/* =============================================
   PIZARRA (WHITEBOARD) - Estilos
   ============================================= */

/* --- Botón "Nueva Pizarra" alineado --- */
.module-header .btn.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* --- Lista de Pizarras --- */
.pizarras-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.pizarra-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.pizarra-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  border-color: var(--color-primary);
}

.pizarra-card-thumbnail {
  width: 100%;
  height: 180px;
  background: var(--color-card);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.pizarra-card-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pizarra-card-thumbnail .empty-thumbnail {
  color: var(--color-text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
}

.pizarra-card-thumbnail .empty-thumbnail svg {
  opacity: 0.3;
}

.pizarra-card-info {
  padding: var(--spacing-md);
}

.pizarra-card-nombre {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pizarra-card-fecha {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.pizarra-card-actions {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.pizarra-card:hover .pizarra-card-actions {
  opacity: 1;
}

.pizarra-card-actions button {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: none;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
  backdrop-filter: blur(8px);
}

.pizarra-card-actions button:hover {
  background: rgba(239, 68, 68, 0.9);
}

/* Tarjeta de "Nueva Pizarra" */
.pizarra-card-new {
  border: 2px dashed var(--color-border);
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 260px;
  gap: var(--spacing-sm);
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.pizarra-card-new:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-10, rgba(99, 102, 241, 0.05));
  transform: translateY(-4px);
}

.pizarra-card-new svg {
  width: 48px;
  height: 48px;
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.pizarra-card-new:hover svg {
  opacity: 1;
}

/* --- Editor de Pizarra (como sección inline) --- */
.pizarra-editor {
  display: none;
  flex-direction: column;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  height: calc(100vh - 160px);
  min-height: 400px;
  position: relative;
}

.pizarra-editor.active {
  display: flex;
}

/* Barra superior del editor */
.pizarra-topbar {
  height: 52px;
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 10;
  flex-shrink: 0;
}

.pizarra-topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pizarra-topbar-left .btn-volver {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.pizarra-topbar-left .btn-volver:hover {
  background: var(--color-hover);
}

.pizarra-nombre-input {
  background: transparent;
  border: 1px solid transparent;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 6px;
  width: 260px;
  transition: all 0.2s ease;
}

.pizarra-nombre-input:hover {
  border-color: var(--color-border);
}

.pizarra-nombre-input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-card);
}

.pizarra-topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pizarra-topbar-right .btn-action {
  height: 36px;
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.pizarra-topbar-right .btn-action:hover {
  background: var(--color-hover);
}

.pizarra-topbar-right .btn-action.btn-guardar {
  font-weight: 600;
}

/* Toolbar flotante lateral */
.pizarra-toolbar {
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  z-index: 10;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.pizarra-toolbar .tool-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
  position: relative;
}

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

.pizarra-toolbar .tool-btn.active {
  background: var(--color-primary-10, rgba(99, 102, 241, 0.1));
  color: var(--color-primary);
}

.pizarra-toolbar .tool-btn[title]::after {
  content: attr(title);
  position: absolute;
  left: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.pizarra-toolbar .tool-btn:hover[title]::after {
  opacity: 1;
}

.pizarra-toolbar .toolbar-separator {
  height: 1px;
  background: var(--color-border);
  margin: 4px 2px;
}

/* Panel de propiedades de herramienta */
.pizarra-props {
  position: absolute;
  top: 64px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 10;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.pizarra-props .prop-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.pizarra-props .prop-label {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.pizarra-props input[type="color"] {
  width: 28px;
  height: 28px;
  border: 2px solid var(--color-border);
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  background: none;
}

.pizarra-props input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 2px;
}

.pizarra-props input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 3px;
}

.pizarra-props input[type="range"] {
  width: 80px;
  height: 4px;
  accent-color: var(--color-primary);
}

.pizarra-props .stroke-width-value {
  font-size: 0.75rem;
  color: var(--color-text);
  min-width: 22px;
  text-align: center;
}

.pizarra-props .prop-separator {
  width: 1px;
  height: 24px;
  background: var(--color-border);
}

/* Canvas container */
.pizarra-canvas-container {
  flex: 1;
  position: relative;
  overflow: hidden;
  cursor: crosshair;
  min-height: 0;
}

.pizarra-canvas-container canvas {
  position: absolute;
  top: 0;
  left: 0;
}

/* Cursor styles based on tool */
.pizarra-canvas-container.tool-hand {
  cursor: grab;
}

.pizarra-canvas-container.tool-hand:active {
  cursor: grabbing;
}

.pizarra-canvas-container.tool-eraser {
  cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='8' fill='none' stroke='%23333' stroke-width='1.5'/%3E%3C/svg%3E") 12 12, crosshair;
}

.pizarra-canvas-container.tool-text {
  cursor: text;
}

/* Zoom indicator */
.pizarra-zoom {
  position: absolute;
  bottom: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  z-index: 10;
}

.pizarra-zoom button {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.pizarra-zoom button:hover {
  background: var(--color-hover);
}

.pizarra-zoom .zoom-value {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text);
  min-width: 48px;
  text-align: center;
  user-select: none;
}

/* Text input overlay for text tool */
.pizarra-text-input {
  position: absolute;
  background: transparent;
  border: 2px solid var(--color-primary);
  border-radius: 4px;
  padding: 4px 8px;
  font-family: 'Segoe UI', sans-serif;
  font-size: 20px;
  color: var(--color-text);
  outline: none;
  z-index: 20;
  min-width: 100px;
  min-height: 30px;
  resize: none;
  overflow: hidden;
}

/* Responsive */
@media (max-width: 768px) {
  .pizarras-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }

  .pizarra-editor {
    height: calc(100vh - 120px);
    min-height: 300px;
  }

  .pizarra-toolbar {
    position: absolute;
    top: auto;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    flex-direction: row;
    flex-wrap: wrap;
    max-width: calc(100% - 24px);
    justify-content: center;
    padding: 6px;
  }

  .pizarra-toolbar .tool-btn {
    width: 36px;
    height: 36px;
  }

  .pizarra-toolbar .toolbar-separator {
    width: 1px;
    height: 24px;
    margin: 2px 4px;
  }

  .pizarra-props {
    top: auto;
    bottom: 70px;
    flex-wrap: wrap;
    justify-content: center;
    max-width: calc(100% - 24px);
    padding: 6px 10px;
  }

  .pizarra-nombre-input {
    width: 140px;
    font-size: 0.85rem;
  }

  .pizarra-topbar-right .btn-action span {
    display: none;
  }

  .pizarra-toolbar .tool-btn[title]::after {
    display: none;
  }

  .pizarra-zoom {
    bottom: 60px;
    right: 12px;
  }
}

@media (max-width: 480px) {
  .pizarras-grid {
    grid-template-columns: 1fr;
  }
}