:root {
    --primary-color: #4A90E2;
    --secondary-color: #5C6AC4;
    --dark-bg: #1a1a1a;
    --light-bg: #f8f9fa;
    --text-primary: #333;
    --text-secondary: #666;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --max-width: 1200px;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: #fff;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero {
    background: var(--gradient);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

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

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

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero .tagline {
    font-size: 1.5rem;
    margin-bottom: 20px;
    opacity: 0.95;
}

.hero .description {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 40px;
    opacity: 0.9;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

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

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

.icon {
    width: 20px;
    height: 20px;
}

/* Problem Solution Section */
.problem-solution {
    padding: 80px 0;
    background: white;
}

.problem-solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    max-width: 1000px;
    margin: 0 auto;
}

.problem h2, .solution h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    text-align: center;
}

.problem h2 {
    color: #e74c3c;
}

.solution h2 {
    color: var(--primary-color);
}

.pain-points, .solution-points {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.pain-point, .solution-point {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--light-bg);
    border-radius: 8px;
    transition: transform 0.2s ease;
}

.pain-point:hover, .solution-point:hover {
    transform: translateX(10px);
}

.pain-icon, .solution-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.pain-point p, .solution-point p {
    margin: 0;
    font-size: 1.1rem;
}

.solution-point code {
    background: var(--dark-bg);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--light-bg);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

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

.feature-card code {
    background: #f4f4f4;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.9em;
}

/* Quick Start Section */
.quick-start {
    padding: 80px 0;
    background: white;
}

.quick-start h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.steps {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    margin-bottom: 40px;
}

.step h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

pre {
    background: var(--dark-bg);
    color: #fff;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

code {
    font-size: 1rem;
}

/* New Features Section */
.new-features {
    margin-top: 60px;
    padding: 40px;
    background: var(--gradient);
    border-radius: 12px;
    color: white;
}

.new-features h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 600px;
    margin: 0 auto;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

.feature-item code {
    background: rgba(0, 0, 0, 0.3);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.95rem;
    white-space: nowrap;
}

.feature-item strong {
    color: white;
    font-size: 1.1rem;
}

.feature-item span {
    flex: 1;
    opacity: 0.95;
}

/* Comparison Section */
.comparison {
    padding: 80px 0;
    background: white;
}

.comparison h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.comparison-table {
    max-width: 900px;
    margin: 0 auto;
    background: var(--light-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.comparison-header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    background: var(--dark-bg);
    color: white;
    padding: 20px;
    font-weight: 600;
    text-align: center;
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid var(--border-color);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-feature {
    padding: 20px;
    font-weight: 600;
    background: white;
    display: flex;
    align-items: center;
}

.without, .with {
    padding: 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.without {
    background: #fff5f5;
}

.with {
    background: #f0fdf4;
}

.comparison-x {
    font-size: 2rem;
    color: #e74c3c;
}

.comparison-check {
    font-size: 2rem;
    color: #27ae60;
}

.comparison-note {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.comparison code {
    background: var(--dark-bg);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.95rem;
    display: inline-block;
}

/* Use Cases Section */
.use-cases {
    padding: 80px 0;
    background: var(--light-bg);
}

.use-cases h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.use-case {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.use-case h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.use-case p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Demo Section */
.demo {
    padding: 80px 0;
    background: white;
}

.demo h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.demo-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.demo-gif {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.demo-features ul {
    list-style: none;
}

.demo-features li {
    padding: 10px 0;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-section p {
    color: #aaa;
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #333;
    color: #666;
}

.version-note {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #888;
}

.version-note code {
    background: #333;
    color: #fff;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero .tagline {
        font-size: 1.2rem;
    }
    
    .problem-solution-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
    
    .comparison-header,
    .comparison-row {
        grid-template-columns: 1fr;
        text-align: left;
    }
    
    .comparison-feature {
        background: var(--dark-bg);
        color: white;
        font-size: 0.9rem;
    }
    
    .without, .with {
        padding: 15px;
        border-bottom: 1px solid var(--border-color);
    }
    
    .new-features {
        padding: 30px 20px;
    }
    
    .feature-item {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .demo-content {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}