/* ── Lower homepage: one framed column with hairline rules and corner ticks. ── */
.lx{background:var(--paper);color:var(--ink);font:16px/1.5 var(--sans)}
.lx-section{position:relative}
.lx-frame{position:relative;width:min(1120px,calc(100% - 48px));margin:0 auto;padding:64px 56px 72px;border:1px solid var(--line);border-bottom:0}
.lx-section:last-child .lx-frame{border-bottom:1px solid var(--line)}
.lx-frame::before,.lx-frame::after{content:"";position:absolute;top:-1px;width:11px;height:11px;border-top:1px solid var(--ink);pointer-events:none}
.lx-frame::before{left:-1px;border-left:1px solid var(--ink)}
.lx-frame::after{right:-1px;border-right:1px solid var(--ink)}

.lx-head{display:flex;align-items:baseline;gap:14px;margin:0 0 28px;font:500 12px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.lx-num{font:600 12px/1.4 var(--mono);letter-spacing:.04em;color:var(--ink)}
.lx-split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px;align-items:start}
.lx h2{font-family:var(--mono);font-size:clamp(28px,3.2vw,40px);font-weight:700;line-height:1.14;letter-spacing:-.01em;margin:0;text-wrap:balance}
.lx-copy p{font-size:17px;line-height:1.62;margin:0 0 16px;max-width:60ch}
.lx-copy .lx-muted{color:var(--muted)}
.lx .text-action{display:inline-flex;align-items:center;min-height:44px;margin-top:8px}

/* Logo marquee: the labs whose models share the benchmark chart. */
.lx-marquee{margin:48px -56px -72px;border-top:1px solid var(--line);padding:22px 0 26px}
.lx-marquee-title{margin:0 56px 14px;font:500 12px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.lx-track{display:flex;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.lx-logos{display:flex;flex-shrink:0;gap:52px;margin:0;padding:0 52px 0 0;list-style:none;animation:lx-marquee 38s linear infinite}
.lx-track:hover .lx-logos{animation-play-state:paused}
.lx-logos li{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;font:600 17px/1 var(--sans);color:var(--ink)}
.lx-logos img{width:20px;height:20px;object-fit:contain}
.lx-logos img.lx-wordmark{width:auto;margin-right:-10px;transform:translateY(-3px)}
@keyframes lx-marquee{to{transform:translateX(-100%)}}

/* How it works: three numbered steps that take turns, beside an illustrative panel. */
.lx-how{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);margin:48px 0 28px;border:1px solid var(--line)}
/* The follow-up link sits close under the panel and closes the section without a tall tail. */
.lx-product .lx-how{margin-bottom:12px}
.lx-product .lx-frame{padding-bottom:36px}
.lx-steps{border-right:1px solid var(--line)}
.lx-step{position:relative;padding:22px 26px 24px;border-bottom:1px solid var(--line);transition:background-color .3s}
.lx-step:last-child{border-bottom:0}
.lx-step h3{margin:0}
.lx-step-tab{display:flex;align-items:baseline;gap:14px;width:100%;margin:0;padding:0;border:0;background:none;font:700 16px/1.35 var(--mono);color:var(--ink);text-align:left;cursor:pointer}
.lx-step p{margin:10px 0 0 32px;font-size:15px;line-height:1.55;color:var(--muted)}
.lx-progress{position:absolute;left:0;bottom:-1px;height:2px;width:0;background:var(--orange)}
.lx-how.is-live .lx-step-tab{color:var(--muted)}
.lx-how.is-live .lx-step:hover .lx-step-tab,.lx-how.is-live .lx-step.is-on .lx-step-tab{color:var(--ink)}
.lx-how.is-live .lx-step.is-on{background:var(--soft)}
.lx-how.is-live .lx-step.is-on p{color:var(--ink)}
.lx-how.is-live .lx-step.is-on .lx-progress{animation:lx-fill 6.5s linear forwards}
.lx-how.is-live.is-held .lx-step.is-on .lx-progress{animation-play-state:paused}
.lx-how.is-live.is-still .lx-step.is-on .lx-progress{animation:none;width:100%}
@keyframes lx-fill{to{width:100%}}

.lx-demo{position:relative;display:grid;align-items:center;min-height:300px;padding:40px 36px;background:var(--ink);color:var(--soft);font:400 13.5px/1.5 var(--mono);overflow:hidden}
.lx-demo-tag{position:absolute;top:14px;right:16px;margin:0;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--strong-line)}
.lx-scene{grid-area:1/1;opacity:0;transform:translateY(8px);transition:opacity .4s,transform .4s;pointer-events:none}
.lx-how[data-step="0"] .lx-scene-0,.lx-how[data-step="1"] .lx-scene-1,.lx-how[data-step="2"] .lx-scene-2{opacity:1;transform:none}
.lx-line{margin:0 0 18px;white-space:nowrap}
.lx-dim{color:var(--strong-line)}
.lx-ok{color:var(--orange)}
.lx-bad{color:var(--strong-line)}

.lx-engines{margin:0;padding:0;list-style:none}
.lx-engines li{display:grid;grid-template-columns:78px minmax(0,1fr) 44px;align-items:center;gap:14px;margin:0 0 14px;color:var(--strong-line)}
.lx-engines i{position:relative;height:10px;background:rgba(255,255,255,.12)}
.lx-engines i::after{content:"";position:absolute;inset:0 auto 0 0;width:0;background:rgba(255,255,255,.34);transition:width 1.1s cubic-bezier(.2,.7,.2,1)}
.lx-engines .lx-key{margin-bottom:8px;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase}
.lx-engines .lx-kept{color:var(--soft)}
.lx-engines .lx-kept i::after{background:var(--orange)}
.lx-engines b{font-weight:600;color:var(--orange);opacity:0;transition:opacity .3s 1.3s}
.lx-how[data-step="0"] .lx-engines i::after{width:var(--w)}
.lx-how[data-step="0"] .lx-engines li:nth-child(3) i::after{transition-delay:.12s}
.lx-how[data-step="0"] .lx-engines li:nth-child(4) i::after{transition-delay:.24s}
.lx-how[data-step="0"] .lx-engines li:nth-child(5) i::after{transition-delay:.36s}
.lx-how[data-step="0"] .lx-engines b{opacity:1}

.lx-mid{position:relative;height:1px;margin:0 0 18px;background:linear-gradient(90deg,rgba(255,255,255,.24) 50%,transparent 0) 0 0/8px 1px}
.lx-pulse{position:absolute;top:-4px;left:0;width:9px;height:9px;border-radius:50%;background:var(--orange);animation:lx-travel 1.8s ease-in-out infinite alternate;animation-play-state:paused}
.lx-how[data-step="1"] .lx-pulse{animation-play-state:running}
@keyframes lx-travel{to{left:calc(100% - 9px)}}

.lx-row{display:grid;grid-template-columns:78px auto 1fr;align-items:center;gap:18px}
.lx-dots{display:inline-flex;gap:12px}
.lx-dots i{width:11px;height:11px;border-radius:50%;background:var(--orange);transform:scale(0);transition:transform .3s}
.lx-dots.lx-turns i{display:inline-flex;justify-content:center;background:none;border-radius:0;transform:none;font:inherit;font-style:normal;line-height:11px}
.lx-router .lx-dots i{background:var(--soft)}
.lx-router .lx-dots .lx-swap{background:transparent;box-shadow:inset 0 0 0 1.5px var(--strong-line)}
.lx-how[data-step="2"] .lx-dots i{transform:none}
.lx-how[data-step="2"] .lx-dots i:nth-child(2){transition-delay:.12s}
.lx-how[data-step="2"] .lx-dots i:nth-child(3){transition-delay:.24s}
.lx-how[data-step="2"] .lx-dots i:nth-child(4){transition-delay:.36s}
.lx-how[data-step="2"] .lx-dots i:nth-child(5){transition-delay:.48s}

/* Who: the orange break, on the same frame. */
.lx-who{background:var(--orange)}
.lx-who .lx-frame{border-color:rgba(17,17,17,.28)}
.lx-who .lx-head,.lx-who .lx-copy p{color:var(--ink)}
.lx-who .text-action{color:var(--ink);text-decoration-color:var(--ink)}

.lx-faq details{border-top:1px solid var(--line)}
.lx-faq details:last-of-type{border-bottom:1px solid var(--line)}
.lx-faq summary{position:relative;display:block;padding:18px 40px 18px 0;font:600 17px/1.4 var(--sans);cursor:pointer;list-style:none}
.lx-faq summary::-webkit-details-marker{display:none}
.lx-faq summary::after{content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);font:400 22px/1 var(--mono);color:var(--muted);transition:transform .2s}
.lx-faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.lx-faq details p{margin:0 0 20px;font-size:16px;line-height:1.6;color:var(--muted);max-width:62ch}
.lx-faq .text-action{margin-top:14px}

.lx-close .lx-frame{padding:104px 56px 112px;text-align:center;background:radial-gradient(760px 300px at 50% 115%,rgba(255,86,63,.24),rgba(255,86,63,0) 72%)}
.lx-close h2{font-size:clamp(32px,4.6vw,56px)}
.lx-close p{margin:16px 0 0;font-size:18px;color:var(--muted)}
.lx-ctas{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:32px}

/* Sections rise in once as they scroll into view. */
.lx.lx-live .lx-reveal .lx-frame>*{transition:opacity .7s,transform .7s cubic-bezier(.2,.7,.2,1)}
.lx.lx-live .lx-reveal:not(.in) .lx-frame>*{opacity:0;transform:translateY(18px)}
.lx.lx-live .lx-reveal .lx-frame>:nth-child(2){transition-delay:.08s}
.lx.lx-live .lx-reveal .lx-frame>:nth-child(3){transition-delay:.16s}
.lx.lx-live .lx-reveal .lx-frame>:nth-child(4){transition-delay:.24s}

@media(max-width:900px){
  .lx-split,.lx-how{grid-template-columns:1fr}
  .lx-split{gap:18px}
  /* The demo sits right under the step it illustrates. */
  .lx-steps{display:contents}
  .lx-step{order:0;border-bottom:1px solid var(--line)}
  .lx-step:nth-child(2){order:2}
  .lx-step:nth-child(3){order:4;border-bottom:0}
  .lx-demo{order:1}
  .lx-how[data-step="1"] .lx-demo{order:3}
  .lx-how[data-step="2"] .lx-demo{order:5}
  .lx-how[data-step="0"] .lx-step:nth-child(1),.lx-how[data-step="1"] .lx-step:nth-child(2){border-bottom:0}
}
@media(max-width:600px){
  .lx-frame{width:calc(100% - 24px);padding:44px 20px 52px}
  .lx-product .lx-frame{padding-bottom:28px}
  .lx-marquee{margin:36px -20px -52px}
  .lx-marquee-title{margin:0 20px 12px}
  .lx-copy p{font-size:16px}
  .lx-step{padding:18px 18px 20px}
  .lx-step p{margin-left:0}
  .lx-demo{min-height:230px;padding:36px 18px 24px;font-size:12px}
  .lx-line{white-space:normal}
  .lx-engines li,.lx-row{grid-template-columns:64px minmax(0,1fr) 40px;gap:10px}
  .lx-row{grid-template-columns:52px auto 1fr}
  .lx-dots{gap:8px}
  .lx-close .lx-frame{padding:72px 20px 80px}
  .lx-ctas .btn{flex:1 1 100%;display:flex;justify-content:center}
}
@media(prefers-reduced-motion:reduce){
  .lx-logos{animation:none}
  .lx-track{flex-wrap:wrap;-webkit-mask-image:none;mask-image:none}
  .lx-logos{flex-wrap:wrap;gap:18px 32px;padding:0 56px}
  .lx-logos[aria-hidden]{display:none}
  .lx-pulse{animation:none;left:50%}
  .lx *,.lx *::before,.lx *::after{transition:none!important}
}
@media(prefers-reduced-motion:reduce) and (max-width:600px){.lx-logos{padding:0 20px}}