/* Home page sections and motion styles. */
/* hero: normal static section, above the surfaces + demo */
.hero{position:relative;padding:8vh 0 20px}
/* unfold: sticky stage for the demo only */
.unfold{position:relative;height:148vh}
.unfold .stage{position:sticky;top:0;height:100vh;overflow:hidden;perspective:1400px;perspective-origin:70% 30%}
.vignette{
  position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(1100px 700px at 6% -5%,rgba(141,80,246,.13),transparent 65%),radial-gradient(700px 500px at 0% 0%,rgba(109,48,228,.05),transparent 70%);
}
.hero .wrap{position:relative;padding-top:104px;display:grid;grid-template-columns:minmax(0,760px) 420px;column-gap:48px;justify-content:space-between;align-items:center}
.hero .wrap>*{grid-column:1;justify-self:start}
.hero .poster{grid-column:2;grid-row:1/6;align-self:center;justify-self:end}
.poster{
  position:relative;z-index:2;cursor:pointer;padding:12px;border-radius:14px;
  background:rgba(var(--ink),0.046);border:1px solid rgba(var(--ink),0.091);width:420px;
}
.poster .thumb{
  width:100%;height:236px;border-radius:9px;position:relative;overflow:hidden;
  background:#A7A3FF url("../img/video-poster.jpg") center/cover no-repeat;
}
.poster .thumb:after{
  content:"";position:absolute;inset:0;margin:auto;width:48px;height:48px;border-radius:50%;
  background:var(--white);
}
.poster .thumb:before{
  content:"";position:absolute;left:calc(50% - 7px);top:calc(50% - 9px);z-index:1;
  border-left:16px solid #fff;border-top:9px solid transparent;border-bottom:9px solid transparent;
}
.poster .meta{display:flex;justify-content:space-between;font-size:14px;color:var(--mute);padding:12px 4px 2px}
.poster .meta b{color:var(--white);font-weight:400}

/* video modal: opens by scaling from the poster's rect, see motion.js */
.video-modal{position:fixed;inset:0;z-index:300;display:none}
.video-modal.open{display:block}
.video-modal-backdrop{position:absolute;inset:0;background:rgba(17,17,17,.7);opacity:0;transition:opacity .3s var(--ease-out)}
.video-modal.open .video-modal-backdrop{opacity:1}
.video-modal-panel{
  position:fixed;background:#000;border-radius:12px;overflow:hidden;opacity:0;
  transition:top .42s var(--ease-out),left .42s var(--ease-out),width .42s var(--ease-out),height .42s var(--ease-out),opacity .3s var(--ease-out);
}
.video-modal-panel.open{opacity:1}
.video-modal-panel:focus{outline:none}
.video-modal-panel video,.video-modal-panel iframe{width:100%;height:100%;display:block;background:#000;border:0}
.video-modal-close{position:absolute;top:12px;right:12px;z-index:1;width:36px;height:36px;border-radius:50%;border:0;background:rgba(255,255,255,.14);cursor:pointer}
.video-modal-close:hover{background:rgba(255,255,255,.24)}
.video-modal-close span{position:absolute;left:10px;right:10px;top:17px;height:2px;background:#fff}
.video-modal-close span:first-child{transform:rotate(45deg)}
.video-modal-close span:last-child{transform:rotate(-45deg)}
.hero h1{font-size:38px;font-weight:400;letter-spacing:normal;max-width:780px;margin-bottom:16px;line-height:1.15}
.hero p{margin-bottom:16px;font-size:16px;max-width:620px;line-height:1.55}
/* prose links: hero, surfaces intro, problem panels */
.hero p a,.chapter.surfaces .txt p a,.panel p a{color:var(--accent-text);border-bottom:1px solid var(--hair)}
.hero p a:hover,.chapter.surfaces .txt p a:hover,.panel p a:hover{border-bottom-color:var(--accent-text)}
.hero .cta-row{margin-top:6px}
.proof{margin-top:16px;font-size:17px;font-weight:500;color:var(--mute)}

/* grid plane */
.plane{
  position:absolute;left:50%;top:50%;width:min(1080px,70vw);height:min(670px,76vh);transform:translate(-50%,-50%);
  transform-origin:50% 50%;transform-style:preserve-3d;will-change:transform,opacity;
  border-radius:10px;overflow:hidden;
}
.plane .chrome{position:absolute;inset:0;border-radius:10px;background:var(--panel);border:1px solid rgba(167,163,255,.14);box-shadow:0 40px 120px rgba(37,31,71,.16);opacity:0;pointer-events:none}
.plane .dim{position:absolute;inset:0;background:#fff;pointer-events:none;z-index:5}


/* live demo embed (hero) */
.pb{position:relative;height:100%;background:#fff}
.pb iframe{width:100%;height:100%;border:0;display:block}
.demo-veil{
  position:absolute;inset:0;z-index:6;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;
  background:rgba(17,17,17,.4);opacity:1;transition:opacity .3s var(--ease-out);
}
.demo-veil span{color:#fff;font-size:38px;font-weight:500;letter-spacing:-.01em}
.demo-veil .btn{border:0;font-family:inherit;cursor:pointer;font-size:17px;padding:16px 32px}
.demo-veil.hide{opacity:0;pointer-events:none}

/* pinned problem */
.problem{position:relative;height:400vh}
.problem .stage{position:sticky;top:0;height:100vh;overflow:hidden}
.problem .wrap{position:relative;height:100%;display:grid;grid-template-columns:var(--col) 1fr;gap:80px;align-items:center}
.panels{position:relative;height:260px}
.panel{position:absolute;inset:0;opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease-out),transform .5s var(--ease-out)}
.panel.on{opacity:1;transform:none}
.panel h2{font-size:38px}
.rail{display:flex;flex-direction:row;gap:14px;margin-bottom:20px}
.rail i{width:22px;height:2px;background:rgba(var(--ink),0.156);border-radius:2px;transition:background .3s}
.rail i.on{background:var(--lime)}
.field{position:relative;height:520px}
.chip{
  position:absolute;left:0;top:0;display:flex;align-items:center;gap:8px;
  padding:7px 11px 7px 8px;border-radius:6px;background:var(--panel2);border:1px solid rgba(var(--ink),0.104);
  font-size:12px;color:var(--mute);white-space:nowrap;will-change:transform;transform:translate(-50%,-50%);
}
.chip .ico{width:14px;height:14px;border-radius:3px;background:rgba(var(--ink),0.160);flex:none;transition:background .4s}
.chip.s2 .ico{background:var(--chipcolor,#888)}
.chip.s3 .ico{background:var(--purple)}
.field svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.field line{stroke:var(--purple);stroke-width:1;opacity:0;transition:opacity .5s}
.field line.web{stroke:rgba(var(--ink),0.160)}
.engine{
  position:absolute;left:50%;top:50%;width:64px;height:64px;transform:translate(-50%,-50%) scale(.6);
  border-radius:50%;border:1px solid var(--purple);opacity:0;display:grid;place-items:center;
  background:rgba(199,190,255,.35);transition:opacity .5s,transform .6s var(--ease-out);
}
.engine:before{content:"";width:22px;height:22px;border-radius:50%;background:var(--purple);box-shadow:0 0 30px rgba(167,163,255,.5)}
.engine.on{opacity:1;transform:translate(-50%,-50%) scale(1)}
.engine span{position:absolute;top:calc(100% + 10px);font-size:11px;color:var(--lavender);font-family:"Geist Mono",monospace;white-space:nowrap}

/* sections */
.chapter{padding:14vh 0}
.card{border:1px solid rgba(var(--ink),0.091);border-radius:8px;padding:12px;background:var(--panel2)}
.surf:not(.track){display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.surf .card b{display:block;margin-bottom:6px;font-weight:500}
.surf .card span{color:var(--mute);font-size:12px;display:block}
.surf .card.rm{opacity:.5}
.surf .card .lb{display:inline-block;margin-top:8px;font-size:10px;padding:2px 6px;border-radius:3px;background:rgba(var(--ink),0.104);color:var(--mute);font-family:"Geist Mono",monospace}
.ico-mistral{width:14px;height:14px;display:inline-block;vertical-align:-1px;margin-left:7px;border-radius:2px}
.ico-openai{width:13px;height:13px;display:inline-block;vertical-align:-1px;margin-left:7px}
.ico-claude{width:14px;height:14px;display:inline-block;vertical-align:-1px;margin-left:7px}
.ico-claude line{stroke:#D97757;stroke-width:3.4;stroke-linecap:round}
.ico-word{width:13px;height:13px;display:inline-block;vertical-align:-1px;margin-left:7px}


/* surfaces: centered block, left-aligned text, sliding row */
.chapter.surfaces .wrap{display:block;text-align:left}
.chapter.surfaces .txt{position:static;max-width:800px;margin:0 auto 56px}
.chapter.surfaces .txt h2{font-size:32px}
.chapter.surfaces .txt p{max-width:none}
.slider{position:relative;overflow:hidden;width:100vw;margin-left:calc(50% - 50vw);
  -webkit-mask-image:linear-gradient(to right,transparent,#000 10%,#000 90%,transparent);
  mask-image:linear-gradient(to right,transparent,#000 10%,#000 90%,transparent)}
.slider .track{display:flex;gap:16px;width:max-content;animation:slide 60s linear infinite;will-change:transform}
.slider:hover .track{animation-play-state:paused}
.slider .card{width:300px;flex:none;text-align:left}
@keyframes slide{from{transform:translate3d(0,0,0)}to{transform:translate3d(calc(-50% - 8px),0,0)}}
@media (prefers-reduced-motion:reduce){.slider .track{animation:none;flex-wrap:wrap;width:auto;justify-content:center}.slider{mask-image:none;-webkit-mask-image:none}}


/* hybrid: dark from the engine section to the end of the engine chapter, light either side */

html.is-dark .btn{color:#111}




/* responsive */
@media (max-width:1100px){
  .hero .wrap{grid-template-columns:minmax(0,1fr) 360px;column-gap:32px}
  .hero h1{font-size:38px}
  .poster{width:360px}.poster .thumb{height:200px}
}
@media (max-width:980px){
  .hero{padding-top:110px}
  .hero .wrap{padding-top:0}
  .hero h1{font-size:40px;max-width:none}
  .hero p{font-size:16px}
  .poster{width:100%;max-width:420px;margin:0 0 28px}.poster .thumb{height:auto;aspect-ratio:420/236}
  .hero .poster{place-self:auto}
  .plane{width:100%;height:min(640px,80vh);min-height:0}
  .problem .wrap{grid-template-columns:1fr}
  .chapter .txt{max-width:none}
  .rail{display:none}
  .panel h2{font-size:30px}
  .chapter{padding:9vh 0}
  .chapter.surfaces .txt{margin-bottom:32px}
  .slider .card{width:260px}
  .example .wrap{grid-template-columns:1fr}
  .closing .trust{flex-direction:column;gap:6px}.closing .trust i{display:none}
  footer .wrap{grid-template-columns:1fr 1fr}
  footer .wrap>div:first-child{grid-column:1/-1}
  footer .small{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .wrap{padding:0 18px}
  .hero h1{font-size:34px}
  .hero .cta-row{flex-direction:column;align-items:stretch}
  .hero .cta-row .btn,.hero .cta-row .pill{width:100%;justify-content:center;text-align:center}
  .side-panel{grid-template-rows:auto}
  footer .wrap{grid-template-columns:1fr}
}

/* worked example */
.example{position:relative;height:320vh}
.example .stage{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;justify-content:center;gap:20px}
.ex-hd{text-align:center;max-width:640px;margin:0 auto}
.ex-hd h2{font-size:26px;margin-bottom:14px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:left}
.step{padding-top:9px;border-top:2px solid rgba(var(--ink),0.13);opacity:.4;transition:opacity .4s,border-color .4s;cursor:pointer}
.step b{display:block;font-weight:600;font-size:17px;margin-bottom:4px;transition:color .4s}
.step span{color:var(--mute);font-size:12px;line-height:1.4;display:block;max-width:none}
.step.on{opacity:1;border-top-color:var(--purple)}
.step.on b{color:var(--accent-text)}
.step:not(.on):hover{opacity:.7}
.step:focus-visible{outline:2px solid var(--lime);outline-offset:4px;border-radius:2px}
.example .wrap{display:grid;grid-template-columns:1fr 420px;gap:40px;align-items:stretch}
.doc{border:1px solid rgba(var(--ink),0.104);border-radius:10px;background:var(--panel);padding:24px 34px;font-size:13px;line-height:1.6;color:var(--mute);min-height:380px;position:relative}
.doc h3{font-size:13px;font-weight:500;line-height:1.6;letter-spacing:normal;color:var(--white);margin:18px 0 6px}
.doc h3:first-child{margin-top:0}
.doc .cl{padding:2px 4px;border-radius:3px;transition:background .4s,color .4s}
.doc .cl.hl{background:rgba(var(--ink),0.104);color:var(--white)}
.doc .cl.bad{background:rgba(220,38,38,.12);color:var(--redt2)}
.doc .cl.warn{background:rgba(217,119,6,.14);color:var(--ambt2)}
.doc .cl.ok{background:rgba(113,207,190,.14);color:var(--teal)}
.doc .fixed{display:none;color:var(--teal)}
.doc.st5 .cl.bad{display:none}
.doc.st5 .fixed{display:inline}
.doc .stamp{position:absolute;right:20px;top:20px;font-size:12px;color:var(--lavender);border:1px solid var(--hair);padding:5px 8px;border-radius:4px;opacity:0;transition:opacity .4s}
.doc .stamp.on{opacity:1}
.side-panel{display:grid;grid-template-rows:auto 1fr auto;gap:14px}
.cap{display:block;font-size:11px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--mute2);margin-bottom:10px}
.facts-card{border:1px solid var(--hair);border-radius:8px;background:var(--panel);padding:14px 16px}
.facts-card .row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:7px 0;border-top:1px solid rgba(var(--ink),0.058);font-size:13px;opacity:0;transform:translateY(6px);transition:opacity .4s,transform .4s}
.facts-card .row:first-of-type{border-top:0}
.facts-card .row.on{opacity:1;transform:none}
.facts-card .k{color:var(--mute)}
.facts-card .v{color:var(--white);font-weight:500;text-align:right}
.score{border:1px solid rgba(var(--ink),0.104);border-radius:8px;background:var(--panel);padding:16px}
.score .n{font-size:44px;font-weight:500;letter-spacing:-.03em;line-height:1;margin-top:2px}
.score .n small{font-size:14px;color:var(--mute2);letter-spacing:0}
.score .row{display:flex;justify-content:space-between;align-items:center;padding:9px 0;border-top:1px solid rgba(var(--ink),0.078);font-size:13px;opacity:0;transform:translateY(6px);transition:opacity .4s,transform .4s}
.score .row.on{opacity:1;transform:none}
.score .row .d{font-weight:500;opacity:0;transition:opacity .3s}
.score .row .d.on{opacity:1}
.score .row .d.neg{color:var(--redt)}
.score .row .d.pos{color:var(--teal)}
.recline{border:1px solid rgba(var(--ink),0.104);border-radius:8px;background:var(--panel);padding:14px 16px;opacity:0;transition:opacity .5s}
.recline.on{opacity:1}
.recline .txt{color:var(--mute);font-size:13px;line-height:1.6}
.recline b{color:var(--white);font-weight:500}
.illus{font-size:11px;color:var(--mute2);margin-top:14px}


/* contract management capabilities */
.capabilities .txt{max-width:800px;margin:0 auto 40px}
.capabilities .txt h2{font-size:32px}
.capabilities .txt p{max-width:600px}
.caps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.caps-grid .card{display:block;transition:border-color .2s var(--ease-out)}
.caps-grid .card:hover{border-color:var(--purple)}
.caps-grid .card b{display:block;margin-bottom:6px;font-weight:500}
.caps-grid .card span{color:var(--mute);font-size:12px;display:block}
@media (max-width:980px){
  .caps-grid{grid-template-columns:1fr 1fr;gap:16px}
}
@media (max-width:520px){
  .caps-grid{grid-template-columns:1fr}
}

/* closing */
.closing{position:relative;padding:30vh 0 24vh;text-align:center;overflow:hidden}
.closing .glow{position:absolute;inset:0;background:var(--glow);pointer-events:none}
.closing .grain{position:absolute;inset:0;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='.9'/%3E%3C/svg%3E");pointer-events:none}
.closing .wm{position:absolute;left:50%;top:50%;transform:translate(-50%,-56%);font-family:"League Gothic",Impact,sans-serif;font-size:min(24vw,320px);line-height:1;letter-spacing:.02em;text-transform:uppercase;color:var(--purple);opacity:.14;pointer-events:none;user-select:none}
.closing h2{position:relative;font-size:44px;max-width:620px;margin:0 auto 26px}
.closing .cta-row{position:relative;justify-content:center}
.closing .btn,.closing .pill{position:relative}
.closing .trust{position:relative;margin-top:34px;display:flex;justify-content:center;align-items:center;gap:14px;font-family:"Geist Mono",ui-monospace,monospace;font-size:12px;color:var(--mute)}
.closing .trust i{width:3px;height:3px;border-radius:50%;background:var(--mute2)}

@media (max-width:980px){
  .wrap{padding:0 22px}
  .hero h1{font-size:36px}
  .hero .wrap{padding-top:0}
  .hero .wrap{display:block}
  .poster{position:static;width:100%;max-width:420px;margin-bottom:24px}
  .hero .poster{place-self:auto}
  .problem .wrap,.example .wrap{grid-template-columns:1fr;gap:30px}
  .problem{height:auto}.problem .stage{position:static;height:auto;padding:80px 0}
  .field{display:none}.panels{height:auto}.panel{position:static;opacity:1;transform:none;margin-bottom:60px}
  .unfold{height:auto}.unfold .stage{position:static;height:auto;perspective:none;padding:0}.plane .chrome{opacity:1}
  .plane{position:static;width:100%;height:min(640px,80vh);transform:none!important;opacity:1!important}
  .plane .dim{display:none}
  .example{height:auto}.example .stage{position:static;height:auto;padding:60px 0}
  .steps{grid-template-columns:1fr 1fr;gap:16px}
  .surf:not(.track){grid-template-columns:1fr}
  .closing .trust{flex-wrap:wrap;gap:8px 14px}
  .doc{padding:20px;min-height:0;font-size:12.5px}
  .doc .stamp{position:static;display:inline-block;margin-bottom:12px}
  .closing{padding:18vh 0 14vh}
  .closing .wm{font-size:44vw}
  .closing h2{font-size:30px}
}
@media (max-width:520px){
  .steps{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  .plane{transform:none!important;opacity:1!important}.plane .dim{display:none}.plane .chrome{opacity:1}
  .unfold{height:auto}.unfold .stage{position:static;height:auto}
  .panel{position:static;opacity:1;transform:none;margin-bottom:40px}.problem{height:auto}.problem .stage{position:static;height:auto;padding:80px 0}
  .example{height:auto}.example .stage{position:static;height:auto;padding:80px 0}
  .facts-card div,.score .row,.recline,.doc .stamp,.engine{opacity:1;transform:none}
}