:root {
  --bg: #0b1119;
  --panel: #121b28;
  --panel-alt: #172334;
  --border: #26364d;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --amber: #f59e0b;
  --cyan: #38bdf8;
  --red: #ef4444;
  --green: #10b981;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 20% 0%, #17253a 0%, var(--bg) 60%);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 17, 25, 0.88);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
}

.signal-lamp {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 12px var(--amber);
}

.brand strong {
  display: block;
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.08em;
}

.brand span {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}

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

.score-pill {
  padding: 6px 12px;
  border-radius: 6px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.score-pill b {
  color: var(--amber);
}

.polli-badge img {
  height: 28px;
  display: block;
}

.connect-btn,
.ghost-btn {
  padding: 8px 14px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
}

.connect-btn {
  background: var(--amber);
  color: #0b1119;
  border: 1px solid #fbbf24;
}

.connect-btn.connected {
  background: #064e3b;
  color: #a7f3d0;
  border-color: var(--green);
}

.ghost-btn {
  background: var(--panel-alt);
  color: var(--text);
  border: 1px solid var(--border);
}

.ghost-btn:hover,
.connect-btn:hover {
  transform: translateY(-1px);
}

.layout {
  max-width: 1360px;
  margin: 0 auto;
  padding: 22px 28px 40px;
}

.intro-strip {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 24px;
  align-items: end;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.intro-strip h1 {
  margin: 0;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.18;
  font-weight: 800;
}

.intro-strip h1 em {
  font-style: normal;
  color: var(--cyan);
}

.intro-copy {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.intro-copy code {
  color: #fde68a;
  font-family: var(--mono);
  font-size: 12.5px;
}

.round-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 18px;
}

.round-tab {
  flex: 1 0 auto;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  text-align: left;
  cursor: pointer;
  transition: all 0.15s ease;
}

.round-tab strong {
  display: block;
  color: var(--text);
  font-size: 12.5px;
  margin-top: 2px;
}

.round-tab.active {
  background: #1c2c44;
  border-color: var(--amber);
  color: #fde68a;
}

.round-tab.done {
  border-bottom: 3px solid var(--green);
}

.workspace {
  display: grid;
  grid-template-columns: 1.12fr 0.98fr;
  gap: 20px;
  align-items: start;
}

.stage-card,
.telemetry-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.32);
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(245, 158, 11, 0.16);
  border: 1px solid rgba(245, 158, 11, 0.45);
  color: #fcd34d;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
}

.badge-cyan {
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.45);
  color: #7dd3fc;
}

.card-head h2 {
  margin: 6px 0 2px;
  font-size: 20px;
}

.card-head p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.order-toggle {
  display: flex;
  border-radius: 7px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg);
}

.order-btn {
  padding: 7px 11px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11.5px;
  cursor: pointer;
}

.order-btn.active {
  background: var(--amber);
  color: #0b1119;
  font-weight: 700;
}

.rail-viewport {
  background: #090f16;
  border: 1px solid #1f2e42;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 14px;
}

#railSvg {
  width: 100%;
  height: auto;
  display: block;
}

#trolleyCar {
  transition: transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

.prompt-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 14px;
}

.prompt-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--amber);
}

.mini-link {
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 8px;
  cursor: pointer;
}

.state-text {
  margin: 0;
  font-size: 13.5px;
  color: #cbd5e1;
  line-height: 1.55;
}

.custom-editor {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 14px;
}

.custom-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.custom-row label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}

.custom-row input {
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
}

.controls-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.action-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
}

.action-btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.action-btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

.btn-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  opacity: 0.85;
}

.action-btn strong {
  font-family: var(--mono);
  font-size: 13.5px;
}

.action-btn small {
  font-size: 11.5px;
  color: var(--muted);
}

.pull-btn {
  border-color: rgba(56, 189, 248, 0.55);
  background: linear-gradient(180deg, rgba(14, 116, 144, 0.35), rgba(15, 23, 42, 0.9));
}

.pull-btn.selected {
  box-shadow: 0 0 0 2px var(--cyan);
}

.stay-btn {
  border-color: rgba(239, 68, 68, 0.55);
  background: linear-gradient(180deg, rgba(153, 27, 27, 0.35), rgba(15, 23, 42, 0.9));
}

.stay-btn.selected {
  box-shadow: 0 0 0 2px var(--red);
}

.live-btn {
  border-color: rgba(245, 158, 11, 0.65);
  background: linear-gradient(180deg, rgba(180, 83, 9, 0.35), rgba(15, 23, 42, 0.9));
}

.status-bar {
  margin: 12px 0 0;
  padding: 9px 12px;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 12.5px;
  color: var(--muted);
}

.status-bar.error {
  border-color: var(--red);
  color: #fca5a5;
}

.verdict-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.verdict-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}

.verdict-box span {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--muted);
}

.verdict-box strong {
  display: block;
  font-family: var(--mono);
  font-size: 16px;
  margin: 3px 0 2px;
  color: var(--amber);
}

.verdict-box small {
  font-size: 11.5px;
  color: var(--muted);
}

.primitive-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 12px;
}

.prim-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.prim-head code {
  color: #fde68a;
  font-family: var(--mono);
}

.prim-head b {
  font-family: var(--mono);
  color: var(--text);
}

.split-bar {
  display: flex;
  height: 28px;
  border-radius: 6px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 700;
  margin-bottom: 8px;
}

.bar-pull {
  background: linear-gradient(90deg, #0284c7, #38bdf8);
  color: #082f49;
  display: flex;
  align-items: center;
  padding-left: 10px;
  white-space: nowrap;
  overflow: hidden;
}

.bar-stay {
  background: linear-gradient(90deg, #dc2626, #f87171);
  color: #450a0a;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 10px;
  white-space: nowrap;
  overflow: hidden;
}

.order-compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.order-chip {
  padding: 6px 10px;
  border-radius: 6px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
}

.order-chip b {
  color: var(--text);
}

.noul-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.noul-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  margin-bottom: 5px;
}

.noul-label b {
  font-family: var(--mono);
  color: var(--cyan);
}

.meter {
  height: 10px;
  border-radius: 5px;
  background: #1e293b;
  overflow: hidden;
}

.meter span {
  display: block;
  height: 100%;
  background: var(--cyan);
}

.meter-amber span {
  background: var(--amber);
}

.score-rungs {
  display: grid;
  gap: 5px;
}

.rung-row {
  display: grid;
  grid-template-columns: 175px 1fr 46px;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: var(--muted);
}

.rung-bar {
  height: 8px;
  background: #1e293b;
  border-radius: 4px;
  overflow: hidden;
}

.rung-bar span {
  display: block;
  height: 100%;
  background: var(--green);
}

.rung-pct {
  font-family: var(--mono);
  text-align: right;
  color: var(--text);
}

.insight-callout {
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.35);
  font-size: 12.5px;
  color: #fde68a;
  margin-bottom: 12px;
}

.json-drawer summary {
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--cyan);
  padding: 6px 0;
}

.json-drawer pre {
  margin: 8px 0 0;
  padding: 12px;
  border-radius: 8px;
  background: #070b10;
  border: 1px solid var(--border);
  color: #a7f3d0;
  font-family: var(--mono);
  font-size: 11.5px;
  max-height: 250px;
  overflow: auto;
}

.foot {
  max-width: 1360px;
  margin: 0 auto;
  padding: 16px 28px 32px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  flex-wrap: wrap;
  gap: 12px;
}

.foot-links {
  display: flex;
  gap: 16px;
}

.foot-links a {
  color: var(--cyan);
  text-decoration: none;
}

@media (max-width: 980px) {
  .intro-strip,
  .workspace,
  .controls-row,
  .verdict-grid,
  .custom-row {
    grid-template-columns: 1fr;
  }
}