/* AI Lab pages. Tokens, nav pill, row, buttons and dark band copied from the homepage styles. */
:root{
  color-scheme:light;
  --paper:#f6f5f1; --paper-2:#eceae3; --card:#ffffff;
  --ink:#15142a; --ink-2:#1d1c36; --body:#3a394d; --muted:#6d6c7e; --line:rgba(21,20,42,.12);
  --on-ink:#f3f2ee; --on-ink-muted:rgba(243,242,238,.64); --on-ink-line:rgba(243,242,238,.14);
  --indigo:#3730a3; --indigo-soft:#aaa5f3;
  --f-display:"Fraunces",Georgia,serif;
  --f-body:"Geist",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --f-mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.22,1,.36,1);
}
@view-transition{navigation:auto}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--body);font-family:var(--f-body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:rgba(55,48,163,.18)}
.wrap{max-width:1240px;margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
.label{font-family:var(--f-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase}
:focus-visible{outline:2px solid var(--indigo);outline-offset:3px;border-radius:6px}

/* nav (same as homepage) */
.nav{position:fixed;top:calc(14px + env(safe-area-inset-top,0px));left:0;right:0;z-index:50;display:flex;justify-content:center;pointer-events:none}
.pill{pointer-events:auto;display:flex;align-items:center;gap:2px;padding:6px 6px 6px 18px;border-radius:999px;background:rgba(255,255,255,.78);border:1px solid var(--line);
  backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);box-shadow:0 10px 30px -18px rgba(21,20,42,.35)}
.pill .brand{font-family:var(--f-display);font-size:22px;color:var(--ink);margin-right:10px}
.pill .brand i{color:var(--indigo);font-style:normal}
.pill a.it{font-size:14px;font-weight:500;color:var(--muted);padding:8px 15px;border-radius:999px;transition:color .2s,background .2s;white-space:nowrap}
.pill a.it:hover{color:var(--ink);background:rgba(21,20,42,.06)}
.pill a.it.on{background:var(--ink);color:var(--on-ink)}
@media (max-width:560px){.pill a.it{padding:8px 11px}}

/* page head */
.lab-head{padding-top:clamp(130px,16vw,180px);padding-bottom:clamp(36px,5vw,56px)}
.kick{display:block;color:var(--indigo);margin-bottom:18px}
.lab-head h1{font-family:var(--f-display);font-weight:500;letter-spacing:-.02em;font-size:clamp(48px,7vw,96px);line-height:1;color:var(--ink)}
.lab-head .intro{margin-top:22px;font-size:clamp(18px,1.6vw,21px);line-height:1.6;color:var(--body);max-width:52ch}

/* list: row left, media card right (Work list pattern) */
.lab-list{padding-bottom:clamp(80px,10vw,130px)}
.wgrid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);gap:clamp(24px,4vw,64px);align-items:center}
.list{border-top:1px solid var(--line)}
.item{border-bottom:1px solid var(--line)}
.row{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:6px 14px;align-items:baseline;padding:26px 0 28px;color:inherit}
.row .n{font-family:var(--f-mono);font-size:12px;color:var(--indigo)}
.row .t{font-family:var(--f-display);font-weight:500;letter-spacing:-.02em;font-size:clamp(32px,3.6vw,48px);line-height:1.05;color:var(--ink);text-wrap:balance}
.row .t .ar{color:var(--indigo);display:inline-block;margin-left:.2em;transition:transform .45s var(--ease)}
.row:hover .t .ar{transform:translateX(6px)}
.row .y{font-family:var(--f-mono);font-size:12px;color:var(--muted)}
.row .tags{grid-column:2/4;display:flex;flex-wrap:wrap;gap:6px 14px;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:6px}
.row .tags span:not(:last-child)::after{content:"·";margin-left:14px;opacity:.6}
.row .g{grid-column:2/4;margin-top:12px;font-size:16px;line-height:1.6;color:var(--body);max-width:50ch}

.media{display:block;border-radius:18px;overflow:hidden;background:var(--card);border:1px solid var(--line);box-shadow:0 30px 60px -36px rgba(21,20,42,.45);transition:transform .6s var(--ease)}
.media:hover{transform:translateY(-4px)}
.media img{width:100%;height:auto}
.media .cap{display:flex;justify-content:space-between;gap:12px;padding:12px 16px;border-top:1px solid var(--line);color:var(--muted);font-size:11px}

/* experiment page */
.back-link{display:inline-block;font-family:var(--f-mono);font-size:12.5px;letter-spacing:.08em;color:var(--muted);margin-bottom:28px}
.back-link:hover{color:var(--ink)}
.exp-head h1{font-size:clamp(40px,5.2vw,72px);line-height:1.04;max-width:20ch;text-wrap:balance}
.meta{display:grid;grid-template-columns:repeat(4,1fr);margin-top:48px;border-top:1px solid var(--line)}
.meta div{padding:22px 22px 4px 0}
.meta .k{display:block;color:var(--muted);margin-bottom:10px}
.meta p{font-size:15.5px;line-height:1.6;color:var(--ink)}

.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,3.5vw,48px);padding-block:clamp(40px,5vw,64px);border-top:1px solid var(--line)}
.cols .k{display:block;color:var(--indigo);margin-bottom:14px}
.cols p{font-size:16.5px;line-height:1.65;color:var(--body)}

.facts{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.fact{padding:30px 22px 34px;border-left:1px solid var(--line)}
.fact:first-child{border-left:none;padding-left:0}
.fact b{display:block;font-family:var(--f-display);font-weight:500;font-size:clamp(40px,4.4vw,64px);line-height:1;letter-spacing:-.01em;color:var(--ink)}
.fact small{display:block;margin-top:12px;font-size:13.5px;line-height:1.55;color:var(--muted);max-width:22ch}

/* dark band: full-width navy section with a light browser frame */
.band-sec{margin-top:clamp(64px,8vw,110px);background:#0c1f45;padding-block:clamp(64px,8vw,104px);color:rgba(243,242,238,.7)}
.band .kick{color:#7ea2ff;margin-bottom:12px}
.band h2{font-family:var(--f-display);font-weight:400;letter-spacing:-.01em;font-size:clamp(36px,4.2vw,56px);line-height:1.05;color:var(--on-ink)}
.band .txt{margin-top:16px;max-width:52ch;font-size:16.5px;line-height:1.65}
.frame{display:block;margin-top:clamp(32px,4vw,44px);border-radius:16px;overflow:hidden;background:#e7e5df;box-shadow:0 40px 90px -40px rgba(0,0,0,.7);transition:transform .6s var(--ease)}
.frame:hover{transform:translateY(-4px)}
.frame .bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;padding:13px 20px;border-bottom:1px solid rgba(21,20,42,.1)}
.frame .dots{display:flex;gap:7px}
.frame .dots i{width:11px;height:11px;border-radius:50%;background:#c9c6bc}
.frame .addr{min-width:0;font-family:var(--f-mono);font-size:12.5px;color:var(--body);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.frame .open{justify-self:end;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--indigo)}
.frame img{width:100%;height:auto}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;transition:transform .2s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn.p{background:var(--on-ink);color:var(--ink)}
.btn.g{border:1px solid var(--on-ink-line);color:var(--on-ink)}


@media (max-width:900px){
  .wgrid{grid-template-columns:1fr}
  .row{grid-template-columns:30px minmax(0,1fr) auto}
  .meta{grid-template-columns:repeat(2,1fr)}
  .cols{grid-template-columns:1fr}
  .facts{grid-template-columns:repeat(2,1fr)}
  .fact{border-left:none;padding-left:0}
  .fact:nth-child(n+3){border-top:1px solid var(--line)}
}
@media (max-width:560px){
  .meta{grid-template-columns:1fr}
  .meta div{padding-right:0}
  .frame .dots{display:none}
  .frame .bar{grid-template-columns:minmax(0,1fr) auto;padding:11px 14px}
  .frame .addr{font-size:11.5px}
  .btn{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* experiment page v2: band under the meta row, then body */
.band-sec.band-top{margin-top:clamp(48px,6vw,72px)}
.exp-body{padding-top:clamp(48px,6vw,80px);padding-bottom:clamp(80px,10vw,120px)}
.exp-body .cols{border-top:none;padding-top:0}
.shot{display:block;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--card);box-shadow:0 20px 40px -30px rgba(21,20,42,.4);cursor:zoom-in;transition:transform .4s var(--ease)}
.shot:hover{transform:translateY(-2px)}
.shot img{width:100%;height:auto}

/* image viewer: copied from the case study lightbox (cs-v4.css) */
.lb{ position:fixed; inset:0; z-index:300; background:#080a12; opacity:0; pointer-events:none; transition:opacity .2s; }
.lb.open{ opacity:1; pointer-events:auto; }
.lb-in{ position:absolute; inset:68px 24px 52px; display:flex; overflow:auto; overscroll-behavior:contain; -webkit-overflow-scrolling:touch; scrollbar-width:thin; scrollbar-color:rgba(244,241,232,.3) transparent; }
.lb-in img{ display:block; flex:none; margin:auto; max-width:100%; max-height:100%; width:auto; height:auto; border-radius:10px; cursor:zoom-in; user-select:none; -webkit-user-drag:none; }
.lb.zoomed .lb-in img{ max-width:none; max-height:none; cursor:grab; border-radius:4px; }
.lb.zoomed.drag .lb-in img{ cursor:grabbing; }
.lb-cap{ position:absolute; left:24px; right:24px; bottom:16px; color:rgba(244,241,232,.72); font-size:13.5px; line-height:1.4; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.lb-bar{ position:absolute; top:14px; right:16px; display:flex; align-items:center; gap:4px; padding:4px; border-radius:999px; background:rgba(255,255,255,.08); border:1px solid rgba(244,241,232,.16); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); }
.lb-bar button{ width:40px; height:40px; border-radius:50%; border:0; background:transparent; color:#f4f1e8; display:grid; place-items:center; cursor:pointer; transition:background .15s; }
.lb-bar button svg{ width:18px; height:18px; }
.lb-bar button:hover{ background:rgba(255,255,255,.12); }
.lb-bar button:disabled{ opacity:.35; cursor:default; background:transparent; }
.lb-bar button:focus-visible{ outline:2px solid #fff; outline-offset:1px; }
.lb-bar .lb-pct{ min-width:52px; text-align:center; font-family:var(--f-mono, ui-monospace, monospace); font-size:12px; letter-spacing:.04em; color:rgba(244,241,232,.85); font-variant-numeric:tabular-nums; }
.lb-bar .lb-sep{ width:1px; height:22px; background:rgba(244,241,232,.2); margin:0 4px; }
@media (max-width:640px){ .lb-in{ inset:64px 8px 48px; } .lb-bar{ right:8px; top:10px; } .lb-bar button{ width:38px; height:38px; } .lb-bar .lb-pct{ min-width:44px; } .lb-cap{ left:12px; right:12px; } }

/* experiment page v3: playground embed and under-the-hood evidence */
.sec-h{font-family:var(--f-display);font-weight:500;letter-spacing:-.02em;font-size:clamp(30px,3.4vw,44px);line-height:1.08;color:var(--ink);text-wrap:balance}
.sec-p{margin-top:14px;max-width:62ch;font-size:16.5px;line-height:1.65;color:var(--body)}
.pg{padding-block:clamp(40px,5vw,64px);border-top:1px solid var(--line)}
.pg-note{margin-top:16px;color:var(--muted);font-size:11px;line-height:1.6}
.pg-frame{margin-top:24px;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--card);box-shadow:0 30px 60px -36px rgba(21,20,42,.45)}
.pg-frame iframe{display:block;width:100%;height:min(88vh,1000px);min-height:560px;border:0;background:var(--card)}
.pg-open{display:inline-flex;align-items:center;gap:8px;margin-top:20px;padding:13px 24px;border-radius:999px;border:1px solid var(--line);font-weight:600;font-size:15px;color:var(--ink);transition:transform .2s var(--ease)}
.pg-open:hover{transform:translateY(-2px)}
.uh{padding-block:clamp(40px,5vw,64px);border-top:1px solid var(--line)}
.ev{margin:clamp(28px,3.5vw,40px) 0 0}
.ev h3{font-family:var(--f-display);font-weight:500;letter-spacing:-.015em;font-size:clamp(22px,2.2vw,28px);line-height:1.15;color:var(--ink);margin-bottom:14px}
.ev figcaption{margin-top:12px;max-width:70ch;font-size:15px;line-height:1.6;color:var(--muted)}
.ev-tests .shot{max-width:880px}
@media (max-width:900px){.facts{grid-template-columns:repeat(2,1fr)}}

/* experiment page v4: story, workflow sequence, results, next */
.story,.wf,.res,.next{padding-block:clamp(40px,5vw,64px);border-top:1px solid var(--line)}
.story .sec-p+.sec-p,.next .sec-p+.sec-p{margin-top:12px}
.seq{list-style:none;margin:22px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:28px}
.seq li{position:relative;display:flex;align-items:center;justify-content:center;text-align:center;min-height:56px;font-size:14.5px;font-weight:500;line-height:1.35;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:14px;padding:10px 14px}
.seq li+li::before{content:"→";position:absolute;left:-21px;top:50%;transform:translateY(-50%);color:var(--indigo);font-weight:400}
.res .kick{margin-bottom:6px}
.facts.f3{grid-template-columns:repeat(3,1fr)}
.res-note{margin-top:14px;color:var(--muted);font-size:11px}
.next .kick{margin-bottom:12px}
@media (max-width:900px){.seq{grid-template-columns:1fr;gap:26px;max-width:340px}.seq li{justify-content:flex-start;text-align:left;min-height:0}.seq li+li::before{content:"↓";left:22px;top:-23px;transform:none}}
@media (max-width:900px){.facts.f3{grid-template-columns:1fr}.facts.f3 .fact{border-top:1px solid var(--line)}.facts.f3 .fact:first-child{border-top:none}}