:root {
  --bg: #ffffff;
  --paper: #ffffff;
  --ink: #161616;
  --muted: #5a5a5a;
  --line: #ddd;
  --accent: #1c7c54;
  --chip: #f0f0f0;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Space Grotesk", sans-serif;
}
main {
  max-width: 1420px;
  margin: 0 auto;
  padding: 0.9rem 0.85rem 1rem;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1rem;
}
h1 {
  margin: 0;
  font-size: 1.7rem;
  letter-spacing: 0.02em;
}
.sub {
  color: var(--muted);
  margin-top: 0.2rem;
  font-size: 0.92rem;
}
.kpi {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 0.45rem 0.7rem;
  border-radius: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
}
.controls {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
}
.control-row {
  display: flex;
  gap: 0.45rem;
  align-items: center;
  flex-wrap: wrap;
}
.material-status-note {
  border: 1px solid #e6dfd2;
  background: #faf7f0;
  border-radius: 8px;
  padding: 0.5rem 0.65rem;
  color: var(--muted);
  font-size: 0.73rem;
  line-height: 1.45;
}
.label {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  min-width: 72px;
}
button, .chip {
  border: 1px solid var(--line);
  background: var(--chip);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.32rem 0.7rem;
  font-size: 0.82rem;
  cursor: pointer;
  font-family: inherit;
}
button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.material-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  user-select: none;
}
.material-chip input { display: none; }
.material-chip .dot {
  width: 10px;
  height: 10px;
  border-radius: 99px;
}
.material-chip.inactive {
  opacity: 0.35;
  text-decoration: line-through;
}
.material-chip.unavailable {
  cursor: default;
  background: rgba(240,240,240,0.55);
  border-color: #e6e0d2;
  color: rgba(22,22,22,0.34);
}
.material-chip.unavailable .dot {
  opacity: 1;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.08);
}
.material-chip.unavailable .chip-label {
  color: rgba(22,22,22,0.34);
}
.lab-grid {
  display: grid;
  grid-template-columns: minmax(420px, 1.08fr) minmax(0, 0.92fr) minmax(0, 0.92fr);
  gap: 0.75rem;
  align-items: start;
}
.panel {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  padding: 0.65rem;
  min-width: 0;
}
.panel h2 {
  margin: 0 0 0.55rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.lab-card {
  min-height: 100%;
}
.formula-section {
  margin-top: 0.75rem;
}
.formula-list,
.formula-citations {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.45;
}
.formula-list span,
.formula-citations span {
  display: block;
}
.chart-wrap {
  border: 1px solid #d6d0c2;
  border-radius: 8px;
  background: #fff;
  padding: 0.35rem;
}
.compact-chart canvas {
  display: block;
  width: 100%;
}
.no-data {
  padding: 1rem;
  color: var(--muted);
  text-align: center;
  font-size: 0.88rem;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
}
th, td {
  border: 1px solid #d6d0c2;
  padding: 0.36rem 0.45rem;
  text-align: left;
}
th {
  background: #f5f5f5;
  font-weight: 600;
}
.status-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.22rem;
}
.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.25rem;
  border: 1px solid #d6d0c2;
  border-radius: 4px;
  padding: 0.1rem 0.28rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.66rem;
  line-height: 1;
  white-space: nowrap;
}
.status-ok { background: #e8f4ed; color: #17613f; border-color: #b9dac7; }
.status-stale { background: #fff4d8; color: #795500; border-color: #e1c26f; }
.status-failed { background: #fdeceb; color: #9b2720; border-color: #e5b0ac; }
.status-not_run { background: #f0f0f0; color: #5a5a5a; border-color: #d8d8d8; }
a {
  color: #0b5670;
  text-decoration: none;
}
a:hover { text-decoration: underline; }
small.mono {
  font-family: "IBM Plex Mono", monospace;
  color: var(--muted);
  font-size: 0.72rem;
}
.plot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.45rem;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.plot-header h2 { margin: 0; }
.steady-chart-stack {
  display: grid;
  gap: 0.65rem;
}
.steady-subplot-title {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.45rem;
  gap: 0.4rem;
}
.panel-header h2 {
  margin: 0;
}
.chart-note {
  margin-top: 0.32rem;
  font-size: 0.68rem;
  color: var(--muted);
  line-height: 1.4;
}
.deck-section {
  margin-top: 0.75rem;
}
.decks-wrap {
  max-height: 260px;
  overflow: auto;
  margin-top: 0.45rem;
}
.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.45rem;
  margin-top: 0.55rem;
}
.metric-card {
  border: 1px solid #d6d0c2;
  border-radius: 8px;
  background: #fff;
  padding: 0.45rem 0.55rem;
}
.metric-card .label {
  display: block;
  min-width: 0;
  margin-bottom: 0.18rem;
}
.metric-card .value {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
}
.dpt-circuit-block {
  margin-top: 0.7rem;
}
.dpt-circuit-shell {
  margin-top: 0.55rem;
}
.dpt-circuit-svg {
  display: block;
  width: 100%;
  max-width: 560px;
  margin: 0 auto 0.7rem;
  border: 1px solid #d6d0c2;
  border-radius: 8px;
  background: #fff;
}
.dpt-circuit-svg .wire,
.dpt-circuit-svg .ground,
.dpt-circuit-svg .resistor,
.dpt-circuit-svg .inductor,
.dpt-circuit-svg .diode-bar {
  fill: none;
  stroke: #4c4a44;
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.dpt-circuit-svg .source,
.dpt-circuit-svg .switch-body {
  fill: #f6f2e8;
  stroke: #4c4a44;
  stroke-width: 2.2;
}
.dpt-circuit-svg .diode-triangle {
  fill: #d9b66f;
  stroke: #4c4a44;
  stroke-width: 2.2;
  stroke-linejoin: round;
}
.dpt-circuit-svg .schematic-text {
  fill: #4c4a44;
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
}
.dpt-circuit-values {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-top: 0;
}
@media (max-width: 1180px) {
  .lab-grid {
    grid-template-columns: 1fr 1fr;
  }
  .analysis-card {
    grid-column: 1 / -1;
    grid-row: 1;
  }
}
@media (max-width: 980px) {
  .lab-grid { grid-template-columns: 1fr; }
  .dpt-circuit-svg { max-width: 100%; }
}

.page-footer {
  margin-top: 0.9rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  font-size: 0.69rem;
  color: var(--muted);
  line-height: 1.5;
}
.page-footer strong {
  color: var(--ink);
  font-weight: 600;
}