/* 
   TRACKABLE LIST VIEW STYLES
   Hierarchy display, search/filter controls, list-specific layouts
*/

/* ========================================
   HIERARCHY VISUAL STRUCTURE
   ======================================== */

.trackable-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: var(--color-light-gray);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
  cursor: pointer;
  transition: all 0.2s;
  gap: var(--space-md);
  position: relative;
  border-left: 4px solid transparent;
  --indentation-unit: calc(3 * var(--space-lg));
  margin-left: calc(var(--level) * var(--indentation-unit));
}

.trackable-left {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 1;
  flex-wrap: wrap;
  min-width: 0;
}

.trackable-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.trackable-title {
  font-weight: 500;
  color: var(--color-dark);
  cursor: pointer;
  flex-shrink: 0;
}

.trackable-title-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.trackable-meta-row {
  display: contents;
}

.trackable-status-line {
  font-size: var(--size-xs);
  color: var(--color-danger);
  font-weight: 600;
}

/* ========================================
   HIERARCHICAL PARENT-CHILD RELATIONSHIPS
   ======================================== */

.trackable-parent-card {
  background-color: var(--color-light-gray);
  border-left: 4px solid var(--color-primary);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  margin-top: var(--space-md);
}

.trackable-child-item {
  border-left: 1px dashed var(--color-border);
  padding-left: calc(var(--space-lg) * 3);
  background: rgba(0, 123, 255, 0.02);
  margin-bottom: var(--space-xs);
}

/* Hierarchy visual connectors */
.child-trackable {
  position: relative;
}

.child-trackable::after {
  content: '';
  position: absolute;
  left: 0;
  top: 100%;
  width: 0;
  height: var(--space-sm);
  border-left: 2px dashed var(--color-border);
  border-color: inherit;
  z-index: 1;
}

.parent-trackable::after {
  content: '';
  position: absolute;
  left: 0;
  top: -var(--space-sm);
  width: var(--space-lg);
  height: var(--space-sm);
  border-style: solid;
  border-width: 1px 0 0 1px;
  border-color: var(--color-border);
  border-radius: var(--radius-sm) 0 0 0;
}

.parent-trackable::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: calc(var(--space-lg) * 3);
  height: 0;
  border-top: 2px solid;
  border-color: inherit;
  z-index: 1;
}

/* Status-based connector colors */
.trackable-item.status-due.parent-trackable::before {
  border-color: var(--color-warning);
}

.trackable-item.status-overdue.parent-trackable::before {
  border-color: var(--color-danger);
}

.trackable-item.completed.parent-trackable::before {
  border-color: var(--color-success);
}

.parent-trackable::before {
  border-color: var(--color-border);
}

/* ========================================
   EXPANSION/COLLAPSE CONTROLS
   ======================================== */

.expander-indicator {
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--size-xs);
  cursor: pointer;
  padding: 4px;
  user-select: none;
  z-index: 10;
  color: var(--color-gray);
  transition: transform 0.3s ease, color 0.2s ease;
}

.expander-indicator:hover {
  color: var(--color-primary);
  transform: translateY(-50%) scale(1.2);
}

.trackable-item.collapsed .expander-indicator {
  transform: translateY(-50%) rotate(-90deg);
}

/* ========================================
   STATUS INDICATORS
   ======================================== */

.trackable-item.status-due { 
  border-left-color: var(--color-warning); 
  background: rgba(255, 193, 7, 0.05); 
}

.trackable-item.status-overdue { 
  border-left-color: var(--color-danger); 
  background: rgba(220, 53, 69, 0.05); 
}

.trackable-item.completed { 
  border-left-color: var(--color-success) !important; 
  background: rgba(40, 167, 69, 0.02) !important;
  opacity: 0.7; 
  filter: grayscale(100%) opacity(50%);
  padding-top: calc(var(--space-md) / 2);
  padding-bottom: calc(var(--space-md) / 2);
}

.trackable-item.completed .trackable-title { 
  text-decoration: line-through; 
  color: var(--color-gray); 
}

.trackable-item.partial-completion {
  border-left-color: var(--color-warning);
  background: rgba(255, 193, 7, 0.05);
}

.trackable-item.partial-completion .trackable-title::after {
  content: ' 👍';
  color: var(--color-warning);
  font-size: 0.8em;
  opacity: 0.8;
}

/* ========================================
   SEARCH & FILTER CONTROLS
   ======================================== */

/* Workspace Controls Row */
.workspace-controls-row {
  background: #f8fafc;
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md);
  margin: 0 -var(--space-lg) var(--space-lg) -var(--space-lg);
}

/* Workspace Controls Row - inside list view */
#trackable-list-view .workspace-controls-row {
  background: #f8fafc;
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md);
  margin: -var(--space-lg) -var(--space-lg) var(--space-lg) -var(--space-lg);
  display: block; /* Always visible when inside list view */
}

.hierarchy-controls-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.workspace-controls-row .hierarchy-controls-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.hierarchy-filter-group {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  background: white;
  color: var(--color-gray);
  border-radius: var(--radius-sm);
  font-size: var(--size-xs);
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
}

.filter-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.filter-btn:hover:not(.active) {
  background: var(--color-light-gray);
  border-color: var(--color-primary);
}

.search-dropdown-toggle {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-xs);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.search-dropdown-toggle:hover {
  background: var(--color-light-gray);
  border-color: var(--color-primary);
}

.search-dropdown-toggle svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.search-input-group {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  margin-bottom: var(--space-md);
  position: relative;
}

.search-input-group.visible {
  max-height: 60px;
  padding-top: var(--space-sm);
}

.hierarchy-search-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--size-sm);
  transition: border-color 0.2s;
}

.hierarchy-search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.clear-search-btn {
  position: absolute;
  right: var(--space-sm);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: var(--size-lg);
  color: var(--color-gray);
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s;
}

.clear-search-btn:hover {
  background: var(--color-danger);
  color: white;
}

/* ========================================
   SEARCH RESULT HIGHLIGHTING
   ======================================== */

.trackable-title mark {
  background: rgba(255, 235, 59, 0.6);
  color: inherit;
  padding: 0;
  border-radius: 2px;
  font-weight: 600;
}

/* ========================================
   SECTION HEADERS & COLLAPSIBLE SECTIONS
   ======================================== */

.section-header {
  font-size: var(--size-lg);
  font-weight: 600;
  color: var(--color-dark);
  margin: var(--space-lg) 0 var(--space-md) 0;
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border-light);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  user-select: none;
  transition: color 0.2s ease;
}

.section-header:hover {
  color: var(--color-primary);
}

.section-header::before {
  content: '▼';
  margin-right: var(--space-sm);
  transition: transform 0.3s ease;
  display: inline-block;
  font-size: 0.8em;
  color: var(--color-gray);
}

.section-header:not(.expanded)::before {
  transform: rotate(-90deg);
}

#completedCount {
  font-weight: 700;
  color: var(--color-success);
  font-size: 0.9em;
  margin-left: auto;
}

.completed-trackables-list {
  transition: all 0.3s ease;
  overflow: hidden;
}

.collapsible-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--space-lg);
  transition: all 0.2s;
}

.collapsible-toggle {
  font-size: var(--size-lg);
  font-weight: bold;
  color: var(--color-gray);
  transition: transform 0.2s;
  user-select: none;
}

.collapsible-content {
  transition: all 0.3s ease;
  overflow: hidden;
}

.collapsible-content.collapsed {
  max-height: 0;
  margin: 0;
  padding: 0;
  opacity: 0;
}

.collapsible-header.collapsed .collapsible-toggle {
  transform: rotate(-90deg);
}


/* ========================================
   MANILA FOLDER TAB SYSTEM
   ======================================== */

.workbench-tabs {
  display: flex;
  align-items: flex-end;
  margin-bottom: 0;
  background: transparent;
  border-bottom: 2px solid var(--color-border);
  padding: 0;
  gap: 4px;
}

.workbench-tab {
  background: var(--color-light-gray);
  border: 2px solid var(--color-border);
  border-bottom: none;
  border-radius: 12px 12px 0 0;
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  font-size: var(--size-xs);
  color: var(--color-gray);
  transition: all 0.2s ease;
  position: relative;
  z-index: 1;
  margin-bottom: 0;
  white-space: nowrap;
}

.workbench-tab:hover:not(.active) {
  background: #e2e8f0;
  color: var(--color-dark);
  transform: translateY(-2px);
}

.workbench-tab.active {
  background: white;
  color: var(--color-dark);
  border-color: var(--color-border);
  z-index: 2;
  box-shadow: 0 -4px 8px rgba(0, 0, 0, 0.1);
  margin-bottom: -2px; /* Connect to workspace */
}

/* Distinguish create button from view tabs */
.create-btn {
  background: var(--color-primary) !important;
  color: white !important;
  margin-left: auto;
  border-radius: var(--radius-sm) !important;
  border: 2px solid var(--color-primary) !important;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.2);
  cursor: pointer;
  font-size: var(--size-sm);
}

.create-btn:hover {
  background: var(--color-primary-hover) !important;
  border-color: var(--color-primary-hover) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.create-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.2);
}

/* Ensure create button doesn't get active state styling like view tabs */
.create-btn.active {
  background: var(--color-primary) !important;
  color: white !important;
}

/* ========================================
   ACTION PANEL
   ======================================== */

.action-panel-header-buttons {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  justify-content: space-evenly;
}

.action-panel-header-buttons .btn {
  flex: 1;
  margin: 0;
  min-height: 48px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ========================================
   TRACKABLES NAVIGATION
   ======================================== */

.trackables-navigation {
  display: flex;
  justify-content: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border-light);
}

.timeline-btn {
  padding: var(--space-sm) var(--space-lg);
  background: rgba(0, 123, 255, 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(0, 123, 255, 0.2);
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.timeline-btn:hover {
  background: var(--color-primary);
  color: white;
}

/* ========================================
   SPECIAL CARDS
   ======================================== */

.trackables-card {
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  overflow: visible;
  min-height: fit-content;
}

.card-title {
  font-size: var(--size-lg);
  font-weight: 600;
  color: var(--color-dark);
  margin: 0 0 var(--space-lg) 0;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* ========================================
   PLAYLIST CONTEXT HEADER
   ======================================== */

.context-content {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.context-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.context-text {
  flex: 1;
  font-weight: 600;
  color: var(--color-primary);
  font-size: var(--size-sm);
}

.context-cancel-btn {
  background: transparent;
  border: 1px solid rgba(0, 123, 255, 0.3);
  border-radius: 50%;
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  transition: all 0.2s ease;
}

.context-cancel-btn:hover {
  background: rgba(0, 123, 255, 0.1);
  border-color: var(--color-primary);
  transform: scale(1.1);
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   EMPTY STATE
   ======================================== */

.empty-state-card {
  text-align: center;
  padding: var(--space-xl);
  background: var(--color-light-gray);
  border-radius: var(--radius-md);
  color: var(--color-gray);
  border: 1px dashed var(--color-border);
  margin: var(--space-lg) 0;
}

.empty-state-card p {
  margin: 0;
  font-size: var(--size-md);
  line-height: 1.5;
}

/* ========================================
   LIST CONTAINER
   ======================================== */

.trackables-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-height: 200px;
}

/* ========================================
   MOBILE RESPONSIVENESS
   ======================================== */

@media (max-width: 768px) {
.trackable-item {
    --indentation-unit: calc(2 * var(--space-md));
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
    margin-left: calc(var(--level) * var(--space-lg));
    width: calc(100vw - calc(var(--level) * var(--indentation-unit)));
    max-width: calc(100vw - calc(var(--level) * var(--indentation-unit)));
    box-sizing: border-box;
  }
  
  .trackable-left {
    width: 100%;
    justify-content: flex-start;
  }
  
.trackables-list {
    width: 100vw;
    max-width: 100vw;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  .trackable-item * {
    max-width: 100%;
    box-sizing: border-box;
  }

  .trackable-right {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    min-width: 0;
  }
  
  .trackable-child-item {
    margin-left: var(--space-sm);
    padding-left: var(--space-md);
  }
  
  .expander-indicator {
    left: -14px;
    top: 1rem;
    transform: none;
  }
  
  .section-header {
    font-size: var(--size-md);
    margin: var(--space-md) 0 var(--space-sm) 0;
  }

  .hierarchy-filter-group {
    justify-content: stretch;
    gap: var(--space-xs);
    width: 100%;
  }

  .filter-btn {
    font-size: var(--size-xs);
    padding: var(--space-xs);
    flex: 1; /* Make buttons fill available space equally */
  }

.workspace-controls-row {
    padding: var(--space-sm);
    margin: 0;
    width: 100vw;
    max-width: 100vw;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  .hierarchy-controls-container {
    flex-direction: column;
    gap: var(--space-sm);
    align-items: stretch;
  }

  .search-dropdown-toggle {
    align-self: center;
  }

.workbench-tabs {
    gap: 2px;
    width: 100vw;
    max-width: 100vw;
    margin-left: 0;
    margin-right: 0;
    box-sizing: border-box;
    overflow-x: hidden;
  }
  
  .workbench-tab {
    border-radius: 8px;
    border: 2px solid var(--color-border);
    margin-bottom: 2px;
  }
  
  .workbench-tab.active {
    margin-bottom: 0;
  }
  
  .activity-workspace {
    border-radius: 12px;
    border-top: 2px solid var(--color-border);
  }

  .action-panel-header-buttons {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .action-panel-header-buttons .btn {
    flex: none;
  }

  .context-content {
    flex-wrap: wrap;
    gap: var(--space-xs);
  }
  
  .context-text {
    font-size: var(--size-xs);
  }
}

@media (max-width: 480px) {
  .trackable-item {
    padding: var(--space-sm);
    margin-left: calc(var(--level) * var(--space-sm));
  }

  .trackable-title {
    font-size: var(--size-sm);
  }

  .schedule-badge, 
  .trackable-due-date, 
  .trackable-status, 
  .trackable-streak, 
  .child-count-badge, 
  .goal-badge, 
  .tag-badge {
    font-size: var(--size-xxs);
    padding: 0.15rem 0.3rem;
    margin-left: 0.25rem;
  }

  .priority-star {
    font-size: 1rem;
    margin-left: 0.25rem;
  }

  .expander-indicator {
    left: -12px;
    font-size: var(--size-xxs);
  }
}

/* ========================================
   PERFORMANCE OPTIMIZATIONS
   ======================================== */

.trackable-item {
  will-change: transform;
  contain: layout;
}

.trackable-title {
  will-change: contents;
}

.expander-indicator {
  will-change: transform;
}

/* Reduce repaints during scrolling */
.trackables-list {
  contain: layout style;
}