:root{
  --bg:#070d1f;
  --bg-soft:#0b1430;
  --surface:#0f1a3a;
  --surface-2:#121f45;
  --border:rgba(148,178,255,0.14);
  --border-strong:rgba(148,178,255,0.28);
  --text:#eef2ff;
  --text-dim:#9aa6d6;
  --text-faint:#6672a3;
  --cyan:#38e0ff;
  --cyan-soft:#8ff0ff;
  --violet:#8b7bff;
  color-scheme: dark;
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.display{
  font-family:"Sora","Manrope",sans-serif;
  font-weight:700;
  letter-spacing:-0.02em;
  text-wrap:balance;
  margin:0;
}
.mono{font-family:"JetBrains Mono",ui-monospace,monospace;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;}
.wrap{max-width:760px;margin:0 auto;padding-inline:24px;}
.wrap-wide{max-width:1180px;margin:0 auto;padding-inline:24px;}

nav{
  position:sticky;top:0;z-index:50;
  background:rgba(7,13,31,0.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  max-width:1180px;margin:0 auto;padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;font-family:"Sora",sans-serif;font-weight:700;font-size:17px;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(56,224,255,0.35);
}
.brand-mark svg{width:18px;height:18px;}
.nav-links{display:flex;align-items:center;gap:28px;font-size:14px;color:var(--text-dim);}
.nav-links a:hover{color:var(--text);}
.nav-cta{display:flex;align-items:center;gap:10px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:9px;font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
}
.btn:active{transform:translateY(1px);}
.btn-ghost{color:var(--text);border-color:var(--border-strong);background:rgba(255,255,255,0.02);}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(56,224,255,0.06);}
.btn-primary{
  color:#04121c;background:linear-gradient(135deg,var(--cyan),var(--cyan-soft));
  box-shadow:0 8px 24px rgba(56,224,255,0.28);
}
.btn-primary:hover{box-shadow:0 10px 30px rgba(56,224,255,0.42);}

footer{border-top:1px solid var(--border);padding:44px 0 34px;margin-top:60px;}
.footer-grid{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;flex-wrap:wrap;max-width:1180px;margin:0 auto;padding-inline:24px;}
.footer-brand p{font-size:13px;color:var(--text-faint);max-width:32ch;margin-top:10px;line-height:1.6;}
.footer-cols{display:flex;gap:56px;flex-wrap:wrap;}
.footer-col h5{font-family:"JetBrains Mono",monospace;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-faint);margin-bottom:14px;font-weight:600;}
.footer-col a{display:block;font-size:13.5px;color:var(--text-dim);margin-bottom:10px;}
.footer-col a:hover{color:var(--text);}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:var(--text-faint);max-width:1180px;margin:24px auto 0;padding-inline:24px;}

/* ---------- blog ---------- */
.blog-header{padding:60px 0 20px;}
.blog-eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:"JetBrains Mono",monospace;font-size:12px;letter-spacing:.06em;color:var(--cyan);text-transform:uppercase;}
.blog-header h1{font-size:clamp(30px,5vw,44px);line-height:1.08;margin:14px 0;}
.blog-header .lead{font-size:17px;line-height:1.6;color:var(--text-dim);max-width:60ch;}

.post-list{display:grid;gap:16px;padding:20px 0 60px;}
.post-card{
  display:block;background:var(--surface);border:1px solid var(--border);border-radius:16px;
  padding:22px 24px;transition:border-color .15s ease, transform .15s ease;
}
.post-card:hover{border-color:var(--border-strong);transform:translateY(-1px);}
.post-card .post-date{font-family:"JetBrains Mono",monospace;font-size:11.5px;color:var(--text-faint);text-transform:uppercase;letter-spacing:.04em;}
.post-card h2{font-size:21px;margin:8px 0 8px;}
.post-card p{font-size:14.5px;line-height:1.6;color:var(--text-dim);margin:0;}

.post-body{padding:10px 0 70px;font-size:16.5px;line-height:1.75;color:var(--text-dim);}
.post-body h2{color:var(--text);font-size:24px;margin:36px 0 14px;}
.post-body h3{color:var(--text);font-size:19px;margin:28px 0 10px;}
.post-body p{margin:0 0 18px;}
.post-body ul,.post-body ol{margin:0 0 18px;padding-left:22px;}
.post-body li{margin-bottom:8px;}
.post-body strong{color:var(--text);}
.post-body a{color:var(--cyan);text-decoration:underline;text-decoration-color:rgba(56,224,255,0.35);}
.post-meta{display:flex;align-items:center;gap:10px;font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--text-faint);text-transform:uppercase;letter-spacing:.04em;margin-bottom:16px;}
.back-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-dim);margin:28px 0 0;}
.back-link:hover{color:var(--text);}
.cta-box{
  margin-top:48px;padding:28px;border-radius:18px;background:var(--surface);border:1px solid var(--border);
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
}
.cta-box h3{font-size:19px;margin-bottom:6px;}
.cta-box p{font-size:14px;color:var(--text-dim);margin:0;}

@media(max-width:640px){
  .nav-links{display:none;}
  .cta-box{flex-direction:column;align-items:flex-start;}
}