body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: #f5f5f5;
  min-height: 100vh;
}

#root {
  min-height: 100vh;
}

.app-header {
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  padding: 24px 0;
  margin-bottom: 24px;
}

.app-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px 24px;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

.app-title {
  margin: 0;
  font-size: 28px;
  font-weight: 600;
  color: #1890ff;
}

.app-subtitle {
  margin: 4px 0 0;
  color: #8c8c8c;
  font-size: 14px;
}

.ant-card {
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.ant-card-head {
  border-bottom: 1px solid #f0f0f0;
}

.ant-tabs-card > .ant-tabs-nav .ant-tabs-tab {
  background: #fafafa;
  border-color: #f0f0f0;
}

.ant-tabs-card > .ant-tabs-nav .ant-tabs-tab-active {
  background: #fff;
  border-bottom-color: #fff;
}

.json-display {
  background: #fafafa;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  padding: 12px;
  margin-top: 12px;
  font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
  font-size: 12px;
  overflow: auto;
  max-height: 300px;
  white-space: pre-wrap;
  word-wrap: break-word;
}

@media (max-width: 768px) {
  .app-container {
    padding: 0 12px 12px;
  }
  
  .header-content {
    padding: 0 12px;
  }
  
  .app-title {
    font-size: 22px;
  }
}