:root{
  --navy:#0C1826; --navy2:#122236; --navy3:#1A2D45; --navy-line:rgba(255,255,255,.09);
  --paper:#F5F7FA; --white:#FFFFFF; --ink:#0C1826; --ink-2:#5B6878; --mist:#9AA8BA; --line:rgba(12,24,38,.1);
  --lime:#D2F57C; --lime-d:#7FB51C; --lav:#B8A2F8; --lav-d:#7C5FE8; --sky:#8AD5FA; --sky-d:#2F8FCB;
  --f-display:"Plus Jakarta Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --gut:clamp(16px,4vw,40px); --maxw:1240px; --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-display);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--lav-d);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gut)}

/* header */
.bhdr{position:sticky;top:0;z-index:50;background:rgba(12,24,38,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--navy-line)}
.bhdr .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.bhdr .logo img{height:30px;width:auto}
.bhdr nav{display:flex;align-items:center;gap:28px}
.bhdr nav a{color:#C3CDD9;text-decoration:none;font-size:15px;font-weight:500}
.bhdr nav a:hover,.bhdr nav a.on{color:#fff}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--lime);color:var(--navy);font-weight:700;text-decoration:none;border-radius:99px;padding:14px 24px;font-size:16px;transition:transform .3s var(--ease),box-shadow .3s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(127,181,28,.35)}
.btn svg{width:18px;height:18px}
.btn-sm{padding:10px 18px;font-size:14px}
@media (max-width:700px){.bhdr nav a:not(.btn){display:none}}

/* hero of blog index / post */
.bhero{background:var(--navy);color:#fff;padding:clamp(56px,8vw,96px) 0 clamp(48px,6vw,72px);position:relative;overflow:hidden}
.bhero::after{content:"";position:absolute;right:-120px;top:-160px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(184,162,248,.28),transparent 65%);pointer-events:none}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--mist);font-weight:600}
.eyebrow i{width:8px;height:8px;border-radius:2px;background:var(--lime)}
.bhero h1{font-size:clamp(36px,5.4vw,68px);line-height:1.06;letter-spacing:-.035em;font-weight:800;margin:18px 0 0;max-width:20ch;text-wrap:balance}
.bhero h1 .grad{background:linear-gradient(90deg,var(--sky),var(--lav));-webkit-background-clip:text;background-clip:text;color:transparent;padding:.12em 0 .3em;margin:-.12em 0 -.3em;display:inline-block}
.bhero .lead{color:#C3CDD9;font-size:clamp(17px,1.6vw,20px);max-width:60ch;margin:20px 0 0}
.meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:26px;color:var(--mist);font-size:14px}
.meta .tag{background:rgba(210,245,124,.14);color:var(--lime);padding:4px 12px;border-radius:99px;font-weight:600}

/* blog index grid */
.posts{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px;padding:clamp(48px,6vw,80px) 0}
.pc{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);border-radius:24px;padding:28px;text-decoration:none;transition:transform .4s var(--ease),box-shadow .4s}
.pc:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(12,24,38,.1)}
.pc .tag{align-self:flex-start;font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:99px;background:#EEE9FE;color:var(--lav-d)}
.pc h2{font-size:22px;line-height:1.25;letter-spacing:-.02em;margin:18px 0 10px}
.pc p{color:var(--ink-2);font-size:15.5px;margin:0 0 22px;flex:1}
.pc .more{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--ink-2)}
.pc .more b{color:var(--ink)}

/* article */
.art{display:grid;grid-template-columns:minmax(0,720px) 280px;gap:64px;padding:clamp(48px,6vw,80px) 0;justify-content:center}
.prose h2{font-size:clamp(26px,2.6vw,32px);line-height:1.2;letter-spacing:-.025em;margin:56px 0 14px}
.prose h3{font-size:20px;letter-spacing:-.015em;margin:36px 0 10px}
.prose p,.prose li{color:#2B3A4C}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{padding-left:22px;margin:0 0 22px}
.prose li{margin-bottom:8px}
.prose a{color:var(--lav-d);text-decoration:underline;text-underline-offset:3px}
.prose strong{color:var(--ink)}
.prose code{font-family:var(--f-mono);font-size:.88em;background:#E9EDF3;padding:2px 6px;border-radius:6px}
.prose .tip{background:var(--white);border:1px solid var(--line);border-left:4px solid var(--lime-d);border-radius:14px;padding:18px 22px;margin:26px 0}
.prose .tip p:last-child{margin:0}
.prose .check li{list-style:none;position:relative;padding-left:6px}
.prose .check{padding-left:24px}
.prose .check li::before{content:"";position:absolute;left:-22px;top:.45em;width:14px;height:14px;border-radius:4px;background:var(--lime);box-shadow:inset 0 0 0 1px rgba(12,24,38,.15)}
.sources{margin-top:56px;padding-top:28px;border-top:1px solid var(--line);font-size:14.5px}
.sources h2{font-size:16px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);margin:0 0 12px}
.sources li{color:var(--ink-2)}
.side{position:sticky;top:96px;align-self:start}
.cta-card{background:var(--navy);color:#fff;border-radius:24px;padding:28px;overflow:hidden;position:relative}
.cta-card h3{font-size:22px;line-height:1.2;letter-spacing:-.02em;margin:0 0 10px}
.cta-card p{color:#C3CDD9;font-size:15px;margin:0 0 20px}
.toc{margin-top:22px;font-size:14.5px}
.toc b{display:block;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);margin-bottom:10px}
.toc a{display:block;color:var(--ink-2);text-decoration:none;padding:5px 0}
.toc a:hover{color:var(--lav-d)}
@media (max-width:1000px){.art{grid-template-columns:1fr}.side{position:static}.toc{display:none}}

/* bottom CTA band */
.band{background:var(--navy);color:#fff;padding:clamp(56px,7vw,88px) 0}
.band .wrap{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.band h2{font-size:clamp(28px,3.6vw,46px);line-height:1.08;letter-spacing:-.03em;margin:0;max-width:18ch}
.band h2 span{color:var(--lime)}

/* footer */
.bftr{background:#0A1420;color:var(--mist);font-size:14px;padding:32px 0}
.bftr .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.bftr a{color:#C3CDD9;text-decoration:none}
.bhdr nav a.btn{color:var(--navy)}
.prose h2{scroll-margin-top:90px}