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

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

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    min-height: 100vh;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem 2rem;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

header .tagline {
    font-size: 1rem;
    opacity: 0.95;
}

main {
    padding: 2rem;
}

section {
    margin-bottom: 3rem;
}

section.download {
    background: linear-gradient(135deg, #f5f7ff 0%, #f0f4ff 100%);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 3rem;
}

section.download h2 {
    color: #333;
    border-bottom: none;
    margin-bottom: 2rem;
}

.store-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    color: white;
}

.btn-apple {
    background: #000;
}

.btn-apple:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-google {
    background: #4285F4;
}

.btn-google:hover {
    background: #357ae8;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(66, 133, 244, 0.3);
}

.btn svg {
    width: 24px;
    height: 24px;
}

h2 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 1.8rem;
    border-bottom: 2px solid #667eea;
    padding-bottom: 0.5rem;
}

h3 {
    color: #764ba2;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

p {
    margin-bottom: 1rem;
    color: #555;
}

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

.features li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
}

.features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.privacy {
    background-color: #f8f9ff;
    padding: 1.5rem;
    border-radius: 8px;
}

.contact-info {
    background-color: #fff8f0;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1rem;
}

.contact-info p {
    font-weight: 500;
    color: #333;
}

.contact-info a {
    color: #667eea;
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1.5rem;
    margin-top: auto;
}

@media (max-width: 768px) {
    .container {
        box-shadow: none;
    }
    
    header {
        padding: 2rem 1rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    main {
        padding: 1.5rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .store-buttons {
        gap: 1rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .btn svg {
        width: 20px;
        height: 20px;
    }
}