/* SmartRAG Documentation - Modern Design System - Updated */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    
    /* 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;
    
    /* Dark Theme */
    --dark-bg: #0f172a;
    --dark-surface: #1e293b;
    --dark-border: #334155;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Consolas', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* 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: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --white: #0f172a;
    --gray-50: #1e293b;
    --gray-100: #334155;
    --gray-200: #475569;
    --gray-300: #64748b;
    --gray-400: #94a3b8;
    --gray-500: #cbd5e1;
    --gray-600: #e2e8f0;
    --gray-700: #f1f5f9;
    --gray-800: #f8fafc;
    --gray-900: #ffffff;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

[data-theme="dark"] body {
    background-color: var(--dark-bg);
    color: var(--gray-300);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
}

[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6 {
    color: var(--gray-100);
}

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

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-sm) 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar .container {
    max-width: 100%;
    padding: 0 var(--spacing-sm);
}

.navbar-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.navbar-nav::-webkit-scrollbar {
    display: none;
}

.navbar-nav {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

[data-theme="dark"] .navbar {
    background: rgba(15, 23, 42, 0.95);
    border-bottom-color: var(--dark-border);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--gray-900) !important;
    text-decoration: none;
    transition: var(--transition);
}

[data-theme="dark"] .navbar-brand {
    color: var(--gray-100) !important;
}

.navbar-nav .nav-link {
    color: var(--gray-600) !important;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm) !important;
    margin: 0 var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    white-space: nowrap;
    font-size: 0.9rem;
}

[data-theme="dark"] .navbar-nav .nav-link {
    color: var(--gray-400) !important;
}

.navbar-nav .nav-link:hover {
    color: var(--primary) !important;
    background-color: var(--gray-100);
}

[data-theme="dark"] .navbar-nav .nav-link:hover {
    color: var(--primary-light) !important;
    background-color: var(--dark-surface);
}

/* Navbar Toggler */
.navbar-toggler {
    border: none;
    padding: 0.25rem 0.5rem;
    background: transparent;
    color: var(--white);
    font-size: 1.25rem;
}

.navbar-toggler:focus {
    box-shadow: none;
    outline: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 1.5em;
    height: 1.5em;
}

[data-theme="dark"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Mobile Navigation */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background-color: var(--primary);
        margin-top: 0.5rem;
        border-radius: var(--radius-sm);
        padding: 1rem;
    }
    
    [data-theme="dark"] .navbar-collapse {
        background-color: var(--dark-surface);
        border: 1px solid var(--dark-border);
    }
    
    .navbar-nav .nav-item {
        margin-bottom: 0.5rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.75rem 1rem;
        border-radius: var(--radius-sm);
    }
    
    .navbar-nav .dropdown-menu {
        position: static;
        float: none;
        width: 100%;
        margin-top: 0.5rem;
        background-color: rgba(255, 255, 255, 0.1);
        border: none;
        box-shadow: none;
    }
    
    [data-theme="dark"] .navbar-nav .dropdown-menu {
        background-color: rgba(255, 255, 255, 0.05);
    }
}

/* Dropdown Styles */
.navbar-nav .dropdown-menu {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
}

[data-theme="dark"] .navbar-nav .dropdown-menu {
    background-color: var(--dark-surface);
    border-color: var(--gray-700);
}

.navbar-nav .dropdown-item {
    color: var(--gray-700);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

[data-theme="dark"] .navbar-nav .dropdown-item {
    color: var(--gray-300);
}

.navbar-nav .dropdown-item:hover {
    background-color: var(--gray-100);
    color: var(--primary);
}

[data-theme="dark"] .navbar-nav .dropdown-item:hover {
    background-color: var(--gray-700);
    color: var(--primary-light);
}

.navbar-nav .dropdown-toggle::after {
    margin-left: 0.5rem;
}

/* Main Content */
.main-content {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--gray-200);
    text-align: center;
}

[data-theme="dark"] .page-header {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-surface) 100%);
    border-bottom-color: var(--dark-border);
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

[data-theme="dark"] .page-title {
    color: var(--gray-100);
}

.page-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

[data-theme="dark"] .page-description {
    color: var(--gray-400);
}

/* Page Content */
.page-content {
    padding: var(--spacing-2xl) 0;
}

.content-section {
    margin-bottom: var(--spacing-2xl);
}

.content-section h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--primary);
    padding-bottom: var(--spacing-sm);
}

[data-theme="dark"] .content-section h2 {
    color: var(--gray-100);
}

.content-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

[data-theme="dark"] .content-section h3 {
    color: var(--gray-200);
}

.content-section p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

[data-theme="dark"] .content-section p {
    color: var(--gray-400);
}

/* Code Examples */
.code-example {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin: var(--spacing-lg) 0;
}

[data-theme="dark"] .code-example {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.code-example pre {
    margin: 0;
    padding: var(--spacing-lg);
    background: none;
    color: var(--gray-700);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    overflow-x: auto;
}

[data-theme="dark"] .code-example pre {
    color: var(--gray-300);
}

/* Provider Tabs */
.provider-tabs, .storage-tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.provider-tab, .storage-tab {
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
}

[data-theme="dark"] .provider-tab,
[data-theme="dark"] .storage-tab {
    background: var(--dark-surface);
    border-color: var(--dark-border);
    color: var(--gray-400);
}

.provider-tab.active, .storage-tab.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.provider-content, .storage-content {
    position: relative;
}

.provider-panel, .storage-panel {
    display: none;
}

.provider-panel.active, .storage-panel.active {
    display: block;
}

/* Tables */
.table-responsive {
    margin: var(--spacing-lg) 0;
}

.table {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

[data-theme="dark"] .table {
    background: var(--dark-surface);
}

.table thead th {
    background: var(--primary);
    color: white;
    font-weight: 600;
    border: none;
    padding: var(--spacing-md);
}

.table tbody td {
    border-color: var(--gray-200);
    padding: var(--spacing-md);
    color: var(--gray-700);
}

[data-theme="dark"] .table tbody td {
    border-color: var(--dark-border);
    color: var(--gray-300);
}

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

[data-theme="dark"] .table tbody tr:hover {
    background: var(--dark-bg);
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    overflow: hidden;
}

[data-theme="dark"] .hero-section {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-surface) 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%236366f1" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

[data-theme="dark"] .hero-title {
    color: var(--gray-100);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

[data-theme="dark"] .hero-description {
    color: var(--gray-400);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    z-index: 2;
}

.code-window {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

[data-theme="dark"] .code-window {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.code-header {
    background: var(--gray-100);
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-200);
}

[data-theme="dark"] .code-header {
    background: var(--dark-bg);
    border-bottom-color: var(--dark-border);
}

.code-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.code-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-400);
}

.code-dots span:nth-child(1) { background: #ef4444; }
.code-dots span:nth-child(2) { background: #f59e0b; }
.code-dots span:nth-child(3) { background: #10b981; }

.code-title {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

[data-theme="dark"] .code-title {
    color: var(--gray-400);
}

.code-content {
    padding: var(--spacing-lg);
}

.code-content pre {
    margin: 0;
    background: none;
    color: var(--gray-700);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
}

[data-theme="dark"] .code-content pre {
    color: var(--gray-300);
}

/* Sections */
.section-header {
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

[data-theme="dark"] .section-title {
    color: var(--gray-100);
}

.section-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

[data-theme="dark"] .section-description {
    color: var(--gray-400);
}

/* Features Section */
.features-section {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

[data-theme="dark"] .features-section {
    background: var(--dark-bg);
}

.feature-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    height: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .feature-card {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: white;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

[data-theme="dark"] .feature-card h3 {
    color: var(--gray-100);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

[data-theme="dark"] .feature-card p {
    color: var(--gray-400);
}

/* Providers Section */
.providers-section {
    padding: var(--spacing-2xl) 0;
    background: var(--gray-50);
}

[data-theme="dark"] .providers-section {
    background: var(--dark-surface);
}

.providers-grid {
    display: grid;
    gap: var(--spacing-2xl);
}

.provider-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
    text-align: center;
}

[data-theme="dark"] .provider-category h3 {
    color: var(--gray-100);
}

.provider-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.provider-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition);
}

[data-theme="dark"] .provider-card {
    background: var(--dark-bg);
    border-color: var(--dark-border);
}

.provider-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.provider-logo {
    width: 50px;
    height: 50px;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    color: var(--primary);
    font-size: 1.5rem;
}

[data-theme="dark"] .provider-logo {
    background: var(--dark-surface);
}

.provider-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--gray-900);
}

[data-theme="dark"] .provider-card h4 {
    color: var(--gray-100);
}

.provider-card p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

[data-theme="dark"] .provider-card p {
    color: var(--gray-400);
}

/* Quick Start Section */
.quick-start-section {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

[data-theme="dark"] .quick-start-section {
    background: var(--dark-bg);
}

.quick-start-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

[data-theme="dark"] .quick-start-content h2 {
    color: var(--gray-100);
}

.quick-start-content p {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

[data-theme="dark"] .quick-start-content p {
    color: var(--gray-400);
}

.steps {
    margin-bottom: var(--spacing-xl);
}

.step {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--gray-900);
}

[data-theme="dark"] .step-content h4 {
    color: var(--gray-100);
}

.step-content p {
    color: var(--gray-600);
    margin: 0;
}

[data-theme="dark"] .step-content p {
    color: var(--gray-400);
}

/* Code Example */
.code-example {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .code-example {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.code-tabs {
    display: flex;
    background: var(--gray-100);
    border-bottom: 1px solid var(--gray-200);
}

[data-theme="dark"] .code-tabs {
    background: var(--dark-bg);
    border-bottom-color: var(--dark-border);
}

.code-tab {
    background: none;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
}

[data-theme="dark"] .code-tab {
    color: var(--gray-400);
}

.code-tab.active {
    color: var(--primary);
    background: var(--white);
}

[data-theme="dark"] .code-tab.active {
    background: var(--dark-surface);
}

.code-panel {
    display: none;
    padding: var(--spacing-lg);
}

.code-panel.active {
    display: block;
}

.code-panel pre {
    margin: 0;
    background: none;
    color: var(--gray-700);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
}

[data-theme="dark"] .code-panel pre {
    color: var(--gray-300);
}

/* Documentation Section */
.documentation-section {
    padding: var(--spacing-2xl) 0;
    background: var(--gray-50);
}

[data-theme="dark"] .documentation-section {
    background: var(--dark-surface);
}

.doc-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-decoration: none;
    color: inherit;
    display: block;
    height: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .doc-card {
    background: var(--dark-bg);
    border-color: var(--dark-border);
}

.doc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: var(--transition);
}

.doc-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
    text-decoration: none;
    color: inherit;
}

.doc-card:hover::before {
    transform: scaleX(1);
}

.doc-icon {
    width: 60px;
    height: 60px;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: var(--primary);
    font-size: 1.5rem;
}

[data-theme="dark"] .doc-icon {
    background: var(--dark-surface);
}

.doc-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

[data-theme="dark"] .doc-card h3 {
    color: var(--gray-100);
}

.doc-card p {
    color: var(--gray-600);
    margin: 0;
}

[data-theme="dark"] .doc-card p {
    color: var(--gray-400);
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: white;
}

.cta-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-outline-light {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

[data-theme="dark"] .footer {
    background: var(--dark-bg);
}

.footer a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

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

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 991.98px) {
    .navbar-nav .nav-link {
        font-size: 0.85rem;
        padding: var(--spacing-xs) 0.5rem !important;
        margin: 0 0.25rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 767.98px) {
    .navbar-nav .nav-link {
        font-size: 0.8rem;
        padding: var(--spacing-xs) 0.25rem !important;
        margin: 0 0.1rem;
    }
    
    .navbar-nav .nav-link i {
        display: none;
    }
    
    .main-content {
        margin-top: 70px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
        align-items: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 575.98px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .feature-card,
    .doc-card {
        padding: var(--spacing-lg);
    }
    
    .provider-cards {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.feature-card,
.provider-card,
.doc-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--dark-surface);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}