body { margin: 0; background: #fafafa; color: #1a1a1a; font: 17px/1.6 system-ui, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 2rem; margin: .2em 0; }
h2 { font-size: 1.2rem; margin-top: 1.8em; }
a { color: #c00; }
code { background: #eee; padding: 0 4px; border-radius: 3px; }
.meta { color: #666; font-size: .9rem; }
.yt { display: inline-block; background: #fff; border: 1px solid #ddd; border-radius: 8px; padding: 6px 12px; }
.logo { display: inline-block; background: #f00; color: #fff; border-radius: 6px; padding: 0 8px; margin-right: 4px; }
nav { margin-top: 2.5em; padding-top: 1em; border-top: 1px solid #ddd; }