/* ============================================================
   Estilos específicos de cada vista
   ============================================================ */

/* ---------------------------------------------------------------
   Login / registro
   --------------------------------------------------------------- */
.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
}

.auth-branding {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-16);
  background: linear-gradient(160deg, var(--color-primary-600), var(--color-primary-400));
  color: #fff;
  position: relative;
  overflow: hidden;
}

.auth-branding-content {
  position: relative;
  z-index: 1;
  max-width: 420px;
}

.auth-branding .sidebar-logo-text {
  color: #fff;
}

.auth-tagline {
  margin-top: var(--space-6);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.auth-subtext {
  margin-top: var(--space-4);
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.85);
  line-height: var(--line-height-base);
}

.auth-branding-illustration {
  margin-top: var(--space-10);
  opacity: 0.95;
}

.auth-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background: var(--color-bg);
}

.auth-card {
  width: 100%;
  max-width: 380px;
  padding: var(--space-8);
}

.auth-card-logo {
  display: none;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.auth-card h2 {
  margin-bottom: var(--space-1);
}

.auth-card-subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-6);
}

.switch-mode {
  text-align: center;
  margin-top: var(--space-5);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.switch-mode a {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

@media (max-width: 900px) {
  .auth-shell {
    grid-template-columns: 1fr;
  }

  .auth-branding {
    display: none;
  }

  .auth-card-logo {
    display: flex;
  }
}

/* ---------------------------------------------------------------
   Tabs (compat interno; ya no se usan visualmente, la navegación
   principal vive en el sidebar, pero se mantienen como contenedor
   lógico de paneles)
   --------------------------------------------------------------- */
.tab-panel {
  animation: view-fade-in var(--transition-base) ease;
}

@keyframes view-fade-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------------------------------------------------------------
   Tareas: formulario de alta
   --------------------------------------------------------------- */
.new-task-card {
  padding: var(--space-5);
}

.new-task-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.new-task-row {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.new-task-row .input-group,
.new-task-row .input {
  flex: 1;
  min-width: 160px;
}

.new-task-row #new-task-title {
  flex: 2;
  min-width: 220px;
}

.new-task-details .custom-select {
  min-width: 130px;
}

/* ---------------------------------------------------------------
   Barra de filtros
   --------------------------------------------------------------- */
.filters-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.filters-bar .input-group {
  flex: 1.5;
  min-width: 180px;
}

.filters-bar .custom-select {
  min-width: 130px;
  flex: 1;
}

/* ---------------------------------------------------------------
   Lista de tareas
   --------------------------------------------------------------- */
.task-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.task-item {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-left: 3px solid transparent;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  animation: task-enter var(--transition-slow);
}

@keyframes task-enter {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.task-item.task-leaving {
  animation: task-leave var(--transition-base) ease forwards;
}

@keyframes task-leave {
  to {
    opacity: 0;
    transform: translateX(24px);
  }
}

.task-item:hover {
  box-shadow: var(--shadow-md);
}

.task-item.priority-high {
  border-left-color: var(--color-priority-high);
}
.task-item.priority-medium {
  border-left-color: var(--color-priority-medium);
}
.task-item.priority-low {
  border-left-color: var(--color-priority-low);
}

.task-main-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.task-main-row > .checkbox {
  margin-top: 2px;
}

.task-title-block {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.task-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  word-break: break-word;
  transition: color var(--transition-fast);
}

.task-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  word-break: break-word;
}

/* Combinador de hijo directo (>) entre .task-item y .task-main-row: así el
   estado completed/overdue de una tarea padre no "gotea" visualmente a los
   títulos de las subtareas anidadas dentro de su .subtask-section. */
.task-item.completed > .task-main-row .task-title {
  text-decoration: line-through;
  color: var(--color-text-muted);
}

.task-item.overdue > .task-main-row .task-title {
  color: var(--color-danger);
}

.task-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: 2px;
}

.due-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.due-badge-overdue {
  color: var(--color-danger);
  font-weight: var(--font-weight-medium);
}

.subtask-count-badge {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 2px var(--space-2);
}

.owner-badge,
.permission-badge {
  font-size: var(--font-size-xs);
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.permission-badge.permission-write {
  color: var(--color-success);
  border-color: transparent;
  background: var(--color-success-bg);
}

.task-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex-shrink: 0;
}

/* Menú "..." de acciones en móvil (mismos botones, distinta presentación).
   En desktop .task-actions fluye normal y el botón "..." queda oculto; la
   apertura/cierre la controla tasksView.js con la clase .is-open. */
.actions-menu {
  position: relative;
}

.actions-menu-summary {
  display: none;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
}

.actions-menu-summary:hover {
  background: var(--color-surface-hover);
}

@media (max-width: 640px) {
  .actions-menu-summary {
    display: inline-flex;
  }

  .task-actions {
    display: none;
  }

  .actions-menu.is-open .task-actions {
    display: flex;
    position: absolute;
    right: 0;
    top: calc(100% + 4px);
    flex-direction: column;
    align-items: stretch;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--space-1);
    min-width: 160px;
    z-index: 25;
    animation: select-menu-in var(--transition-fast) ease;
  }

  .actions-menu.is-open .task-actions .btn {
    justify-content: flex-start;
    width: 100%;
  }
}

.task-edit-form {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.task-edit-actions {
  display: flex;
  gap: var(--space-2);
}

.tasks-counter {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  text-align: center;
}

/* ---------------------------------------------------------------
   Subtareas
   --------------------------------------------------------------- */
.subtask-section {
  margin-top: var(--space-3);
  padding-left: calc(20px + var(--space-3));
  border-left: 2px dashed var(--color-border);
  margin-left: 9px;
}

.subtask-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.subtask-item {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--color-surface-hover);
  border-left-width: 2px;
}

.subtask-item .task-title {
  font-size: var(--font-size-sm);
}

.subtask-loading,
.subtask-empty {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  padding: var(--space-1) 0;
}

.subtask-add-form {
  display: flex;
  gap: var(--space-2);
}

.subtask-add-form input {
  flex: 1;
  font-size: var(--font-size-sm);
}

.subtask-toggle-btn .icon {
  transition: transform var(--transition-fast);
}

.subtask-toggle-btn.is-expanded .icon {
  transform: rotate(90deg);
}

/* ---------------------------------------------------------------
   Dashboard
   --------------------------------------------------------------- */
.stats-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
}

.stat-card {
  position: relative;
  overflow: hidden;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.stat-card-icon {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.stat-card-total .stat-card-icon {
  background: var(--color-primary-50);
  color: var(--color-primary);
}
.stat-card-completed .stat-card-icon {
  background: var(--color-success-bg);
  color: var(--color-success);
}
.stat-card-pending .stat-card-icon {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}
.stat-card-overdue .stat-card-icon {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.stat-card-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
}

.stat-card-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.stat-card-completed .stat-card-value {
  color: var(--color-success);
}
.stat-card-overdue .stat-card-value {
  color: var(--color-danger);
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  align-items: stretch;
}

@media (max-width: 900px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

.stats-section {
  padding: var(--space-5);
}

.stats-section h3 {
  margin-bottom: var(--space-4);
}

.donut-chart-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.donut-chart {
  position: relative;
  width: 140px;
  height: 140px;
  flex-shrink: 0;
}

.donut-chart svg {
  transform: rotate(-90deg);
}

.donut-center-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.donut-ring-bg {
  stroke: var(--color-border);
}

.donut-ring-value {
  stroke: var(--color-primary);
  stroke-linecap: round;
  transition: stroke-dashoffset 900ms var(--ease-spring);
}

.donut-center {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}

.donut-legend {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.donut-legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
}

.donut-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.bar-chart {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.bar-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.bar-label {
  width: 70px;
  flex-shrink: 0;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-align: right;
}

.bar-track {
  flex: 1;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--color-surface-hover);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  width: 0;
  background: var(--color-primary);
  transition: width 900ms var(--ease-spring);
}

.bar-fill-priority-low {
  background-color: var(--color-priority-low);
}
.bar-fill-priority-medium {
  background-color: var(--color-priority-medium);
}
.bar-fill-priority-high {
  background-color: var(--color-priority-high);
}

.bar-value {
  width: 24px;
  flex-shrink: 0;
  text-align: right;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.tag-usage-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag-usage-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tag-usage-count {
  font-size: var(--font-size-xs);
  opacity: 0.8;
}

/* ---------------------------------------------------------------
   Actividad
   --------------------------------------------------------------- */
.activity-timeline {
  display: flex;
  flex-direction: column;
}

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

.activity-item:last-child {
  border-bottom: none;
}

.activity-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary-50);
  color: var(--color-primary);
  flex-shrink: 0;
}

.activity-icon.action-deleted {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}
.activity-icon.action-completed {
  background: var(--color-success-bg);
  color: var(--color-success);
}
.activity-icon.action-shared,
.activity-icon.action-unshared {
  background: var(--color-info-bg);
  color: var(--color-info);
}

.activity-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.activity-description {
  font-size: var(--font-size-sm);
  word-break: break-word;
}

.activity-description strong {
  font-weight: var(--font-weight-semibold);
}

.activity-time {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.activity-pagination {
  text-align: center;
  margin-top: var(--space-4);
}