:root {
    --bg: #ffffff;
    --text: #222222;
    --link: #0070f3;
    --accent: #888888;
    --code-bg: #f5f5f5;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1a1a1a;
        --text: #eeeeee;
        --link: #3291ff;
        --accent: #a0a0a0;
        --code-bg: #2a2a2a;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    max-width: 700px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

header, footer { margin-bottom: 3rem; }
footer { margin-top: 5rem; color: var(--accent); font-size: 0.9rem; }

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.2; margin-top: 2rem; }

ul { list-style: none; padding: 0; }
li { margin-bottom: 1rem; display: flex; align-items: baseline; }
li time { font-family: monospace; color: var(--accent); margin-right: 1rem; flex-shrink: 0; }

pre { background: var(--code-bg); padding: 1rem; overflow-x: auto; border-radius: 5px; }
code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; font-size: 0.9em; }