* {
    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;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    max-width: 600px;
    width: 100%;
}

h1 {
    color: #667eea;
    margin-bottom: 10px;
    font-size: 2.5em;
}

.subtitle {
    color: #666;
    font-size: 1.1em;
    margin-bottom: 30px;
}

h2 {
    color: #764ba2;
    margin-top: 20px;
    margin-bottom: 15px;
    font-size: 1.5em;
}

.content ul {
    list-style: none;
    margin-bottom: 20px;
}

.content li {
    padding: 8px 0;
    font-size: 1.1em;
}

.features {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
    margin-top: 20px;
}

.features p {
    margin: 10px 0;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    color: #999;
    font-size: 0.9em;
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 1.8em;
    }

    .subtitle {
        font-size: 1em;
    }
}