/* ========================================
   HOLIDAY CALENDAR STYLES
   ======================================== */

:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --border-color: #e2e8f0;
  --border-hover: #cbd5e1;
  --accent-primary: #3b82f6;
  --accent-secondary: #6366f1;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
}

/* Card Styles */
.card {
  background: var(--bg-secondary);
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1.25rem 1.5rem;
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
}

/* Weekend Mode Toggle */
.weekend-mode-toggle {
  display: flex;
  gap: 1rem;
}

@media (max-width: 640px) {
  .weekend-mode-toggle {
    flex-direction: column;
  }
}

.weekend-option {
  flex: 1;
  cursor: pointer;
}

.weekend-option input {
  display: none;
}

.weekend-option-content {
  padding: 1rem 1.25rem;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  transition: all 0.2s ease;
  background: var(--bg-secondary);
}

.weekend-option:hover .weekend-option-content {
  border-color: var(--border-hover);
  background: var(--bg-tertiary);
}

.weekend-option input:checked + .weekend-option-content {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.weekend-option-title {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.weekend-option input:checked + .weekend-option-content .weekend-option-title::before {
  content: '';
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z'/%3E%3C/svg%3E");
  background-size: 12px;
  background-position: center;
  background-repeat: no-repeat;
  flex-shrink: 0;
}

.weekend-option input:not(:checked) + .weekend-option-content .weekend-option-title::before {
  content: '';
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  flex-shrink: 0;
}

.weekend-option-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding-left: 26px;
}

/* Holiday List */
.holidays-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.holiday-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  transition: all 0.2s ease;
}

.holiday-item:hover {
  border-color: var(--border-hover);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.holiday-item-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  border-radius: 10px;
  color: white;
  flex-shrink: 0;
}

.holiday-date-day {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
}

.holiday-date-month {
  font-size: 0.7rem;
  text-transform: uppercase;
  opacity: 0.9;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

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

.holiday-item-name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.holiday-item-full-date {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.holiday-item-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* Empty State */
.holidays-empty {
  padding: 3rem 1rem;
  text-align: center;
}

.holidays-empty svg {
  margin-bottom: 1rem;
}

.holidays-empty p {
  margin: 0;
}

.holidays-empty p:first-of-type {
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.holidays-empty p:last-of-type {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  gap: 0.375rem;
  text-decoration: none;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
}

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

.btn-primary:hover {
  background: #2563eb;
}

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

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

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

.btn-danger:hover {
  background: #dc2626;
}

.btn-submit {
  width: 100%;
  padding: 0.875rem 1.5rem;
  background: linear-gradient(135deg, var(--accent-success) 0%, #059669 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-submit:active {
  transform: translateY(0);
}

/* Form Elements */
.form-group {
  margin-bottom: 1rem;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-group .required {
  color: var(--accent-danger);
}

.input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.9375rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.input::placeholder {
  color: var(--text-muted);
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-overlay.show {
  display: flex;
}

.modal-content {
  background: var(--bg-secondary);
  border-radius: 12px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  width: 100%;
  max-width: 420px;
  animation: modalSlideIn 0.2s ease;
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
  color: var(--text-primary);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s ease;
}

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

.modal-body {
  padding: 1.25rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  border-radius: 0 0 12px 12px;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.loading-overlay.show {
  display: flex;
}

.loading-card {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

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

.loading-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.loading-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 12px 24px;
  border-radius: 8px;
  color: white;
  font-weight: 500;
  z-index: 9999;
  animation: toastSlideIn 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.toast-success {
  background: var(--accent-success);
}

.toast-error {
  background: var(--accent-danger);
}

.toast-info {
  background: var(--accent-primary);
}

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

@keyframes toastFadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

/* Back Link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
  margin-bottom: 0.5rem;
}

.back-link:hover {
  color: var(--text-primary);
}

/* Page Header */
.page-header {
  margin-bottom: 1.5rem;
}

.page-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.25rem 0;
}

.page-header p {
  color: var(--text-secondary);
  margin: 0;
}

/* Section Header */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.section-header p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0.25rem 0 0 0;
}