:root{--bg:#ffffff;--text:#16141c;--muted:#5d5868;--line:#e6e3ec;--accent:#5b3fd6}
@media (prefers-color-scheme:dark){:root{--bg:#121019;--text:#efedf5;--muted:#a9a3b8;--line:#2a2635;--accent:#a996ff}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:760px;margin:0 auto;padding:48px 16px 64px}
header{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:32px}
.brand{font-weight:800;letter-spacing:-.01em;color:var(--text);text-decoration:none}
nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-size:.95rem}
nav a:first-child{margin-left:0}
h1{font-size:2rem;line-height:1.2;letter-spacing:-.02em;margin:0 0 6px}
h2{font-size:1.15rem;margin:32px 0 6px}
.meta{color:var(--muted);margin:0 0 24px}
a{color:var(--accent)}
footer{margin-top:48px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}