/* The blog (blog-build.mjs). Built on the brochure's own tokens and
   components (its inline <style>: --bg, --surface, --line, --text, --muted,
   --faint, --violet-*, .btn, .mchip, .shot, .posts and .post), which every
   blog page carries, so it reads as the same site. Like the brochure and the
   help centre, it is dark whatever the visitor's system preference. */

/* The brochure's --faint (#6f6e7b) is 3.1 to 3.7:1 on these backgrounds, under
   WCAG AA's 4.5:1 for small text, and the blog sets dates, bylines, counts and
   labels in it. This shade is at least 4.7:1 on every surface the blog uses
   (#111216 page, #15161b box, #1c1d23 card, #212032 chip, #24232f raised). */
.bl-page{--faint:#8e8d9b}

.bl{padding-bottom:88px}
.bl section{padding:0}
.bl a{color:inherit}
.bl-wrap{padding-top:30px}

/* ── breadcrumbs ──────────────────────────────────────────────────────── */
.bl-crumbs ol{list-style:none;margin:0 0 26px;padding:0;display:flex;flex-wrap:wrap;gap:4px 0;font-size:14px;color:var(--faint)}
.bl-crumbs li{min-width:0}
.bl-crumbs li:last-child{flex:1 1 0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.bl-crumbs li+li::before{content:"›";margin:0 9px;color:var(--faint)}
.bl-crumbs a{color:var(--muted);text-decoration:none}
.bl-crumbs a:hover{color:var(--text);text-decoration:underline}
.bl-crumbs [aria-current]{color:var(--text)}

/* ── a post: the article, with "On this page" beside it on wide screens ─ */
.bl-layout{display:grid;grid-template-columns:minmax(0,720px) 232px;justify-content:space-between;gap:56px;align-items:start}
.bl-layout.no-rail{grid-template-columns:minmax(0,720px)}
.bl-article{min-width:0}
.bl-head h1{font-size:clamp(34px,4.3vw,52px);line-height:1.06;margin:16px 0 18px}
.bl-tag{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:500;color:var(--violet-ink);text-decoration:none;
  background:var(--violet-wash);border-radius:999px;padding:5px 12px 5px 10px}
.bl-tag .i{width:15px;height:15px}
.bl-tag:hover{background:color-mix(in srgb,var(--violet) 22%,transparent)}
.bl-lede{font-size:clamp(18px,1.5vw,20px);color:var(--muted);line-height:1.55;margin:0 0 16px;max-width:62ch}
.bl-lede a{color:var(--violet-ink)}
.bl-byline{display:flex;flex-wrap:wrap;gap:4px 0;margin:0;font-size:14px;color:var(--faint)}
.bl-byline span+span::before{content:"·";margin:0 9px}
.bl-byline span:first-child{color:var(--muted)}

/* "Part of": the topic and its pillar page */
.bl-pillar{display:flex;gap:14px;align-items:center;margin:28px 0 36px;padding:14px 18px;border:1px solid var(--line);border-radius:14px;background:var(--bg-2)}
.bl-pillar p{margin:0;line-height:1.4}
.bl-pillar-k{font-size:13.5px;color:var(--faint)}
.bl-pillar-k a{color:var(--muted);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px}
.bl-pillar-k a:hover{color:var(--text)}
.bl-pillar-l{font-size:16px;font-weight:500;margin-top:3px!important}
.bl-pillar-l a{color:var(--text);text-decoration:none}
.bl-pillar-l a:hover{color:var(--violet-ink)}

/* the post's own text */
.bl-body>:first-child{margin-top:0}
.bl-body h2{font-size:clamp(25px,2.4vw,31px);line-height:1.15;margin:52px 0 14px;scroll-margin-top:96px}
.bl-body h3{font-size:21px;margin:34px 0 10px;scroll-margin-top:96px}
.bl-body h4{font-size:18px;margin:26px 0 8px}
.bl-body p,.bl-body li{font-size:18px;line-height:1.72;color:var(--muted)}
.bl-body p{margin:0 0 18px}
.bl-body strong{color:var(--text);font-weight:600}
.bl-body em{color:var(--text)}
.bl-body a{color:var(--violet-ink);text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--violet-ink) 45%,transparent);text-underline-offset:3px}
.bl-body a:hover{text-decoration-color:currentColor}
.bl-body ul,.bl-body ol{padding-left:1.3em;margin:6px 0 20px}
.bl-body li{margin:8px 0}
.bl-body li::marker{color:var(--faint)}
.bl-body ol>li::marker{color:var(--violet-ink);font-weight:600}
.bl-body li>p{margin:0 0 8px}
.bl-body blockquote{margin:30px 0;padding:6px 0 6px 22px;border-left:3px solid var(--violet-hi)}
.bl-body blockquote p{font:500 21px/1.45 var(--f-display);color:var(--text);letter-spacing:-.01em;margin:0 0 10px}
.bl-body blockquote p:last-child{margin-bottom:0}
.bl-body hr{border:0;border-top:1px solid var(--line-soft);margin:40px 0}
.bl-body code{font-size:.88em;background:var(--raised);padding:1px 6px;border-radius:5px;color:var(--text)}
.bl-body pre{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:14px 16px;overflow:auto}
.bl-body pre code{background:none;padding:0}
.bl-table{overflow-x:auto;margin:22px 0 26px;border:1px solid var(--line);border-radius:12px}
.bl-table table{border-collapse:collapse;width:100%;font-size:15.5px}
.bl-table th,.bl-table td{padding:11px 14px;border-bottom:1px solid var(--line-soft);text-align:left;vertical-align:top;color:var(--muted);line-height:1.5}
.bl-table th{background:var(--raised);color:var(--text);font-weight:600}
.bl-table tr:last-child td{border-bottom:0}
.bl-shot{margin:32px 0 34px}

/* "On this page" */
.bl-rail{position:sticky;top:calc(92px + env(safe-area-inset-top,0px));max-height:calc(100vh - 120px);overflow:auto;padding-top:6px}
.bl-toc-h{font-weight:600;font-size:12.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--faint);margin:0 0 10px}
.bl-toc ol{list-style:none;margin:0;padding:0;border-left:1px solid var(--line-soft)}
.bl-toc a{display:block;padding:6px 0 6px 14px;margin-left:-1px;border-left:2px solid transparent;color:var(--muted);text-decoration:none;font-size:14px;line-height:1.4}
.bl-toc a:hover{color:var(--text)}
.bl-toc a[aria-current]{color:var(--text);border-left-color:var(--violet-hi)}

/* ── the call to action, in the text (inline) and at the end ──────────── */
/* Every rule is scoped to .bl-cta so the inline one, which sits inside the
   post's text, does not pick up the text's paragraph and link styles. */
.bl-cta{margin:40px 0;padding:22px 24px 20px;border-radius:18px;border:1px solid color-mix(in srgb,var(--violet-hi) 42%,var(--line));
  background:radial-gradient(120% 140% at 100% 0%,color-mix(in srgb,var(--violet) 16%,transparent),transparent 60%),var(--surface);
  box-shadow:0 18px 50px -30px rgba(124,102,232,.55)}
.bl-cta .bl-cta-h{font:600 clamp(24px,2.3vw,30px)/1.12 var(--f-display);letter-spacing:-.025em;color:var(--text);margin:0 0 18px}
.bl-cta .bl-cta-grid{display:grid;grid-template-columns:max-content minmax(0,1fr);grid-template-areas:"k ." "dl trial" "v note";gap:10px 22px;align-items:center}
.bl-cta .bl-cta-k{grid-area:k;margin:0;font:600 17px/1.3 var(--f-display);letter-spacing:-.01em;color:var(--text)}
.bl-cta .bl-dl{grid-area:dl;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.bl-cta .btn{text-decoration:none;color:var(--text);min-width:0;padding:0 18px}
.bl-cta .btn.pri{color:#fff}
.bl-cta .bl-trial{grid-area:trial;justify-self:start}
.bl-cta .bl-cta-v{grid-area:v;margin:0;font-size:12.5px;line-height:1.4;color:var(--faint)}
.bl-cta .bl-cta-note{grid-area:note;margin:0;font-size:13.5px;line-height:1.45;color:var(--muted)}
.bl-cta-inline .bl-cta-grid{grid-template-areas:"k ." "dl trial" ". note"}
.bl-cta-inline .bl-cta-v{display:none}
.bl-cta-end{margin-top:56px;padding:28px 28px 24px}
.bl-cta-end .bl-cta-k{font-size:15px}
/* /blog and the topic pages: the heading beside the actions, the width of the page */
.bl-cta-wide{display:grid;grid-template-columns:minmax(0,1fr) max-content;gap:24px 48px;align-items:center;padding:34px 36px 30px;margin-top:72px}
.bl-cta-wide .bl-cta-h{margin:0;max-width:15ch;font-size:clamp(28px,3vw,40px);line-height:1.05}

/* ── related posts and the way back ───────────────────────────────────── */
.bl-related{margin-top:64px;padding-top:40px;border-top:1px solid var(--line-soft)}
.bl-related h2{font-size:clamp(24px,2.2vw,28px);margin:0 0 20px}
.bl-back{display:flex;flex-wrap:wrap;gap:10px 22px;margin:34px 0 0;font-size:15px}
.bl-back a{color:var(--muted);text-decoration:none}
.bl-back a:hover{color:var(--text);text-decoration:underline}

/* ── /blog and the topic pages ────────────────────────────────────────── */
.bl-hero{max-width:780px;margin:6px 0 44px}
.bl-hero h1{font-size:clamp(40px,5vw,64px);line-height:1;margin:0 0 18px}
.bl-meta{display:flex;flex-wrap:wrap;gap:6px 0;margin:6px 0 0;font-size:14px;color:var(--faint)}
.bl-meta>*+*::before{content:"·";margin:0 10px;color:var(--faint);display:inline-block}
.bl-meta a{color:var(--violet-ink);text-decoration:none}
.bl-meta a:hover{text-decoration:underline}
.bl-h2{font-size:clamp(22px,2vw,26px);margin:0 0 16px}
.bl-sub{color:var(--muted);margin:-8px 0 18px;max-width:64ch}
.bl-topic-hero .mchip{width:44px;height:44px;border-radius:13px;margin-bottom:18px}
.bl-topic-hero .mchip .i{width:24px;height:24px}
.bl-topic-hero .bl-pillar{margin:22px 0 0;max-width:640px}
.bl-filter{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.bl-filter[hidden]{display:none}
.bl-filter button{font:500 14px/1 var(--f-ui);color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:9px 14px;cursor:pointer;min-height:38px}
.bl-filter button:hover{color:var(--text);border-color:color-mix(in srgb,var(--violet-hi) 60%,var(--line))}
.bl-filter button span{color:var(--faint);margin-left:4px;font-variant-numeric:tabular-nums}
.bl-filter button[aria-pressed="true"]{color:var(--text);border-color:var(--violet-hi);background:var(--violet-wash)}
.bl-filter-n{color:var(--faint);font-size:14px;margin:-6px 0 14px}
.bl-filter-n[hidden]{display:none}
.bl-topics-sec{margin-top:80px}
.bl-topics{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.bl-topic{display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border:1px solid var(--line);border-radius:16px;background:var(--bg-2)}
.bl-topic h3{font-size:19px;margin:0 0 6px;display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px}
.bl-topic h3 a{text-decoration:none}
.bl-topic h3 a:hover{color:var(--violet-ink)}
.bl-count{font:400 13px var(--f-ui);color:var(--faint);letter-spacing:0}
.bl-topic p{margin:0;color:var(--muted);font-size:15px;line-height:1.5}
.bl-topic .bl-topic-pillar{margin-top:8px;font-size:14px;color:var(--faint)}
.bl-topic-pillar a{color:var(--violet-ink);text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--violet-ink) 40%,transparent);text-underline-offset:3px}
.bl-topic.is-current{border-color:var(--violet-hi)}
.bl-others{margin-top:64px}
.bl-others p{display:flex;flex-wrap:wrap;gap:8px;margin:0}
.bl-others a{display:inline-flex;align-items:center;gap:7px;padding:9px 14px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--muted);font-size:14.5px}
.bl-others a .i{width:16px;height:16px}
.bl-others a:hover{color:var(--text);border-color:var(--violet-hi)}

/* ── narrower screens ─────────────────────────────────────────────────── */
@media (max-width:1100px){
  .bl-layout,.bl-layout.no-rail{grid-template-columns:minmax(0,720px);justify-content:start}
  .bl-rail{display:none}
}
@media (max-width:960px){
  .bl-cta-wide{grid-template-columns:minmax(0,1fr)}
  .bl-cta-wide .bl-cta-h{max-width:none}
}
@media (max-width:760px){
  .bl-wrap{padding-top:20px}
  .bl-topics{grid-template-columns:1fr}
  .bl-body p,.bl-body li{font-size:17px}
  .bl-body blockquote p{font-size:19px}
  .bl-cta,.bl-cta-end,.bl-cta-wide{padding:20px 18px 18px}
  .bl-cta .bl-cta-grid,.bl-cta-inline .bl-cta-grid{grid-template-columns:minmax(0,1fr);grid-template-areas:"k" "dl" "v" "trial" "note";gap:8px}
  .bl-cta-inline .bl-cta-grid{grid-template-areas:"k" "dl" "trial" "note"}
  .bl-cta .bl-trial{justify-self:stretch;margin-top:10px}
  .bl-cta .bl-cta-h{margin-bottom:14px}
  .bl-pillar{padding:12px 14px}
  .bl-table table{font-size:14.5px}
  .bl-table th,.bl-table td{padding:9px 10px}
  .bl-pillar .mchip{display:none}
  .bl-hero{margin-bottom:32px}
  /* the topic filter: one row that scrolls sideways, edge to edge */
  .bl-filter{flex-wrap:nowrap;overflow-x:auto;margin:0 -20px 18px;padding:0 20px 4px;scrollbar-width:none;overscroll-behavior-x:contain}
  .bl-filter::-webkit-scrollbar{display:none}
  .bl-filter button{flex:none}
}