:root {
    --bg: #ffffff;
    --text: #1d1d1f;
    --muted: #6e6e73;
    --accent: #e8590c;
    --line: #d2d2d7;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #000000;
        --text: #f5f5f7;
        --muted: #a1a1a6;
        --accent: #ff922b;
        --line: #3a3a3c;
    }
}
* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 32px 16px 48px; }
header.site { max-width: 680px; margin: 0 auto; padding: 20px 16px 0; }
header.site a { color: var(--text); font-weight: 600; text-decoration: none; }
a { color: var(--accent); }
h1 { font-size: 2rem; line-height: 1.2; margin: 0.4em 0; }
h2 { font-size: 1.3rem; margin-top: 2em; }
h3 { font-size: 1.05rem; margin-top: 1.5em; }
.muted { color: var(--muted); }
.app { display: flex; gap: 20px; align-items: center; margin: 32px 0; }
.app img { width: 96px; height: 96px; border-radius: 22px; }
.app h2 { margin: 0; }
hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }
footer { max-width: 680px; margin: 0 auto; padding: 16px; border-top: 1px solid var(--line); font-size: 0.9rem; }
footer a { color: var(--muted); margin-right: 16px; }