:root{
    --color-text: #1a1a1a;
    --color-bg: #ffffff;
    --font-serif: Georgia, "Times New Roman" serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-text: #e8e8e8;
        --color-bg: #1a1a1a;
    }
}

body {
    font-family: var(--font-serif);
    line-height: 1.6;
    max-width: 65ch;
    margin: 2rem auto;
    padding: 0 1rem;
    color: var(--color-text);
    background-color: var(--color-bg);
}

h1 {
    font-weight: 600;
    font-family: var(--font-sans);
}

p {
    margin-bottom: 1rem;
}