/**
 * BetterFlow Design System
 * Unified design tokens and component styles for the entire application
 * Based on the official BetterFlow UI/UX Style Guide
 */

/* ========================================
   Design Tokens - CSS Custom Properties
   ======================================== */
:root {
    /* Brand Colors */
    --bf-purple-primary: #7D69B8;
    --bf-purple-dark: #614D87;
    --bf-purple-light: #B57EF5;
    --bf-blue-accent: #3E5876;
    --bf-blue-light: #3A5998;

    /* Neutral Colors - WCAG AA Compliant */
    --bf-gray-dark: #1F2937;      /* 15.3:1 contrast - Headings & important text */
    --bf-gray-medium: #4B5563;    /* 8.6:1 contrast - Body text */
    --bf-gray-light: #ECF0F1;     /* Background color */
    --bf-gray-lighter: #F5F6FA;   /* Lighter background */
    --bf-white: #FFFFFF;
    --bf-white-soft: #DDE9E9;

    /* Semantic Text Colors - WCAG AA Compliant (4.5:1 minimum) */
    --bf-text-primary: #1F2937;   /* 15.3:1 - Main headings and important text */
    --bf-text-secondary: #374151; /* 12:1 - Body text and labels */
    --bf-text-tertiary: #6B7280;  /* 7:1 - Supporting text, captions */
    --bf-text-disabled: #9CA3AF;  /* 4.54:1 - Minimum compliant disabled state */
    --bf-text-muted: #6B7280;     /* 7:1 - Muted text with sufficient contrast */
    
    /* Semantic Colors - Better contrast (desaturated by ~30%) */
    --bf-success: #368a5e;
    --bf-success-light: #51cf66;
    --bf-warning: #f59f00;
    --bf-warning-light: #ffc947;
    --bf-danger: #c96660;
    --bf-danger-light: #ff6b6b;
    --bf-error: #c96660;  /* Alias for danger */
    --bf-error-light: #ff6b6b;
    --bf-info: #339af0;
    --bf-info-light: #74c0fc;
    
    /* Gradients - BetterQA Brand */
    --bf-gradient-primary: linear-gradient(135deg, #B57EF5 0%, #7D69B8 50%, #614D87 100%);
    --bf-gradient-light: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    --bf-gradient-gray: linear-gradient(135deg, #ECF0F1 0%, #BDC3C7 100%);
    --bf-gradient-success: linear-gradient(135deg, #51cf66 0%, #368a5e 100%);
    --bf-gradient-danger: linear-gradient(135deg, #ff6b6b 0%, #c96660 100%);
    --bf-gradient-warning: linear-gradient(135deg, #ffc947 0%, #f59f00 100%);
    --bf-gradient-info: linear-gradient(135deg, #74c0fc 0%, #339af0 100%);
    --bf-gradient-error: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);  /* Standard red */
    
    /* Typography - Font Families */
    --bf-font-primary: 'Jost', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    --bf-font-secondary: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    --bf-font-mono: 'Courier New', Courier, monospace;
    
    /* Typography - Font Sizes */
    --bf-text-xs: 0.75rem;     /* 12px */
    --bf-text-sm: 0.875rem;    /* 14px */
    --bf-text-base: 1rem;      /* 16px */
    --bf-text-lg: 1.125rem;    /* 18px */
    --bf-text-xl: 1.25rem;     /* 20px */
    --bf-text-2xl: 1.5rem;     /* 24px */
    --bf-text-3xl: 1.875rem;   /* 30px */
    --bf-text-4xl: 2.25rem;    /* 36px */
    --bf-text-5xl: 3rem;       /* 48px */
    
    /* Typography - Font Weights */
    --bf-font-light: 300;
    --bf-font-normal: 400;
    --bf-font-medium: 500;
    --bf-font-semibold: 600;
    --bf-font-bold: 700;
    
    /* Typography - Line Heights */
    --bf-leading-tight: 1.25;
    --bf-leading-normal: 1.5;
    --bf-leading-relaxed: 1.75;
    --bf-leading-loose: 2;
    
    /* Spacing Scale */
    --bf-space-0: 0;
    --bf-space-1: 0.25rem;     /* 4px */
    --bf-space-2: 0.5rem;      /* 8px */
    --bf-space-3: 0.75rem;     /* 12px */
    --bf-space-4: 1rem;        /* 16px */
    --bf-space-5: 1.25rem;     /* 20px */
    --bf-space-6: 1.5rem;      /* 24px */
    --bf-space-8: 2rem;        /* 32px */
    --bf-space-10: 2.5rem;     /* 40px */
    --bf-space-12: 3rem;       /* 48px */
    --bf-space-16: 4rem;       /* 64px */
    
    /* Border Radius */
    --bf-radius-sm: 10px;
    --bf-radius-md: 18px;
    --bf-radius-lg: 28px;
    --bf-radius-xl: 36px;
    --bf-radius-btn: 999px;
    --bf-radius-full: 50%;
    
    /* Shadows */
    --bf-shadow-sm: 0 2px 8px rgba(145, 82, 222, 0.05);
    --bf-shadow: 0 8px 32px rgba(145, 82, 222, 0.10);
    --bf-shadow-md: 0 12px 40px rgba(145, 82, 222, 0.12);
    --bf-shadow-lg: 0 16px 48px rgba(145, 82, 222, 0.15);
    --bf-shadow-xl: 0 20px 56px rgba(145, 82, 222, 0.18);
    --bf-shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);
    
    /* Transitions */
    --bf-transition-fast: 150ms ease-in-out;
    --bf-transition-base: 250ms ease-in-out;
    --bf-transition-slow: 350ms ease-in-out;
    
    /* Z-Index Scale */
    --bf-z-0: 0;
    --bf-z-10: 10;
    --bf-z-20: 20;
    --bf-z-30: 30;
    --bf-z-40: 40;
    --bf-z-50: 50;
    --bf-z-modal: 1000;
    --bf-z-tooltip: 1100;
    --bf-z-notification: 1200;
}

/* ========================================
   Base Styles
   ======================================== */
* {
    box-sizing: border-box;
}

html, body {
    font-family: var(--bf-font-secondary);
    font-size: var(--bf-text-base);
    line-height: var(--bf-leading-normal);
    color: var(--bf-gray-dark);
    background-color: var(--bf-gray-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Typography Classes
   ======================================== */
.bf-heading-1 {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-5xl);
    font-weight: var(--bf-font-bold);
    line-height: var(--bf-leading-tight);
    color: var(--bf-gray-dark);
    margin-bottom: var(--bf-space-4);
}

.bf-heading-2 {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-4xl);
    font-weight: var(--bf-font-semibold);
    line-height: var(--bf-leading-tight);
    color: var(--bf-gray-dark);
    margin-bottom: var(--bf-space-3);
}

.bf-heading-3 {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-3xl);
    font-weight: var(--bf-font-semibold);
    line-height: var(--bf-leading-normal);
    color: var(--bf-gray-dark);
    margin-bottom: var(--bf-space-3);
}

.bf-heading-4 {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-2xl);
    font-weight: var(--bf-font-medium);
    line-height: var(--bf-leading-normal);
    color: var(--bf-gray-dark);
    margin-bottom: var(--bf-space-2);
}

.bf-text-body {
    font-family: var(--bf-font-secondary);
    font-size: var(--bf-text-base);
    font-weight: var(--bf-font-normal);
    line-height: var(--bf-leading-relaxed);
    color: var(--bf-gray-dark);
}

.bf-text-small {
    font-family: var(--bf-font-secondary);
    font-size: var(--bf-text-sm);
    font-weight: var(--bf-font-normal);
    line-height: var(--bf-leading-normal);
    color: var(--bf-gray-medium);
}

/* ========================================
   Button Styles
   ======================================== */
.bf-btn {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-sm);
    font-weight: var(--bf-font-medium);
    padding: var(--bf-space-2) var(--bf-space-4);
    border-radius: 0.375rem;
    border: none;
    cursor: pointer;
    transition: all var(--bf-transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--bf-space-2);
    text-decoration: none;
    outline: none;
    position: relative;
    overflow: hidden;
}

.bf-btn-primary {
    background: var(--bf-gradient-primary);
    color: var(--bf-white);
    box-shadow: var(--bf-shadow);
}

.bf-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--bf-shadow-lg);
}

.bf-btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--bf-shadow-sm);
}

.bf-btn-secondary {
    background: var(--bf-white);
    color: var(--bf-purple-primary);
    border: 2px solid var(--bf-purple-primary);
}

.bf-btn-secondary:hover {
    background: var(--bf-purple-primary) !important;
    color: var(--bf-white) !important;
    border-color: var(--bf-purple-primary) !important;
}

.bf-btn-secondary:active {
    background: var(--bf-purple-dark);
    color: var(--bf-white);
    border-color: var(--bf-purple-dark);
}

.bf-btn-success {
    background: var(--bf-gradient-success);
    color: var(--bf-white);
    box-shadow: var(--bf-shadow);
}

.bf-btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--bf-shadow-lg);
}

.bf-btn-success:active {
    transform: translateY(0);
    background: var(--bf-success);
    box-shadow: var(--bf-shadow-sm);
}

.bf-btn-error {
    background: var(--bf-gradient-error);
    color: #FFFFFF !important;
    box-shadow: var(--bf-shadow);
}

.bf-btn-error:hover {
    transform: translateY(-2px);
    box-shadow: var(--bf-shadow-lg);
}

.bf-btn-error:active {
    transform: translateY(0);
    background: var(--bf-error);
    box-shadow: var(--bf-shadow-sm);
}

.bf-btn-warning {
    background: var(--bf-gradient-warning);
    color: var(--bf-white);
    box-shadow: var(--bf-shadow);
}

.bf-btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: var(--bf-shadow-lg);
}

.bf-btn-warning:active {
    transform: translateY(0);
    background: var(--bf-warning);
    box-shadow: var(--bf-shadow-sm);
}

.bf-btn-sm {
    font-size: var(--bf-text-sm);
    padding: var(--bf-space-2) var(--bf-space-4);
}

.bf-btn-lg {
    font-size: var(--bf-text-lg);
    padding: var(--bf-space-4) var(--bf-space-8);
}

/* ========================================
   Card Components
   ======================================== */
.bf-card {
    background: var(--bf-white);
    border-radius: var(--bf-radius-lg);
    box-shadow: var(--bf-shadow);
    padding: var(--bf-space-6);
    margin-bottom: var(--bf-space-6);
    transition: all var(--bf-transition-base);
}

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

.bf-card-header {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-xl);
    font-weight: var(--bf-font-semibold);
    color: var(--bf-gray-dark);
    margin-bottom: var(--bf-space-4);
    padding-bottom: var(--bf-space-3);
    border-bottom: 2px solid var(--bf-gray-light);
}

.bf-card-body {
    font-family: var(--bf-font-secondary);
    font-size: var(--bf-text-base);
    color: var(--bf-gray-dark);
}

/* ========================================
   Glassmorphism Utilities
   ======================================== */
.bf-glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.bf-glass-light {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid rgba(209, 213, 219, 0.3);
}

.bf-glass-card {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(145, 82, 222, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.bf-glass-card:hover {
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 16px 48px rgba(145, 82, 222, 0.12);
    transform: translateY(-2px);
}

/* ========================================
   Form Elements
   ======================================== */
.bf-input,
.bf-select,
.bf-textarea {
    font-family: var(--bf-font-secondary);
    font-size: var(--bf-text-base);
    padding: var(--bf-space-3) var(--bf-space-4);
    border: 2px solid var(--bf-gray-light);
    border-radius: var(--bf-radius-md);
    background: var(--bf-white);
    color: var(--bf-gray-dark);
    transition: all var(--bf-transition-fast);
    width: 100%;
}

.bf-input:focus,
.bf-select:focus,
.bf-textarea:focus {
    outline: none;
    border-color: var(--bf-purple-primary);
    box-shadow: 0 0 0 3px rgba(145, 82, 222, 0.1);
}

.bf-input::placeholder,
.bf-textarea::placeholder {
    color: #9CA3AF;
    opacity: 1;
}

.bf-label {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-sm);
    font-weight: var(--bf-font-medium);
    color: var(--bf-gray-dark);
    margin-bottom: var(--bf-space-2);
    display: block;
}

/* ========================================
   Table Styles
   ======================================== */
.bf-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--bf-font-secondary);
}

.bf-table thead {
    background: var(--bf-gradient-gray);
}

.bf-table th {
    font-family: var(--bf-font-primary);
    font-weight: var(--bf-font-semibold);
    padding: var(--bf-space-3) var(--bf-space-4);
    text-align: left;
    color: var(--bf-gray-dark);
    border-bottom: 2px solid var(--bf-gray-light);
}

.bf-table td {
    padding: var(--bf-space-3) var(--bf-space-4);
    border-bottom: 1px solid var(--bf-gray-light);
    color: var(--bf-gray-dark);
}

.bf-table tbody tr:hover {
    background: var(--bf-gray-lighter);
}

/* ========================================
   Badge & Tag Styles
   ======================================== */
.bf-badge {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-xs);
    font-weight: var(--bf-font-semibold);
    padding: var(--bf-space-1) var(--bf-space-3);
    border-radius: var(--bf-radius-btn);
    display: inline-flex;
    align-items: center;
    gap: var(--bf-space-1);
}

.bf-badge-primary {
    background: var(--bf-purple-light);
    color: var(--bf-purple-dark);
}

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

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

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

/* ========================================
   Modal Styles
   ======================================== */
.bf-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--bf-z-modal);
}

.bf-modal {
    background: var(--bf-white);
    border-radius: var(--bf-radius-lg);
    box-shadow: var(--bf-shadow-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--bf-space-8);
}

.bf-modal-header {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-2xl);
    font-weight: var(--bf-font-semibold);
    color: var(--bf-gray-dark);
    margin-bottom: var(--bf-space-4);
}

/* ========================================
   Alert/Notification Styles
   ======================================== */
.bf-alert {
    --alert-color: var(--bf-gray-dark);
    --alert-rgb: 44, 62, 80;
    
    padding: var(--bf-space-4);
    border-radius: var(--bf-radius-md);
    margin-bottom: var(--bf-space-4);
    display: flex;
    align-items: center;
    gap: var(--bf-space-3);
    font-family: var(--bf-font-secondary);
    background: linear-gradient(135deg, rgba(var(--alert-rgb), 0.1) 0%, rgba(var(--alert-rgb), 0.05) 100%);
    border-left: 4px solid var(--alert-color);
    color: var(--alert-color);
}

.bf-alert-success {
    --alert-color: var(--bf-success);
    --alert-rgb: 39, 174, 96;
}

.bf-alert-error {
    --alert-color: var(--bf-error);
    --alert-rgb: 231, 76, 60;
}

.bf-alert-warning {
    --alert-color: var(--bf-warning);
    --alert-rgb: 243, 156, 18;
}

.bf-alert-info {
    --alert-color: var(--bf-info);
    --alert-rgb: 52, 152, 219;
}

/* ========================================
   Loading States
   ======================================== */
.bf-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--bf-gray-light);
    border-top-color: var(--bf-purple-primary);
    border-radius: 50%;
    animation: bf-spin 1s linear infinite;
}

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

.bf-skeleton {
    background: linear-gradient(90deg, var(--bf-gray-light) 25%, var(--bf-gray-lighter) 50%, var(--bf-gray-light) 75%);
    background-size: 200% 100%;
    animation: bf-loading 1.5s ease-in-out infinite;
    border-radius: var(--bf-radius-sm);
}

@keyframes bf-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ========================================
   Utility Classes - Optimized
   ======================================== */

/* Text Color Utilities - WCAG AA Compliant */
.bf-text-primary {
    color: var(--bf-text-primary);
}

.bf-text-secondary {
    color: var(--bf-text-secondary);
}

.bf-text-tertiary {
    color: var(--bf-text-tertiary);
}

.bf-text-disabled {
    color: var(--bf-text-disabled);
}

.bf-text-muted {
    color: var(--bf-text-muted);
}

/* Text Alignment */
[class*="bf-text-"] {
    font-family: inherit;
}
.bf-text-center { text-align: center; }
.bf-text-left { text-align: left; }
.bf-text-right { text-align: right; }

/* Spacing Utilities - Using CSS attribute selectors to reduce duplication */
[class*="bf-mt-"], [class*="bf-mb-"], [class*="bf-p-"] {
    transition: inherit;
}

/* Margins */
.bf-mt-1 { margin-top: var(--bf-space-1); }
.bf-mt-2 { margin-top: var(--bf-space-2); }
.bf-mt-3 { margin-top: var(--bf-space-3); }
.bf-mt-4 { margin-top: var(--bf-space-4); }
.bf-mt-6 { margin-top: var(--bf-space-6); }
.bf-mt-8 { margin-top: var(--bf-space-8); }

.bf-mb-1 { margin-bottom: var(--bf-space-1); }
.bf-mb-2 { margin-bottom: var(--bf-space-2); }
.bf-mb-3 { margin-bottom: var(--bf-space-3); }
.bf-mb-4 { margin-bottom: var(--bf-space-4); }
.bf-mb-6 { margin-bottom: var(--bf-space-6); }
.bf-mb-8 { margin-bottom: var(--bf-space-8); }

/* Padding */
.bf-p-1 { padding: var(--bf-space-1); }
.bf-p-2 { padding: var(--bf-space-2); }
.bf-p-3 { padding: var(--bf-space-3); }
.bf-p-4 { padding: var(--bf-space-4); }
.bf-p-6 { padding: var(--bf-space-6); }
.bf-p-8 { padding: var(--bf-space-8); }

/* Shadows & Borders - Using attribute selectors */
[class*="bf-shadow"] {
    transition: box-shadow var(--bf-transition-base);
}
.bf-shadow-sm { box-shadow: var(--bf-shadow-sm); }
.bf-shadow { box-shadow: var(--bf-shadow); }
.bf-shadow-lg { box-shadow: var(--bf-shadow-lg); }
.bf-shadow-xl { box-shadow: var(--bf-shadow-xl); }

[class*="bf-rounded"] {
    overflow: hidden;
}
.bf-rounded-sm { border-radius: var(--bf-radius-sm); }
.bf-rounded { border-radius: var(--bf-radius-md); }
.bf-rounded-lg { border-radius: var(--bf-radius-lg); }
.bf-rounded-full { border-radius: var(--bf-radius-full); }

/* ========================================
   Responsive Utilities
   ======================================== */
@media (max-width: 768px) {
    .bf-hide-mobile { display: none; }
    
    .bf-heading-1 { font-size: var(--bf-text-3xl); }
    .bf-heading-2 { font-size: var(--bf-text-2xl); }
    .bf-heading-3 { font-size: var(--bf-text-xl); }
    
    .bf-card { padding: var(--bf-space-4); }
    .bf-modal { padding: var(--bf-space-4); }
}

@media (min-width: 769px) {
    .bf-hide-desktop { display: none; }
}

/* ========================================
   Navigation Components
   ======================================== */

/* Header Navigation */
.bf-header {
    background: var(--bf-white);
    border-bottom: 1px solid var(--bf-gray-light);
    box-shadow: var(--bf-shadow-sm);
    padding: var(--bf-space-4) var(--bf-space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: var(--bf-z-40);
}

.bf-header-left {
    display: flex;
    align-items: center;
    gap: var(--bf-space-6);
    flex: 1;
}

.bf-header-content {
    display: flex;
    align-items: center;
    gap: var(--bf-space-4);
}

.bf-header-right {
    display: flex;
    align-items: center;
    gap: var(--bf-space-4);
}

/* Brand Logo */
.bf-brand-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.bf-logo-img {
    height: 32px;
    width: auto;
}

/* Main Navigation */
.bf-main-nav {
    display: flex;
    align-items: center;
    gap: var(--bf-space-2);
}

.bf-nav-link {
    display: flex;
    align-items: center;
    gap: var(--bf-space-2);
    padding: var(--bf-space-3) var(--bf-space-4);
    border-radius: var(--bf-radius-md);
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-sm);
    font-weight: var(--bf-font-medium);
    color: var(--bf-gray-dark);
    text-decoration: none;
    transition: all var(--bf-transition-base);
    cursor: pointer;
    border: none;
    background: transparent;
}

.bf-nav-link:hover {
    background: var(--bf-gray-lighter);
    color: var(--bf-purple-primary);
}

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

.bf-nav-link i {
    font-size: var(--bf-text-base);
}

/* Navigation Dropdowns */
.bf-nav-dropdown {
    position: relative;
}

.bf-dropdown-trigger {
    position: relative;
}

.bf-dropdown-trigger .fa-chevron-down {
    font-size: var(--bf-text-xs);
    transition: transform var(--bf-transition-base);
}

.bf-nav-dropdown.open .fa-chevron-down {
    transform: rotate(180deg);
}

.bf-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--bf-white);
    border: 1px solid var(--bf-gray-light);
    border-radius: var(--bf-radius-md);
    box-shadow: var(--bf-shadow-lg);
    z-index: var(--bf-z-50);
    display: none;
    padding: var(--bf-space-2);
    margin-top: var(--bf-space-1);
}

.bf-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--bf-space-2);
    padding: var(--bf-space-3) var(--bf-space-4);
    border-radius: var(--bf-radius-sm);
    font-family: var(--bf-font-secondary);
    font-size: var(--bf-text-sm);
    color: var(--bf-gray-dark);
    text-decoration: none;
    transition: all var(--bf-transition-base);
    position: relative;
}

.bf-dropdown-item:hover {
    background: var(--bf-gray-lighter);
    color: var(--bf-purple-primary);
}

.bf-dropdown-item.active {
    background: var(--bf-purple-light);
    color: var(--bf-purple-dark);
}

.bf-dropdown-item i {
    width: 16px;
    text-align: center;
    font-size: var(--bf-text-sm);
}

/* Premium Badge */
.bf-nav-premium {
    position: relative;
}

.bf-premium-badge {
    background: var(--bf-gradient-primary);
    color: var(--bf-white);
    font-size: var(--bf-text-xs);
    font-weight: var(--bf-font-semibold);
    padding: var(--bf-space-1) var(--bf-space-2);
    border-radius: var(--bf-radius-btn);
    margin-left: var(--bf-space-2);
}

/* Mobile Menu Button */
.bf-mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    border-radius: var(--bf-radius-sm);
    cursor: pointer;
    transition: all var(--bf-transition-base);
    color: var(--bf-gray-dark);
}

.bf-mobile-menu-btn:hover {
    background: var(--bf-gray-lighter);
    color: var(--bf-purple-primary);
}

/* Mobile Navigation */
.bf-mobile-nav-item {
    display: flex;
    align-items: center;
    gap: var(--bf-space-3);
    padding: var(--bf-space-3) var(--bf-space-4);
    border-radius: var(--bf-radius-sm);
    font-family: var(--bf-font-secondary);
    font-size: var(--bf-text-base);
    font-weight: var(--bf-font-medium);
    color: var(--bf-gray-dark);
    text-decoration: none;
    transition: all var(--bf-transition-base);
}

.bf-mobile-nav-item:hover {
    background: var(--bf-gray-lighter);
    color: var(--bf-purple-primary);
}

.bf-mobile-nav-item.active {
    background: var(--bf-purple-primary);
    color: var(--bf-white);
}

.bf-mobile-nav-item i {
    width: 20px;
    text-align: center;
    font-size: var(--bf-text-base);
}

.bf-mobile-nav-section {
    margin-top: var(--bf-space-6);
}

.bf-mobile-nav-title {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-sm);
    font-weight: var(--bf-font-semibold);
    color: var(--bf-gray-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--bf-space-2) var(--bf-space-4);
    margin-bottom: var(--bf-space-2);
}

/* Page Title */
.bf-page-title {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-2xl);
    font-weight: var(--bf-font-semibold);
    color: var(--bf-gray-dark);
    margin: 0;
}

/* User Menu */
.bf-user-menu {
    position: relative;
}

.bf-user-btn {
    display: flex;
    align-items: center;
    gap: var(--bf-space-2);
    padding: var(--bf-space-2) var(--bf-space-3);
    border: none;
    background: transparent;
    border-radius: var(--bf-radius-md);
    cursor: pointer;
    transition: all var(--bf-transition-base);
}

.bf-user-btn:hover {
    background: var(--bf-gray-lighter);
}

.bf-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--bf-radius-full);
    object-fit: cover;
}

.bf-user-name {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-sm);
    font-weight: var(--bf-font-medium);
    color: var(--bf-gray-dark);
}

.bf-user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: var(--bf-white);
    border: 1px solid var(--bf-gray-light);
    border-radius: var(--bf-radius-md);
    box-shadow: var(--bf-shadow-lg);
    z-index: var(--bf-z-50);
    padding: var(--bf-space-2);
    margin-top: var(--bf-space-1);
}

.bf-dropdown-divider {
    height: 1px;
    background: var(--bf-gray-light);
    margin: var(--bf-space-2) 0;
    border: none;
}

.bf-dropdown-danger {
    color: var(--bf-error) !important;
}

.bf-dropdown-danger:hover {
    background: rgba(231, 76, 60, 0.1) !important;
    color: var(--bf-error) !important;
}

/* Notifications */
.bf-notification-container {
    position: relative;
}

.bf-notification-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    border-radius: var(--bf-radius-md);
    cursor: pointer;
    transition: all var(--bf-transition-base);
    color: var(--bf-gray-dark);
    position: relative;
}

.bf-notification-btn:hover {
    background: var(--bf-gray-lighter);
    color: var(--bf-purple-primary);
}

.bf-notification-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--bf-error);
    color: var(--bf-white);
    font-size: var(--bf-text-xs);
    font-weight: var(--bf-font-semibold);
    padding: var(--bf-space-1) var(--bf-space-2);
    border-radius: var(--bf-radius-btn);
    min-width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bf-notification-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 350px;
    max-width: 90vw;
    background: var(--bf-white);
    border: 1px solid var(--bf-gray-light);
    border-radius: var(--bf-radius-md);
    box-shadow: var(--bf-shadow-lg);
    z-index: var(--bf-z-50);
    margin-top: var(--bf-space-1);
}

.bf-notification-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--bf-space-4);
    border-bottom: 1px solid var(--bf-gray-light);
}

.bf-notification-title {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-base);
    font-weight: var(--bf-font-semibold);
    color: var(--bf-gray-dark);
    margin: 0;
}

.bf-notifications-list {
    max-height: 400px;
    overflow-y: auto;
}

.bf-notification-item {
    display: flex;
    align-items: flex-start;
    gap: var(--bf-space-3);
    padding: var(--bf-space-4);
    border-bottom: 1px solid var(--bf-gray-light);
    transition: all var(--bf-transition-base);
}

.bf-notification-item:hover {
    background: var(--bf-gray-lighter);
}

.bf-notification-item.unread {
    background: rgba(145, 82, 222, 0.05);
    border-left: 3px solid var(--bf-purple-primary);
}

.bf-notification-content {
    flex: 1;
}

.bf-notification-actions {
    display: flex;
    gap: var(--bf-space-1);
}

/* Main Content Area */
.bf-main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.bf-page-content {
    flex: 1;
    padding: var(--bf-space-6);
}

/* Responsive Navigation */
@media (max-width: 1023px) {
    .bf-main-nav {
        display: none;
    }
    
    .bf-mobile-menu-btn {
        display: flex;
    }
    
    .bf-header-content {
        display: none;
    }
}

@media (min-width: 1024px) {
    .bf-mobile-menu-btn {
        display: none;
    }
    
    .bf-main-nav {
        display: flex;
    }
    
    .bf-header-content {
        display: flex;
    }
}

/* ========================================
   Pagination Component
   ======================================== */
.bf-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--bf-space-2) 0;
}

.bf-pagination-nav {
    display: flex;
    align-items: center;
}

.bf-pagination-list {
    display: flex;
    align-items: center;
    gap: var(--bf-space-2);
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Base pagination button - circular design */
.bf-pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--bf-space-3);
    border-radius: var(--bf-radius-full);
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-sm);
    font-weight: var(--bf-font-medium);
    text-decoration: none;
    transition: all var(--bf-transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

/* Default page number button */
.bf-pagination-btn-default {
    background: #FFFFFF;
    color: #374151;
    border-color: #E5E7EB;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.bf-pagination-btn-default:hover {
    background: #F5F6FA;
    border-color: #7D69B8;
    color: #7D69B8;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(125, 105, 184, 0.15);
}

/* Active page button */
.bf-pagination-btn-active {
    background: #7D69B8;
    color: #FFFFFF;
    border-color: #7D69B8;
    box-shadow: 0 4px 12px rgba(125, 105, 184, 0.3);
}

/* Navigation buttons (prev/next) */
.bf-pagination-btn-nav {
    background: #FFFFFF;
    color: #374151;
    border-color: #E5E7EB;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.bf-pagination-btn-nav:hover {
    background: #7D69B8;
    color: #FFFFFF;
    border-color: #7D69B8;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(125, 105, 184, 0.3);
}

/* Disabled state */
.bf-pagination-btn-disabled {
    background: #F5F6FA;
    color: #9CA3AF;
    border-color: #E5E7EB;
    cursor: not-allowed;
    opacity: 0.6;
}

/* Ellipsis */
.bf-pagination-ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    color: #6B7280;
    font-weight: 500;
    letter-spacing: 2px;
}

/* Info text styling */
.bf-pagination-info {
    color: #374151;
}

/* Per-page select */
.bf-pagination-select {
    padding: var(--bf-space-2) var(--bf-space-3);
    border: 2px solid var(--bf-gray-light);
    border-radius: var(--bf-radius-full);
    background: var(--bf-white);
    color: var(--bf-text-secondary);
    font-family: var(--bf-font-secondary);
    font-size: var(--bf-text-sm);
    cursor: pointer;
    transition: all var(--bf-transition-base);
}

.bf-pagination-select:hover {
    border-color: var(--bf-purple-primary);
}

.bf-pagination-select:focus {
    outline: none;
    border-color: var(--bf-purple-primary);
    box-shadow: 0 0 0 3px rgba(125, 105, 184, 0.15);
}

/* Mobile pagination */
.bf-pagination-mobile .bf-pagination-btn {
    min-width: auto;
    padding: var(--bf-space-2) var(--bf-space-4);
    border-radius: var(--bf-radius-md);
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .bf-pagination-btn {
        min-width: 36px;
        height: 36px;
        font-size: var(--bf-text-xs);
    }

    .bf-pagination-list {
        gap: var(--bf-space-1);
    }
}

/* ========================================
   Tab Navigation Component
   ======================================== */
.bf-tabs {
    display: flex;
    border-bottom: 2px solid var(--bf-gray-light);
    gap: var(--bf-space-1);
}

.bf-tab {
    display: flex;
    align-items: center;
    gap: var(--bf-space-2);
    padding: var(--bf-space-3) var(--bf-space-4);
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-sm);
    font-weight: var(--bf-font-medium);
    color: var(--bf-text-secondary);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all var(--bf-transition-base);
}

.bf-tab:hover {
    color: var(--bf-purple-primary);
    border-bottom-color: var(--bf-gray-medium);
}

.bf-tab:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(125, 105, 184, 0.2);
    border-radius: var(--bf-radius-sm) var(--bf-radius-sm) 0 0;
}

.bf-tab.active,
.bf-tab[aria-selected="true"] {
    color: var(--bf-purple-dark);
    border-bottom-color: var(--bf-purple-primary);
    font-weight: var(--bf-font-semibold);
}

/* Tab variants */
.bf-tab--warning.active,
.bf-tab--warning[aria-selected="true"] {
    color: #b45309;
    border-bottom-color: #eab308;
}

.bf-tab--warning:hover {
    color: #b45309;
    border-bottom-color: #fcd34d;
}

.bf-tab--error.active,
.bf-tab--error[aria-selected="true"] {
    color: #dc2626;
    border-bottom-color: #dc2626;
}

.bf-tab--error:hover {
    color: #dc2626;
    border-bottom-color: #fca5a5;
}

/* Tab icon */
.bf-tab-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* Tab badge */
.bf-tab-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 var(--bf-space-2);
    font-size: var(--bf-text-xs);
    font-weight: var(--bf-font-semibold);
    border-radius: var(--bf-radius-full);
}

.bf-tab-badge--primary {
    background: rgba(125, 105, 184, 0.15);
    color: var(--bf-purple-dark);
}

.bf-tab-badge--warning {
    background: rgba(234, 179, 8, 0.15);
    color: #b45309;
}

.bf-tab-badge--error {
    background: rgba(220, 38, 38, 0.15);
    color: #dc2626;
}

/* Tab content */
.bf-tab-pane {
    display: none;
}

.bf-tab-pane.active {
    display: block;
}

/* ========================================
   Summary Stats Cards
   ======================================== */
.bf-stats-grid {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: var(--bf-space-4);
}

@media (min-width: 640px) {
    .bf-stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .bf-stats-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.bf-stat-card {
    background: var(--bf-white);
    border-radius: var(--bf-radius-lg);
    padding: var(--bf-space-5);
    box-shadow: var(--bf-shadow-sm);
    transition: all var(--bf-transition-base);
}

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

.bf-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--bf-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.bf-stat-icon--purple {
    background: rgba(125, 105, 184, 0.15);
    color: var(--bf-purple-dark);
}

.bf-stat-icon--green {
    background: rgba(34, 197, 94, 0.15);
    color: #16a34a;
}

.bf-stat-icon--yellow {
    background: rgba(234, 179, 8, 0.15);
    color: #b45309;
}

.bf-stat-icon--red {
    background: rgba(220, 38, 38, 0.15);
    color: #dc2626;
}

.bf-stat-value {
    font-family: var(--bf-font-primary);
    font-size: var(--bf-text-3xl);
    font-weight: var(--bf-font-bold);
    color: var(--bf-text-primary);
    line-height: 1;
}

.bf-stat-label {
    font-size: var(--bf-text-sm);
    font-weight: var(--bf-font-medium);
    color: var(--bf-text-tertiary);
}

/* ========================================
   Per-page Select
   ======================================== */
.bf-per-page-select {
    padding: var(--bf-space-2) var(--bf-space-3);
    padding-right: var(--bf-space-8);
    border: 1px solid #E5E7EB;
    border-radius: var(--bf-radius-sm);
    background-color: var(--bf-white);
    color: var(--bf-text-secondary);
    font-family: var(--bf-font-secondary);
    font-size: var(--bf-text-sm);
    cursor: pointer;
    transition: all var(--bf-transition-fast);
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236B7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.25em 1.25em;
}

.bf-per-page-select:hover {
    border-color: var(--bf-purple-primary);
}

.bf-per-page-select:focus {
    outline: none;
    border-color: var(--bf-purple-primary);
    box-shadow: 0 0 0 3px rgba(125, 105, 184, 0.1);
}

/* ========================================
   Dark Mode Support
   ======================================== */
@media (prefers-color-scheme: dark) {
    :root {
        --bf-gray-dark: #E0E0E0;
        --bf-gray-medium: #A0A0A0;
        --bf-gray-light: #2A2A2A;
        --bf-gray-lighter: #1A1A1A;
        --bf-white: #121212;
        --bf-white-soft: #1E1E1E;
    }
    
    .bf-card,
    .bf-modal {
        background: var(--bf-white);
        color: var(--bf-gray-dark);
    }
    
    .bf-input,
    .bf-select,
    .bf-textarea {
        background: var(--bf-gray-light);
        color: var(--bf-gray-dark);
        border-color: var(--bf-gray-medium);
    }
}