*{box-sizing:border-box}
:root{
  --bg:#0b0e12; --bg2:#0e1218; --surface:#141a21; --surface2:#1a222b;
  --border:#232d38; --text:#e8eef3; --muted:#93a0ad; --faint:#6b7885;
  --cyan:#22d3ee; --teal:#2dd4bf; --accentGrad:linear-gradient(135deg,#22d3ee,#2dd4bf);
  --radius:16px;
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 22px}
h1,h2,h3{line-height:1.2;margin:0 0 .4em}
h1{font-size:clamp(28px,4.6vw,44px);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(22px,3vw,30px);font-weight:700;margin-top:1.4em}
p{margin:0 0 1em}
.muted{color:var(--muted)}
.glows{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5}
.g1{width:520px;height:520px;background:#0e7490;top:-160px;left:-120px}
.g2{width:460px;height:460px;background:#0f766e;bottom:-160px;right:-120px;opacity:.4}
.grid-bg{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(34,211,238,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(34,211,238,.045) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(ellipse 80% 60% at 50% 20%,#000,transparent 75%)}
header{position:sticky;top:0;z-index:40;backdrop-filter:blur(10px);background:rgba(11,14,18,.72);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em}
.brand svg{width:30px;height:30px}
.nav-links{display:flex;gap:26px}
.nav-links a{color:var(--muted);font-size:15px;font-weight:500}
.nav-links a:hover{color:var(--text)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:12px;font-weight:700;font-size:15px;cursor:pointer;border:1px solid transparent;transition:transform .15s,box-shadow .15s;white-space:nowrap}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--accentGrad);color:#04121a;box-shadow:0 10px 30px -10px rgba(34,211,238,.5)}
.btn-primary:hover{box-shadow:0 16px 40px -10px rgba(34,211,238,.7);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--cyan)}
.btn-sm{padding:9px 16px;font-size:14px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.12em;margin-bottom:14px}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal)}

/* blog index */
.blog-head{text-align:center;padding:56px 0 10px}
.blog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;padding:32px 0 70px}
.post{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:transform .15s,border-color .15s}
.post:hover{transform:translateY(-3px);border-color:var(--cyan)}
.post h3{font-size:19px;margin-bottom:.35em}
.post p{color:var(--muted);font-size:14.5px;margin:0}
.post .tag{display:inline-block;font-size:12px;color:var(--cyan);margin-bottom:10px;font-weight:600}

/* article */
.article{max-width:760px;margin:0 auto;padding:36px 0 60px}
.breadcrumbs{font-size:13px;color:var(--faint);margin-bottom:18px}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--cyan)}
.article .meta{color:var(--faint);font-size:13px;margin-bottom:26px}
.prose{font-size:16.5px;color:#d7dee5}
.prose h2{color:var(--text)}
.prose ul{padding-left:22px;margin:0 0 1em}
.prose li{margin-bottom:.4em}
.prose strong{color:var(--text)}
.callout{display:flex;gap:14px;background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--cyan);border-radius:12px;padding:16px 18px;margin:22px 0}
.callout svg{width:22px;height:22px;flex:none;stroke:var(--cyan);fill:none;stroke-width:1.8;margin-top:2px}
.callout p{margin:0;font-size:14.5px;color:var(--muted)}
.article-cta{text-align:center;background:linear-gradient(135deg,rgba(34,211,238,.10),rgba(45,212,191,.06));border:1px solid var(--border);border-radius:18px;padding:34px 24px;margin:36px 0}
.article-cta h3{margin-bottom:.3em}
.article-cta p{color:var(--muted);margin:0 auto 20px;max-width:460px}
.related{margin-top:40px;border-top:1px solid var(--border);padding-top:26px}
.related h3{font-size:17px;margin-bottom:14px}
.related-list{display:grid;gap:10px}
.related-list a{color:var(--muted);font-size:15px}
.related-list a:hover{color:var(--cyan)}
footer{border-top:1px solid var(--border);padding:40px 0;margin-top:20px}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot .legal{color:var(--faint);font-size:12.5px;max-width:720px;margin-top:18px}
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:50;display:none;padding:10px 14px;background:rgba(11,14,18,.94);backdrop-filter:blur(8px);border-top:1px solid var(--border)}
.mobile-cta .btn{width:100%}
@media(max-width:820px){.blog-grid{grid-template-columns:1fr}.nav-links{display:none}}
@media(max-width:640px){.mobile-cta{display:block}body{padding-bottom:74px}}