.control-panel {
  padding: 16px;
  background: #16213e;
  border-bottom: 2px solid #333;
  max-height: 40vh;
  overflow-y: auto;
}

.panel-header h2 {
  color: #e94560;
  margin-bottom: 16px;
  font-size: 18px;
}

.control-section {
  margin-bottom: 16px;
  padding: 12px;
  background: #1a1a2e;
  border-radius: 8px;
}

.control-section h3 {
  color: #fff;
  font-size: 14px;
  margin-bottom: 8px;
}

.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  margin-right: 8px;
  margin-bottom: 8px;
  transition: opacity 0.2s;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: #0f3460;
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: #1a4a7a;
}

.btn-success {
  background: #16c79a;
  color: #fff;
}

.btn-success:hover:not(:disabled) {
  background: #19a87f;
}

.btn-warning {
  background: #f5a623;
  color: #fff;
}

.btn-warning:hover:not(:disabled) {
  background: #d4891a;
}

.info-text {
  color: #aaa;
  font-size: 12px;
  margin-top: 8px;
}

.compute-mode-selector {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.compute-mode-selector .toggle-btn {
  padding: 6px 14px;
  border: 2px solid #444;
  background: #1a1a2e;
  color: #aaa;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.2s;
}

.compute-mode-selector .toggle-btn.active {
  border-color: #4a90d9;
  background: #1a4a7a;
  color: #fff;
}

.compute-mode-selector .toggle-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.tool-selector {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.tool-selector label {
  color: #fff;
  font-size: 13px;
  cursor: pointer;
}

.tool-selector input {
  margin-right: 8px;
}

.progress-container {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.progress-bar {
  flex: 1;
  height: 8px;
  background: #333;
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #f5a623, #16c79a);
  border-radius: 4px;
  transition: width 0.1s ease;
}

.progress-text {
  color: #aaa;
  font-size: 12px;
  white-space: nowrap;
  min-width: 100px;
  text-align: right;
}