:root {
    --bg-primary: #232629;
    --bg-secondary: #31363b;
    --text-primary: #eff0f1;
    --accent: #3daee9;
    --code-bg: #1c1f23;
    --border-color: #777e8c;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background-color: var(--bg-secondary);
    padding: 2rem 1rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

h1, h2, h3 {
    color: var(--accent);
}

nav {
    background-color: var(--bg-secondary);
    padding: 1rem;
}

nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

nav a {
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

nav a:hover {
    background-color: var(--accent);
    color: var(--bg-primary);
}

main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
}

pre {
    background-color: var(--code-bg);
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
}

code {
    font-family: monospace;
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    position: fixed;
    bottom: 0;
    width: 100%;
}

a {
    color: var(--accent);
}

@media (max-width: 600px) {
    nav ul {
        flex-direction: column;
    }
}