:root{
  --ink:#182230;--muted:#5e6874;--line:#dfe4ea;--paper:#fff;--soft:#f6f8fa;
  --navy:#17365d;--navy2:#274f79;--green:#2d6349;--max:1120px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
color:var(--ink);background:var(--paper);line-height:1.62}
a{color:var(--navy);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:auto;padding:0 24px}
header{border-bottom:1px solid var(--line);background:rgba(255,255,255,.97);position:sticky;top:0;z-index:30}
.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-weight:850;font-size:20px;letter-spacing:-.4px;color:var(--ink)}
.brand span{color:var(--navy)}
nav{display:flex;gap:18px;align-items:center;font-size:14px}
nav a{color:#354150}nav a.cta{background:var(--navy);color:white;padding:9px 14px;border-radius:7px}
.hero{padding:80px 0 66px;background:linear-gradient(180deg,#fff,#f7f9fb)}
.eyebrow{text-transform:uppercase;letter-spacing:1.35px;font-weight:800;font-size:12px;color:var(--navy)}
h1{font-size:clamp(38px,6vw,64px);line-height:1.045;letter-spacing:-2px;max-width:940px;margin:12px 0 22px}
h2{font-size:34px;line-height:1.17;letter-spacing:-1px;margin:0 0 14px}
h3{font-size:20px;line-height:1.3;margin:0 0 8px}
h4{margin:0 0 6px}
.lead{font-size:20px;max-width:800px;color:var(--muted)}
.intro{max-width:800px;color:var(--muted);font-size:17px;margin:0 0 30px}
section{padding:66px 0}section.alt{background:var(--soft)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-block;background:var(--navy);color:white;padding:11px 17px;border-radius:7px;font-weight:750;border:1px solid var(--navy)}
.btn:hover{text-decoration:none;background:var(--navy2)}
.btn.secondary{background:white;color:var(--navy);border-color:var(--line)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.card{border:1px solid var(--line);border-radius:10px;padding:23px;background:#fff}
.card p{color:var(--muted);margin:0}
.card ul{padding-left:19px;color:var(--muted)}
.tag{font-size:11px;text-transform:uppercase;letter-spacing:.9px;font-weight:800;color:var(--muted);margin-bottom:7px}
.notice{border-left:4px solid var(--green);background:#f2f8f4;padding:16px 18px;margin:24px 0}
.callout{border:1px solid var(--line);background:#fff;padding:22px;border-radius:10px}
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px}
.step{border-top:3px solid var(--navy);padding-top:14px}
.step:before{counter-increment:step;content:counter(step);display:block;font-size:27px;font-weight:900;color:var(--navy)}
table{width:100%;border-collapse:collapse;background:white;border:1px solid var(--line)}
th,td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#f1f4f7}
.faq{max-width:880px}.faq details{border-top:1px solid var(--line);padding:18px 0}
.faq summary{font-weight:800;cursor:pointer;font-size:18px}.faq p{color:var(--muted)}
.breadcrumb{font-size:13px;color:var(--muted);padding-top:20px}.breadcrumb a{color:var(--muted)}
.form{max-width:760px}label{display:block;font-weight:700;margin:14px 0 6px}
input,textarea{width:100%;padding:12px;border:1px solid #bcc6d0;border-radius:7px;font:inherit}
textarea{min-height:155px}button{cursor:pointer}
.placeholder{border:2px dashed #bcc5cf;background:#fafbfc;padding:24px;border-radius:9px;text-align:center}
.meta{font-size:13px;color:var(--muted);margin-top:-6px}
.article{max-width:850px}.article h2{margin-top:40px;font-size:30px}.article h3{margin-top:28px}
.article p,.article li{font-size:17px;color:#344150}
.article code{background:#f1f3f5;padding:2px 5px;border-radius:4px}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
footer{border-top:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:13px}
.footergrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.small{font-size:13px;color:var(--muted)}
@media(max-width:900px){
 .grid,.grid.two,.steps,.related,.footergrid{grid-template-columns:1fr}
 nav a:not(.cta){display:none}.hero{padding-top:58px}section{padding:50px 0}
}

@media (min-width:901px) and (max-width:1120px){.steps{grid-template-columns:repeat(3,minmax(0,1fr))}}

/* Video playback navigation: controls stay available even in site-controlled full-screen view. */
.demo-player{position:relative;overflow:hidden;border-radius:9px;background:#122337;isolation:isolate;aspect-ratio:16/9}
.demo-player__video{display:block;width:100%;height:100%;object-fit:contain;background:#122337}
.demo-player__back,.demo-player__expand{position:absolute;top:12px;z-index:5;border:1px solid rgba(255,255,255,.45);border-radius:7px;background:rgba(10,23,38,.91);color:#fff;font-family:inherit;font-weight:700;font-size:13px;line-height:1.3;padding:9px 12px;cursor:pointer;box-shadow:0 2px 9px rgba(0,0,0,.3)}
.demo-player__back{left:12px}.demo-player__expand{right:12px}
.demo-player__back:hover,.demo-player__expand:hover,.demo-player__back:focus-visible,.demo-player__expand:focus-visible{background:#274f79;outline:2px solid #fff;outline-offset:2px}
.demo-player__open{display:inline-block;margin:10px 0 8px;font-size:13px;font-weight:750;text-decoration:underline;text-underline-offset:2px}
.demo-player:fullscreen{border-radius:0;display:flex;align-items:center;justify-content:center;background:#050c17;aspect-ratio:auto}
.demo-player:fullscreen .demo-player__video{width:100%;height:100%;object-fit:contain}
.demo-player:fullscreen .demo-player__back,.demo-player:fullscreen .demo-player__expand{top:20px}
.watch-page{padding:42px 0 80px}.watch-page h1{max-width:1100px;font-size:clamp(30px,4.8vw,50px)}
.watch-page .lead{margin-bottom:26px}.demo-player--large{max-width:1000px}
.demo-player__disclaimer{margin-top:12px}
@media(max-width:560px){.demo-player__back,.demo-player__expand{top:7px;padding:7px 9px;font-size:12px}.demo-player__back{left:7px}.demo-player__expand{right:7px}}