body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
    background: #f8f9fa;
}

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

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 80px 20px;
    margin: -20px -20px 40px -20px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin: 0 0 16px 0;
}

.tagline {
    font-size: 24px;
    font-weight: 300;
    margin: 0;
    opacity: 0.95;
}

.content {
    background: white;
    border-radius: 12px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

section {
    margin-bottom: 60px;
}

section:last-child {
    margin-bottom: 0;
}

h2 {
    font-size: 32px;
    font-weight: 600;
    color: #2c3e50;
    margin: 0 0 20px 0;
}

h3 {
    font-size: 20px;
    font-weight: 600;
    color: #34495e;
    margin: 0 0 12px 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.feature {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.feature p {
    margin: 0;
    color: #555;
}

.download {
    text-align: center;
}

.app-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 30px;
    flex-wrap: wrap;
}

.app-button {
    display: inline-block;
    padding: 16px 32px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
}

.app-button:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.app-button.ios {
    background: #000;
}

.app-button.ios:hover {
    background: #333;
}

.app-button.android {
    background: #3ddc84;
}

.app-button.android:hover {
    background: #2bc16d;
}

.privacy {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #e0e0e0;
}

.privacy a {
    color: #667eea;
    font-weight: 600;
    text-decoration: none;
    font-size: 18px;
}

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

@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }

    .tagline {
        font-size: 18px;
    }

    .content {
        padding: 24px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }
}