/* ==========================================================================
   SYNCHRONY DESIGN SYSTEM - CORE CSS VARIABLES & STYLE GUIDE
   ========================================================================== */

:root {
  /* Color Palette */
  --color-background: #f8f9ff;
  --color-on-background: #0b1c30;
  
  --color-surface: #ffffff;
  --color-surface-dim: #cbdbf5;
  --color-surface-bright: #f8f9ff;
  --color-surface-container-lowest: #ffffff;
  --color-surface-container-low: #eff4ff;
  --color-surface-container: #e5eeff;
  --color-surface-container-high: #dce9ff;
  --color-surface-container-highest: #d3e4fe;
  
  --color-on-surface: #0b1c30;
  --color-on-surface-variant: #45464d;
  --color-outline: #76777d;
  --color-outline-variant: #c6c6cd;
  --color-surface-tint: #565e74;
  
  --color-primary: #0f172a;           /* Deep Slate Navy */
  --color-on-primary: #ffffff;
  --color-primary-container: #131b2e;
  --color-on-primary-container: #7c839b;
  --color-inverse-primary: #bec6e0;
  
  --color-secondary: #3b82f6;         /* Corporate Blue */
  --color-on-secondary: #ffffff;
  --color-secondary-container: #2170e4;
  --color-on-secondary-container: #fefcff;
  
  --color-tertiary: #8b5cf6;          /* Violet Accent */
  --color-on-tertiary: #ffffff;
  --color-tertiary-container: #23005c;
  --color-on-tertiary-container: #9466ff;
  
  --color-error: #ba1a1a;
  --color-on-error: #ffffff;
  --color-error-container: #ffdad6;
  --color-on-error-container: #93000a;
  
  --color-success: #10b981;          /* Emerald Green */
  --color-on-success: #ffffff;
  
  --color-neutral: #64748b;          /* Balanced Gray */
  --color-border-grid: #e2e8f0;      /* Grid line border (#f1f5f9 equivalent or slightly darker for contrast) */
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Spacing System */
  --spacing-base: 4px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --grid-margin: 24px;
  --grid-gutter: 16px;

  /* Shapes & Corner Rounding */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Elevations */
  --elevation-0: none;
  --elevation-1: 0 1px 3px 0 rgba(0, 0, 0, 0.08), 0 1px 2px -1px rgba(0, 0, 0, 0.08);
  --elevation-2: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.08);
  --elevation-3: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.1);
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   BASE & RESET STYLES
   ========================================================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-background);
  color: var(--color-on-background);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  font-weight: 600;
}

/* ==========================================================================
   APP HEADER
   ========================================================================== */

.app-header {
  height: 72px;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-outline-variant);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--grid-margin);
  box-shadow: var(--elevation-1);
  z-index: 10;
  flex-shrink: 0;
}

/* Brand and Logo */
.header-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-surface-container);
  color: var(--color-secondary);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-surface-container-high);
}

.brand-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.brand-subtitle {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-neutral);
  font-weight: 600;
  display: block;
}

/* Month Navigation Controls */
.calendar-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-arrows {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background-color: var(--color-surface-container-low);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-outline-variant);
}

.btn-nav {
  background: transparent;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-nav:hover {
  background-color: var(--color-surface-container-high);
  color: var(--color-secondary);
}

.calendar-month-title {
  font-size: 18px;
  font-weight: 600;
  min-width: 140px;
  text-align: center;
  user-select: none;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 500;
  height: 40px;
  padding: 0 var(--spacing-md);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  gap: var(--spacing-xs);
  user-select: none;
}

.btn-icon {
  flex-shrink: 0;
}

.btn-primary {
  background-color: var(--color-secondary);
  color: var(--color-on-secondary);
}

.btn-primary:hover {
  background-color: #2563eb; /* Slightly darker secondary */
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.2);
}

.btn-primary:active {
  background-color: #1d4ed8;
}

.btn-secondary {
  background-color: var(--color-surface);
  border-color: var(--color-outline-variant);
  color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-surface-container-low);
  border-color: var(--color-neutral);
}

.btn-danger {
  background-color: var(--color-error);
  color: var(--color-on-error);
}

.btn-danger:hover {
  background-color: #b91c1c;
}

.btn-sm {
  height: 32px;
  font-size: 12px;
  padding: 0 var(--spacing-sm);
}

.btn-icon-only {
  background: transparent;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-neutral);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-icon-only:hover {
  background-color: var(--color-surface-container);
  color: var(--color-primary);
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   APP WORKSPACE LAYOUT
   ========================================================================== */

.app-workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* Sidebar Styling */
.app-sidebar {
  width: 300px;
  background-color: var(--color-surface);
  border-right: 1px solid var(--color-outline-variant);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: var(--spacing-lg);
  gap: var(--spacing-xl);
  flex-shrink: 0;
}

.sidebar-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-neutral);
}

/* ==========================================================================
   COLLABORATORS LIST & EDIT/DELETE
   ========================================================================== */

.collaborators-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.collaborator-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-surface-container-low);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.collaborator-item:hover {
  background-color: var(--color-surface-container);
  border-color: var(--color-surface-dim);
  box-shadow: var(--elevation-1);
}

.collaborator-info-wrapper {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
  overflow: hidden;
  cursor: pointer;
}

.collaborator-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: #ffffff;
  border: 2px solid #ffffff;
  box-shadow: var(--elevation-1);
  flex-shrink: 0;
  text-transform: uppercase;
}

.collaborator-meta {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.collaborator-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.collaborator-role {
  font-size: 11px;
  color: var(--color-neutral);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.collaborator-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: var(--transition-fast);
}

.collaborator-item:hover .collaborator-actions {
  opacity: 1;
}

.collaborator-actions .btn-icon-only {
  width: 24px;
  height: 24px;
}

/* Checkbox Toggle Filter */
.collaborator-checkbox-toggle {
  margin-right: var(--spacing-xs);
  cursor: pointer;
}

/* ==========================================================================
   FILTER CHECKBOXES & LEGEND
   ========================================================================== */

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.filter-checkbox-container {
  display: flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
  font-size: 14px;
  color: var(--color-primary);
}

.filter-checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.custom-checkbox {
  height: 18px;
  width: 18px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-outline-variant);
  margin-right: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  background-color: var(--color-surface);
}

.filter-checkbox-container:hover input ~ .custom-checkbox {
  border-color: var(--color-neutral);
}

.filter-checkbox-container input:checked ~ .custom-checkbox {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.filter-checkbox-container input:checked ~ .custom-checkbox::after {
  content: "";
  display: block;
  width: 4px;
  height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) translate(-1px, -1px);
}

/* Category Checkbox Background Accents */
.cb-work { border-color: #3b82f6; }
.filter-checkbox-container input:checked ~ .cb-work { background-color: #3b82f6; border-color: #3b82f6; }

.cb-meeting { border-color: #8b5cf6; }
.filter-checkbox-container input:checked ~ .cb-meeting { background-color: #8b5cf6; border-color: #8b5cf6; }

.cb-vacation { border-color: #10b981; }
.filter-checkbox-container input:checked ~ .cb-vacation { background-color: #10b981; border-color: #10b981; }

.cb-other { border-color: #f59e0b; }
.filter-checkbox-container input:checked ~ .cb-other { background-color: #f59e0b; border-color: #f59e0b; }

.filter-label-text {
  font-weight: 500;
}

/* Legend Styling */
.legend-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 13px;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
}

.status-scheduled { background-color: var(--color-neutral); }
.status-confirmed { background-color: var(--color-success); }
.status-cancelled { background-color: var(--color-error); }

.legend-text {
  color: var(--color-on-surface-variant);
  font-weight: 500;
}

/* Skeleton Placeholder */
.skeleton-placeholder {
  background: linear-gradient(90deg, #eff4ff 25%, #e5eeff 50%, #eff4ff 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ==========================================================================
   CALENDAR LAYOUT & GRID
   ========================================================================== */

.calendar-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
  overflow: hidden;
  height: 100%;
}

/* Calendar Week Header */
.calendar-week-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  border-bottom: 1px solid var(--color-border-grid);
  background-color: var(--color-surface-container-low);
  flex-shrink: 0;
}

.weekday-name {
  padding: var(--spacing-sm) 0;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-neutral);
  border-right: 1px solid var(--color-border-grid);
}

.weekday-name:last-child {
  border-right: none;
}

/* Days Grid */
.calendar-days-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  grid-template-rows: repeat(6, 1fr); /* 6 rows to always accommodate any month padding */
  flex-grow: 1;
  background-color: var(--color-border-grid);
  gap: 1px; /* Creates clean grid lines */
  overflow-y: auto;
}

/* Individual Day Cell */
.calendar-day-cell {
  background-color: var(--color-surface);
  padding: var(--spacing-xs);
  display: flex;
  flex-direction: column;
  position: relative;
  min-height: 100px;
  overflow: hidden;
  transition: background-color var(--transition-fast);
}

/* Hover Day Cell Action */
.calendar-day-cell:hover {
  background-color: var(--color-surface-container-low);
}

.day-number-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xs);
  flex-shrink: 0;
}

.day-number {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
}

/* Other Month Days styling */
.day-outside {
  background-color: #fafbfc;
}

.day-outside .day-number {
  color: var(--color-outline);
  font-weight: 400;
}

/* Today Cell Highlight */
.day-today {
  background-color: #eff6ff; /* soft secondary container */
}

.day-today .day-number {
  background-color: var(--color-secondary);
  color: #ffffff;
}

/* Day Quick-Add Button */
.btn-day-add {
  opacity: 0;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-container-high);
  color: var(--color-secondary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.calendar-day-cell:hover .btn-day-add {
  opacity: 1;
}

.btn-day-add:hover {
  background-color: var(--color-secondary);
  color: #ffffff;
}

/* Day Schedules Container */
.day-schedules {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  padding-bottom: 2px;
}

/* Hide scrollbars for dense look */
.day-schedules::-webkit-scrollbar {
  width: 4px;
}
.day-schedules::-webkit-scrollbar-thumb {
  background-color: var(--color-outline-variant);
  border-radius: var(--radius-full);
}

/* ==========================================================================
   EVENT/SCHEDULE CARDS
   ========================================================================== */

.schedule-card {
  position: relative;
  background-color: var(--color-surface);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 12px;
  cursor: pointer;
  box-shadow: var(--elevation-1);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  overflow: hidden;
  user-select: none;
}

/* Left Accent Indicator */
.schedule-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--collab-color, var(--color-neutral));
}

.schedule-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--elevation-2);
  border-color: var(--color-outline);
}

.schedule-card:active {
  transform: translateY(0);
}

.schedule-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xs);
}

.schedule-title {
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.schedule-time {
  font-size: 10px;
  font-weight: 500;
  color: var(--color-neutral);
  white-space: nowrap;
}

.schedule-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2px;
}

.schedule-collaborator-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 10px;
  color: var(--color-neutral);
  font-weight: 500;
}

.schedule-avatar-micro {
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 7px;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
}

/* Category specific background tints to visually differentiate cards */
.schedule-card.cat-work {
  background-color: #f0f7ff;
}
.schedule-card.cat-meeting {
  background-color: #f5f3ff;
}
.schedule-card.cat-vacation {
  background-color: #ecfdf5;
}
.schedule-card.cat-other {
  background-color: #fffbeb;
}

/* Status overlay line through for cancelled events */
.schedule-card.status-cancelled {
  opacity: 0.6;
}
.schedule-card.status-cancelled .schedule-title {
  text-decoration: line-through;
}

/* Multi-day schedule card indicators */
.schedule-card.is-multiday-start {
  border-bottom-right-radius: 0;
  border-top-right-radius: 0;
  border-right: none;
}
.schedule-card.is-multiday-middle {
  border-radius: 0;
  border-left: none;
  border-right: none;
}
.schedule-card.is-multiday-end {
  border-bottom-left-radius: 0;
  border-top-left-radius: 0;
  border-left: none;
}

/* ==========================================================================
   MODAL DIALOGS (Level 3 Elevation)
   ========================================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background-color: var(--color-surface);
  width: 100%;
  max-width: 500px;
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-3);
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
  border: 1px solid var(--color-outline-variant);
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-header {
  padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-md);
  border-bottom: 1px solid var(--color-outline-variant);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--color-neutral);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background-color: var(--color-surface-container-low);
  color: var(--color-primary);
}

.modal-form {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-height: calc(100vh - 150px);
  overflow-y: auto;
}

/* Form Controls */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.required {
  color: var(--color-error);
}

.form-control {
  font-family: var(--font-family);
  font-size: 14px;
  padding: var(--spacing-sm);
  background-color: #f8fafc; /* Subtle grey background */
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
  width: 100%;
}

.form-control:focus {
  background-color: var(--color-surface);
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 36px;
  cursor: pointer;
}

textarea.form-control {
  resize: vertical;
}

/* Custom Color Picker Grid */
.color-picker-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: var(--spacing-sm);
}

.color-picker-item {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-full);
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid transparent;
  transition: transform var(--transition-fast);
}

.color-picker-item:hover {
  transform: scale(1.1);
}

.color-picker-item input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.color-picker-checkmark {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: #ffffff;
  display: none;
}

.color-picker-item input:checked ~ .color-picker-checkmark {
  display: block;
}

.color-picker-item:has(input:checked) {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-surface), 0 0 0 4px var(--color-outline);
}

/* Modal Footer */
.modal-footer {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-outline-variant);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.footer-right-buttons {
  display: flex;
  gap: var(--spacing-sm);
  margin-left: auto;
}

/* ==========================================================================
   PRINT STYLES (@media print)
   ========================================================================== */

@media print {
  /* Set layout for landscape printing */
  @page {
    size: landscape;
    margin: 1.5cm;
  }

  body {
    background-color: #ffffff !important;
    color: #000000 !important;
    height: auto !important;
    overflow: visible !important;
  }

  /* Hide header, sidebar, action controls, and modal overlays */
  .no-print,
  .app-header,
  .app-sidebar,
  .modal-overlay,
  .btn-day-add {
    display: none !important;
  }

  /* Expand calendar to occupy the full print page width/height */
  .app-workspace {
    display: block !important;
    overflow: visible !important;
    height: auto !important;
  }

  .calendar-container {
    display: flex !important;
    flex-direction: column !important;
    border: 1px solid #000000 !important;
    width: 100% !important;
    height: auto !important;
    overflow: visible !important;
    background-color: #ffffff !important;
  }

  .calendar-week-header {
    background-color: #f1f5f9 !important;
    border-bottom: 2px solid #000000 !important;
  }

  .weekday-name {
    color: #000000 !important;
    border-right: 1px solid #000000 !important;
    padding: var(--spacing-xs) 0 !important;
    font-size: 12px !important;
  }

  .calendar-days-grid {
    display: grid !important;
    grid-template-columns: repeat(7, 1fr) !important;
    /* Grid cells will flow naturally based on printed content */
    grid-template-rows: repeat(6, minmax(100px, auto)) !important;
    background-color: #000000 !important; /* Thick grid borders for print */
    gap: 1px !important;
    overflow: visible !important;
  }

  .calendar-day-cell {
    background-color: #ffffff !important;
    border: none !important;
    min-height: 110px !important;
    padding: 6px !important;
    overflow: visible !important;
  }

  .day-outside {
    background-color: #f8fafc !important;
  }

  .day-today {
    background-color: #ffffff !important;
    border: 2px solid var(--color-secondary) !important;
  }

  .day-today .day-number {
    background-color: #000000 !important;
    color: #ffffff !important;
  }

  .day-number {
    font-size: 13px !important;
    color: #000000 !important;
  }

  .day-schedules {
    overflow: visible !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 6px !important;
  }

  /* High contrast event cards for print readability */
  .schedule-card {
    border: 1px solid #000000 !important;
    box-shadow: none !important;
    background-color: #ffffff !important;
    color: #000000 !important;
    padding: 2px 6px !important;
    page-break-inside: avoid;
  }

  .schedule-card::before {
    width: 6px !important;
    /* Maintain border background color in print */
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .schedule-title {
    color: #000000 !important;
    font-size: 11px !important;
  }

  .schedule-time {
    color: #000000 !important;
    font-size: 10px !important;
  }

  .schedule-collaborator-tag {
    color: #000000 !important;
  }

  .schedule-avatar-micro {
    display: none !important; /* hide avatar in print to save black ink and space */
  }

  /* Add printable title at top of the page */
  body::before {
    content: "Stitch Team Schedule - " attr(data-month);
    display: block;
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 15px;
    color: #000000;
  }
}