:root{--bg:#fafaf9;--fg:#1c1917;--muted:#57534e;--line:#e7e5e4;--card:#fff;--accent:#2563eb}
@media (prefers-color-scheme:dark){:root{--bg:#141414;--fg:#f5f5f4;--muted:#a8a29e;--line:#2e2e2e;--card:#1c1c1c;--accent:#60a5fa}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center;padding-top:16px;padding-bottom:16px;gap:12px;flex-wrap:wrap}
.logo{font-weight:700;font-size:1.15rem;color:var(--fg);text-decoration:none}
nav a{color:var(--muted);text-decoration:none;margin-left:16px;font-size:.95rem}
nav a:first-child{margin-left:0}
nav a:hover{color:var(--accent)}
main{padding:32px 0 48px}
h1{font-size:1.8rem;line-height:1.25;margin:0 0 8px}
h2{font-size:1.2rem;margin:32px 0 8px}
h3{font-size:1.02rem;margin:20px 0 4px}
a{color:var(--accent)}
.muted{color:var(--muted)}
.app{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:16px 0}
.app h2{margin:0 0 4px}
.app p{margin:0 0 10px}
.links a{margin-right:16px;white-space:nowrap}
footer{border-top:1px solid var(--line);padding:20px 0 32px;font-size:.9rem;color:var(--muted)}
footer a{color:var(--muted);margin-right:16px}
ul{padding-left:20px}