:root{--bg:#030509;--panel:#0b1218;--text:#eef3f7;--muted:#91a0ae;--ice:#dbe8f2;--line:rgba(190,210,230,.16);--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(rgba(3,5,9,.88),rgba(3,5,9,.96)),url('../HEADER-BG-SIGNAL.webp') top center/cover fixed;color:var(--text);font-family:Arial,Helvetica,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}img,video{max-width:100%}a:focus-visible,summary:focus-visible{outline:2px solid #dbe8f2;outline-offset:5px}.shell{width:min(var(--max),calc(100% - 72px));margin-inline:auto}.skip{position:absolute;left:16px;top:-90px;padding:10px;background:#fff;color:#000;z-index:20}.skip:focus{top:10px}.site-header{position:sticky;top:0;z-index:5;background:rgba(3,5,9,.93);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.bar{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:block;flex-shrink:0}.brand img{display:block;width:205px;height:auto;max-height:53px;object-fit:contain}.nav{display:flex;gap:25px;flex-wrap:wrap;justify-content:flex-end}.nav a,.eyebrow,.kicker,.index{font-size:11px;letter-spacing:.19em;text-transform:uppercase}.nav a{color:#b4c2cd}.nav a:hover,.text-link:hover{color:white}.eyebrow,.index{color:#99acbd;margin:0 0 21px}.hero{display:grid;grid-template-columns:1.13fr .87fr;gap:65px;align-items:center;padding-block:97px 115px}.hero h1{font-size:clamp(50px,5.3vw,77px);line-height:.99;letter-spacing:-.035em;max-width:820px;margin:0 0 30px}.hero h1 em,.end-section h2 em{font-style:normal;color:#99b0c4}.lead{font-size:clamp(19px,2vw,24px);line-height:1.55;color:#d6e0e8;margin:0 0 24px;max-width:700px}.detail{color:#a4b4bf;font-size:15px;max-width:650px}.signal-line{display:flex;align-items:center;gap:15px;margin:22px 0 26px;color:#e4ecf3}.signal-line span{font-size:12px;font-weight:700;letter-spacing:.17em}.signal-line i{height:1px;width:37px;background:#758fa2;position:relative}.signal-line i:after{content:'';position:absolute;right:0;top:-3px;width:5px;height:5px;border-top:1px solid #acc4d4;border-right:1px solid #acc4d4;transform:rotate(45deg)}.actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:35px}.button{display:inline-flex;gap:22px;min-height:50px;align-items:center;justify-content:center;padding:13px 20px;border:1px solid rgba(200,220,232,.35);border-radius:10px;font-size:12px;letter-spacing:.075em;font-weight:700;transition:transform .2s,border-color .2s}.button:hover{transform:translateY(-3px);border-color:white}.primary{background:#dbe8f2;color:#071016;border-color:#dbe8f2}.primary span{font-weight:400;border-left:1px solid #9caebc;padding-left:15px}.secondary{background:rgba(7,14,21,.75);color:#e0e9ef}.trust{font-size:12px;color:#9aaebc;margin-top:18px}.hero-art{margin:0;background:rgba(5,9,13,.8);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 27px 65px rgba(0,0,0,.35)}.hero-art img{width:100%;height:auto;object-fit:contain;display:block}.hero-art figcaption{border-top:1px solid var(--line);padding:17px 21px;font-size:10px;color:#aebfcd;letter-spacing:.13em;text-transform:uppercase}.numbers{background:rgba(11,19,27,.75);border-block:1px solid var(--line)}.stat-grid{display:grid;grid-template-columns:repeat(5,1fr)}.stat-grid>div{padding:27px 12px;border-right:1px solid var(--line);display:flex;gap:5px;flex-direction:column}.stat-grid>div:first-child{padding-left:0}.stat-grid>div:last-child{border-right:0}.stat-grid strong{font-size:36px;line-height:1;font-weight:500;letter-spacing:-.03em}.stat-grid span{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#a6b8c4}.section{padding-block:104px;border-bottom:1px solid var(--line)}.section-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.75fr);gap:65px;align-items:end;margin-bottom:42px}.section-head h2,.faq-area h2{font-size:clamp(37px,4.3vw,60px);line-height:1.04;letter-spacing:-.025em;margin:0}.section-head>p{color:#a8b9c5;font-size:15px;margin:0}.demo-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:45px;align-items:center}.video-frame{background:#020408;border:1px solid var(--line);border-radius:17px;overflow:hidden;box-shadow:0 22px 50px rgba(0,0,0,.3)}.video-frame video{display:block;width:100%;height:auto;aspect-ratio:16/9}.demo-copy{padding:20px 0}.kicker{color:#aac0ce}.stages{padding:0;list-style:none;margin:28px 0}.stages li{display:flex;flex-direction:column;gap:5px;border-top:1px solid var(--line);padding:17px 0}.stages li b{font-size:12px;letter-spacing:.12em;color:#e4edf4}.stages li span{font-size:14px;color:#a7b7c2}.text-link{font-size:13px;text-decoration:underline;text-underline-offset:5px;color:#d0e1ed}.shaded{background:rgba(10,17,23,.77)}.contents-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.content-card{border:1px solid var(--line);border-radius:15px;padding:29px;background:rgba(3,6,9,.55)}.content-card h3{font-size:26px;line-height:1.15;margin:18px 0}.content-card p,.workflow p{color:#9eafbc;font-size:14px}.minor-heading{font-size:12px;letter-spacing:.22em;margin:61px 0 25px;color:#b7cad7}.families{padding:0;list-style:none;counter-reset:families;display:grid;grid-template-columns:repeat(4,1fr);gap:0 18px}.families li{counter-increment:families;border-top:1px solid var(--line);padding:15px 0;font-size:13px;letter-spacing:.035em}.families li:before{content:counter(families,decimal-leading-zero)' / ';font-size:10px;letter-spacing:.12em;color:#859cac}.workflow{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.workflow>div{border-left:1px solid #7891a3;padding:4px 0 5px 24px}.workflow span{font-size:10px;color:#9fb6c6;letter-spacing:.15em}.workflow h3{font-size:24px;line-height:1.2;margin:12px 0}.specs{margin-top:52px;border-top:1px solid var(--line);display:flex;gap:10px 35px;flex-wrap:wrap}.specs p{font-size:12px;color:#b2c2ce}.specs strong{font-size:10px;letter-spacing:.11em;color:#849aaa;margin-right:6px}.faq-area{display:grid;grid-template-columns:.75fr 1.25fr;gap:65px}.faqs details{border-top:1px solid var(--line)}.faqs details:last-child{border-bottom:1px solid var(--line)}.faqs summary{cursor:pointer;padding:20px 0;font-weight:700;color:#e0eaf1;font-size:15px}.faqs details p{color:#a5b7c3;font-size:14px;margin:0 0 24px}.end-section{text-align:center;padding-block:105px 120px}.end-section h2{font-size:clamp(48px,6vw,82px);line-height:1.05;letter-spacing:-.025em;margin:15px 0 24px}.end-section>p:not(.eyebrow):not(.trust){color:#adbfcb;margin-bottom:27px}.site-footer{border-top:1px solid var(--line);padding:42px 0 36px;background:#030509}.footer-row{display:flex;align-items:center;justify-content:space-between;gap:32px}.footer-row>div{display:flex;flex-direction:column;gap:10px}.footer-row img{height:auto;max-height:53px;object-fit:contain;object-position:left;width:210px}.footer-row span{font-size:10px;letter-spacing:.14em;color:#90a4b3}.site-footer nav{display:flex;gap:18px;flex-wrap:wrap}.site-footer nav a{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:#a8b9c5}.site-footer nav a:hover{color:white}.copyright{text-align:center;color:#8193a0;font-size:10px;letter-spacing:.15em;margin-top:48px}
@media(max-width:1000px){.hero{gap:30px}.hero h1{font-size:clamp(45px,5.8vw,70px)}.section-head{gap:25px}.demo-layout{grid-template-columns:1fr}.stat-grid{grid-template-columns:repeat(5,1fr)}.faq-area{gap:30px}}
@media(max-width:760px){.shell{width:min(var(--max),calc(100% - 36px))}.bar{min-height:76px;flex-direction:column;align-items:flex-start;gap:6px;padding-block:10px}.brand img{width:145px}.nav{gap:13px;justify-content:flex-start}.nav a{font-size:9px}.hero{grid-template-columns:1fr;padding-block:55px 65px}.hero h1{font-size:clamp(43px,9vw,72px)}.hero-art{max-width:580px}.stat-grid{grid-template-columns:repeat(3,1fr)}.stat-grid>div{padding:18px 12px;border-bottom:1px solid var(--line)}.stat-grid>div:first-child{padding-left:12px}.stat-grid strong{font-size:31px}.section{padding-block:70px}.section-head{grid-template-columns:1fr;gap:14px}.contents-grid,.workflow{grid-template-columns:1fr}.families{grid-template-columns:repeat(2,1fr)}.faq-area{grid-template-columns:1fr;gap:27px}.footer-row{flex-direction:column;align-items:flex-start}.end-section{padding-block:70px}.end-section h2{font-size:46px}}
@media(max-width:400px){.nav{gap:10px}.nav a{font-size:8px}.stat-grid{grid-template-columns:repeat(2,1fr)}.families{grid-template-columns:1fr}.signal-line{gap:10px}.signal-line i{width:21px}.button{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}

/* Intrinsic image/video dimensions must not widen mobile CSS grid tracks. */
.hero-copy,.hero-art,.video-frame,.demo-copy,.faq-area>*{min-width:0}
@media(max-width:760px){.hero,.demo-layout,.section-head,.faq-area{grid-template-columns:minmax(0,1fr)}}

/* Mobile hero: full-width block layout rather than intrinsic-width desktop grid. */
@media(max-width:760px){
  body{overflow-x:clip}
  .hero{display:block}
  .hero-copy,.hero-art{width:100%;max-width:100%;min-width:0}
  .hero h1{font-size:clamp(34px,8vw,48px);overflow-wrap:normal}
  .lead{font-size:18px}
  .actions{display:grid;grid-template-columns:minmax(0,1fr)}
  .button{width:100%}
  .hero-art{margin-top:40px}
}