/* ==========================================
   HABIT TRACKER STYLES
   ========================================== */

/* ==========================================
   HABIT TRACKER MODAL - FULLSCREEN
   ========================================== */

/* Maximiza el modal de Habit Tracker (solo este modal) */
#habitTrackerModal.modal-overlay {
  padding: 0;
  align-items: stretch;
  justify-content: stretch;
}

#habitTrackerModal .modal-container.habitracker-container {
  width: 100vw;
  height: 100vh;
  max-width: none;
  max-height: none;
  border-radius: 0;
}

#habitTrackerModal .modal-content.habitracker-content {
  height: 100%;
  max-height: none;
  overflow: hidden;
}

/* En modo fullscreen, reduce padding general para aprovechar altura */
#habitTrackerModal .habitracker-body {
  padding: var(--spacing-4);
}

/* Evita scroll cuando el tab calendario está activo (debe caber completo) */
#habitTrackerModal.calendar-active .habitracker-body {
  overflow-y: hidden;
}

/* Calendar tab: quepa completo sin scroll */
#habitTrackerModal #tab-calendar.habitracker-tab-content {
  height: 100%;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

#habitTrackerModal #tab-calendar .calendar-header {
  flex-shrink: 0;
  margin-bottom: var(--spacing-3);
}

#habitTrackerModal #tab-calendar .calendar-nav-btn {
  width: 32px;
  height: 32px;
}

#habitTrackerModal #tab-calendar .calendar-title {
  font-size: var(--font-size-base);
  min-width: 160px;
}

#habitTrackerModal #tab-calendar .calendar-grid {
  flex: 1;
  height: 100%;
  min-height: 0;
  gap: var(--spacing-1);
  grid-template-rows: auto repeat(6, 1fr);
}

#habitTrackerModal #tab-calendar .calendar-day-header {
  padding: var(--spacing-1);
}

#habitTrackerModal #tab-calendar .calendar-day {
  aspect-ratio: auto;
  min-height: 0;
  padding: var(--spacing-1);
}

#habitTrackerModal #tab-calendar .calendar-day-number {
  font-size: var(--font-size-xs);
  margin-bottom: 2px;
}

#habitTrackerModal #tab-calendar .calendar-habit-indicator {
  width: 12px;
  height: 12px;
  font-size: 9px;
}

/* Habit Tracker Modal Container */
.habitracker-container {
  max-width: 1200px;
  height: 90vh;
  display: flex;
  flex-direction: column;
}

.habitracker-content {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* Habit Tracker Header */
.habitracker-header {
  padding: var(--spacing-5) var(--spacing-6);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.habitracker-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-1) 0;
}

.habitracker-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

/* Habit Tracker Tabs Navigation */
.habitracker-tabs-nav {
  display: flex;
  gap: var(--spacing-1);
  padding: var(--spacing-4) var(--spacing-6);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
  flex-shrink: 0;
}

.habitracker-tab {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--transition-base);
}

.habitracker-tab:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.habitracker-tab.active {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-xs);
}

.habitracker-tab svg {
  width: 18px;
  height: 18px;
}

/* Habit Tracker Body */
.habitracker-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-4) var(--spacing-6);
}

.habitracker-tab-content {
  display: none;
}

.habitracker-tab-content.active {
  display: block;
}

/* ==========================================
   HABITS LIST VIEW
   ========================================== */

.habits-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-5);
}

.habits-actions {
  display: flex;
  gap: var(--spacing-3);
}

.habits-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-4);
  padding-bottom: 15px;
}

.habit-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  transition: all var(--transition-base);
  cursor: pointer;
}

.habit-card:hover {
  border-color: var(--color-text-tertiary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.habit-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.habit-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.habit-info {
  flex: 1;
  min-width: 0;
}

.habit-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-1) 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.habit-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.habit-card-stats {
  display: flex;
  gap: var(--spacing-4);
  padding-top: var(--spacing-3);
  border-top: 1px solid var(--color-border);
}

.habit-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-1);
}

.habit-stat-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.habit-stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.habit-streak-fire {
  color: #FF6B35;
}

.habit-actions {
  display: flex;
  gap: var(--spacing-1);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.habit-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--transition-base);
}

.habit-action-btn:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.habit-action-btn.delete:hover {
  background: var(--color-red-bg);
  color: var(--color-red);
}

/* Empty State */
.habits-empty {
  text-align: center;
  padding: var(--spacing-12) var(--spacing-6);
  color: var(--color-text-secondary);
}

.habits-empty-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-4);
  opacity: 0.5;
}

.habits-empty-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-2) 0;
}

.habits-empty-text {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-6) 0;
}

/* ==========================================
   CALENDAR VIEW
   ========================================== */

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-3);
}

.calendar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.calendar-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--transition-base);
}

.calendar-nav-btn:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-text-tertiary);
}

.calendar-nav-btn:active {
  transform: scale(0.95);
}

.calendar-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  min-width: 200px;
  text-align: center;
}

/* Calendar sizing variables (responsive by width/height) */
.calendar-section {
  /* Se auto-ajusta con la altura visible para evitar scroll */
  --ht-cal-gap: clamp(6px, 1.2vh, 16px);
  --ht-cal-padding: clamp(6px, 1.1vh, 10px);
  --ht-cal-day-height: clamp(56px, 8.8vh, 96px);
  --ht-cal-day-padding: clamp(6px, 1.1vh, 12px);
  --ht-cal-indicator-size: clamp(16px, 2.2vh, 24px);
  --ht-cal-indicator-font: clamp(9px, 1.2vh, 12px);
  --ht-cal-day-header-font: clamp(11px, 1.3vh, 13px);
  --ht-cal-day-header-pad: clamp(4px, 1.0vh, 10px);
}

/* FIX PARA ELECTRON COMPILADO - Sobrescribe variables con valores fijos */
/* Las unidades vh no funcionan correctamente en modales fullscreen de Electron */
#habitTrackerModal .tab-habits .calendar-section {
  --ht-cal-gap: 8px !important;
  --ht-cal-padding: 7px !important;
  --ht-cal-day-height: 72px !important;
  --ht-cal-day-padding: 7px !important;
  --ht-cal-indicator-size: 20px !important;
  --ht-cal-indicator-font: 10px !important;
  --ht-cal-day-header-font: 12px !important;
  --ht-cal-day-header-pad: 6px !important;
  
  /* Asegurar que el contenedor permita overflow visible */
  min-height: 0 !important;
  flex: 1 !important;
  display: flex !important;
  flex-direction: column !important;
  overflow: visible !important;
}

#habitTrackerModal .tab-habits .calendar-grid {
  overflow: visible !important;
  min-height: 0 !important;
}

#habitTrackerModal .tab-habits .calendar-day {
  min-height: 72px !important;
  height: auto !important;
  overflow: visible !important;
}


.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--ht-cal-gap);
  padding: var(--ht-cal-padding);
  /* max-height: 65vh; Removed to allow better spacing, container handles scroll if needed */
}

.calendar-day-header {
  text-align: center;
  font-size: var(--ht-cal-day-header-font);
  font-weight: 600;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: var(--ht-cal-day-header-pad) 0;
}

.calendar-day {
  height: var(--ht-cal-day-height);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between; /* Space between number and habits */
  padding: var(--ht-cal-day-padding);
  border: 1px solid var(--color-border);
  border-radius: 16px; /* More rounded corners */
  background: var(--color-bg-primary);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05); /* Subtle shadow */
  overflow: hidden;
}

.calendar-day:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  z-index: 1;
}

.calendar-day.today {
  border: 2px solid var(--color-primary);
  background-color: var(--color-bg-tertiary); /* Highlight today slightly */
}

.calendar-day-number {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 8px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.calendar-day.today .calendar-day-number {
  background-color: var(--color-primary);
  color: white;
}

.calendar-day.other-month {
  background: var(--color-bg-secondary);
  color: var(--color-text-tertiary);
  opacity: 0.6;
  border-color: transparent;
  pointer-events: none; /* Optional: disable clicks on other months */
}

.calendar-day.other-month .calendar-day-number {
  color: var(--color-text-tertiary);
  background-color: transparent;
}

.calendar-habits {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: center;
  width: 100%;
}

.calendar-habit-indicator {
  width: var(--ht-cal-indicator-size);
  height: var(--ht-cal-indicator-size);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--ht-cal-indicator-font);
  transition: transform var(--transition-fast);
  color: var(--color-text-secondary); /* Default icon color */
}

.calendar-habit-indicator:hover {
  transform: scale(1.2);
  z-index: 1;
}

.calendar-habit-indicator.completed {
  color: white;
}

.calendar-habit-indicator.empty {
  background: var(--color-bg-tertiary);
  opacity: 0.3;
}

/* ==========================================
   STATISTICS VIEW
   ========================================== */

.habit-stats-filters {
  display: flex;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-5);
  padding: var(--spacing-4);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}

.habit-stats-filters .filter-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.habit-stats-filters .filter-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.habit-stats-filters .filter-select {
  padding: var(--spacing-2) var(--spacing-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-base);
}

.habit-stats-filters .filter-select:hover {
  border-color: var(--color-text-tertiary);
}

.habit-stats-filters .filter-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(24, 24, 27, 0.1);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
}

.habit-stats-section {
  margin-bottom: var(--spacing-6);
}

.habit-stats-section-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-4) 0;
}

.habit-stats-section-title svg {
  width: 18px;
  height: 18px;
  color: var(--color-text-tertiary);
}

/* Activity Heatmap */
.habit-activity-heatmap {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  overflow-x: auto;
  
  /* Heatmap Configuration Variables */
  --hm-cell-size: 18px;
  --hm-gap: 3px;
  --hm-radius: 3px;
}

.heatmap-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto 1fr;
  gap: var(--spacing-2) var(--spacing-3);
  min-width: 0;
  align-items: start;
}

/* Month Labels Row - positioned above cells */
.heatmap-months {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  margin-bottom: 0;
  padding-left: 0;
  width: 100%;
}

.heatmap-month {
  flex: 1;
  max-width: 32px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: center;
  height: 20px;
  line-height: 20px;
  white-space: nowrap;
  overflow: visible;
  pointer-events: none;
}

/* Day Labels Column */
.heatmap-days-label {
  grid-column: 1;
  grid-row: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  padding-right: 8px;
}

.heatmap-day-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
  min-height: var(--hm-cell-size);
  line-height: var(--hm-cell-size);
  min-width: 36px;
  text-align: right;
  padding-right: 8px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

/* Cells Grid */
.heatmap-cells {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  width: 100%;
  justify-content: flex-start;
  gap: 0;
}

.heatmap-week {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  position: relative;
  max-width: 32px;
  gap: 3px;
}

/* Month Separator Line */
.heatmap-week[data-month-start="1"]::before {
  content: "";
  position: absolute;
  left: -2px;
  top: -4px;
  bottom: -4px;
  width: 1px;
  background: var(--color-border);
  opacity: 0.7;
}

.heatmap-cell {
  width: 20px;
  height: 20px;
  background: var(--color-bg-secondary);
  border-radius: var(--hm-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

/* Placeholder cells for non-existent days (before range start) - invisible but maintain space */
.heatmap-cell-placeholder {
  visibility: hidden;
  pointer-events: none;
}

/* Future cells (after today) - visible with distinct styling */
.heatmap-cell-future {
  background: rgba(200, 200, 200, 0.15) !important;
  border: 1.5px dashed #aaa !important;
  opacity: 1 !important;
}

.heatmap-cell-future:hover {
  background: rgba(200, 200, 200, 0.3) !important;
  border-color: #888 !important;
}

.heatmap-cell:hover {
  transform: scale(1.3);
  z-index: 2;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.15);
}

/* Level colors - más visibles */
.heatmap-cell[data-level="0"] {
  background: #e8e8e8;
}

.heatmap-cell[data-level="1"] {
  background: #9be9a8;
}

.heatmap-cell[data-level="2"] {
  background: #40c463;
}

.heatmap-cell[data-level="3"] {
  background: #30a14e;
}

.heatmap-cell[data-level="4"] {
  background: #216e39;
}

.heatmap-legend {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-top: var(--spacing-4);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.heatmap-hint {
  margin-top: var(--spacing-3);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  text-align: center;
}

.heatmap-legend-label {
  margin-right: var(--spacing-2);
}

.heatmap-legend-scale {
  display: flex;
  gap: 3px;
}

.heatmap-legend-cell {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

/* Progress Chart */
.habit-progress-chart {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  min-height: 250px;
  position: relative;
}

.progress-chart-canvas {
  width: 100%;
  height: 200px;
  display: flex;
  align-items: flex-end;
  gap: var(--spacing-2);
  padding: var(--spacing-3) 0;
  position: relative;
}

.progress-chart-bar {
  flex: 1;
  background: linear-gradient(to top, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-base) var(--radius-base) 0 0;
  min-height: 4px;
  position: relative;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.progress-chart-bar:hover {
  opacity: 0.8;
  transform: scaleY(1.05);
}

.progress-chart-bar-label {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  white-space: nowrap;
}

.progress-chart-bar-value {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  padding: 2px 6px;
  border-radius: var(--radius-base);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.progress-chart-bar:hover .progress-chart-bar-value {
  opacity: 1;
}

.progress-chart-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

.stat-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
}

.stat-card-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.stat-card-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-base);
  font-size: 20px;
}

.stat-card-title {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.stat-card-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0;
}

.stat-card-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--spacing-1);
}

.habit-stats-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.habit-stat-item {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-4);
}

.habit-stat-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.habit-stat-info {
  flex: 1;
}

.habit-stat-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-1) 0;
}

.habit-stat-frequency {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.habit-stat-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: var(--spacing-3);
}

.habit-stat-metric {
  text-align: center;
  padding: var(--spacing-2);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-base);
}

.habit-stat-metric-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.habit-stat-metric-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--spacing-1);
}

/* ==========================================
   HABIT FORM MODAL
   ========================================== */

.habit-form-modal .modal-container {
  max-width: 500px;
}

.habit-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.habit-color-picker {
  display: flex;
  gap: var(--spacing-2);
  flex-wrap: wrap;
  padding: var(--spacing-2);
  background: var(--color-bg-primary);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
}

.habit-color-option {
  width: 36px;
  height: 36px;
  border: 2px solid transparent;
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.habit-color-option:hover {
  transform: scale(1.1);
}

.habit-color-option.selected {
  border-color: var(--color-text-primary);
  box-shadow: 0 0 0 2px var(--color-bg-primary), 0 0 0 4px var(--color-text-primary);
}

.habit-icon-picker {
  display: flex;
  gap: var(--spacing-2);
  flex-wrap: wrap;
  max-height: 280px;
  overflow-y: auto;
  padding: var(--spacing-2);
  background: var(--color-bg-primary);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
}

/* ==========================================
   CALENDAR SECTION IN HABITS TAB - ULTRA COMPACT
   ========================================== */

/* Ultra-specific selectors to override old calendar styles */
#habitTrackerModal .tab-habits .calendar-section {
  margin-top: var(--spacing-2);
  padding-top: var(--spacing-2);
  border-top: 1px solid var(--color-border);
}

#habitTrackerModal .tab-habits .calendar-section .calendar-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-1);
  margin-bottom: var(--spacing-2);
}

#habitTrackerModal .tab-habits .calendar-section .calendar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

#habitTrackerModal .tab-habits .calendar-section .calendar-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--transition-base);
  color: var(--color-text-primary);
  font-size: 14px;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-nav-btn:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-text-secondary);
}

#habitTrackerModal .tab-habits .calendar-section .calendar-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  min-width: 120px;
  text-align: center;
  margin: 0;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  padding: var(--spacing-2);
  border: 1px solid var(--color-border);
}

#habitTrackerModal .tab-habits .calendar-section .calendar-day-header {
  text-align: center;
  padding: 2px;
  font-size: 10px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-day {
  aspect-ratio: 1 !important;
  background: var(--color-bg-primary) !important;
  border-radius: 4px !important;
  padding: 3px !important;
  display: flex !important;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 1px solid transparent;
  min-height: 0 !important;
  height: auto !important;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-day:hover {
  border-color: var(--color-text-secondary) !important;
  background: var(--color-bg-tertiary) !important;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-day.other-month {
  opacity: 0.3 !important;
  pointer-events: none;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-day.today {
  border-color: var(--color-primary) !important;
  background: var(--color-primary-bg) !important;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-day-number {
  font-size: 12px !important;
  font-weight: 600 !important;
  color: var(--color-text-primary) !important;
  margin-bottom: 1px !important;
  line-height: 1 !important;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-habits {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  justify-content: center;
  align-items: center;
  flex: 1;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-habit-indicator {
  width: 12px !important;
  height: 12px !important;
  border-radius: 50% !important;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  transition: all var(--transition-base);
  cursor: pointer;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-habit-indicator.empty {
  background: var(--color-bg-tertiary);
  border: 1px dashed var(--color-border);
  color: transparent;
}

#habitTrackerModal .tab-habits .calendar-section .calendar-habit-indicator.completed {
  background: var(--color-success);
  color: white;
}

}

.habit-icon-option {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  border: 2px solid transparent;
  border-radius: var(--radius-base);
  background: var(--color-bg-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  flex-shrink: 0;
  position: relative;
}

.habit-icon-option:hover {
  background: var(--color-bg-tertiary);
  transform: scale(1.05);
}

.habit-icon-option.selected {
  border-color: var(--color-primary);
  background: var(--color-bg-tertiary);
}

/* Tooltip personalizado para iconos */
.habit-icon-option::after {
  content: attr(title);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg-tooltip, rgba(0, 0, 0, 0.9));
  color: var(--color-text-tooltip, #fff);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 1000;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.habit-icon-option:hover::after {
  opacity: 1;
}

/* Flecha del tooltip */
.habit-icon-option::before {
  content: '';
  position: absolute;
  bottom: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-bg-tooltip, rgba(0, 0, 0, 0.9));
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 1000;
}

.habit-icon-option:hover::before {
  opacity: 1;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

/* Ventanas con poca altura: reducir tamaño del calendario para evitar scroll */
@media (max-height: 900px) {
  .calendar-section {
    /* Ajuste fino adicional sobre clamp() */
    --ht-cal-day-height: clamp(54px, 8.2vh, 84px);
  }
}

@media (max-height: 800px) {
  .calendar-section {
    --ht-cal-day-height: clamp(52px, 7.6vh, 74px);
  }

  .habitracker-header {
    padding: var(--spacing-4) var(--spacing-5);
  }

  .habitracker-tabs-nav {
    padding: var(--spacing-3) var(--spacing-5);
  }

  .habitracker-body {
    padding: var(--spacing-3) var(--spacing-5);
  }

  .habits-toolbar {
    margin-bottom: var(--spacing-3);
  }

  .habits-list {
    gap: var(--spacing-3);
    padding-bottom: 8px;
  }

  .habit-card {
    padding: var(--spacing-4);
  }
}

@media (max-height: 720px) {
  .calendar-section {
    --ht-cal-day-height: clamp(48px, 7.0vh, 66px);
  }

  .habitracker-header {
    padding: var(--spacing-3) var(--spacing-4);
  }

  .habitracker-tabs-nav {
    padding: var(--spacing-2) var(--spacing-4);
  }

  .habitracker-body {
    padding: var(--spacing-3) var(--spacing-4);
  }
}

/* Tablet and smaller laptops */
@media (max-width: 1024px) {
  .calendar-section {
    --ht-cal-gap: 10px;
    --ht-cal-day-height: 80px;
    --ht-cal-day-padding: 9px;
    --ht-cal-indicator-size: 20px;
    --ht-cal-indicator-font: 10px;
  }

  .calendar-day {
    border-radius: 12px;
  }
}

/* Mobile Devices */
@media (max-width: 768px) {
  .habitracker-content {
    padding: var(--spacing-3);
  }

  .habitracker-header {
    margin-bottom: var(--spacing-4);
  }

  .habits-list {
    grid-template-columns: 1fr;
    gap: var(--spacing-3);
  }
  
  .habit-card {
    padding: var(--spacing-4);
  }

  /* Calendar Improvements for Mobile */
  .calendar-section {
    margin-top: var(--spacing-4);
    overflow-x: auto; /* Allow horizontal scroll if needed */
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--spacing-3); /* Space for scrollbar */
    --ht-cal-gap: 8px;
    --ht-cal-day-height: 72px;
    --ht-cal-day-padding: 8px;
    --ht-cal-indicator-size: 18px;
    --ht-cal-indicator-font: 9px;
  }

  .calendar-header {
    flex-direction: column;
    gap: var(--spacing-3);
  }

  .calendar-nav {
    width: 100%;
    justify-content: space-between;
  }

  .calendar-grid {
    /* En móviles, aseguramos un ancho mínimo para que no se deforme */
    min-width: 700px; 
  }

  .habitracker-tabs-nav {
    overflow-x: auto;
    flex-wrap: nowrap;
    white-space: nowrap;
    padding-bottom: var(--spacing-1);
    margin-bottom: var(--spacing-4);
    gap: var(--spacing-2);
    justify-content: flex-start;
  }
  
  .habitracker-tab {
    flex-shrink: 0;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .habit-stats-filters {
    flex-direction: column;
    align-items: stretch;
  }
  
  .habit-stats-filters .filter-group {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .habit-stats-filters .filter-select {
    width: 100%;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .habitracker-title {
    font-size: 1.5rem;
  }
  
  .habit-stats-section-title {
    font-size: 1.1rem;
  }
}

/* ==========================================
   ANIMATIONS
   ========================================== */

@keyframes habitFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.habit-card,
.habit-stat-item {
  animation: habitFadeIn 0.3s ease;
}

/* Calendar Day Completion Animation */
@keyframes completionPulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

.calendar-habit-indicator.completed {
  animation: completionPulse 0.3s ease;
}

/* Streak Fire Animation */
@keyframes fireGlow {
  0%, 100% {
    text-shadow: 0 0 5px rgba(255, 107, 53, 0.5);
  }
  50% {
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.8);
  }
}

.habit-streak-fire {
  animation: fireGlow 2s ease-in-out infinite;
}