.signals {
  display: flex;
  flex-direction: column;
  gap: var(--gap-xl);
}

.signals__section {
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
}

.signals__section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--bp-text-accent);
  padding-bottom: var(--gap-sm);
  border-bottom: 1px solid var(--bp-border);
}

.signals__canvas-wrap {
  background: var(--bp-bg-surface);
  border: 1px solid var(--bp-border);
  border-radius: var(--radius-md);
  padding: var(--gap-md);
  display: flex;
  justify-content: center;
}

.signals__canvas-wrap canvas {
  display: block;
}

.signals__pwm-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--gap-sm);
}

.signals__pwm-cell {
  background: var(--bp-bg-surface);
  border: 1px solid var(--bp-border);
  border-radius: var(--radius-md);
  padding: var(--gap-sm);
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.signals__pwm-cell--active {
  border-color: var(--bp-purple);
  box-shadow: 0 0 12px rgba(176, 137, 255, 0.24);
}

.signals__pwm-cell canvas {
  display: block;
  margin: 0 auto;
}

.signals__pwm-label {
  font-size: 11px;
  color: var(--bp-text-secondary);
  margin-top: 6px;
}

.signals__pwm-label strong {
  color: var(--bp-text-accent);
  font-weight: 600;
}

.signals__pwm-temp {
  font-size: 10px;
  color: var(--bp-text-secondary);
  opacity: 0.7;
}

.signals__annotation {
  font-size: 11px;
  color: var(--bp-text-secondary);
  line-height: 1.7;
  padding: var(--gap-md);
  background: var(--bp-bg-surface);
  border: 1px solid var(--bp-border);
  border-radius: var(--radius-md);
}

.signals__formula {
  font-family: var(--font-mono);
  color: var(--bp-text-accent);
  font-size: 12px;
  padding: 2px 6px;
  background: rgba(176, 137, 255, 0.14);
  border-radius: 2px;
}

.signals__slider-row {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
}

.signals__slider-row input[type="range"] {
  flex: 1;
}

.signals__slider-value {
  font-size: 12px;
  color: var(--bp-text-accent);
  min-width: 60px;
  text-align: right;
}

@media (max-width: 980px) {
  .signals__pwm-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .signals__pwm-row {
    grid-template-columns: 1fr;
  }

  .signals__slider-row {
    flex-wrap: wrap;
  }

  .signals__slider-value {
    min-width: auto;
    text-align: left;
  }
}