/* Stack Innovations — public journal */
.blog-page{background:var(--ink-0)}
.blog-page .nav{mix-blend-mode:normal;background:linear-gradient(to bottom,rgba(9,9,11,.95) 0%,rgba(9,9,11,.8) 60%,rgba(9,9,11,0) 100%);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transform:translateZ(0);backface-visibility:hidden}
.bprogress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--lime);z-index:200;transition:width .1s linear}

.bwrap{max-width:1080px;margin:0 auto;padding:150px 24px 40px;min-height:60vh}
.bwrap--post{max-width:1120px}

/* ---------- shared bits ---------- */
.beyebrow{display:inline-flex;align-items:center;gap:10px;font:11px var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--bone-3);margin-bottom:20px}
.beyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 10px var(--lime)}
.bmeta{display:flex;gap:9px;align-items:center;flex-wrap:wrap;color:var(--bone-3);font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.bmeta .cat{color:var(--lime)}
.bmore{display:inline-block;margin-top:34px;font:12px var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--bone-3)}
.bmore:hover{color:var(--lime)}

/* ---------- index ---------- */
.bhead{margin-bottom:54px;max-width:760px}
.bhead h1{margin:0 0 20px;font:300 clamp(46px,7.5vw,88px)/1.0 var(--f-display);letter-spacing:-.035em;color:var(--bone)}
.bhead h1 em{font-style:italic;color:var(--bone-2)}
.bhead p{color:var(--bone-3);font-size:16.5px;line-height:1.65;margin:0 0 26px;max-width:56ch}
.bfilters{display:flex;gap:8px;flex-wrap:wrap}
.bfilter{padding:7px 16px;border-radius:999px;border:1px solid var(--line);font:11.5px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--bone-3)}
.bfilter:hover{color:var(--bone);border-color:var(--bone-3)}
.bfilter.on{background:var(--lime);border-color:var(--lime);color:var(--ink-0)}

.bfeat{display:grid;grid-template-columns:1.15fr 1fr;gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;margin-bottom:56px;background:var(--ink-1);transition:border-color .3s}
.bfeat:hover{border-color:rgba(212,255,58,.45)}
.bfeat__img{position:relative;min-height:300px;background:var(--ink-2)}
.bfeat__img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.bfeat__body{padding:40px 38px;display:flex;flex-direction:column;justify-content:center}
.bfeat__body h2{margin:16px 0 12px;font:400 clamp(26px,3.2vw,38px)/1.15 var(--f-display);letter-spacing:-.02em;color:var(--bone)}
.bfeat:hover .bfeat__body h2{color:var(--lime)}
.bfeat__body p{color:var(--bone-3);font-size:15px;line-height:1.65;margin:0 0 22px}
.bfeat__go{font:11.5px var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--lime)}
.bfeat__go i{font-style:normal;display:inline-block;transition:transform .3s}
.bfeat:hover .bfeat__go i{transform:translateX(5px)}

.blist{list-style:none;padding:0;margin:0}
.brow{display:flex;gap:24px;align-items:center;padding:24px 8px;border-top:1px solid var(--line);transition:background .25s}
.blist li:last-child .brow{border-bottom:1px solid var(--line)}
.brow:hover{background:rgba(245,242,236,.022)}
.brow__num{flex:0 0 28px;color:var(--bone-3);font-size:11px;align-self:flex-start;padding-top:4px}
.brow__thumb{flex:0 0 104px;height:66px;border-radius:8px;overflow:hidden;border:1px solid var(--line);background:var(--ink-2)}
.brow__thumb img{width:100%;height:100%;object-fit:cover;display:block}
.brow__main{flex:1;min-width:0}
.brow__main b{display:block;font:500 clamp(18px,2.3vw,24px)/1.3 var(--f-sans);letter-spacing:-.015em;color:var(--bone);margin-bottom:6px}
.brow:hover .brow__main b{color:var(--lime)}
.brow__main small{display:block;color:var(--bone-3);font-size:14px;line-height:1.55;max-width:64ch}
.brow__tags{display:block;margin-top:8px;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--bone-3);opacity:.75}
.brow__date{flex:0 0 auto;color:var(--bone-3);font-size:11px;letter-spacing:.08em;white-space:nowrap;align-self:flex-start;padding-top:4px}
.brow__date i{font-style:normal;color:var(--lime);margin-left:10px;display:inline-block;transition:transform .3s}
.brow:hover .brow__date i{transform:translateX(4px)}
.bempty{border:1px dashed var(--line);border-radius:16px;padding:56px 30px;text-align:center;color:var(--bone-3)}

/* ---------- post ---------- */
.bcrumb{display:flex;gap:10px;align-items:center;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--bone-3);margin-bottom:30px}
.bcrumb a{color:var(--bone-3)}.bcrumb a:hover{color:var(--lime)}
.bcrumb em{font-style:normal;color:var(--bone-2)}
.bpost__head{max-width:820px;margin-bottom:36px}
.bpost__head h1{margin:0 0 20px;font:300 clamp(34px,5.4vw,62px)/1.06 var(--f-display);letter-spacing:-.03em;color:var(--bone)}
.bstand{font:300 clamp(18px,2.1vw,22px)/1.55 var(--f-sans);color:var(--bone-2);margin:0 0 22px;max-width:60ch}
.bhero{margin:0 0 48px;border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.bhero img{width:100%;display:block;aspect-ratio:16/9;object-fit:cover}
.bhero figcaption,.bfig figcaption{padding:12px 4px 0;font:11.5px var(--f-mono);letter-spacing:.06em;color:var(--bone-3)}

.bcols{display:grid;grid-template-columns:minmax(0,1fr) 224px;gap:56px;align-items:start}
.bpost__body{font-size:17px;line-height:1.78;color:var(--bone-2);max-width:70ch;min-width:0}
.bpost__body h2{font:400 clamp(25px,3vw,33px)/1.22 var(--f-display);letter-spacing:-.02em;color:var(--bone);margin:52px 0 16px;scroll-margin-top:110px}
.bpost__body h3{font:500 20px/1.35 var(--f-sans);color:var(--bone);margin:36px 0 10px;scroll-margin-top:110px}
.bpost__body h4{font:500 16px var(--f-sans);color:var(--bone);margin:28px 0 8px}
.bpost__body p{margin:0 0 20px}
.bpost__body a{color:var(--lime);border-bottom:1px solid rgba(212,255,58,.32)}
.bpost__body a:hover{border-bottom-color:var(--lime)}
.bpost__body a.ext::after{content:"↗";font-size:.75em;margin-left:2px;opacity:.7}
.bpost__body strong{color:var(--bone);font-weight:600}
.bpost__body ul,.bpost__body ol{padding-left:22px;margin:0 0 20px}
.bpost__body li{margin:8px 0}
.bpost__body li::marker{color:var(--lime)}
.bpost__body blockquote{margin:26px 0;padding:2px 22px;border-left:2px solid var(--line);color:var(--bone-3);font-style:italic}
.bpost__body blockquote.pull{border-left:3px solid var(--lime);margin:40px 0;padding:6px 26px}
.bpost__body blockquote.pull p{font:300 clamp(20px,2.5vw,27px)/1.4 var(--f-display);color:var(--bone);font-style:normal;margin:0}
.bpost__body code{font:13.5px var(--f-mono);background:rgba(245,242,236,.07);padding:2px 7px;border-radius:5px;color:var(--lime)}
.bpost__body pre{background:#0d0d10;border:1px solid var(--line);border-radius:12px;padding:20px 22px;overflow-x:auto;margin:0 0 24px}
.bpost__body pre code{background:none;padding:0;color:var(--bone-2);font-size:13px;line-height:1.7}
.bpost__body hr{border:0;border-top:1px solid var(--line);margin:44px 0}
.bfig{margin:36px 0}
.bfig img{width:100%;border-radius:14px;border:1px solid var(--line);display:block}

.bfaq{margin-top:52px;border-top:1px solid var(--line);padding-top:12px}
.bfaq details{border-bottom:1px solid var(--line);padding:16px 0}
.bfaq summary{cursor:pointer;list-style:none;font:500 16.5px var(--f-sans);color:var(--bone);display:flex;justify-content:space-between;gap:16px}
.bfaq summary::-webkit-details-marker{display:none}
.bfaq summary::after{content:"+";color:var(--lime);font-family:var(--f-mono)}
.bfaq details[open] summary::after{content:"−"}
.bfaq p{margin:12px 0 0;color:var(--bone-3);font-size:15px;line-height:1.7}

.bcta{margin:56px 0 0;padding:30px 32px;border:1px solid var(--line);border-radius:16px;display:flex;align-items:center;gap:24px;flex-wrap:wrap;background:linear-gradient(120deg,rgba(212,255,58,.055),transparent 58%)}
.bcta b{font:500 19px var(--f-sans);color:var(--bone)}
.bcta p{margin:6px 0 0;color:var(--bone-3);font-size:14.5px}
.bcta>div{flex:1;min-width:230px}
.bcta__btn{flex:0 0 auto;padding:15px 26px;border-radius:999px;background:var(--lime);color:var(--ink-0);font:500 12.5px var(--f-mono);letter-spacing:.1em;text-transform:uppercase}
.bcta__btn:hover{background:#e2ff70}

/* sticky TOC */
.btocwrap{position:relative}
.btoc{position:sticky;top:120px;display:flex;flex-direction:column;gap:9px;border-left:1px solid var(--line);padding-left:20px}
.btoc__label{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--bone-3);margin-bottom:4px}
.btoc a{font-size:13px;line-height:1.4;color:var(--bone-3);border-left:2px solid transparent;margin-left:-22px;padding-left:20px}
.btoc a:hover{color:var(--bone)}
.btoc a.on{color:var(--lime);border-left-color:var(--lime)}
.btoc__share{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.btoc__share a{font:10.5px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;margin-left:0;padding-left:0;border:0}

.brelated{margin-top:72px;border-top:1px solid var(--line);padding-top:34px}
.brelated h2{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--bone-3);margin:0 0 22px;font-weight:500}
.brelated__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px}
.brelated__grid a{display:block}
.brelated__grid .rimg{display:block;aspect-ratio:16/9;border-radius:10px;overflow:hidden;border:1px solid var(--line);margin-bottom:12px;background:var(--ink-2)}
.brelated__grid .rimg img{width:100%;height:100%;object-fit:cover;display:block}
.brelated__grid .rcat{display:block;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--bone-3);margin-bottom:6px}
.brelated__grid b{font:500 16px/1.35 var(--f-sans);color:var(--bone)}
.brelated__grid a:hover b{color:var(--lime)}


@media (max-width:940px){
  .bcols{grid-template-columns:1fr;gap:0}
  .btocwrap{display:none}
  .bfeat{grid-template-columns:1fr}
  .bfeat__img{min-height:210px;aspect-ratio:16/9}
  .bfeat__body{padding:28px 24px}
}
@media (max-width:640px){
  .bwrap{padding-top:120px}
  .brow{flex-wrap:wrap;gap:12px 16px;padding:20px 4px}
  .brow__thumb{flex:0 0 76px;height:50px}
  .brow__date{order:3;padding-top:0}
  .brow__main{flex:1 1 100%;order:2}
  .bcta{padding:24px}
}

/* ============ Newsletter + contact block ============ */
.bsignup{position:relative;z-index:3;padding:0 24px;margin:90px auto 110px;max-width:1080px}
.bsignup__inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  border:1px solid var(--line);border-radius:20px;padding:52px 54px;
  background:linear-gradient(130deg,rgba(212,255,58,.06),transparent 55%),var(--ink-1)}
.bsignup__copy h2{margin:0 0 14px;font:300 clamp(28px,3.4vw,42px)/1.08 var(--f-display);letter-spacing:-.025em;color:var(--bone)}
.bsignup__copy h2 em{font-style:italic;color:var(--bone-2)}
.bsignup__copy p{margin:0;color:var(--bone-3);font-size:15px;line-height:1.65;max-width:42ch}
.bsignup__form .lbl{display:block;font:10.5px var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--bone-3);margin-bottom:10px}
.bsignup__row{display:flex;gap:10px;flex-wrap:wrap}
.bsignup__row input{flex:1;min-width:200px;background:var(--ink-0);border:1px solid var(--line);border-radius:999px;
  color:var(--bone);padding:15px 22px;font:15px var(--f-sans);color-scheme:dark}
.bsignup__row input:focus{outline:none;border-color:var(--lime)}
.bsignup__row button{flex:0 0 auto;padding:15px 28px;border-radius:999px;border:1px solid var(--lime);background:var(--lime);
  color:var(--ink-0);font:500 12.5px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;cursor:pointer;
  display:inline-flex;align-items:center;gap:8px;transition:background .3s var(--ease-out),transform .3s var(--ease-out)}
.bsignup__row button:hover{background:#e2ff70;transform:translateY(-2px)}
.bsignup__row button:disabled{opacity:.55;cursor:default;transform:none}
.bsignup__note{margin:14px 0 0;font-size:12.5px;color:var(--bone-3);line-height:1.6}
.bsignup__note a{color:var(--lime)}
.bsignup__note.is-err{color:#ff8a7a}
.bsignup__done{margin:0;font:400 17px/1.6 var(--f-sans);color:var(--lime)}

/* ============ Spacing rhythm: give the page room to breathe ============ */
.bwrap{padding-top:168px;padding-bottom:20px}
.bhead{margin-bottom:72px}
.bfeat{margin-bottom:16px}
.brow{padding:30px 8px;gap:28px}
.bpost__head{margin-bottom:44px}
.bhero{margin-bottom:64px}
.bcols{gap:72px}
.bpost__body{font-size:17.5px;line-height:1.82}
.bpost__body p{margin:0 0 24px}
.bpost__body h2{margin:64px 0 18px}
.bpost__body h3{margin:44px 0 12px}
.bpost__body ul,.bpost__body ol{margin:0 0 24px}
.bpost__body li{margin:10px 0;padding-left:4px}
.bfig{margin:48px 0}
.bpost__body blockquote.pull{margin:52px 0}
.bfaq{margin-top:64px}
.bcta{margin-top:64px}
.brelated{margin-top:88px;padding-top:44px}

/* the site footer sits directly under the signup block */
.mfooter{position:relative;z-index:3}

@media (max-width:940px){
  .bsignup__inner{grid-template-columns:1fr;gap:32px;padding:38px 30px}
  .bsignup{margin:70px auto 80px}
}
@media (max-width:640px){
  .bwrap{padding-top:128px}
  .bhead{margin-bottom:48px}
  .bcols{gap:0}
  .bpost__body{font-size:16.5px}
  .bhero{margin-bottom:40px}
  .bsignup__inner{padding:30px 22px}
  .bsignup__row button{width:100%;justify-content:center}
}

/* ============ Fixes ============ */
/* The CTA sits inside .bpost__body, where ".bpost__body a" (0,2,0) was
   overriding ".bcta__btn" (0,1,0) and painting the label lime on lime. */
.bpost__body .bcta__btn,
.bpost__body a.bcta__btn{
  color:var(--ink-0);
  border-bottom:0;
  text-decoration:none;
}
.bpost__body .bcta__btn:hover{color:var(--ink-0);background:#e2ff70}
.bpost__body .bcta__btn::after{content:none}

/* long URLs, code and headings must never push the page sideways */
.bpost__body{overflow-wrap:break-word;word-break:break-word}
.bpost__body pre{max-width:100%}
.bcrumb{flex-wrap:wrap}

/* ============ Responsive ============ */
/* Bounded to desktop: below 940px the layout is single-column, and an
   unbounded max-width rule here would re-apply the two-column grid. */
@media (min-width:941px) and (max-width:1180px){
  .bwrap{padding-left:28px;padding-right:28px}
  .bcols{gap:48px}
}
@media (min-width:941px) and (max-width:1024px){
  .bcols{grid-template-columns:minmax(0,1fr) 200px;gap:40px}
  .bfeat__body{padding:34px 30px}
}
@media (max-width:940px){
  .bwrap{padding-top:150px}
  .bhead{margin-bottom:52px}
  .bcta{padding:26px 24px}
}
@media (max-width:720px){
  .bwrap{padding-top:120px;padding-left:20px;padding-right:20px}
  .bhead{margin-bottom:40px}
  .bhead h1{font-size:clamp(38px,10vw,56px)}
  .bpost__head h1{font-size:clamp(30px,8.4vw,44px)}
  .bstand{font-size:17px}
  .bpost__head{margin-bottom:30px}
  .bhero{margin-bottom:34px;border-radius:12px}
  .bpost__body{font-size:16.5px;line-height:1.75}
  .bpost__body h2{font-size:clamp(23px,6.4vw,28px);margin:46px 0 14px}
  .bpost__body h3{font-size:18.5px;margin:34px 0 10px}
  .bpost__body blockquote.pull{margin:36px 0;padding:4px 18px}
  .bpost__body blockquote.pull p{font-size:20px}
  .bpost__body pre{padding:16px;border-radius:10px}
  .bpost__body pre code{font-size:12.5px}
  .bfig{margin:34px 0}
  .bfaq{margin-top:44px}
  .bfaq summary{font-size:15.5px}
  .brelated{margin-top:56px;padding-top:32px}
  /* stacked CTA with a full-width tap target */
  .bcta{flex-direction:column;align-items:stretch;gap:18px;margin-top:44px;padding:24px 20px}
  .bcta>div{min-width:0}
  .bcta__btn{width:100%;text-align:center;justify-content:center;padding:16px 20px}
  .bsignup{margin:56px auto 64px;padding:0 20px}
  .bsignup__inner{padding:28px 20px;gap:26px;border-radius:16px}
  .bsignup__copy h2{font-size:clamp(24px,7vw,32px)}
  /* 16px minimum stops iOS Safari zooming the page on focus */
  .bsignup__row input{font-size:16px;padding:14px 18px}
  .bsignup__row button{width:100%;justify-content:center;padding:15px 20px}
  .bfilter{padding:9px 15px}          /* comfortable tap target */
  .brow{padding:22px 4px;gap:14px 16px}
  .brow__num{display:none}
  .brow__thumb{flex:0 0 84px;height:56px}
  .brow__main b{font-size:18px}
  .brow__main small{font-size:13.5px}
  .brow__date{font-size:10.5px}
  .bfeat{border-radius:14px;margin-bottom:8px}
  .bfeat__body{padding:26px 20px}
  .bfeat__body h2{font-size:clamp(22px,6vw,28px)}
}
@media (max-width:400px){
  .bwrap{padding-left:16px;padding-right:16px}
  .brow__thumb{display:none}
  .bsignup{padding:0 16px}
  .bsignup__inner{padding:24px 18px}
}

/* Comfortable tap targets on touch devices */
@media (pointer:coarse){
  .bfilter{padding:12px 18px}
  .btoc a{padding-top:6px;padding-bottom:6px}
  .bfaq summary{padding:4px 0}
  .bmore{padding:8px 0}
}