:root {
  --bg: #0f1115;
  --panel: #171a21;
  --ink: #e6e8ec;
  --dim: #8a8f98;
  --accent: #ff8a3d;
  --accent2: #6fd1ff;
  --warn: #ffd166;
  --grid: #242832;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 14px/1.4 system-ui, sans-serif; }
header { padding: 14px 20px; border-bottom: 1px solid var(--grid); }
header h1 { margin: 0; font-size: 18px; font-weight: 600; }
header .sub { color: var(--dim); font-weight: 400; margin-left: 8px; }

main {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 16px;
  padding: 16px;
  max-width: 1200px;
  margin: 0 auto;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 10px;
  padding: 14px 16px;
}
.panel h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dim);
  margin: 14px 0 8px;
}
.panel h2:first-child { margin-top: 0; }

.controls label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--ink);
}
.controls label output {
  float: right;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.controls input[type=range] {
  width: 100%;
  accent-color: var(--accent);
}
.controls select {
  width: 100%;
  background: #0f1218;
  color: var(--ink);
  border: 1px solid var(--grid);
  border-radius: 6px;
  padding: 6px;
}

.kpi { list-style: none; padding: 0; margin: 0; }
.kpi li {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  border-bottom: 1px dashed var(--grid);
  font-variant-numeric: tabular-nums;
}
.kpi b { color: var(--accent2); font-weight: 600; }
.warn { color: var(--warn); margin-top: 8px; min-height: 1em; font-size: 12px; }

canvas {
  background: #0b0d12;
  border: 1px solid var(--grid);
  border-radius: 8px;
  display: block;
  max-width: 100%;
}
#grainCanvas { margin: 0 auto; }

.thermo { list-style: none; padding: 0; margin: 0 0 4px; }
.thermo li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 4px 0;
  border-bottom: 1px dashed var(--grid);
  font-size: 11px;
  color: var(--dim);
}
.thermo .label {
  flex: 1 1 auto;
  min-width: 0;
}
.thermo .val {
  flex: 0 0 auto;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.thermo .val b {
  color: #ffdc8c;
  font-weight: 600;
  font-size: 13px;
  margin-right: 3px;
}
.cite { font-size: 10px; color: var(--dim); margin: 2px 0 12px; font-style: italic; }
.cite:empty { display: none; }

.req { list-style: none; padding: 0; margin: 0 0 6px; }
.req li {
  display: flex;
  justify-content: space-between;
  padding: 4px 8px;
  margin-bottom: 3px;
  border-radius: 5px;
  background: #0b0d12;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.req li.pass { border-left: 3px solid #7bd88f; }
.req li.fail { border-left: 3px solid #ff5c6a; }
.req li b { color: var(--ink); font-weight: 500; }
.req li .actual { color: var(--accent2); }
.req li.fail .actual { color: #ff8a94; }

.status { margin: 6px 0 6px; font-weight: 600; font-size: 14px; }
.status.pass { color: #7bd88f; }
.status.fail { color: #ff8a94; }

.suggest {
  margin: 0 0 6px;
  padding: 6px 10px;
  background: #1a2332;
  border-left: 3px solid var(--accent2);
  border-radius: 4px;
  color: var(--accent2);
  font-size: 12px;
  min-height: 0;
}
.suggest:empty { display: none; }

.restrict {
  margin: 0 0 12px;
  font-size: 11px;
  color: var(--warn);
}
.restrict:empty { display: none; }

button.action {
  width: 100%;
  padding: 8px 10px;
  margin-top: 8px;
  background: var(--accent2);
  color: #0f1115;
  border: none;
  border-radius: 6px;
  font: 600 12px system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
}
button.action:hover { filter: brightness(1.1); }
button.action:active { transform: translateY(1px); }

.scrub {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--dim);
  margin-left: 10px;
}
.scrub input[type=range] { width: 140px; accent-color: var(--accent2); }
.scrub output { color: var(--accent2); }

.kpirow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin: 12px 0 6px;
}
.kpirow > div {
  background: #0b0d12;
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 12px;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
}
.kpirow > div b {
  display: block;
  color: var(--accent2);
  font-size: 16px;
  font-weight: 600;
  margin-top: 2px;
}
.kpirow > div span { font-size: 10px; text-transform: uppercase; letter-spacing: 0.05em; }

details { margin-top: 12px; color: var(--dim); }
summary { cursor: pointer; }
pre { background: #0b0d12; padding: 10px; border-radius: 6px; overflow-x: auto; font-size: 12px; color: var(--ink); }