/**
 * FB Chatbot Dashboard - Multi-Page Application Styles
 * A modern, professional design with sidebar navigation
 */

/* ===== CSS Variables ===== */
:root {
    --primary: #0066FF;
    --primary-dark: #0052CC;
    --primary-light: #E6F0FF;
    --secondary: #6B7280;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --info: #3B82F6;
    
    --bg-body: #F3F4F6;
    --bg-card: #FFFFFF;
    --bg-sidebar: #111827;
    --bg-sidebar-hover: #1F2937;
    
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --text-light: #F9FAFB;
    
    --border-color: #E5E7EB;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    
    --sidebar-width: 260px;
    --topbar-height: 64px;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --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);
    
    --transition: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-body);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

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

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.5rem;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary), #7C3AED);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-sidebar);
    display: flex;
    flex-direction: column;
    z-index: 1050;
    transition: transform 0.3s ease;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-light);
    font-weight: 700;
    font-size: 1.25rem;
}

.sidebar-brand:hover {
    color: var(--text-light);
}

.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), #7C3AED);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
}

.brand-icon-sm {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary), #7C3AED);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: white;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section-title {
    display: block;
    padding: 0.5rem 1.25rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    margin: 0.125rem 0.75rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: rgba(255, 255, 255, 0.7);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.nav-link i {
    font-size: 1rem;
    width: 20px;
    text-align: center;
}

.nav-link:hover {
    background: var(--bg-sidebar-hover);
    color: var(--text-light);
}

.nav-link.active {
    background: var(--primary);
    color: white;
}

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-light);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #7C3AED);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: white;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 500;
}

.sidebar-footer .nav-link {
    margin: 0.5rem 0 0 0;
    padding: 0.5rem 0;
    color: rgba(255, 255, 255, 0.5);
}

.sidebar-footer .nav-link:hover {
    background: transparent;
    color: var(--danger);
}

/* Sidebar toggle buttons - hidden by default on desktop */
#sidebarToggle,
#sidebarClose {
    display: none;
}

/* Close button inside sidebar header */
#sidebarClose {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

#sidebarClose:hover {
    background: rgba(255, 255, 255, 0.2);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1055;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

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

/* ===== Topbar ===== */
.topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    z-index: 1020;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.breadcrumb {
    font-size: 0.875rem;
}

.breadcrumb-item a {
    color: var(--text-secondary);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    padding: 1.5rem;
}

/* ===== Cards ===== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1rem;
}

.card-header {
    padding: 1rem 1.25rem;
    background: transparent;
    border-bottom: 1px solid var(--border-color);
}

.card-header h5 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.card-body {
    padding: 1.25rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* ===== Bot Card ===== */
.bot-card {
    transition: var(--transition);
}

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

.bot-status {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.status-active {
    background: var(--success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.status-inactive {
    background: var(--text-muted);
}

/* ===== Stats Card ===== */
.stats-card {
    text-align: center;
    padding: 0.5rem;
}

.stats-card .stats-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stats-card h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stats-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-state i {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.empty-state h5 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Buttons ===== */
.btn {
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    padding: 0.5rem 1rem;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-facebook {
    background: #1877F2;
    border-color: #1877F2;
    color: white;
}

.btn-facebook:hover {
    background: #166FE5;
    border-color: #166FE5;
    color: white;
}

/* ===== Forms ===== */
.form-control, .form-select {
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.form-label {
    font-size: 0.875rem;
    margin-bottom: 0.375rem;
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

/* ===== Tables ===== */
.table {
    font-size: 0.875rem;
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
}

.table td {
    vertical-align: middle;
    padding: 1rem 0.75rem;
}

/* ===== Customer Avatar ===== */
.customer-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #7C3AED);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    overflow: hidden;
}

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

.customer-avatar-lg {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #7C3AED);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: white;
    overflow: hidden;
    margin: 0 auto;
}

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

/* ===== Modals ===== */
.modal-content {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 1.25rem 1.5rem 0;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 0 1.5rem 1.25rem;
}

.modal-title {
    font-size: 1.25rem;
}

/* ===== Divider ===== */
.divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.divider-text {
    padding: 0 1rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== Toast ===== */
.toast {
    border: none;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
}

/* ===== Auth Page ===== */
.auth-page {
    background: linear-gradient(135deg, #F9FAFB 0%, #EEF2FF 100%);
}

.auth-main {
    padding: 4rem 0;
}

.min-vh-80 {
    min-height: 80vh;
}

.hero-content {
    max-width: 540px;
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    height: 100%;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

/* ===== Badges ===== */
.badge {
    font-weight: 500;
    padding: 0.375rem 0.625rem;
    border-radius: 6px;
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 1060;
    }
    
    .sidebar.active {
        transform: translateX(0);
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
    }
    
    /* Hamburger toggle button in topbar */
    #sidebarToggle {
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 8px;
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        color: var(--text-primary);
        cursor: pointer;
    }
    
    #sidebarToggle:hover {
        background: var(--primary-light);
        color: var(--primary);
    }
    
    /* Close button in sidebar header */
    #sidebarClose {
        display: flex !important;
        align-items: center;
        justify-content: center;
    }
    
    .sidebar-overlay.active {
        display: block;
    }
    
    .main-wrapper {
        margin-left: 0;
    }
}

@media (max-width: 767.98px) {
    .topbar {
        padding: 0 1rem;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .page-title {
        font-size: 1rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
}

/* ===== Utilities ===== */
.gap-2 {
    gap: 0.5rem;
}

.gap-3 {
    gap: 1rem;
}

.gap-4 {
    gap: 1.5rem;
}

/* ===== Loading Spinner ===== */
.spinner-border {
    width: 2rem;
    height: 2rem;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ===== Animation ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}