:root{color-scheme:light;--ink:#1a1a1a;--muted:#6a6a6a;--bg:#f6f6f4;--card:#fff;--line:rgba(0,0,0,.09);--accent:#2a7af6;}
*{box-sizing:border-box;}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;line-height:1.65;}
a{color:var(--accent);text-decoration:none;}
a:hover{text-decoration:underline;}
.topbar{display:flex;align-items:center;justify-content:space-between;max-width:820px;margin:0 auto;padding:20px 22px;}
.brand{font-weight:700;color:var(--ink);font-size:18px;}
.brand .mark{font-family:Georgia,serif;margin-right:2px;}
.topbar nav a{margin-left:18px;color:var(--ink);font-size:15px;}
main{max-width:720px;margin:0 auto;padding:8px 22px 64px;}
.crumbs{font-size:13px;color:var(--muted);margin:8px 0 24px;}
.crumbs a{color:var(--muted);}
.post-head h1{font-size:34px;line-height:1.15;margin:0 0 10px;letter-spacing:-.01em;}
.byline{color:var(--muted);font-size:14px;margin:0 0 26px;}
.tldr{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:10px;padding:14px 18px;margin:0 0 28px;font-size:16px;box-shadow:0 4px 16px rgba(0,0,0,.05);}
.post-body{font-size:17.5px;}
.post-body h2{font-size:23px;margin:38px 0 12px;letter-spacing:-.01em;}
.post-body h3{font-size:18px;margin:26px 0 8px;}
.post-body p{margin:0 0 18px;}
.post-body ul,.post-body ol{margin:0 0 18px;padding-left:24px;}
.post-body li{margin:7px 0;}
.post-body blockquote{margin:22px 0;padding:4px 18px;border-left:3px solid var(--line);color:#333;font-style:italic;}
.takeaways{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:8px 22px 18px;margin:36px 0;box-shadow:0 6px 20px rgba(0,0,0,.05);}
.takeaways h2{font-size:18px;}
.cta{background:#111;color:#eee;border-radius:14px;padding:22px 24px;margin:40px 0;}
.cta a{color:#8ab6ff;}
.cta .btn{display:inline-block;margin-top:8px;background:#fff;color:#111;font-weight:600;padding:10px 18px;border-radius:10px;}
.cta .btn:hover{text-decoration:none;opacity:.9;}
.related h2{font-size:18px;margin-top:36px;}
.related ul{padding-left:20px;}
.sitefoot{max-width:720px;margin:0 auto;padding:30px 22px 60px;border-top:1px solid var(--line);color:var(--muted);font-size:14px;}
.sitefoot a{color:var(--muted);text-decoration:underline;}
.muted{color:var(--muted);}
.blog-hero{padding:20px 0 10px;}
.blog-hero h1{font-size:36px;margin:0 0 8px;letter-spacing:-.02em;}
.blog-hero p{color:var(--muted);font-size:18px;max-width:560px;}
.post-list{list-style:none;padding:0;margin:26px 0 0;}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:0 0 16px;box-shadow:0 4px 16px rgba(0,0,0,.04);}
.card h2{font-size:20px;margin:0 0 6px;}
.card h2 a{color:var(--ink);}
.card .meta{color:var(--muted);font-size:13px;margin:0 0 8px;}
.card p{margin:0 0 8px;font-size:15.5px;}
.card .tags span{display:inline-block;font-size:12px;color:var(--muted);background:var(--bg);border:1px solid var(--line);border-radius:20px;padding:2px 10px;margin-right:4px;}
@media(max-width:520px){.post-head h1{font-size:28px;}.post-body{font-size:17px;}}