/* General Styles */
body {
    font-family: 'Open Sans', Arial, sans-serif;
    color: #333;
    line-height: 1.6;
    background-color: #f5f6f7;
    margin: 0;
    padding: 0 20px;
}

/* Headings */
h1, h2, h3 {
    font-weight: bold;
    margin-bottom: 15px;
    color: #2c3e50;
}

h1 {
    font-size: 2.8em;
    color: #e74c3c;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-bottom: 3px solid #e74c3c;
    padding-bottom: 10px;
}

h2 {
    font-size: 2.2em;
    color: #3498db;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border-bottom: 2px solid #3498db;
    padding-bottom: 8px;
}

h3 {
    font-size: 1.8em;
    color: #2980b9;
    text-transform: uppercase;
    margin-bottom: 10px;
}

/* Paragraph */
p {
    font-size: 1.15em;
    margin-bottom: 20px;
    color: #555;
    line-height: 1.8;
}

/* Unordered List */
ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

li {
    background-color: #ecf0f1;
    margin-bottom: 10px;
    padding: 12px;
    border-radius: 5px;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    font-size: 1.05em;
}

li:hover {
    background-color: #bdc3c7;
    box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
}

/* Links */
a {
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease, text-decoration 0.3s ease;
}

a:hover {
    color: #e74c3c;
    text-decoration: underline;
}

/* Div */
div {
    background-color: #fff;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid #dcdcdc;
}

/* Preformatted Text (pre) */
pre {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.95em;
    line-height: 1.6;
    box-shadow: 0px 2px 10px rgba(0, 0, 0, 0.1);
}

/* Scrollbar for pre tag */
pre::-webkit-scrollbar {
    height: 8px;
}

pre::-webkit-scrollbar-thumb {
    background-color: #7f8c8d;
    border-radius: 10px;
}

pre::-webkit-scrollbar-thumb:hover {
    background-color: #95a5a6;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2.2em;
    }

    h2 {
        font-size: 1.8em;
    }

    h3 {
        font-size: 1.5em;
    }

    p {
        font-size: 1em;
    }

    li {
        font-size: 1em;
    }

    div {
        padding: 15px;
    }

    pre {
        font-size: 0.9em;
    }
}