body {
    font-family: 'Lato', sans-serif;
    background-color: #f9f9f9;
    color: #333;
    margin: 0;
    padding: 0;
}

header {
    background-color: #2c3e50;
    color: #ecf0f1;          
    text-align: center;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

header h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 32px;
    margin: 0;
}

nav {
    margin-top: 10px;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: center;
}

nav ul li {
    display: inline-block;
    margin: 0 15px;
}

nav ul li a {
    text-decoration: none;
    color: #ecf0f1;
    font-weight: 600;
    font-size: 18px;
    padding: 10px;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #e74c3c;
}

main {
    padding: 40px 20px;
    max-width: 1000px;
    margin: 0 auto;
    padding-bottom: 4rem;
}

section h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 28px;
    color: #2c3e50;
    border-bottom: 2px solid #e74c3c; 
    padding-bottom: 10px;
    margin-bottom: 30px;
}

section p {
    font-size: 18px;
    line-height: 1.6;
}

section ul {
    font-size: 18px;
    line-height: 1.6;
    margin-left: 20px;
    list-style-type: square;
}

section ul li {
    margin-bottom: 15px;
}

section ul ul {
    margin-top: 10px;
    list-style-type: circle;
}

section ul ul li {
    margin-bottom: 10px;
}

footer {
    background-color: #2c3e50;
    color: #bdc3c7;
    text-align: center;
    padding: 15px 0;
    border-top: 3px solid #e74c3c;
    position: relative; 
    bottom: 0;
    width: 100%;
}

footer p {
    margin: 0;
    font-size: 16px;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 24px;
    }
    nav ul li {
        margin: 0 10px;
    }
    nav ul li a {
        font-size: 16px;
    }
    section h2 {
        font-size: 24px;
    }
    section p,
    section ul {
        font-size: 16px;
    }
}