.config-viewer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1001;
}

.config-viewer {
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  max-width: 900px;
  width: 95%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid #eee;
  flex-shrink: 0;
}

.viewer-header h2 {
  margin: 0;
  font-size: 18px;
  color: #333;
}

.close-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #999;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-btn:hover {
  color: #333;
}

.viewer-content {
  display: flex;
  gap: 20px;
  flex: 1;
  overflow: hidden;
  padding: 20px;
}

.config-list {
  min-width: 200px;
  max-width: 250px;
  border-right: 1px solid #eee;
  padding-right: 20px;
  overflow-y: auto;
}

.config-list h3 {
  margin: 0 0 10px 0;
  font-size: 14px;
  color: #333;
}

.config-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px;
  margin-bottom: 8px;
  background: #f5f5f5;
  border-radius: 4px;
  font-size: 13px;
  gap: 8px;
}

.config-item span {
  flex: 1;
  word-break: break-all;
}

.download-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  padding: 0;
  flex-shrink: 0;
}

.config-preview {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 400px;
  overflow: hidden;
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.preview-header h3 {
  margin: 0;
  font-size: 14px;
  color: #333;
}

.copy-btn {
  padding: 6px 12px;
  background: #1677ff;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: background 0.3s;
}

.copy-btn:hover {
  background: #0b66d4;
}

.config-text {
  flex: 1;
  background: #f5f5f5;
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 12px;
  overflow: auto;
  font-size: 12px;
  line-height: 1.5;
  color: #333;
  margin: 0;
  font-family: 'Courier New', monospace;
}

.viewer-actions {
  display: flex;
  gap: 10px;
  padding: 20px;
  border-top: 1px solid #eee;
  flex-shrink: 0;
}

.btn-download-all,
.btn-close {
  padding: 10px 16px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-download-all {
  flex: 1;
  background: #52c41a;
  color: white;
}

.btn-download-all:hover:not(:disabled) {
  background: #389e0d;
  box-shadow: 0 2px 8px rgba(82, 196, 26, 0.3);
}

.btn-download-all:disabled {
  background: #ccc;
  cursor: not-allowed;
}

.btn-close {
  flex: 1;
  background: #f5f5f5;
  color: #333;
}

.btn-close:hover {
  background: #e6e6e6;
}

@media (max-width: 768px) {
  .viewer-content {
    flex-direction: column;
  }

  .config-list {
    max-width: none;
    border-right: none;
    border-bottom: 1px solid #eee;
    padding-right: 0;
    padding-bottom: 15px;
  }

  .config-preview {
    min-width: auto;
  }
}