/*
 * مكونات متخصصة محسنة لموقع حراج نجد الجزيرة
 * يشمل المحادثات، الإشعارات، النماذج المتقدمة، والمكونات التفاعلية
 */

/* =============================================
   نظام المحادثات المحسن
   ============================================= */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: var(--bg-surface);
  backdrop-filter: blur(var(--blur-lg));
  border-bottom: 1px solid var(--border-primary);
}

.chat-user-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid var(--border-primary);
}

.chat-user-details h4 {
  margin: 0;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
}

.chat-status {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin: 0;
}

.chat-status.online {
  color: var(--color-success);
}

.chat-actions {
  display: flex;
  gap: var(--space-2);
}

.chat-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-primary);
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.chat-action-btn:hover {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

.chat-messages {
  flex: 1;
  padding: var(--space-4);
  overflow-y: auto;
  scroll-behavior: smooth;
  background: var(--gradient-hero);
}

.message-group {
  margin-bottom: var(--space-6);
}

.message-date {
  text-align: center;
  color: var(--text-tertiary);
  font-size: var(--text-xs);
  margin-bottom: var(--space-4);
  position: relative;
}

.message-date::before,
.message-date::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 30%;
  height: 1px;
  background: var(--border-secondary);
}

.message-date::before {
  left: 0;
}

.message-date::after {
  right: 0;
}

.message-row {
  display: flex;
  margin-bottom: var(--space-3);
  align-items: flex-end;
  gap: var(--space-2);
}

.message-row.sent {
  justify-content: flex-end;
}

.message-row.received {
  justify-content: flex-start;
}

.message-bubble {
  max-width: 70%;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  position: relative;
  word-wrap: break-word;
  animation: slideInMessage 0.3s ease-out;
}

.message-row.sent .message-bubble {
  background: var(--gradient-primary);
  color: white;
  border-bottom-left-radius: var(--radius-sm);
}

.message-row.received .message-bubble {
  background: var(--bg-surface);
  backdrop-filter: blur(var(--blur-md));
  border: 1px solid var(--border-primary);
  color: var(--text-primary);
  border-bottom-right-radius: var(--radius-sm);
}

.message-content {
  line-height: 1.5;
  margin-bottom: var(--space-1);
}

.message-time {
  font-size: var(--text-xs);
  opacity: 0.7;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.message-status {
  width: 12px;
  height: 12px;
  opacity: 0.6;
}

.message-attachments {
  margin-top: var(--space-2);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: var(--space-2);
}

.message-image {
  width: 100%;
  max-width: 200px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
}

.message-image:hover {
  transform: scale(1.02);
}

.message-file {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.message-file:hover {
  background: var(--bg-secondary);
  transform: translateY(-1px);
}

.message-file-icon {
  width: 24px;
  height: 24px;
  opacity: 0.7;
}

.message-file-info {
  flex: 1;
  min-width: 0;
}

.message-file-name {
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.message-file-size {
  font-size: var(--text-xs);
  opacity: 0.7;
}

.typing-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  max-width: fit-content;
  opacity: 0;
  animation: fadeIn 0.3s ease-out forwards;
}

.typing-dots {
  display: flex;
  gap: var(--space-1);
}

.typing-dot {
  width: 6px;
  height: 6px;
  background: var(--text-tertiary);
  border-radius: var(--radius-full);
  animation: typingBounce 1.5s infinite ease-in-out;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

.chat-input-container {
  padding: var(--space-4) var(--space-6);
  background: var(--bg-surface);
  backdrop-filter: blur(var(--blur-lg));
  border-top: 1px solid var(--border-primary);
}

.chat-input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: var(--space-3);
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-2);
  transition: var(--transition-fast);
}

.chat-input-wrapper:focus-within {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.chat-input {
  flex: 1;
  min-height: 40px;
  max-height: 120px;
  padding: var(--space-2) var(--space-3);
  border: none;
  background: transparent;
  color: var(--text-primary);
  resize: none;
  outline: none;
  font-family: inherit;
  line-height: 1.4;
}

.chat-input::placeholder {
  color: var(--text-tertiary);
}

.chat-input-actions {
  display: flex;
  gap: var(--space-1);
}

.chat-input-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition-fast);
}

.chat-input-btn:hover {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.chat-send-btn {
  background: var(--gradient-primary) !important;
  color: white !important;
}

.chat-send-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.chat-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* =============================================
   قائمة المحادثات
   ============================================= */
.conversations-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.conversation-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
  position: relative;
}

.conversation-item:hover {
  background: var(--bg-secondary);
  border-color: var(--border-primary);
  transform: translateY(-1px);
}

.conversation-item.unread {
  border-left: 3px solid var(--color-primary-500);
}

.conversation-item.unread::after {
  content: '';
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  width: 8px;
  height: 8px;
  background: var(--color-primary-500);
  border-radius: var(--radius-full);
}

.conversation-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid var(--border-primary);
  flex-shrink: 0;
}

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

.conversation-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-1);
}

.conversation-name {
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.conversation-time {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.conversation-preview {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.conversation-item.unread .conversation-preview {
  font-weight: 500;
}

/* =============================================
   نظام الإشعارات المحسن
   ============================================= */
.notifications-container {
  position: relative;
}

.notifications-trigger {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.notifications-trigger:hover {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

.notifications-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 20px;
  height: 20px;
  background: var(--color-error);
  color: white;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: notificationPulse 2s infinite;
}

.notifications-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  width: 320px;
  max-height: 400px;
  background: var(--bg-surface);
  backdrop-filter: blur(var(--blur-lg));
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
  transition: var(--transition-normal);
  z-index: 100;
}

.notifications-dropdown.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.notifications-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-secondary);
}

.notifications-title {
  font-weight: 600;
  margin: 0;
  color: var(--text-primary);
}

.notifications-actions {
  display: flex;
  gap: var(--space-2);
}

.notifications-action {
  font-size: var(--text-xs);
  color: var(--color-primary-600);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.notifications-action:hover {
  color: var(--color-primary-700);
}

.notifications-list {
  max-height: 300px;
  overflow-y: auto;
}

.notification-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-tertiary);
  transition: var(--transition-fast);
  position: relative;
}

.notification-item:hover {
  background: var(--bg-secondary);
}

.notification-item.unread {
  background: var(--bg-info);
}

.notification-item.unread::after {
  content: '';
  position: absolute;
  top: 50%;
  right: var(--space-3);
  width: 6px;
  height: 6px;
  background: var(--color-primary-500);
  border-radius: var(--radius-full);
  transform: translateY(-50%);
}

.notification-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: var(--text-lg);
}

.notification-icon.success {
  background: var(--bg-success);
  color: var(--color-success);
}

.notification-icon.warning {
  background: var(--bg-warning);
  color: var(--color-warning);
}

.notification-icon.error {
  background: var(--bg-error);
  color: var(--color-error);
}

.notification-icon.info {
  background: var(--bg-info);
  color: var(--color-info);
}

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

.notification-title {
  font-weight: 600;
  margin: 0 0 var(--space-1);
  color: var(--text-primary);
  font-size: var(--text-sm);
}

.notification-message {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin: 0 0 var(--space-1);
  line-height: 1.4;
}

.notification-time {
  color: var(--text-tertiary);
  font-size: var(--text-xs);
  margin: 0;
}

.notifications-empty {
  padding: var(--space-8) var(--space-5);
  text-align: center;
  color: var(--text-tertiary);
}

.notifications-empty-icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-3);
  opacity: 0.5;
}

/* =============================================
   مكونات البحث المتقدم
   ============================================= */
.search-advanced {
  background: var(--bg-surface);
  backdrop-filter: blur(var(--blur-lg));
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.search-advanced-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--border-secondary);
  margin-bottom: var(--space-4);
}

.search-advanced-title {
  font-weight: 600;
  margin: 0;
  color: var(--text-primary);
}

.search-advanced-icon {
  transition: var(--transition-fast);
}

.search-advanced.expanded .search-advanced-icon {
  transform: rotate(180deg);
}

.search-advanced-content {
  max-height: 0;
  overflow: hidden;
  transition: var(--transition-normal);
}

.search-advanced.expanded .search-advanced-content {
  max-height: 500px;
}

.search-filters {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .search-filters {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .search-filters {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.search-filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.search-filter-label {
  font-weight: 500;
  color: var(--text-primary);
  font-size: var(--text-sm);
}

.price-range {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-2);
  align-items: center;
}

.price-separator {
  color: var(--text-tertiary);
  font-weight: 500;
}

.search-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.search-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--bg-info);
  color: var(--color-info);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  border: 1px solid var(--color-info);
}

.search-tag-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
}

.search-tag-remove:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* =============================================
   مكونات التحميل والتقدم
   ============================================= */
.loading-spinner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
}

.loading-spinner.large {
  width: 48px;
  height: 48px;
}

.spinner {
  width: 100%;
  height: 100%;
  border: 2px solid var(--border-secondary);
  border-top: 2px solid var(--color-primary-500);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(var(--blur-sm));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-fast);
}

.loading-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.loading-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-8);
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-primary);
}

.loading-text {
  color: var(--text-primary);
  font-weight: 500;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: progressShimmer 2s infinite;
}

/* =============================================
   مكونات الوسائط المتعددة
   ============================================= */
.media-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.media-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-surface);
  aspect-ratio: 1;
  cursor: pointer;
  transition: var(--transition-fast);
}

.media-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.media-item img,
.media-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: var(--space-3);
  opacity: 0;
  transition: var(--transition-fast);
}

.media-item:hover .media-overlay {
  opacity: 1;
}

.media-type {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: var(--radius-lg);
  color: white;
  font-size: var(--text-lg);
}

.media-actions {
  display: flex;
  gap: var(--space-2);
}

.media-action {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: var(--radius-lg);
  color: white;
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.media-action:hover {
  background: var(--gradient-primary);
}

/* =============================================
   مودال (Modal) محسن
   ============================================= */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(var(--blur-sm));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
  padding: var(--space-4);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  background: var(--bg-surface);
  backdrop-filter: blur(var(--blur-lg));
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transform: scale(0.9);
  transition: var(--transition-normal);
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-secondary);
}

.modal-title {
  font-weight: 600;
  margin: 0;
  color: var(--text-primary);
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-6);
  overflow-y: auto;
  max-height: calc(90vh - 120px);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-6);
  border-top: 1px solid var(--border-secondary);
}

/* =============================================
   الرسوم المتحركة
   ============================================= */
@keyframes slideInMessage {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes typingBounce {
  0%, 60%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-10px);
  }
}

@keyframes notificationPulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

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

@keyframes progressShimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* =============================================
   تحسينات للجوال
   ============================================= */
@media (max-width: 768px) {
  .chat-container {
    height: calc(100vh - 120px);
  }
  
  .message-bubble {
    max-width: 85%;
  }
  
  .notifications-dropdown {
    width: calc(100vw - 2rem);
    right: var(--space-4);
    left: var(--space-4);
  }
  
  .search-advanced {
    padding: var(--space-4);
  }
  
  .search-filters {
    grid-template-columns: 1fr;
  }
  
  .media-gallery {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-2);
  }
  
  .modal-content {
    max-width: none;
    margin: var(--space-4);
    max-height: calc(100vh - 2rem);
  }
  
  .modal-body {
    max-height: calc(100vh - 200px);
  }
}

/* =============================================
   تحسينات الأداء
   ============================================= */
.chat-messages,
.notifications-list {
  will-change: scroll-position;
}

.message-bubble,
.notification-item,
.conversation-item {
  will-change: transform;
}

/* تحسين الانتقالات للأجهزة البطيئة */
@media (max-width: 480px) {
  .transition-normal {
    transition-duration: 150ms;
  }
  
  .transition-slow {
    transition-duration: 200ms;
  }
}

/* تقليل التأثيرات للمستخدمين الذين يفضلون ذلك */
@media (prefers-reduced-motion: reduce) {
  .message-bubble,
  .notification-item,
  .modal-content {
    animation: none;
  }
  
  .typing-dot {
    animation: none;
  }
  
  .progress-fill::after {
    animation: none;
  }
}