.performance-monitor {
  position: fixed;
  top: 80px;
  right: 16px;
  width: 280px;
  z-index: 1000;
  background: var(--ant-color-bg-elevated);
  border: 1px solid var(--ant-color-border);
  box-shadow: 0 4px 12px var(--ant-color-shadow);
}

.performance-monitor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--ant-color-text);
}

.performance-status {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.performance-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.performance-metrics .ant-statistic {
  text-align: center;
}

.performance-metrics .ant-statistic-title {
  font-size: 12px;
  color: var(--ant-color-text-secondary);
  margin-bottom: 4px;
}

.performance-metrics .ant-statistic-content {
  font-size: 14px;
  color: var(--ant-color-text);
}

.virtualization-status {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid var(--ant-color-border);
}

.status-label {
  font-size: 12px;
  color: var(--ant-color-text-secondary);
  font-weight: 500;
}

.performance-tips {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--ant-color-border);
}

.performance-tips h4 {
  font-size: 12px;
  color: var(--ant-color-text);
  margin-bottom: 8px;
  font-weight: 600;
}

.performance-tips ul {
  margin: 0;
  padding-left: 16px;
}

.performance-tips li {
  font-size: 11px;
  color: var(--ant-color-text-secondary);
  margin-bottom: 4px;
  line-height: 1.4;
}

/* Responsive design */
@media (max-width: 768px) {
  .performance-monitor {
    position: static;
    width: 100%;
    margin-bottom: 16px;
  }
  
  .performance-metrics {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}