* {
    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: #1a1a1a;
    background: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: #1a1a1a;
    color: white;
    padding: 40px 0;
    text-align: center;
}

header h1 {
    font-size: 48px;
    font-weight: 400;
    margin-bottom: 8px;
}

.subtitle {
    font-size: 18px;
    color: #888;
    font-weight: 300;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
}

.hero h2 {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.lead {
    font-size: 20px;
    color: #666;
    max-width: 700px;
    margin: 0 auto 40px;
}

.cta-button {
    display: inline-block;
    padding: 16px 32px;
    background: #1a1a1a;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s;
}

.cta-button:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Features Section */
.features {
    padding: 80px 0;
    background: #ffffff;
}

.features h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 60px;
    color: #1a1a1a;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    padding: 30px;
    background: #fafafa;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    border-color: #d0d0d0;
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.feature-card p {
    color: #666;
    font-size: 15px;
    line-height: 1.6;
}

/* How It Works */
.how-it-works {
    padding: 80px 0;
    background: #fafafa;
}

.how-it-works h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 60px;
    color: #1a1a1a;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: #1a1a1a;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 600;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.step p {
    color: #666;
    font-size: 15px;
}

/* Screenshots */
.screenshots {
    padding: 80px 0;
    background: #ffffff;
}

.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.screenshot-item {
    background: #fafafa;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s;
}

.screenshot-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    border-color: #d0d0d0;
}

.screenshot-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    background: #ffffff;
    max-height: 400px;
    object-position: top;
}

.screenshot-item p {
    padding: 16px;
    text-align: center;
    font-size: 16px;
    font-weight: 500;
    color: #1a1a1a;
    margin: 0;
    background: #ffffff;
    border-top: 1px solid #e0e0e0;
}

/* Install Section */
.install {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #333 100%);
    color: white;
    text-align: center;
}

.install h2 {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 20px;
}

.install p {
    font-size: 18px;
    color: #ccc;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.install .cta-button {
    background: white;
    color: #1a1a1a;
}

.install .cta-button:hover {
    background: #f5f5f5;
}

/* Footer */
footer {
    background: #1a1a1a;
    color: #888;
    padding: 40px 0;
    text-align: center;
}

.footer-links {
    margin-top: 16px;
}

.footer-links a {
    color: #888;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 36px;
    }
    
    .hero h2 {
        font-size: 32px;
    }
    
    .lead {
        font-size: 18px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .screenshot-grid {
        grid-template-columns: 1fr;
    }
}