:root {
  --bg-main: #0b0f19;
  --bg-card: #111827;
  --bg-card-hover: #162032;
  --bg-card-active: #1f293d;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;
  
  --primary: #25d366;
  --primary-hover: #20ba5a;
  --primary-dark: #128c7e;
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --accent-purple: #8b5cf6;
  
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --status-connected: #10b981;
  --status-connecting: #f59e0b;
  --status-disconnected: #ef4444;
  
  --chat-bg: #0d131f;
  --chat-bubble-out: #005c4b;
  --chat-bubble-in: #1e293b;
  
  --sidebar-width: 250px;
  --topbar-height: 64px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Layout App Container */
#app-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-card);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
  z-index: 40;
}

.sidebar-header {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-color);
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #25d366, #128c7e);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 0 15px rgba(37, 211, 102, 0.4);
}

.brand-text {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(120deg, #ffffff, #9ca3af);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-menu {
  flex: 1;
  overflow-y: auto;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.menu-category {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 12px 12px 6px 12px;
  font-weight: 600;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.menu-item:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
}

.menu-item.active {
  background-color: rgba(37, 211, 102, 0.12);
  color: var(--primary);
  font-weight: 600;
}

.menu-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background-color: var(--primary);
  border-radius: 0 4px 4px 0;
}

.menu-badge {
  margin-left: auto;
  background-color: var(--primary);
  color: #000;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 12px;
}

.sidebar-footer {
  padding: 14px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background-color: var(--bg-main);
}

/* Topbar */
.topbar {
  height: var(--topbar-height);
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 30;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.tenant-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--text-primary);
}

.tenant-selector select {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 600;
  outline: none;
  cursor: pointer;
}

.tenant-selector select option {
  background-color: var(--bg-card);
  color: var(--text-primary);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

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

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
  color: white;
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
}

.user-role {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Page Content */
.content-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* Clean Dashboard Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform 0.2s, border-color 0.2s;
}

.metric-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.15);
}

.metric-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.metric-icon-box.green {
  background: rgba(37, 211, 102, 0.15);
  color: var(--primary);
}

.metric-icon-box.blue {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
}

.metric-icon-box.purple {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple);
}

.metric-icon-box.amber {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
}

.metric-data {
  display: flex;
  flex-direction: column;
}

.metric-value {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Chat Layout - Full Height Modern WhatsApp View */
.chat-container {
  display: flex;
  height: calc(100vh - var(--topbar-height) - 48px);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.chat-sidebar {
  width: 360px;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  background-color: #0f1624;
}

.chat-search-header {
  padding: 12px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-instance-filter-box {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chat-filter-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}

.chat-instance-select {
  width: 100%;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 10px;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}

.chat-instance-select:focus {
  border-color: var(--primary);
}

.chat-instance-chips-bar {
  display: flex;
  gap: 5px;
  overflow-x: auto;
  padding-bottom: 3px;
}

.chat-instance-chips-bar::-webkit-scrollbar {
  height: 3px;
}

.instance-chip {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 3px 9px;
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.2s;
}

.instance-chip:hover {
  background: rgba(255, 255, 255, 0.09);
  color: var(--text-primary);
}

.instance-chip.active {
  background: rgba(37, 211, 102, 0.15);
  border-color: rgba(37, 211, 102, 0.4);
  color: var(--primary);
  font-weight: 600;
}

.status-dot-sm {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.status-dot-sm.online {
  background: #10b981;
  box-shadow: 0 0 5px #10b981;
}

.status-dot-sm.offline {
  background: #ef4444;
}

.chat-item-badges {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 3px 0 3px 0;
  flex-wrap: wrap;
}

.instance-tag-pill {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  white-space: nowrap;
}

.company-tag-pill {
  font-size: 0.65rem;
  font-weight: 500;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  border: 1px solid rgba(255, 255, 255, 0.06);
  white-space: nowrap;
}

.chat-contact-phone {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: monospace;
}

.search-input-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input-box input {
  width: 100%;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 8px 12px 8px 34px;
  color: var(--text-primary);
  font-size: 0.85rem;
  outline: none;
}

.search-input-box input:focus {
  border-color: var(--primary);
}

.search-icon-svg {
  position: absolute;
  left: 10px;
  color: var(--text-muted);
}

.chat-list {
  flex: 1;
  overflow-y: auto;
}

.chat-list-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 11px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: background-color 0.15s;
}

.chat-list-item:hover {
  background-color: var(--bg-card-hover);
}

.chat-list-item.active {
  background-color: #1a2538;
}

.chat-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #2a374a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
  position: relative;
}

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

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

.chat-contact-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-time {
  font-size: 0.72rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

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

.chat-preview-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.chat-unread-badge {
  background-color: var(--primary);
  color: #000;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  margin-left: 6px;
}

/* Chat Main View */
.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--chat-bg);
  position: relative;
}

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

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

.chat-messages-area {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 20px 20px;
}

.message-bubble {
  max-width: 65%;
  padding: 9px 13px;
  border-radius: 12px;
  font-size: 0.88rem;
  line-height: 1.4;
  position: relative;
  word-break: break-word;
  animation: fadeInMsg 0.15s ease-out;
}

@keyframes fadeInMsg {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.message-bubble.outbound {
  align-self: flex-end;
  background-color: var(--chat-bubble-out);
  color: #f1f5f9;
  border-bottom-right-radius: 2px;
}

.message-bubble.inbound {
  align-self: flex-start;
  background-color: var(--chat-bubble-in);
  color: #f1f5f9;
  border-bottom-left-radius: 2px;
}

.message-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  margin-top: 4px;
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.6);
}

.chat-input-bar {
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-input-field {
  flex: 1;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 10px 16px;
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
}

.chat-input-field:focus {
  border-color: var(--primary);
}

/* Chat CRM Details Sidebar (Right) */
.chat-crm-sidebar {
  width: 280px;
  border-left: 1px solid var(--border-color);
  background-color: #0f1624;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  outline: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #000;
}
.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 0 12px rgba(37, 211, 102, 0.4);
}

.btn-blue {
  background-color: var(--accent-blue);
  color: #fff;
}
.btn-blue:hover {
  background-color: var(--accent-blue-hover);
}

.btn-danger {
  background-color: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
  background-color: #ef4444;
  color: #fff;
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

.btn-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Kanban Board (CRM Funnel) */
.kanban-board {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 16px;
  min-height: calc(100vh - 220px);
}

.kanban-column {
  min-width: 280px;
  max-width: 320px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 220px);
}

.kanban-column-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kanban-cards-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.kanban-card {
  background-color: #1a2333;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  cursor: grab;
  transition: transform 0.15s, border-color 0.15s, opacity 0.15s;
}

.kanban-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.kanban-card.dragging {
  opacity: 0.4;
  transform: scale(0.96);
  border: 1px dashed var(--primary);
}

.kanban-cards-list.drag-over {
  background-color: rgba(59, 130, 246, 0.08);
  border: 2px dashed rgba(59, 130, 246, 0.5);
  border-radius: var(--radius-md);
}

/* Badges & Tags */
.tag-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.72rem;
  font-weight: 600;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 12px;
}

.status-indicator.CONNECTED {
  background: rgba(16, 185, 129, 0.15);
  color: var(--status-connected);
}

.status-indicator.CONNECTING {
  background: rgba(245, 158, 11, 0.15);
  color: var(--status-connecting);
}

.status-indicator.DISCONNECTED {
  background: rgba(239, 68, 68, 0.15);
  color: var(--status-disconnected);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: currentColor;
  box-shadow: 0 0 8px currentColor;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
  animation: fadeIn 0.2s ease-out;
}

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

.modal-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: slideUp 0.2s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(16px); }
  to { transform: translateY(0); }
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 20px;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

/* Form inputs */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 9px 12px;
  color: var(--text-primary);
  font-size: 0.88rem;
  outline: none;
  transition: border-color 0.2s;
}

.form-control:focus {
  border-color: var(--primary);
}

textarea.form-control {
  min-height: 90px;
  resize: vertical;
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background-color: #1e293b;
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  color: #fff;
  font-size: 0.85rem;
  min-width: 260px;
  animation: toastIn 0.25s ease-out;
}

@keyframes toastIn {
  from { transform: translateX(50px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.toast.error {
  border-left-color: #ef4444;
}

.toast.warning {
  border-left-color: #f59e0b;
}

/* Responsive Table */
.data-table-wrapper {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  background-color: #0f1624;
  padding: 12px 16px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px 16px;
  font-size: 0.88rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.data-table tr:hover td {
  background-color: var(--bg-card-hover);
}