/* ===================================
   CSS Custom Properties (Variables)
   =================================== */
:root {
  /* Colors - Light Theme */
  --primary-color: #2196F3;
  --primary-dark: #1976D2;
  --primary-light: #BBDEFB;
  --secondary-color: #4CAF50;
  --accent-color: #FF9800;
  
  --holiday-color: #F44336;
  --vacation-color: #2196F3;
  --custom-vacation-color: #9C27B0;
  --weekend-color: #E0E0E0;
  --bridge-color: #FFC107;
  --working-day-color: #FFFFFF;
  
  --text-primary: #212121;
  --text-secondary: #757575;
  --text-disabled: #BDBDBD;
  
  --background: #FAFAFA;
  --surface: #FFFFFF;
  --surface-hover: #F5F5F5;
  --border-color: #E0E0E0;
  --shadow-color: rgba(0, 0, 0, 0.1);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-xxl: 1.5rem;
  --font-size-xxxl: 2rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 var(--shadow-color);
  --shadow-md: 0 4px 6px -1px var(--shadow-color);
  --shadow-lg: 0 10px 15px -3px var(--shadow-color);
  --shadow-xl: 0 20px 25px -5px var(--shadow-color);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-modal: 2000;
  --z-toast: 3000;
  --z-loading: 4000;
}

/* Dark Theme */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0B0;
    --text-disabled: #666666;
    
    --background: #121212;
    --surface: #1E1E1E;
    --surface-hover: #2A2A2A;
    --border-color: #333333;
    --shadow-color: rgba(0, 0, 0, 0.5);
    
    --working-day-color: #2A2A2A;
    --weekend-color: #333333;
  }
}
/* Ensure light mode has proper contrast */
:root:not([data-theme="dark"]) {
  --text-primary: #212121;
  --text-secondary: #757575;
  --background: #FAFAFA;
  --surface: #FFFFFF;
  --border-color: #E0E0E0;
}

/* Light mode: white text on dark backgrounds */
:root:not([data-theme="dark"]) .day-cell.holiday,
:root:not([data-theme="dark"]) .day-cell.vacation,
:root:not([data-theme="dark"]) .day-cell.custom-vacation {
  color: #FFFFFF !important;
}

/* Light mode: black text on yellow bridge days */
:root:not([data-theme="dark"]) .day-cell.bridge {
  color: #000000 !important;
}


[data-theme="dark"] {
  --text-primary: #FFFFFF;
  --text-secondary: #B0B0B0;
  --text-disabled: #666666;
  
  --background: #121212;
  --surface: #1E1E1E;
  --surface-hover: #2A2A2A;
  --border-color: #333333;
  --shadow-color: rgba(0, 0, 0, 0.5);
  
  --working-day-color: #2A2A2A;
  --weekend-color: #333333;
}

/* ===================================
   Reset & Base Styles
   =================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Loading Screen
   =================================== */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--background);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: var(--z-loading);
  gap: var(--spacing-lg);
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===================================
   App Container
   =================================== */
.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===================================
   Header
   =================================== */
.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-lg) var(--spacing-md);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.header-content {
  flex: 1;
}

.app-title {
  font-size: var(--font-size-xxl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

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

.header-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* ===================================
   Main Content
   =================================== */
.main-content {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

/* ===================================
   Cards
   =================================== */
.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  animation: slideIn var(--transition-base);
}

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

.section-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

/* ===================================
   Configuration Form
   =================================== */
.config-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

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

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

.form-control {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: inherit;
  background: var(--surface);
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.form-help {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.checkbox-group {
  flex-direction: row;
  align-items: center;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

/* ===================================
   Custom Vacation Periods
   =================================== */
.custom-periods-section {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

.section-header-inline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.subsection-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.custom-periods-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.custom-period-item {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--surface-hover);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  align-items: end;
}

.custom-period-item .form-group {
  margin: 0;
}

.custom-period-remove {
  padding: var(--spacing-sm);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
}

.custom-period-remove:hover {
  background: #ffebee;
  border-color: #ef5350;
  color: #ef5350;
}

.custom-period-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

/* ===================================
   Buttons
   =================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--surface-hover);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.icon-button {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  font-size: var(--font-size-lg);
}

.icon-button:hover {
  background: var(--surface-hover);
}

/* ===================================
   Statistics Grid
   =================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.stat-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--background);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.stat-icon {
  font-size: var(--font-size-xxxl);
  line-height: 1;
}

.stat-content {
  flex: 1;
}

.stat-value {
  font-size: var(--font-size-xxl);
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1.2;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

/* ===================================
   Suggestions List
   =================================== */
.suggestions-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.suggestion-card {
  padding: var(--spacing-lg);
  background: var(--background);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.suggestion-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}

.suggestion-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
  gap: var(--spacing-md);
}

.suggestion-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.suggestion-badge {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  white-space: nowrap;
}

.suggestion-dates {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.suggestion-metrics {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.metric {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.metric-value {
  font-weight: 600;
  color: var(--text-primary);
}

/* ===================================
   Calendar
   =================================== */
.calendar-instruction {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: #e3f2fd;
  border-left: 4px solid var(--primary-color);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: #1565c0;
}

.calendar-instruction .icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

[data-theme="dark"] .calendar-instruction {
  background: #1e3a5f;
  color: #90caf9;
  border-left-color: #64b5f6;
}

.calendar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--background);
  border-radius: var(--radius-md);
}

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

.legend-color {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.legend-color.holiday { background: var(--holiday-color); }
.legend-color.custom-vacation { background: var(--custom-vacation-color); }
.legend-color.vacation { background: var(--vacation-color); }
.legend-color.weekend { background: var(--weekend-color); }
.legend-color.bridge { background: var(--bridge-color); }

.calendar-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.calendar-month {
  background: var(--background);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
}

.month-header {
  font-size: var(--font-size-lg);
  font-weight: 600;
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.weekday-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  margin-bottom: var(--spacing-xs);
}

.weekday {
  text-align: center;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-secondary);
  padding: var(--spacing-xs);
}

.days-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.day-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  background: var(--working-day-color);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-weight: 500;
}

.day-cell:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-sm);
  z-index: 1;
}

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

.day-cell.empty:hover {
  transform: none;
  box-shadow: none;
}

.day-cell.weekend {
  background: var(--weekend-color);
  color: var(--text-secondary);
}

[data-theme="dark"] .day-cell.weekend {
  background: #2a2a2a;
  color: #999;
}

.day-cell.holiday {
  background: var(--holiday-color);
  color: white !important;
  font-weight: 600;
}

.day-cell.vacation {
  background: var(--vacation-color);
  color: white !important;
  font-weight: 600;
}

.day-cell.custom-vacation {
  background: var(--custom-vacation-color);
  color: white !important;
  font-weight: 600;
  position: relative;
}

.day-cell.custom-vacation::after {
  content: '📌';
  position: absolute;
  top: 2px;
  right: 2px;
  font-size: 0.6em;
}

.day-cell.bridge {
  background: var(--bridge-color);
  color: #000 !important;
  font-weight: 600;
}

[data-theme="dark"] .day-cell.bridge {
  color: #000 !important;
}

.day-cell.today {
  box-shadow: 0 0 0 2px var(--primary-color);
}

.day-cell.manually-selected {
  background: #FF6B6B !important;
  color: white !important;
  font-weight: 600;
  position: relative;
}

.day-cell.manually-selected::before {
  content: '✓';
  position: absolute;
  top: 2px;
  right: 2px;
  font-size: 0.7em;
  font-weight: bold;
}

.day-cell:not(.empty):not(.holiday):not(.weekend) {
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.day-cell:not(.empty):not(.holiday):not(.weekend):hover {
  transform: scale(1.05);
  box-shadow: 0 2px 8px var(--shadow-color);
}

/* ===================================
   Selection Counter
   =================================== */
.selection-counter {
  display: none;
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: var(--radius-lg);
  color: white;
}

.selection-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.selection-info .icon {
  font-size: 1.5rem;
}

.selection-info span {
  flex: 1;
  min-width: 150px;
}

.selection-info button {
  margin-left: auto;
}

/* ===================================
   Modal
   =================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.modal[aria-hidden="false"] {
  display: flex;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn var(--transition-base);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

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

.modal-header h2 {
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  font-size: var(--font-size-xxl);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.modal-close:hover {
  background: var(--surface-hover);
}

.modal-body {
  padding: var(--spacing-lg);
}

.modal-body h3 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-lg);
}

.modal-body h3:first-child {
  margin-top: 0;
}

.modal-body ol, .modal-body ul {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.modal-body li {
  margin-bottom: var(--spacing-sm);
}

/* ===================================
   Toast Notifications
   =================================== */
.toast-container {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 400px;
}

.toast {
  background: var(--surface);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  animation: toastSlideIn var(--transition-base);
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast.success { border-left: 4px solid var(--secondary-color); }
.toast.error { border-left: 4px solid var(--holiday-color); }
.toast.info { border-left: 4px solid var(--primary-color); }

/* ===================================
   Footer
   =================================== */
.app-footer {
  background: var(--surface);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.app-footer a {
  color: var(--primary-color);
  text-decoration: none;
}

.app-footer a:hover {
  text-decoration: underline;
}

/* ===================================
   Utility Classes
   =================================== */
.icon {
  display: inline-block;
  line-height: 1;
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .header-actions {
    width: 100%;
    justify-content: flex-end;
  }
  
  .app-title {
    font-size: var(--font-size-xl);
  }
  
  .main-content {
    padding: var(--spacing-md);
  }
  
  .card {
    padding: var(--spacing-md);
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .calendar-container {
    grid-template-columns: 1fr;
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .toast-container {
    left: var(--spacing-md);
    right: var(--spacing-md);
    bottom: var(--spacing-md);
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .calendar-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1025px) {
  .calendar-container {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
  .app-header,
  .header-actions,
  .form-actions,
  .section-actions,
  .app-footer,
  .modal,
  .toast-container {
    display: none !important;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #000;
    page-break-inside: avoid;
  }
  
  .calendar-month {
    page-break-inside: avoid;
  }
}

/* ===================================
   Accessibility
   =================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn {
    border: 2px solid currentColor;
  }
  
  .day-cell {
    border: 2px solid currentColor;
  }
}

/* Made with Bob */