:root {
    --primary-color: #00f3ff;
    --secondary-color: #bc13fe;
    --accent-color: #00ff9d;
    --warning-color: #ff6b35;
    --bg-dark: #0a0a0a;
    --bg-card: #161616;
    --bg-sidebar: #0d0d0d;
    --text-main: #ffffff;
    --text-muted: #b0b0b0;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --sidebar-width: 280px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow-x: hidden;
    line-height: 1.7;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
}

/* Sidebar TOC */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--glass-border);
    z-index: 1001;
    overflow-y: auto;
    padding: 80px 0 30px 0;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 0 20px 20px 20px;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 15px;
}

.sidebar-header h3 {
    color: var(--primary-color);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-header h3::before {
    content: '';
    width: 4px;
    height: 16px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.toc-list {
    list-style: none;
    padding: 0 15px;
}

.toc-list li {
    margin-bottom: 2px;
}

.toc-list a {
    display: block;
    padding: 8px 12px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    border-left: 2px solid transparent;
}

.toc-list a:hover {
    background: var(--glass-bg);
    color: var(--text-main);
    border-left-color: var(--primary-color);
}

.toc-list a.active {
    background: rgba(0, 243, 255, 0.1);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.toc-list .toc-sub {
    padding-left: 15px;
    margin-top: 2px;
    max-height: 500px;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    opacity: 1;
}

.toc-list .toc-sub.collapsed {
    max-height: 0;
    opacity: 0;
}

.toc-list .toc-sub a {
    font-size: 0.8rem;
    padding: 6px 12px;
    color: var(--text-muted);
    opacity: 0.8;
}

.toc-list .toc-sub a:hover {
    opacity: 1;
}

/* TOC Parent with children */
.toc-list > li.has-children > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-right: 8px;
}

.toc-list > li.has-children > a .toc-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    font-size: 0.65rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    transition: all 0.3s ease;
    margin-left: 8px;
    flex-shrink: 0;
    cursor: pointer;
}

.toc-list > li.has-children > a .toc-arrow:hover {
    background: rgba(0, 243, 255, 0.15);
    color: var(--primary-color);
}

.toc-list > li.has-children.collapsed > a .toc-arrow {
    transform: rotate(-90deg);
}

.toc-list > li.has-children > a:hover .toc-arrow {
    color: var(--primary-color);
}

/* Sidebar Toggle */
.sidebar-toggle {
    position: fixed;
    left: var(--sidebar-width);
    top: 50%;
    transform: translateY(-50%);
    z-index: 1002;
    width: 24px;
    height: 60px;
    background: var(--bg-sidebar);
    border: 1px solid var(--glass-border);
    border-left: none;
    border-radius: 0 8px 8px 0;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.sidebar-toggle:hover {
    color: var(--primary-color);
    background: var(--bg-card);
}

.sidebar-toggle .toggle-icon {
    transition: transform 0.3s ease;
}

/* Sidebar Collapsed State */
.sidebar.collapsed {
    transform: translateX(-100%);
}

.sidebar.collapsed + .sidebar-toggle {
    left: 0;
    border-left: 1px solid var(--glass-border);
}

.sidebar.collapsed + .sidebar-toggle .toggle-icon {
    transform: rotate(180deg);
}

body.sidebar-collapsed .main-content {
    margin-left: 0;
}

body.sidebar-collapsed nav {
    left: 0;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    transition: margin-left 0.3s ease;
    background: #000;
}

/* Navbar */
nav {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    padding: 1rem 3%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(15px);
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 3px;
    text-shadow: 0 0 20px rgba(0, 243, 255, 0.5);
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
    padding: 5px 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding: 0 5%;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(ellipse at center, #1a1a2e 0%, #0a0a0a 70%);
}

.hero-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(188, 19, 254, 0.15) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards 0.5s, gradientMove 3s ease infinite;
    letter-spacing: 5px;
}

@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-muted);
    max-width: 700px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards 0.8s;
    margin-bottom: 2rem;
}

.hero-tags {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    opacity: 0;
    animation: fadeInUp 1s forwards 1.1s;
}

.hero-tag {
    padding: 8px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    animation: bounce 2s infinite;
    cursor: pointer;
    font-size: 0.9rem;
}

/* Sections */
section {
    padding: 5rem 5%;
    position: relative;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 2.5rem;
    position: relative;
    display: inline-block;
}

.section-title::before {
    content: '';
    position: absolute;
    left: -15px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 35px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-intro {
    max-width: 900px;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
}

/* Subsection */
.subsection {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

.subsection-title {
    font-size: 1.5rem;
    color: var(--text-main);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.subsection-title::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--secondary-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--secondary-color);
}

/* Cards & Content */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.content-grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--bg-card);
    padding: 1.8rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(0, 243, 255, 0.3);
}

.card:hover::before {
    opacity: 1;
}

.card-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, rgba(0, 243, 255, 0.2), rgba(188, 19, 254, 0.2));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.card h3 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    font-size: 1.25rem;
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.card ul {
    list-style: none;
    margin-top: 1rem;
}

.card ul li {
    color: var(--text-muted);
    padding: 0.4rem 0;
    padding-left: 1.2rem;
    position: relative;
    font-size: 0.9rem;
}

.card ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Feature Card */
.feature-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, rgba(0, 243, 255, 0.15), rgba(188, 19, 254, 0.15));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.feature-card h4 {
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Code Blocks */
.code-block {
    background: #1a1a1a;
    padding: 1.2rem 1.5rem;
    border-radius: 8px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    color: #d4d4d4;
    overflow-x: auto;
    border-left: 3px solid var(--secondary-color);
    margin: 1rem 0;
    line-height: 1.6;
    white-space: pre;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    background: #252525;
    border-radius: 8px 8px 0 0;
    margin-bottom: -1rem;
}

.code-lang {
    color: var(--primary-color);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.keyword { color: #569cd6; }
.string { color: #ce9178; }
.comment { color: #6a9955; }
.function { color: #dcdcaa; }
.number { color: #b5cea8; }
.operator { color: #d4d4d4; }
.type { color: #4ec9b0; }

/* SVG Containers */
.svg-container {
    width: 100%;
    max-width: 900px;
    margin: 2rem auto;
    background: var(--glass-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--glass-border);
    text-align: center;
}

.svg-container h3 {
    color: var(--text-main);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

svg {
    width: 100%;
    height: auto;
    max-height: 350px;
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin: 1.5rem 0;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.comparison-table th,
.comparison-table td {
    padding: 1rem 1.2rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.comparison-table th {
    background: rgba(0, 243, 255, 0.1);
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.comparison-table td {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.comparison-table tr:hover td {
    background: var(--glass-bg);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

/* Info Box */
.info-box {
    background: rgba(0, 243, 255, 0.05);
    border: 1px solid rgba(0, 243, 255, 0.2);
    border-radius: 10px;
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.info-box.warning {
    background: rgba(255, 107, 53, 0.05);
    border-color: rgba(255, 107, 53, 0.2);
}

.info-box-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-box.warning .info-box-title {
    color: var(--warning-color);
}

.info-box p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

.timeline-item {
    position: relative;
    padding-bottom: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 5px;
    width: 12px;
    height: 12px;
    background: var(--bg-dark);
    border: 2px solid var(--primary-color);
    border-radius: 50%;
}

.timeline-date {
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.timeline-content h4 {
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid var(--glass-border);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.3rem;
}

/* Pros/Cons Lists */
.pros-cons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.pros-card, .cons-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

.pros-card {
    border-top: 3px solid var(--accent-color);
}

.cons-card {
    border-top: 3px solid #ff4757;
}

.pros-card h3, .cons-card h3 {
    margin-bottom: 1.2rem;
    font-size: 1.2rem;
}

.pros-card h3 { color: var(--accent-color); }
.cons-card h3 { color: #ff4757; }

.pros-card ul, .cons-card ul {
    list-style: none;
}

.pros-card ul li, .cons-card ul li {
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.pros-card ul li:last-child, .cons-card ul li:last-child {
    border-bottom: none;
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Footer */
footer {
    padding: 2.5rem;
    text-align: center;
    background: #050505;
    color: var(--text-muted);
    border-top: 1px solid var(--glass-border);
    font-size: 0.9rem;
}

/* Page Loader */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.loader-text {
    color: var(--primary-color);
    font-size: 0.9rem;
    letter-spacing: 2px;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(0, 243, 255, 0.3);
}

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

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 243, 255, 0.5);
}

/* Reading Progress Bar */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    z-index: 1100;
    transition: width 0.1s;
}

/* Highlight Effect */
.highlight-box {
    background: linear-gradient(135deg, rgba(0, 243, 255, 0.08), rgba(188, 19, 254, 0.08));
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-left: 4px solid var(--primary-color);
}

.highlight-box h4 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.highlight-box p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Tag Pills */
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 1rem;
}

.tag {
    padding: 4px 12px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

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

/* Metric Cards */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.metric-card {
    background: var(--bg-card);
    padding: 1.2rem;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    text-align: center;
}

.metric-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

/* Code Compare */
.code-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 1rem 0;
}

@media (max-width: 768px) {
    .code-compare {
        grid-template-columns: 1fr;
    }
}

.code-compare .code-panel h5 {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    padding-left: 0.5rem;
}

/* Glow Text */
.glow-text {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 243, 255, 0.5);
}

/* Badge */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-new {
    background: rgba(0, 255, 157, 0.15);
    color: var(--accent-color);
}

.badge-deprecated {
    background: rgba(255, 107, 53, 0.15);
    color: var(--warning-color);
}

.badge-stable {
    background: rgba(0, 243, 255, 0.15);
    color: var(--primary-color);
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar:not(.collapsed) {
        transform: translateX(0);
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar-toggle {
        left: 0;
        border-left: 1px solid var(--glass-border);
    }

    .sidebar-toggle .toggle-icon {
        transform: rotate(180deg);
    }

    .sidebar:not(.collapsed) + .sidebar-toggle {
        left: var(--sidebar-width);
        border-left: none;
    }

    .sidebar:not(.collapsed) + .sidebar-toggle .toggle-icon {
        transform: rotate(0deg);
    }

    .main-content {
        margin-left: 0;
    }

    nav {
        left: 0;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    section {
        padding: 4rem 4%;
    }

    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .content-grid, .content-grid-3, .pros-cons-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}