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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background-color: white;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 20px;
    margin-bottom: 20px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 60px 40px;
}

.logo-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 15px;
}

.logo {
    width: 60px;
    height: 60px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 0;
    letter-spacing: -2px;
}

.tagline {
    font-size: 1.4rem;
    margin-bottom: 10px;
    font-weight: 500;
    opacity: 0.95;
    text-align: center;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.8;
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

/* Main Content */
main {
    padding: 40px;
}

section {
    margin-bottom: 50px;
}

h2 {
    color: #34495e;
    font-size: 1.5rem;
    margin-top: 30px;
    margin-bottom: 15px;
}

h3 {
    color: #4a5568;
    font-size: 1.2rem;
    margin-top: 20px;
    margin-bottom: 10px;
}

p {
    margin-bottom: 15px;
    text-align: justify;
}

ul, ol {
    margin: 15px 0;
    padding-left: 30px;
}

li {
    margin-bottom: 8px;
}

strong {
    color: #2c3e50;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
    color: #6c757d;
    font-size: 0.9rem;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.feature {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.feature h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

/* Philosophy Section */
.philosophy {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 40px;
    border-radius: 12px;
    text-align: center;
}

.philosophy h2 {
    color: white;
    font-size: 2rem;
    margin-bottom: 20px;
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.plan {
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    position: relative;
    transition: transform 0.3s ease;
}

.plan:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.plan.premium {
    border-color: #667eea;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.plan h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.price {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 20px;
}

.price span {
    font-size: 1rem;
    opacity: 0.7;
}

.plan ul {
    list-style: none;
    padding: 0;
}

.plan li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.plan.premium li {
    border-bottom-color: rgba(255,255,255,0.2);
}

.popular {
    position: absolute;
    top: -15px;
    right: 20px;
    background: #f5576c;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

.trial-note {
    text-align: center;
    font-style: italic;
    opacity: 0.7;
    margin-top: 20px;
}

/* Download Section */
.download {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    padding: 50px 40px;
    border-radius: 12px;
    text-align: center;
}

.download h2 {
    color: white;
    font-size: 2rem;
    margin-bottom: 15px;
}

.download-buttons {
    margin-top: 30px;
}

.btn-download {
    background: white;
    color: #4facfe;
    padding: 15px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    display: inline-block;
    margin-right: 20px;
    transition: transform 0.3s ease;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.coming-soon {
    opacity: 0.7;
    font-style: italic;
}

/* Educational Section */
.educational {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 12px;
}

.educational ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.educational li {
    background: white;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #28a745;
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    padding: 40px;
    text-align: center;
}

footer p {
    text-align: center;
    margin-bottom: 10px;
}

.footer-links {
    margin-bottom: 20px;
}

.footer-links a {
    color: #3498db;
    text-decoration: none;
}

.footer-links span {
    margin: 0 10px;
    opacity: 0.5;
}

.powered-by {
    margin-top: 10px;
    font-size: 0.9rem;
    opacity: 0.7;
}

.powered-by a {
    color: #3498db;
}

@media (max-width: 768px) {
    .container {
        margin: 10px;
        border-radius: 0;
    }
    
    .hero {
        padding: 40px 20px;
    }
    
    .logo-title {
        flex-direction: column;
        gap: 10px;
    }
    
    .logo {
        width: 50px;
        height: 50px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1.2rem;
    }
    
    main {
        padding: 20px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .philosophy, .download {
        padding: 30px 20px;
    }
    
    .download-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn-download {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .educational ul {
        grid-template-columns: 1fr;
    }
}