:root{--bg:#070b1a;--bg-2:#0b1226;--card:rgba(255,255,255,.04);--card-2:rgba(255,255,255,.07);--line:rgba(255,255,255,.09);--line-2:rgba(255,255,255,.16);--text:#e6ebf5;--muted:#95a1b8;--dim:#6b7791;--cyan:#22d3ee;--grad:linear-gradient(120deg,#60a5fa 0%,#22d3ee 45%,#34d399 100%)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:17px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4{font-family:"Space Grotesk",Inter,sans-serif;line-height:1.15;letter-spacing:-.02em;color:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.bg-fx{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.bg-fx .grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 0%,#000 25%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 25%,transparent 70%)}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.35}
.b1{width:480px;height:480px;background:#1d4ed8;top:-180px;left:-140px}
.b2{width:420px;height:420px;background:#059669;top:60px;right:-180px}
header{position:fixed;top:14px;left:0;right:0;z-index:100}
.nav{max-width:1180px;margin:0 auto;padding:0 24px}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:62px;padding:0 10px 0 18px;border:1px solid var(--line-2);border-radius:999px;background:rgba(10,15,32,.8);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.logo{display:flex;align-items:center;gap:10px;font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:18px;color:#fff}
.logo i{width:32px;height:32px;border-radius:10px;background:var(--grad);display:grid;place-items:center}
.logo svg{width:18px;height:18px}
.links{display:flex;gap:6px;list-style:none}
.links a{padding:8px 14px;border-radius:999px;color:var(--muted);font-size:14.5px;font-weight:500}
.links a:hover,.links a.on{color:#fff;background:var(--card-2)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:999px;font-weight:600;font-size:15px;border:1px solid transparent;transition:transform .2s,box-shadow .2s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn-main{background:var(--grad);color:#04111f;box-shadow:0 8px 30px -8px rgba(34,211,238,.55)}
.btn-line{border-color:var(--line-2);color:#fff;background:rgba(255,255,255,.03)}
.nav .btn{padding:10px 18px;font-size:14px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:16px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px}
/* blog index */
.bhero{padding:170px 0 50px;text-align:center}
.bhero h1{font-size:clamp(40px,6vw,68px);margin-bottom:18px}
.bhero p{color:var(--muted);font-size:19px;max-width:620px;margin:0 auto}
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:30px 0 100px}
.pc{display:flex;flex-direction:column;border-radius:22px;background:var(--card);border:1px solid var(--line);overflow:hidden;transition:transform .3s,border-color .3s,background .3s}
.pc:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.35);background:var(--card-2)}
.pc .art{height:150px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.pc .art svg{position:absolute;inset:0;width:100%;height:100%}
.pc .body{padding:24px;display:flex;flex-direction:column;flex:1}
.cat{display:inline-block;align-self:flex-start;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:5px 11px;border-radius:999px;border:1px solid var(--line-2);color:#bae6fd;margin-bottom:14px}
.pc h2,.pc h3{font-size:21px;margin-bottom:10px}
.pc p{color:var(--muted);font-size:15px;margin-bottom:18px;flex:1}
.pc .meta{font-size:13px;color:var(--dim);display:flex;justify-content:space-between}
.pc .meta b{color:var(--cyan);font-weight:600}
.pc.feat{grid-column:span 3;flex-direction:row}
.pc.feat .art{height:auto;width:46%;border-bottom:0;border-right:1px solid var(--line)}
.pc.feat .body{padding:40px}
.pc.feat h2{font-size:32px}
/* article */
.ahero{padding:160px 0 40px}
.crumbs{font-size:14px;color:var(--dim);margin-bottom:22px}
.crumbs a:hover{color:#fff}
.ahero h1{font-size:clamp(34px,5vw,56px);max-width:900px;margin-bottom:22px}
.ahero .sub{color:var(--muted);font-size:19px;max-width:760px;margin-bottom:28px}
.byline{display:flex;align-items:center;gap:14px;font-size:14.5px;color:var(--muted)}
.byline img{width:46px;height:46px;border-radius:14px;object-fit:cover;border:2px solid rgba(34,211,238,.5)}
.byline b{color:#fff;display:block;font-size:15px}
.alayout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;margin-top:30px;margin-bottom:90px;align-items:start}
.prose{max-width:740px}
.prose>*+*{margin-top:1.15em}
.prose h2{font-size:30px;margin-top:2em}
.prose h3{font-size:22px;margin-top:1.6em}
.prose p,.prose li{color:#cfd6e6}
.prose strong{color:#fff}
.prose a{color:#67e8f9;text-decoration:underline;text-decoration-color:rgba(103,232,249,.4);text-underline-offset:3px}
.prose a:hover{text-decoration-color:#67e8f9}
.prose ul,.prose ol{padding-left:1.3em}
.prose li+li{margin-top:.45em}
.prose li::marker{color:var(--cyan)}
.prose ul.todo{list-style:none;padding-left:0}
.prose li.todo{position:relative;padding-left:32px;list-style:none}
.prose li.todo::before{content:"";position:absolute;left:0;top:5px;width:20px;height:20px;border-radius:6px;border:2px solid rgba(34,211,238,.55);background:rgba(34,211,238,.06)}
.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em;background:rgba(255,255,255,.07);border:1px solid var(--line);padding:2px 6px;border-radius:6px;color:#e2e8f0}
.prose pre{background:#050914;border:1px solid var(--line-2);border-radius:16px;padding:22px;overflow-x:auto;font-size:14px;line-height:1.6}
.prose pre code{background:none;border:0;padding:0;color:#a5f3fc}
.aside{position:sticky;top:100px;display:grid;gap:16px}
.abox{padding:24px;border-radius:20px;background:var(--card);border:1px solid var(--line)}
.abox h4{font-size:17px;margin-bottom:10px}
.abox p{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.abox .btn{width:100%}
.abox.cta{background:radial-gradient(300px 200px at 50% 0%,rgba(59,130,246,.3),transparent 70%),var(--bg-2);border-color:var(--line-2)}
.toc{list-style:none;display:grid;gap:8px;font-size:14px}
.toc a{color:var(--muted)}
.toc a:hover{color:#fff}
.endcta{margin-top:56px;padding:36px;border-radius:24px;border:1px solid var(--line-2);background:radial-gradient(500px 240px at 0% 0%,rgba(59,130,246,.25),transparent 70%),radial-gradient(400px 240px at 100% 100%,rgba(16,185,129,.2),transparent 70%),var(--bg-2)}
.endcta h3{font-size:26px;margin-bottom:10px}
.endcta p{color:var(--muted);margin-bottom:22px}
.endcta .row{display:flex;gap:12px;flex-wrap:wrap}
.related{padding:20px 0 90px}
.related h2{font-size:32px;margin-bottom:24px}
.related .posts{padding:0}
footer{padding:40px 0 60px;text-align:center;color:var(--dim);font-size:14px;border-top:1px solid var(--line)}
footer a{color:var(--muted)}
.progress{position:fixed;top:0;left:0;height:3px;background:var(--grad);width:0;z-index:200}
@media (max-width:980px){
  .links{display:none}
  .posts{grid-template-columns:1fr 1fr}
  .pc.feat{grid-column:span 2;flex-direction:column}
  .pc.feat .art{width:100%;height:170px;border-right:0;border-bottom:1px solid var(--line)}
  .pc.feat .body{padding:26px}
  .alayout{grid-template-columns:minmax(0,1fr)}
  .aside{position:static}
}
@media (max-width:600px){
  .wrap,.nav{padding:0 16px}
  .nav .btn{display:none}
  .posts{grid-template-columns:1fr}
  .pc.feat{grid-column:span 1}
  .pc.feat h2{font-size:24px}
  .bhero{padding:140px 0 30px}
  .ahero{padding:130px 0 30px}
  .prose h2{font-size:25px}
  .endcta{padding:26px}
}