/* Science Explain — Virtual Lab
   Minimal line-art style: thin borders, no shadows, monospace readouts. */

.se-lab {
  --se-line: #e3e6ea;
  --se-line-soft: #f0f2f5;
  --se-ink: #1f2328;
  --se-muted: #6b7280;
  --se-accent: #2563eb;
  --se-accent-soft: #dbeafe;
  --se-warn: #b45309;
  --se-good: #0f766e;
  border: 1px solid var(--se-line);
  border-radius: 10px;
  background: #fff;
  margin: 26px 0;
  overflow: hidden;
  font-family: inherit;
  color: var(--se-ink);
}

.se-lab-head {
  padding: 14px 18px;
  border-bottom: 1px solid var(--se-line-soft);
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.se-lab-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
}

.se-lab-sub {
  font-size: 13px;
  color: var(--se-muted);
}

.se-lab-stage {
  padding: 14px 18px 4px;
}

.se-lab-canvas {
  display: block;
  width: 100%;
  background: #fff;
  border: 1px solid var(--se-line-soft);
  border-radius: 6px;
  touch-action: none;
}

.se-lab-controls {
  padding: 14px 18px 4px;
  display: grid;
  gap: 14px 18px;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

.se-lab-ctrl-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}

.se-lab-ctrl-label {
  font-size: 13px;
  color: var(--se-ink);
}

.se-lab-ctrl-value {
  font-size: 12px;
  color: var(--se-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.se-lab-range {
  width: 100%;
  margin: 0;
  accent-color: var(--se-accent);
}

.se-lab-select {
  width: 100%;
  padding: 5px 8px;
  font-size: 13px;
  font-family: inherit;
  border: 1px solid var(--se-line);
  border-radius: 6px;
  background: #fff;
  color: var(--se-ink);
}

.se-lab-actions {
  padding: 12px 18px 0;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.se-lab-btn {
  font: inherit;
  font-size: 13px;
  padding: 6px 14px;
  border: 1px solid var(--se-line);
  border-radius: 6px;
  background: #fff;
  color: var(--se-ink);
  cursor: pointer;
  line-height: 1.5;
}

.se-lab-btn:hover {
  border-color: var(--se-accent);
  color: var(--se-accent);
}

.se-lab-btn:focus-visible {
  outline: 2px solid var(--se-accent);
  outline-offset: 2px;
}

.se-lab-btn[data-primary="1"] {
  background: var(--se-accent);
  border-color: var(--se-accent);
  color: #fff;
}

.se-lab-btn[data-primary="1"]:hover {
  opacity: 0.9;
  color: #fff;
}

.se-lab-readout {
  margin: 12px 18px 0;
  padding: 10px 12px;
  border: 1px solid var(--se-line-soft);
  border-radius: 6px;
  background: #fcfcfd;
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.se-lab-readout-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  font-size: 12px;
}

.se-lab-readout-key {
  color: var(--se-muted);
}

.se-lab-readout-val {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: var(--se-ink);
}

.se-lab-note {
  margin: 12px 18px 18px;
  padding: 10px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--se-muted);
  border-left: 2px solid var(--se-line);
}

.se-lab-note strong {
  color: var(--se-ink);
  font-weight: 600;
}

.se-lab-tabs {
  padding: 12px 18px 0;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.se-lab-tab {
  font: inherit;
  font-size: 12.5px;
  padding: 5px 12px;
  border: 1px solid var(--se-line);
  border-radius: 999px;
  background: #fff;
  color: var(--se-muted);
  cursor: pointer;
}

.se-lab-tab[aria-selected="true"] {
  border-color: var(--se-accent);
  background: var(--se-accent-soft);
  color: var(--se-accent);
}

@media (max-width: 600px) {
  .se-lab-stage,
  .se-lab-controls,
  .se-lab-actions,
  .se-lab-head {
    padding-left: 12px;
    padding-right: 12px;
  }

  .se-lab-readout,
  .se-lab-note,
  .se-lab-tabs {
    margin-left: 12px;
    margin-right: 12px;
  }

  .se-lab-readout {
    grid-template-columns: 1fr;
  }
}

.se-lab-cards {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 24px 0;
}

.se-lab-card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 16px;
  border: 1px solid #e3e6ea;
  border-radius: 10px;
  background: #fff;
  text-decoration: none;
  color: inherit;
}

.se-lab-card:hover,
.se-lab-card:focus-visible {
  border-color: #2563eb;
  text-decoration: none;
}

.se-lab-card-area {
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #6b7280;
}

.se-lab-card-title {
  font-size: 15px;
  font-weight: 600;
  color: #1f2328;
}

.se-lab-card-sub {
  font-size: 13px;
  line-height: 1.5;
  color: #6b7280;
}