:root{--bg:#101110;--ink:#f4f2e9;--muted:#b6b7af;--ivory:#eeeadd;--line:#f0ecd52d;--orange:#ff7a1a;--dark-line:#24282035;--max:1440px;font-family:Arial,Helvetica,sans-serif;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.6}body.dialog-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,summary,select{touch-action:manipulation}button{color:inherit;cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex="0"]:focus-visible{outline:2px solid var(--orange);outline-offset:5px}::selection{background:#ff7a1a;color:#101110}.skip{position:fixed;top:-90px;left:20px;background:var(--orange);color:#111;padding:12px;z-index:100}.skip:focus{top:10px}.site-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:96px;padding:20px max(4.5%,calc((100% - 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@media(min-width:1800px){.problem-hero{padding-top:85px}h1{margin-bottom:65px}.hero-bottom{padding-top:42px}.hero-actions{margin-top:36px}}
@media(max-width:1180px){.brand>span{display:none}.site-header nav{gap:20px}.hero-bottom,.split{gap:42px}.hero-note p{font-size:22px}.contact .split{gap:50px}.method-grid{gap:23px}.method-grid h3{font-size:22px}}
@media(max-width:850px){html{scroll-padding-top:90px}.site-header{min-height:82px;padding:16px 6%;flex-wrap:wrap}.brand img{width:135px}.menu-button{display:block}.site-header nav{display:none;width:100%;padding:14px 0;flex-direction:column;align-items:stretch;gap:4px}.site-header nav.open{display:flex}.site-header nav a{padding:10px 0;font-size:15px}.site-header nav .nav-contact{margin-top:10px;padding:12px 14px}.hero-content>.eyebrow{font-size:9px;letter-spacing:1.4px}.problem-hero{padding:44px 6% 22px;min-height:auto}.hero-bottom{grid-template-columns:1fr;gap:15px;padding-top:24px}.hero-note{max-width:none;margin-bottom:30px;padding-left:18px}.hero-note p{font-size:21px;max-width:480px}.hero-caption span:last-child{display:none}.hero-caption{font-size:9px}.hero-lead{font-size:25px}h1{margin-bottom:35px;font-size:clamp(40px,7.5vw,65px)}h2{font-size:42px}.section{padding:58px 6%}.section-top{margin-bottom:32px}.section-top .index{display:none}.split{grid-template-columns:1fr;gap:20px}.prose .lead,.lead{font-size:21px}.three-principles{gap:25px;margin-top:32px}.three-principles h3{font-size:22px}.offer-grid{gap:30px}.offer h3{font-size:27px}.result-note{grid-template-columns:1fr;gap:15px}.platform-explorer{grid-template-columns:1fr;gap:30px}.platform-tabs{display:grid;grid-template-columns:repeat(3,1fr)}.platform-tabs button{padding:18px 10px;font-size:13px;border-left:0;border-bottom:2px solid var(--line)}.platform-tabs button[aria-selected=true]{border-bottom-color:var(--orange)}.method-grid{grid-template-columns:1fr 1fr;gap:30px}.reference-strip{grid-template-columns:1fr;gap:25px}.contact .split{gap:35px}.contact form{max-width:600px}footer{padding:30px 6%;flex-wrap:wrap;gap:25px}footer p{order:3;width:100%}dialog#brief-dialog{padding:20px}.dialog-head h2{font-size:23px}}
@media(max-width:550px){h1{font-size:43px;letter-spacing:-2px;line-height:1.1}h1 br{display:none}h1 em:before{content:' '}.hero-lead{font-size:23px}.hero-description{font-size:15px}.hero-actions{gap:20px}.button{font-size:13px;padding:15px 18px}.hero-note p{font-size:20px}.section{padding-block:48px}h2{font-size:36px;letter-spacing:-1.5px}h2 br{display:none}h2 em:before{content:' '}.three-principles{grid-template-columns:1fr;gap:25px}.three-principles h3{margin-top:12px}.offer-grid{grid-template-columns:1fr;gap:35px}.offer h3{font-size:28px}.section-intro{font-size:16px}.platform-tabs{grid-template-columns:1fr}.platform-tabs button{text-align:left;padding:15px;font-size:14px;border-bottom:1px solid var(--line);border-left:2px solid transparent}.platform-tabs button[aria-selected=true]{border-left-color:var(--orange);border-bottom-color:var(--line)}#platform-panel h3{font-size:29px}.method-grid{grid-template-columns:1fr;gap:25px}.method-grid h3{margin-top:12px}footer>a:last-child{font-size:12px;overflow-wrap:anywhere}footer p{font-size:12px}.hero-caption{letter-spacing:.7px}.eyebrow{font-size:10px;letter-spacing:1.5px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

.site-header #menu{display:none}@media(max-width:850px){.site-header #menu{display:block}}

/* Partner logos in the version 2 identity. */
.site-header .brand .header-partner-logo{width:135px;height:auto;border-left:1px solid var(--line);padding-left:24px;box-sizing:content-box}
.footer-partners{display:flex;align-items:center;gap:26px;flex-shrink:0}
.footer-partner{border-left:1px solid var(--line);padding-left:26px;display:flex;align-items:center}
.footer-partner>img{display:block;width:135px;height:auto;object-fit:contain}
@media(max-width:1100px){.site-header{flex-wrap:wrap}.site-header #menu{display:block}.site-header nav{display:none;width:100%;padding:14px 0;flex-direction:column;align-items:stretch;gap:4px}.site-header nav.open{display:flex}.site-header nav a{padding:10px 0;font-size:15px}.site-header nav .nav-contact{margin-top:10px;padding:12px 14px}}
@media(max-width:550px){.site-header{gap:12px}.site-header .brand{gap:12px}.site-header .brand>img{width:90px}.site-header .brand .header-partner-logo{width:90px;padding-left:12px}.site-header #menu{font-size:13px;padding:8px 10px}.footer-partners{width:100%;gap:22px}.footer-partner{padding-left:22px}.footer-partner>img{width:120px}}

.arc-contact{border-top:1px solid var(--line);padding-top:22px;margin:28px 0}.arc-contact>p{font-size:21px;margin-bottom:10px}.arc-contact>span{display:block;font-size:15px;color:var(--muted);max-width:480px;margin-bottom:18px}