.container {
    max-width: 900px;
    margin: auto;
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
}

h1, h2 {
    color: #2c3e50;
    font-weight: 700;
}

h1 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
}

h2 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #2980b9;
}

ul {
    padding-left: 1.5rem;
}

ul li {
    margin-bottom: 0.6rem;
    line-height: 1.6;
    color: #333;
}

ul li strong {
    color: #2c3e50;
}

ul li ul {
    list-style-type: circle;
    margin-top: 0.5rem;
    padding-left: 1.5rem;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }
}