:root{--navy:#062d8a;--purple:#9a51e6;--ink:#222;--rule:#d6d6d6}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:300;color:var(--ink);background:#fff;line-height:1.5;font-size:17px}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:1100px;margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:"Jost",Futura,"Century Gothic",sans-serif;font-weight:500;color:var(--navy);line-height:1.15}

/* header */
header{background:#fff}
.bar{display:flex;align-items:center;justify-content:space-between;height:116px}
.bar img{height:74px;width:auto}
nav ul{list-style:none;display:flex;gap:20px}
nav a{text-decoration:none;color:var(--purple);font-size:15px;font-weight:400}
nav a:hover,nav a[aria-current=page]{text-decoration:underline;text-underline-offset:4px}
.menu-btn{display:none;background:none;border:0;font-size:28px;color:var(--navy);cursor:pointer}

/* hero */
.hero{background:#3a58a8 url(img/hero-helix.svg) center/cover no-repeat;color:#fff;text-align:center;padding:150px 24px 160px}
.hero h1{color:#fff;font-size:clamp(32px,5vw,52px);font-weight:400;margin-bottom:34px}
.hero p{font-size:clamp(18px,2.1vw,23px);max-width:760px;margin:0 auto;font-weight:400}

/* clients */
.clients{padding:64px 0 56px;overflow:hidden}
.track{display:flex;gap:72px;align-items:center;width:max-content;animation:scroll 40s linear infinite}
.clients:hover .track{animation-play-state:paused}
.track img{height:40px;width:150px;object-fit:contain}
@keyframes scroll{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.track{animation:none;flex-wrap:wrap;justify-content:center;width:auto;padding:0 24px;gap:40px}.track .dup{display:none}}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;padding:56px 24px 96px}
.contact iframe{width:100%;height:260px;border:0}
.contact h2{font-size:32px;margin:4px 0 26px}
.contact p{margin-bottom:4px}
.contact .gap{margin-top:22px}

/* text pages */
.page{max-width:880px;padding-top:56px;padding-bottom:72px}
.page h1{font-size:32px;margin-bottom:28px}
.page h3{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:700;font-size:20px;margin:30px 0 2px}
.page p{margin-bottom:22px}
.page ul{margin:0 0 0 32px}

footer{border-top:1px solid var(--rule);text-align:center;padding:56px 24px 72px;font-size:14px}

@media (max-width:760px){
  .bar{height:88px}.bar img{height:56px}
  .menu-btn{display:block}
  nav ul{display:none;position:absolute;right:16px;top:80px;flex-direction:column;gap:14px;background:#fff;padding:18px 24px;box-shadow:0 6px 20px rgba(0,0,0,.12);z-index:5}
  nav.open ul{display:flex}
  .hero{padding:96px 20px 104px}
  .contact{grid-template-columns:1fr;gap:32px}
}