.editor-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 20px;
}

.editor-panel,
.preview-panel {
  background: #fff;
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.editor-actions {
  display: flex;
  gap: 6px;
}

.svg-textarea {
  width: 100%;
  min-height: 320px;
  padding: 14px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--gray-50);
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
  tab-size: 2;
  flex: 1;
}

.svg-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.svg-textarea::placeholder {
  color: var(--gray-400);
}

.preview-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.checkerboard-bg {
  flex: 1;
  min-height: 320px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-image:
    linear-gradient(45deg, #e5e7eb 25%, transparent 25%),
    linear-gradient(-45deg, #e5e7eb 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e5e7eb 75%),
    linear-gradient(-45deg, transparent 75%, #e5e7eb 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
  position: relative;
}

.svg-preview-container {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 100%;
  padding: 16px;
}

.svg-preview-container svg {
  max-width: 100%;
  max-height: 280px;
}

/* Settings */
.settings-section {
  background: #fff;
  border-radius: var(--border-radius);
  padding: 20px;
  margin-top: 20px;
  box-shadow: var(--shadow);
}

.settings-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.setting-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.setting-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-700);
}

.radio-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
  font-size: 0.9rem;
  color: var(--gray-600);
}

.radio-option:hover {
  border-color: var(--primary);
  background: #eef2ff;
}

.radio-option input:checked + span {
  color: var(--primary);
  font-weight: 600;
}

.radio-option:has(input:checked) {
  border-color: var(--primary);
  background: #eef2ff;
}

.radio-option input {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
}

.color-pick-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.color-picker {
  width: 40px;
  height: 32px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  cursor: pointer;
  padding: 2px;
}

.color-value {
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* Action Section */
.action-section {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

/* Info Grid */
.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.info-item {
  padding: 16px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
}

.info-item h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.info-item p {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* Toast notification */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gray-800);
  color: #fff;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 0.9rem;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
  .editor-layout {
    grid-template-columns: 1fr;
  }

  .svg-textarea {
    min-height: 200px;
  }

  .checkerboard-bg {
    min-height: 200px;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }

  .action-section {
    flex-direction: column;
  }

  .action-section .btn {
    width: 100%;
  }

  .radio-group {
    gap: 6px;
  }

  .radio-option {
    padding: 6px 10px;
    font-size: 0.85rem;
  }
}