.signal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.signal {
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.6);
  border-left: 3px solid var(--accent);
}

.signal-label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.signal-value {
  font-size: 0.95rem;
}

.pattern-stack {
  display: grid;
  gap: 2rem;
}

.pattern figcaption {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.sparkline.placeholder {
  height: 48px;
  background: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.08) 10%,
    rgba(0, 0, 0, 0.02) 10%,
    rgba(0, 0, 0, 0.02) 20%
  );
}