/* WhatsApp Web Replica Stylesheet */
:root {
  --wa-bg-dark: #0b141a;
  --wa-panel-dark: #111b21;
  --wa-header-dark: #202c33;
  --wa-input-dark: #2a3942;
  --wa-outgoing: #005c4b;
  --wa-incoming: #202c33;
  --wa-teal: #00a884;
  --wa-teal-hover: #02906f;
  --wa-blue-tick: #53bdeb;
  --wa-text-primary: #e9edef;
  --wa-text-secondary: #8696a0;
  --wa-border: #222d34;
  --wa-active-chat: #2a3942;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: #0c1317;
  color: var(--wa-text-primary);
  height: 100vh;
  display: flex;
  overflow: hidden;
}

/* App Container */
.app-container {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  background-color: var(--wa-bg-dark);
}

/* Sticky Top Global Content Filter Bar */
.top-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--wa-header-dark);
  border-bottom: 1px solid var(--wa-border);
  padding: 0 16px;
  height: 52px;
  z-index: 50;
  flex-shrink: 0;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--wa-teal);
}

.brand-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--wa-text-primary);
  letter-spacing: 0.2px;
}

.brand-badge {
  font-size: 11px;
  background-color: rgba(0, 168, 132, 0.2);
  color: var(--wa-teal);
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 600;
}

/* Filter Navigation Tabs */
.filter-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
}

.filter-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--wa-text-secondary);
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 20px;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.filter-tab:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--wa-text-primary);
}

.filter-tab.active {
  background-color: rgba(0, 168, 132, 0.2);
  color: var(--wa-teal);
  font-weight: 600;
}

.tab-badge {
  font-size: 11px;
  background-color: var(--wa-input-dark);
  color: var(--wa-text-secondary);
  padding: 1px 6px;
  border-radius: 10px;
}

.filter-tab.active .tab-badge {
  background-color: var(--wa-teal);
  color: #111;
}

/* User & Admin Actions */
.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.action-btn {
  background: transparent;
  border: none;
  color: var(--wa-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 12px;
  gap: 6px;
  transition: background 0.15s;
}

.action-btn:hover {
  background-color: var(--wa-input-dark);
  color: var(--wa-text-primary);
}

.action-btn.admin-btn {
  border: 1px solid var(--wa-border);
  color: var(--wa-teal);
}

/* Main Split View */
.main-workspace {
  display: flex;
  flex: 1;
  height: calc(100vh - 52px);
  overflow: hidden;
  position: relative;
}

/* Left Sidebar */
.sidebar {
  width: 380px;
  min-width: 320px;
  background-color: var(--wa-panel-dark);
  border-right: 1px solid var(--wa-border);
  display: flex;
  flex-direction: column;
  height: 100%;
  flex-shrink: 0;
}

.sidebar-header {
  height: 60px;
  background-color: var(--wa-header-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.user-profile-summary {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--wa-input-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--wa-teal);
  font-size: 15px;
  overflow: hidden;
}

.avatar-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sidebar-search-box {
  padding: 8px 12px;
  background-color: var(--wa-panel-dark);
  border-bottom: 1px solid var(--wa-border);
}

.search-input-wrapper {
  background-color: var(--wa-header-dark);
  border-radius: 8px;
  display: flex;
  align-items: center;
  padding: 6px 12px;
  gap: 10px;
}

.search-input-wrapper input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--wa-text-primary);
  font-size: 14px;
  width: 100%;
}

.search-input-wrapper input::placeholder {
  color: var(--wa-text-secondary);
}

/* Groups List */
.groups-list {
  flex: 1;
  overflow-y: auto;
}

.group-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  gap: 14px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: background-color 0.15s;
}

.group-item:hover {
  background-color: var(--wa-header-dark);
}

.group-item.active {
  background-color: var(--wa-active-chat);
}

.group-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--wa-input-dark);
  flex-shrink: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.group-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.group-header-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
}

.group-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--wa-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.group-time {
  font-size: 11px;
  color: var(--wa-text-secondary);
  flex-shrink: 0;
}

.group-snippet-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.group-snippet {
  font-size: 13px;
  color: var(--wa-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.unread-pill {
  background-color: var(--wa-teal);
  color: #111;
  font-size: 11px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 12px;
  margin-left: 8px;
}

/* Right Chat Area */
.chat-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--wa-bg-dark);
  position: relative;
  height: 100%;
}

.chat-header {
  height: 60px;
  background-color: var(--wa-header-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-bottom: 1px solid var(--wa-border);
  z-index: 10;
}

.chat-header-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-title {
  font-size: 16px;
  font-weight: 600;
}

.chat-subtitle {
  font-size: 12px;
  color: var(--wa-text-secondary);
}

.chat-header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--wa-text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, background 0.15s;
}

.icon-btn:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--wa-text-primary);
}

/* Chat Messages Scroll Container */
.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 20px 48px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}

.encryption-notice {
  align-self: center;
  background-color: #182229;
  border-radius: 8px;
  padding: 6px 14px;
  font-size: 11px;
  color: #ffd279;
  text-align: center;
  margin-bottom: 12px;
  box-shadow: 0 1px 0.5px rgba(11, 20, 26, 0.13);
}

/* Authentic WhatsApp Date Divider */
.chat-date-divider {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: 14px 0 10px 0;
  user-select: none;
}

.chat-date-pill {
  background-color: #182229;
  color: var(--wa-text-secondary);
  font-size: 11.5px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 7.5px;
  box-shadow: 0 1px 0.5px rgba(11, 20, 26, 0.2);
  text-transform: uppercase;
  letter-spacing: 0.25px;
}

/* Authentic WhatsApp System Announcement Chip */
.chat-system-chip {
  align-self: center;
  background-color: rgba(24, 34, 41, 0.9);
  border-radius: 7.5px;
  padding: 4px 12px;
  font-size: 11px;
  color: #ffd279;
  text-align: center;
  margin: 6px auto;
  max-width: 85%;
  line-height: 15px;
  box-shadow: 0 1px 0.5px rgba(11, 20, 26, 0.15);
}

/* Message Bubble */
.msg-bubble {
  max-width: 65%;
  border-radius: 8px;
  padding: 6px 10px;
  position: relative;
  font-size: 14.2px;
  line-height: 19px;
  word-wrap: break-word;
  box-shadow: 0 1px 0.5px rgba(11, 20, 26, 0.13);
}

.msg-incoming {
  align-self: flex-start;
  background-color: var(--wa-incoming);
  border-top-left-radius: 0;
}

.msg-outgoing {
  align-self: flex-end;
  background-color: var(--wa-outgoing);
  border-top-right-radius: 0;
}

.msg-sender {
  font-size: 12px;
  font-weight: 600;
  color: #e542a3;
  margin-bottom: 2px;
}

.msg-incoming:nth-child(odd) .msg-sender {
  color: #25d366;
}

.msg-reply-snippet {
  background-color: rgba(0, 0, 0, 0.2);
  border-left: 4px solid var(--wa-teal);
  border-radius: 4px;
  padding: 4px 8px;
  margin-bottom: 4px;
  font-size: 12px;
  color: var(--wa-text-secondary);
}

.msg-media {
  margin: -2px -6px 4px -6px;
  border-radius: 6px;
  overflow: hidden;
  max-width: 320px;
}

.msg-media img, .msg-media video {
  width: 100%;
  display: block;
  cursor: pointer;
}

.msg-doc-card {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: rgba(0, 0, 0, 0.2);
  padding: 8px 12px;
  border-radius: 6px;
  margin-bottom: 4px;
  text-decoration: none;
  color: var(--wa-text-primary);
}

.msg-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  margin-top: 2px;
  float: right;
  margin-left: 12px;
}

.msg-time {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
}

.msg-ticks {
  font-size: 12px;
}

.msg-ticks.blue {
  color: var(--wa-blue-tick);
}

/* Reactions Pill */
.reaction-pill {
  position: absolute;
  bottom: -10px;
  right: 12px;
  background-color: var(--wa-header-dark);
  border: 1px solid var(--wa-border);
  border-radius: 12px;
  padding: 1px 6px;
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

/* Reply Preview Bar above input */
.reply-preview-bar {
  background-color: var(--wa-header-dark);
  border-top: 1px solid var(--wa-border);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.reply-preview-content {
  border-left: 3px solid var(--wa-teal);
  padding-left: 10px;
  font-size: 12px;
}

/* Chat Input Bar */
.chat-input-bar {
  height: 62px;
  background-color: var(--wa-header-dark);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  border-top: 1px solid var(--wa-border);
}

.input-field-wrapper {
  flex: 1;
  background-color: var(--wa-input-dark);
  border-radius: 8px;
  padding: 9px 14px;
}

.input-field-wrapper input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--wa-text-primary);
  font-size: 14.5px;
}

.input-field-wrapper input::placeholder {
  color: var(--wa-text-secondary);
}

.send-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--wa-teal);
  border: none;
  color: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s;
}

.send-btn:hover {
  background-color: var(--wa-teal-hover);
}

/* Global Content Filter Views */
.content-filter-view {
  flex: 1;
  background-color: var(--wa-bg-dark);
  overflow-y: auto;
  padding: 24px 32px;
  display: none;
}

.content-filter-view.active {
  display: block;
}

.filter-view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--wa-border);
  padding-bottom: 12px;
}

.filter-view-title {
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Media Grid */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}

.media-card {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  background-color: var(--wa-header-dark);
  cursor: pointer;
  border: 1px solid var(--wa-border);
  transition: transform 0.15s, border-color 0.15s;
}

.media-card:hover {
  transform: scale(1.02);
  border-color: var(--wa-teal);
}

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

.media-card-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.7);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 10px;
}

.media-card-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  padding: 10px 8px 6px 8px;
  font-size: 11px;
}

/* Docs & Links List */
.docs-list, .links-list, .audio-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.doc-item-card, .link-item-card, .audio-item-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--wa-header-dark);
  border: 1px solid var(--wa-border);
  border-radius: 8px;
  padding: 14px 18px;
  transition: border-color 0.15s;
}

.doc-item-card:hover, .link-item-card:hover, .audio-item-card:hover {
  border-color: var(--wa-teal);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

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

.modal-card {
  background-color: var(--wa-header-dark);
  border: 1px solid var(--wa-border);
  border-radius: 12px;
  width: 90%;
  max-width: 480px;
  padding: 28px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 12px;
  color: var(--wa-text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-input {
  width: 100%;
  background-color: var(--wa-input-dark);
  border: 1px solid var(--wa-border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--wa-text-primary);
  font-size: 14px;
  outline: none;
}

.form-input:focus {
  border-color: var(--wa-teal);
}

.btn-primary {
  width: 100%;
  background-color: var(--wa-teal);
  color: #111;
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover {
  background-color: var(--wa-teal-hover);
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.95);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 150;
  flex-direction: column;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .sidebar {
    width: 100%;
  }
  .chat-pane {
    display: none;
  }
  .app-container.chat-active .sidebar {
    display: none;
  }
  .app-container.chat-active .chat-pane {
    display: flex;
  }
}

/* Mode Switcher */
.mode-switcher {
  display: flex;
  background-color: var(--wa-input-dark);
  border-radius: 22px;
  padding: 3px;
  gap: 2px;
}

.mode-btn {
  background: transparent;
  border: none;
  color: var(--wa-text-secondary);
  padding: 6px 14px;
  border-radius: 18px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.mode-btn.active {
  background-color: var(--wa-teal);
  color: #111;
  font-weight: 600;
}

.top-dropdown {
  background-color: var(--wa-input-dark);
  border: 1px solid var(--wa-border);
  color: var(--wa-text-primary);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12.5px;
  outline: none;
  cursor: pointer;
}

/* AI Agent Viewport */
.ai-agent-header {
  height: 64px;
  background-color: var(--wa-header-dark);
  border-bottom: 1px solid var(--wa-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.lang-toggle-pills {
  display: flex;
  background-color: var(--wa-panel-dark);
  border-radius: 16px;
  padding: 2px;
  border: 1px solid var(--wa-border);
}

.lang-pill {
  background: transparent;
  border: none;
  color: var(--wa-text-secondary);
  padding: 4px 10px;
  border-radius: 14px;
  font-size: 11px;
  cursor: pointer;
}

.lang-pill.active {
  background-color: var(--wa-teal);
  color: #111;
  font-weight: 600;
}

.ai-chat-thread {
  flex: 1;
  overflow-y: auto;
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background-color: var(--wa-bg-dark);
}

.ai-bubble {
  max-width: 80%;
  border-radius: 12px;
  padding: 14px 18px;
  font-size: 14.5px;
  line-height: 22px;
}

.ai-bubble.incoming {
  align-self: flex-start;
  background-color: var(--wa-incoming);
  border: 1px solid var(--wa-border);
}

.ai-bubble.outgoing {
  align-self: flex-end;
  background-color: var(--wa-outgoing);
}

.prompt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.chip {
  background-color: var(--wa-header-dark);
  border: 1px solid var(--wa-border);
  color: var(--wa-teal);
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.chip:hover {
  background-color: var(--wa-teal);
  color: #111;
}

.ai-input-bar {
  height: 68px;
  background-color: var(--wa-header-dark);
  border-top: 1px solid var(--wa-border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 12px;
}

.voice-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--wa-input-dark);
  border: 1px solid var(--wa-border);
  color: var(--wa-text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  transition: all 0.2s;
}

.voice-btn.recording {
  background-color: #ff5252;
  animation: pulse 1s infinite;
}

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

/* Canvas Viewport */
.canvas-viewport {
  background: radial-gradient(#222d34 1px, transparent 1px);
  background-size: 16px 16px;
  padding: 24px;
  border-radius: 12px;
  border: 1px solid var(--wa-border);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

#studioCanvas {
  display: block;
  background: #0b141a;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.7);
}