/* ============================================================
   MARBEXA — Autonomous Systems
   styles.css  ·  static, no external dependencies
   ============================================================ */

:root{
  /* surfaces */
  --void:#06070a; --carbon:#0a0d12; --graphite:#0f131a; --graphite-2:#12161e;
  --abyss:#081524; --navy:#0c2038;
  /* lines */
  --steel-line:rgba(150,168,192,.12); --steel-line-2:rgba(150,168,192,.22);
  /* ink */
  --titanium:#c9d0da; --titanium-hi:#eef2f7;
  --text:#b3bac5; --dim:#889099; --faint:#5c636d;
  --signal:#6aacd6;
  /* type stacks (local only — no web fonts) */
  --sans:"Arial","Helvetica Neue","Segoe UI",system-ui,sans-serif;
  --mono:"SFMono-Regular","Consolas","Liberation Mono",monospace;
  /* rhythm */
  --nav-h:74px;
  --sp:clamp(84px,10vw,148px);
  --edge:clamp(20px,5vw,48px);
  --silver:linear-gradient(160deg,#f5f7fa 0%,#d4dae2 26%,#a7aeb9 52%,#d9dee5 66%,#8e96a1 100%);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--void); color:var(--text);
  font-family:var(--sans); font-size:16px; line-height:1.65;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden; position:relative;
}
body::before{
  content:""; position:fixed; inset:0; z-index:-2; pointer-events:none;
  background:
    linear-gradient(rgba(150,170,195,.045) 1px,transparent 1px) 0 0/100% 74px,
    linear-gradient(90deg,rgba(150,170,195,.045) 1px,transparent 1px) 0 0/74px 100%;
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%,#000 0%,transparent 72%);
          mask-image:radial-gradient(120% 90% at 50% 0%,#000 0%,transparent 72%);
}
body::after{
  content:""; position:fixed; inset:0; z-index:-1; pointer-events:none; opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.svg-defs{position:absolute;width:0;height:0;overflow:hidden}
.wrap{max-width:1280px;margin:0 auto;padding:0 var(--edge)}
a{color:inherit;text-decoration:none}
img,svg{display:block}
::selection{background:rgba(106,172,214,.30);color:#fff}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:2px}

/* skip link (accessibility) */
.skip{position:absolute;left:14px;top:-60px;z-index:200;background:var(--titanium-hi);color:#0a0d12;
  padding:10px 18px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;transition:top .25s var(--ease)}
.skip:focus{top:14px}

/* ---------- shared type ---------- */
.mono{font-family:var(--mono)}
.eyebrow{
  font-family:var(--mono); font-size:11.5px; letter-spacing:.24em;
  text-transform:uppercase; color:var(--dim); display:inline-flex; align-items:center; gap:12px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--steel-line-2);display:inline-block}
.eyebrow .idx{color:var(--signal)}
h1,h2,h3{font-family:var(--sans);font-weight:700;color:var(--titanium-hi);letter-spacing:-.01em;line-height:1.06}
.metal-text{background:var(--silver);-webkit-background-clip:text;background-clip:text;color:transparent}
.section-head{max-width:680px;margin-bottom:clamp(44px,5vw,72px)}
.section-head h2{font-size:clamp(1.9rem,3.7vw,3rem);margin:20px 0 16px;letter-spacing:-.02em}
.section-head p{font-size:clamp(1rem,1.4vw,1.12rem);color:var(--text);max-width:54ch}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;cursor:pointer;
  font-family:var(--sans);font-size:12.5px;font-weight:700;letter-spacing:.11em;
  text-transform:uppercase;padding:15px 26px;border:1px solid transparent;
  transition:all .35s var(--ease);white-space:nowrap;
}
.btn svg{width:15px;height:15px;transition:transform .35s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn--primary{background:linear-gradient(180deg,#eef2f6,#c4ccd6);color:#0a0d12}
.btn--primary:hover{background:linear-gradient(180deg,#fff,#d5dbe3);box-shadow:0 8px 34px -10px rgba(160,180,205,.35)}
.btn--ghost{border-color:var(--steel-line-2);color:var(--titanium);background:rgba(150,168,192,.02)}
.btn--ghost:hover{border-color:rgba(150,168,192,.5);background:rgba(150,168,192,.07);color:var(--titanium-hi)}

/* ---------- logo ---------- */
.logo{display:flex;align-items:center;gap:13px}
.logo .mark{width:38px;height:38px;flex:none}
.logo .word{display:flex;flex-direction:column;line-height:1}
.logo .word b{font-family:var(--sans);font-weight:700;font-size:16px;letter-spacing:.3em;color:var(--titanium-hi)}
.logo .word span{font-family:var(--mono);font-size:8.5px;letter-spacing:.32em;color:var(--dim);margin-top:5px}

/* ---------- header / nav ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .4s,border-color .4s,backdrop-filter .4s;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(6,7,10,.72);backdrop-filter:blur(16px) saturate(120%);-webkit-backdrop-filter:blur(16px) saturate(120%);border-bottom-color:var(--steel-line)}
.nav-inner{height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:12.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--dim);transition:color .3s;position:relative;padding:6px 0}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--signal);transition:width .3s var(--ease)}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--titanium-hi)}
.nav-links a:hover::after,.nav-links a:focus-visible::after{width:100%}
.nav-right{display:flex;align-items:center;gap:20px}
.site-header .btn{padding:11px 20px}
.burger{display:none;width:40px;height:40px;border:1px solid var(--steel-line-2);background:none;cursor:pointer;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.burger span{width:17px;height:1.5px;background:var(--titanium);transition:.3s}
body.menu-open .burger span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
body.menu-open .burger span:nth-child(2){opacity:0}
body.menu-open .burger span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:var(--nav-h) 0 auto 0;z-index:99;background:rgba(8,10,14,.97);backdrop-filter:blur(20px);border-bottom:1px solid var(--steel-line);transform:translateY(-120%);transition:transform .45s var(--ease);padding:26px var(--edge) 34px;visibility:hidden}
body.menu-open .mobile-menu{transform:translateY(0);visibility:visible}
.mobile-menu a{display:block;font-family:var(--sans);font-weight:700;font-size:20px;color:var(--titanium);padding:15px 0;border-bottom:1px solid var(--steel-line);letter-spacing:.03em}
.mobile-menu .btn{margin-top:24px;width:100%;justify-content:center}

/* ---------- hero ---------- */
.hero{position:relative;padding-top:calc(var(--nav-h) + clamp(46px,7vw,92px));padding-bottom:clamp(40px,6vw,80px);overflow:hidden}
.hero-glow{position:absolute;top:-8%;right:-14%;width:70vw;height:70vw;max-width:900px;max-height:900px;z-index:-1;pointer-events:none;
  background:radial-gradient(circle at 50% 50%,rgba(30,86,150,.30),rgba(20,58,105,.10) 42%,transparent 68%);
  filter:blur(6px)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(30px,4.5vw,64px);align-items:center}
.hero-copy .eyebrow{margin-bottom:26px}
.hero-copy h1{font-size:clamp(2.4rem,5.4vw,4.4rem);font-weight:700;letter-spacing:-.025em}
.hero-copy h1 .l2{color:var(--titanium-hi);opacity:.92}
.hero-copy p.sub{margin:26px 0 34px;font-size:clamp(1.02rem,1.35vw,1.18rem);color:var(--text);max-width:52ch;line-height:1.62}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-specs{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:clamp(40px,5vw,58px);border:1px solid var(--steel-line);background:var(--steel-line)}
.hero-specs .spec{background:var(--carbon);padding:16px 18px}
.hero-specs .k{font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:var(--dim);text-transform:uppercase}
.hero-specs .v{font-family:var(--sans);font-weight:700;font-size:clamp(.98rem,1.25vw,1.12rem);color:var(--titanium-hi);margin-top:8px;letter-spacing:.005em}

/* hero visual / schematic */
.schematic{position:relative;aspect-ratio:1/1;width:100%;border:1px solid var(--steel-line);background:
  radial-gradient(circle at 50% 45%,rgba(16,32,54,.55),transparent 62%),
  linear-gradient(180deg,rgba(14,18,25,.6),rgba(8,10,14,.6));
  animation:float 9s ease-in-out infinite}
.schematic::before,.schematic::after{content:"";position:absolute;width:16px;height:16px;border:1px solid var(--steel-line-2)}
.schematic::before{top:-1px;left:-1px;border-right:none;border-bottom:none}
.schematic::after{bottom:-1px;right:-1px;border-left:none;border-top:none}
.schematic .grid-fade{position:absolute;inset:0;background:
  linear-gradient(rgba(150,170,195,.06) 1px,transparent 1px) 0 0/100% 40px,
  linear-gradient(90deg,rgba(150,170,195,.06) 1px,transparent 1px) 0 0/40px 100%;
  -webkit-mask-image:radial-gradient(circle at 50% 50%,#000,transparent 70%);mask-image:radial-gradient(circle at 50% 50%,#000,transparent 70%)}
.schematic .art{position:absolute;inset:9%;color:var(--titanium)}
.schematic .art svg{width:100%;height:100%}
.schematic .tag{position:absolute;font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--titanium);white-space:nowrap;display:flex;align-items:center;gap:8px}
.schematic .tag::before{content:"";width:6px;height:6px;border:1px solid var(--signal);background:rgba(106,172,214,.25);flex:none;transform:rotate(45deg)}
.schematic .tag.t1{top:15%;left:6%}
.schematic .tag.t2{top:46%;right:5%}
.schematic .tag.t3{bottom:15%;left:9%}
.schematic .corner-label{position:absolute;bottom:10px;left:12px;font-family:var(--mono);font-size:9px;letter-spacing:.14em;color:var(--faint)}
.schematic .corner-label.r{left:auto;right:12px;text-align:right}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ticker */
.ticker{border-top:1px solid var(--steel-line);border-bottom:1px solid var(--steel-line);margin-top:clamp(50px,6vw,78px);overflow:hidden}
.ticker-row{display:flex;align-items:center;gap:0;white-space:nowrap;animation:scroll 34s linear infinite;will-change:transform}
.ticker-row span{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);padding:16px 32px;display:inline-flex;align-items:center;gap:32px}
.ticker-row span::after{content:"◆";color:var(--signal);font-size:7px;opacity:.7}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- generic section ---------- */
.section{padding:var(--sp) 0;position:relative}
.section.alt{background:linear-gradient(180deg,rgba(10,13,18,.5),rgba(8,10,14,0))}

/* systems cards */
.sys-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--steel-line);border:1px solid var(--steel-line)}
.sys-card{background:var(--carbon);padding:0;display:flex;flex-direction:column;position:relative;transition:background .4s var(--ease)}
.sys-card:hover{background:var(--graphite-2)}
.sys-thumb{aspect-ratio:4/3;position:relative;overflow:hidden;border-bottom:1px solid var(--steel-line);
  background:radial-gradient(circle at 50% 60%,rgba(16,34,58,.4),transparent 65%)}
.sys-thumb .art{position:absolute;inset:12%;color:var(--titanium);transition:transform .55s var(--ease),color .4s}
.sys-thumb .art svg{width:100%;height:100%}
.sys-card:hover .sys-thumb .art{transform:scale(1.05);color:var(--titanium-hi)}
.sys-thumb .code{position:absolute;top:12px;left:12px;font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;color:var(--faint)}
.sys-thumb .plus{position:absolute;top:11px;right:12px;color:var(--steel-line-2);font-size:12px}
.sys-body{padding:26px 24px 24px;flex:1;display:flex;flex-direction:column}
.sys-body h3{font-size:1.24rem;margin-bottom:12px}
.sys-body p{font-size:.94rem;color:var(--dim);line-height:1.6;flex:1}
.sys-more{margin-top:22px;display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--titanium);align-self:flex-start}
.sys-more svg{width:13px;height:13px;transition:transform .35s var(--ease)}
.sys-card:hover .sys-more svg{transform:translateX(5px)}
.sys-card:hover .sys-more,.sys-more:focus-visible{color:var(--signal)}

/* engineering advantage */
.eng-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--steel-line);border:1px solid var(--steel-line)}
.eng-item{background:var(--carbon);padding:34px 30px;transition:background .4s}
.eng-item:hover{background:var(--graphite-2)}
.eng-ico{width:44px;height:44px;border:1px solid var(--steel-line-2);display:flex;align-items:center;justify-content:center;margin-bottom:22px;color:var(--titanium)}
.eng-ico svg{width:22px;height:22px}
.eng-item h3{font-size:1.1rem;margin-bottom:11px}
.eng-item p{font-size:.92rem;color:var(--dim);line-height:1.58}
.eng-banner{margin-top:1px;background:linear-gradient(120deg,var(--abyss),var(--carbon) 70%);border:1px solid var(--steel-line);border-top:none;padding:clamp(34px,4vw,52px);display:flex;align-items:center;gap:clamp(24px,4vw,54px);position:relative;overflow:hidden}
.eng-banner .bmark{width:clamp(70px,9vw,110px);height:clamp(70px,9vw,110px);flex:none;opacity:.9}
.eng-banner .btxt h3{font-size:clamp(1.4rem,2.4vw,2rem);margin-bottom:10px}
.eng-banner .btxt p{color:var(--text);max-width:64ch;font-size:1rem}
.eng-banner .watermark{position:absolute;right:-40px;top:50%;transform:translateY(-50%);width:340px;height:340px;opacity:.04;pointer-events:none}

/* components */
.cmp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--steel-line);border:1px solid var(--steel-line);margin-bottom:clamp(30px,4vw,48px)}
.cmp-tile{background:var(--carbon);padding:32px 28px;display:flex;gap:22px;align-items:flex-start;transition:background .4s}
.cmp-tile:hover{background:var(--graphite-2)}
.cmp-ico{width:66px;height:66px;flex:none;border:1px solid var(--steel-line);color:var(--titanium);padding:10px;background:radial-gradient(circle at 50% 50%,rgba(16,34,58,.35),transparent 70%)}
.cmp-ico svg{width:100%;height:100%}
.cmp-tile:hover .cmp-ico{color:var(--titanium-hi)}
.cmp-info h3{font-size:1.05rem;margin-bottom:8px}
.cmp-info p{font-size:.88rem;color:var(--dim);line-height:1.55}
.cmp-integrate{border:1px solid var(--steel-line);background:var(--graphite);display:grid;grid-template-columns:1.4fr 1fr;align-items:center;gap:clamp(24px,4vw,50px);padding:clamp(30px,4vw,50px)}
.cmp-integrate h3{font-size:clamp(1.3rem,2.2vw,1.8rem);margin-bottom:14px}
.cmp-integrate p{color:var(--text);font-size:1rem;max-width:50ch}
.cmp-integrate .diagram{aspect-ratio:1.2/1;border:1px solid var(--steel-line);color:var(--titanium);padding:8%;position:relative;background:radial-gradient(circle at 50% 50%,rgba(16,34,58,.4),transparent 65%)}
.cmp-integrate .diagram svg{width:100%;height:100%}

/* ---------- engineering process ---------- */
.proc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--steel-line);border:1px solid var(--steel-line)}
.proc-step{background:var(--carbon);padding:34px 30px 32px;position:relative;transition:background .4s var(--ease)}
.proc-step:hover{background:var(--graphite-2)}
.proc-step .num{font-family:var(--mono);font-size:2.4rem;font-weight:600;line-height:1;color:transparent;background:var(--silver);-webkit-background-clip:text;background-clip:text;opacity:.55;transition:opacity .4s}
.proc-step:hover .num{opacity:1}
.proc-step .bar{width:34px;height:2px;background:var(--steel-line-2);margin:20px 0 20px}
.proc-step:hover .bar{background:var(--signal)}
.proc-step h3{font-size:1.16rem;margin-bottom:11px}
.proc-step p{font-size:.92rem;color:var(--dim);line-height:1.58}
.proc-step .tick{position:absolute;top:18px;right:20px;font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;color:var(--faint)}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(30px,5vw,64px);align-items:start}
.about-copy h2{font-size:clamp(1.9rem,3.4vw,2.9rem);margin-bottom:26px;letter-spacing:-.02em}
.about-copy p{font-size:1.04rem;color:var(--text);line-height:1.7;margin-bottom:20px;max-width:60ch}
.about-copy p:last-child{margin-bottom:0}
.about-panel{border:1px solid var(--steel-line);background:linear-gradient(150deg,var(--abyss),var(--carbon) 72%);padding:clamp(28px,3vw,38px);position:relative;overflow:hidden}
.about-panel .pmark{width:64px;height:64px;opacity:.9;margin-bottom:26px}
.about-panel ul{list-style:none;display:flex;flex-direction:column;gap:1px;background:var(--steel-line);border:1px solid var(--steel-line)}
.about-panel li{background:var(--carbon);padding:16px 18px;font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--titanium);display:flex;align-items:center;gap:12px}
.about-panel li::before{content:"";width:6px;height:6px;border:1px solid var(--signal);background:rgba(106,172,214,.25);transform:rotate(45deg);flex:none}
.about-panel .watermark{position:absolute;right:-50px;bottom:-50px;width:220px;height:220px;opacity:.05;pointer-events:none}

/* final cta */
.cta{position:relative;text-align:center;padding:clamp(90px,12vw,160px) 0;overflow:hidden}
.cta-glow{position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse 60% 80% at 50% 55%,rgba(28,80,140,.28),transparent 65%)}
.cta .watermark{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(60vw,540px);height:min(60vw,540px);opacity:.05;pointer-events:none}
.cta .eyebrow{margin-bottom:24px;justify-content:center}
.cta h2{font-size:clamp(2.2rem,5vw,3.8rem);margin:0 auto 22px;max-width:16ch;letter-spacing:-.02em}
.cta p{color:var(--text);font-size:clamp(1.02rem,1.4vw,1.2rem);max-width:46ch;margin:0 auto 40px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* footer */
.footer{border-top:1px solid var(--steel-line);padding-top:clamp(56px,7vw,84px);padding-bottom:36px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:clamp(30px,4vw,56px);padding-bottom:clamp(46px,6vw,68px)}
.foot-brand .logo{margin-bottom:22px}
.foot-brand p{font-size:.92rem;color:var(--dim);max-width:36ch;line-height:1.6;margin-bottom:18px}
.foot-loc{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.foot-col h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-bottom:20px;font-weight:600}
.foot-col a{display:block;font-size:.93rem;color:var(--text);padding:7px 0;transition:color .3s}
.foot-col a:hover,.foot-col a:focus-visible{color:var(--titanium-hi)}
.foot-bottom{border-top:1px solid var(--steel-line);padding-top:28px;display:flex;justify-content:space-between;align-items:center;gap:16px 26px;flex-wrap:wrap}
.foot-legal{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.foot-legal a{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);transition:color .3s}
.foot-legal a:hover,.foot-legal a:focus-visible{color:var(--titanium-hi)}
.foot-bottom .copy{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--faint);text-transform:uppercase}
.foot-bottom .sig{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--faint);text-transform:uppercase}

/* ---------- legal pages ---------- */
.legal-main{max-width:820px;margin:0 auto;padding:calc(var(--nav-h) + clamp(50px,8vw,90px)) var(--edge) clamp(70px,9vw,120px)}
.legal-main .eyebrow{margin-bottom:22px}
.legal-main h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:14px;letter-spacing:-.02em}
.legal-main .updated{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--faint);text-transform:uppercase;margin-bottom:44px}
.legal-main h2{font-size:1.3rem;margin:38px 0 14px;color:var(--titanium-hi)}
.legal-main p{color:var(--text);line-height:1.75;margin-bottom:16px;max-width:70ch}
.legal-main a{color:var(--titanium-hi);text-decoration:underline;text-underline-offset:3px}
.legal-main .back{display:inline-flex;align-items:center;gap:9px;margin-top:40px;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--signal)}

/* reveal */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:1080px){
  .sys-grid{grid-template-columns:repeat(2,1fr)}
  .eng-grid{grid-template-columns:repeat(2,1fr)}
  .cmp-grid{grid-template-columns:repeat(2,1fr)}
  .proc-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .nav-links,.site-header .btn.desk{display:none}
  .burger{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{max-width:460px;margin:0 auto;width:100%}
  .eng-banner{flex-direction:column;text-align:center;align-items:center}
  .cmp-integrate{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
}
@media(max-width:560px){
  .hero-specs{grid-template-columns:repeat(2,1fr)}
  .sys-grid{grid-template-columns:1fr}
  .eng-grid{grid-template-columns:1fr}
  .cmp-grid{grid-template-columns:1fr}
  .proc-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .logo .word span{display:none}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
}