/* ============================================================
   LLM Leads blog: the shared stylesheet for /blog/ and every post.
   The palette and type are the marketing page's (site/index.html),
   copied rather than linked because that page is one self-contained
   file by design. Change a token there, change it here.
   ============================================================ */
:root{
  --ground:#0E1116; --surface:#161B22; --surface-2:#1B222C;
  --line:#242B36; --line-soft:#1E2530;
  --ink:#E6EAF0; --ink-2:#B6C0CF; --muted:#8A94A6; --faint:#7C89A1;
  --amber:#F2A93B; --amber-dim:#8A6320;
  --cta:#FF9421; --cta-hover:#FFB055; --cta-ink:#1A1005;
  --steel:#5AA9E6; --steel-dim:#2C5C82;
  --red:#E5695F; --green:#4FBF8B;
  --r:10px; --maxw:1120px; --prose:720px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ground);color:var(--ink);
  font-family:"IBM Plex Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
img,video{max-width:100%;height:auto}
a{color:var(--steel);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:Archivo,ui-sans-serif,system-ui,sans-serif;text-wrap:balance;letter-spacing:-.02em;color:var(--ink)}
h1{font-size:clamp(2.1rem,5vw,3.2rem);line-height:1.08;font-weight:800;margin:0 0 1.1rem}
h2{font-size:clamp(1.45rem,3vw,1.9rem);font-weight:700;line-height:1.2;margin:0 0 .8rem}
h3{font-size:1.14rem;font-weight:600;margin:1.8rem 0 .5rem;letter-spacing:-.01em}
p{margin:0 0 1.1rem}
.mono{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);margin:0 0 1rem}
.lead{font-size:1.18rem;color:var(--ink-2)}
.note{font-size:.86rem;color:var(--faint);line-height:1.55}
code{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-size:.86em;
  background:var(--surface-2);border:1px solid var(--line);padding:.05rem .35rem;border-radius:5px;color:var(--ink)}
strong{color:var(--ink);font-weight:600}

/* ---- top bar + footer: same markup and look as the marketing page ---- */
.topbar{border-bottom:1px solid var(--line);background:var(--ground);position:sticky;top:0;z-index:20}
.topbar-in{max-width:var(--maxw);margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:9px;font-family:Archivo;font-weight:800;font-size:1.06rem;letter-spacing:-.02em;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand-mark{width:19px;height:19px;border:2px solid var(--amber);border-radius:4px;position:relative;flex:none}
.brand-mark::after{content:"";position:absolute;inset:3px;background:var(--amber);border-radius:1px;opacity:.32}
.topnav{margin-left:auto;display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.topnav a{color:var(--ink-2);font-size:.92rem}
.topnav a[aria-current="page"]{color:var(--ink)}
.topnav a.btn-nav{color:var(--cta-ink)}
.btn{display:inline-block;padding:.72rem 1.25rem;border-radius:var(--r);font-weight:600;font-size:.95rem;border:1px solid transparent;cursor:pointer;line-height:1.4}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--cta);color:var(--cta-ink);font-weight:700;
  box-shadow:0 0 0 1px rgba(255,148,33,.5),0 8px 22px -10px rgba(255,148,33,.75)}
.btn-primary:hover{background:var(--cta-hover)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:var(--surface)}
.btn-ghost:hover{border-color:var(--steel-dim);background:var(--surface-2)}
.btn-nav{padding:.56rem 1.15rem;font-size:.9rem}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:1.4rem}

footer{border-top:1px solid var(--line);padding:34px 0;color:var(--faint);font-size:.84rem;margin-top:0}
.foot-in{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.foot-in a{color:var(--ink-2)}
.foot-in a:hover{color:var(--amber);text-decoration:none}
.foot-legal{max-width:var(--maxw);margin:0 auto;padding:12px 24px 0;font-size:.78rem;line-height:1.5;color:var(--faint);text-align:center}

/* ---- page frames ---- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.prose{max-width:var(--prose);margin:0 auto;padding:0 24px}
.wide{max-width:1040px;margin:0 auto;padding:0 24px}
.post-hero{padding:64px 0 28px}
.byline{font-size:.88rem;color:var(--muted);margin-top:1.2rem}
/* each piece stays whole and the line breaks BETWEEN pieces (there is no space between the spans) */
.byline{display:flex;flex-wrap:wrap;row-gap:2px}
.byline span{white-space:nowrap}
.byline span+span::before{content:"\00b7";margin:0 .5rem;color:var(--faint)}
.post-sec{padding:56px 0;border-top:1px solid var(--line)}
.post-sec.alt{background:var(--surface);border-bottom:1px solid var(--line)}
.post-sec ul{padding-left:1.2rem;margin:0 0 1.2rem}
.post-sec li{margin-bottom:.55rem;color:var(--ink)}
.post-sec li::marker{color:var(--amber)}
.sec-num{display:inline-block;font-family:"IBM Plex Mono",monospace;font-weight:600;font-size:.72rem;
  color:var(--cta-ink);background:var(--amber);padding:.12rem .5rem;border-radius:6px;margin-right:.55rem;letter-spacing:.06em}

/* ---- figures that open the post ---- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:1.4rem 0 1rem}
.stat{border:1px solid var(--line);border-radius:var(--r);padding:18px;background:var(--surface)}
.stat .v{font-family:Archivo;font-weight:800;font-size:1.9rem;line-height:1;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.stat .k{font-size:.84rem;color:var(--muted);margin-top:.5rem;line-height:1.4}

.toc,.post-sec .toc{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px;margin:1.6rem 0 0;padding:0;list-style:none}
.toc li,.post-sec .toc li{margin:0}
.toc a{display:block;padding:.7rem .9rem;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);color:var(--ink-2);font-size:.93rem}
.toc a:hover{border-color:var(--amber-dim);color:var(--ink);text-decoration:none}

/* ---- diagrams: drawn once at a fixed width, scrolled sideways on a phone ---- */
.figure{margin:1.8rem 0 1.2rem}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:14px;background:var(--ground)}
.scroll svg{display:block;width:100%;height:auto;min-width:860px;max-width:none}
.scroll.small svg{min-width:640px}
.caption{font-size:.86rem;color:var(--muted);margin-top:.6rem}
.diagram{font-family:"IBM Plex Sans",system-ui,sans-serif}
.diagram .sv-zone{fill:var(--surface);stroke:var(--line);stroke-width:1.2}
.diagram .sv-zlabel{font-family:"IBM Plex Mono",monospace;font-size:11px;font-weight:600;letter-spacing:.08em;fill:var(--muted)}
.diagram .sv-box{fill:var(--surface-2);stroke:#35404F;stroke-width:1.2}
.diagram .sv-key{fill:#221B10;stroke:var(--amber);stroke-width:1.5}
.diagram .sv-db{fill:#12202C;stroke:var(--steel);stroke-width:1.4}
.diagram .sv-ext{fill:#11231B;stroke:var(--green);stroke-width:1.4}
.diagram .sv-end{fill:var(--surface);stroke:#35404F;stroke-width:1.2}
.diagram .sv-t{font-size:13px;font-weight:600;fill:var(--ink)}
.diagram .sv-tc{font-size:14px;font-weight:600;fill:var(--ink);text-anchor:middle}
.diagram .sv-s{font-size:11px;fill:var(--ink-2)}
.diagram .sv-sc{font-size:11px;fill:var(--ink-2);text-anchor:middle}
.diagram .sv-ln{stroke:#7C89A1;stroke-width:1.4;fill:none}
.diagram .sv-lb{stroke:var(--amber);stroke-width:1.8;fill:none}
.diagram .sv-lr{stroke:var(--red);stroke-width:1.4;fill:none;stroke-dasharray:5 4}
.diagram .sv-dash{stroke-dasharray:5 4}
.diagram .sv-n{fill:var(--amber)}
.diagram .sv-nt{font-family:"IBM Plex Mono",monospace;font-size:10.5px;font-weight:600;fill:var(--cta-ink);text-anchor:middle}

.flows{list-style:none;padding:0;margin:1.4rem 0 0}
.post-sec .flows li{display:flex;gap:.75rem;margin-bottom:.7rem;align-items:flex-start}
.flows b{flex:0 0 1.6rem;height:1.6rem;border-radius:50%;background:var(--amber);color:var(--cta-ink);
  font-family:"IBM Plex Mono",monospace;font-size:.76rem;display:flex;align-items:center;justify-content:center;margin-top:.15rem}

.loop{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;justify-content:center;margin:1.4rem 0 1.8rem;font-weight:600}
.loop span{padding:.45rem .8rem;border:1px solid var(--line);border-radius:var(--r);background:var(--surface-2);
  font-family:"IBM Plex Mono",monospace;font-size:.84rem;color:var(--ink)}
.loop em{color:var(--faint);font-style:normal;font-weight:400}

.callout{border-left:2px solid var(--amber);background:var(--surface-2);padding:18px 20px;border-radius:0 var(--r) var(--r) 0;margin:1.6rem 0;color:var(--ink-2)}
.callout p:last-child{margin-bottom:0}
.callout strong{color:var(--ink)}

/* ---- screenshots and photos ---- */
.shot a.zoom{display:block;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:var(--surface);cursor:zoom-in}
.shot a.zoom:hover{border-color:var(--amber-dim)}
.shot picture{display:block}
.shot img{display:block;width:100%;height:auto}
.post-hero .wide .figure{margin-top:26px}
.wide .caption{max-width:72ch}
.figure.portrait{max-width:420px;margin-left:auto;margin-right:auto}

/* the short version, under the hero screenshot */
.short{border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:20px 24px;margin:6px 0 0}
.short .eyebrow{margin-bottom:.7rem;color:var(--amber)}
.short ul{margin:0;padding-left:1.1rem}
.short li{margin-bottom:.5rem;color:var(--ink-2)}
.short li:last-child{margin-bottom:0}
.short li::marker{color:var(--amber)}
.short-links{margin:.9rem 0 0;font-size:.92rem}
.short-links a{font-weight:600}
.short-links span{margin:0 .6rem;color:var(--faint)}

/* full-size image viewer (blog.js); the plain link works without it */
/* above the consent banner (9999) and the chat bubble (2147483000), or they paint over it */
.lbx{position:fixed;inset:0;z-index:2147483646;display:none;align-items:flex-start;justify-content:center;
  padding:60px 16px 16px;background:rgba(6,8,11,.94);cursor:zoom-out;overflow:auto}
.lbx.on{display:flex}
/* fit the width and let a tall image scroll, so it never opens smaller than it was on the page */
.lbx img{max-width:100%;width:auto;height:auto;margin:auto;border-radius:8px;cursor:default}
.lbx button{position:fixed;top:10px;right:12px;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:1.2rem;cursor:pointer}

/* ---- closing call to action ---- */
.cta{text-align:center;padding:72px 0;border-top:1px solid var(--line)}
.cta .lead{max-width:60ch;margin-left:auto;margin-right:auto}
.cta .btn-row{justify-content:center}

/* ---- the blog index ---- */
.index-hero{padding:64px 0 24px}
.post-list{list-style:none;padding:0;margin:0 0 72px;display:grid;gap:16px}
.post-card{border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:26px 28px}
.post-card:hover{border-color:var(--amber-dim)}
.post-card h2{font-size:1.45rem;margin:.2rem 0 .6rem}
.post-card h2 a{color:var(--ink)}
.post-card h2 a:hover{color:var(--amber);text-decoration:none}
.post-card p{color:var(--ink-2);margin-bottom:.9rem}
.post-meta{font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.06em;color:var(--muted)}
.post-meta span+span::before{content:"/";margin:0 .55rem;color:var(--faint)}
.read-more{font-weight:600;color:var(--amber)}
.post-thumb{display:block;margin:-26px -28px 20px;border-bottom:1px solid var(--line);
  border-radius:14px 14px 0 0;overflow:hidden}
.post-thumb img{display:block;width:100%;height:auto}

/* ============================================================
   MOBILE. Prospects open these from a LinkedIn message, on a phone.
   Nothing may scroll sideways except a diagram inside its own frame,
   and every tap target is at least 44px.
   ============================================================ */
@media(max-width:760px){
  body{font-size:16px}
  .topnav a:not(.btn){display:none}
  .topbar-in{padding:11px 16px;gap:10px}
  .wrap,.prose,.wide,.foot-in{padding-left:16px;padding-right:16px}
  .foot-legal{padding-left:16px;padding-right:16px}
  .post-hero,.index-hero{padding:38px 0 18px}
  .post-sec{padding:42px 0}
  .lead{font-size:1.06rem}
  .stats{grid-template-columns:1fr 1fr;gap:10px}
  .stat{padding:14px}
  .stat .v{font-size:1.5rem}
  .btn{padding:.85rem 1.1rem;min-height:44px;display:block;text-align:center}
  .topnav .btn{display:inline-block;min-height:0;padding:.5rem .8rem}
  .btn-row{flex-direction:column;gap:10px}
  .btn-row .btn{width:100%}
  .toc a{padding:.8rem .9rem;min-height:44px}
  .post-card{padding:20px}
  .post-thumb{margin:-20px -20px 16px}
  .short{padding:16px 18px}
  .cta{padding:52px 0}
  .foot-in{flex-direction:column;align-items:flex-start;gap:8px}
}
@media(max-width:380px){
  .stats{grid-template-columns:1fr}
}

/* Tables in posts (2026-09-27).
   Tables in posts: numbers right-aligned in tabular figures, a hairline between rows, and the
   wrapper scrolls sideways on a phone instead of widening the page. */
.table-wrap{overflow-x:auto;margin:1.3rem 0 1.5rem;border:1px solid var(--line);border-radius:var(--r)}
.table-wrap table{border-collapse:collapse;width:100%;font-size:.95rem;min-width:420px}
.table-wrap th,.table-wrap td{padding:.6rem .85rem;text-align:left;border-bottom:1px solid var(--line-soft)}
.table-wrap tr:last-child td{border-bottom:0}
.table-wrap th{background:var(--surface);color:var(--muted);font-weight:600;font-size:.82rem;
  letter-spacing:.02em}
.table-wrap td{color:var(--ink-2)}
.table-wrap th:not(:first-child),.table-wrap td:not(:first-child){text-align:right;
  font-variant-numeric:tabular-nums}