/* ============ BASE ============ */
body{
  font-family:var(--font);color:var(--text);background:var(--bg-0);
  font-size:clamp(15px,1.02vw,16.5px);overflow-x:hidden;position:relative;
}
/* page-wide ambient light field */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(1100px 720px at 82% -6%,rgba(31,123,255,.28),transparent 60%),
    radial-gradient(880px 620px at 8% 8%,rgba(20,74,190,.20),transparent 62%),
    radial-gradient(1200px 900px at 50% 118%,rgba(12,60,150,.16),transparent 60%),
    linear-gradient(180deg,#040d1a,#030a15 40%,#02070f);
}
/* faint technical grid */
body::after{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(120,180,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(120% 80% at 50% 0%,#000 20%,transparent 78%);
          mask-image:radial-gradient(120% 80% at 50% 0%,#000 20%,transparent 78%);
}
.container{width:min(var(--container),100% - (var(--gutter) * 2));margin-inline:auto}
[id]{scroll-margin-top:100px}
.icon{width:22px;height:22px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);margin-bottom:18px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
.accent{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted);font-size:clamp(16px,1.25vw,19px);line-height:1.62;max-width:60ch}
.fine{color:var(--subtle);font-size:13.5px;line-height:1.6}
.fine.narrow,.narrow{max-width:74ch}.center{margin-inline:auto;text-align:center}
.text-link{display:inline-flex;align-items:center;gap:7px;color:var(--cyan);font-weight:650;font-size:14.5px;transition:gap .25s var(--ease),color .2s}
.text-link:hover{gap:12px;color:var(--cyan-2)}
.notice{border:1px solid var(--line);border-left:3px solid var(--blue-2);background:linear-gradient(100deg,rgba(20,50,92,.4),rgba(10,24,44,.2));border-radius:var(--r-sm);padding:16px 20px;color:var(--muted);font-size:14px}
.skip-link{position:absolute;left:16px;top:-60px;z-index:120;background:var(--blue);color:#fff;padding:10px 16px;border-radius:8px;transition:top .2s}
.skip-link:focus{top:16px}

/* ============ HEADER ============ */
.site-header{position:sticky;top:0;z-index:100;transition:background .3s,backdrop-filter .3s,border-color .3s,box-shadow .3s;border-bottom:1px solid transparent}
.site-header.is-scrolled{background:rgba(4,11,22,.72);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);border-bottom-color:var(--line);box-shadow:0 20px 50px -30px rgba(0,0,0,.9)}
.header-inner{display:flex;align-items:center;gap:24px;height:78px}
.brand{display:inline-flex;flex-direction:column;gap:4px;line-height:1;flex:none}
.brand-lock{display:flex;align-items:center;gap:11px}
.brand-lock img{height:38px;width:auto;filter:drop-shadow(0 0 16px rgba(60,170,255,.55))}
.brand-word{font-size:23px;font-weight:800;letter-spacing:-.02em;color:#fff}
.brand-word b{font-weight:800;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand small{font-size:10px;letter-spacing:.15em;text-transform:uppercase;color:var(--subtle);margin-left:49px}
.footer-brand .brand-lock img{height:34px}
.nav{margin-left:auto;display:flex;align-items:center;gap:5px}
.nav>a:not(.button){padding:9px 15px;border-radius:var(--pill);color:var(--muted);font-size:14.5px;font-weight:550;transition:color .2s,background .2s}
.nav>a:not(.button):hover{color:var(--text);background:rgba(120,180,255,.07)}
.nav>a[aria-current="page"]{color:var(--text);background:rgba(30,123,255,.14)}
.nav .button{margin-left:12px}
.menu-toggle{display:none;width:44px;height:44px;border-radius:11px;border:1px solid var(--line);color:var(--text);align-items:center;justify-content:center;margin-left:auto}
.menu-toggle .icon{width:24px;height:24px}

/* ============ SECTIONS ============ */
main{display:block}
.section{position:relative;padding:clamp(64px,8vw,116px) 0}
.section-tight{padding:clamp(44px,5vw,72px) 0}
.section-alt{background:linear-gradient(180deg,rgba(10,26,48,.4),rgba(6,16,30,.15));border-block:1px solid var(--hair)}
.section-intro{max-width:760px;margin-bottom:clamp(38px,5vw,58px)}
.section-intro h2,.section h2{font-size:clamp(29px,3.6vw,46px)}
.section-intro .lead{margin-top:18px}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;flex-wrap:wrap;margin-bottom:clamp(34px,4vw,52px)}
.section-head h2{font-size:clamp(27px,3.3vw,42px)}
.divider{border-top:1px solid var(--hair)}
h1{font-size:clamp(38px,5.6vw,72px);letter-spacing:-.033em}
h2{letter-spacing:-.028em}

/* ============ PAGE HERO (inner pages) ============ */
.page-hero{position:relative;padding:clamp(72px,9vw,128px) 0 clamp(40px,5vw,64px);overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(760px 420px at 20% -10%,rgba(31,123,255,.26),transparent 62%),radial-gradient(600px 380px at 92% 0%,rgba(77,220,255,.12),transparent 60%)}
.page-hero h1{font-size:clamp(34px,5vw,62px);max-width:16ch}
.page-hero .lead{margin-top:22px;font-size:clamp(16px,1.35vw,20px)}
.page-hero .button-row{margin-top:32px}
.breadcrumb{display:flex;gap:10px;align-items:center;color:var(--subtle);font-size:13px;margin-bottom:26px}
.breadcrumb a{color:var(--muted)}.breadcrumb a:hover{color:var(--cyan)}

/* ============ FOOTER ============ */
.footer{position:relative;margin-top:40px;padding:clamp(56px,7vw,88px) 0 34px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(6,16,30,.2),rgba(3,9,18,.9));overflow:hidden}
.footer::before{content:"";position:absolute;right:-120px;top:-60px;width:520px;height:520px;background:url("../images/ScoutByt-orbital.webp") center/contain no-repeat;opacity:.05;filter:grayscale(.2);pointer-events:none}
.footer::after{content:"";position:absolute;inset:0 0 auto;height:1px;background:linear-gradient(90deg,transparent,var(--line-2),transparent)}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(5,1fr);gap:40px 28px;position:relative}
.footer-brand{max-width:260px}
.footer-brand .brand img{height:34px}
.footer-tagline{color:var(--subtle);font-size:13.5px;margin-top:14px}
.footer-tagline:first-of-type{color:var(--cyan);font-weight:600;letter-spacing:.02em}
.footer h3{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--subtle);margin-bottom:16px;font-weight:700}
.footer ul{display:grid;gap:11px}
.footer li a{color:var(--muted);font-size:14px;transition:color .2s}
.footer li a:hover{color:var(--cyan)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;margin-top:48px;padding-top:24px;border-top:1px solid var(--hair);color:var(--subtle);font-size:13px}
.footer-bottom>div{display:flex;gap:22px}
.footer-bottom a{color:var(--subtle)}.footer-bottom a:hover{color:var(--cyan)}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){.footer-grid{grid-template-columns:1fr 1fr 1fr}.footer-brand{grid-column:1/-1;max-width:none}}
@media (max-width:900px){
  .menu-toggle{display:inline-flex}
  .nav{position:fixed;inset:78px 0 auto;flex-direction:column;align-items:stretch;gap:6px;padding:18px var(--gutter) 26px;background:rgba(5,13,26,.96);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--line);transform:translateY(-14px);opacity:0;visibility:hidden;transition:.28s var(--ease);margin:0}
  .nav.is-open{transform:none;opacity:1;visibility:visible}
  .nav>a:not(.button){padding:13px 16px;font-size:16px}
  .nav .button{margin:8px 0 0;justify-content:center}
  .site-header{background:rgba(4,11,22,.7);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom-color:var(--line)}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .section-head{align-items:flex-start}
}
@media (max-width:430px){.footer-grid{grid-template-columns:1fr}}