/**
 * AI Agent Widget - Admin Dashboard Styles
 * Production-ready CSS with modern design patterns
 * 
 * @author AI Agent Team
 * @version 1.0.0
 */

/* ============================================
   CSS Variables - Design Tokens
   ============================================ */
:root {
    /* Primary Colors */
    --primary-color: #2563EB;
    --primary-hover: #1D4ED8;
    --primary-light: #DBEAFE;
    --primary-dark: #1E40AF;
    
    /* Secondary Colors */
    --secondary-color: #64748B;
    --secondary-hover: #475569;
    --secondary-light: #F1F5F9;
    
    /* Status Colors */
    --success-color: #10B981;
    --success-light: #D1FAE5;
    --warning-color: #F59E0B;
    --warning-light: #FEF3C7;
    --error-color: #EF4444;
    --error-light: #FEE2E2;
    --info-color: #3B82F6;
    --info-light: #DBEAFE;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --header-height: 70px;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
}

input,
select,
textarea {
    font-family: inherit;
    font-size: var(--font-size-base);
}

img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   Dashboard Layout
   ============================================ */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

/* ============================================
   Sidebar Styles
   ============================================ */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: var(--white);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    transition: width var(--transition-base);
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.logo i {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-md) 0;
    overflow-y: auto;
}

.sidebar-nav ul {
    list-style: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--gray-400);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--white);
}

.nav-item.active {
    background-color: rgba(37, 99, 235, 0.2);
    color: var(--white);
    border-left: 3px solid var(--primary-color);
}

.nav-item i {
    width: 20px;
    text-align: center;
}

.nav-item .badge {
    margin-left: auto;
    background-color: var(--primary-color);
    color: var(--white);
    font-size: var(--font-size-xs);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.sidebar-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-avatar {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.user-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.user-role {
    font-size: var(--font-size-xs);
    color: var(--gray-400);
}

/* ============================================
   Main Content Area
   ============================================ */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ============================================
   Header Styles
   ============================================ */
.content-header {
    height: var(--header-height);
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.menu-toggle {
    display: none;
    background: none;
    font-size: var(--font-size-xl);
    color: var(--gray-600);
}

.header-left h1 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

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

.search-box i {
    position: absolute;
    left: 12px;
    color: var(--gray-400);
}

.search-box input {
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 40px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    width: 250px;
    transition: all var(--transition-fast);
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
    outline: none;
}

.search-box.small input {
    width: 180px;
}

/* ============================================
   Button Styles
   ============================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--gray-100);
    color: var(--gray-600);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    position: relative;
}

.btn-icon:hover {
    background-color: var(--gray-200);
    color: var(--gray-800);
}

.btn-icon:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.notification-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--error-color);
    border-radius: var(--radius-full);
}

/* ============================================
   Content Sections
   ============================================ */
.content-section {
    display: none;
    padding: var(--spacing-xl);
    flex: 1;
}

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

/* ============================================
   Stats Cards
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
}

.stat-icon.blue {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.stat-icon.green {
    background-color: var(--success-light);
    color: var(--success-color);
}

.stat-icon.purple {
    background-color: #EDE9FE;
    color: #7C3AED;
}

.stat-icon.orange {
    background-color: var(--warning-light);
    color: var(--warning-color);
}

.stat-info {
    flex: 1;
}

.stat-info h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
}

.stat-info p {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.stat-trend {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.stat-trend.up {
    color: var(--success-color);
}

.stat-trend.down {
    color: var(--error-color);
}

/* ============================================
   Charts
   ============================================ */
.charts-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.chart-card {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

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

.chart-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.chart-header select {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.chart-container {
    height: 300px;
    position: relative;
}

/* ============================================
   Sales Funnel
   ============================================ */
.funnel-section {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-xl);
}

.funnel-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.funnel-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.funnel-stage {
    display: flex;
    justify-content: center;
}

.funnel-bar {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--white);
    transition: all var(--transition-fast);
}

.funnel-bar:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

.funnel-stage[data-stage="new"] .funnel-bar {
    background: linear-gradient(90deg, #3B82F6 0%, #2563EB 100%);
}

.funnel-stage[data-stage="contacted"] .funnel-bar {
    background: linear-gradient(90deg, #8B5CF6 0%, #7C3AED 100%);
}

.funnel-stage[data-stage="negotiation"] .funnel-bar {
    background: linear-gradient(90deg, #F59E0B 0%, #D97706 100%);
}

.funnel-stage[data-stage="converted"] .funnel-bar {
    background: linear-gradient(90deg, #10B981 0%, #059669 100%);
}

.funnel-label {
    font-weight: 500;
}

.funnel-count {
    font-weight: 700;
    font-size: var(--font-size-lg);
}

/* ============================================
   Activity Section
   ============================================ */
.activity-section {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

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

.section-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.view-all {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: background-color var(--transition-fast);
}

.activity-item:hover {
    background-color: var(--gray-50);
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
}

.activity-icon.lead {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.activity-icon.message {
    background-color: var(--success-light);
    color: var(--success-color);
}

.activity-icon.callback {
    background-color: var(--warning-light);
    color: var(--warning-color);
}

.activity-content {
    flex: 1;
}

.activity-content strong {
    color: var(--gray-900);
}

.activity-content p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.activity-time {
    font-size: var(--font-size-xs);
    color: var(--gray-400);
}

/* ============================================
   Leads Section
   ============================================ */
.section-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.filter-group {
    display: flex;
    gap: var(--spacing-sm);
}

.filter-group select,
.filter-group input[type="date"] {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--gray-700);
}

/* ============================================
   Data Table
   ============================================ */
.table-container {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

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

.data-table th,
.data-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.data-table th {
    background-color: var(--gray-50);
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    cursor: pointer;
    user-select: none;
}

.data-table th:hover {
    background-color: var(--gray-100);
}

.data-table th i {
    margin-left: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--gray-400);
}

.data-table tbody tr {
    transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
    background-color: var(--gray-50);
}

.data-table td {
    font-size: var(--font-size-sm);
    color: var(--gray-700);
}

.data-table input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: capitalize;
}

.status-badge.new {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.status-badge.contacted {
    background-color: #EDE9FE;
    color: #7C3AED;
}

.status-badge.negotiation {
    background-color: var(--warning-light);
    color: var(--warning-color);
}

.status-badge.converted {
    background-color: var(--success-light);
    color: var(--success-color);
}

.status-badge.spam {
    background-color: var(--error-light);
    color: var(--error-color);
}

/* Type Badges */
.type-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
    background-color: var(--gray-100);
    color: var(--gray-600);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.action-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background-color: transparent;
    color: var(--gray-500);
    transition: all var(--transition-fast);
}

.action-btn:hover {
    background-color: var(--gray-100);
    color: var(--gray-700);
}

.action-btn.edit:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.action-btn.delete:hover {
    background-color: var(--error-light);
    color: var(--error-color);
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.page-info {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

/* ============================================
   Conversations Section
   ============================================ */
.conversations-container {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--spacing-lg);
    height: calc(100vh - var(--header-height) - var(--spacing-xl) * 2);
}

.conversations-list {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.conversations-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

.conversations-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

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

.session-item {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--gray-100);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.session-item:hover {
    background-color: var(--gray-50);
}

.session-item.active {
    background-color: var(--primary-light);
    border-left: 3px solid var(--primary-color);
}

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

.session-id {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--gray-900);
}

.session-time {
    font-size: var(--font-size-xs);
    color: var(--gray-400);
}

.session-preview {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.session-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.session-meta span {
    font-size: var(--font-size-xs);
    color: var(--gray-400);
}

/* Conversation View */
.conversation-view {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.conversation-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.visitor-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.visitor-avatar {
    width: 48px;
    height: 48px;
    background-color: var(--gray-200);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    font-size: var(--font-size-lg);
}

.visitor-details h4 {
    font-weight: 600;
    color: var(--gray-900);
}

.visitor-details span {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.conversation-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

.message {
    max-width: 80%;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
}

.message.user {
    align-self: flex-end;
    background-color: var(--primary-color);
    color: var(--white);
    border-bottom-right-radius: var(--radius-sm);
}

.message.assistant {
    align-self: flex-start;
    background-color: var(--gray-100);
    color: var(--gray-800);
    border-bottom-left-radius: var(--radius-sm);
}

.message.tool {
    align-self: flex-start;
    background-color: var(--warning-light);
    color: var(--gray-800);
    border: 1px dashed var(--warning-color);
    font-family: monospace;
    font-size: var(--font-size-xs);
}

.message-time {
    font-size: var(--font-size-xs);
    color: var(--gray-400);
    margin-top: var(--spacing-xs);
}

.message.user .message-time {
    color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   Settings Section
   ============================================ */
.settings-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--spacing-lg);
    background-color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.settings-sidebar {
    background-color: var(--gray-50);
    border-right: 1px solid var(--gray-200);
    padding: var(--spacing-lg) 0;
}

.settings-nav {
    list-style: none;
}

.settings-nav li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.settings-nav li:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
}

.settings-nav li.active {
    background-color: var(--primary-light);
    color: var(--primary-color);
    border-left: 3px solid var(--primary-color);
}

.settings-content {
    padding: var(--spacing-xl);
}

.settings-tab {
    display: none;
}

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

.settings-tab h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.settings-description {
    color: var(--gray-500);
    margin-bottom: var(--spacing-lg);
}

/* Form Groups */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
    outline: none;
}

.form-group small {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

/* Color Picker */
.color-picker-group {
    display: flex;
    gap: var(--spacing-sm);
}

.color-picker-group input[type="color"] {
    width: 50px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
}

.color-picker-group input[type="text"] {
    flex: 1;
    max-width: 120px;
}

/* Position Selector */
.position-selector {
    display: flex;
    gap: var(--spacing-lg);
}

.position-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.position-option input {
    display: none;
}

.position-preview {
    width: 80px;
    height: 60px;
    background-color: var(--gray-100);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    position: relative;
    transition: all var(--transition-fast);
}

.position-preview::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    background-color: var(--primary-color);
    border-radius: var(--radius-full);
}

.position-preview.br::after {
    bottom: 6px;
    right: 6px;
}

.position-preview.bl::after {
    bottom: 6px;
    left: 6px;
}

.position-option input:checked + .position-preview {
    border-color: var(--primary-color);
    background-color: var(--primary-light);
}

/* Toggle Switch */
.toggle-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}

.toggle-label input {
    display: none;
}

.toggle-switch {
    width: 48px;
    height: 26px;
    background-color: var(--gray-300);
    border-radius: var(--radius-full);
    position: relative;
    transition: background-color var(--transition-fast);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background-color: var(--white);
    border-radius: var(--radius-full);
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.toggle-label input:checked + .toggle-switch {
    background-color: var(--primary-color);
}

.toggle-label input:checked + .toggle-switch::after {
    transform: translateX(22px);
}

/* Tools List */
.tools-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.tool-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tool-item:hover {
    border-color: var(--primary-color);
    background-color: var(--gray-50);
}

.tool-item input {
    width: 20px;
    height: 20px;
}

.tool-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.tool-info i {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-light);
    color: var(--primary-color);
    border-radius: var(--radius-md);
}

.tool-info strong {
    display: block;
    color: var(--gray-900);
}

.tool-info span {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* Settings Actions */
.settings-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
}

/* ============================================
   Integration Section
   ============================================ */
.integration-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.integration-card {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.integration-card h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.integration-card h3 i {
    color: var(--primary-color);
}

.integration-card > p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
}

/* Code Block */
.code-block {
    position: relative;
    background-color: var(--gray-900);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    overflow-x: auto;
}

.code-block pre {
    color: var(--gray-100);
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin: 0;
}

.btn-copy {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: var(--gray-700);
    color: var(--gray-300);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.btn-copy:hover {
    background-color: var(--gray-600);
    color: var(--white);
}

/* Input with Copy */
.input-with-copy {
    display: flex;
    gap: var(--spacing-sm);
}

.input-with-copy input {
    flex: 1;
}

.btn-copy-inline,
.btn-toggle-visibility {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--gray-100);
    color: var(--gray-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.btn-copy-inline:hover,
.btn-toggle-visibility:hover {
    background-color: var(--gray-200);
    color: var(--gray-800);
}

/* Endpoint List */
.endpoint-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.endpoint-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--gray-50);
    border-radius: var(--radius-md);
}

.endpoint-item .method {
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.endpoint-item .method.get {
    background-color: var(--success-light);
    color: var(--success-color);
}

.endpoint-item .method.post {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.endpoint-item code {
    font-family: monospace;
    font-size: var(--font-size-sm);
    color: var(--gray-800);
}

.endpoint-desc {
    margin-left: auto;
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* ============================================
   Modal Styles
   ============================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background-color: var(--white);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

.modal-content.small {
    max-width: 400px;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--gray-100);
    color: var(--gray-600);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--gray-200);
    color: var(--gray-800);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
}

/* Export Options */
.export-options {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.export-option {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.export-option:hover {
    border-color: var(--primary-color);
}

.export-option input {
    display: none;
}

.export-option input:checked + i {
    color: var(--primary-color);
}

.export-option i {
    font-size: var(--font-size-2xl);
    color: var(--gray-400);
}

.export-option:has(input:checked) {
    border-color: var(--primary-color);
    background-color: var(--primary-light);
}

/* ============================================
   Toast Notifications
   ============================================ */
.toast-container {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    z-index: 2000;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: toastSlideIn 0.3s ease;
    min-width: 300px;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.success {
    border-left: 4px solid var(--success-color);
}

.toast.error {
    border-left: 4px solid var(--error-color);
}

.toast.warning {
    border-left: 4px solid var(--warning-color);
}

.toast.info {
    border-left: 4px solid var(--info-color);
}

.toast-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
}

.toast.success .toast-icon {
    background-color: var(--success-light);
    color: var(--success-color);
}

.toast.error .toast-icon {
    background-color: var(--error-light);
    color: var(--error-color);
}

.toast.warning .toast-icon {
    background-color: var(--warning-light);
    color: var(--warning-color);
}

.toast.info .toast-icon {
    background-color: var(--info-light);
    color: var(--info-color);
}

.toast-content {
    flex: 1;
}

.toast-content strong {
    display: block;
    color: var(--gray-900);
    font-size: var(--font-size-sm);
}

.toast-content span {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.toast-close {
    background: none;
    color: var(--gray-400);
    padding: var(--spacing-xs);
}

.toast-close:hover {
    color: var(--gray-600);
}

/* ============================================
   Widget Preview
   ============================================ */
.widget-preview-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

.widget-preview-overlay.active {
    display: flex;
}

.widget-preview-container {
    position: relative;
    width: 100%;
    max-width: 1200px;
    height: 80vh;
    background-color: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.close-preview {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--gray-800);
    color: var(--white);
    border-radius: var(--radius-full);
    z-index: 10;
    transition: all var(--transition-fast);
}

.close-preview:hover {
    background-color: var(--gray-700);
}

.preview-frame {
    width: 100%;
    height: 100%;
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* ============================================
   Widget Demo Styles (Inside Preview)
   ============================================ */
.widget-button {
    position: absolute;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
}

.widget-button:hover {
    transform: scale(1.1);
}

.widget-button.active {
    transform: rotate(90deg);
}

.widget-window {
    position: absolute;
    bottom: 100px;
    right: 24px;
    width: 380px;
    height: 520px;
    background-color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: widgetSlideUp 0.3s ease;
}

.widget-window.active {
    display: flex;
}

@keyframes widgetSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.widget-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.widget-avatar {
    width: 48px;
    height: 48px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.widget-info h4 {
    font-weight: 600;
    margin-bottom: 2px;
}

.widget-info span {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.widget-close {
    margin-left: auto;
    background: none;
    color: var(--white);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.widget-close:hover {
    opacity: 1;
}

.widget-messages {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.widget-message {
    max-width: 85%;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
}

.widget-message.bot {
    align-self: flex-start;
    background-color: var(--gray-100);
    border-bottom-left-radius: var(--radius-sm);
}

.widget-message.user {
    align-self: flex-end;
    background-color: var(--primary-color);
    color: var(--white);
    border-bottom-right-radius: var(--radius-sm);
}

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--gray-100);
    border-radius: var(--radius-lg);
    width: fit-content;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background-color: var(--gray-400);
    border-radius: var(--radius-full);
    animation: typingBounce 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-indicator span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes typingBounce {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

.widget-input-area {
    padding: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--spacing-sm);
}

.widget-input-area input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
}

.widget-input-area input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.widget-send {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.widget-send:hover {
    background-color: var(--primary-hover);
}

/* ============================================
   Responsive Styles
   ============================================ */
@media (max-width: 1200px) {
    .charts-row {
        grid-template-columns: 1fr;
    }
    
    .conversations-container {
        grid-template-columns: 300px 1fr;
    }
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .settings-container {
        grid-template-columns: 1fr;
    }
    
    .settings-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .settings-nav {
        display: flex;
        overflow-x: auto;
        padding: 0 var(--spacing-md);
    }
    
    .settings-nav li {
        white-space: nowrap;
    }
    
    .conversations-container {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .conversations-list {
        max-height: 300px;
    }
    
    .conversation-view {
        min-height: 400px;
    }
}

@media (max-width: 768px) {
    .content-header {
        padding: 0 var(--spacing-md);
    }
    
    .header-right .search-box {
        display: none;
    }
    
    .content-section {
        padding: var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .section-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .toolbar-left,
    .toolbar-right {
        flex-wrap: wrap;
    }
    
    .filter-group {
        flex-wrap: wrap;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    .data-table {
        min-width: 800px;
    }
    
    .modal-content {
        margin: var(--spacing-md);
        max-height: calc(100vh - var(--spacing-xl));
    }
    
    .widget-window {
        width: calc(100% - 48px);
        right: 24px;
        left: 24px;
    }
}

@media (max-width: 480px) {
    .stat-card {
        flex-direction: column;
        text-align: center;
    }
    
    .stat-trend {
        margin-top: var(--spacing-sm);
    }
    
    .funnel-bar {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .export-options {
        flex-direction: column;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .sidebar,
    .content-header,
    .section-toolbar,
    .pagination,
    .action-buttons,
    .modal,
    .toast-container {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-section {
        display: block !important;
    }
    
    .data-table {
        font-size: 10pt;
    }
}