body {
    user-select: none;
    font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
    background: #f9f9f9;
    color: #222;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 700px;
    margin: 40px auto 24px auto;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
    padding: 36px 28px 28px 28px;
}

h1 {
    font-size: 2.1em;
    margin-bottom: 0.2em;
    color: #2ecc71; 
}

h2,
h3 {
    color: #333;
    margin-top: 1.7em;
    margin-bottom: 0.5em;
}

p,
li {
    font-size: 1.08em;
    line-height: 1.7;
    margin-bottom: 0.7em;
}

ul {
    margin-left: 1.2em;
}

.footer {
    text-align: center;
    color: #888;
    font-size: 0.98em;
    margin-top: 32px;
    padding-bottom: 12px;
}

a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    .container {
        padding: 18px 6px;
    }

    h1 {
        font-size: 1.3em;
    }
}