@layer legacy{.arc-product-container{width:min(1160px,100% - 48px);margin-inline:auto}.arc-product-hero{background:var(--surface-inset);overflow:hidden}.arc-product-hero__grid{padding:var(--hero-top-pad) 0 56px;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);align-items:flex-start;gap:70px;display:grid}.arc-product-hero h1{font-family:var(--font-display);font-size:var(--hero-h1-size);line-height:var(--hero-h1-line-height);letter-spacing:var(--hero-h1-letter-spacing);color:var(--accent);margin:var(--hero-eyebrow-gap) 0 0;max-width:var(--hero-h1-max-width);text-wrap:balance}.arc-product-lede{max-width:650px;color:var(--accent);margin:var(--hero-lede-gap) 0 0;font-size:18px;line-height:1.7}.arc-product-actions{margin-top:var(--hero-actions-gap);flex-wrap:wrap;align-items:center;gap:22px;display:flex}.arc-text-link{color:var(--accent);align-items:center;gap:8px;font-size:13px;font-weight:700;display:inline-flex}.arc-product-diagram{border:1px solid var(--border-subtle);background:var(--surface-inset);min-height:360px;box-shadow:none;position:relative;overflow:hidden}.arc-product-diagram:before,.arc-product-diagram:after{content:"";background:var(--surface-inset);position:absolute}.arc-product-diagram:before{height:1px;inset:50% 0 auto}.arc-product-diagram:after{width:1px;inset:0 auto 0 50%}.arc-diagram-ring{border:1px solid var(--border-subtle);border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)rotate(-18deg)}.arc-diagram-ring--one{width:270px;height:180px}.arc-diagram-ring--two{border-color:var(--border-subtle);width:190px;height:290px;transform:translate(-50%,-50%)rotate(40deg)}.arc-diagram-core{text-align:center;background:var(--surface-inset);width:126px;height:126px;color:var(--text-primary);box-shadow:none;border-radius:50%;place-content:center;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.arc-diagram-core span{font:600 24px var(--font-display);letter-spacing:.08em}.arc-diagram-core small{color:var(--accent);margin-top:5px;font-size:10px}.arc-diagram-note{font:11px var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--accent);background:var(--surface-card-solid);border:1px solid var(--border-subtle);padding:9px 12px;position:absolute}.arc-diagram-note span{color:var(--accent);margin-right:7px}.arc-diagram-note--top{top:32px;right:24px}.arc-diagram-note--bottom{bottom:32px;left:24px}.arc-product-section{background:var(--surface-card-solid);color:var(--accent);padding:92px 0}.arc-product-section--tint{background:var(--surface-card-solid)}.arc-product-section--dark{background:var(--surface-inset);color:var(--text-primary)}.arc-product-section h2{font:500 clamp(32px,4vw,54px)/1.08 var(--font-display);letter-spacing:-.03em;text-wrap:balance;max-width:16ch;margin:16px 0 0}.arc-product-section p{color:var(--accent);max-width:66ch;line-height:1.7}.arc-product-section--dark p{color:var(--text-secondary)}.arc-section-intro{justify-content:space-between;align-items:end;gap:40px;margin-bottom:42px;display:flex}.arc-section-intro>p{max-width:400px;margin:0}.arc-evidence-grid{grid-template-columns:1.1fr .9fr;gap:20px;display:grid}.arc-evidence-card{border:1px solid var(--border-subtle);background:var(--surface-card-solid);padding:30px}.arc-evidence-card--accent{background:var(--surface-inset);border-color:var(--border-subtle)}.arc-evidence-card h3{font:500 22px/1.2 var(--font-display);margin:0 0 12px}.arc-evidence-card p{margin:0;font-size:14px}.arc-list{border-top:1px solid var(--border-subtle);margin:20px 0 0;padding:0;list-style:none}.arc-list li{border-bottom:1px solid var(--border-subtle);color:var(--accent);gap:12px;padding:13px 0;font-size:14px;display:flex}.arc-list svg{color:var(--accent);flex:none;margin-top:2px}.arc-boundary-grid,.arc-framework-grid{border-top:1px solid var(--border-subtle);border-left:1px solid var(--border-subtle);grid-template-columns:repeat(3,1fr);margin-top:42px;display:grid}.arc-boundary-grid article,.arc-framework-grid article{border-right:1px solid var(--border-subtle);border-bottom:1px solid var(--border-subtle);padding:26px}.arc-boundary-grid span,.arc-framework-grid span{font:11px var(--font-mono);color:var(--accent)}.arc-boundary-grid h3,.arc-framework-grid h3{font:500 18px var(--font-display);margin:22px 0 8px}.arc-boundary-grid p,.arc-framework-grid p{margin:0;font-size:14px}.arc-steps{border-block:1px solid var(--border-subtle);grid-template-columns:repeat(5,1fr);margin-top:42px;display:grid}.arc-steps div{border-right:1px solid var(--border-subtle);padding:22px 16px}.arc-steps div:last-child{border-right:0}.arc-steps span{font:11px var(--font-mono);color:var(--accent)}.arc-steps b{font:500 16px var(--font-display);margin-top:18px;display:block}.arc-cta{border:1px solid var(--border-subtle);background:var(--surface-inset);justify-content:space-between;align-items:center;gap:30px;padding:38px;display:flex}.arc-cta h2{max-width:18ch}.arc-cta p{margin-top:16px}.arc-cta .hl-btn{flex:none}.arc-cta h2{color:var(--text-primary)}.arc-cta p{color:var(--text-secondary)!important}@media (width<=820px){.arc-product-hero__grid{grid-template-columns:1fr;gap:42px}.arc-product-diagram{min-height:320px}.arc-evidence-grid{grid-template-columns:1fr}.arc-boundary-grid,.arc-framework-grid{grid-template-columns:1fr 1fr}.arc-steps{grid-template-columns:repeat(3,1fr)}}@media (width<=600px){.arc-product-container{width:calc(100% - 32px)}.arc-product-hero__grid{padding:32px 0 40px}.arc-product-lede{font-size:16px}.arc-product-section{padding:64px 0}.arc-section-intro{display:block}.arc-section-intro>p{margin-top:16px}.arc-boundary-grid,.arc-framework-grid{grid-template-columns:1fr}.arc-steps{grid-template-columns:1fr 1fr}.arc-steps div:nth-child(2n){border-right:0}.arc-steps div:last-child{grid-column:span 2}.arc-cta{padding:26px;display:block}.arc-cta .hl-btn{width:100%;margin-top:24px}.arc-diagram-note--top{right:12px}.arc-diagram-note--bottom{left:12px}}}