body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    padding: 40px;
    max-width: 800px;
    margin: auto;
    line-height: 1.6;
}

h1, h3 {
    color: #2b2b2b;
}

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

ul li {
    margin: 10px 0;
    padding-left: 20px;
    position: relative;
}

button {
    background-color: #3CB371;
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 10px;
    transition: background-color 0.3s ease;
    margin-top: 20px;
}

button:hover {
    background-color: #2e8b57;
}

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

    button {
        width: 100%;
    }
}