:root{
  --bg:#0a0d12;
  --card:#131a26;
  --line:#222e40;
  --text:#eef2f8;
  --muted:#9fb0c6;
  --faint:#6b7c94;
  --accent:#37d0c4;
  --accent-2:#f5b544;
  --maxw:1120px;
  --readw:720px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:
    radial-gradient(1100px 520px at 82% -8%, rgba(55,208,196,.09), transparent 60%),
    radial-gradient(900px 460px at 0% 0%, rgba(245,181,68,.05), transparent 55%),
    var(--bg);
  color:var(--text);
  font-family:var(--font);
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
}
a{color:inherit;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* Top bar */
header.top{
  position:sticky;top:0;z-index:20;
  background:rgba(10,13,18,.82);
  border-bottom:1px solid var(--line);
}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.28em;font-size:15px;text-decoration:none;color:var(--text);}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 14px var(--accent);}
.back{color:var(--muted);font-size:14px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:8px;}
.back:hover{color:var(--text);}

/* Article */
article.post{padding:56px 0 28px;}
.post-head{max-width:var(--readw);margin:0 auto;}
.kicker{display:inline-flex;align-items:center;gap:10px;color:var(--accent);
  font-size:12px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;margin-bottom:18px;}
.kicker::before{content:"";width:24px;height:1px;background:var(--accent);display:inline-block;}
.post-head h1{font-size:clamp(30px,4.4vw,46px);line-height:1.08;letter-spacing:-.02em;font-weight:800;margin:0 0 20px;}
.deck{font-size:20px;line-height:1.5;color:var(--muted);margin:0 0 26px;}
.byline{display:flex;flex-wrap:wrap;align-items:center;gap:10px;color:var(--faint);font-size:13.5px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;margin-bottom:34px;}
.byline .sep{opacity:.5;}
.byline .tag{color:var(--accent);font-weight:700;letter-spacing:.06em;text-transform:uppercase;font-size:12px;}

.post-cover{max-width:var(--maxw);margin:0 auto 44px;padding:0 24px;}
.post-cover img{width:100%;height:auto;display:block;border-radius:16px;border:1px solid var(--line);}
.post-cover figcaption{color:var(--faint);font-size:12.5px;margin-top:10px;text-align:center;}

.post-body{max-width:var(--readw);margin:0 auto;font-size:18px;line-height:1.78;color:#dfe7f2;}
.post-body > p{margin:0 0 22px;}
.post-body h2{font-size:26px;line-height:1.2;letter-spacing:-.01em;font-weight:750;color:var(--text);margin:44px 0 16px;}
.post-body h3{font-size:20px;font-weight:700;color:var(--text);margin:32px 0 12px;}
.post-body strong{color:#fff;}
.post-body a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;text-decoration-color:rgba(55,208,196,.4);}
.post-body a:hover{text-decoration-color:var(--accent);}
.post-body ul,.post-body ol{margin:0 0 22px;padding-left:22px;}
.post-body li{margin:0 0 10px;}
.post-body blockquote{
  margin:30px 0;padding:6px 0 6px 24px;border-left:3px solid var(--accent);
  font-size:22px;line-height:1.45;font-weight:600;color:#fff;letter-spacing:-.01em;
}
.callout{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:20px 22px;margin:30px 0;font-size:16.5px;color:var(--muted);
}
.callout strong{color:var(--accent);}

.sources{max-width:var(--readw);margin:52px auto 0;border-top:1px solid var(--line);padding-top:26px;}
.sources h2{font-size:14px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin:0 0 16px;}
.sources ul{list-style:none;margin:0;padding:0;}
.sources li{margin:0 0 10px;font-size:14.5px;}
.sources a{color:var(--accent);text-decoration:none;}
.sources a:hover{text-decoration:underline;}

.post-foot{max-width:var(--readw);margin:44px auto 0;}
.post-foot a.more{color:var(--text);font-weight:700;text-decoration:none;display:inline-flex;gap:8px;align-items:center;}

footer.site{border-top:1px solid var(--line);padding:34px 0;margin-top:60px;color:var(--faint);font-size:13px;}
footer.site .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;}

@media (max-width:600px){
  article.post{padding:36px 0 20px;}
  .post-body{font-size:17px;}
  .deck{font-size:18px;}
  .post-body blockquote{font-size:19px;}
}