.card {
  margin-top: 16px;
  padding: 12px;
  background: rgba(255,255,255,0.03);
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.05);
}
.card-title {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}
.bars {
  display: block;
  width: 100%;
  height: 200px;
  padding: 0;
  background: #0c0f16;
  border-radius: 10px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.02);
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #5eead4;
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  visibility: hidden;
}
.spinner.on { visibility: visible; }

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }