* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #10b981;
    --dark: #111827;
    --gray: #6b7280;
    --light-gray: #f3f4f6;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    padding: 8rem 2rem 4rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero::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 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero .tagline {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary);
}

/* Section Styles */
.section {
    padding: 5rem 2rem;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--gray);
}

/* Features Section */
.features {
    padding: 5rem 2rem;
    background: var(--white);
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    background: var(--light-gray);
    border-radius: 1rem;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    background: var(--white);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    line-height: 1.8;
}

/* Architecture Section */
.architecture {
    padding: 5rem 2rem;
    background: var(--light-gray);
}

.architecture-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.architecture-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark);
}

.architecture-text p {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.code-block {
    background: #1e293b;
    color: #e2e8f0;
    padding: 2rem;
    border-radius: 1rem;
    font-family: 'Courier New', monospace;
    overflow-x: auto;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.code-block pre {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Benefits Section */
.benefits {
    padding: 5rem 2rem;
    background: var(--white);
}

.benefits-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.benefit-item {
    text-align: center;
    padding: 2rem;
}

.benefit-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.benefit-label {
    font-size: 1.2rem;
    color: var(--dark);
    font-weight: 600;
}

.benefit-description {
    color: var(--gray);
    margin-top: 0.5rem;
}

/* CTA Section */
.cta {
    padding: 5rem 2rem;
    background: var(--gradient);
    text-align: center;
    color: var(--white);
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* Footer */
footer {
    padding: 3rem 2rem;
    background: var(--dark);
    color: var(--white);
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
}

/* Page Layout */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 8rem 2rem 4rem;
}

.page-header {
    text-align: center;
    margin-bottom: 4rem;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.content-card {
    padding: 2rem;
    background: var(--light-gray);
    border-radius: 1rem;
}

.content-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

.content-card p {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.content-card ul {
    color: var(--gray);
    line-height: 1.8;
    margin-left: 1.5rem;
}

.content-card li {
    margin-bottom: 0.5rem;
}

/* Code Examples */
.example-block {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 1rem;
    margin-bottom: 2rem;
}

.example-block h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--white);
}

.tab {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    color: var(--gray);
    cursor: pointer;
    transition: all 0.3s;
}

.tab.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Article Header */
.article-header {
    background: var(--gradient);
    color: white;
    padding: 6rem 2rem 2rem;
    margin-top: 4rem;
}

.article-header .article-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.article-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: white;
}

.article-meta {
    margin-top: 1.5rem;
}

.article-meta p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0.5rem 0;
}

/* Article Content */
.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

article.article-content {
    padding: 2rem 2rem;
}

/* Article Lists */
article.article-content ul,
article.article-content ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

article.article-content ul li {
    list-style-type: disc;
    margin: 0.5rem 0;
    padding-left: 0.5rem;
}

article.article-content ol li {
    list-style-type: decimal;
    margin: 0.5rem 0;
    padding-left: 0.5rem;
}

article.article-content ul ul,
article.article-content ol ol,
article.article-content ul ol,
article.article-content ol ul {
    margin: 0.25rem 0;
    padding-left: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .tagline {
        font-size: 1.2rem;
    }
    
    .architecture-content {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .article-header {
        padding: 5rem 1rem 1.5rem;
    }
    
    .article-header h1 {
        font-size: 2rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Syntax Highlighting */
.hljs {
    background: #1e293b !important;
    color: #e2e8f0 !important;
}

.hljs-keyword {
    color: #fbbf24;
}

.hljs-string {
    color: #34d399;
}

.hljs-number {
    color: #f87171;
}

.hljs-comment {
    color: #9ca3af;
}


/* GitHub Link and Mobile Menu Styles */
.github-link {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--dark);
    color: var(--white) !important;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s;
}

.github-link:hover {
    background: var(--primary);
    transform: translateY(-1px);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    margin: 2px 0;
    transition: 0.3s;
}

.nav-links.open {
    display: flex !important;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 1rem 2rem;
    gap: 1rem;
    z-index: 1000;
}

/* Mobile Menu Toggle Display */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
}

/* Navigation Dropdown Styles */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    min-width: 180px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-radius: 0.5rem;
    padding: 0.5rem 0;
    z-index: 1000;
    margin-top: 0.5rem;
}

.dropdown-content a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s, color 0.3s;
}

.dropdown-content a:hover {
    background: var(--light-gray);
    color: var(--primary);
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown > a::after {
    content: ' ▼';
    font-size: 0.8rem;
    color: var(--gray);
    margin-left: 0.25rem;
}

/* Mobile Dropdown Styles */
@media (max-width: 768px) {
    .dropdown-content {
        position: static;
        display: block;
        box-shadow: none;
        background: transparent;
        margin-top: 0;
        padding-left: 1rem;
    }
    
    .dropdown > a::after {
        display: none;
    }
}