/**
 * User Conversations Feature CSS
 * Pluggable styling for end-user conversations/messaging interface
 * Uses base.css variables and follows design system
 */

/* ========== CONVERSATIONS CONTAINER ========== */
.user-conversations-container {
  padding: 0px;
  max-width: 1400px;
  margin: 0 auto;
}

.user-conversations-header {
  margin-bottom: var(--space-6);
}

.user-conversations-header h1 {
  font-size: 28px;
  font-weight: 700;
  color: #111827;
  margin: 0 0 var(--space-2) 0;
}

.user-conversations-header p {
  font-size: 14px;
  color: #6B7280;
  margin: 0;
}

/* ========== SUB-NAVIGATION TABS ========== */
.user-conversations-tabs {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  border-bottom: 1px solid #E5E7EB;
  padding-bottom: var(--space-2);
  flex-wrap: wrap;
}

.user-conversations-tab {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: #6B7280;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.user-conversations-tab:hover {
  color: #111827;
  background: #F9FAFB;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.user-conversations-tab.active {
  color: #3B82F6;
  border-bottom-color: #3B82F6;
}

.tab-badge {
  background: #3B82F6;
  color: white;
  border-radius: var(--radius-full);
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  min-width: 20px;
  text-align: center;
}

/* ========== CONVERSATIONS CONTENT ========== */
.user-conversations-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ========== FILTERS ========== */
.conversations-filters {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
}

.filter-search {
  flex: 1;
  min-width: 250px;
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: white;
  border: 1px solid #D1D5DB;
  border-radius: var(--radius-md);
}

.filter-search i {
  color: #9CA3AF;
  flex-shrink: 0;
}

.filter-search input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 14px;
  color: #111827;
}

.filter-search input::placeholder {
  color: #9CA3AF;
}

.filter-actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.filter-select {
  padding: var(--space-2) var(--space-3);
  border: 1px solid #D1D5DB;
  border-radius: var(--radius-md);
  font-size: 14px;
  color: #111827;
  background: white;
  cursor: pointer;
}

.filter-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 14px;
  color: #374151;
  cursor: pointer;
}

.filter-checkbox input[type="checkbox"] {
  cursor: pointer;
}

/* ========== LOADING STATE ========== */
.conversations-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12);
}

.conversations-loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid #E5E7EB;
  border-top-color: #3B82F6;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.conversations-loading p {
  margin-top: var(--space-4);
  color: #6B7280;
  font-size: 14px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ========== CONVERSATIONS LIST ========== */
.conversations-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* ========== CONVERSATION CARD ========== */
.conversation-card {
  background: white;
  border: 1px solid #E5E7EB;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.conversation-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border-color: #3B82F6;
}

.conversation-card.active {
  border-color: #3B82F6;
  background: #EFF6FF;
}

.conversation-card.archived {
  opacity: 0.7;
}

.conversation-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.conversation-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
}

.conversation-card-info {
  flex: 1;
  min-width: 0;
}

.conversation-card-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 16px;
  font-weight: 600;
  color: #111827;
  margin-bottom: var(--space-1);
}

.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #DBEAFE;
  color: #1E40AF;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.human-badge {
  display: inline-flex;
  align-items: center;
  background: #D1FAE5;
  color: #065F46;
  padding: 4px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
}

.archived-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #F3F4F6;
  color: #6B7280;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
}

.conversation-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  color: #6B7280;
}

.meta-separator {
  color: #D1D5DB;
}

.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.status-badge.reply_received {
  background: #D1FAE5;
  color: #065F46;
}

.status-badge.pending_reply {
  background: #FEF3C7;
  color: #92400E;
}

.status-badge.active {
  background: #DBEAFE;
  color: #1E40AF;
}

.status-badge.pending {
  background: #FEF3C7;
  color: #92400E;
}

.status-badge.accepted,
.status-badge.in_progress {
  background: #DBEAFE;
  color: #1E40AF;
}

.status-badge.completed {
  background: #D1FAE5;
  color: #065F46;
}

.status-badge.closed {
  background: #F3F4F6;
  color: #6B7280;
}

.conversation-card-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.unread-badge {
  background: #3B82F6;
  color: white;
  border-radius: var(--radius-full);
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 700;
  min-width: 20px;
  text-align: center;
}

/* Icon button for conversations - scoped to avoid conflicts with card buttons */
.user-conversations-container .btn-icon,
.conversation-card .btn-icon,
.conversation-detail .btn-icon {
  background: transparent;
  border: none;
  color: #6B7280;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-conversations-container .btn-icon:hover,
.conversation-card .btn-icon:hover,
.conversation-detail .btn-icon:hover {
  background: #F3F4F6;
  color: #111827;
}

.conversation-card-preview {
  font-size: 14px;
  color: #6B7280;
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.message-sender {
  font-weight: 600;
  color: #374151;
}

/* ========== REQUEST CARD ========== */
.request-card {
  background: white;
  border: 1px solid #E5E7EB;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.request-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border-color: #3B82F6;
}

.request-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.request-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #EFF6FF;
  color: #3B82F6;
  flex-shrink: 0;
}

.request-card-info {
  flex: 1;
  min-width: 0;
}

.request-card-title {
  font-size: 16px;
  font-weight: 600;
  color: #111827;
  margin-bottom: var(--space-1);
}

.request-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  color: #6B7280;
}

.request-type-badge {
  background: #F3F4F6;
  color: #374151;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
}

.request-card-status {
  flex-shrink: 0;
}

.request-card-body {
  margin-bottom: var(--space-3);
}

.request-card-description {
  font-size: 14px;
  color: #6B7280;
  line-height: 1.5;
  margin-bottom: var(--space-2);
}

.request-card-routing {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  color: #6B7280;
  padding: var(--space-2) var(--space-3);
  background: #F9FAFB;
  border-radius: var(--radius-md);
}

.request-card-routing strong {
  color: #111827;
}

.request-card-actions {
  display: flex;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid #E5E7EB;
}

/* ========== LOAD MORE ========== */
.conversations-load-more {
  display: flex;
  justify-content: center;
  padding: var(--space-4) 0;
}

/* ========== EMPTY STATE ========== */
.conversations-empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
}

.empty-icon {
  width: 64px;
  height: 64px;
  color: #D1D5DB;
  margin: 0 auto var(--space-4);
}

.conversations-empty-state h3 {
  font-size: 18px;
  font-weight: 600;
  color: #111827;
  margin-bottom: var(--space-2);
}

.conversations-empty-state p {
  font-size: 14px;
  color: #6B7280;
  margin-bottom: var(--space-6);
}

/* ========== CONVERSATION DETAIL PANEL ========== */
.conversation-detail-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 450px;
  height: 100vh;
  background: white;
  border-left: 1px solid #E5E7EB;
  display: flex;
  flex-direction: column;
  z-index: 100;
  box-shadow: -4px 0 12px rgba(0, 0, 0, 0.08);
}

.conversation-detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid #E5E7EB;
  background: white;
}

.conversation-detail-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: 1;
  min-width: 0;
}

.conversation-detail-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: #111827;
  margin: 0;
}

.conversation-detail-info p {
  font-size: 13px;
  color: #6B7280;
  margin: 0;
}

.conversation-detail-actions {
  display: flex;
  gap: var(--space-1);
}

/* ========== MESSAGES CONTAINER ========== */
.conversation-messages-container {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
  background: #F9FAFB;
}

.messages-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.messages-loading p {
  margin-top: var(--space-4);
  color: #6B7280;
  font-size: 14px;
}

.conversation-messages {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.conversation-message {
  display: flex;
  flex-direction: column;
}

.message-wrapper {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
}

.conversation-message.message-user .message-wrapper {
  flex-direction: row-reverse;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 14px;
  flex-shrink: 0;
}

.message-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  max-width: 75%;
}

.conversation-message.message-user .message-content {
  align-items: flex-end;
}

.message-bubble {
  background: white;
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  font-size: 14px;
  color: #111827;
  line-height: 1.5;
  word-wrap: break-word;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.conversation-message.message-user .message-bubble {
  background: #3B82F6;
  color: white;
}

.message-time {
  font-size: 11px;
  color: #9CA3AF;
  display: flex;
  align-items: center;
  gap: 4px;
}

.messages-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: #9CA3AF;
}

.messages-empty-state p {
  margin-top: var(--space-2);
  font-size: 14px;
}

/* ========== MESSAGE INPUT ========== */
.conversation-message-input {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-4);
  border-top: 1px solid #E5E7EB;
  background: white;
}

.conversation-message-input textarea {
  flex: 1;
  padding: var(--space-3);
  border: 1px solid #D1D5DB;
  border-radius: var(--radius-md);
  font-size: 14px;
  color: #111827;
  resize: none;
  max-height: 120px;
  font-family: inherit;
}

.conversation-message-input textarea:focus {
  outline: none;
  border-color: #3B82F6;
}

.conversation-archived-notice {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4);
  background: #FEF3C7;
  border-top: 1px solid #FDE68A;
  font-size: 13px;
  color: #92400E;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .conversation-detail-panel {
    width: 100%;
    max-width: 500px;
  }
}

@media (max-width: 768px) {
  .user-conversations-container {
    padding: var(--space-4);
  }
  
  .user-conversations-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .user-conversations-tab {
    white-space: nowrap;
  }
  
  .conversations-filters {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-search {
    min-width: 100%;
  }
  
  .conversation-detail-panel {
    width: 100%;
  }
  
  .message-content {
    max-width: 85%;
  }
}