:root {
    --bg: #fbfbfa;
    --fg: #1c1b19;
    --muted: #5f5c57;
    --rule: #e2e0dc;
    --accent: #2f5d8a;
    --code-bg: #f1efec;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #16181c;
        --fg: #e6e4e0;
        --muted: #9d9a94;
        --rule: #2c2f35;
        --accent: #8fb6dd;
        --code-bg: #21242a;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

main {
    max-width: 44rem;
    margin: 0 auto;
    padding: 3.5rem 1.5rem 5rem;
}

h1 {
    margin: 0 0 0.4rem;
    font-size: 1.7rem;
    letter-spacing: -0.01em;
}

h2 {
    margin: 2.4rem 0 0.6rem;
    font-size: 1.05rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--muted);
}

p, li { margin: 0.7rem 0; }

ul { padding-left: 1.2rem; }

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

.lede {
    font-size: 1.05rem;
    color: var(--muted);
    margin-bottom: 2rem;
}

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

code {
    background: var(--code-bg);
    padding: 0.1em 0.35em;
    border-radius: 3px;
}

pre {
    background: var(--code-bg);
    padding: 0.9rem 1.1rem;
    border-radius: 6px;
    overflow-x: auto;
}

footer {
    margin-top: 3.5rem;
    padding-top: 1.2rem;
    border-top: 1px solid var(--rule);
    color: var(--muted);
    font-size: 0.9rem;
}