/* ---------------------------------------------------------------------------
   The blog — hub and article.

   Stripe register: a lot of air, one accent, restrained rules, and typography
   doing the work instead of boxes and shadows. Everything here is scoped to
   .bwrap / .article so it never fights chrome.css, which owns the header and
   footer on every static page.
   --------------------------------------------------------------------------- */

:root{
  --ink:#0F2745; --ink-soft:#33475F; --ink-mute:#6B7F94;
  --paper:#F7F9FB; --paper-2:#FFFFFF;
  --line:#D8E1EA; --line-soft:#E6ECF2;
  --accent:#235C9E; --accent-deep:#16406F;
  --ok:#1F7A4D; --flag:#8A5A1B; --flag-bg:#FDF6EC;
  --radius:3px;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --wrap:1140px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}

/* ---- Hub ---------------------------------------------------------------- */
.bwrap{max-width:var(--wrap);margin:0 auto;padding:0 24px 40px}

.bhero{padding:72px 0 44px;max-width:47rem}
.bhero__eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--accent);margin:0 0 18px}
.bhero__h1{font-family:var(--serif);font-weight:600;font-size:clamp(34px,5vw,54px);
  line-height:1.1;letter-spacing:-.02em;margin:0 0 20px;color:var(--ink)}
.bhero__sub{font-size:19px;line-height:1.65;color:var(--ink-soft);margin:0;max-width:42rem}

/* Featured — the one post we want read first. */
.bfeat{display:block;background:var(--ink);color:#fff;border-radius:var(--radius);
  padding:40px;margin:0 0 44px;transition:.16s}
.bfeat:hover{text-decoration:none;transform:translateY(-2px);
  box-shadow:0 18px 40px -18px rgba(15,39,69,.5)}
.bfeat__eyebrow{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;color:#7FA8D6;margin:0 0 14px}
.bfeat__title{font-family:var(--serif);font-weight:600;font-size:clamp(26px,3.2vw,34px);
  line-height:1.2;letter-spacing:-.015em;margin:0 0 12px;color:#fff}
.bfeat__sum{font-size:17px;line-height:1.6;color:#B9CCE0;margin:0 0 20px;max-width:46rem}
.bfeat__go{font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;color:#9EC2E8}

/* Filters */
.bfilters{display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  padding:0 0 8px;margin:0 0 8px}
.bsearch{display:flex;align-items:center;gap:9px;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--radius);padding:10px 13px;
  min-width:260px;flex:1 1 260px;color:var(--ink-mute)}
.bsearch:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(35,92,158,.12)}
.bsearch input{border:0;outline:0;background:transparent;flex:1;min-width:0;
  font:inherit;font-size:15px;color:var(--ink)}
.bpills{display:flex;flex-wrap:wrap;gap:7px}
.bpill{font-family:var(--mono);font-size:11.5px;letter-spacing:.02em;
  background:var(--paper-2);border:1px solid var(--line);color:var(--ink-soft);
  border-radius:20px;padding:7px 13px;cursor:pointer;transition:.13s;
  display:inline-flex;align-items:center;gap:7px}
.bpill:hover{border-color:var(--accent);color:var(--accent)}
.bpill span{color:var(--ink-mute);font-size:10.5px}
.bpill.is-on{background:var(--ink);border-color:var(--ink);color:#fff}
.bpill.is-on span{color:#9EC2E8}
.bcount{font-family:var(--mono);font-size:11.5px;color:var(--ink-mute);margin:0 0 22px}
.bempty{font-size:16px;color:var(--ink-mute);padding:40px 0;text-align:center}

/* Sections + cards */
.bsec{padding:34px 0 8px;border-top:1px solid var(--line-soft);margin-top:26px}
.bsec:first-of-type{border-top:0;margin-top:0}
.bsec__head{max-width:44rem;margin:0 0 24px}
.bsec__title{font-family:var(--serif);font-weight:600;font-size:26px;letter-spacing:-.015em;
  margin:0 0 8px;color:var(--ink)}
.bsec__blurb{font-size:16px;line-height:1.6;color:var(--ink-soft);margin:0}

.bgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.bcard{display:flex;flex-direction:column;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--radius);padding:24px 24px 20px;
  transition:.15s;min-width:0}
.bcard:hover{text-decoration:none;border-color:#B7C6D6;transform:translateY(-2px);
  box-shadow:0 14px 30px -18px rgba(15,39,69,.35)}
.bcard__meta{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-mute);margin:0 0 12px;
  display:flex;align-items:center;gap:9px}
.bcard__badge{color:var(--flag);background:var(--flag-bg);border:1px solid #E4CBAE;
  border-radius:2px;padding:1px 6px;letter-spacing:.06em}
.bcard__title{font-family:var(--serif);font-weight:600;font-size:20px;line-height:1.3;
  letter-spacing:-.01em;margin:0 0 10px;color:var(--ink)}
.bcard__sum{font-size:15px;line-height:1.6;color:var(--ink-soft);margin:0 0 18px}
.bcard__go{margin-top:auto;font-family:var(--mono);font-size:11.5px;color:var(--accent)}

/* Closing CTA */
.bend{display:flex;flex-wrap:wrap;gap:30px;align-items:center;justify-content:space-between;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:36px;margin:56px 0 0}
.bend__copy{flex:1 1 380px;min-width:0}
.bend h2{font-family:var(--serif);font-weight:600;font-size:24px;letter-spacing:-.015em;
  margin:0 0 10px;color:var(--ink)}
.bend p{font-size:16px;line-height:1.65;color:var(--ink-soft);margin:0;max-width:46rem}
.bend__actions{display:flex;gap:10px;flex-wrap:wrap}
.bbtn{display:inline-flex;align-items:center;justify-content:center;font-weight:500;
  font-size:15px;line-height:1;white-space:nowrap;background:var(--ink);color:#fff;
  border:1px solid var(--ink);border-radius:var(--radius);padding:13px 20px;transition:.15s}
.bbtn:hover{background:var(--accent-deep);border-color:var(--accent-deep);text-decoration:none;color:#fff}
.bbtn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.bbtn--ghost:hover{background:var(--paper);border-color:var(--accent);color:var(--accent)}

/* ---- Article ------------------------------------------------------------ */
.article{max-width:var(--wrap);margin:0 auto;padding:0 24px 60px}

/* Contents rail. Above 1080px the article becomes a two-column grid and the
   rail sits in what was dead space to the right of the measure; below that it
   collapses to a plain list above the article, which is the right shape on a
   phone anyway. */
@media(min-width:1080px){
  .article{display:grid;grid-template-columns:minmax(0,1fr) 15rem;
    column-gap:48px;align-items:start}
  .article__back,.article__head{grid-column:1}
  .article__content{grid-column:1}
  .toc{grid-column:2;grid-row:2 / span 2;position:sticky;top:96px;
    max-height:calc(100vh - 130px);overflow-y:auto;padding:22px 0 0;
    border-left:1px solid var(--line-soft);padding-left:22px}
}
.toc{margin:0 auto;max-width:44rem}
.toc__k{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-mute);margin:0 0 12px}
.toc__list{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc__list li{margin:0 0 9px;line-height:1.45}
.toc__list a{font-size:13.5px;color:var(--ink-soft);text-decoration:none;
  display:block;transition:color .13s}
.toc__list a:hover{color:var(--accent);text-decoration:none}
.toc__list a.is-here{color:var(--accent);font-weight:500}
@media(max-width:1079px){
  .toc{background:var(--paper-2);border:1px solid var(--line);
    border-radius:var(--radius);padding:20px 22px;margin:28px auto 0}
  .toc__list{columns:2;column-gap:26px}
}
@media(max-width:560px){.toc__list{columns:1}}
/* Anchored headings must clear the sticky site header when jumped to. */
.article__content h2{scroll-margin-top:88px}

/* Tables and the in-article CTA sit slightly wider than the prose measure,
   which keeps the reading line short without cramping a six-column table. */
.article__content .article__tablewrap,
.article__content .cta-box{max-width:44rem;margin-left:-2rem;margin-right:-2rem}
@media(max-width:820px){.article__content .article__tablewrap,
.article__content .cta-box{max-width:none;margin-left:0;margin-right:0}}
.article__back{display:block;max-width:44rem;margin:0 auto;font-family:var(--mono);font-size:11.5px;
  letter-spacing:.06em;color:var(--ink-mute);padding:34px 0 0}
.article__head{max-width:44rem;margin:0 auto;padding:22px 0 34px;border-bottom:1px solid var(--line-soft)}
.article__cat{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);margin:0 0 16px}
.article__h1{font-family:var(--serif);font-weight:600;font-size:clamp(30px,4.4vw,46px);
  line-height:1.12;letter-spacing:-.02em;margin:0 0 18px;color:var(--ink)}
.article__lede{font-size:20px;line-height:1.6;color:var(--ink-soft);margin:0 0 22px}
.article__meta{font-family:var(--mono);font-size:11.5px;letter-spacing:.04em;
  color:var(--ink-mute);margin:0;display:flex;gap:16px;flex-wrap:wrap}

.article__content{max-width:40rem;margin:0 auto;padding:38px 0 0;font-size:18px;line-height:1.75}
.article__content h2{font-family:var(--serif);font-weight:600;font-size:28px;
  line-height:1.25;letter-spacing:-.015em;margin:44px 0 14px;color:var(--ink)}
.article__content h3{font-family:var(--sans);font-weight:600;font-size:19px;
  margin:32px 0 10px;color:var(--ink)}
.article__content p{margin:0 0 20px;color:var(--ink-soft)}
.article__content strong{color:var(--ink);font-weight:600}
.article__content ul,.article__content ol{margin:0 0 22px;padding-left:22px;color:var(--ink-soft)}
.article__content li{margin:0 0 9px}
.article__content blockquote{margin:26px 0;padding:2px 0 2px 20px;
  border-left:2px solid var(--accent);color:var(--ink);font-size:19px;line-height:1.6}
.article__content table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:15.5px}
.article__content th,.article__content td{text-align:left;padding:11px 12px;
  border-bottom:1px solid var(--line-soft);color:var(--ink-soft);vertical-align:top}
.article__content th{font-family:var(--mono);font-size:11px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-mute);border-bottom-color:var(--line)}
.article__content code{font-family:var(--mono);font-size:.88em;background:var(--paper-2);
  border:1px solid var(--line-soft);border-radius:2px;padding:1px 5px;color:var(--ink)}
/* Wide content scrolls inside itself; the page never scrolls sideways. */
.article__tablewrap{overflow-x:auto;margin:0 0 24px}

.keytake{background:var(--paper-2);border:1px solid var(--line);border-left:2px solid var(--accent);
  border-radius:var(--radius);padding:22px 24px;margin:0 0 30px}
.keytake p{margin:0;font-size:17px;line-height:1.6;color:var(--ink)}
.keytake__k{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-mute);margin:0 0 10px !important}

/* In-article CTA — injected by the pipeline, styled here. */
.cta-box{background:var(--ink);border-radius:var(--radius);padding:30px;margin:40px 0 0}
.cta-box__eyebrow{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;color:#7FA8D6;margin:0 0 12px}
.cta-box h3{font-family:var(--serif);font-weight:600;font-size:23px;line-height:1.25;
  margin:0 0 10px;color:#fff}
.cta-box p{font-size:16px;line-height:1.6;color:#B9CCE0;margin:0 0 20px}
.cta-box__actions{display:flex;gap:10px;flex-wrap:wrap}
.cta-box__button{display:inline-flex;align-items:center;background:#fff;color:var(--ink);
  border-radius:var(--radius);padding:12px 18px;font-weight:500;font-size:15px}
.cta-box__button:hover{text-decoration:none;background:#E8F0F8}
.cta-box__alt{display:inline-flex;align-items:center;color:#9EC2E8;padding:12px 4px;font-size:15px}

.related{max-width:40rem;margin:44px auto 0;padding:26px 0 0;border-top:1px solid var(--line-soft)}
.related__title{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-mute);margin:0 0 14px}
.related__list{list-style:none;margin:0;padding:0}
.related__list li{margin:0 0 10px;font-size:16px;color:var(--ink-soft);line-height:1.6}

@media(max-width:720px){
  body{font-size:16px}
  .bwrap,.article{padding-left:16px;padding-right:16px}
  .bhero{padding:44px 0 30px}
  .bfeat{padding:28px}
  .bend{padding:26px}
  .bend__actions{width:100%}
  .bend__actions .bbtn{flex:1 1 auto;justify-content:center}
  .bgrid{grid-template-columns:1fr}
  .article__content{font-size:17px}
  .article__content h2{font-size:24px}
}

.bcard__ver{color:var(--ok);letter-spacing:.04em}