.project-tab-container {
  display: grid;
  height: 100%;
  min-height: 0; /* 允许在flex容器内收缩 */
}

.left-panel, .middle-panel, .right-panel {
  height: 100%;
  padding: 16px;
}

.left-panel, .right-panel {
  overflow-y: auto;
}

.middle-panel {
  overflow: auto; /* 允许滚动，由内部容器处理 */
  display: flex;
  flex-direction: column;
}

.left-panel {
  background: #f8f9fa;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 0;
}

.middle-panel {
  background: #ffffff;
  border-left: 1px solid #e0e0e0;
  border-right: 1px solid #e0e0e0;
}

.right-panel {
  background: #fafafa;
}

.project-info-card {
  margin-bottom: 8px;
}

.agent-chip {
  display: inline-block;
  background: #e3f2fd;
  color: #1976d2;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  margin-right: 8px;
}

.status-chip {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
}

.status-requirement_document { background: #fff3e0; color: #f57c00; }
.status-technical_document { background: #e8f5e8; color: #388e3c; }
.status-code { background: #e3f2fd; color: #1976d2; }
.status-test { background: #f3e5f5; color: #7b1fa2; }
.status-release { background: #e8f5e8; color: #388e3c; }

.project-description {
  color: #666;
  line-height: 1.5;
  margin: 12px 0;
}

.project-meta {
  display: flex;
  gap: 16px;
  margin: 12px 0;
  color: #888;
  font-size: 14px;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.meta-item mat-icon {
  font-size: 16px;
  height: 16px;
  width: 16px;
}

.progress-section {
  margin: 16px 0;
}

.progress-label {
  font-size: 14px;
  color: #666;
  margin-bottom: 4px;
}

.progress-text {
  font-size: 12px;
  color: #888;
  text-align: right;
  margin-top: 4px;
}

.latest-log {
  background: #f5f5f5;
  border-radius: 4px;
  padding: 12px;
  margin-top: 16px;
}

.log-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #666;
  margin-bottom: 8px;
}

.log-content {
  font-size: 12px;
  color: #888;
}

.steps-accordion {
  flex: 0;
  min-height: 0;
  overflow-y: auto;
  max-height: 300px;
}

.step-content {
  padding: 12px 0;
}

.current-step {
  color: #1976d2;
  font-weight: 500;
}

.step-status {
  display: inline-block;
  background: #f5f5f5;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  color: #666;
}

.no-project {
  text-align: center;
  padding: 40px 20px;
  color: #666;
}

.splitter {
  background: #f0f0f0;
  cursor: col-resize;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.splitter:hover, .splitter.dragging {
  background: #e0e0e0;
}

.splitter-handle {
  width: 4px;
  height: 40px;
  background: #ccc;
  border-radius: 2px;
}

.splitter.dragging .splitter-handle {
  background: #007bff;
}

.conversation-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0; /* 允许flex容器缩小 */
  overflow: auto; /* 允许滚动 */
}

.ai-response-wrapper {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.placeholder {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #999;
  text-align: center;
  padding: 40px 20px;
}

.placeholder mat-icon {
  font-size: 48px;
  height: 48px;
  width: 48px;
  margin-bottom: 16px;
  color: #ccc;
}

.placeholder p {
  font-size: 14px;
  color: #888;
}

.document-list-section {
  margin-top: 16px;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  
  app-document-list {
    flex: 1;
    min-height: 0;
  }
}