/* BJT explorer — artifact-specific layout. */

.bjt {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 2.5rem;
  align-items: stretch;
  margin: 0 0 2.5rem;
}

.bjt-main {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 1.5rem;
  min-width: 0;
}

.bjt-schematic,
.bjt-curves {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.bjt-schematic canvas,
.bjt-curves canvas {
  width: 100%;
  display: block;
}
.bjt-schematic canvas {
  height: 540px;
  cursor: crosshair;
}
.bjt-curves canvas {
  aspect-ratio: 5 / 4;
  height: auto;
  max-height: 540px;
}

.ctrl-label {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.06em;
}
.ctrl-label sub {
  font-size: 0.85em;
}

/* stats panel */

.bjt-stats {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-self: stretch;
}

.stats-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}
.stat-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.04em;
}
.stat-label sub {
  font-size: 0.85em;
}
.stat-value {
  font-family: var(--serif);
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-feature-settings: "tnum" 1;
}

/* region badge */
.region {
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 0.55rem 0.75rem;
  margin-top: 0.5rem;
  transition: border-color 0.2s, background 0.2s;
}
.region.active {
  border-color: var(--accent-warm);
  background: color-mix(in srgb, var(--accent-warm) 8%, transparent);
}
.region.saturation {
  border-color: var(--ink-soft);
}
.region-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.04em;
  display: block;
}
.region-value {
  font-family: var(--serif);
  font-size: 1.45rem;
  letter-spacing: -0.01em;
  text-transform: capitalize;
  color: var(--ink);
}
.region.active .region-value {
  color: var(--accent-warm);
}

@media (max-width: 960px) {
  .bjt {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .bjt-main {
    grid-template-columns: 300px minmax(0, 1fr);
  }
  .stats-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem 2rem;
  }
  .region {
    flex-basis: 100%;
    margin-top: 0;
  }
}

@media (max-width: 640px) {
  .bjt-main {
    grid-template-columns: 1fr;
  }
  .bjt-schematic canvas {
    max-width: 320px;
    margin: 0 auto;
  }
}

/* controls */

.bjt-controls {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}
.ctrl-row.sliders {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.5rem;
}

.row-control {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.row-control .label-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.04em;
}
.row-control .label-row sub {
  font-size: 0.85em;
}
.row-control .value {
  color: var(--ink-soft);
  font-feature-settings: "tnum" 1;
  text-transform: none;
}

/* shared range slider */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 14px;
  background: transparent;
  cursor: pointer;
  margin: 0;
}
input[type="range"]:focus-visible {
  outline: 2px solid var(--accent-warm);
  outline-offset: 4px;
  border-radius: 2px;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 1px;
  background: var(--rule);
}
input[type="range"]::-moz-range-track {
  height: 1px;
  background: var(--rule);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-warm);
  margin-top: -6px;
  border: none;
  transition: transform 0.15s ease;
}
input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-warm);
  border: none;
}
input[type="range"]:hover::-webkit-slider-thumb {
  transform: scale(1.25);
}

/* notes */

.notes em {
  font-family: var(--mono);
  font-style: normal;
  font-size: 0.85em;
  padding: 0.05em 0.4em;
  border: 1px solid var(--rule);
  border-radius: 4px;
  color: var(--ink);
  margin: 0 0.1em;
}
.notes em sub,
.notes em sup {
  font-size: 0.85em;
}
.notes ul {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}
.notes ul li {
  padding: 0.4rem 0 0.4rem 1rem;
  border-left: 2px solid var(--rule);
  margin-bottom: 0.6rem;
  color: var(--ink-soft);
}