.notification-bell {
  display: inline-block;
  transition: transform 0.3s ease;
}

.notification-bell.has-unread {
  animation: bell-ring 2s ease-in-out infinite;
}

@keyframes bell-ring {
  0%, 100% {
    transform: rotate(0);
  }

  5% {
    transform: rotate(15deg);
  }

  10% {
    transform: rotate(-15deg);
  }

  15% {
    transform: rotate(12deg);
  }

  20% {
    transform: rotate(-12deg);
  }

  25% {
    transform: rotate(8deg);
  }

  30% {
    transform: rotate(-8deg);
  }

  35% {
    transform: rotate(0);
  }
}

.notification-badge {
  position: relative;
  top: -2px;
  margin-left: 5px;
  font-size: 0.7rem;
  padding: 0.2em 0.45em;
  border-radius: 10px;
  animation: pulse 2s infinite;
}

.notification-tray {
  min-width: 350px;
  max-height: 450px;
  overflow-y: auto;
  padding: 0;
  border: none;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  border-radius: 8px;
}

.notification-tray .notification-tray-header {
  padding: 12px 16px;
  background-color: #f8f9fa;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  z-index: 1;
}

.notification-tray .notification-tray-header h6 {
  margin: 0;
  font-weight: 600;
  color: #333;
}

.notification-tray .notification-tray-list {
  max-height: 350px;
  overflow-y: auto;
}

.notification-tray .notification-item {
  display: block;
  padding: 12px 16px;
  border-bottom: 1px solid #f0f0f0;
  color: #333;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.notification-tray .notification-item:hover {
  background-color: #f8f9fa;
  text-decoration: none;
  color: #333;
}

.notification-tray .notification-item.unread {
  background-color: #e8f4fd;
  border-left: 3px solid #5381c7;
}

.notification-tray .notification-item.unread:hover {
  background-color: #dbeefa;
}

.notification-tray .notification-item:last-child {
  border-bottom: none;
}

.notification-tray .notification-item .notification-title {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 4px;
  color: #333;
}

.notification-tray .notification-item .notification-body {
  font-size: 0.8rem;
  color: #666;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.notification-tray .notification-item .notification-date {
  font-size: 0.75rem;
  color: #999;
}

.notification-tray .notification-empty {
  padding: 40px 20px;
  text-align: center;
  color: #999;
}

.notification-tray .notification-empty i {
  font-size: 2rem;
  margin-bottom: 10px;
  display: block;
}

.notification-tray .notification-loading {
  padding: 30px 20px;
  text-align: center;
  color: #666;
}

.notification-banner {
  background: linear-gradient(135deg, #e8f4fd 0%, #d0e8f9 100%);
  border: 1px solid #b8d4ea;
  border-left: 4px solid #5381c7;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 20px;
  position: relative;
  transition: all 0.3s ease;
}

.notification-banner:hover {
  box-shadow: 0 4px 12px rgba(83, 129, 199, 0.15);
}

.notification-banner .banner-dismiss {
  position: absolute;
  top: 8px;
  right: 12px;
  background: none;
  border: none;
  font-size: 1.2rem;
  color: #5381c7;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
  padding: 4px 8px;
  line-height: 1;
}

.notification-banner .banner-dismiss:hover {
  opacity: 1;
}

.notification-banner .banner-icon {
  color: #5381c7;
  margin-right: 8px;
}

.notification-banner .banner-title {
  font-weight: 600;
  color: #35527a;
  margin-bottom: 4px;
  padding-right: 30px;
}

.notification-banner .banner-body {
  font-size: 0.9rem;
  color: #4a6785;
  margin-bottom: 8px;
}

.notification-banner .banner-link {
  display: inline-block;
  font-size: 0.85rem;
  color: #5381c7;
  font-weight: 500;
}

.notification-banner .banner-link:hover {
  color: #35527a;
  text-decoration: underline;
}

.notification-banner .banner-link i {
  margin-left: 4px;
  font-size: 0.8rem;
}

@media (max-width: 576px) {
  .notification-tray {
    min-width: 280px;
    max-width: calc(100vw - 30px);
  }

  .notification-banner {
    padding: 12px 16px;
  }

  .notification-banner .banner-title {
    font-size: 0.95rem;
  }

  .notification-banner .banner-body {
    font-size: 0.85rem;
  }
}

.alerts-reader {
  min-height: calc(100vh - 60px);
  background: #f8f9fc;
}

.alert-article {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  padding: 2.5rem;
  margin-bottom: 2rem;
}

.alert-article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #eef1f5;
}

.alert-article-title {
  font-size: 1.75rem;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.alert-article-meta {
  font-size: 0.875rem;
  color: #8898aa;
}

.alert-article-meta i {
  margin-right: 0.25rem;
}

.alert-article-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #3d4852;
  max-width: 700px;
}

.alert-article-content h1,
.alert-article-content h2,
.alert-article-content h3,
.alert-article-content h4,
.alert-article-content h5,
.alert-article-content h6 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: #2c3e50;
  font-weight: 600;
}

.alert-article-content h2 {
  font-size: 1.5rem;
}

.alert-article-content h3 {
  font-size: 1.25rem;
}

.alert-article-content p {
  margin-bottom: 1.25rem;
}

.alert-article-content ul,
.alert-article-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.alert-article-content li {
  margin-bottom: 0.5rem;
}

.alert-article-content a {
  color: #5381c7;
  text-decoration: none;
  border-bottom: 1px solid rgba(83, 129, 199, 0.3);
  transition: border-color 0.2s ease;
}

.alert-article-content a:hover {
  color: #35527a;
  border-bottom-color: #35527a;
}

.alert-article-content blockquote {
  border-left: 3px solid #5381c7;
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  color: #6c757d;
  font-style: italic;
}

.alert-article-content code {
  background-color: #f4f6f9;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
  color: #e83e8c;
}

.alert-article-content pre {
  background-color: #f4f6f9;
  padding: 1.25rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.alert-article-content pre code {
  background-color: transparent;
  padding: 0;
  color: inherit;
}

.alert-article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1rem 0;
}

.alerts-sidebar {
  position: sticky;
  top: 1rem;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  overflow: hidden;
}

.alerts-sidebar-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid #eef1f5;
}

.alerts-sidebar-header h6 {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #8898aa;
}

.alerts-sidebar-list {
  max-height: calc(100vh - 180px);
  overflow-y: auto;
}

.alerts-sidebar-list::-webkit-scrollbar {
  width: 4px;
}

.alerts-sidebar-list::-webkit-scrollbar-track {
  background: transparent;
}

.alerts-sidebar-list::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 2px;
}

.alerts-sidebar-item {
  display: block;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid #f4f6f9;
  text-decoration: none;
  transition: all 0.2s ease;
  position: relative;
}

.alerts-sidebar-item:hover {
  background-color: #f8f9fc;
  text-decoration: none;
}

.alerts-sidebar-item:last-child {
  border-bottom: none;
}

.alerts-sidebar-item.active {
  background-color: #e8f4fd;
  border-left: 3px solid #5381c7;
}

.alerts-sidebar-item.active .alerts-sidebar-item-title {
  color: #35527a;
}

.alerts-sidebar-item.unread:not(.active) .alerts-sidebar-item-title::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #5381c7;
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
}

.alerts-sidebar-item-title {
  font-size: 0.9rem;
  font-weight: 500;
  color: #3d4852;
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.alerts-sidebar-item-date {
  font-size: 0.75rem;
  color: #8898aa;
}

@media (max-width: 991px) {
  .alert-article {
    padding: 1.5rem;
    border-radius: 0;
    box-shadow: none;
    margin: 0 -15px;
  }

  .alert-article-title {
    font-size: 1.5rem;
  }

  .alert-article-content {
    font-size: 1rem;
  }
}