:root{color-scheme:light dark;--bg:#fbfcf9;--fg:#1a1f1a;--muted:#5d665d;--accent:#1f8a4c;--rule:#e1e6e1}
@media (prefers-color-scheme:dark){:root{--bg:#121512;--fg:#eef2ee;--muted:#a3ada3;--accent:#4fc27f;--rule:#2a302a}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.55 -apple-system,BlinkMacSystemFont,"SF Pro Text",Inter,system-ui,sans-serif}
main{max-width:680px;margin:0 auto;padding:32px 20px 64px}h1{font-size:28px;line-height:1.2;margin:0 0 6px}h2{font-size:20px;margin:32px 0 8px}
p,li{margin:0 0 12px}ul{padding-left:20px}.meta{color:var(--muted);font-size:14px;margin-bottom:24px}a{color:var(--accent)}
.todo{background:#fff4d6;color:#5a4500;border-radius:6px;padding:1px 6px;font-weight:600}@media (prefers-color-scheme:dark){.todo{background:#4a3a00;color:#ffe49a}}
nav{font-size:14px;color:var(--muted);margin-bottom:28px}nav a{margin-right:14px}hr{border:0;border-top:1px solid var(--rule);margin:28px 0}