:root{--ink:#14212b;--muted:#51616d;--rule:#d9e1e7;--bg:#ffffff;--accent:#0b5c74;--soft:#eef4f7}
@media (prefers-color-scheme:dark){:root{--ink:#e8eef2;--muted:#a9b6bf;--rule:#2b3a44;--bg:#0f171d;--accent:#7cc7e0;--soft:#162129}}
*{box-sizing:border-box}html{font-size:17px}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;line-height:1.6}
a{color:var(--accent)}main,header.site,footer.site{max-width:760px;margin:0 auto;padding:0 20px}header.site{padding-top:22px;display:flex;justify-content:space-between;align-items:center;gap:16px}
header.site img{height:34px;width:auto}header.site nav a{margin-left:16px;text-decoration:none;color:var(--muted)}h1{font-size:2rem;line-height:1.15;margin:.6em 0 .3em}h2{font-size:1.35rem;margin:1.6em 0 .4em}h3{font-size:1.1rem;margin:1.3em 0 .3em}
p.lead{font-size:1.15rem;color:var(--muted)}.rule{height:1px;background:var(--rule);margin:22px 0}.card{border:1px solid var(--rule);border-radius:12px;padding:18px 20px;margin:14px 0;background:var(--soft)}
.meta{color:var(--muted);font-size:.9rem}ul.posts{list-style:none;padding:0}ul.posts li{padding:12px 0;border-bottom:1px solid var(--rule)}img.hero{width:100%;height:auto;border-radius:12px;margin:14px 0}
footer.site{color:var(--muted);font-size:.9rem;padding:30px 20px 40px;border-top:1px solid var(--rule);margin-top:40px}.note{font-size:.95rem;color:var(--muted)}