:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #06b6d4;
    --success-color: #059669;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    --info-color: #0ea5e9;
    
    --text-color: #1e293b;
    --text-muted: #64748b;
    --bg-color: #ffffff;
    --bg-secondary: #f8fafc;
    
    --card-bg: #ffffff;
    --card-border: #e2e8f0;
    --card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    
    --navbar-bg: #ffffff;
    --navbar-border: #e2e8f0;
    
    --code-bg: #f1f5f9;
    --code-border: #cbd5e1;
    --code-text: #be185d;
    
    --jumbotron-bg: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --jumbotron-text: #ffffff;
    
    --footer-bg: #1e293b;
    --footer-text: #f1f5f9;
    
    --breadcrumb-bg: #f8fafc;
    --breadcrumb-active: #64748b;
    
    --link-hover: #1d4ed8;
    --border-color: #e2e8f0;
    
    --btn-primary-bg: #2563eb;
    --btn-primary-border: #2563eb;
    --btn-primary-hover: #1d4ed8;
}

[data-theme="dark"] {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #94a3b8;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #0ea5e9;
    
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    
    --card-bg: #1e293b;
    --card-border: #475569;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
    
    --navbar-bg: #1e293b;
    --navbar-border: #334155;
    
    --code-bg: #334155;
    --code-border: #64748b;
    --code-text: #fbbf24;
    
    --jumbotron-bg: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --jumbotron-text: #ffffff;
    
    --footer-bg: #020617;
    --footer-text: #f1f5f9;
    
    --breadcrumb-bg: #1e293b;
    --breadcrumb-active: #94a3b8;
    
    --link-hover: #60a5fa;
    --border-color: #334155;
    
    --btn-primary-bg: #3b82f6;
    --btn-primary-border: #3b82f6;
    --btn-primary-hover: #2563eb;
}

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: all 0.3s ease;
    line-height: 1.7;
    font-size: 16px;
}

/* Navbar Styling */
.navbar {
    background-color: var(--navbar-bg) !important;
    border-bottom: 1px solid var(--navbar-border);
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 700;
    color: var(--text-color) !important;
    display: flex;
    align-items: center;
}

.navbar-nav .nav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    padding: 0.75rem 1rem !important;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    margin: 0 0.25rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
    background-color: rgba(var(--primary-color), 0.1);
}

.navbar-toggler {
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(var(--primary-color), 0.25);
}

/* Enhanced Navigation Pills/Tabs */
.nav-pills .nav-link {
    color: var(--text-color);
    background: transparent;
    border: 2px solid transparent;
    padding: 0.75rem 1.25rem;
    font-weight: 500;
    border-radius: 0.75rem;
    transition: all 0.3s ease;
    margin-right: 0.5rem;
}

.nav-pills .nav-link:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
    border-color: var(--primary-color);
}

.nav-pills .nav-link.active {
    color: #ffffff;
    background: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 2rem;
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
    position: relative;
    padding-bottom: 0.5rem;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 1.5px;
}

h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

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

.lead {
    font-size: 1.125rem;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1rem;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #ffffff;
    border-bottom: none;
    font-weight: 600;
    padding: 1rem 1.5rem;
}

.card-header h3, .card-header h5 {
    color: #ffffff !important;
    margin-bottom: 0;
}

.card-body {
    padding: 1.5rem;
    color: var(--text-color);
}

.card-feature {
    transition: transform 0.3s ease;
    height: 100%;
}

.card-feature:hover {
    transform: translateY(-5px);
}

.feature-icon {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Code Blocks - Enhanced for better readability */
pre {
    background-color: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    overflow-x: auto;
    font-size: 0.875rem;
    line-height: 1.6;
    box-shadow: var(--card-shadow);
    position: relative;
}

code {
    font-family: 'JetBrains Mono', 'Roboto Mono', 'Consolas', 'Monaco', monospace;
    color: var(--code-text);
    background-color: var(--code-bg);
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    border: 1px solid var(--code-border);
    font-weight: 500;
}

pre code {
    padding: 0;
    background-color: transparent;
    border: none;
    color: var(--text-color);
    font-size: inherit;
    font-weight: 400;
}

/* Enhanced code styling for better readability */
pre code .hljs-comment {
    color: var(--text-muted);
    font-style: italic;
}

pre code .hljs-string {
    color: var(--success-color);
}

pre code .hljs-keyword {
    color: var(--primary-color);
    font-weight: 600;
}

pre code .hljs-variable {
    color: var(--accent-color);
}

.code-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)) !important;
    color: #ffffff !important;
    padding: 0.875rem 1.25rem !important;
    border-top-left-radius: 0.75rem !important;
    border-top-right-radius: 0.75rem !important;
    font-family: 'JetBrains Mono', 'Roboto Mono', monospace !important;
    font-size: 0.875rem !important;
    font-weight: 600 !important;
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    margin-bottom: 0 !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
    border: 1px solid var(--primary-color) !important;
}

.code-header span {
    color: #ffffff !important;
    font-weight: 600 !important;
}

.code-header button.copy-code {
    background: rgba(255, 255, 255, 0.15) !important;
    border: 1px solid rgba(255, 255, 255, 0.25) !important;
    color: #ffffff !important;
    cursor: pointer !important;
    font-size: 0.75rem !important;
    padding: 0.375rem 0.875rem !important;
    border-radius: 0.375rem !important;
    transition: all 0.2s ease !important;
    font-weight: 500 !important;
    margin-left: 0.5rem !important;
}

.code-header button.copy-code:hover {
    background: rgba(255, 255, 255, 0.25) !important;
    border-color: rgba(255, 255, 255, 0.4) !important;
    transform: translateY(-1px) !important;
}

/* Override any conflicting styles */
.code-window .code-header {
    /* Homepage code window - different styling */
    background: var(--bg-secondary) !important;
    color: var(--text-color) !important;
    border: 1px solid var(--border-color) !important;
}

.mb-4 .code-header + pre {
    margin-top: 0;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
    border-top: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Jumbotron */
.jumbotron {
    background: var(--jumbotron-bg) !important;
    color: var(--jumbotron-text) !important;
    border-radius: 1rem;
    padding: 3rem 2rem;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.jumbotron::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.jumbotron > * {
    position: relative;
    z-index: 2;
}

/* Breadcrumb */
.breadcrumb {
    background-color: var(--breadcrumb-bg);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    margin-bottom: 0;
}

.breadcrumb-item {
    font-size: 0.875rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-muted);
}

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

.breadcrumb-item a {
    color: var(--text-color);
    text-decoration: none;
}

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

/* Footer */
footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 2rem 0;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
}

footer a {
    color: var(--footer-text);
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

footer a:hover {
    opacity: 1;
    color: var(--primary-color);
}

/* Buttons */
.btn {
    font-weight: 600;
    border-radius: 0.75rem;
    padding: 0.875rem 1.75rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    font-size: 0.925rem;
    letter-spacing: 0.025em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
}

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

.btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

/* Form Controls */
.form-control {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
}

.form-control:focus {
    background-color: var(--card-bg);
    border-color: var(--primary-color);
    color: var(--text-color);
    box-shadow: 0 0 0 0.2rem rgba(var(--primary-color), 0.25);
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* Dropdown */
.dropdown-menu {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.5rem;
    box-shadow: var(--card-shadow);
    padding: 0.5rem;
}

.dropdown-item {
    color: var(--text-color);
    border-radius: 0.375rem;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background-color: var(--bg-secondary);
    color: var(--text-color);
}

.dropdown-divider {
    border-color: var(--border-color);
    margin: 0.5rem 0;
}

/* Theme switcher */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    background-color: transparent;
    border-radius: 1.5rem;
    transition: all 0.3s ease;
}

.theme-switch-wrapper:hover {
    background-color: var(--bg-secondary);
}

.theme-switch-wrapper em {
    margin-left: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-color);
    font-weight: 500;
    font-style: normal;
    white-space: nowrap;
}

.theme-switch {
    display: inline-block;
    height: 24px;
    position: relative;
    width: 44px;
}

.theme-switch input {
    display: none;
}

.slider {
    background-color: var(--border-color);
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: 0.4s;
    border-radius: 24px;
}

.slider:before {
    background-color: #ffffff;
    bottom: 2px;
    content: "";
    height: 20px;
    left: 2px;
    position: absolute;
    transition: 0.4s;
    width: 20px;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

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

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

/* Responsive theme switcher */
@media (max-width: 991px) {
    .theme-switch-wrapper {
        margin-top: 1rem;
        padding: 0.75rem 0;
        justify-content: center;
        border-top: 1px solid var(--border-color);
    }
}

/* Navigation Tabs */
.nav-tabs {
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.nav-tabs .nav-link {
    color: var(--text-color);
    border: none;
    border-bottom: 3px solid transparent;
    padding: 1rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
    background: none;
}

.nav-tabs .nav-link:hover {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: var(--bg-secondary);
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background-color: transparent;
    font-weight: 600;
}

/* Tutorial Sidebar Enhancements */
#tutorial-toc {
    max-height: 400px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--bg-secondary);
}

#tutorial-toc::-webkit-scrollbar {
    width: 6px;
}

#tutorial-toc::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 3px;
}

#tutorial-toc::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

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

#tutorial-toc .nav-link {
    border-radius: 0.375rem;
    margin-bottom: 0.25rem;
    transition: all 0.2s ease;
    position: relative;
}

#tutorial-toc .nav-link:hover {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
    text-decoration: none;
    transform: translateX(3px);
}

#tutorial-toc .nav-link.active {
    background-color: var(--primary-color);
    color: white !important;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

#tutorial-toc .nav-link.active::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 2px;
}

/* Tab content improvements */
.tab-content {
    min-height: 400px;
}

.tab-pane {
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.tab-pane.active {
    opacity: 1;
    transform: translateY(0);
}

/* Loading state for tabs */
.tab-pane.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    border: 2px solid var(--bg-secondary);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Enhanced tab navigation */
.nav-tabs .nav-link {
    border-radius: 0.5rem 0.5rem 0 0;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.nav-tabs .nav-link:hover {
    border-color: var(--border-color);
    background-color: var(--bg-secondary);
    transform: translateY(-2px);
}

.nav-tabs .nav-link.active {
    background-color: var(--card-bg);
    border-color: var(--border-color) var(--border-color) var(--card-bg);
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
}

/* Dark theme adjustments */
[data-theme="dark"] #tutorial-toc .nav-link:hover {
    background-color: var(--bg-secondary);
    color: var(--accent-color);
}

[data-theme="dark"] #tutorial-toc .nav-link.active {
    background-color: var(--primary-color);
    color: white !important;
}

[data-theme="dark"] .nav-tabs .nav-link:hover {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
}

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

/* Responsive improvements */
@media (max-width: 768px) {
    #tutorial-toc {
        max-height: 300px;
    }
    
    .tab-content {
        min-height: 300px;
    }
    
    .nav-tabs {
        flex-wrap: wrap;
    }
    
    .nav-tabs .nav-link {
        font-size: 0.9rem;
        padding: 0.5rem 0.75rem;
    }
}

/* Final Theme Consistency Fixes */

/* Ensure consistent backgrounds */
.jumbotron {
    background: var(--jumbotron-bg) !important;
    color: var(--jumbotron-text) !important;
}

/* Override Bootstrap defaults with theme variables */
.bg-light {
    background-color: var(--bg-secondary) !important;
}

.bg-dark {
    background-color: var(--footer-bg) !important;
}

.text-light {
    color: var(--footer-text) !important;
}

.text-dark {
    color: var(--text-color) !important;
}

/* Navbar specific fixes */
.navbar-light {
    background-color: var(--navbar-bg) !important;
}

.navbar-light .navbar-brand,
.navbar-light .navbar-nav .nav-link {
    color: var(--text-color) !important;
}

.navbar-light .navbar-toggler {
    border-color: var(--border-color) !important;
}

.navbar-light .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%2833, 37, 41, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-theme="dark"] .navbar-light .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%28233, 236, 239, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Enhanced hover effects for better UX */
.card-feature:hover {
    transform: translateY(-8px);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .card-feature:hover {
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.3);
}

/* SVG icons should inherit text color */
svg {
    color: inherit;
}

/* Enhanced focus states for better accessibility */
.btn:focus-visible,
.form-control:focus-visible,
.nav-link:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 0.2rem rgba(var(--primary-color), 0.25);
}

/* Smooth transitions for theme switching */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Enhanced code blocks with better syntax highlighting compatibility */
pre, code {
    font-family: 'Roboto Mono', 'Consolas', 'Monaco', 'Courier New', monospace !important;
}

/* Ensure proper contrast for all text elements */
.text-muted {
    color: var(--text-muted) !important;
}

/* Dark mode specific overrides */
[data-theme="dark"] .bg-light {
    background-color: var(--bg-secondary) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .text-dark {
    color: var(--text-color) !important;
}

[data-theme="dark"] .border {
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.3) !important;
}

/* Ensure proper icon colors */
.feature-icon {
    color: var(--primary-color) !important;
}

/* Enhanced responsive behavior */
@media (max-width: 768px) {
    .jumbotron {
        padding: 2rem 1rem !important;
    }
    
    .display-4 {
        font-size: 2rem !important;
    }
    
    .fs-4 {
        font-size: 1.1rem !important;
    }
}

/* Print styles */
@media print {
    * {
        background: white !important;
        color: black !important;
    }
    
    .jumbotron {
        background: white !important;
        color: black !important;
        border: 1px solid #ddd !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --text-color: #000000;
        --bg-color: #ffffff;
        --card-border: #000000;
    }
    
    [data-theme="dark"] {
        --primary-color: #00ffff;
        --text-color: #ffffff;
        --bg-color: #000000;
        --card-border: #ffffff;
    }
}

/* Additional CSS for better theme consistency and readability */

/* Improved contrast and readability for dark theme */
[data-theme="dark"] {
    /* Better contrast for text */
    --text-color: #f8fafc;
    --text-muted: #cbd5e1;
    
    /* Improved card styling */
    --card-bg: #1e293b;
    --card-border: #475569;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
    
    /* Better code block contrast */
    --code-bg: #334155;
    --code-border: #64748b;
    --code-text: #fbbf24;
}

/* Ensure proper text color inheritance in dark mode */
[data-theme="dark"] p,
[data-theme="dark"] li,
[data-theme="dark"] span,
[data-theme="dark"] div {
    color: var(--text-color);
}

[data-theme="dark"] .text-dark {
    color: var(--text-color) !important;
}

/* Enhanced readability for code blocks */
[data-theme="dark"] pre code {
    color: #e2e8f0 !important;
}

[data-theme="dark"] code {
    background-color: rgba(51, 65, 85, 0.8) !important;
    color: var(--code-text) !important;
    border-color: var(--code-border) !important;
}

/* Better contrast for alerts in dark mode */
[data-theme="dark"] .alert-info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(59, 130, 246, 0.08));
    color: #93c5fd;
    border-left-color: #3b82f6;
}

[data-theme="dark"] .alert-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.08));
    color: #fcd34d;
    border-left-color: #f59e0b;
}

[data-theme="dark"] .alert-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.08));
    color: #6ee7b7;
    border-left-color: #10b981;
}

[data-theme="dark"] .alert-primary {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(59, 130, 246, 0.08));
    color: #93c5fd;
    border-left-color: #3b82f6;
}

/* Better visibility for small text in dark mode */
[data-theme="dark"] .small,
[data-theme="dark"] small {
    color: var(--text-muted) !important;
}

/* Enhanced button hover states for dark mode */
[data-theme="dark"] .btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

[data-theme="dark"] .btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Better navigation pills in dark mode */
[data-theme="dark"] .nav-pills .nav-link {
    color: var(--text-color);
}

[data-theme="dark"] .nav-pills .nav-link:hover {
    background: rgba(59, 130, 246, 0.1);
    color: #93c5fd;
    border-color: #3b82f6;
}

[data-theme="dark"] .nav-pills .nav-link.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Better contrast for output boxes */
.bg-success.bg-opacity-10 {
    background-color: rgba(16, 185, 129, 0.1) !important;
}

[data-theme="dark"] .bg-success.bg-opacity-10 {
    background-color: rgba(16, 185, 129, 0.15) !important;
    border-color: #10b981 !important;
}

/* Improved list styling */
.list-unstyled li {
    margin-bottom: 0.5rem;
    padding-left: 0.5rem;
}

/* Better spacing for code examples */
.code-example .card-body {
    padding: 1.5rem;
}

.code-example .code-header + pre {
    margin-bottom: 1.5rem;
}

/* Enhanced emoji visibility */
h3 .mb-0 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Better mobile responsiveness for theme */
@media (max-width: 768px) {
    [data-theme="dark"] .card-body {
        padding: 1rem;
    }
    
    [data-theme="dark"] .alert {
        padding: 0.875rem 1rem;
        font-size: 0.925rem;
    }
    
    h1 {
        font-size: 2rem !important;
    }
    
    h2 {
        font-size: 1.75rem !important;
    }
}

/* Ensure proper contrast for all interactive elements */
[data-theme="dark"] .form-control {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .form-control:focus {
    background-color: var(--bg-secondary);
    border-color: var(--primary-color);
    color: var(--text-color);
    box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.25);
}

[data-theme="dark"] .dropdown-menu {
    background-color: var(--card-bg);
    border-color: var(--card-border);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .dropdown-item {
    color: var(--text-color);
}

[data-theme="dark"] .dropdown-item:hover {
    background-color: var(--bg-secondary);
    color: var(--text-color);
}

/* Better breadcrumb styling */
[data-theme="dark"] .breadcrumb {
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .breadcrumb-item a {
    color: var(--text-color);
}

[data-theme="dark"] .breadcrumb-item a:hover {
    color: var(--primary-color);
}

/* Enhanced jumbotron for both themes */
.jumbotron {
    position: relative;
    overflow: hidden;
    border-radius: 1rem !important;
}

.jumbotron::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.jumbotron > * {
    position: relative;
    z-index: 2;
}

/* Better table styling for both themes */
[data-theme="dark"] .table {
    color: var(--text-color);
}

[data-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > td,
[data-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > th {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Improved accessibility focus indicators */
[data-theme="dark"] *:focus-visible {
    outline: 2px solid #60a5fa;
    outline-offset: 2px;
}

/* Better loading states */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Ensure proper theme consistency across all components */
[data-theme="dark"] .bg-light {
    background-color: var(--bg-secondary) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .border {
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .border-success {
    border-color: var(--success-color) !important;
}

[data-theme="dark"] .border-primary {
    border-color: var(--primary-color) !important;
}

/* Enhanced navbar with theme switcher integration */
.navbar .d-flex.align-items-center.gap-3 {
    flex-wrap: nowrap;
}

.navbar .theme-switch-wrapper {
    flex-shrink: 0;
    margin-left: 1rem;
}

/* Better alignment for search and theme switcher */
@media (min-width: 992px) {
    .navbar .d-flex.align-items-center.gap-3 {
        gap: 1rem !important;
    }
    
    .navbar .theme-switch-wrapper em {
        font-size: 0.8rem;
    }
}

/* Mobile responsive improvements for navbar */
@media (max-width: 991px) {
    .navbar .d-flex.align-items-center.gap-3 {
        flex-direction: column;
        align-items: stretch !important;
        width: 100%;
        gap: 1rem !important;
    }
    
    .navbar form.d-flex {
        width: 100%;
    }
    
    .navbar .theme-switch-wrapper {
        margin-left: 0;
        margin-top: 0.5rem;
        justify-content: center;
        border-top: 1px solid var(--border-color);
        padding-top: 1rem;
    }
}

/* Ensure proper spacing in navbar */
.navbar-nav {
    align-items: center;
}

.navbar-nav .nav-item {
    margin: 0 0.25rem;
}

.navbar-collapse {
    justify-content: space-between;
}

/* Modern Homepage Styles */

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .hero-section {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

.hero-section::before {
    content: '';
    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="%23e2e8f0" stroke-width="0.5" opacity="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    z-index: 0;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.min-vh-75 {
    min-height: 75vh;
}

.hero-content {
    animation: slideInLeft 0.8s ease-out;
}

.hero-image {
    animation: slideInRight 0.8s ease-out;
}

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

.hero-title {
    line-height: 1.2;
}

.hero-buttons .btn {
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.hero-buttons .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

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

/* Code Window */
.code-window {
    background: var(--card-bg);
    border-radius: 1rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 1px solid var(--card-border);
    max-width: 500px;
    margin: 0 auto;
}

.code-window .code-header {
    background: var(--bg-secondary);
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.code-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28ca42; }

.code-title {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.code-content {
    padding: 1.5rem;
    background: var(--code-bg);
}

.code-content pre {
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.6;
}

.code-content code {
    background: transparent;
    color: var(--text-color);
    font-family: 'JetBrains Mono', 'Courier New', monospace;
}

/* Feature Cards */
.feature-card {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--card-border);
    transition: all 0.3s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
    position: relative;
}

.feature-icon i {
    font-size: 2rem;
    color: white;
    z-index: 2;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    fill: white;
    z-index: 1;
}

/* Ensure proper icon display */
.feature-icon > * {
    flex-shrink: 0;
}

/* Icon color variations */
.feature-icon.bg-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.feature-icon.bg-success {
    background: linear-gradient(135deg, var(--success-color), #047857);
}

.feature-icon.bg-info {
    background: linear-gradient(135deg, var(--info-color), #0284c7);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.feature-description {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-stats {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

/* Tutorial Groups */
.tutorial-group {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid var(--card-border);
    height: 100%;
}

.tutorial-group-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.tutorial-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tutorial-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 0.75rem;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.tutorial-item:hover {
    background: var(--card-bg);
    border-color: var(--primary-color);
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.1);
    color: var(--text-color);
    text-decoration: none;
}

.tutorial-content {
    flex: 1;
}

.tutorial-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.tutorial-desc {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.tutorial-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.tutorial-meta .fas {
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.tutorial-item:hover .tutorial-meta .fas {
    transform: translateX(3px);
}

/* Knowledge Hub Section - Updated */
.feature-bullet {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.knowledge-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 200px;
    margin: 0 auto;
}

.stat-box {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem 1.5rem;
    text-align: center;
    border: 1px solid var(--card-border);
    transition: all 0.3s ease;
    box-shadow: var(--card-shadow);
}

.stat-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.stat-content i {
    font-size: 2rem;
    display: block;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    margin: 0.5rem 0 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    margin: 0;
}

/* Old styles to remove */
.info-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    min-width: 200px;
}

.info-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    flex-shrink: 0;
}

.info-text {
    text-align: left;
}

.info-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    line-height: 1;
}

.info-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 0.25rem;
}

/* Responsive Design - Knowledge Hub */
@media (max-width: 768px) {
    .knowledge-stats {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 1rem;
        max-width: 100%;
        margin-top: 2rem;
    }
    
    .stat-box {
        padding: 1.5rem 1rem;
    }
    
    .stat-content i {
        font-size: 1.5rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .feature-bullet {
        width: 20px;
        height: 20px;
        font-size: 0.7rem;
    }
}

@media (max-width: 576px) {
    .knowledge-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-box {
        padding: 1rem;
    }
}

/* Scroll to Top Button (FAB - Floating Action Button) */
.fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 55px;
    height: 55px;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 123, 255, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    opacity: 0;
    transform: translateY(100px) scale(0.8);
    visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    outline: none;
    text-decoration: none;
}

.fab.show {
    opacity: 1;
    transform: translateY(0) scale(1);
    visibility: visible;
}

.fab:hover {
    background: linear-gradient(135deg, #0056b3, var(--primary-color));
    box-shadow: 0 6px 25px rgba(0, 123, 255, 0.4);
    transform: translateY(-3px) scale(1.05);
}

.fab:active {
    transform: translateY(0) scale(0.95);
    box-shadow: 0 2px 15px rgba(0, 123, 255, 0.3);
}

.fab:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Pulse animation for better visibility */
.fab::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 50%;
    background: inherit;
    animation: pulse 2s infinite;
    z-index: -1;
    opacity: 0.7;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.7;
    }
    70% {
        transform: scale(1.1);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 0;
    }
}

/* Dark theme support for FAB */
[data-theme="dark"] .fab {
    background: linear-gradient(135deg, #4f46e5, #6366f1);
    box-shadow: 0 4px 20px rgba(79, 70, 229, 0.3);
}

[data-theme="dark"] .fab:hover {
    background: linear-gradient(135deg, #6366f1, #4f46e5);
    box-shadow: 0 6px 25px rgba(79, 70, 229, 0.4);
}

[data-theme="dark"] .fab:focus-visible {
    outline-color: #6366f1;
}

/* Responsive design for mobile */
@media (max-width: 768px) {
    .fab {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .fab {
        bottom: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 16px;
    }
}

/* Hide FAB when printing */
@media print {
    .fab {
        display: none !important;
    }
}

/* Accessibility improvements */
.fab[aria-hidden="true"] {
    display: none;
}

/* Alternative icon styles if needed */
.fab .fa,
.fab .fas,
.fab .fab {
    font-size: inherit;
    line-height: 1;
}

/* Smooth entrance animation */
.fab.fab-enter {
    animation: fabEnter 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fabEnter {
    0% {
        opacity: 0;
        transform: translateY(100px) scale(0.3) rotate(180deg);
    }
    50% {
        opacity: 0.8;
        transform: translateY(-10px) scale(1.1) rotate(90deg);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1) rotate(0deg);
    }
}

/* Exit animation */
.fab.fab-exit {
    animation: fabExit 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fabExit {
    0% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(100px) scale(0.3);
    }
}

/* Enhanced focus state for better accessibility */
.fab:focus {
    outline: none;
    box-shadow: 
        0 4px 20px rgba(0, 123, 255, 0.3),
        0 0 0 3px rgba(0, 123, 255, 0.2);
}

[data-theme="dark"] .fab:focus {
    box-shadow: 
        0 4px 20px rgba(79, 70, 229, 0.3),
        0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* Tooltip support for FAB */
.fab[data-bs-toggle="tooltip"] {
    cursor: pointer;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .fab {
        background: #000;
        color: #fff;
        border: 2px solid #fff;
    }
    
    .fab:hover {
        background: #333;
    }
    
    [data-theme="dark"] .fab {
        background: #fff;
        color: #000;
        border: 2px solid #000;
    }
    
    [data-theme="dark"] .fab:hover {
        background: #ddd;
    }
}

/* Motion reduced accessibility */
@media (prefers-reduced-motion: reduce) {
    .fab {
        transition: opacity 0.2s ease;
    }
    
    .fab::before {
        animation: none;
    }
    
    .fab.fab-enter,
    .fab.fab-exit {
        animation: none;
    }
    
    .fab:hover {
        transform: none;
    }
}