/* ==========================================================================
   CSS Custom Properties & Design Tokens
   ========================================================================== */
:root {
  /* Default Light Theme Values */
  --bg-primary: #f4f5f7;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  
  --accent: #6366f1; /* Indigo */
  --accent-light: #e0e7ff;
  --accent-hover: #4f46e5;
  
  --border-color: #e5e7eb;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --danger-hover: #dc2626;
  
  --success: #10b981;
  --success-light: #d1fae5;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  
  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* System-level Dark Theme Settings */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #09090b;
    --bg-secondary: #121216;
    --bg-card: #18181c;
    --text-primary: #f3f4f6;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;
    
    --accent: #818cf8;
    --accent-light: #1e1b4b;
    --accent-hover: #6366f1;
    
    --border-color: #27272a;
    --danger: #f87171;
    --danger-light: #451a03;
    --danger-hover: #ef4444;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 30px rgba(0, 0, 0, 0.5);
  }
}

/* Explicit Light Theme Class Override */
[data-theme="light"] {
  --bg-primary: #f4f5f7;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  
  --accent: #6366f1;
  --accent-light: #e0e7ff;
  --accent-hover: #4f46e5;
  
  --border-color: #e5e7eb;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --danger-hover: #dc2626;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Explicit Dark Theme Class Override */
[data-theme="dark"] {
  --bg-primary: #09090b;
  --bg-secondary: #121216;
  --bg-card: #18181c;
  --text-primary: #f3f4f6;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;
  
  --accent: #818cf8;
  --accent-light: #1e1b4b;
  --accent-hover: #6366f1;
  
  --border-color: #27272a;
  --danger: #f87171;
  --danger-light: #451a03;
  --danger-hover: #ef4444;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 30px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   Base & Global Resets
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  user-select: none;
}

/* Helper Class to hide elements */
.hidden {
  display: none !important;
}

/* ==========================================================================
   App Container & Navigation Shell
   ========================================================================== */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  max-width: 480px; /* Mobile focused max-width */
  margin: 0 auto;
  background-color: var(--bg-secondary);
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  z-index: 10;
  height: 64px;
}

.app-title {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Status / Sync Indicator */
.status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  padding: 6px 12px;
  border-radius: 50px;
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.icon-status {
  font-size: 1rem !important;
  color: var(--text-muted);
}

/* Status States */
.status-indicator.online {
  border-color: rgba(16, 185, 129, 0.2);
  color: var(--success);
}
.status-indicator.online .icon-status {
  color: var(--success);
}

.status-indicator.offline {
  border-color: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}
.status-indicator.offline .icon-status {
  color: var(--danger);
}

.status-indicator.syncing .icon-status {
  color: var(--accent);
  animation: spin 1.5s linear infinite;
}

/* Interactive Buttons */
.icon-button {
  background: none;
  border: none;
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.icon-button:hover {
  background-color: var(--bg-primary);
}

.icon-button:active {
  transform: scale(0.95);
}

/* Плавное отображение кнопки настроек для администратора */
#btn-open-settings {
  transition: opacity var(--transition-normal) ease, transform var(--transition-normal) ease, background-color var(--transition-fast);
  opacity: 0;
  transform: scale(0.8);
}

#btn-open-settings.show-admin {
  opacity: 1;
  transform: scale(1);
}

/* User Profile & Dropdown */
.user-profile-menu-container {
  position: relative;
}

.avatar-button {
  border: none;
  background: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  overflow: hidden;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border-color);
  transition: border-color var(--transition-fast);
}

.avatar-button:hover, .avatar-button:focus {
  border-color: var(--accent);
}

.user-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-dropdown {
  position: absolute;
  top: 48px;
  right: 0;
  width: 220px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 12px;
  z-index: 100;
  animation: slideInDown var(--transition-fast) forwards;
  transform-origin: top right;
}

.dropdown-header {
  padding: 4px 8px 10px 8px;
}

.user-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-email {
  font-size: 0.75rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dropdown-divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 8px 0;
}

.dropdown-item {
  width: 100%;
  padding: 10px;
  border: none;
  background: none;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--bg-primary);
}

.dropdown-item.danger-text {
  color: var(--danger);
}

.dropdown-item.danger-text:hover {
  background-color: var(--danger-light);
}

/* ==========================================================================
   Main Content Layout & Views
   ========================================================================== */
.app-main {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.view-section {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
  opacity: 0;
  transition: opacity var(--transition-fast) ease-in-out;
}

.view-section.active {
  display: flex;
  flex-direction: column;
  opacity: 1;
  z-index: 1;
}

/* ==========================================================================
   VIEW: Auth/Welcome Card
   ========================================================================== */
#view-auth {
  justify-content: center;
  align-items: center;
  padding: 40px 24px;
  background-color: var(--bg-primary);
}

.auth-card {
  width: 100%;
  max-width: 360px;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  animation: scaleUp var(--transition-normal) forwards;
}

.auth-logo {
  margin-bottom: 24px;
}

.logo-inner {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-light), rgba(168, 85, 247, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon {
  font-size: 2.5rem !important;
  color: var(--accent);
  animation: pulseHourglass 4s ease-in-out infinite;
}

.auth-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.auth-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.6;
}

.auth-actions {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Warning banner in local-only mode details */
.warning-banner {
  background-color: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  gap: 10px;
  text-align: left;
  margin-bottom: 8px;
}

.warning-banner span {
  color: #f59e0b;
  font-size: 1.25rem !important;
  flex-shrink: 0;
}

.warning-banner p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Buttons System */
.btn {
  width: 100%;
  min-height: 48px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: all var(--transition-fast);
}

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

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

.btn-primary:active {
  transform: scale(0.98);
}

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

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

.btn-secondary:active {
  transform: scale(0.98);
}

.btn-danger {
  background-color: var(--danger-light);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
  background-color: var(--danger);
  color: #ffffff;
}

.btn-google {
  background-color: #ffffff;
  color: #374151;
  border: 1px solid #d1d5db;
}

.btn-google:hover {
  background-color: #f9fafb;
  border-color: #c5c7cb;
}

.google-logo-svg {
  flex-shrink: 0;
}

/* ==========================================================================
   VIEW: Dashboard (Scrollable list with PTR)
   ========================================================================== */
.dashboard-scroll-area {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 16px 20px 80px 20px; /* bottom padding for FAB */
  position: relative;
  height: 100%;
}

/* Pull to Refresh Indicator */
.pull-to-refresh-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  margin-top: -40px; /* Pull it outside scroll area view */
  opacity: 0;
  transition: opacity var(--transition-fast) ease, margin var(--transition-fast) ease;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.pull-to-refresh-indicator.visible {
  margin-top: 0;
  opacity: 1;
}

.spin-icon {
  font-size: 1.1rem !important;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
  animation: fadeIn var(--transition-normal) forwards;
}

.empty-icon {
  font-size: 3.5rem !important;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.empty-state h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 0.85rem;
  margin-bottom: 24px;
  max-width: 250px;
  line-height: 1.5;
}

.empty-state .btn {
  max-width: 200px;
}

/* Events Cards Grid */
.events-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.event-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
  overflow: hidden;
  animation: slideInUp var(--transition-normal) forwards;
}

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

.event-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.event-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-right: 24px; /* Space for delete button */
  word-break: break-word;
}

.btn-delete-event {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  opacity: 0.6;
}

.event-card:hover .btn-delete-event {
  opacity: 1;
}

.btn-delete-event:hover {
  background-color: var(--danger-light);
  color: var(--danger);
}

.event-card-time {
  margin: 14px 0 6px 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.time-number {
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.time-label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.event-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-color);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.smart-period {
  font-weight: 500;
  color: var(--accent);
}

.event-direction-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
}

.indicator-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.indicator-dot.past {
  background-color: var(--success);
}

.indicator-dot.future {
  background-color: var(--accent);
}

/* Floating Action Button (FAB) */
.fab-button {
  position: absolute;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  color: #ffffff;
  border: none;
  box-shadow: 0 8px 16px rgba(99, 102, 241, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 5;
}

.fab-button span {
  font-size: 1.8rem !important;
}

.fab-button:hover {
  transform: scale(1.08) rotate(90deg);
  box-shadow: 0 12px 20px rgba(99, 102, 241, 0.4);
}

.fab-button:active {
  transform: scale(0.95);
}

/* ==========================================================================
   Modals & Forms Layout
   ========================================================================== */
.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-end; /* Mobile bottom sheet style */
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast) ease-in-out;
}

.modal-overlay:not(.hidden) {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  width: 100%;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 24px;
  box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.15);
  transform: translateY(100%);
  transition: transform var(--transition-normal) cubic-bezier(0.16, 1, 0.3, 1);
  max-height: 85%;
  overflow-y: auto;
}

.modal-overlay:not(.hidden) .modal-card {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Form Styling */
.modal-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input {
  min-height: 48px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  width: 100%;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
  background-color: var(--bg-secondary);
}

/* Info block details */
.info-block {
  flex-direction: row !important;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background-color: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.info-block span {
  color: var(--accent);
  font-size: 1.2rem !important;
}

.modal-actions, .settings-actions {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.modal-actions button, .settings-actions button {
  flex: 1;
}

/* ==========================================================================
   Settings Specifc Styles
   ========================================================================== */
.settings-section {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.settings-section:last-child {
  border-bottom: none;
}

.settings-sec-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.settings-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 48px;
}

.settings-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.settings-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 12px;
}

/* Theme Picker */
.theme-picker {
  display: flex;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 4px;
  border-radius: 50px;
}

.theme-btn {
  background: none;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.theme-btn:hover {
  color: var(--text-primary);
}

.theme-btn.active {
  background-color: var(--bg-secondary);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Offline Banner & Toast Messages
   ========================================================================== */
.offline-banner {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--danger);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 999;
  animation: slideInUp var(--transition-fast) forwards;
}

.offline-banner span {
  font-size: 1.1rem !important;
}

.toast-container {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 10000;
  pointer-events: none;
}

.toast {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
  animation: slideInRight var(--transition-fast) forwards, fadeOut var(--transition-fast) 3s forwards;
  max-width: 100%;
  word-break: break-word;
}

.toast.success {
  border-left: 4px solid var(--success);
}
.toast.success span {
  color: var(--success);
}

.toast.error {
  border-left: 4px solid var(--danger);
}
.toast.error span {
  color: var(--danger);
}

.toast.info {
  border-left: 4px solid var(--accent);
}
.toast.info span {
  color: var(--accent);
}

/* ==========================================================================
   Keyframes & Animations
   ========================================================================== */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulseHourglass {
  0% { transform: rotate(0deg); opacity: 0.9; }
  45% { transform: rotate(0deg); }
  50% { transform: rotate(180deg); }
  95% { transform: rotate(180deg); }
  100% { transform: rotate(360deg); opacity: 0.9; }
}

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

@keyframes fadeOut {
  0%, 85% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(10px); }
}

@keyframes scaleUp {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

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

@keyframes slideInDown {
  from { opacity: 0; transform: scale(0.95) translateY(-10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Skeleton loader for cards loading states */
.skeleton-card {
  height: 140px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.skeleton-text {
  height: 16px;
  background: linear-gradient(90deg, var(--border-color) 25%, var(--bg-primary) 50%, var(--border-color) 75%);
  background-size: 200% 100%;
  animation: loadingShimmer 1.5s infinite;
  border-radius: 4px;
}

.skeleton-title {
  width: 60%;
  height: 20px;
}

.skeleton-time {
  width: 40%;
  height: 48px;
  margin: 12px 0;
}

.skeleton-footer {
  width: 80%;
  height: 14px;
}

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