Corp/backend/static/scss/components/_notifications.scss

// =============================================================================
// Notifications System Styles (SCSS)
// =============================================================================
// Стили для системы уведомлений: колокольчик, dropdown, toast, страница списка

// =============================================================================
// ПЕРЕМЕННЫЕ
// =============================================================================

// Колокольчик
$bell-dot-size: 16px;
$bell-dot-font-size: 9px;
$bell-dot-offset-top: -4px;
$bell-dot-offset-right: -6px;

// Dropdown
$notification-dropdown-width: 360px;
$notification-dropdown-max-height: 500px;
$notification-dropdown-border-radius: 12px;
$notification-dropdown-body-max-height: 300px;

// Элементы уведомлений
$notification-item-padding: 12px 16px;
$notification-icon-size: 36px;
$notification-unread-badge-size: 8px;

// Цвета
$notification-danger: #dc3545;
$notification-primary: #0d6efd;
$notification-unread-bg-light: #f0f7ff;
$notification-unread-bg-dark: #1a3a52;

// Переходы
$notification-transition: background-color 0.2s;

// =============================================================================
// КОЛОКОЛЬЧИК В NAVBAR
// =============================================================================

.bell-wrapper {
  position: relative;
  display: inline-block;
}

.bell-dot {
  position: absolute;
  top: $bell-dot-offset-top;
  right: $bell-dot-offset-right;
  min-width: $bell-dot-size;
  height: $bell-dot-size;
  padding: 0 4px;
  background-color: $notification-danger;
  color: white;
  border-radius: calc($bell-dot-size / 2);
  font-size: $bell-dot-font-size;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
}

// =============================================================================
// DROPDOWN МЕНЮ УВЕДОМЛЕНИЙ
// =============================================================================

.notification-dropdown-menu {
  position: fixed;
  width: $notification-dropdown-width;
  max-height: $notification-dropdown-max-height;
  background: white;
  border-radius: $notification-dropdown-border-radius;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  z-index: 10000;
  overflow: hidden;
  display: flex;
  flex-direction: column;

  [data-bs-theme="dark"] & {
    background: #2b3035;
    color: #dee2e6;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  }
}

// Заголовок
.notification-dropdown-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid #e9ecef;
  background: #f8f9fa;

  [data-bs-theme="dark"] & {
    background: #1f2327;
    border-bottom-color: #3d4349;
  }
}

// Тело с прокруткой
.notification-dropdown-body {
  flex: 1;
  overflow-y: auto;
  max-height: $notification-dropdown-body-max-height;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-gutter: stable both-edges;
  overscroll-behavior: contain;
  scrollbar-color: color-mix(in srgb, var(--bs-body-color), transparent 70%) transparent;

  &:hover {
    scrollbar-color: color-mix(in srgb, var(--bs-body-color), transparent 55%) transparent;
  }

  // Webkit scrollbar
  &::-webkit-scrollbar {
    width: 10px;
    height: 10px;
  }

  &::-webkit-scrollbar-track {
    background: transparent;
    margin-block: 0;
  }

  &::-webkit-scrollbar-thumb {
    background-color: color-mix(in srgb, var(--bs-body-color), transparent 75%);
    border-radius: 999px;
    border: 3px solid transparent;
    background-clip: padding-box;
  }

  &:hover::-webkit-scrollbar-thumb {
    background-color: color-mix(in srgb, var(--bs-body-color), transparent 55%);
  }

  // Темная тема scrollbar
  [data-bs-theme="dark"] & {
    scrollbar-color: color-mix(in srgb, var(--bs-body-color), transparent 78%) transparent;

    &:hover {
      scrollbar-color: color-mix(in srgb, var(--bs-body-color), transparent 60%) transparent;
    }

    &::-webkit-scrollbar-thumb {
      background-color: color-mix(in srgb, var(--bs-body-color), transparent 78%);
    }

    &:hover::-webkit-scrollbar-thumb {
      background-color: color-mix(in srgb, var(--bs-body-color), transparent 60%);
    }
  }

  // Скрытие scrollbar на тач-устройствах
  @media (hover: none), (pointer: coarse) {
    scrollbar-width: none;

    &::-webkit-scrollbar {
      display: none;
    }
  }
}

// Разделитель
.notification-dropdown-divider {
  height: 1px;
  background: #e9ecef;
  margin: 0;

  [data-bs-theme="dark"] & {
    background: #3d4349;
  }
}

// Секция
.notification-dropdown-section {
  padding: 8px 0;
}

// =============================================================================
// ЭЛЕМЕНТЫ СПИСКА УВЕДОМЛЕНИЙ
// =============================================================================

.notification-item {
  display: flex;
  gap: 12px;
  padding: $notification-item-padding;
  cursor: pointer;
  transition: $notification-transition;
  position: relative;
  border-bottom: 1px solid #e9ecef;

  &:last-child {
    border-bottom: none;
  }

  &:hover {
    background-color: #f8f9fa;
  }

  &.unread {
    background-color: $notification-unread-bg-light;

    &:hover {
      background-color: #e6f2ff;
    }
  }

  // Темная тема
  [data-bs-theme="dark"] & {
    border-bottom-color: #3d4349;

    &:hover {
      background-color: #343a40;
    }

    &.unread {
      background-color: $notification-unread-bg-dark;

      &:hover {
        background-color: #1e4260;
      }
    }
  }
}

// Иконка уведомления
.notification-icon {
  flex-shrink: 0;
  width: $notification-icon-size;
  height: $notification-icon-size;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

// Контент уведомления
.notification-content {
  flex: 1;
  min-width: 0;
}

.notification-title {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 4px;
  color: #212529;

  [data-bs-theme="dark"] & {
    color: #dee2e6;
  }
}

.notification-message {
  font-size: 13px;
  color: #6c757d;
  margin-bottom: 4px;

  [data-bs-theme="dark"] & {
    color: #adb5bd;
  }
}

.notification-time {
  font-size: 11px;
  color: #adb5bd;

  [data-bs-theme="dark"] & {
    color: #6c757d;
  }
}

// Значок непрочитанного
.notification-unread-badge {
  flex-shrink: 0;
  width: $notification-unread-badge-size;
  height: $notification-unread-badge-size;
  background-color: $notification-primary;
  border-radius: 50%;
  margin-left: 8px;
  align-self: center;
}

// =============================================================================
// ПУСТОЕ СОСТОЯНИЕ
// =============================================================================

.notification-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  color: #adb5bd;
  text-align: center;

  i {
    font-size: 48px;
    margin-bottom: 12px;
  }

  div {
    font-size: 14px;
  }

  [data-bs-theme="dark"] & {
    color: #6c757d;
  }
}

.extra-small {
  font-size: 0.7rem;
}

// =============================================================================
// TOAST УВЕДОМЛЕНИЯ (FALLBACK)
// =============================================================================

.toast-container {
  z-index: 9999;
}

.toast {
  min-width: 300px;
}

// =============================================================================
// СТРАНИЦА СПИСКА УВЕДОМЛЕНИЙ
// =============================================================================

// Карточки уведомлений - прочитанные
.notification-read {
  opacity: 0.7;

  .card {
    background-color: #f8f9fa;
  }

  [data-bs-theme="dark"] & {
    opacity: 0.65;

    .card {
      background-color: #1f2327 !important;
      border-color: #3d4349 !important;
    }
  }
}

// Карточки уведомлений - непрочитанные
.notification-unread {
  border-left: 4px solid var(--bs-primary);

  .card {
    background-color: #ffffff;
  }

  [data-bs-theme="dark"] .card {
    background-color: #2b3035;
    border-color: #3d4349;
  }
}

// Иконки категорий (для страницы списка)
.notification-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

// =============================================================================
// ТЕМНАЯ ТЕМА ДЛЯ СТРАНИЦЫ СПИСКА
// =============================================================================

[data-bs-theme="dark"] {
  .card {
    background-color: #2b3035;
    border-color: #3d4349;
    color: #dee2e6;
  }

  .card-body {
    color: #dee2e6;
  }

  .text-muted {
    color: #adb5bd !important;
  }

  // Кнопки
  .btn-outline-primary {
    color: #6ea8fe;
    border-color: #6ea8fe;

    &:hover {
      background-color: #0d6efd;
      border-color: #0d6efd;
      color: #fff;
    }
  }

  .btn-outline-secondary {
    color: #adb5bd;
    border-color: #6c757d;

    &:hover {
      background-color: #6c757d;
      border-color: #6c757d;
      color: #fff;
    }
  }

  .btn-outline-danger {
    color: #ea868f;
    border-color: #ea868f;

    &:hover {
      background-color: #dc3545;
      border-color: #dc3545;
      color: #fff;
    }
  }

  // Формы
  .form-select,
  .form-control {
    background-color: #1f2327;
    border-color: #3d4349;
    color: #dee2e6;

    &:focus {
      background-color: #2b3035;
      border-color: #6ea8fe;
      color: #dee2e6;
    }
  }

  // Пагинация
  .pagination {
    .page-link {
      background-color: #2b3035;
      border-color: #3d4349;
      color: #6ea8fe;

      &:hover {
        background-color: #343a40;
        border-color: #3d4349;
        color: #9ec5fe;
      }
    }

    .page-item.active .page-link {
      background-color: #0d6efd;
      border-color: #0d6efd;
      color: #fff;
    }

    .page-item.disabled .page-link {
      background-color: #1f2327;
      border-color: #3d4349;
      color: #6c757d;
    }
  }
}