/* Theme Variables & Tokens */
:root {
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --bg-primary: #0b0c16;
  --bg-secondary: #121426;
  
  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-bg-hover: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.07);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --color-green: #10b981;
  --color-red: #ef4444;
  --color-blue: #3b82f6;
  --color-orange: #f59e0b;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  background-image: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 40%),
                    radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.12) 0%, transparent 40%);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Layout Framework */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
  width: 260px;
  background-color: rgba(18, 20, 38, 0.7);
  border-right: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 10;
}

.brand {
  padding: 10px 12px 24px;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 24px;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-dot {
  color: #8b5cf6;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-grow: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.nav-item i {
  width: 18px;
  height: 18px;
}

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

.nav-item.active {
  background-color: var(--accent-primary);
  background-image: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.sidebar-footer {
  padding-top: 16px;
  border-top: 1px solid var(--glass-border);
}

/* Main Panel Styling */
.main-panel {
  flex-grow: 1;
  margin-left: 260px;
  padding: 40px;
  max-width: 1400px;
}

/* Header */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 36px;
}

.top-bar h1 {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.status-panel {
  display: flex;
  gap: 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 8px 16px;
  border-radius: 30px;
  backdrop-filter: blur(10px);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.green { background-color: var(--color-green); box-shadow: 0 0 8px var(--color-green); }
.status-dot.red { background-color: var(--color-red); box-shadow: 0 0 8px var(--color-red); }
.status-dot.gray { background-color: var(--text-muted); }

/* Common Tabs behavior */
.tab-content {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
  display: block;
}

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

/* Metrics Grid / Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.metric-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 24px;
  border-radius: 12px;
  box-shadow: var(--glass-shadow);
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.metric-card:hover {
  transform: translateY(-2px);
  background-color: var(--glass-bg-hover);
  border-color: rgba(255, 255, 255, 0.12);
}

.metric-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.metric-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.metric-icon-bg {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.metric-icon-bg i { width: 18px; height: 18px; color: #fff; }

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

.metric-icon-bg.bg-green { background-color: rgba(16, 185, 129, 0.15); color: var(--color-green); }
.metric-icon-bg.bg-green i { color: var(--color-green); }

.metric-icon-bg.bg-red { background-color: rgba(239, 68, 68, 0.15); color: var(--color-red); }
.metric-icon-bg.bg-red i { color: var(--color-red); }

.metric-icon-bg.bg-orange { background-color: rgba(245, 158, 11, 0.15); color: var(--color-orange); }
.metric-icon-bg.bg-orange i { color: var(--color-orange); }

.metric-value {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 6px;
  display: block;
}

.metric-flex {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.metric-value-sub {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

.metric-sub {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.text-green { color: var(--color-green); }

/* Details Card */
.dashboard-details {
  margin-bottom: 30px;
}

.details-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--glass-shadow);
}

.details-header {
  margin-bottom: 20px;
}

.details-header h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
}

/* Tables */
.stats-table-wrapper {
  overflow-x: auto;
}

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

.stats-table th {
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--glass-border);
}

.stats-table td {
  padding: 16px;
  font-size: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.stats-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.01);
}

/* Action Bar */
.action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.bar-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
}

.bar-actions {
  display: flex;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 10px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #5356e2 0%, #7c4ce7 100%);
  box-shadow: 0 6px 14px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
  background-color: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--glass-bg-hover);
  border-color: rgba(255,255,255,0.15);
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
}

.btn-outline:hover {
  background-color: var(--glass-bg);
  color: var(--text-primary);
}

.btn-block {
  display: flex;
  justify-content: center;
  width: 100%;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 6px;
}

/* Modals & Overlays */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(6, 7, 15, 0.85);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 32px;
  max-width: 540px;
  width: 90%;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  transform: scale(0.95);
  transition: transform 0.3s ease;
}

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

.modal-lg {
  max-width: 800px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 16px;
}

.modal-header h2 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
}

/* Auth Card Custom overrides */
.auth-card {
  text-align: center;
}

.auth-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: rgba(99, 102, 241, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.auth-icon {
  width: 28px;
  height: 28px;
  color: var(--accent-primary);
}

.auth-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.5;
}

/* Inputs & Forms */
.input-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}

.input-row {
  display: flex;
  gap: 16px;
}

.flex-1 { flex: 1; }
.flex-2 { flex: 2; }

label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

input, select, textarea {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  padding: 12px 16px;
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  width: 100%;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.checkbox-row {
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.checkbox-row input {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.checkbox-list-container {
  max-height: 100px;
  overflow-y: auto;
  border: 1px solid var(--glass-border);
  padding: 10px;
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.01);
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 13px;
}

.checkbox-item input {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Campaign Grid List */
.campaign-grid, .mailbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.campaign-card, .mailbox-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 24px;
  position: relative;
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  max-width: 70%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Switch styling for campaign active toggling */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--text-muted);
  transition: .3s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--color-green);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

.card-body {
  flex-grow: 1;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  background-color: rgba(255,255,255,0.02);
  border: 1px solid var(--glass-border);
  padding: 4px 8px;
  border-radius: 6px;
}

.card-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  border-top: 1px solid var(--glass-border);
  padding-top: 16px;
}

.stat-item {
  text-align: center;
}

.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  display: block;
}

.stat-val {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 2px;
  display: block;
}

/* Mailbox Daily stats progress */
.mailbox-usage {
  margin-top: 14px;
}

.progress-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.progress-container {
  height: 6px;
  background-color: rgba(255,255,255,0.05);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 3px;
  width: 0%;
  transition: width 0.3s ease;
}

/* Empty States */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 40px;
  border: 1px dashed var(--glass-border);
  border-radius: 12px;
  background-color: rgba(255,255,255,0.005);
}

.empty-state i {
  width: 48px;
  height: 48px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.empty-state p {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Delete Card button */
.delete-card-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.delete-card-btn:hover {
  color: var(--color-red);
  background-color: rgba(239, 68, 68, 0.1);
}

/* Sequence Step Builder in Modal */
.sequence-builder {
  border-top: 1px solid var(--glass-border);
  padding-top: 20px;
  margin-bottom: 24px;
}

.builder-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.builder-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.steps-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: 350px;
  overflow-y: auto;
  padding-right: 6px;
}

.step-card {
  background-color: rgba(255,255,255,0.015);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 16px;
  position: relative;
}

.step-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.step-number {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-primary);
  text-transform: uppercase;
}

.remove-step-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
}

.remove-step-btn:hover { color: var(--color-red); }

/* WhatsApp Tab Setup layout */
.whatsapp-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.wa-status-card, .wa-test-card, .wa-pairing-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 24px;
  border-radius: 12px;
  box-shadow: var(--glass-shadow);
  margin-bottom: 24px;
}

.wa-status-card h3, .wa-test-card h3, .wa-pairing-card h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

.wa-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 14px;
}

.wa-status-badge.connected { background-color: rgba(16, 185, 129, 0.1); color: var(--color-green); }
.wa-status-badge.connected .status-dot { background-color: var(--color-green); box-shadow: 0 0 8px var(--color-green); }
.wa-status-badge.awaiting { background-color: rgba(245, 158, 11, 0.1); color: var(--color-orange); }
.wa-status-badge.awaiting .status-dot { background-color: var(--color-orange); box-shadow: 0 0 8px var(--color-orange); }
.wa-status-badge.disconnected { background-color: rgba(239, 68, 68, 0.1); color: var(--color-red); }
.wa-status-badge.disconnected .status-dot { background-color: var(--color-red); box-shadow: 0 0 8px var(--color-red); }

.wa-status-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 14px;
}

/* Live QR placement */
.qr-code-wrapper {
  width: 250px;
  height: 250px;
  margin: 20px auto;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 10px;
  background-color: white;
  position: relative;
}

#wa-qr-canvas {
  width: 100% !important;
  height: 100% !important;
}

.qr-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(18, 20, 38, 0.9);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px;
  text-align: center;
}

.qr-overlay span {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Spinner */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(99, 102, 241, 0.15);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.wa-guideline-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 12px;
}

.wa-guideline-badge i { color: var(--color-green); width: 16px; height: 16px; }

/* Import stats report container */
.import-report {
  margin-top: 20px;
  padding: 16px;
  background-color: rgba(255,255,255,0.015);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  animation: fadeIn 0.3s ease;
}

.import-report h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 6px;
}

.report-summary-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 12px;
}

.report-badge {
  font-size: 12px;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: 4px;
}

.report-badge.green { background-color: rgba(16, 185, 129, 0.1); color: var(--color-green); }
.report-badge.red { background-color: rgba(239, 68, 68, 0.1); color: var(--color-red); }
.report-badge.orange { background-color: rgba(245, 158, 11, 0.1); color: var(--color-orange); }

.report-errors-list {
  max-height: 120px;
  overflow-y: auto;
  font-size: 11px;
  color: var(--text-secondary);
  border-top: 1px solid var(--glass-border);
  padding-top: 10px;
}

.report-error-line {
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.test-feedback {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 500;
}

.test-feedback.success { color: var(--color-green); }
.test-feedback.error { color: var(--color-red); }

.hidden { display: none !important; }

/* ----------------- LIVE CHAT INBOX STYLING ----------------- */
.inbox-container {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 20px;
  height: calc(100vh - 160px);
  margin-top: 10px;
}

.inbox-threads {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(10px);
}

.thread-item {
  padding: 16px;
  border-bottom: 1px solid var(--glass-border);
  cursor: pointer;
  transition: background-color 0.2s ease, border-left-color 0.2s ease;
  border-left: 3px solid transparent;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.thread-item:hover {
  background-color: var(--glass-bg-hover);
}

.thread-item.active {
  background-color: rgba(99, 102, 241, 0.08);
  border-left-color: var(--accent-primary);
}

.thread-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.thread-name {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  max-width: 170px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.thread-time {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.thread-body {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.thread-snippet {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.inbox-chat-pane {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.chat-pane-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  text-align: center;
  padding: 40px;
}

.chat-pane-empty-state i {
  width: 48px;
  height: 48px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.chat-pane-empty-state p {
  font-size: 14px;
  max-width: 320px;
  line-height: 1.6;
}

.chat-pane-active-state {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.chat-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.005);
}

.chat-contact-info h3 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

#chat-contact-details {
  font-size: 12px;
  color: var(--text-secondary);
  display: block;
  margin-top: 4px;
}

.chat-messages {
  flex-grow: 1;
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background-color: rgba(6, 7, 15, 0.2);
}

.message-bubble {
  max-width: 65%;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  position: relative;
  display: flex;
  flex-direction: column;
}

.message-bubble.inbound {
  align-self: flex-start;
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  border-top-left-radius: 2px;
}

.message-bubble.outbound {
  align-self: flex-end;
  background-image: var(--accent-gradient);
  color: #fff;
  border-top-right-radius: 2px;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.message-text {
  word-break: break-word;
  white-space: pre-wrap;
}

.message-info {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  margin-top: 6px;
  opacity: 0.7;
  font-weight: 500;
}

.message-sender {
  font-weight: 600;
  margin-right: 12px;
}

.chat-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  gap: 12px;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.005);
}

.chat-footer textarea {
  resize: none;
  height: 48px;
  padding: 13px 20px;
  border-radius: 24px;
  font-size: 14px;
  line-height: 1.4;
  overflow: hidden;
  background-color: rgba(255,255,255,0.015);
}

.btn-send {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
}

.btn-send i {
  width: 18px;
  height: 18px;
}