/**
 * Little Learner Hub — Member Messaging Center + Notification Bell
 * Uses tokens from llh-design-tokens.css. Loaded after styles.css so it can
 * safely override without needing !important.
 */

/* ---------- Nav unread badge ---------- */
.nav-unread-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  margin-left: auto;
  border-radius: 999px;
  background: var(--llh-danger, #c56b6b);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  line-height: 20px;
}

/* ---------- Notification bell ---------- */
.notification-bell-wrap {
  position: relative;
  display: inline-flex;
}

.notification-bell-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--llh-line, #e4e1ea);
  background: var(--llh-surface, #fff);
  cursor: pointer;
  color: var(--llh-ink, #2a2a35);
}

.notification-bell-btn svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.notification-bell-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--llh-danger, #c56b6b);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  border: 2px solid var(--llh-surface, #fff);
}

.notification-bell-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: min(360px, 90vw);
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  background: var(--llh-surface, #fff);
  border-radius: var(--llh-radius-md, 12px);
  box-shadow: var(--llh-shadow-modal, 0 18px 48px rgba(42, 42, 53, 0.12));
  border: 1px solid var(--llh-line, #e4e1ea);
  z-index: 60;
  overflow: hidden;
}

.notification-bell-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--llh-line, #e4e1ea);
}

.notification-mark-all-btn {
  font-size: 12px;
  padding: 6px 10px;
}

.notification-bell-list {
  overflow-y: auto;
  flex: 1;
  max-height: 50vh;
}

.notification-bell-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  border: none;
  background: transparent;
  border-bottom: 1px solid var(--llh-line, #e4e1ea);
  cursor: pointer;
}

.notification-bell-item:hover {
  background: var(--llh-primary-soft, #ede8f7);
}

.notification-bell-item.unread {
  background: var(--llh-secondary-soft, #e5f1f8);
}

.notification-item-icon {
  font-size: 18px;
  line-height: 1;
  flex-shrink: 0;
}

.notification-item-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.notification-item-body strong {
  font-size: 13.5px;
  color: var(--llh-ink, #2a2a35);
}

.notification-item-body span {
  font-size: 12.5px;
  color: var(--llh-muted, #6b6b7b);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.notification-item-body small {
  font-size: 11px;
  color: var(--llh-muted, #6b6b7b);
}

.notification-empty {
  padding: 24px 14px;
  text-align: center;
  color: var(--llh-muted, #6b6b7b);
  font-size: 13px;
}

.notification-bell-panel-footer {
  padding: 10px 14px;
  border-top: 1px solid var(--llh-line, #e4e1ea);
  text-align: center;
}

/* ---------- Messages page ---------- */
.messages-page-shell {
  max-width: 780px;
}

.messages-loading {
  padding: 32px;
  text-align: center;
  color: var(--llh-muted, #6b6b7b);
}

.messages-tabs {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--llh-line, #e4e1ea);
  margin: 18px 0 20px;
  flex-wrap: wrap;
}

.messages-tab {
  position: relative;
  padding: 10px 14px;
  border: none;
  background: transparent;
  font-weight: 600;
  font-size: 14px;
  color: var(--llh-muted, #6b6b7b);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.messages-tab.active {
  color: var(--llh-primary, #7b6bb5);
  border-bottom-color: var(--llh-primary, #7b6bb5);
}

.messages-tab-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--llh-danger, #c56b6b);
  margin-left: 4px;
  vertical-align: middle;
}

.messages-tab-panel {
  background: var(--llh-surface, #fff);
  border-radius: var(--llh-radius-md, 12px);
  border: 1px solid var(--llh-line, #e4e1ea);
  padding: 18px;
}

.messages-empty {
  color: var(--llh-muted, #6b6b7b);
  padding: 24px 8px;
  text-align: center;
}

.messages-conversation {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.messages-thread {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 4px;
}

.message-bubble {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: var(--llh-radius-md, 12px);
  background: var(--llh-primary-soft, #ede8f7);
}

.message-bubble-mine {
  align-self: flex-end;
  background: var(--llh-secondary-soft, #e5f1f8);
}

.message-bubble-admin {
  align-self: flex-start;
}

.message-bubble-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 11px;
  color: var(--llh-muted, #6b6b7b);
  margin-bottom: 4px;
}

.message-bubble-body {
  font-size: 14px;
  color: var(--llh-ink, #2a2a35);
  line-height: 1.45;
  word-break: break-word;
}

.messages-reply-form {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.messages-reply-form textarea {
  flex: 1;
  resize: vertical;
  min-height: 44px;
  border-radius: var(--llh-radius-sm, 8px);
  border: 1px solid var(--llh-line, #e4e1ea);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
}

.messages-updates-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.messages-update-item {
  display: block;
  width: 100%;
  text-align: left;
  border: 1px solid var(--llh-line, #e4e1ea);
  border-radius: var(--llh-radius-sm, 8px);
  padding: 12px 14px;
  background: var(--llh-surface, #fff);
  cursor: pointer;
}

.messages-update-item.unread {
  border-color: var(--llh-primary, #7b6bb5);
  background: var(--llh-primary-soft, #ede8f7);
}

.messages-update-item-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
}

.messages-update-item p {
  margin: 0;
  color: var(--llh-muted, #6b6b7b);
  font-size: 13.5px;
}

/* ---------- Notification preferences ---------- */
.messages-preferences {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.notification-pref-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  border-radius: var(--llh-radius-md, 12px);
  border: 1px solid var(--llh-line, #e4e1ea);
  background: var(--llh-bg, #f7f6f9);
}

.notification-pref-copy strong {
  display: block;
  margin-bottom: 4px;
  font-size: 14.5px;
}

.notification-pref-copy p {
  margin: 0;
  font-size: 13px;
  color: var(--llh-muted, #6b6b7b);
}

.notification-pref-message {
  font-size: 13px;
  color: var(--llh-primary-deep, #5a4d8a);
}

.notification-pref-note {
  font-size: 12px;
  color: var(--llh-muted, #6b6b7b);
}

.toggle-switch {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
  cursor: pointer;
}

.toggle-switch input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.toggle-switch-track {
  width: 46px;
  height: 26px;
  border-radius: 999px;
  background: var(--llh-line, #e4e1ea);
  display: inline-flex;
  align-items: center;
  padding: 3px;
  transition: background 0.15s ease;
}

.toggle-switch-thumb {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform 0.15s ease;
}

.toggle-switch input:checked + .toggle-switch-track {
  background: var(--llh-success, #5db89a);
}

.toggle-switch input:checked + .toggle-switch-track .toggle-switch-thumb {
  transform: translateX(20px);
}

.toggle-switch input:disabled + .toggle-switch-track {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------- Admin: Messaging Center ---------- */
.admin-compose-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 560px;
}

.admin-compose-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--llh-ink, #2a2a35);
}

.admin-compose-form input,
.admin-compose-form select,
.admin-compose-form textarea {
  font-family: inherit;
  font-size: 14px;
  font-weight: 400;
  padding: 10px 12px;
  border-radius: var(--llh-radius-sm, 8px);
  border: 1px solid var(--llh-line, #e4e1ea);
}

.admin-compose-actions {
  display: flex;
  gap: 10px;
}

.admin-compose-message {
  min-height: 18px;
  font-size: 13px;
}

.admin-user-picker {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-user-picker-results {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 240px;
  overflow-y: auto;
  border: 1px solid var(--llh-line, #e4e1ea);
  border-radius: var(--llh-radius-sm, 8px);
  background: var(--llh-surface, #fff);
  padding: 6px;
}

.admin-user-picker-option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  padding: 8px 10px;
  cursor: pointer;
}

.admin-user-picker-option:hover,
.admin-user-picker-option.is-selected {
  background: var(--llh-primary-soft, #ede8f7);
  border-color: var(--llh-primary, #7b6bb5);
}

.admin-user-picker-option-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--llh-ink, #2a2a35);
}

.admin-user-picker-option-meta,
.admin-user-picker-empty,
.admin-user-picker-selected {
  font-size: 12px;
  font-weight: 400;
  color: var(--llh-muted, #6b6b7b);
}

.admin-user-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.admin-user-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--llh-line, #e4e1ea);
  border-radius: 999px;
  background: var(--llh-bg, #f7f6f9);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 12px;
}

.admin-user-chip strong {
  font-size: 12px;
}

.admin-conversations-toolbar {
  margin: 0 0 14px;
  max-width: 420px;
}

.admin-conversations-search-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
}

.admin-conversations-search {
  width: 100%;
  font: inherit;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--llh-line, #e4e1ea);
}

.admin-conversation-email {
  font-size: 11px !important;
}

.admin-conversation-preview {
  font-size: 12px;
}

.admin-conversations-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 18px;
  min-height: 420px;
}

.admin-conversations-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-right: 1px solid var(--llh-line, #e4e1ea);
  padding-right: 14px;
  overflow-y: auto;
  max-height: 560px;
}

.admin-conversation-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-align: left;
  padding: 10px 12px;
  border-radius: var(--llh-radius-sm, 8px);
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  position: relative;
}

.admin-conversation-item:hover {
  background: var(--llh-bg, #f7f6f9);
}

.admin-conversation-item.active {
  border-color: var(--llh-primary, #7b6bb5);
  background: var(--llh-primary-soft, #ede8f7);
}

.admin-conversation-item strong {
  font-size: 13.5px;
}

.admin-conversation-item span {
  font-size: 12px;
  color: var(--llh-muted, #6b6b7b);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-conversation-unread {
  position: absolute;
  top: 10px;
  right: 10px;
  min-width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--llh-danger, #c56b6b);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

.admin-conversation-thread {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

@media (max-width: 760px) {
  .admin-conversations-layout {
    grid-template-columns: 1fr;
  }
  .admin-conversations-list {
    border-right: none;
    border-bottom: 1px solid var(--llh-line, #e4e1ea);
    padding-right: 0;
    padding-bottom: 10px;
    max-height: 220px;
  }
}

/* ---------- Admin message templates ---------- */
.admin-message-templates {
  margin: 0 0 16px;
  padding: 12px 14px;
  border: 1px solid var(--llh-line, #e4e1ea);
  border-radius: var(--llh-radius-md, 12px);
  background: var(--llh-surface-soft, #faf9fc);
}

.admin-message-templates-label {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--llh-muted, #6b6a75);
}

.admin-message-templates-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.admin-message-template-btn {
  font-size: 13px;
}

/* ---------- Admin conversation user profile ---------- */
.admin-conversation-profile {
  margin: 0 0 12px;
  padding: 12px 14px;
  border: 1px solid var(--llh-line, #e4e1ea);
  border-radius: var(--llh-radius-md, 12px);
  background: var(--llh-surface-soft, #faf9fc);
}

.admin-conversation-profile-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.admin-conversation-plan-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  background: var(--llh-accent-soft, #efeaf8);
  color: var(--llh-ink, #2a2a35);
}

.admin-conversation-profile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 14px;
  margin: 0;
}

.admin-conversation-profile-grid dt {
  margin: 0;
  font-size: 11px;
  color: var(--llh-muted, #6b6a75);
  font-weight: 600;
}

.admin-conversation-profile-grid dd {
  margin: 2px 0 0;
  font-size: 13px;
}

.message-support-btn {
  white-space: nowrap;
}

.messages-empty-start {
  text-align: center;
  padding: 28px 16px;
}

.messages-empty-start p {
  margin: 0 0 6px;
}

/* ---------- Lesson plan feedback shortcut ---------- */
.lesson-workspace-feedback {
  margin: 18px 0 8px;
  padding: 14px 16px;
  border-top: 1px solid var(--llh-line, #e4e1ea);
}

.lesson-workspace-feedback-label {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 600;
}

.lesson-workspace-feedback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.lesson-workspace-feedback-status {
  margin: 10px 0 0;
}

@media (max-width: 640px) {
  .admin-conversation-profile-grid {
    grid-template-columns: 1fr;
  }
  .message-support-btn {
    display: none;
  }
}