* {
    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: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

html {
    scroll-behavior: smooth;
}

.hero-logo {
    height: 80px;
    width: auto;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
}

.store-badge {
    height: 60px;
    width: auto;
    transition: transform 0.2s ease;
    margin: 0.5rem;
}

.store-badge:hover {
    transform: scale(1.05);
}

.store-badge.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    filter: grayscale(0.8);
}

.store-badge.disabled:hover {
    transform: none;
}

.hero {
    text-align: center;
    padding: 4rem 2rem;
    color: white;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.hero .tagline {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 2rem;
    text-shadow: 0 1px 5px rgba(0,0,0,0.2);
}

.hero .subtitle {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 3rem;
    opacity: 0.95;
    line-height: 1.7;
}

.cta-container {
    margin-bottom: 3rem;
}

.cta-button {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    margin: 0.5rem;
}

.cta-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 24px 24px 0 0;
    box-shadow: 0 -10px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

.section {
    padding: 4rem 3rem;
}

.section:nth-child(even) {
    background: #f8f9fa;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #6c757d;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    border-left: 4px solid #667eea;
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.feature-card p {
    color: #555;
    line-height: 1.6;
}

.tests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.test-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 3px solid #667eea;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.test-card h4 {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.test-card p {
    color: #666;
    font-size: 0.95rem;
}

.benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.benefit-icon {
    background: #667eea;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: bold;
}

.benefit-text {
    flex: 1;
}

.benefit-text h4 {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.benefit-text p {
    color: #666;
    font-size: 0.95rem;
}

.disclaimer {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 12px;
    padding: 2rem;
    margin: 3rem 0;
}

.disclaimer h3 {
    color: #856404;
    font-weight: 600;
    margin-bottom: 1rem;
}

.disclaimer p {
    color: #856404;
    line-height: 1.6;
}

.footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem;
}

.footer p {
    margin-bottom: 0.5rem;
}

.footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.footer a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .hero-logo {
        height: 60px;
    }
    
    .store-badge {
        height: 50px;
    }
    
    .hero {
        padding: 3rem 1rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .tagline {
        font-size: 1.2rem;
    }
    
    .hero .subtitle {
        font-size: 1rem;
    }
    
    .section {
        padding: 3rem 1.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .features-grid,
    .tests-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-logo {
        height: 50px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .store-badge {
        height: 45px;
    }
    
    .cta-button {
        display: block;
        margin: 1rem auto;
        max-width: 280px;
    }
    
    .section {
        padding: 2rem 1rem;
    }
}