.optics-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

@media (max-width: 900px) {
  .optics-grid {
    grid-template-columns: 1fr;
  }
}

.optics-field-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.optics-field {
  flex: 1 1 180px;
  min-width: 160px;
}

.optics-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.optics-summary {
  display: grid;
  gap: 8px;
}

.optics-note {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--muted);
}

.optics-advanced {
  margin-top: 12px;
}

.optics-advanced summary {
  cursor: pointer;
  font-weight: 600;
}

.optics-advanced .optics-field-row {
  margin-top: 8px;
}

#optics-ray {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  min-height: 240px;
}