/**
 * CALENDAR STYLES
 * Dark theme matching master.css
 */

.calendar-layout {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-lg);
  padding: var(--pad-lg);
  max-width: 1400px;
  margin: 0 auto;
  min-height: calc(100vh - 80px);
  width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
  min-width: 0;
}

.calendar-main {
  background: var(--bg-light, #1E293B);
  border-radius: 12px;
  padding: var(--pad-lg);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  border: 1px solid var(--border, #334155);
  min-width: 0;
  overflow-x: hidden;
}

.calendar-month-view {
  min-width: 0;
  overflow-x: hidden;
}

/* Month Header */
.calendar-month-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  gap: var(--space-md);
  min-width: 0;
  flex-wrap: wrap;
}

.calendar-month-header h2 {
  flex: 1;
  text-align: center;
  margin: 0;
  font-size: 1.5rem;
  color: var(--text, #F1F5F9);
  min-width: 0;
  word-break: break-word;
}

.btn-icon {
  background: var(--bg-main, #0F172A);
  border: 1px solid var(--border, #334155);
  color: var(--text, #F1F5F9);
  border-radius: 8px;
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-size: 1.25rem;
  transition: all 0.2s;
}

.btn-icon:hover {
  background: var(--secondary, #1E293B);
  border-color: var(--primary, #3b82f6);
}

/* Weekday Headers */
.calendar-weekday-row {
  display: grid !important;
  grid-template-columns: repeat(7, 1fr) !important;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  min-width: 0;
}

.calendar-weekday-header {
  text-align: center;
  font-weight: bold;
  color: var(--text-light, #94A3B8);
  padding: var(--pad-sm) 0;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Calendar Grid */
.calendar-grid {
  display: grid !important;
  grid-template-columns: repeat(7, 1fr) !important;
  gap: var(--space-sm);
  min-width: 0;
}

.calendar-cell {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 2px solid var(--border, #334155);
  background: var(--bg-main, #0F172A);
  color: var(--text, #F1F5F9);
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  padding: var(--space-sm);
  box-sizing: border-box;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
}

.calendar-cell.empty {
  border: none;
  cursor: default;
  background: transparent;
}

.calendar-cell:not(.empty):hover {
  background: var(--secondary, #1E293B);
  border-color: var(--primary, #3b82f6);
  transform: scale(1.05);
}

.calendar-cell.selected {
  background: var(--primary, #3b82f6);
  color: white;
  border-color: var(--primary, #3b82f6);
}

.calendar-cell.today {
  border-color: var(--primary, #3b82f6);
  border-width: 3px;
  font-weight: bold;
}

.calendar-cell.has-completed {
  background: #15803d;
}

.calendar-cell.has-planned {
  background: #b45309;
}

.calendar-cell.has-completed.has-planned {
  background: linear-gradient(135deg, #15803d 50%, #b45309 50%);
}

.calendar-cell.selected.has-completed,
.calendar-cell.selected.has-planned,
.calendar-cell.selected.has-completed.has-planned {
  background: var(--primary, #3b82f6);
}

.cell-day-number {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: inherit;
}

.cell-indicators {
  display: flex;
  gap: var(--space-xs);
  font-size: 0.625rem;
  flex-wrap: wrap;
  justify-content: center;
}

.cell-indicators .indicator {
  padding: var(--space-xs) calc(var(--space-xs) * 1.5);
  border-radius: 4px;
  white-space: nowrap;
  font-weight: 600;
}

.cell-indicators .indicator.completed {
  background: #22c55e;
  color: white;
}

.cell-indicators .indicator.planned {
  background: #f59e0b;
  color: white;
}

.calendar-cell.selected .cell-indicators .indicator {
  background: rgba(255,255,255,0.3);
  color: white;
}

/* Responsive - Mobile */
@media (max-width: 768px) {
  .calendar-layout {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--pad-md) calc(var(--pad-md) * 0.75);
    min-width: 0;
  }

  .calendar-main {
    padding: var(--pad-md) calc(var(--pad-md) * 0.75);
    border-radius: 10px;
    min-width: 0;
  }

  .calendar-month-header {
    margin-bottom: var(--space-md);
  }

  .calendar-month-header h2 {
    font-size: 1.25rem;
  }

  .calendar-weekday-header {
    font-size: 0.75rem;
    padding: var(--space-sm) 0;
    min-width: 0;
  }

  .calendar-weekday-row {
    gap: calc(var(--space-sm) * 0.75);
    min-width: 0;
  }

  .calendar-grid {
    gap: calc(var(--space-sm) * 0.75);
    min-width: 0;
  }

  .calendar-cell {
    padding: var(--space-xs);
    border-radius: 6px;
    min-width: 0;
  }

  .cell-day-number {
    font-size: 0.875rem;
  }

  .cell-indicators {
    font-size: 0.5rem;
  }

  .calendar-detail-panel {
    position: sticky;
    top: 0;
    z-index: 10;
  }
}

@media (max-width: 480px) {
  .calendar-layout {
    padding: calc(var(--space-md) * 0.75) calc(var(--space-sm) * 0.5);
    gap: calc(var(--space-md) * 0.75);
    min-width: 0;
  }

  .calendar-main {
    padding: calc(var(--space-md) * 0.75) calc(var(--space-sm) * 0.5);
    min-width: 0;
  }

  .calendar-month-header {
    flex-wrap: wrap;
    gap: calc(var(--space-md) * 0.75);
    margin-bottom: calc(var(--space-md) * 0.75);
  }

  .calendar-month-header h2 {
    font-size: 1.125rem;
    width: 100%;
  }

  .btn-icon {
    padding: calc(var(--space-sm) * 0.75) calc(var(--space-md) * 0.75);
    font-size: 1rem;
  }

  .calendar-weekday-header {
    font-size: 0.625rem;
    padding: calc(var(--space-sm) * 0.75) 0;
    min-width: 0;
  }

  .calendar-cell {
    padding: var(--space-xs);
    border: 1px solid var(--border, #334155);
    min-width: 0;
  }

  .cell-day-number {
    font-size: 0.75rem;
  }

  .cell-indicators {
    font-size: 0.425rem;
  }
}

@media (max-width: 360px) {
  .calendar-layout {
    padding: var(--space-sm);
    gap: var(--space-sm);
    min-width: 0;
  }

  .calendar-main {
    padding: var(--space-sm);
    min-width: 0;
  }

  .calendar-month-header {
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
  }

  .calendar-month-header h2 {
    font-size: 1rem;
  }

  .btn-icon {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.875rem;
  }

  .calendar-weekday-header {
    font-size: 0.55rem;
    padding: var(--space-xs) 0;
    min-width: 0;
  }

  .calendar-weekday-row {
    gap: var(--space-xs);
    min-width: 0;
  }

  .calendar-grid {
    gap: var(--space-xs);
    min-width: 0;
  }

  .calendar-cell {
    padding: 0;
    border: 1px solid var(--border, #334155);
    border-radius: 4px;
    min-width: 0;
  }

  .cell-day-number {
    font-size: 0.65rem;
  }

  .cell-indicators {
    font-size: 0.375rem;
    gap: var(--space-xs);
  }

  .cell-indicators .indicator {
    padding: var(--space-xs) calc(var(--space-xs) * 0.5);
  }
}