* {
    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: #333;
    background-color: #f8f9fa;
}

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

/* Header */
header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #000;
}

/* Hero Section */
.hero {
    background: #000;
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: #ffd700;
}

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

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

/* Featured Section */
.featured {
    padding: 4rem 0;
    background-color: #fff;
}

.featured h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1f2937;
}

.app-card {
    background: linear-gradient(135deg, #ff8c00 0%, #ff6347 100%);
    color: white;
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    max-width: 600px;
    margin: 0 auto;
}

.app-card h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.app-card p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    background-color: white;
    color: #ff6347;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

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

/* About Section */
.about {
    padding: 4rem 0;
    background-color: #f8f9fa;
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #1f2937;
}

.about p {
    font-size: 1.1rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    color: #4b5563;
}

/* Footer */
footer {
    background-color: #1f2937;
    color: white;
    padding: 2rem 0;
    text-align: center;
}

footer p {
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero .tagline {
        font-size: 1.2rem;
    }
    
    .hero .description {
        font-size: 1rem;
    }
    
    .featured h2,
    .about h2 {
        font-size: 2rem;
    }
    
    .app-card {
        padding: 2rem;
    }
    
    .app-card h3 {
        font-size: 1.5rem;
    }
}