.tool-ui {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.drop-zone {
  border: 2px dashed var(--color-border);
  border-radius: 12px;
  padding: 2.5rem;
  text-align: center;
  cursor: pointer;
  background: var(--color-surface);
  transition: border-color 0.2s, background-color 0.2s;
}

.drop-zone.drag-over {
  border-color: var(--color-accent);
  background: rgba(79, 142, 247, 0.05);
}

.file-label {
  color: var(--color-accent);
  cursor: pointer;
  text-decoration: underline;
  font-weight: 500;
}

.editor-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.25rem;
}

.editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.875rem;
}

.image-name {
  font-weight: 600;
  color: var(--color-snow);
  word-break: break-all;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.control-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.control-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--color-snow);
}

.control-val {
  font-family: 'JetBrains Mono', monospace;
  color: var(--color-accent);
}

.custom-range {
  width: 100%;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.color-picker-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.color-box {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  cursor: pointer;
  padding: 0;
  background: transparent;
}

.preset-btn {
  padding: 0.35rem 0.65rem;
  background: #0F1117;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.75rem;
  color: var(--color-snow);
  cursor: pointer;
  transition: all 0.2s;
}

.preset-btn:hover {
  border-color: var(--color-accent);
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-snow);
  cursor: pointer;
  user-select: none;
}

.canvas-preview-container {
  width: 100%;
  max-height: 440px;
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: repeating-conic-gradient(#202330 0% 25%, #151722 0% 50%) 50% / 20px 20px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  padding: 1rem;
}

.canvas-preview-container canvas {
  max-width: 100%;
  max-height: 420px;
  object-fit: contain;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-primary {
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  transition: opacity 0.2s;
  text-align: center;
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.85;
}

.btn-secondary {
  background: transparent;
  color: var(--color-snow);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.4rem 0.8rem;
  font-size: 0.825rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.ad-post-op {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
  font-size: 0.75rem;
  color: var(--color-muted);
  text-align: center;
}