/* Emerging Tech How To: brand palette
   Carbon Black #111315 · Soft Gold #D7A83D · Pale Grey #EEF0F3 · Accent Blue #4F6B8A */
:root{
  --carbon:#111315;
  --gold:#D7A83D;
  --pale:#EEF0F3;
  --blue:#4F6B8A;
  --blue-deep:#3E5670;
  --paper:#EEF0F3;
  --card:#FFFFFF;
  --ink:#111315;
  --ink-2:#3A3F47;
  --muted:#636A74;
  --line:#D5DAE1;
  --why:#FFFFFF;
  --code:#F5F6F8;
  --maxw:1180px;
  --read:720px;
  color-scheme: light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 "Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
a{color:inherit}
img{max-width:100%;height:auto}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:12px;background:var(--card);padding:8px 12px;z-index:9}
h1,h2,h3{font-family:"Fraunces",Georgia,serif;font-weight:600;letter-spacing:-.012em;line-height:1.14;margin:0}
.eyebrow{display:block;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:8px}
.sub{color:var(--muted);margin:-4px 0 20px}
.more{display:inline-block;margin-top:14px;font-weight:600;color:var(--blue);text-decoration:none}
.more:hover{color:var(--carbon);text-decoration:underline;text-decoration-color:var(--gold);text-decoration-thickness:2px}

/* masthead */
.mast{background:var(--card);border-bottom:1px solid var(--line)}
.mast-top{background:var(--carbon);color:#C9CED6;font-size:13px}
.mast-top .wrap{display:flex;justify-content:space-between;gap:16px;padding-top:8px;padding-bottom:8px}
.logo-row{display:flex;justify-content:center;padding-top:22px;padding-bottom:16px}
.logo{display:block;line-height:0}
.logo img{width:min(440px,78vw);height:auto}
.desks{display:flex;justify-content:center;flex-wrap:wrap;gap:6px 28px;padding-top:12px;padding-bottom:12px;border-top:1px solid var(--line);font-size:13.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.desks a{text-decoration:none;color:var(--ink-2);padding-bottom:3px;border-bottom:2px solid transparent}
.desks a:hover{color:var(--blue)}
.desks a[aria-current]{color:var(--carbon);border-bottom-color:var(--gold)}
@media (max-width:640px){.hide-sm{display:none}.desks{justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;white-space:nowrap;gap:22px}.logo-row{padding-top:16px;padding-bottom:12px}}

/* section heads echo the logo's circuit line: a rule ending in a ring */
.rule-head{position:relative;font-size:14px;font-family:"Inter",system-ui,sans-serif;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--carbon);border-top:3px solid var(--carbon);padding-top:12px;margin-bottom:18px;margin-right:12px}
.rule-head::after{content:"";position:absolute;right:-12px;top:-9px;width:10px;height:10px;border:3px solid var(--carbon);border-radius:50%;background:var(--paper)}
.rail .rule-head::after,.card-bg .rule-head::after{background:var(--card)}

/* front page */
.front{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:40px;padding-top:32px;padding-bottom:28px}
@media (max-width:860px){.front{grid-template-columns:1fr}}
.lead h1{font-size:clamp(32px,4.6vw,52px);margin-bottom:12px}
.lead h1 a{text-decoration:none}
.lead h1 a:hover{text-decoration:underline;text-decoration-color:var(--gold);text-decoration-thickness:3px;text-underline-offset:7px}
.dek{font-family:"Fraunces",Georgia,serif;font-size:21px;line-height:1.4;color:var(--ink-2);margin:0 0 16px}
.rail{background:var(--card);border:1px solid var(--line);padding:22px 24px 6px;align-self:start}
.brief{display:block;text-decoration:none;padding:0 0 18px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.brief:last-child{border-bottom:0}
.brief h3{font-size:21px;margin-bottom:6px}
.brief:hover h3{color:var(--blue)}
.brief p{margin:0 0 6px;color:var(--ink-2);font-size:16px;line-height:1.5}
.meta{font-size:13px;color:var(--muted)}
.why{background:var(--why);border-left:4px solid var(--gold);padding:14px 18px;margin:18px 0;box-shadow:0 1px 0 var(--line)}
.why strong{display:block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--carbon);margin-bottom:4px}
.why p{margin:0}
.band{padding-top:12px;padding-bottom:28px}
.cols3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:0 32px}

/* desks grid */
.desk-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.desk{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--blue);padding:20px;text-decoration:none;transition:border-color .15s,transform .15s}
.desk b{display:block;font-family:"Fraunces",Georgia,serif;font-size:22px;font-weight:600;margin-bottom:6px}
.desk span{color:var(--ink-2);font-size:15px;line-height:1.5}
.desk:hover{border-top-color:var(--gold);transform:translateY(-2px)}
.desk-head{padding-top:36px;padding-bottom:8px}
.desk-head h1{font-size:clamp(34px,5vw,54px);margin-bottom:10px}

/* video */
.vids{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:26px}
.vid{margin:0;background:var(--card);border:1px solid var(--line)}
.yt,.vid iframe{display:block;width:100%;aspect-ratio:16/9;border:0;background:var(--carbon) center/cover no-repeat;position:relative;cursor:pointer;padding:0}
.play{position:absolute;inset:0;margin:auto;width:64px;height:44px;border-radius:12px;background:rgba(17,19,21,.85);transition:background .15s}
.play::after{content:"";position:absolute;left:26px;top:13px;border-style:solid;border-width:9px 0 9px 15px;border-color:transparent transparent transparent #fff}
.yt:hover .play{background:var(--gold)}
.yt:hover .play::after{border-left-color:var(--carbon)}
.vid figcaption{padding:12px 14px 16px}
.vid figcaption .eyebrow{margin-bottom:4px}
.vid figcaption b{display:block;font-family:"Fraunces",Georgia,serif;font-weight:600;font-size:18px;line-height:1.25}
.vid .by{display:block;font-size:13px;color:var(--muted);margin:4px 0}
.vid .note{display:block;font-size:15px;color:var(--ink-2);line-height:1.5}
.vid-big{margin:12px 0 8px}
.lead-vid{margin-top:26px;border-top:1px solid var(--line);padding-top:18px}

/* article */
.article{max-width:var(--read);margin:0 auto;padding:36px 20px 16px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:16px;text-transform:uppercase;letter-spacing:.08em}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--blue)}
.article h1{font-size:clamp(32px,5vw,48px);margin-bottom:12px}
.byline{display:flex;flex-wrap:wrap;gap:4px 18px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:10px 0;margin:6px 0 24px}
.article .byline + p::first-letter{font-family:"Fraunces",Georgia,serif;float:left;font-size:62px;line-height:.85;padding:6px 8px 0 0;font-weight:700;color:var(--blue)}
.article h2{font-size:28px;margin:36px 0 12px}
.article h3{font-size:21px;margin:26px 0 8px}
.article a{color:var(--blue);text-decoration-color:var(--gold);text-underline-offset:3px}
.article ol,.article ul{padding-left:1.3em}
.article li{margin:6px 0}
.sources{border-top:3px solid var(--carbon);padding-top:12px;margin-top:28px;font-size:15px}
.sources strong{font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.sources ul{margin:8px 0 0}
.sources span{color:var(--muted)}
.box{background:var(--card);border:1px solid var(--line);padding:18px 20px;margin:24px 0}
.box h3{margin-top:0}
.prompt{background:var(--code);border:1px solid var(--line);border-left:3px solid var(--blue);padding:14px 16px;font:15px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre-wrap;margin:14px 0}
.faq details{border-top:1px solid var(--line);padding:14px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:600}
.faq details p{margin:10px 0 0;color:var(--ink-2)}
.next{margin:40px 0 8px;padding:24px;background:var(--carbon);color:var(--pale);border-top:4px solid var(--gold)}
.next h3{font-size:24px;margin-bottom:6px;color:#fff}
.next p{margin:0 0 14px;color:#C9CED6}
.btn{display:inline-block;padding:11px 18px;font-weight:700;text-decoration:none;background:var(--gold);color:var(--carbon) !important;border-radius:4px}
.btn:hover{background:#E3B85A}
.related{padding-top:12px;padding-bottom:20px}

/* static pages */
.page{max-width:var(--read);margin:0 auto;padding:44px 20px}
.page h1{font-size:clamp(32px,5vw,46px);margin-bottom:16px}
.page h2{font-size:26px;margin:32px 0 10px}
.page a{color:var(--blue)}

/* footer */
.site-foot{background:var(--carbon);color:#AEB4BD;margin-top:36px;padding:30px 0 44px;font-size:14px;border-top:4px solid var(--blue)}
.site-foot .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px}
.site-foot strong{color:#fff;font-family:"Fraunces",Georgia,serif;font-size:18px}
.site-foot a{color:var(--pale);text-decoration-color:var(--gold)}