:root{--bg:#fbfaf7;--fg:#1d2327;--muted:#5f6b72;--line:#e4e1da;--accent:#1d7a63;--code:#f1efe9}
@media (prefers-color-scheme:dark){:root{--bg:#14191c;--fg:#e3e6e8;--muted:#9aa5ab;--line:#283035;--accent:#7fd1b9;--code:#1c2327}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 Georgia,"PT Serif","Times New Roman",serif}
.wrap{max-width:720px;margin:0 auto;padding:0 16px}
.top{border-bottom:1px solid var(--line)}
.top .wrap{display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;justify-content:space-between;padding-top:14px;padding-bottom:14px}
.brand{font:600 16px/1.3 system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--fg);text-decoration:none}
.mark{font-family:ui-monospace,Menlo,Consolas,monospace;color:var(--accent)}
nav a{font:15px system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--muted);text-decoration:none;margin-left:18px}
nav a:first-child{margin-left:0}
nav a:hover,a:hover{color:var(--accent)}
a{color:var(--accent)}
.hero{padding:40px 0 12px}
.hero h1{font-size:30px;line-height:1.25;margin:0 0 8px}
.hero p{color:var(--muted);margin:0}
.card{padding:22px 0;border-bottom:1px solid var(--line)}
.card h2{font-size:22px;margin:4px 0 6px;line-height:1.3}
.card h2 a{color:var(--fg);text-decoration:none}
.card h2 a:hover{color:var(--accent)}
.card p{margin:0;color:var(--muted)}
time{font:13px system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--muted);letter-spacing:.02em}
.post{padding:36px 0 8px}
.post h1{font-size:30px;line-height:1.25;margin:6px 0 10px}
.post h2{font-size:21px;margin:30px 0 8px}
.lead{color:var(--muted);font-size:18px}
code{font:14px/1.5 ui-monospace,Menlo,Consolas,monospace;background:var(--code);padding:1px 5px;border-radius:4px}
pre{background:var(--code);border:1px solid var(--line);border-radius:6px;padding:14px 16px;overflow-x:auto}
pre code{background:none;padding:0}
.back{margin-top:32px;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;font-size:15px}
.foot{color:var(--muted);font:13px system-ui,-apple-system,"Segoe UI",sans-serif;padding-top:28px;padding-bottom:40px;border-top:1px solid var(--line);margin-top:40px}