/* Reset some basic elements for consistency */
body, h1, h2, h3, h4, h5, h6, p, ol, ul, figure, blockquote, dl, dd {
    margin: 0;
    padding: 0;
    font-weight: normal;
}

/* Global settings */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    padding: 20px;
    max-width: 900px;
    margin: 0 auto;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: #222;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5em;
    margin-top: 1rem;
}

h2 {
    font-size: 2em;
    margin-top: 1.5rem;
}

h3 {
    font-size: 1.75em;
    margin-top: 1.75rem;
}

h4 {
    font-size: 1.5em;
    margin-top: 2rem;
}

h5 {
    font-size: 1.25em;
    margin-top: 2.25rem;
}

h6 {
    font-size: 1em;
    margin-top: 2.5rem;
}

p {
    margin-bottom: 1.5rem;
}

a {
    color: #0366d6;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Header */
header {
    background: #0366d6;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

header nav a {
    margin: 0 15px;
    color: #fff;
    text-transform: uppercase;
    font-weight: bold;
}

header nav a:hover {
    color: #dcdcdc;
}

/* Main content */
main {
    background: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

main img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
}

main code {
    background: #f5f5f5;
    padding: 2px 5px;
    border-radius: 3px;
}

pre {
    background: #f5f5f5;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

/* Footer */
footer {
    text-align: center;
    padding: 10px 0;
    font-size: 0.875em;
    color: #777;
}

/* Responsive design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    header nav a {
        display: block;
        margin: 5px 0;
    }
}