.workspace {
  display: flex;
  gap: 2rem;
  flex-direction: column;
}

@media (min-width: 900px) {
  .workspace {
    flex-direction: row;
    align-items: flex-start;
  }
}

.settings-panel {
  flex: 1;
  min-width: 300px;
  background-color: var(--bg-primary);
  padding: 1.5rem;
  border-radius: var(--card-radius);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.preview-area {
  flex: 2;
  background-color: var(--bg-primary);
  border-radius: var(--card-radius);
  border: 1px solid var(--border-color);
  padding: 1rem;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.setting-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.radio-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.radio-btn {
  flex: 1;
  text-align: center;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--btn-radius);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
  background-color: var(--bg-tertiary);
}

.radio-btn.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.comparison-container {
  position: relative;
  display: inline-block;
  line-height: 0;
  max-width: 100%;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  user-select: none;
}

.comparison-image {
  display: block;
  max-width: 100%;
  height: auto;
}

.comparison-overlay {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 50%;
  overflow: hidden;
  border-right: 2px solid rgba(255, 255, 255, 0.8);
}

.comparison-overlay img {
  height: 100%;
  width: auto;
  max-width: none;
  object-fit: cover; /* Optional, but height 100% does the work mostly */
}

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
  backdrop-filter: blur(4px);
  border-radius: var(--card-radius);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--bg-tertiary);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.result-meta {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-tertiary);
  text-align: center;
}