/* Prometheus blog — light/white theme (Poppins, cyan/orange accents) */
:root{
  --bg:#ffffff; --panel:#f6f8fb; --panel2:#ffffff; --line:#e5eaf1;
  --txt:#161a22; --head:#0f1420; --mut:#566072; --faint:#8a94a3;
  --cyan:#0ea5a5; --cyan-dark:#0b8686; --orange:#ea6a0c; --orange-dark:#c85a08; --ok:#12a05c;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--txt);
  font-family:'Poppins',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
  line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--cyan-dark);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:100%;max-width:800px;margin:0 auto;padding:0 20px}
img{max-width:100%;height:auto}

/* nav */
.bnav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bnav__in{max-width:1100px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.bnav__logo{display:inline-flex;align-items:center;gap:9px;color:var(--head);font-weight:800;font-size:17px}
.bnav__logo img{height:28px}
.bnav__logo b{color:var(--cyan-dark)}
.bnav__links{display:flex;align-items:center;gap:18px}
.bnav__links a{color:var(--mut);font-weight:600;font-size:14px}
.bnav__links a:hover{color:var(--cyan-dark);text-decoration:none}
.bnav__cta{background:linear-gradient(90deg,var(--orange),var(--orange-dark));color:#fff !important;
  padding:9px 16px;border-radius:100px;font-weight:700;font-size:13.5px}
.bnav__cta:hover{filter:brightness(1.05);text-decoration:none}
@media(max-width:640px){.bnav__links a:not(.bnav__cta){display:none}}

/* hero */
.bhero{border-bottom:1px solid var(--line);background:linear-gradient(180deg,#f9fbfe,#fff)}
.bhero__in{max-width:800px;margin:0 auto;padding:40px 20px 26px}
.btag{display:inline-block;background:rgba(234,106,12,.1);color:var(--orange-dark);border:1px solid rgba(234,106,12,.3);
  font-size:11.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;padding:5px 12px;border-radius:100px;margin-bottom:16px}
.bhero h1{font-size:clamp(27px,4.4vw,40px);line-height:1.15;margin:0 0 14px;color:var(--head);letter-spacing:-.01em}
.bmeta{color:var(--faint);font-size:13.5px;display:flex;gap:16px;flex-wrap:wrap}
.bbyline{color:var(--mut);font-size:13px;margin-top:6px}
.bhero__img{max-width:800px;margin:22px auto 0;padding:0 20px}
.bhero__img svg{width:100%;height:auto;display:block;border-radius:16px;border:1px solid var(--line);box-shadow:0 20px 44px -28px rgba(15,20,32,.35)}

/* body */
.bbody{padding:32px 0 20px;font-size:16.5px}
.bbody h2{font-size:24px;color:var(--head);margin:36px 0 12px;letter-spacing:-.01em;scroll-margin-top:70px}
.bbody h3{font-size:19px;color:var(--head);margin:26px 0 8px}
.bbody p{margin:0 0 16px;color:#333b47}
.bbody strong{color:var(--head)}
.bbody ul,.bbody ol{margin:0 0 18px;padding-left:22px;color:#333b47}
.bbody li{margin-bottom:8px}
.bbody a{border-bottom:1px solid rgba(14,165,165,.35)}
.bbody blockquote{margin:22px 0;padding:14px 20px;border-left:3px solid var(--orange);
  background:rgba(234,106,12,.06);border-radius:0 10px 10px 0;color:var(--head);font-style:italic}
.lead{font-size:18px;color:#2a323d !important;font-weight:500}
.toc{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin:8px 0 26px}
.toc strong{display:block;color:var(--cyan-dark);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.toc ul{list-style:none;margin:0;padding:0;columns:2;font-size:14.5px}
.toc li{margin-bottom:6px}
.toc a{border:none}
@media(max-width:560px){.toc ul{columns:1}}
.keytake{background:linear-gradient(180deg,rgba(14,165,165,.08),transparent);border:1px solid var(--line);
  border-left:3px solid var(--cyan);border-radius:0 12px 12px 0;padding:14px 20px;margin:0 0 26px;color:#2a323d}
.keytake b{color:var(--cyan-dark)}
table{width:100%;border-collapse:collapse;font-size:14.5px;margin:18px 0}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--cyan-dark);font-weight:700}
td{color:#333b47}

/* CTA */
.bcta{background:linear-gradient(135deg,#0f1420,#12303a);border:1px solid #12303a;
  border-radius:16px;padding:26px 24px;margin:32px 0;text-align:center}
.bcta h3{margin:0 0 8px;font-size:21px;color:#fff}
.bcta p{margin:0 0 16px;color:#b9c6d3;font-size:15px}
.bcta a{display:inline-block;background:linear-gradient(90deg,var(--orange),var(--orange-dark));color:#fff;
  padding:13px 26px;border-radius:100px;font-weight:700;font-size:15px}
.bcta a:hover{filter:brightness(1.06);text-decoration:none}

/* FAQ */
.bfaq{margin:14px 0 0}
.bfaq details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:0 18px;margin-bottom:10px}
.bfaq summary{cursor:pointer;list-style:none;padding:15px 0;font-weight:700;color:var(--head);font-size:16px;
  display:flex;justify-content:space-between;align-items:center;gap:12px}
.bfaq summary::-webkit-details-marker{display:none}
.bfaq summary::after{content:"+";color:var(--orange);font-weight:800;font-size:22px;line-height:1}
.bfaq details[open] summary::after{content:"\2013"}
.bfaq .a{padding:0 0 16px;color:#333b47;font-size:15px}

/* related */
.brel{border-top:1px solid var(--line);margin-top:40px;padding:30px 0}
.brel h3{color:var(--head);font-size:18px;margin:0 0 16px}
.brel__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.brel__card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;transition:.15s}
.brel__card:hover{border-color:var(--cyan);transform:translateY(-2px);text-decoration:none;box-shadow:0 12px 26px -18px rgba(15,20,32,.3)}
.brel__card span{display:block;color:var(--orange-dark);font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;margin-bottom:7px}
.brel__card b{color:var(--head);font-size:15px;line-height:1.35;font-weight:700}
@media(max-width:640px){.brel__grid{grid-template-columns:1fr}}

.bdisc{color:var(--faint);font-size:12.5px;border-top:1px solid var(--line);padding:18px 0 0;margin-top:14px;line-height:1.6}

/* footer */
.bfooter{background:#0f1420;border-top:1px solid var(--line);padding:40px 0;text-align:center;font-size:13px;color:#9aa6b4}
.bfooter__in{max-width:1100px;margin:0 auto;padding:0 20px;display:grid;gap:14px;justify-items:center}
.bfooter a{color:#cbd5e1}
.bfooter .bnav__logo{color:#fff}
.bfooter__nav{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 18px}
.bfooter__copy{opacity:.7}

/* blog index */
.bindex{padding:34px 0 60px}
.bindex__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.pcard{display:block;background:var(--panel2);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.16s}
.pcard:hover{border-color:var(--cyan);transform:translateY(-3px);text-decoration:none;box-shadow:0 20px 40px -26px rgba(15,20,32,.35)}
.pcard__img svg{width:100%;height:auto;display:block;border-bottom:1px solid var(--line)}
.pcard__b{padding:20px 22px}
.pcard span.t{display:inline-block;color:var(--orange-dark);font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}
.pcard h2{color:var(--head);font-size:19px;line-height:1.3;margin:0 0 8px}
.pcard p{color:var(--mut);font-size:14px;margin:0 0 12px}
.pcard .m{color:var(--faint);font-size:12.5px}
@media(max-width:640px){.bindex__grid{grid-template-columns:1fr}}