/* Global Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  background: white;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

.header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 30px;
  text-align: center;
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  font-weight: 700;
}

.header p {
  font-size: 1.1rem;
  opacity: 0.9;
}

.main-content {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 0;
  min-height: 600px;
}

.parameters-panel {
  padding: 30px;
  overflow-y: auto;
  max-height: calc(100vh - 200px);
  background: #f8f9fa;
}

.preview-panel {
  background: #ffffff;
  border-left: 2px solid #e0e0e0;
  padding: 30px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: calc(100vh - 200px);
}

.parameter-section {
  background: white;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.parameter-section:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 2px solid #667eea;
}

.section-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: #333;
  display: flex;
  align-items: center;
  gap: 8px;
}

.lock-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  padding: 5px 10px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.lock-btn:hover {
  background: #f0f0f0;
}

.lock-btn.locked {
  color: #667eea;
}

.form-group {
  margin-bottom: 15px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: #555;
  margin-bottom: 6px;
}

.form-select,
.form-input {
  width: 100%;
  padding: 10px 12px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  background: white;
}

.form-select:focus,
.form-input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
  transition: all 0.2s ease;
  font-size: 0.9rem;
}

.checkbox-label:hover {
  background: #f0f0f0;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: #667eea;
}

.preview-image-container {
  flex: 1;
  background: #f8f9fa;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  min-height: 300px;
  border: 2px dashed #ddd;
  position: relative;
  overflow: hidden;
}

.preview-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
}

.preview-placeholder {
  text-align: center;
  color: #999;
  padding: 40px 20px;
}

.preview-placeholder i {
  font-size: 4rem;
  margin-bottom: 15px;
  display: block;
  opacity: 0.3;
}

.loading-spinner {
  border: 4px solid #f3f3f3;
  border-top: 4px solid #667eea;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.prompt-display {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 15px;
  margin-bottom: 15px;
  font-size: 0.85rem;
  color: #555;
  max-height: 150px;
  overflow-y: auto;
  border: 1px solid #e0e0e0;
}

.prompt-display.empty {
  color: #999;
  font-style: italic;
}

.controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 15px;
}

.btn {
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  grid-column: 1 / -1;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary:disabled {
  background: #ccc;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: white;
  color: #667eea;
  border: 2px solid #667eea;
}

.btn-secondary:hover {
  background: #667eea;
  color: white;
}

.btn-success {
  background: #10b981;
  color: white;
  grid-column: 1 / -1;
}

.btn-success:hover {
  background: #059669;
}

.action-buttons {
  display: flex;
  gap: 10px;
}

.action-buttons .btn {
  flex: 1;
}

@media (max-width: 1024px) {
  .main-content {
    grid-template-columns: 1fr;
  }
  
  .preview-panel {
    position: relative;
    height: auto;
    border-left: none;
    border-top: 2px solid #e0e0e0;
  }
}