/* ── Canvas Editor (Inpaint mask) ─────────────────────────────────────────── */

.canvas-editor {
  position: relative;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  user-select: none;
}

/* El canvas ocupa todo el contenedor */
.canvas-editor__canvas {
  display: block;
  width: 100%;
  height: auto;
  cursor: none; /* usamos cursor personalizado */
  touch-action: none;
}

/* Toolbar encima del canvas */
.canvas-editor__toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.canvas-editor__toolbar-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.canvas-editor__toolbar-sep {
  width: 1px;
  height: 24px;
  background: var(--color-border);
  flex-shrink: 0;
}

/* Botones de herramienta */
.tool-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background: none;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 14px;
}

.tool-btn:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
}

.tool-btn.active {
  background: var(--color-primary-glow);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Slider de tamaño de pincel */
.brush-size-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.brush-size-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  min-width: 24px;
  text-align: right;
  font-family: var(--font-mono);
}

/* Indicador visual del pincel (preview) */
.brush-preview {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brush-preview__dot {
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: width 0.1s, height 0.1s;
}

/* Cursor personalizado dentro del canvas */
.canvas-editor--brush .canvas-editor__canvas { cursor: none; }
.canvas-editor--eraser .canvas-editor__canvas { cursor: crosshair; }

/* Pie del editor: instrucciones */
.canvas-editor__hint {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-dim);
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.canvas-editor__hint kbd {
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 11px;
}

/* Overlay cuando no hay imagen cargada */
.canvas-editor__empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  color: var(--color-text-dim);
  pointer-events: none;
}

/* ── Uploader ─────────────────────────────────────────────────────────────── */

.uploader {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-10) var(--space-8);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  background: var(--color-bg-input);
}

.uploader:hover,
.uploader.dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-glow);
}

.uploader.dragover { transform: scale(1.01); }

.uploader input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.uploader__icon {
  font-size: 2rem;
  margin-bottom: var(--space-3);
  opacity: 0.4;
}

.uploader__text {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.uploader__hint {
  font-size: var(--text-xs);
  color: var(--color-text-dim);
}

/* Preview de imagen cargada */
.uploader--preview {
  padding: 0;
  border-style: solid;
  border-color: var(--color-primary);
  overflow: hidden;
}

.uploader--preview img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: calc(var(--radius-lg) - 2px);
}

.uploader__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
  border-radius: calc(var(--radius-lg) - 2px);
}

.uploader--preview:hover .uploader__overlay { opacity: 1; }