/* Notification Stack Component */

/* Notification Menu - only styles actually used */
.notification-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--size-2);
  padding: var(--size-2);
}

.notification-dropdown {
  position: absolute;
  left: 50%;
  transform: translateX(-80%);
  top: 3rem;
  width: min(calc(100vw - 2rem), 400px);
  background: var(--layer-surface);
  border-radius: var(--radius-medium);
  box-shadow: var(--elevation-3);
  z-index: var(--layer-modal);
}

@media (min-width: 48em) {
  .notification-dropdown {
    left: auto;
    right: 0;
    transform: none;
  }
}

.notification-stack {
  --size-stack-offset: var(--size-3); /* Offset for stacked cards */
  position: fixed;
  bottom: var(--size-4);
  right: var(--size-4);
  z-index: var(--layer-navigation);
  width: var(--size-content-2);
  pointer-events: none; /* Allow clicks through the container */
}

/* Desktop notification tray placeholder */
.notification-tray-placeholder {
  position: fixed;
  bottom: var(--size-4);
  right: var(--size-4);
  width: var(--size-content-2);
  background: var(--layer-surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-large);
  box-shadow: var(--elevation-3);
  padding: var(--size-3);
  z-index: var(--layer-navigation);
  text-decoration: none;
  color: inherit;
  display: block;
  transition: all 0.2s var(--ease-standard);
}

.notification-tray-placeholder:hover {
  box-shadow: var(--elevation-4);
  transform: translateY(-2px);
}

.notification-tray-header {
  display: flex;
  align-items: center;
  gap: var(--size-2);
  font-weight: var(--font-weight-6);
  color: var(--on-surface);
  margin-bottom: var(--size-2);
}

.notification-tray-empty {
  color: var(--on-surface-variant);
  font-size: var(--font-size-body-small);
  text-align: center;
}

/* Collapsed state (default) */
.notification-stack:not(.expanded) .notification-card {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 100%;
  overflow: hidden; /* Hide content that exceeds the fixed height */
}
.notification-stack:not(.expanded) .notification-card[data-stack-position="0"] {
  transform: translateY(0) scale(1);
  height: 110px; /* Fixed height for consistent stacking */
}

.notification-stack:not(.expanded) .notification-card[data-stack-position="1"] {
  transform: translateY(calc(var(--size-stack-offset) * -1)) scale(0.98);
  height: 110px; /* Fixed height for consistent stacking */
}

.notification-stack:not(.expanded) .notification-card[data-stack-position="2"] {
  transform: translateY(calc(var(--size-stack-offset) * -2)) scale(0.96);
  height: 110px; /* Fixed height for consistent stacking */
}

.notification-stack:not(.expanded) .notification-card[data-stack-position="3"] {
  transform: translateY(calc(var(--size-stack-offset) * -3)) scale(0.94);
  height: 110px; /* Fixed height for consistent stacking */
}

.notification-stack:not(.expanded) .notification-card[data-stack-position="4"] {
  transform: translateY(calc(var(--size-stack-offset) * -4)) scale(0.92);
  height: 110px; /* Fixed height for consistent stacking */
}

/* Expanded state - cards expand upward */
.notification-stack.expanded {
  display: flex;
  flex-direction: column-reverse; /* Stack from bottom up */
  align-items: flex-end;
}

.notification-stack.expanded .notification-card {
  position: relative;
  margin-top: var(--size-2); /* Space between cards when expanded */
  transform: translateY(0) scale(1) !important;
  height: auto !important; /* Reset to natural height when expanded */
  overflow: visible !important; /* Show all content when expanded */
}

.notification-card {
  background: var(--layer-surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-large);
  box-shadow: var(--elevation-3);
  padding: var(--size-3);
  cursor: pointer;
  transition: all 0.3s var(--ease-standard);
  pointer-events: auto; /* Enable clicks on cards */
  min-height: 80px;
  width: max(var(--size-content-2), 400px);
  transform-origin: bottom center;
}

/* Hover only affects expanded cards */
.notification-stack.expanded .notification-card:hover {
  box-shadow: var(--elevation-4);
  transform: translateY(-2px) scale(1.02) !important;
  z-index: 1010 !important;
}

.notification-stack.expanded .notification-card:active {
  transform: translateY(0) scale(0.98) !important;
  box-shadow: var(--elevation-2);
}

/* Card Content Layout - Avatar on left, 3 lines on right */
.notification-card-content {
  display: flex;
  gap: var(--size-3);
  align-items: flex-start;
}

.notification-avatar {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--secondary-container);
}

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

.notification-avatar .avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--on-primary);
  font-size: var(--font-size-body-medium);
  font-weight: var(--font-weight-6);
}

.notification-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  border-radius: var(--radius-full);
}

/* Three-line content area */
.notification-details {
  flex: 1;
  min-width: 0; /* Allow text truncation */
  display: flex;
  flex-direction: column;
  gap: var(--size-1);
}

/* Line 1: Title */
.notification-title {
  font-size: 1rem; /* Normal font size */
  font-weight: var(--font-weight-6);
  color: var(--on-surface);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Line 2: Summary/Excerpt */
.notification-summary {
  font-size: var(--font-size-body-small);
  color: var(--on-surface-variant);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Line 3: Meta information (actor, time, conference) */
.notification-meta {
  display: flex;
  align-items: center;
  gap: var(--size-1);
  font-size: var(--font-size-body-small);
  color: var(--on-surface-variant);
  line-height: 1.2;
}

.notification-actor {
  font-weight: var(--font-weight-5);
  color: var(--on-surface);
}

.notification-timestamp {
  white-space: nowrap;
}

.notification-separator {
  color: var(--outline);
}

.notification-conference {
  color: var(--primary);
  font-weight: var(--font-weight-5);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Stack Footer with "View All" Link */
.notification-stack-footer {
  pointer-events: auto;
}

/* Position footer at top in expanded state due to column-reverse */
.notification-stack.expanded .notification-stack-footer {
  margin-bottom: var(--size-2);
  min-width: max(var(--size-content-2), 400px);
}

.notification-view-all {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--size-2);
  padding: var(--size-2) var(--size-3);
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  text-decoration: none;
  border-radius: var(--radius-medium);
  font-size: var(--font-size-body-small);
  font-weight: var(--font-weight-5);
  transition: all 0.2s var(--ease-standard);
  border: 1px solid var(--outline-variant);
  min-width: max(var(--size-content-2), 400px);
}

.notification-view-all:hover {
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  box-shadow: var(--elevation-1);
}

/* Hover effect for stack expansion */
.notification-stack:hover .notification-card {
  transition: transform 0.3s var(--ease-standard);
}

/* Stacking positions for multiple cards - first item on top */
.notification-card[data-stack-position="0"] {
  z-index: 1005;
}

.notification-card[data-stack-position="1"] {
  z-index: 1004;
}

.notification-card[data-stack-position="2"] {
  z-index: 1003;
}

.notification-card[data-stack-position="3"] {
  z-index: 1002;
}

.notification-card[data-stack-position="4"] {
  z-index: 1001;
}

/* Only apply opacity in collapsed state for distant cards */
.notification-stack:not(.expanded) .notification-card[data-stack-position="3"] {
  opacity: 0.9;
}

.notification-stack:not(.expanded) .notification-card[data-stack-position="4"] {
  opacity: 0.8;
}

/* Mobile Notification Tray - positioned like desktop but smaller */
.mobile-notification-tray {
  position: fixed;
  bottom: var(--size-4);
  right: var(--size-4);
  width: max(40%, 300px);
  max-height: 60px;
  z-index: var(--layer-navigation);
  background: var(--layer-surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-large);
  box-shadow: var(--elevation-3);
  padding: var(--size-2);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s var(--ease-standard);
  overflow: hidden;
}

.mobile-notification-tray:hover {
  box-shadow: var(--elevation-4);
  transform: translateY(-2px);
}

.mobile-notification-content {
  display: flex;
  gap: var(--size-2);
  align-items: flex-start;
}

.mobile-notification-content .notification-avatar,
.mobile-notification-content .notification-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--secondary-container);
}

.mobile-notification-content .avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mobile-notification-content .avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--on-primary);
  font-size: var(--font-size-label-small);
  font-weight: var(--font-weight-6);
}

.mobile-notification-details {
  flex: 1;
  min-width: 0; /* Allow text truncation */
}

.mobile-notification-title {
  font-size: var(--font-size-body-small);
  font-weight: var(--font-weight-5);
  color: var(--on-surface);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.mobile-notification-actor {
  font-size: var(--font-size-label-small);
  color: var(--on-surface-variant);
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Mobile notification card styling */
.mobile-notification-card {
  background: var(--layer-surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-large);
  box-shadow: var(--elevation-3);
  padding: var(--size-2);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s var(--ease-standard);
  height: 60px;
  overflow: hidden;
  display: block;
  width: 100%;
}

.mobile-notification-card:hover {
  box-shadow: var(--elevation-4);
  transform: translateY(-2px);
}

/* Notification groups spacing */
.notification-group {
  margin-block: var(--size-6);
}

.notification-group:first-child {
  margin-block-start: 0;
}

/* Notification item spacing */
.notification-item {
  margin-block: var(--size-3);
}

.notification-item:last-child {
  margin-block-end: 0;
}

/* Notification item wrapper for link and button */
.notification-item-wrapper {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--size-2);
}

.notification-item .notification-link {
  flex: 1;
  text-decoration: none;
  color: inherit;
  display: block;
  padding: var(--size-3);
  background: var(--layer-surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-medium);
  transition: all 0.2s var(--ease-standard);
}

.notification-item .notification-link:hover {
  background: var(--surface-variant);
  box-shadow: var(--elevation-1);
}

.notification-item .notification-link.unread {
  background: rgba(var(--yellow-chip), 0.15);
  border-color: var(--outline-variant);
}

/* Position button within notification */
.notification-item .button.icon {
  position: absolute;
  top: var(--size-2);
  right: var(--size-2);
}

/* Context menu for read notifications */
.notification-context-trigger {
  position: absolute;
  top: var(--size-2);
  right: var(--size-2);
  padding: var(--size-1);
  background: transparent;
  border: none;
  border-radius: var(--radius-small);
  color: var(--on-surface-variant);
  cursor: pointer;
  transition: all 0.2s var(--ease-standard);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

/* Context trigger when inside actions wrapper */
.notification-actions .notification-context-trigger {
  position: static;
}

.notification-context-trigger:hover {
  background: var(--surface-variant);
  color: var(--on-surface);
}

.notification-context-trigger:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.notification-context-menu {
  position: absolute;
  top: var(--size-2);
  right: calc(var(--size-2) + 40px); /* Position to the left of trigger */
  background: var(--layer-surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-medium);
  box-shadow: var(--elevation-2);
  padding: var(--size-1);
  z-index: 10;
  min-width: 140px;
}

.notification-context-menu-item {
  display: block;
  width: 100%;
  padding: var(--size-2) var(--size-3);
  background: transparent;
  border: none;
  border-radius: var(--radius-small);
  color: var(--on-surface);
  text-align: left;
  cursor: pointer;
  transition: all 0.2s var(--ease-standard);
  font-size: var(--font-size-body-small);
  white-space: nowrap;
}

.notification-context-menu-item:hover {
  background: var(--surface-variant);
  color: var(--primary);
}

.notification-context-menu-item:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: -2px;
}

/* Notification items in index view - mobile responsive */
@media (max-width: 768px) {
  .notification-item .notification-card-content {
    gap: var(--size-2);
  }

  .notification-item .notification-avatar,
  .notification-item .notification-icon {
    width: 32px;
    height: 32px;
  }

  .notification-item .notification-details {
    gap: 4px;
    min-width: 0; /* Ensure proper text truncation */
  }

  /* Remove font-size override - keep 1rem from base style */

  .notification-item .notification-summary {
    font-size: var(--font-size-label-medium);
  }

  .notification-item .notification-meta {
    font-size: var(--font-size-label-small);
    gap: 4px;
    flex-wrap: wrap; /* Allow wrapping on very small screens */
  }

  .notification-item .notification-actor {
    font-size: var(--font-size-label-small);
  }

  /* Adjust context menu position on mobile */
  .notification-context-menu {
    right: auto;
    left: var(--size-2);
    top: calc(var(--size-2) + 40px); /* Position below trigger on mobile */
  }
}

/* Mobile Responsive Design for notification stack */
@media (max-width: 768px) {
  .notification-stack {
    bottom: 70px; /* Same position as desktop */
    right: 10px;
    left: auto; /* Reset left positioning */
    width: 45%; /* Mobile width */
    z-index: var(--layer-navigation); /* Same as desktop */
  }
  
  /* Adjust collapsed state for mobile */
  .notification-stack:not(.expanded) .notification-card[data-stack-position="1"] {
    transform: translateY(calc(var(--size-3) * -1)) scale(0.98);
  }

  .notification-stack:not(.expanded) .notification-card[data-stack-position="2"] {
    transform: translateY(calc(var(--size-3) * -2)) scale(0.96);
  }

  .notification-stack:not(.expanded) .notification-card[data-stack-position="3"] {
    transform: translateY(calc(var(--size-3) * -3)) scale(0.94);
  }

  .notification-stack:not(.expanded) .notification-card[data-stack-position="4"] {
    transform: translateY(calc(var(--size-3) * -4)) scale(0.92);
  }

  .notification-card {
    padding: var(--size-2);
    min-height: 70px;
  }

  /* Fixed height for mobile collapsed state too */
  .notification-stack:not(.expanded) .notification-card {
    height: 70px; /* Smaller fixed height for mobile */
  }

  .notification-card-content {
    gap: var(--size-2);
  }

  .notification-avatar,
  .notification-icon {
    width: 32px;
    height: 32px;
  }

  .notification-details {
    gap: 4px;
  }

  .notification-title {
    font-size: var(--font-size-body-small);
  }

  .notification-summary {
    font-size: var(--font-size-label-medium);
  }

  .notification-meta {
    font-size: var(--font-size-label-small);
    gap: 4px;
  }

  .notification-actor {
    font-size: var(--font-size-label-small);
  }

  /* Reduce number of visible cards on mobile */
  .notification-card[data-stack-position="3"],
  .notification-card[data-stack-position="4"] {
    display: none;
  }
}

/* Dark mode considerations */
@media (prefers-color-scheme: dark) {
  .notification-card {
    border-color: var(--outline);
  }
}

/* Animation for new notifications arriving */
@keyframes slideInFromTop {
  from {
    transform: translateY(-100px) scale(1.1);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

.notification-card.entering {
  animation: slideInFromTop 0.5s var(--ease-standard);
}

/* Animation for notifications being removed */
@keyframes slideOutRight {
  from {
    transform: translateX(0) scale(1);
    opacity: 1;
  }
  to {
    transform: translateX(100%) scale(0.8);
    opacity: 0;
  }
}

.notification-card.exiting {
  animation: slideOutRight 0.4s var(--ease-standard);
}

/* Animation for cards shifting when one is removed */
@keyframes shiftUp {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-10px);
  }
}

.notification-card.shifting {
  animation: shiftUp 0.3s var(--ease-standard);
}

/* Fade in for new cards being appended */
@keyframes fadeInScale {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.notification-card.appearing {
  animation: fadeInScale 0.4s var(--ease-standard);
}

/* Focus states for accessibility */
.notification-card:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.notification-view-all:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .notification-card {
    border-width: 2px;
    border-color: var(--outline);
  }
  
  .notification-view-all {
    border-width: 2px;
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .notification-card,
  .notification-view-all,
  .notification-stack:hover .notification-card {
    transition: none;
  }
  
  .notification-card.entering,
  .notification-card.exiting,
  .notification-card.shifting,
  .notification-card.appearing {
    animation: none;
  }
  
  /* For reduced motion, use simple opacity changes */
  .notification-card.exiting {
    opacity: 0.3;
  }
  
  .notification-card.appearing {
    opacity: 1;
  }
}