-rig[data-pose="walk"] .leg-front-left .shank { transform: rotate(-54deg); }
.twin-rig[data-pose="walk"] .leg-front-right .hip { transform: rotate(31deg); }
.twin-rig[data-pose="walk"] .leg-front-right .thigh { transform: rotate(28deg); }
.twin-rig[data-pose="walk"] .leg-front-right .shank { transform: rotate(-18deg); }
.twin-rig[data-pose="walk"] .leg-rear-left .hip { transform: rotate(24deg); }
.twin-rig[data-pose="walk"] .leg-rear-left .thigh { transform: rotate(18deg); }
.twin-rig[data-pose="walk"] .leg-rear-left .shank { transform: rotate(-26deg); }
.twin-rig[data-pose="walk"] .leg-rear-right .hip { transform: rotate(-18deg); }
.twin-rig[data-pose="walk"] .leg-rear-right .thigh { transform: rotate(-38deg); }
.twin-rig[data-pose="walk"] .leg-rear-right .shank { transform: rotate(-50deg); }

.twin-rig[data-pose="turn"] .leg-front-left .hip { transform: rotate(-26deg); }
.twin-rig[data-pose="turn"] .leg-front-left .thigh { transform: rotate(-32deg); }
.twin-rig[data-pose="turn"] .leg-front-left .shank { transform: rotate(-56deg); }
.twin-rig[data-pose="turn"] .leg-front-right .hip { transform: rotate(35deg); }
.twin-rig[data-pose="turn"] .leg-front-right .thigh { transform: rotate(22deg); }
.twin-rig[data-pose="turn"] .leg-front-right .shank { transform: rotate(-24deg); }
.twin-rig[data-pose="turn"] .leg-rear-left .hip { transform: rotate(-8deg); }
.twin-rig[data-pose="turn"] .leg-rear-left .thigh { transform: rotate(-28deg); }
.twin-rig[data-pose="turn"] .leg-rear-left .shank { transform: rotate(-44deg); }
.twin-rig[data-pose="turn"] .leg-rear-right .hip { transform: rotate(18deg); }
.twin-rig[data-pose="turn"] .leg-rear-right .thigh { transform: rotate(20deg); }
.twin-rig[data-pose="turn"] .leg-rear-right .shank { transform: rotate(-22deg); }

.twin-rig[data-pose="stand"] .leg-segment.hip { transform: rotate(7deg); }
.twin-rig[data-pose="stand"] .leg-segment.thigh { transform: rotate(-23deg); }
.twin-rig[data-pose="stand"] .leg-segment.shank { transform: rotate(-36deg); }

.twin-rig[data-pose="stand"] .leg-front-right .hip,
.twin-rig[data-pose="stand"] .leg-rear-right .hip {
  transform: rotate(18deg);
}

.twin-rig[data-pose="stand"] .leg-front-right .thigh,
.twin-rig[data-pose="stand"] .leg-rear-right .thigh {
  transform: rotate(14deg);
}

.twin-rig[data-pose="stand"] .leg-front-right .shank,
.twin-rig[data-pose="stand"] .leg-rear-right .shank {
  transform: rotate(-18deg);
}

.twin-rig {
  --stride: 0px;
  --stride-x: 0px;
  --front-step: 0px;
  --rear-step: 0px;
  --skin-opacity: 0.56;
  transform: translate3d(calc(var(--pose-x) + var(--stride-x)), var(--pose-y), 0) scale(var(--rig-scale)) rotateZ(var(--pose-rotate));
}

.twin-rig.is-updating .joint,
.twin-rig.is-updating .leg-segment,
.twin-rig.is-updating .grip-ball {
  animation-duration: 0.5s;
}

.rig-photo-skin {
  position: absolute;
  left: 12px;
  top: -18px;
  z-index: 0;
  width: 660px;
  height: 340px;
  object-fit: cover;
  object-position: 50% 60%;
  opacity: var(--skin-opacity);
  filter: contrast(1.16) saturate(0.84) brightness(0.78);
  mix-blend-mode: screen;
  clip-path: polygon(0 26%, 100% 22%, 100% 76%, 0 83%);
  pointer-events: none;
}

.twin-rig[data-pose="walk"] {
  --skin-opacity: 0.48;
}

.twin-rig[data-pose="stop"] {
  --skin-opacity: 0.38;
}

.rig-body,
.rig-head,
.rig-arm,
.rig-leg,
.rig-belly-rail,
.tail-deck,
.rig-neck,
.chin-wheel {
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.34));
}

.gripper {
  overflow: visible;
}

.grip-ball {
  position: absolute;
  left: -16px;
  top: 6px;
  z-index: 1;
  display: block;
  width: 70px;
  height: 62px;
  border: 3px solid #0f172a;
  border-radius: 50%;
  overflow: hidden;
  background: #b91c1c;
  box-shadow: 0 12px 18px rgba(0, 0, 0, 0.42), inset 0 0 18px rgba(0, 0, 0, 0.34);
  transform: rotate(-9deg) scale(1);
  transition: transform 0.36s ease, filter 0.36s ease;
}

.grip-ball img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 45% 70%;
  transform: scale(1.16);
}

.gripper i {
  z-index: 2;
  border: 2px solid #111827;
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.36), inset 0 2px rgba(255, 255, 255, 0.24);
}

.twin-rig[data-pose="walk"] .grip-ball {
  transform: translate3d(0, -5px, 0) rotate(-12deg) scale(1.03);
}

.twin-rig[data-pose="turn"] .grip-ball {
  transform: translate3d(-5px, 0, 0) rotate(-20deg) scale(1.02);
}

.twin-rig[data-pose="stand"] .grip-ball {
  transform: translate3d(0, -2px, 0) rotate(-9deg) scale(1.01);
}

.twin-rig[data-pose="stop"] .grip-ball {
  filter: saturate(0.78) brightness(0.82);
}

.leg-segment::before,
.leg-segment::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #020617;
  border: 1px solid rgba(148, 163, 184, 0.46);
  transform: translateX(-50%);
}

.leg-segment::before {
  top: 8px;
}

.leg-segment::after {
  bottom: 8px;
}

.leg-segment.hip {
  width: 18px;
  height: 64px;
  border-radius: 5px;
  background:
    linear-gradient(90deg, #020617 0 18%, #202938 19% 42%, #6b7280 43% 55%, #0b1120 56% 100%);
}

.leg-segment.thigh {
  width: 15px;
  height: 74px;
  border-radius: 4px;
}

.leg-segment.shank {
  width: 14px;
  height: 72px;
  border-radius: 4px;
}

.foot {
  height: 24px;
  border: 1px solid rgba(15, 23, 42, 0.8);
  box-shadow: 0 9px 14px rgba(0, 0, 0, 0.42), inset 0 4px 7px rgba(148, 163, 184, 0.12);
}

.twin-rig[data-pose="walk"] .leg-front-left .foot,
.twin-rig[data-pose="walk"] .leg-rear-right .foot {
  transform: translateX(var(--front-step)) rotate(-25deg);
}

.twin-rig[data-pose="walk"] .leg-front-right .foot,
.twin-rig[data-pose="walk"] .leg-rear-left .foot {
  transform: translateX(var(--rear-step)) rotate(12deg);
}

.twin-rig[data-pose="turn"] .leg-front-left .foot {
  transform: translateX(-10px) rotate(-32deg);
}

.twin-rig[data-pose="turn"] .leg-front-right .foot {
  transform: translateX(12px) rotate(20deg);
}

/* Photo-calibrated digital twin: real XGO cutout for fidelity, data overlay for simulation state. */
.twin-rig {
  --pose-x: 0px;
  --pose-y: 0px;
  --pose-rotate: -1deg;
  --rig-scale: 0.76;
  --skin-opacity: 1;
  --stride-x: 0px;
  --stride-y: 0px;
  --front-step: 0px;
  --rear-step: 0px;
  --lateral-step: 0px;
  --lateral-counter-step: 0px;
  --front-return: 0px;
  --rear-return: 0px;
  --lateral-return: 0px;
  --step-lift: -18px;
  --body-bob: -6px;
  --body-pulse-x: 0px;
  --body-pulse-rotate: 0deg;
  --joint-a-x: 0px;
  --joint-a-y: 0px;
  --joint-b-x: 0px;
  --joint-b-y: 0px;
  --pitch-rotate: 0deg;
  --body-rotate: 0deg;
  --arm-x: 0px;
  --arm-y: 0px;
  --arm-rotate: 0deg;
  --arm-rest-x: 0px;
  --arm-rest-y: 0px;
  --cycle-duration: 0.8s;
  --motion-duration: 6s;
  left: 4%;
  top: 96px;
  width: 714px;
  height: 367px;
  transform: perspective(900px) translate3d(calc(var(--pose-x) + var(--stride-x)), calc(var(--pose-y) + var(--stride-y)), 0) scale(var(--rig-scale)) rotateZ(calc(var(--pose-rotate) + var(--body-rotate))) rotateX(var(--pitch-rotate));
  filter: drop-shadow(0 26px 32px rgba(0, 0, 0, 0.42));
  transition: transform 0.42s cubic-bezier(0.2, 0.78, 0.24, 1), filter 0.28s ease;
}

.twin-rig[data-pose="walk"],
.twin-rig[data-pose="turn"],
.twin-rig[data-pose="stand"],
.twin-rig[data-pose="stop"] {
  --pose-x: 0px;
  --pose-y: 0px;
}

.twin-rig[data-pose="turn"] {
  --pose-rotate: -3deg;
}

.twin-rig > .rig-body,
.twin-rig > .rig-neck,
.twin-rig > .rig-belly-rail,
.twin-rig > .tail-deck,
.twin-rig > .rig-head,
.twin-rig > .chin-wheel,
.twin-rig > .rig-arm,
.twin-rig > .rig-leg,
.twin-rig > .footprint {
  display: none;
}

.rig-photo-skin {
  left: 0;
  top: 0;
  z-index: 1;
  width: 714px;
  height: 367px;
  object-fit: contain;
  object-position: center;
  opacity: 1;
  image-rendering: auto;
  filter: contrast(1.16) saturate(1.08) brightness(1.02);
  mix-blend-mode: normal;
  clip-path: none;
}

.calibrated-twin-layer {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

.calib-tag {
  position: absolute;
  left: 45.8%;
  top: 11.5%;
  padding: 4px 8px;
  border: 1px solid rgba(56, 189, 248, 0.56);
  border-radius: 4px;
  color: #bae6fd;
  background: rgba(15, 23, 42, 0.64);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0;
}

.grip-lock-ring {
  --arm-idle-rotate: -18deg;
  position: absolute;
  left: 5.1%;
  top: 42.8%;
  width: 12.8%;
  height: 25.6%;
  border: 3px solid rgba(34, 197, 94, 0.92);
  border-radius: 48% 46% 52% 50%;
  box-shadow: 0 0 0 5px rgba(34, 197, 94, 0.12), 0 0 22px rgba(34, 197, 94, 0.34);
  transform: translate(var(--arm-x), var(--arm-y)) rotate(calc(var(--arm-idle-rotate) + var(--arm-rotate)));
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.grip-lock-text {
  --arm-idle-rotate: 0deg;
  position: absolute;
  left: 2.5%;
  top: 36.5%;
  padding: 4px 7px;
  border-radius: 4px;
  color: #dcfce7;
  background: rgba(22, 101, 52, 0.72);
  font-size: 11px;
  font-weight: 900;
  transform: translate(var(--arm-x), var(--arm-y)) rotate(var(--arm-idle-rotate));
  transition: transform 0.35s ease;
}

.arm-vector {
  position: absolute;
  z-index: 8;
  height: 9px;
  border: 1px solid rgba(248, 250, 252, 0.62);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.42), transparent 45%),
    linear-gradient(90deg, rgba(34, 197, 94, 0.28), rgba(34, 197, 94, 0.92), rgba(14, 165, 233, 0.78));
  box-shadow: 0 0 16px rgba(34, 197, 94, 0.34), inset 0 -2px 3px rgba(15, 23, 42, 0.32);
  transform-origin: 0 50%;
  transition: transform 0.35s ease, width 0.35s ease;
}

.arm-vector::before,
.arm-vector::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #052e16;
  border: 1px solid rgba(220, 252, 231, 0.82);
  transform: translateY(-50%);
}

.arm-vector::before { left: -3px; }
.arm-vector::after { right: -3px; }

.arm-vector-base {
  --arm-idle-rotate: -12deg;
  left: 20.5%;
  top: 18%;
  width: 142px;
  transform: translate(var(--arm-x), var(--arm-y)) rotate(calc(var(--arm-idle-rotate) + var(--arm-rotate)));
}

.arm-vector-fore {
  --arm-idle-rotate: 70deg;
  left: 8.2%;
  top: 34%;
  width: 112px;
  transform: translate(var(--arm-x), var(--arm-y)) rotate(calc(var(--arm-idle-rotate) + var(--arm-rotate)));
}

.arm-target-dot {
  --arm-idle-rotate: 0deg;
  position: absolute;
  left: 7.5%;
  top: 48.5%;
  z-index: 9;
  width: 24px;
  height: 24px;
  margin: -12px 0 0 -12px;
  border: 2px solid #dcfce7;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.32);
  box-shadow: 0 0 18px rgba(34, 197, 94, 0.52);
  transform: translate(var(--arm-x), var(--arm-y)) rotate(var(--arm-idle-rotate));
  transition: transform 0.35s ease;
}

.calib-joint {
  position: absolute;
  width: 19px;
  height: 19px;
  margin: -9px 0 0 -9px;
  border: 2px solid #f8fafc;
  border-radius: 999px;
  background:
    radial-gradient(circle at 42% 38%, #e0f2fe 0 12%, #0284c7 13% 46%, #082f49 47% 100%);
  box-shadow: 0 0 0 5px rgba(14, 165, 233, 0.23), 0 0 18px rgba(14, 165, 233, 0.78);
  transition: transform 0.35s ease, background 0.35s ease, box-shadow 0.35s ease;
}

.calib-foot {
  position: absolute;
  width: 68px;
  height: 18px;
  margin: -9px 0 0 -34px;
  border: 2px solid rgba(186, 230, 253, 0.92);
  border-radius: 999px;
  background: rgba(14, 165, 233, 0.22);
  box-shadow: 0 0 14px rgba(14, 165, 233, 0.28);
  transition: transform 0.35s ease, background 0.35s ease;
}

.calib-bone {
  position: absolute;
  height: 9px;
  border-radius: 999px;
  border: 1px solid rgba(226, 232, 240, 0.42);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.42), transparent 45%),
    linear-gradient(90deg, rgba(15, 23, 42, 0.1), rgba(125, 211, 252, 0.9), rgba(34, 197, 94, 0.78));
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.4), inset 0 -2px 3px rgba(15, 23, 42, 0.36);
  transform-origin: 0 50%;
  transition: transform 0.35s ease, width 0.35s ease, opacity 0.35s ease;
}

.calib-bone::before,
.calib-bone::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #020617;
  border: 1px solid rgba(226, 232, 240, 0.64);
  transform: translateY(-50%);
}

.calib-bone::before {
  left: -3px;
}

.calib-bone::after {
  right: -3px;
}

.j-fl-hip { left: 45.3%; top: 49.2%; }
.j-fl-knee { left: 46.6%; top: 65.4%; }
.j-fl-ankle { left: 52.3%; top: 78.8%; }
.j-fr-hip { left: 37.2%; top: 46.4%; }
.j-fr-knee { left: 38.7%; top: 63.2%; }
.j-fr-ankle { left: 30.5%; top: 77.6%; }
.j-rl-hip { left: 74.7%; top: 42.5%; }
.j-rl-knee { left: 78.6%; top: 58.8%; }
.j-rl-ankle { left: 88.1%; top: 72.8%; }
.j-rr-hip { left: 66.2%; top: 45.2%; }
.j-rr-knee { left: 67.7%; top: 56.8%; }
.j-rr-ankle { left: 63.7%; top: 68.2%; }

.f-fl { left: 55.3%; top: 87.8%; transform: rotate(-16deg); }
.f-fr { left: 26.6%; top: 81.4%; transform: rotate(-12deg); }
.f-rl { left: 91.4%; top: 79.8%; transform: rotate(-19deg); }
.f-rr { left: 60.2%; top: 72.6%; transform: rotate(-9deg); }

.bone-front-left-a { left: 45.3%; top: 49.2%; width: 62px; transform: rotate(84deg); }
.bone-front-left-b { left: 46.6%; top: 65.4%; width: 76px; transform: rotate(42deg); }
.bone-front-right-a { left: 37.2%; top: 46.4%; width: 64px; transform: rotate(83deg); opacity: 0.55; }
.bone-front-right-b { left: 38.7%; top: 63.2%; width: 86px; transform: rotate(140deg); opacity: 0.55; }
.bone-rear-left-a { left: 74.7%; top: 42.5%; width: 68px; transform: rotate(74deg); }
.bone-rear-left-b { left: 78.6%; top: 58.8%; width: 92px; transform: rotate(36deg); }
.bone-rear-right-a { left: 66.2%; top: 45.2%; width: 48px; transform: rotate(78deg); opacity: 0.55; }
.bone-rear-right-b { left: 67.7%; top: 56.8%; width: 55px; transform: rotate(118deg); opacity: 0.55; }

.twin-rig[data-pose="walk"] .calib-joint,
.twin-rig[data-pose="turn"] .calib-joint,
.twin-rig[data-pose="stand"] .calib-joint {
  animation: jointPulse 0.8s ease infinite alternate;
}

.twin-rig[data-pose="walk"] .f-fl,
.twin-rig[data-pose="walk"] .f-rr {
  transform: translate(var(--front-step), -24px) rotate(-24deg) scale(1.08);
  background: rgba(34, 197, 94, 0.28);
}

.twin-rig[data-pose="walk"] .f-fr,
.twin-rig[data-pose="walk"] .f-rl {
  transform: translate(var(--rear-step), 14px) rotate(-8deg) scale(0.96);
}

.twin-rig[data-pose="walk"] .j-fl-knee,
.twin-rig[data-pose="walk"] .j-rr-knee {
  transform: translate(22px, -20px);
}

.twin-rig[data-pose="walk"] .j-fr-knee,
.twin-rig[data-pose="walk"] .j-rl-knee {
  transform: translate(-18px, 16px);
}

.twin-rig[data-pose="walk"] .j-fl-ankle,
.twin-rig[data-pose="walk"] .j-rr-ankle {
  transform: translate(18px, -12px);
}

.twin-rig[data-pose="walk"] .j-fr-ankle,
.twin-rig[data-pose="walk"] .j-rl-ankle {
  transform: translate(-20px, 12px);
}

.twin-rig[data-pose="walk"] .bone-front-left-a { transform: rotate(68deg); }
.twin-rig[data-pose="walk"] .bone-front-left-b { width: 92px; transform: rotate(26deg); }
.twin-rig[data-pose="walk"] .bone-front-right-a { transform: rotate(98deg); }
.twin-rig[data-pose="walk"] .bone-front-right-b { width: 98px; transform: rotate(151deg); }
.twin-rig[data-pose="walk"] .bone-rear-left-a { transform: rotate(86deg); }
.twin-rig[data-pose="walk"] .bone-rear-left-b { width: 106px; transform: rotate(27deg); }
.twin-rig[data-pose="walk"] .bone-rear-right-a { transform: rotate(66deg); }
.twin-rig[data-pose="walk"] .bone-rear-right-b { width: 74px; transform: rotate(104deg); }

.twin-rig[data-pose="walk"] .rig-photo-skin {
  animation: bodyStride var(--cycle-duration) ease-in-out infinite alternate;
}

.twin-rig[data-pose="reverse"] .rig-photo-skin,
.twin-rig[data-pose="strafe-left"] .rig-photo-skin,
.twin-rig[data-pose="strafe-right"] .rig-photo-skin,
.twin-rig[data-pose="random-gait"] .rig-photo-skin {
  animation: bodyStride var(--cycle-duration) ease-in-out infinite alternate;
}

.twin-rig[data-pose="reverse"] .f-fl,
.twin-rig[data-pose="reverse"] .f-rr {
  transform: translate(var(--rear-step), 18px) rotate(-8deg) scale(0.96);
}

.twin-rig[data-pose="reverse"] .f-fr,
.twin-rig[data-pose="reverse"] .f-rl {
  transform: translate(var(--front-step), -22px) rotate(-24deg) scale(1.06);
}

.twin-rig[data-pose="strafe-left"] .calib-foot,
.twin-rig[data-pose="strafe-right"] .calib-foot {
  background: rgba(168, 85, 247, 0.24);
  border-color: rgba(216, 180, 254, 0.94);
}

.twin-rig[data-pose="strafe-left"] .f-fl,
.twin-rig[data-pose="strafe-left"] .f-rl,
.twin-rig[data-pose="strafe-right"] .f-fr,
.twin-rig[data-pose="strafe-right"] .f-rr {
  transform: translate(var(--lateral-step), -18px) rotate(-28deg) scale(1.05);
}

.twin-rig[data-pose="strafe-left"] .f-fr,
.twin-rig[data-pose="strafe-left"] .f-rr,
.twin-rig[data-pose="strafe-right"] .f-fl,
.twin-rig[data-pose="strafe-right"] .f-rl {
  transform: translate(var(--lateral-counter-step), 14px) rotate(14deg);
}

.twin-rig[data-pose="turn-right"] .calib-foot {
  background: rgba(250, 204, 21, 0.25);
  border-color: rgba(253, 224, 71, 0.95);
}

.twin-rig[data-pose="turn-right"] .f-fl {
  transform: translate(28px, 8px) rotate(18deg);
}

.twin-rig[data-pose="turn-right"] .f-fr {
  transform: translate(-34px, -10px) rotate(-32deg);
}

.twin-rig[data-pose="turn-right"] .f-rl {
  transform: translate(-24px, 8px) rotate(15deg);
}

.twin-rig[data-pose="turn-right"] .f-rr {
  transform: translate(34px, -8px) rotate(-28deg);
}

.twin-rig[data-pose="random-gait"] .calib-foot,
.twin-rig[data-pose="random-gait"] .calib-joint,
.twin-rig[data-pose="random-gait"] .calib-bone {
  animation: randomGait var(--cycle-duration) ease-in-out infinite alternate;
}

.twin-rig[data-pose="pitch-up"] .rig-photo-skin,
.twin-rig[data-pose="pitch-down"] .rig-photo-skin,
.twin-rig[data-pose="body-up"] .rig-photo-skin,
.twin-rig[data-pose="body-down"] .rig-photo-skin {
  transition: transform 0.4s ease;
}

.twin-rig[data-pose^="arm-"] .arm-vector,
.twin-rig[data-pose^="arm-"] .arm-target-dot,
.twin-rig[data-pose="random-gait"] .arm-vector,
.twin-rig[data-pose="random-gait"] .arm-target-dot {
  animation: armSweep var(--cycle-duration) ease-in-out infinite alternate;
}

.twin-rig[data-pose="turn"] .calib-foot {
  background: rgba(250, 204, 21, 0.25);
  border-color: rgba(253, 224, 71, 0.95);
}

.twin-rig[data-pose="turn"] .f-fl {
  transform: translate(-34px, -10px) rotate(-32deg);
}

.twin-rig[data-pose="turn"] .f-fr {
  transform: translate(28px, 8px) rotate(18deg);
}

.twin-rig[data-pose="turn"] .f-rl {
  transform: translate(34px, -8px) rotate(-28deg);
}

.twin-rig[data-pose="turn"] .f-rr {
  transform: translate(-24px, 8px) rotate(15deg);
}

.twin-rig[data-pose="turn"] .j-fl-hip,
.twin-rig[data-pose="turn"] .j-fl-knee {
  transform: translate(-24px, -12px);
}

.twin-rig[data-pose="turn"] .j-rl-hip,
.twin-rig[data-pose="turn"] .j-rl-knee {
  transform: translate(26px, -10px);
}

.twin-rig[data-pose="turn"] .j-fr-knee,
.twin-rig[data-pose="turn"] .j-rr-knee {
  transform: translate(18px, 10px);
}

.twin-rig[data-pose="turn"] .bone-front-left-a { transform: rotate(58deg); }
.twin-rig[data-pose="turn"] .bone-front-left-b { width: 94px; transform: rotate(18deg); }
.twin-rig[data-pose="turn"] .bone-rear-left-a { transform: rotate(61deg); }
.twin-rig[data-pose="turn"] .bone-rear-left-b { width: 108px; transform: rotate(20deg); }

@keyframes bodyStride {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
  48% { transform: translate3d(var(--body-pulse-x), var(--body-bob), 0) rotate(var(--body-pulse-rotate)); }
  76% { transform: translate3d(0, 6px, 0) rotate(0deg); }
}

@keyframes randomGait {
  from { filter: hue-rotate(0deg); }
  to { filter: hue-rotate(34deg); transform: translate(10px, -10px); }
}

@keyframes armSweep {
  from { filter: brightness(1); }
  to { filter: brightness(1.28); }
}

.twin-rig[data-pose="turn"] .rig-photo-skin,
.twin-rig[data-pose="turn-right"] .rig-photo-skin {
  animation: bodyStride var(--cycle-duration) ease-in-out infinite alternate;
}

.twin-rig[data-pose="walk"] .f-fl,
.twin-rig[data-pose="walk"] .f-rr,
.twin-rig[data-pose="reverse"] .f-fr,
.twin-rig[data-pose="reverse"] .f-rl,
.twin-rig[data-pose="random-gait"] .f-fl,
.twin-rig[data-pose="random-gait"] .f-rr {
  animation: footCycleLead var(--cycle-duration) cubic-bezier(0.32, 0, 0.18, 1) infinite;
}

.twin-rig[data-pose="walk"] .f-fr,
.twin-rig[data-pose="walk"] .f-rl,
.twin-rig[data-pose="reverse"] .f-fl,
.twin-rig[data-pose="reverse"] .f-rr,
.twin-rig[data-pose="random-gait"] .f-fr,
.twin-rig[data-pose="random-gait"] .f-rl {
  animation: footCycleTrail var(--cycle-duration) cubic-bezier(0.32, 0, 0.18, 1) infinite;
}

.twin-rig[data-pose="strafe-left"] .f-fl,
.twin-rig[data-pose="strafe-left"] .f-rl,
.twin-rig[data-pose="strafe-right"] .f-fr,
.twin-rig[data-pose="strafe-right"] .f-rr {
  animation: footCycleLateralLead var(--cycle-duration) cubic-bezier(0.32, 0, 0.18, 1) infinite;
}

.twin-rig[data-pose="strafe-left"] .f-fr,
.twin-rig[data-pose="strafe-left"] .f-rr,
.twin-rig[data-pose="strafe-right"] .f-fl,
.twin-rig[data-pose="strafe-right"] .f-rl {
  animation: footCycleLateralTrail var(--cycle-duration) cubic-bezier(0.32, 0, 0.18, 1) infinite;
}

.twin-rig[data-pose="turn"] .f-fl,
.twin-rig[data-pose="turn"] .f-rr,
.twin-rig[data-pose="turn-right"] .f-fr,
.twin-rig[data-pose="turn-right"] .f-rl {
  animation: footCycleTurnA var(--cycle-duration) cubic-bezier(0.32, 0, 0.18, 1) infinite;
}

.twin-rig[data-pose="turn"] .f-fr,
.twin-rig[data-pose="turn"] .f-rl,
.twin-rig[data-pose="turn-right"] .f-fl,
.twin-rig[data-pose="turn-right"] .f-rr {
  animation: footCycleTurnB var(--cycle-duration) cubic-bezier(0.32, 0, 0.18, 1) infinite;
}

.twin-rig[data-pose="walk"] .j-fl-knee,
.twin-rig[data-pose="walk"] .j-fl-ankle,
.twin-rig[data-pose="walk"] .j-rr-knee,
.twin-rig[data-pose="walk"] .j-rr-ankle,
.twin-rig[data-pose="reverse"] .j-fr-knee,
.twin-rig[data-pose="reverse"] .j-fr-ankle,
.twin-rig[data-pose="reverse"] .j-rl-knee,
.twin-rig[data-pose="reverse"] .j-rl-ankle,
.twin-rig[data-pose="random-gait"] .j-fl-knee,
.twin-rig[data-pose="random-gait"] .j-fl-ankle,
.twin-rig[data-pose="random-gait"] .j-rr-knee,
.twin-rig[data-pose="random-gait"] .j-rr-ankle {
  animation: jointCycleA var(--cycle-duration) ease-in-out infinite;
}

.twin-rig[data-pose="walk"] .j-fr-knee,
.twin-rig[data-pose="walk"] .j-fr-ankle,
.twin-rig[data-pose="walk"] .j-rl-knee,
.twin-rig[data-pose="walk"] .j-rl-ankle,
.twin-rig[data-pose="reverse"] .j-fl-knee,
.twin-rig[data-pose="reverse"] .j-fl-ankle,
.twin-rig[data-pose="reverse"] .j-rr-knee,
.twin-rig[data-pose="reverse"] .j-rr-ankle,
.twin-rig[data-pose="random-gait"] .j-fr-knee,
.twin-rig[data-pose="random-gait"] .j-fr-ankle,
.twin-rig[data-pose="random-gait"] .j-rl-knee,
.twin-rig[data-pose="random-gait"] .j-rl-ankle {
  animation: jointCycleB var(--cycle-duration) ease-in-out infinite;
}

.twin-rig[data-pose="strafe-left"] .calib-joint,
.twin-rig[data-pose="strafe-right"] .calib-joint,
.twin-rig[data-pose="turn"] .calib-joint,
.twin-rig[data-pose="turn-right"] .calib-joint {
  animation: jointCycleA var(--cycle-duration) ease-in-out infinite;
}

.twin-rig[data-pose="walk"] .calib-bone,
.twin-rig[data-pose="reverse"] .calib-bone,
.twin-rig[data-pose="strafe-left"] .calib-bone,
.twin-rig[data-pose="strafe-right"] .calib-bone,
.twin-rig[data-pose="turn"] .calib-bone,
.twin-rig[data-pose="turn-right"] .calib-bone,
.twin-rig[data-pose="random-gait"] .calib-bone {
  animation: boneFlex var(--cycle-duration) ease-in-out infinite;
}

.twin-rig[data-pose^="arm-"] .arm-vector,
.twin-rig[data-pose^="arm-"] .arm-target-dot,
.twin-rig[data-pose^="arm-"] .grip-lock-ring,
.twin-rig[data-pose^="arm-"] .grip-lock-text,
.twin-rig[data-pose="random-gait"] .arm-vector,
.twin-rig[data-pose="random-gait"] .arm-target-dot,
.twin-rig[data-pose="random-gait"] .grip-lock-ring,
.twin-rig[data-pose="random-gait"] .grip-lock-text {
  animation: armReach var(--cycle-duration) ease-in-out infinite;
}

@keyframes footCycleLead {
  0%, 100% { transform: translate(var(--front-return), 12px) rotate(-10deg) scale(0.96); }
  45% { transform: translate(var(--front-step), var(--step-lift)) rotate(-30deg) scale(1.09); }
  70% { transform: translate(var(--front-step), -8px) rotate(-22deg) scale(1.02); }
}

@keyframes footCycleTrail {
  0%, 100% { transform: translate(var(--rear-return), -8px) rotate(-20deg) scale(1.05); }
  50% { transform: translate(var(--rear-step), 18px) rotate(12deg) scale(0.95); }
}

@keyframes footCycleLateralLead {
  0%, 100% { transform: translate(var(--lateral-return), 10px) rotate(8deg) scale(0.96); }
  48% { transform: translate(var(--lateral-step), var(--step-lift)) rotate(-32deg) scale(1.08); }
}

@keyframes footCycleLateralTrail {
  0%, 100% { transform: translate(var(--lateral-counter-step), 16px) rotate(16deg) scale(0.94); }
  52% { transform: translate(var(--lateral-return), -10px) rotate(-18deg) scale(1.04); }
}

@keyframes footCycleTurnA {
  0%, 100% { transform: translate(var(--front-return), 12px) rotate(12deg) scale(0.95); }
  45% { transform: translate(var(--front-step), var(--step-lift)) rotate(-38deg) scale(1.08); }
}

@keyframes footCycleTurnB {
  0%, 100% { transform: translate(var(--rear-return), 8px) rotate(-18deg) scale(0.96); }
  50% { transform: translate(var(--rear-step), -18px) rotate(26deg) scale(1.06); }
}

@keyframes jointCycleA {
  0%, 100% { transform: translate(0, 0) scale(0.96); }
  50% { transform: translate(var(--joint-a-x), var(--joint-a-y)) scale(1.08); }
}

@keyframes jointCycleB {
  0%, 100% { transform: translate(0, 0) scale(1.04); }
  50% { transform: translate(var(--joint-b-x), var(--joint-b-y)) scale(0.96); }
}

@keyframes boneFlex {
  0%, 100% { filter: brightness(0.92); }
  50% { filter: brightness(1.32); }
}

@keyframes armReach {
  0%, 100% { transform: translate(var(--arm-rest-x), var(--arm-rest-y)) rotate(var(--arm-idle-rotate)); }
  52% { transform: translate(var(--arm-x), var(--arm-y)) rotate(calc(var(--arm-idle-rotate) + var(--arm-rotate))); }
}

.twin-rig[data-pose="pitch-up"] .f-fl,
.twin-rig[data-pose="pitch-up"] .f-fr {
  transform: translate(10px, -22px) rotate(-18deg);
}

.twin-rig[data-pose="pitch-up"] .f-rl,
.twin-rig[data-pose="pitch-up"] .f-rr {
  transform: translate(-8px, 18px) rotate(-6deg);
}

.twin-rig[data-pose="pitch-down"] .f-fl,
.twin-rig[data-pose="pitch-down"] .f-fr {
  transform: translate(-10px, 20px) rotate(-6deg);
}

.twin-rig[data-pose="pitch-down"] .f-rl,
.twin-rig[data-pose="pitch-down"] .f-rr {
  transform: translate(10px, -18px) rotate(-18deg);
}

.twin-rig[data-pose="body-up"] .calib-foot {
  transform: translate(0, 30px) rotate(-12deg);
}

.twin-rig[data-pose="body-down"] .calib-foot {
  transform: translate(0, -20px) rotate(-12deg) scale(1.04);
}

.twin-rig[data-pose="stand"] .calib-foot {
  background: rgba(14, 165, 233, 0.18);
}

.twin-rig[data-pose="stop"] .calib-joint,
.twin-rig[data-pose="stop"] .calib-bone,
.twin-rig[data-pose="stop"] .calib-foot {
  opacity: 0.46;
  box-shadow: none;
}

.twin-rig[data-pose="stop"] .grip-lock-ring {
  border-color: rgba(148, 163, 184, 0.8);
  box-shadow: 0 0 0 4px rgba(148, 163, 184, 0.1);
}

.sim-hud {
  position: absolute;
  top: 52px;
  right: 12px;
  display: grid;
  gap: 8px;
  min-width: 150px;
  padding: 12px;
  border-radius: 6px;
  color: #e5edf8;
  background: rgba(15, 23, 42, 0.72);
  font-size: 12px;
}

.sim-hud span {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.axis-widget {
  position: absolute;
  left: 28px;
  bottom: 58px;
  display: grid;
  gap: 2px;
  color: #38bdf8;
  font-weight: 900;
}

.axis-widget span:nth-child(1) { color: #ef4444; }
.axis-widget span:nth-child(2) { color: #22c55e; }
.axis-widget span:nth-child(3) { color: #38bdf8; }

/* Part-level digital twin. The photo is now only a low-opacity reference layer;
   the simulated dog is controlled through individual body, arm and leg nodes. */
.twin-rig {
  --fl-hip: 8deg;
  --fl-thigh: -28deg;
  --fl-shank: -38deg;
  --fr-hip: 20deg;
  --fr-thigh: 18deg;
  --fr-shank: -22deg;
  --rl-hip: 6deg;
  --rl-thigh: -24deg;
  --rl-shank: -34deg;
  --rr-hip: 18deg;
  --rr-thigh: 16deg;
  --rr-shank: -20deg;
  --arm-base-angle: -14deg;
  --arm-fore-angle: 72deg;
  --gripper-angle: -12deg;
  --body-shell-y: 0px;
  --body-shell-rotate: 0deg;
  --body-pulse-x-neg: 0px;
  --body-pulse-rotate-neg: 0deg;
  --arm-rig-rotate: 0deg;
}

.twin-rig > .rig-body,
.twin-rig > .rig-neck,
.twin-rig > .rig-belly-rail,
.twin-rig > .tail-deck,
.twin-rig > .rig-head,
.twin-rig > .chin-wheel,
.twin-rig > .rig-arm,
.twin-rig > .rig-leg,
.twin-rig > .footprint {
  display: block !important;
}

.twin-rig .rig-photo-skin {
  z-index: 0;
  opacity: 0.16 !important;
  filter: grayscale(0.25) contrast(1.08) brightness(0.72) !important;
  mix-blend-mode: screen !important;
  animation: none !important;
  transform: none !important;
}

.twin-rig .calibrated-twin-layer {
  opacity: 0.32;
}

.twin-rig .calib-tag {
  color: #cffafe;
  background: rgba(8, 47, 73, 0.78);
}

.twin-rig .rig-body {
  left: 178px;
  top: 76px;
  z-index: 5;
  width: 318px;
  height: 86px;
  border: 1px solid rgba(203, 213, 225, 0.44);
  border-radius: 6px;
  background:
    linear-gradient(135deg, transparent 0 8%, rgba(15, 23, 42, 0.96) 8% 78%, transparent 78%),
    linear-gradient(180deg, #273142, #0b1018 58%, #020617);
  clip-path: polygon(4% 32%, 11% 8%, 76% 5%, 99% 27%, 90% 87%, 14% 93%);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.16), 0 18px 26px rgba(0, 0, 0, 0.34);
  transform: translateY(var(--body-shell-y)) rotate(var(--body-shell-rotate)) !important;
  transform-origin: 52% 68%;
  transition: transform 0.32s ease;
}

.twin-rig .body-panel {
  position: absolute;
  display: block;
  background: linear-gradient(180deg, #374151, #111827);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.18);
}

.twin-rig .body-nose {
  left: -22px;
  top: 30px;
  width: 48px;
  height: 42px;
  border-radius: 4px;
  transform: skewX(-20deg);
}

.twin-rig .body-tail {
  right: -26px;
  top: 22px;
  width: 64px;
  height: 50px;
  border-radius: 4px;
  transform: skewX(18deg);
}

.twin-rig .body-vents {
  position: absolute;
  right: 86px;
  top: 42px;
  width: 58px;
  height: 26px;
  background: repeating-linear-gradient(90deg, #020617 0 6px, transparent 6px 13px);
  opacity: 0.86;
}

.twin-rig .body-stripe {
  position: absolute;
  right: 20px;
  top: 48px;
  width: 72px;
  height: 18px;
  background: linear-gradient(90deg, rgba(226, 232, 240, 0.28), rgba(226, 232, 240, 0.72));
  clip-path: polygon(0 0, 100% 0, 82% 100%, 0 100%);
}

.twin-rig .rig-brand {
  left: 122px;
  top: 30px;
  color: #f8fafc;
  font-size: 24px;
  letter-spacing: 0;
}

.twin-rig .rig-model {
  right: 34px;
  top: 30px;
  color: #f8fafc;
  font-size: 28px;
  transform: skewX(-14deg);
}

.twin-rig .rig-head {
  left: 108px;
  top: 102px;
  z-index: 8;
  width: 74px;
  height: 66px;
  border: 4px solid #111827;
  border-radius: 8px;
  background: linear-gradient(180deg, #1f2937, #030712);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.16), 0 14px 20px rgba(0, 0, 0, 0.38);
  transform: translateY(var(--body-shell-y)) rotate(var(--body-shell-rotate)) !important;
}

.twin-rig .rig-head i {
  top: 25px;
  width: 15px;
  height: 25px;
  background: #7c3aed;
  box-shadow: 0 0 16px rgba(124, 58, 237, 1);
}

.twin-rig .rig-head i:first-child { left: 19px; }
.twin-rig .rig-head i:last-child { right: 19px; }

.twin-rig .rig-neck {
  left: 152px;
  top: 126px;
  z-index: 6;
  width: 52px;
  height: 24px;
  border-radius: 999px;
  background: linear-gradient(180deg, #1f2937, #020617);
  transform: translateY(var(--body-shell-y)) rotate(-8deg) !important;
}

.twin-rig .tail-deck {
  left: 504px;
  top: 82px;
  z-index: 4;
  width: 92px;
  height: 38px;
  border-radius: 4px;
  background: linear-gradient(180deg, #374151, #111827);
  clip-path: polygon(0 30%, 88% 0, 100% 70%, 18% 100%);
  transform: translateY(var(--body-shell-y)) rotate(-7deg) !important;
}

.twin-rig .rig-belly-rail {
  left: 198px;
  top: 166px;
  z-index: 3;
  width: 278px;
  height: 18px;
  border-radius: 999px;
  background: #05070b;
  transform: translateY(var(--body-shell-y)) rotate(-2deg) !important;
}

.twin-rig .chin-wheel {
  left: 110px;
  top: 190px;
  z-index: 7;
  width: 56px;
  height: 22px;
}

.twin-rig .rig-arm {
  left: 20px;
  top: 38px;
  z-index: 9;
  width: 178px;
  height: 238px;
  transform: translate(var(--arm-x), var(--arm-y)) rotate(var(--arm-rig-rotate)) !important;
  transform-origin: 124px 54px;
  transition: transform 0.34s ease;
}

.twin-rig .arm-base {
  left: 72px;
  top: 44px;
  width: 122px;
  transform: rotate(var(--arm-base-angle)) !important;
}

.twin-rig .arm-fore {
  left: 12px;
  top: 108px;
  width: 124px;
  transform: rotate(var(--arm-fore-angle)) !important;
}

.twin-rig .gripper {
  left: -16px;
  top: 178px;
  z-index: 8;
  transform: rotate(var(--gripper-angle)) !important;
}

.twin-rig .grip-ball {
  width: 72px;
  height: 62px;
  transform: rotate(-8deg) scale(1.02) !important;
}

.twin-rig .rig-leg {
  z-index: 4;
  width: 94px;
  height: 198px;
  transform-origin: 44px 0;
  transition: transform 0.28s ease;
}

.twin-rig .leg-front-left { left: 196px; top: 142px; z-index: 7; opacity: 1; filter: none; }
.twin-rig .leg-front-right { left: 142px; top: 136px; z-index: 3; opacity: 0.62; filter: brightness(0.7); }
.twin-rig .leg-rear-left { left: 468px; top: 132px; z-index: 7; opacity: 1; filter: none; }
.twin-rig .leg-rear-right { left: 384px; top: 128px; z-index: 3; opacity: 0.68; filter: brightness(0.74); }

.twin-rig .leg-segment {
  width: 17px;
  border-radius: 6px;
  border: 1px solid rgba(203, 213, 225, 0.34);
  background:
    linear-gradient(90deg, #020617 0 18%, #111827 19% 48%, #697386 49% 59%, #0b1120 60% 100%);
  transform-origin: 50% 9px;
  transition: transform 0.24s ease;
}

.twin-rig .leg-front-left .hip { transform: rotate(var(--fl-hip)) !important; }
.twin-rig .leg-front-left .thigh { transform: rotate(var(--fl-thigh)) !important; }
.twin-rig .leg-front-left .shank { transform: rotate(var(--fl-shank)) !important; }
.twin-rig .leg-front-right .hip { transform: rotate(var(--fr-hip)) !important; }
.twin-rig .leg-front-right .thigh { transform: rotate(var(--fr-thigh)) !important; }
.twin-rig .leg-front-right .shank { transform: rotate(var(--fr-shank)) !important; }
.twin-rig .leg-rear-left .hip { transform: rotate(var(--rl-hip)) !important; }
.twin-rig .leg-rear-left .thigh { transform: rotate(var(--rl-thigh)) !important; }
.twin-rig .leg-rear-left .shank { transform: rotate(var(--rl-shank)) !important; }
.twin-rig .leg-rear-right .hip { transform: rotate(var(--rr-hip)) !important; }
.twin-rig .leg-rear-right .thigh { transform: rotate(var(--rr-thigh)) !important; }
.twin-rig .leg-rear-right .shank { transform: rotate(var(--rr-shank)) !important; }

.twin-rig .foot {
  width: 70px;
  height: 24px;
  background: linear-gradient(180deg, #111827, #020617 70%, #000);
}

.twin-rig[data-pose="walk"] .leg-front-left,
.twin-rig[data-pose="walk"] .leg-rear-right,
.twin-rig[data-pose="reverse"] .leg-front-right,
.twin-rig[data-pose="reverse"] .leg-rear-left,
.twin-rig[data-pose="random-gait"] .leg-front-left,
.twin-rig[data-pose="random-gait"] .leg-rear-right {
  animation: partLegPhaseA var(--cycle-duration) ease-in-out infinite;
}

.twin-rig[data-pose="walk"] .leg-front-right,
.twin-rig[data-pose="walk"] .leg-rear-left,
.twin-rig[data-pose="reverse"] .leg-front-left,
.twin-rig[data-pose="reverse"] .leg-rear-right,
.twin-rig[data-pose="random-gait"] .leg-front-right,
.twin-rig[data-pose="random-gait"] .leg-rear-left {
  animation: partLegPhaseB var(--cycle-duration) ease-in-out infinite;
}

.twin-rig[data-pose="strafe-left"] .rig-leg,
.twin-rig[data-pose="strafe-right"] .rig-leg {
  animation: partLegStrafe var(--cycle-duration) ease-in-out infinite;
}

.twin-rig[data-pose="turn"] .rig-leg,
.twin-rig[data-pose="turn-right"] .rig-leg {
  animation: partLegTurn var(--cycle-duration) ease-in-out infinite;
}

.twin-rig[data-pose="walk"] .rig-body,
.twin-rig[data-pose="reverse"] .rig-body,
.twin-rig[data-pose="strafe-left"] .rig-body,
.twin-rig[data-pose="strafe-right"] .rig-body,
.twin-rig[data-pose="turn"] .rig-body,
.twin-rig[data-pose="turn-right"] .rig-body,
.twin-rig[data-pose="random-gait"] .rig-body {
  animation: partBodyPulse var(--cycle-duration) ease-in-out infinite;
}

.twin-rig[data-pose^="arm-"] .rig-arm,
.twin-rig[data-pose="random-gait"] .rig-arm {
  animation: partArmPulse var(--cycle-duration) ease-in-out infinite;
}

@keyframes partLegPhaseA {
  0%, 100% { transform: translate(0, 4px) rotate(-1deg); }
  45% { transform: translate(var(--body-pulse-x), var(--step-lift)) rotate(-7deg); }
  72% { transform: translate(0, -4px) rotate(2deg); }
}

@keyframes partLegPhaseB {
  0%, 100% { transform: translate(0, -4px) rotate(2deg); }
  50% { transform: translate(var(--body-pulse-x-neg), 14px) rotate(7deg); }
}

@keyframes partLegStrafe {
  0%, 100% { transform: translate(var(--lateral-return), 5px); }
  50% { transform: translate(var(--lateral-step), var(--step-lift)); }
}

@keyframes partLegTurn {
  0%, 100% { transform: translate(0, 4px) rotate(var(--body-pulse-rotate-neg)); }
  50% { transform: translate(var(--body-pulse-x), var(--step-lift)) rotate(var(--body-pulse-rotate)); }
}

@keyframes partBodyPulse {
  0%, 100% { transform: translateY(var(--body-shell-y)) rotate(var(--body-shell-rotate)); }
  50% { transform: translateY(calc(var(--body-shell-y) + var(--body-bob))) rotate(calc(var(--body-shell-rotate) + var(--body-pulse-rotate))); }
}

@keyframes partArmPulse {
  0%, 100% { transform: translate(var(--arm-rest-x), var(--arm-rest-y)) rotate(0deg); }
  55% { transform: translate(var(--arm-x), var(--arm-y)) rotate(var(--arm-rig-rotate)); }
}

.sim-controls {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: 38px 38px 1fr 48px;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  color: #ffffff;
  background: rgba(15, 23, 42, 0.82);
}

.sim-controls button {
  border: 0;
  color: #ffffff;
  background: transparent;
  font-size: 18px;
}

.sim-controls span {
  height: 5px;
  border-radius: 999px;
  background: linear-gradient(90deg, #1f6feb 42%, rgba(255, 255, 255, 0.22) 42%);
}

.replay-strip {
  margin: 8px;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 10px;
}

.replay-strip strong {
  display: block;
  margin-bottom: 10px;
}

.replay-steps {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
}

.replay-steps span {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 10px;
  border: 1px solid #d9e4f0;
  border-radius: 8px;
  color: #334155;
  background: #f8fbff;
  font-size: 12px;
}

.replay-steps span.is-done,
.replay-steps span.is-active {
  border-color: #10a66e;
}

.replay-steps span.is-active {
  background: #ecfdf5;
}

.replay-steps small {
  color: #64748b;
}

.real-camera {
  position: relative;
  margin: 8px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid #dbe5f1;
}

.real-camera img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.real-camera span,
.real-camera b {
  position: absolute;
  top: 8px;
  padding: 4px 8px;
  border-radius: 4px;
  color: #ffffff;
  background: rgba(15, 23, 42, 0.72);
  font-size: 12px;
}

.real-camera span { left: 8px; }
.real-camera b { right: 8px; }

.robot-quality {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px;
  color: #475569;
  font-size: 12px;
}

.robot-quality b {
  color: #0f9f6e;
}

.robot-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 8px;
}

.robot-metrics div {
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 10px;
  background: #ffffff;
}

.confirm-card {
  margin: 8px;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 12px;
}

.confirm-card p {
  margin: 10px 0 0;
  color: #475569;
  font-size: 13px;
}

.student-bottom-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.75fr) minmax(420px, 1fr);
  gap: 8px;
  margin-top: 8px;
}

.score-cards {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  padding: 14px;
}

.score-cards div {
  min-height: 130px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 14px;
  background: #ffffff;
}

.score-cards span,
.score-cards small {
  display: block;
  color: #64748b;
}

.score-cards strong {
  display: block;
  margin: 20px 0 18px;
  color: #0f9f6e;
  font-size: 30px;
  font-weight: 500;
}

.score-cards .round-score strong {
  width: 78px;
  height: 78px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 12px 0 8px;
  border: 6px solid #1f6feb;
  border-right-color: #0f9f6e;
  border-radius: 999px;
  font-size: 26px;
}

.rubric-panel table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.rubric-panel th,
.rubric-panel td {
  padding: 10px;
  border-bottom: 1px solid #e2e8f0;
  text-align: left;
}

.rubric-panel th {
  color: #475569;
  background: #f8fbff;
}

.console-log-list {
  display: grid;
  gap: 0;
  max-height: 220px;
  overflow: auto;
  padding: 0;
}

.console-log-list code {
  display: grid;
  grid-template-columns: 96px 52px 120px 1fr;
  gap: 10px;
  padding: 9px 12px;
  border-bottom: 1px solid #e2e8f0;
  color: #334155;
  font-size: 12px;
  font-family: inherit;
}

@media (max-width: 1420px) {
  .console-topbar,
  .student-main-grid,
  .student-bottom-grid {
    grid-template-columns: 1fr;
  }

  .course-strip {
    justify-content: flex-start;
    flex-wrap: wrap;
    white-space: normal;
  }
}

/* Final simulator pass: make the moving component model the primary dog. */
.sim-scene .twin-rig {
  --root-x: 0px;
  --root-y: 0px;
  --rig-scale: 0.86;
  left: 6%;
  top: 72px;
  width: 720px;
  height: 360px;
  transform:
    perspective(900px)
    translate3d(var(--root-x), var(--root-y), 0)
    scale(var(--rig-scale))
    rotateZ(calc(-2deg + var(--body-rotate)))
    rotateX(var(--pitch-rotate)) !important;
  transform-origin: 48% 58%;
  filter: drop-shadow(0 28px 30px rgba(0, 0, 0, 0.46));
}

.sim-scene .twin-rig .rig-photo-skin {
  opacity: 0.045 !important;
  filter: grayscale(0.35) contrast(1.2) brightness(0.66) !important;
  mix-blend-mode: screen !important;
}

.sim-scene .twin-rig .calibrated-twin-layer {
  opacity: 0.18;
}

.sim-scene .twin-rig .calib-tag,
.sim-scene .twin-rig .grip-lock-text {
  opacity: 0.72;
}

.sim-scene .twin-rig .rig-body {
  left: 184px;
  top: 82px;
  width: 350px;
  height: 88px;
  border: 1px solid rgba(226, 232, 240, 0.5);
  background:
    linear-gradient(110deg, transparent 0 6%, rgba(15, 23, 42, 0.96) 6% 19%, transparent 19%),
    linear-gradient(104deg, #0b1018 0 23%, #2c3442 24% 43%, #6b7280 44% 58%, #1f2937 59% 82%, #05070b 83% 100%);
  clip-path: polygon(4% 27%, 15% 8%, 76% 4%, 100% 30%, 89% 83%, 18% 96%, 0 63%);
  box-shadow:
    0 18px 28px rgba(0, 0, 0, 0.42),
    inset 0 1px rgba(255, 255, 255, 0.2),
    inset 0 -20px 28px rgba(0, 0, 0, 0.42);
}

.sim-scene .twin-rig .body-nose {
  left: -26px;
  top: 32px;
  width: 58px;
  height: 42px;
  background: linear-gradient(135deg, #111827, #374151 58%, #030712);
  clip-path: polygon(18% 4%, 100% 14%, 76% 86%, 0 100%, 0 38%);
}

.sim-scene .twin-rig .body-tail {
  right: -34px;
  top: 20px;
  width: 78px;
  height: 52px;
  background: linear-gradient(135deg, #3d4656, #0b1018);
  clip-path: polygon(0 18%, 78% 0, 100% 38%, 78% 100%, 12% 86%);
}

.sim-scene .twin-rig .body-vents {
  right: 104px;
  top: 48px;
  width: 72px;
  height: 22px;
  background: repeating-linear-gradient(90deg, #020617 0 6px, transparent 6px 13px);
}

.sim-scene .twin-rig .body-stripe {
  right: 22px;
  top: 37px;
  width: 102px;
  height: 34px;
  border-top: 4px solid rgba(248, 250, 252, 0.82);
  border-bottom: 4px solid rgba(248, 250, 252, 0.42);
  background: transparent;
  transform: skewX(-18deg);
}

.sim-scene .twin-rig .rig-brand {
  left: 132px;
  top: 31px;
  font-size: 26px;
}

.sim-scene .twin-rig .rig-model {
  right: 40px;
  top: 32px;
  font-size: 30px;
}

.sim-scene .twin-rig .top-imu {
  left: 206px;
  top: 6px;
}

.sim-scene .twin-rig .rig-head {
  left: 104px;
  top: 116px;
  width: 76px;
  height: 66px;
  border-width: 5px;
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(71, 85, 105, 0.42), transparent 46%),
    #030712;
}

.sim-scene .twin-rig .rig-neck {
  left: 152px;
  top: 132px;
  width: 60px;
}

.sim-scene .twin-rig .rig-belly-rail {
  left: 186px;
  top: 176px;
  width: 322px;
}

.sim-scene .twin-rig .tail-deck {
  left: 506px;
  top: 78px;
}

.sim-scene .twin-rig .chin-wheel {
  left: 110px;
  top: 206px;
  width: 64px;
  height: 24px;
  border-radius: 999px;
}

.sim-scene .twin-rig .rig-arm {
  left: 24px;
  top: 44px;
  width: 184px;
  height: 252px;
}

.sim-scene .twin-rig .arm-link {
  height: 22px;
  border-radius: 5px;
  background:
    linear-gradient(90deg, #020617 0 18%, #1f2937 19% 48%, #697386 49% 60%, #0b1120 61% 100%);
}

.sim-scene .twin-rig .arm-base {
  left: 78px;
  top: 42px;
  width: 126px;
}

.sim-scene .twin-rig .arm-fore {
  left: 18px;
  top: 112px;
  width: 124px;
}

.sim-scene .twin-rig .gripper {
  left: -10px;
  top: 184px;
  width: 66px;
  height: 48px;
  border-width: 5px;
  border-radius: 18px 18px 24px 24px;
}

.sim-scene .twin-rig .grip-ball {
  left: -20px;
  top: 5px;
  width: 78px;
  height: 66px;
}

.sim-scene .twin-rig .rig-leg {
  width: 104px;
  height: 220px;
  transform-origin: 50px 8px;
}

.sim-scene .twin-rig .leg-front-left { left: 198px; top: 148px; z-index: 9; opacity: 1; filter: none; }
.sim-scene .twin-rig .leg-front-right { left: 132px; top: 142px; z-index: 3; opacity: 0.64; filter: brightness(0.68); }
.sim-scene .twin-rig .leg-rear-left { left: 470px; top: 138px; z-index: 9; opacity: 1; filter: none; }
.sim-scene .twin-rig .leg-rear-right { left: 382px; top: 134px; z-index: 3; opacity: 0.7; filter: brightness(0.72); }

.sim-scene .twin-rig .leg-segment {
  width: 19px;
  border-radius: 5px;
  border-color: rgba(203, 213, 225, 0.48);
  background:
    linear-gradient(90deg, #020617 0 18%, #1f2937 19% 48%, #737b8a 49% 60%, #0b1120 61% 100%);
  box-shadow:
    0 9px 15px rgba(0, 0, 0, 0.42),
    inset 0 1px rgba(255, 255, 255, 0.18);
}

.sim-scene .twin-rig .leg-segment.hip {
  left: 42px;
  top: 0;
  height: 68px;
}

.sim-scene .twin-rig .leg-segment.thigh {
  left: 38px;
  top: 62px;
  height: 80px;
}

.sim-scene .twin-rig .leg-segment.shank {
  left: 52px;
  top: 128px;
  height: 74px;
}

.sim-scene .twin-rig .joint {
  width: 21px;
  height: 21px;
  border-width: 3px;
  border-color: #1f2937;
}

.sim-scene .twin-rig .hip-joint { left: 41px; top: -8px; }
.sim-scene .twin-rig .knee-joint { left: 36px; top: 60px; }
.sim-scene .twin-rig .ankle-joint { left: 51px; top: 128px; }

.sim-scene .twin-rig .foot {
  left: 42px;
  top: 194px;
  width: 74px;
  height: 26px;
  border-radius: 999px 999px 15px 15px;
}

.sim-scene .twin-rig .leg-front-right .foot,
.sim-scene .twin-rig .leg-rear-right .foot {
  left: 28px;
}

.sim-scene .twin-rig[data-pose="walk"] .rig-leg,
.sim-scene .twin-rig[data-pose="reverse"] .rig-leg,
.sim-scene .twin-rig[data-pose="strafe-left"] .rig-leg,
.sim-scene .twin-rig[data-pose="strafe-right"] .rig-leg,
.sim-scene .twin-rig[data-pose="turn"] .rig-leg,
.sim-scene .twin-rig[data-pose="turn-right"] .rig-leg,
.sim-scene .twin-rig[data-pose="random-gait"] .rig-leg {
  animation-duration: var(--cycle-duration);
}

.sim-scene .twin-rig[data-pose="walk"] .rig-body,
.sim-scene .twin-rig[data-pose="reverse"] .rig-body,
.sim-scene .twin-rig[data-pose="strafe-left"] .rig-body,
.sim-scene .twin-rig[data-pose="strafe-right"] .rig-body,
.sim-scene .twin-rig[data-pose="turn"] .rig-body,
.sim-scene .twin-rig[data-pose="turn-right"] .rig-body,
.sim-scene .twin-rig[data-pose="random-gait"] .rig-body,
.sim-scene .twin-rig[data-pose="stand"] .rig-body {
  animation: partBodyPulse var(--cycle-duration) ease-in-out infinite;
}

.professional-sim-layer[hidden],
.sim-mode-banner[hidden] {
  display: none !important;
}

.professional-sim-layer {
  position: absolute;
  inset: 0;
  z-index: 9;
  overflow: hidden;
  background: #020617;
}

.professional-sim-layer iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: #020617;
  transform-origin: center;
  transition: transform 0.2s ease;
}

.professional-sim-status,
.sim-mode-banner {
  position: absolute;
  z-index: 12;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: min(620px, calc(100% - 32px));
  border: 1px solid rgba(125, 211, 252, 0.34);
  border-radius: 6px;
  padding: 8px 10px;
  color: #e0f2fe;
  background: rgba(8, 47, 73, 0.76);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.26);
}

.professional-sim-status {
  left: 16px;
  top: 14px;
  max-width: calc(100% - 250px);
}

.sim-mode-banner {
  left: 140px;
  top: 14px;
}

.professional-sim-status strong,
.sim-mode-banner strong {
  font-weight: 900;
  white-space: nowrap;
}

.professional-sim-status span,
.sim-mode-banner span {
  color: #bae6fd;
  font-size: 12px;
}

.sim-scene.is-professional .scene-grid,
.sim-scene.is-professional .sim-route,
.sim-scene.is-professional .twin-rig,
.sim-scene.is-professional .joint-state-grid,
.sim-scene.is-professional .sim-reference,
.sim-scene.is-professional .axis-widget {
  opacity: 0;
  pointer-events: none;
}

.sim-scene.is-professional .sim-hud,
.sim-scene.is-professional .sim-controls {
  z-index: 13;
}

@media (max-width: 620px) {
  .sim-view-toolbar output {
    display: none;
  }

  .professional-sim-status {
    max-width: calc(100% - 190px);
  }

  .professional-sim-status span {
    display: none;
  }
}

/* Course-driven learning workflow */
.course-picker {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 7px 10px;
  padding: 10px 12px;
  border-bottom: 1px solid #dce5ef;
  background: #f8fafc;
}

.course-picker > label {
  align-self: center;
  color: #334155;
  font-size: 12px;
  font-weight: 800;
}

.course-picker select {
  min-width: 0;
  height: 34px;
  border: 1px solid #b9c9db;
  border-radius: 5px;
  padding: 0 9px;
  color: #0f172a;
  background: #ffffff;
  font-weight: 700;
}

.course-picker-meta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  color: #64748b;
  font-size: 11px;
}

.course-picker-meta strong {
  color: #1768c5;
}

.course-cue-card {
  margin: 8px;
  border: 1px solid #cbd8e6;
  border-left: 3px solid #1f6feb;
  border-radius: 5px;
  padding: 9px;
  background: #f7fbff;
}

.course-cue-card > div:first-child {
  display: grid;
  gap: 3px;
  margin-bottom: 8px;
}

.course-cue-card span {
  color: #64748b;
  font-size: 10px;
  font-weight: 800;
}

.course-cue-card strong {
  color: #17375e;
  font-size: 12px;
  line-height: 1.45;
}

.course-cue-list {
  display: flex;
  gap: 5px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.course-cue-list button {
  flex: 0 0 auto;
  max-width: 180px;
  min-height: 27px;
  border: 1px solid #cbd8e6;
  border-radius: 4px;
  padding: 4px 7px;
  overflow: hidden;
  color: #475569;
  background: #ffffff;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  font-size: 10px;
}

.course-cue-list button.is-active {
  border-color: #1f6feb;
  color: #0b5bd3;
  background: #eaf3ff;
}

.video-interaction-panel {
  margin: 8px;
  border: 1px solid #cbd8e6;
  border-left: 3px solid #94a3b8;
  border-radius: 5px;
  padding: 10px;
  background: #ffffff;
}

.video-interaction-panel.is-interactive {
  border-left-color: #0f9f6e;
  background: #f5fffb;
}

.video-interaction-head,
.course-achievement-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.video-interaction-head > div {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.video-interaction-head span,
.video-interaction-actions label span,
.course-achievement-head span {
  color: #64748b;
  font-size: 10px;
  font-weight: 800;
}

.video-interaction-head strong {
  overflow: hidden;
  color: #17375e;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-interaction-panel p {
  margin: 8px 0 6px;
  color: #334155;
  font-size: 11px;
  line-height: 1.55;
}

.video-interaction-panel ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  margin: 0 0 8px;
  padding-left: 17px;
  color: #526579;
  font-size: 10px;
}

.video-interaction-actions {
  display: grid;
  grid-template-columns: minmax(110px, 0.8fr) 1fr 1fr;
  gap: 6px;
  align-items: end;
}

.video-interaction-actions label {
  display: grid;
  gap: 3px;
}

.video-interaction-actions [hidden] {
  display: none;
}

.video-interaction-actions select,
.video-interaction-actions button {
  width: 100%;
  min-width: 0;
  min-height: 34px;
  border-radius: 5px;
}

.video-interaction-actions select {
  border: 1px solid #b9c9db;
  padding: 0 7px;
  color: #17375e;
  background: #ffffff;
  font-weight: 700;
}

#videoInteractionStatus {
  display: block;
  margin-top: 7px;
  color: #087a55;
  font-size: 10px;
  font-weight: 800;
}

.course-achievement-strip {
  margin: 0 8px 8px;
  border-top: 1px solid #dce5ef;
  border-bottom: 1px solid #dce5ef;
  padding: 9px 2px;
}

.course-achievement-head strong {
  color: #17375e;
  font-size: 12px;
}

.course-achievement-head span {
  color: #855400;
}

.course-achievement-stages {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin-top: 7px;
}

.course-achievement-stages > div {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 5px;
  min-height: 32px;
  border: 1px solid #dce5ef;
  border-radius: 4px;
  padding: 5px 7px;
  color: #64748b;
  background: #f8fafc;
}

.course-achievement-stages b {
  display: grid;
  place-items: center;
  min-width: 20px;
  height: 20px;
  border-radius: 50%;
  color: #64748b;
  background: #e2e8f0;
  font-size: 8px;
}

.course-achievement-stages span {
  min-width: 0;
  overflow: hidden;
  font-size: 10px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.course-achievement-stages small {
  font-size: 9px;
}

.course-achievement-stages > div.is-earned {
  border-color: #83d7b5;
  color: #087a55;
  background: #ecfdf5;
}

.course-achievement-stages > div.is-earned b {
  color: #ffffff;
  background: #0f9f6e;
}

.course-practice-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  padding: 8px;
  border-top: 1px solid #dce5ef;
}

.course-practice-actions button {
  min-height: 35px;
  border-radius: 5px;
}

.flow-node.observation-node {
  border-color: #0f9f6e;
  color: #087a55;
  background: #ecfdf5;
}

.course-scenario-layer {
  position: absolute;
  inset: 42px 4% 58px;
  z-index: 1;
  pointer-events: none;
}

.course-scenario-layer > span {
  position: absolute;
  display: none;
}

.scenario-boundary {
  inset: 12% 5% 5%;
  border: 2px dashed rgba(248, 113, 113, 0.78);
  box-shadow: inset 0 0 0 999px rgba(127, 29, 29, 0.04);
}

.scenario-marker {
  bottom: 9%;
  width: 34px;
  height: 34px;
  border: 2px solid #7dd3fc;
  border-radius: 50%;
  color: #e0f2fe;
  background: rgba(3, 105, 161, 0.78);
  text-align: center;
  font: 800 14px/30px sans-serif;
}

.marker-a { left: 9%; }
.marker-b { right: 12%; }

.scenario-target {
  right: 12%;
  bottom: 20%;
  width: 68px;
  height: 68px;
  border: 8px double rgba(250, 204, 21, 0.9);
  border-radius: 50%;
  background: rgba(202, 138, 4, 0.18);
}

.scenario-obstacle {
  bottom: 12%;
  width: 52px;
  height: 76px;
  border: 1px solid rgba(148, 163, 184, 0.65);
  background: repeating-linear-gradient(135deg, #f59e0b 0 10px, #1f2937 10px 20px);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.3);
}

.obstacle-a { left: 25%; }
.obstacle-b { right: 28%; bottom: 28%; }

.scenario-console {
  right: 6%;
  top: 22%;
  width: 132px;
  height: 76px;
  border: 1px solid #38bdf8;
  border-radius: 4px;
  background:
    linear-gradient(#38bdf8, #38bdf8) 14px 16px / 62% 4px no-repeat,
    linear-gradient(#22c55e, #22c55e) 14px 32px / 42% 4px no-repeat,
    rgba(7, 35, 61, 0.82);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

.course-scenario-layer[data-scenario="safety_zone"] .scenario-boundary,
.course-scenario-layer[data-scenario="calibration_bay"] .scenario-boundary,
.course-scenario-layer[data-scenario="sync_test_track"] .scenario-boundary,
.course-scenario-layer[data-scenario="capstone_arena"] .scenario-boundary,
.course-scenario-layer[data-scenario="rescue_patrol"] .scenario-boundary {
  display: block;
}

.course-scenario-layer[data-scenario="speed_track"] .scenario-marker,
.course-scenario-layer[data-scenario="coordinate_grid"] .scenario-marker,
.course-scenario-layer[data-scenario="prediction_track"] .scenario-marker,
.course-scenario-layer[data-scenario="sync_test_track"] .scenario-marker,
.course-scenario-layer[data-scenario="closed_loop_lab"] .scenario-marker {
  display: block;
}

.course-scenario-layer[data-scenario="maze"] .scenario-obstacle,
.course-scenario-layer[data-scenario="vision_lab"] .scenario-obstacle,
.course-scenario-layer[data-scenario="vision_behavior_lab"] .scenario-obstacle,
.course-scenario-layer[data-scenario="rescue_patrol"] .scenario-obstacle,
.course-scenario-layer[data-scenario="capstone_arena"] .scenario-obstacle {
  display: block;
}

.course-scenario-layer[data-scenario="manipulator_bench"] .scenario-target,
.course-scenario-layer[data-scenario="ball_transport"] .scenario-target,
.course-scenario-layer[data-scenario="vision_lab"] .scenario-target,
.course-scenario-layer[data-scenario="capstone_arena"] .scenario-target {
  display: block;
}

.course-scenario-layer[data-scenario="anatomy_lab"] .scenario-console,
.course-scenario-layer[data-scenario="pose_lab"] .scenario-console,
.course-scenario-layer[data-scenario="attitude_platform"] .scenario-console,
.course-scenario-layer[data-scenario="gait_lab"] .scenario-console,
.course-scenario-layer[data-scenario="workflow_cell"] .scenario-console,
.course-scenario-layer[data-scenario="telemetry_lab"] .scenario-console,
.course-scenario-layer[data-scenario="digital_twin_bay"] .scenario-console,
.course-scenario-layer[data-scenario="calibration_bay"] .scenario-console,
.course-scenario-layer[data-scenario="api_console"] .scenario-console,
.course-scenario-layer[data-scenario="state_machine_cell"] .scenario-console {
  display: block;
}

.scenario-identification {
  position: absolute;
  left: 14px;
  bottom: 78px;
  z-index: 14;
  display: grid;
  max-width: min(430px, calc(100% - 28px));
  border: 1px solid rgba(125, 211, 252, 0.32);
  border-radius: 5px;
  padding: 7px 9px;
  color: #e0f2fe;
  background: rgba(8, 47, 73, 0.76);
  pointer-events: none;
}

.scenario-identification strong { font-size: 12px; }
.scenario-identification span { color: #bae6fd; font-size: 10px; }
.scenario-identification em { margin-top: 4px; color: #fbbf24; font-size: 10px; font-style: normal; font-weight: 800; }
.scenario-identification em.is-bound { color: #6ee7b7; }

.scenario-workbench {
  display: grid;
  grid-template-columns: minmax(260px, 520px) minmax(190px, 1fr);
  grid-template-areas:
    "head head"
    "map result";
  gap: 10px 14px;
  margin: 8px;
  padding: 10px;
  border-top: 1px solid #dbe5f1;
  background: #ffffff;
}

.scenario-workbench-head {
  grid-area: head;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.scenario-workbench-head > div {
  display: grid;
  gap: 2px;
}

.scenario-workbench-head strong {
  font-size: 14px;
}

.scenario-workbench-head span {
  color: #64748b;
  font-size: 11px;
}

.scenario-workbench-head button {
  min-height: 32px;
  border-radius: 5px;
}

.scenario-map {
  grid-area: map;
  min-height: 180px;
  overflow: hidden;
  border: 1px solid #233c5d;
  border-radius: 5px;
  background: #0f2038;
}

.scenario-map-grid {
  --scenario-columns: 6;
  --scenario-rows: 5;
  display: grid;
  grid-template-columns: repeat(var(--scenario-columns), minmax(0, 1fr));
  grid-template-rows: repeat(var(--scenario-rows), minmax(36px, 1fr));
  gap: 4px;
  width: 100%;
  aspect-ratio: var(--scenario-columns) / var(--scenario-rows);
  padding: 8px;
  background: #081426;
}

.scenario-cell {
  position: relative;
  min-width: 0;
  display: grid;
  place-items: center;
  border: 1px solid #314865;
  color: #c7d4e5;
  background: #172b45;
  font-size: 11px;
  font-weight: 900;
}

.scenario-cell.is-path {
  color: #064e3b;
  border-color: #46dca6;
  background: #72e4b5;
}

.scenario-cell.is-obstacle {
  color: #ffffff;
  border-color: #e44b4b;
  background: #a92028;
}

.scenario-cell.is-start {
  color: #ffffff;
  border-color: #56a3ff;
  background: #1555b6;
}

.scenario-cell.is-goal {
  color: #1f2937;
  border-color: #ffdf57;
  background: #ffd21c;
}

.scenario-cell .scenario-dog-marker {
  position: absolute;
  inset: 4px;
  display: grid;
  place-items: center;
  border: 2px solid #ffffff;
  color: #ffffff;
  background: rgba(9, 20, 38, 0.86);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.72);
  transform: rotate(var(--robot-heading, -90deg));
  font-size: 18px;
}

.scenario-result {
  grid-area: result;
  align-self: stretch;
  min-height: 80px;
  margin: 0;
  padding: 12px;
  border-left: 3px solid #1f6feb;
  color: #334155;
  background: #f4f8fd;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.7;
}

.scenario-result.is-success { border-color: #10a66e; color: #087a55; background: #ecfdf5; }
.scenario-result.is-warning { border-color: #f59e0b; color: #8a5200; background: #fff8e8; }
.scenario-result.is-error { border-color: #dc2626; color: #a11b1b; background: #fff7f7; }

.scenario-stage-list {
  display: grid;
  align-content: center;
  gap: 8px;
  min-height: 180px;
  padding: 14px;
  background: #f7fafc;
}

.scenario-stage-list span {
  display: grid;
  grid-template-columns: 28px 1fr;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 7px 9px;
  border: 1px solid #cad7e6;
  color: #334155;
  background: #ffffff;
  font-size: 12px;
  font-weight: 800;
}

.scenario-stage-list b {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  color: #ffffff;
  background: #64748b;
}

.scenario-stage-list span.is-active { border-color: #1f6feb; background: #eff6ff; }
.scenario-stage-list span.is-active b { background: #1f6feb; }
.scenario-stage-list span.is-done { border-color: #10a66e; background: #ecfdf5; }
.scenario-stage-list span.is-done b { background: #10a66e; }

.distance-track-visual {
  position: relative;
  min-height: 180px;
  background:
    linear-gradient(90deg, transparent 8%, #374151 8% 9%, transparent 9% 86%, #facc15 86% 88%, transparent 88%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 1px, transparent 1px 10%),
    #15283f;
}

.distance-track-visual::before,
.distance-track-visual::after {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 900;
}

.distance-track-visual::before { content: "起点"; left: 3%; color: #7dd3fc; }
.distance-track-visual::after { content: "1 m 目标线"; right: 4%; color: #fde047; }

@media (max-width: 1120px) {
  .scenario-workbench {
    grid-template-columns: 1fr;
    grid-template-areas: "head" "map" "result";
  }
}

.sim-scene.is-professional .course-scenario-layer {
  opacity: 0;
}

.learning-assessment-grid {
  display: grid;
  grid-template-columns: 1.05fr 1.35fr 0.8fr;
  gap: 8px;
  margin-top: 8px;
  align-items: start;
}

.learner-profile {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 10px;
}

.learner-profile label {
  display: grid;
  gap: 4px;
  color: #64748b;
  font-size: 11px;
  font-weight: 800;
}

.learner-profile input {
  min-width: 0;
  height: 34px;
  border: 1px solid #cbd8e6;
  border-radius: 5px;
  padding: 0 8px;
}

.learner-profile button {
  grid-column: 1 / -1;
  min-height: 34px;
  border-radius: 5px;
}

.learning-progress-track,
.table-progress {
  overflow: hidden;
  height: 7px;
  border-radius: 2px;
  background: #e2e8f0;
}

.learning-progress-track {
  margin: 0 10px 10px;
}

.learning-progress-track span,
.table-progress span {
  display: block;
  height: 100%;
  background: #16865f;
  transition: width 0.25s ease;
}

.course-status-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 5px;
  padding: 0 10px 10px;
}

.course-status-list button {
  display: grid;
  gap: 2px;
  min-width: 0;
  min-height: 42px;
  border: 1px solid #d5e0eb;
  border-radius: 4px;
  color: #475569;
  background: #f8fafc;
  cursor: pointer;
  font-size: 10px;
}

.course-status-list button.is-active { border-color: #1f6feb; color: #0b5bd3; background: #eaf3ff; }
.course-status-list button.is-passed { border-color: #e5b74f; color: #855400; background: #fff9e8; }
.course-status-list button.is-complete { border-color: #68c5a1; color: #087a55; background: #ecfdf5; }

.exam-lock {
  margin: 10px;
  border: 1px solid #d5e0eb;
  border-left: 3px solid #e5b74f;
  border-radius: 4px;
  padding: 10px;
  color: #6b4d0b;
  background: #fffbeb;
  font-size: 12px;
}

.course-exam {
  display: grid;
  gap: 8px;
  max-height: 540px;
  overflow: auto;
  padding: 10px;
}

.course-exam fieldset {
  display: grid;
  gap: 5px;
  min-width: 0;
  margin: 0;
  border: 1px solid #d7e1ec;
  border-radius: 5px;
  padding: 8px;
}

.course-exam legend {
  padding: 0 4px;
  color: #172b45;
  font-size: 12px;
  font-weight: 800;
}

.course-exam label {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  border-radius: 4px;
  padding: 5px;
  color: #475569;
  cursor: pointer;
  font-size: 11px;
}

.course-exam label:hover { background: #f1f5f9; }
.course-exam button { min-height: 36px; border-radius: 5px; }

.exam-result {
  min-height: 28px;
  margin: 0 10px 10px;
  color: #475569;
  font-size: 12px;
  font-weight: 700;
}

.exam-result.is-passed { color: #087a55; }
.exam-result.is-failed { color: #a11b1b; }

.certificate-preview {
  position: relative;
  min-height: 180px;
  margin: 12px;
  border: 6px double #8da2b8;
  padding: 24px 16px;
  text-align: center;
  background: #fbfdff;
}

.certificate-preview span { color: #5e7288; font-size: 10px; font-weight: 900; }
.certificate-preview strong { display: block; margin: 14px 0; color: #17375e; font-size: 18px; }
.certificate-preview p { margin: 0; color: #64748b; font-size: 12px; line-height: 1.6; }
.certificate-preview.is-issued { border-color: #b99642; background: #fffdf7; }

.certificate-program-list {
  display: grid;
  gap: 6px;
  margin: 0 12px 12px;
}

.certificate-program-row {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid #d8e2ec;
  border-radius: 5px;
  padding: 7px 10px;
  background: #f8fafc;
}

.certificate-program-row > div { min-width: 0; }
.certificate-program-row strong { display: block; color: #17375e; font-size: 12px; }
.certificate-program-row span { display: block; margin-top: 2px; color: #64748b; font-size: 10px; }
.certificate-program-row b { color: #64748b; font-size: 12px; }
.certificate-program-row a { flex: 0 0 auto; color: #1759a8; font-size: 11px; font-weight: 800; }
.certificate-program-row.is-issued { border-color: #d7bd7c; background: #fffdf7; }
.certificate-program-empty { margin: 0; color: #64748b; font-size: 11px; }

.certificate-link {
  display: block;
  min-height: 36px;
  margin: 0 12px 12px;
  border-radius: 5px;
  text-align: center;
  line-height: 36px;
}

.learning-monitor-panel { margin-top: 16px; }

.learning-overview-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid #dce5ef;
}

.learning-overview-summary > div {
  display: grid;
  gap: 4px;
  padding: 14px;
  border-right: 1px solid #dce5ef;
}

.learning-overview-summary span { color: #64748b; font-size: 12px; }
.learning-overview-summary strong { color: #17375e; font-size: 24px; }
.learning-table-wrap { overflow-x: auto; }
.learning-monitor-table { width: 100%; border-collapse: collapse; }
.learning-monitor-table th,
.learning-monitor-table td { border-bottom: 1px solid #e2e8f0; padding: 10px 12px; text-align: left; font-size: 12px; }
.learning-monitor-table th { color: #475569; background: #f8fafc; }
.learning-monitor-table td strong,
.learning-monitor-table td small { display: block; }
.learning-monitor-table td small { margin-top: 3px; color: #64748b; }
.learning-monitor-table td:nth-child(5) { min-width: 160px; }
.learning-monitor-table .table-progress { display: inline-block; width: 100px; margin-right: 8px; vertical-align: middle; }
.empty-table-state { padding: 28px !important; color: #64748b; text-align: center !important; }

html[data-detached-view] .learning-assessment-grid { display: none; }
html[data-detached-view="course"] #courseWindow > .course-cue-card,
html[data-detached-view="course"] #courseWindow > .course-practice-actions,
html[data-detached-view="course"] #courseWindow > .course-achievement-strip { display: none; }

html[data-detached-view="course"] #courseWindow > .video-interaction-panel {
  margin-bottom: 0;
}

/* Printable completion certificate */
.certificate-page {
  min-width: 0;
  background: #e8eef5;
}

.certificate-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  border-bottom: 1px solid #cbd5e1;
  background: #ffffff;
}

.certificate-toolbar a { color: #1759a8; font-weight: 800; }
.certificate-toolbar button { min-height: 38px; border-radius: 5px; }
.certificate-stage { display: grid; place-items: center; min-height: calc(100vh - 64px); padding: 28px; }

.certificate-sheet {
  position: relative;
  width: min(1120px, 94vw);
  aspect-ratio: 1.414 / 1;
  overflow: hidden;
  border: 12px solid #17375e;
  outline: 2px solid #b99642;
  outline-offset: -22px;
  padding: 8% 10%;
  color: #172b45;
  background:
    linear-gradient(90deg, rgba(23, 55, 94, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(23, 55, 94, 0.04) 1px, transparent 1px),
    #fffefb;
  background-size: 34px 34px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.2);
  text-align: center;
}

.certificate-org { margin: 0; color: #b0832f; font-size: 14px; font-weight: 900; letter-spacing: 6px; }
.certificate-sheet h1 { margin: 4% 0 0; color: #17375e; font-family: serif; font-size: 54px; letter-spacing: 12px; }
.certificate-subtitle { margin: 8px 0 5%; color: #6b7f94; font-size: 14px; letter-spacing: 4px; }
.certificate-copy { margin: 12px auto; max-width: 760px; color: #475569; font-size: 18px; line-height: 1.9; }
.certificate-student { display: inline-block; min-width: 360px; border-bottom: 2px solid #b99642; padding: 8px 36px; color: #0f2f55; font-family: serif; font-size: 38px; }
.certificate-course-copy { margin-top: 28px; }
.certificate-meta { display: flex; justify-content: center; gap: 32px; margin-top: 6%; color: #64748b; font-size: 13px; }
.certificate-meta b { color: #17375e; }
.certificate-seal { position: absolute; right: 8%; bottom: 8%; display: grid; place-items: center; width: 92px; height: 92px; border: 4px double #b42318; border-radius: 50%; color: #b42318; transform: rotate(-9deg); font-size: 14px; font-weight: 900; }
.certificate-verification { position: absolute; left: 10%; bottom: 7%; color: #7c8ea1; font-size: 11px; }
.certificate-error { color: #a11b1b; font-weight: 800; }

@media (max-width: 1400px) {
  .learning-assessment-grid { grid-template-columns: 1fr 1fr; }
  .certificate-panel { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .learning-assessment-grid { grid-template-columns: 1fr; }
  .certificate-panel { grid-column: auto; }
  .course-status-list { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .video-interaction-actions { grid-template-columns: 1fr 1fr; }
  .video-interaction-actions label { grid-column: 1 / -1; }
  .course-achievement-stages { grid-template-columns: 1fr; }
  .certificate-meta { flex-direction: column; gap: 6px; }
}

@media print {
  @page { size: A4 landscape; margin: 0; }
  .certificate-toolbar,
  .certificate-error { display: none !important; }
  .certificate-page,
  .certificate-stage { min-height: 0; padding: 0; background: #ffffff; }
  .certificate-sheet { width: 297mm; height: 210mm; border-width: 10px; box-shadow: none; print-color-adjust: exact; -webkit-print-color-adjust: exact; }
}

/* Authenticated access and protected course media */
.session-controls {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-left: 10px;
  border-left: 1px solid var(--line);
}

.session-user {
  max-width: 120px;
  overflow: hidden;
  color: #334155;
  font-size: 12px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-logout {
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid #cbd5e1;
  border-radius: 5px;
  color: #334155;
  background: #ffffff;
  cursor: pointer;
}

.video-watermark {
  position: absolute;
  top: 12%;
  left: 5%;
  z-index: 5;
  max-width: min(72%, 520px);
  padding: 5px 8px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 4px;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(8, 19, 36, 0.34);
  font-family: Consolas, "Microsoft YaHei", monospace;
  font-size: 11px;
  line-height: 1.45;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  transition: top 600ms ease, right 600ms ease, bottom 600ms ease, left 600ms ease;
  user-select: none;
}

.video-watermark[data-position="top-right"] { right: 5%; left: auto; }
.video-watermark[data-position="bottom-left"] { top: auto; bottom: 12%; }
.video-watermark[data-position="bottom-right"] { top: auto; right: 5%; bottom: 12%; left: auto; }
.video-watermark b,
.video-watermark time { display: block; font-weight: 700; }

.auth-page {
  min-width: 320px;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px;
  background: #e9eef5;
}

.auth-shell {
  width: min(1040px, 100%);
  min-height: 590px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.75fr);
  overflow: hidden;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.14);
}

.auth-brand {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 36px;
  padding: 44px;
  color: #eaf2fb;
  background: #17375e;
}

.auth-brand .brand-mark { background: #ffffff; color: #17375e; }
.auth-brand .console-brand strong { font-size: 20px; }
.auth-brand .eyebrow { color: #79b8ff; }
.auth-brand h1 { margin: 12px 0; font-size: 34px; letter-spacing: 0; }
.auth-brand p { max-width: 520px; margin: 0; color: #c6d7ea; line-height: 1.8; }

.auth-assurance {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  list-style: none;
}

.auth-assurance li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.auth-assurance li:last-child { border-bottom: 0; }
.auth-assurance span { color: #c6d7ea; font-size: 13px; }

.auth-panel {
  align-self: center;
  padding: 44px;
}

.auth-panel-head span { color: var(--blue); font-size: 12px; font-weight: 900; }
.auth-panel-head h2 { margin: 8px 0 28px; font-size: 24px; }
.auth-form { display: grid; gap: 18px; }
.auth-form > label:not(.auth-password-toggle) { display: grid; gap: 8px; color: #334155; font-weight: 800; }
.auth-form input[type="text"],
.auth-form input[type="password"],
.auth-form input:not([type]) {
  width: 100%;
  min-height: 46px;
  border: 1px solid #b8c6d8;
  border-radius: 5px;
  padding: 0 12px;
  outline: none;
}

.auth-form input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.14); }
.auth-password-toggle { display: flex; align-items: center; gap: 8px; color: #475569; font-size: 13px; }
.auth-submit { width: 100%; min-height: 46px; border-radius: 5px; }
.auth-status { min-height: 38px; padding: 10px 12px; border: 1px solid #d8e1ec; border-radius: 5px; color: #475569; background: #f8fafc; font-size: 13px; }
.auth-status.is-working { color: #1759a8; border-color: #a9c9ef; background: #eff7ff; }
.auth-status.is-success { color: #087443; border-color: #9dd9bd; background: #effbf5; }
.auth-status.is-error { color: #a11b1b; border-color: #efb0b0; background: #fff4f4; }

@media (max-width: 800px) {
  .auth-page { padding: 14px; }
  .auth-shell { grid-template-columns: 1fr; }
  .auth-brand { padding: 28px; }
  .auth-assurance { display: none; }
  .auth-panel { padding: 28px; }
  .session-user { display: none; }
}