:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --accent-color: #0070f3;
    --code-bg: #f5f5f5;
    --border-color: #eaeaea;
    --container-width: 800px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0d1117;
        --text-color: #c9d1d9;
        --accent-color: #58a6ff;
        --code-bg: #161b22;
        --border-color: #30363d;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 20px;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
}

header {
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
}

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

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

pre {
    background-color: var(--code-bg);
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

code {
    font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
    font-size: 0.9em;
}

.api-card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.2s;
}

.api-card:hover {
    transform: translateY(-2px);
}

.price {
    font-weight: bold;
    color: #2ea44f;
}

footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.nav {
    margin-bottom: 1rem;
}

.nav a {
    margin-right: 1rem;
}