:root{
  --navy:#071525;
  --navy-2:#0b2947;
  --blue:#2b64e8;
  --blue-dark:#1f4fc0;
  --green:#0e9f6e;
  --ink:#172033;
  --muted:#667085;
  --line:#e2e8f0;
  --soft:#f5f8fc;
  --white:#fff;
  --shadow:0 20px 60px rgba(7,21,37,.10);
  --container:1220px;
  --sans:"IBM Plex Sans",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --display:"Manrope",var(--sans);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--sans);line-height:1.65;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
button,input{font:inherit}
.container{width:min(var(--container),calc(100% - 42px));margin-inline:auto}

.utility-bar{background:var(--navy);color:#aab8c7;font-size:11px}
.utility-inner{height:34px;display:flex;align-items:center;justify-content:space-between}
.utility-bar a{color:#eef5fb}

.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(226,232,240,.95)}
.header-inner{height:78px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}
.brand-mark{width:43px;height:43px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(145deg,#eaf1ff,#fff);color:var(--blue);box-shadow:inset 0 0 0 1px rgba(43,100,232,.13)}
.brand-mark svg{width:29px}
.brand strong{display:block;font-family:var(--display);font-size:16px;line-height:1.1}
.brand small{display:block;color:var(--muted);font-size:10px;margin-top:4px}
.main-nav{display:flex;align-items:center;gap:24px;margin-left:auto}
.main-nav a,.sign-in{font-size:13px;font-weight:600;color:#344054}
.main-nav a:hover,.sign-in:hover{color:var(--blue)}
.header-actions{display:flex;align-items:center;gap:15px}
.menu-toggle{display:none;border:0;background:none;width:42px;height:42px;padding:10px;margin-left:auto;cursor:pointer}
.menu-toggle span{display:block;height:2px;margin:5px 0;border-radius:2px;background:var(--ink)}

.button{min-height:50px;padding:0 23px;border-radius:12px;border:1px solid var(--blue);display:inline-flex;align-items:center;justify-content:center;background:var(--blue);color:#fff;font-weight:700;transition:.2s}
.button:hover{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 30px rgba(43,100,232,.20)}
.button-small{min-height:42px;padding-inline:17px;font-size:12px}
.button-light{background:#fff;color:var(--navy);border-color:#fff}
.button-light:hover{background:#edf6ff;color:var(--blue)}
.button-outline-light{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.46);color:#fff}
.button-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;box-shadow:none}

.hero-section{padding:30px 0 0;background:linear-gradient(180deg,#f5f8fc,#fff)}
.hero-card{
  position:relative;overflow:hidden;min-height:610px;border-radius:28px;
  display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center;
  padding:clamp(38px,5vw,68px);
  background:
    linear-gradient(90deg,rgba(5,17,30,.94) 0%,rgba(7,25,42,.86) 48%,rgba(7,21,37,.55) 100%),
    url("assets/engineering-background.png") center/cover no-repeat;
  box-shadow:0 28px 90px rgba(7,21,37,.20)
}
.hero-card:after{content:"";position:absolute;inset:auto -10% -50% auto;width:680px;height:680px;border-radius:50%;background:radial-gradient(circle,rgba(43,100,232,.19),transparent 67%);pointer-events:none}
.hero-copy,.hero-showcase{position:relative;z-index:2}
.eyebrow,.section-kicker{font-size:11px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--blue)}
.eyebrow{display:flex;align-items:center;gap:10px;color:#7ed8ff}
.eyebrow>span{width:9px;height:9px;border-radius:50%;background:#65e0b3;box-shadow:0 0 0 7px rgba(101,224,179,.11)}
.hero-copy h1{font-family:var(--display);font-size:clamp(44px,4.65vw,68px);line-height:1.04;letter-spacing:-.046em;color:#fff;margin:18px 0 24px;max-width:700px}
.hero-copy>p{font-size:18px;line-height:1.72;color:#c5d2df;max-width:660px;margin:0}
.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:31px}
.hero-proof{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
.hero-proof strong,.hero-proof span{display:block}
.hero-proof strong{font-family:var(--display);font-size:18px;color:#fff}
.hero-proof span{font-size:10px;color:#94a9bb;margin-top:3px}

.hero-showcase{height:470px}
.showcase-card{position:absolute;overflow:hidden;border-radius:18px;background:#fff;border:1px solid rgba(255,255,255,.26);box-shadow:0 24px 55px rgba(0,0,0,.28)}
.showcase-card img{width:100%;height:100%;object-fit:contain;background:#fff}
.showcase-main{width:72%;height:69%;left:4%;top:15%;z-index:2}
.showcase-top{width:38%;height:29%;right:0;top:3%;z-index:3}
.showcase-bottom{width:38%;height:29%;right:0;bottom:2%;z-index:3}
.showcase-caption{position:absolute;left:0;right:0;bottom:0;padding:13px 15px;background:linear-gradient(transparent,rgba(5,17,30,.86));color:#fff}
.showcase-caption span,.showcase-caption strong{display:block}
.showcase-caption span{font-size:8px;letter-spacing:.08em;color:#9bdcff}
.showcase-caption strong{font-size:12px;margin-top:2px}
.validation-chip{position:absolute;left:-3%;bottom:1%;z-index:5;width:268px;padding:14px;border-radius:15px;background:rgba(255,255,255,.97);display:flex;align-items:center;gap:11px;box-shadow:var(--shadow)}
.chip-check{width:37px;height:37px;border-radius:50%;display:grid;place-items:center;background:#dcfce7;color:var(--green);font-weight:800}
.validation-chip strong,.validation-chip small{display:block}
.validation-chip strong{font-size:12px}
.validation-chip small{font-size:9px;color:var(--muted);margin-top:3px}
.format-chip{position:absolute;right:18%;top:42%;z-index:5;width:112px;padding:9px;border-radius:14px;background:#fff;display:grid;grid-template-columns:repeat(2,1fr);gap:6px;box-shadow:var(--shadow)}
.format-chip span{height:36px;border-radius:8px;background:#edf3fa;color:var(--blue);display:grid;place-items:center;font-size:9px;font-weight:800}

.search-panel{position:relative;z-index:5;margin:-27px auto 0;width:calc(100% - 80px);height:62px;padding:8px 9px 8px 18px;border-radius:17px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px}
.search-panel svg{width:20px;fill:none;stroke:var(--muted);stroke-width:1.8;stroke-linecap:round}
.search-panel input{height:100%;border:0;outline:0;font-size:15px;min-width:0}
.search-panel button{height:44px;border:0;border-radius:10px;background:var(--navy);color:#fff;padding:0 21px;font-weight:700;cursor:pointer}
.popular-links{display:flex;gap:13px;flex-wrap:wrap;padding:15px 50px 0;font-size:12px}
.popular-links>span{color:var(--muted)}
.popular-links a{font-weight:700;color:#344054}

.audience-section{padding:72px 0 18px}
.audience-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.audience-card{position:relative;overflow:hidden;min-height:375px;border-radius:22px;border:1px solid var(--line);background:#fff;display:grid;grid-template-columns:1.08fr .92fr;box-shadow:0 12px 38px rgba(7,21,37,.055)}
.audience-content{padding:34px;position:relative;z-index:2}
.audience-label{font-size:10px;letter-spacing:.10em;font-weight:800;color:var(--blue)}
.audience-card h2{font-family:var(--display);font-size:28px;line-height:1.23;margin:13px 0 11px}
.audience-card p{font-size:13px;color:var(--muted);margin:0}
.audience-points{display:grid;gap:8px;margin:21px 0}
.audience-points span{font-size:12px;color:#344054}
.audience-points span:before{content:"✓";color:var(--green);font-weight:800;margin-right:8px}
.audience-card a{font-size:12px;color:var(--blue);font-weight:700}
.audience-visual{min-height:100%;background:#edf3f8}
.audience-visual img{width:100%;height:100%;object-fit:cover}
.academia-card:before,.industry-card:before{content:"";position:absolute;inset:0;pointer-events:none}
.academia-card:before{background:linear-gradient(90deg,rgba(255,255,255,0) 50%,rgba(43,100,232,.04))}
.industry-card:before{background:linear-gradient(90deg,rgba(255,255,255,0) 50%,rgba(7,21,37,.04))}

.section{padding:88px 0}
.section-soft{background:var(--soft)}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:38px;margin-bottom:36px}
.section-heading h2,.validation-copy h2,.custom-card h2,.newsletter h2{font-family:var(--display);font-size:clamp(34px,3.7vw,50px);line-height:1.1;letter-spacing:-.038em;margin:8px 0 0}
.section-heading p{max-width:520px;color:var(--muted);margin:0}
.section-link{font-size:13px;color:var(--blue);font-weight:700;white-space:nowrap}

.field-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.field-card{padding:27px;border:1px solid var(--line);border-radius:19px;background:#fff;transition:.22s}
.field-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#c8d6e8}
.field-code{width:49px;height:49px;border-radius:13px;background:#eaf1ff;color:var(--blue);display:grid;place-items:center;font-size:12px;font-weight:800;margin-bottom:21px}
.field-card h3{font-family:var(--display);font-size:19px;margin:0 0 8px}
.field-card p{font-size:13px;color:var(--muted);margin:0 0 18px}
.field-link{font-size:12px;color:var(--blue);font-weight:700}

.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:20px;transition:.25s}
.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.product-image{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:#fff}
.product-image img{width:100%;height:100%;object-fit:contain;background:#fff;transition:.32s}
.product-card:hover .product-image img{transform:scale(1.025)}
.status-badge{position:absolute;left:12px;top:12px;padding:7px 10px;border-radius:999px;background:rgba(7,21,37,.84);color:#fff;font-size:9px;font-weight:800}
.product-body{padding:21px}
.product-category{font-size:9px;letter-spacing:.06em;color:var(--blue);font-weight:800}
.product-body h3{font-family:var(--display);font-size:20px;line-height:1.35;margin:11px 0 8px}
.product-body h3 a:hover{color:var(--blue)}
.product-body p{font-size:13px;color:var(--muted);margin:0}
.file-tags{display:flex;gap:6px;flex-wrap:wrap;margin:17px 0}
.file-tags span{padding:6px 9px;border-radius:999px;background:#eaf1ff;color:#2857bd;font-size:9px;font-weight:800}
.product-footer{display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--line)}
.product-footer strong{font-family:var(--display);font-size:19px}
.product-footer a{font-size:12px;color:var(--blue);font-weight:700}

.validation-card{position:relative;overflow:hidden;border-radius:26px;padding:50px;display:grid;grid-template-columns:1fr .96fr;gap:58px;align-items:center;color:#fff;background:
linear-gradient(90deg,rgba(5,17,30,.95),rgba(7,27,46,.83)),
url("assets/engineering-background.png") center/cover no-repeat;box-shadow:0 28px 80px rgba(7,21,37,.19)}
.section-kicker-light{color:#7dd9ff}
.validation-copy p{font-size:16px;color:#c4d2de;margin:19px 0 25px}
.validation-list{display:grid;gap:10px}
.validation-list>div{display:grid;grid-template-columns:38px 1fr;gap:2px 12px;padding:15px;border:1px solid rgba(255,255,255,.14);border-radius:13px;background:rgba(255,255,255,.055)}
.validation-list span{grid-row:1/3;font-size:10px;font-weight:800;color:#7dd9ff;padding-top:2px}
.validation-list strong{font-size:13px}
.validation-list small{font-size:10px;color:#aebfce}
.validation-visual{padding:14px;border-radius:19px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
.comparison-header{display:flex;justify-content:space-between;align-items:center;padding:4px 4px 12px}
.comparison-header strong{font-size:12px}
.comparison-header span{font-size:9px;color:#9fb1c1}
.comparison-images{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.comparison-images img{width:100%;height:235px;object-fit:contain;background:#fff;border-radius:12px}
.comparison-note{display:flex;align-items:center;gap:9px;margin-top:10px;padding:12px;border-radius:12px;background:rgba(255,255,255,.07);font-size:10px;color:#dfeaf3}
.comparison-note span{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#dcfce7;color:var(--green);font-weight:800}

.custom-section{padding:18px 0 88px}
.custom-card{display:flex;justify-content:space-between;align-items:center;gap:44px;padding:43px;border-radius:24px;color:#fff;background:radial-gradient(circle at 90% 10%,#1d5789 0,transparent 35%),linear-gradient(135deg,var(--navy),var(--navy-2));box-shadow:0 30px 80px rgba(7,21,37,.18)}
.custom-card>div{max-width:800px}
.custom-card p{font-size:15px;color:#c6d3de;margin:18px 0 0}

.tutorial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tutorial-image{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:18px;margin-bottom:14px;background:#dce7f2}
.tutorial-image img{width:100%;height:100%;object-fit:cover}
.play{position:absolute;inset:0;margin:auto;width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.95);display:grid;place-items:center;color:var(--blue);padding-left:3px;box-shadow:0 14px 34px rgba(0,0,0,.20)}
.tutorial-card>span{font-size:9px;letter-spacing:.06em;color:var(--blue);font-weight:800}
.tutorial-card h3{font-family:var(--display);font-size:18px;line-height:1.4;margin:7px 0 0}

.newsletter-section{padding:0 0 82px}
.newsletter{display:flex;align-items:center;justify-content:space-between;gap:34px;padding:39px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(135deg,#fff,#f6f9ff)}
.newsletter h2{font-size:32px}
.newsletter form{display:flex;gap:10px;min-width:min(440px,100%)}
.newsletter input{height:50px;flex:1;min-width:0;border:1px solid #cbd5e1;border-radius:11px;padding:0 15px;outline:0}
.newsletter input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(43,100,232,.1)}

.site-footer{padding:72px 0 24px;background:#05101c;color:#dce6ef}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:58px}
.brand-footer .brand-mark{background:rgba(255,255,255,.06);color:#7dd9ff;box-shadow:none}
.brand-footer small{color:#8ea1b4}
.footer-brand p{max-width:420px;color:#91a5b8;font-size:13px;margin-top:20px}
.footer-grid h4{font-size:13px;color:#fff;margin:6px 0 18px}
.footer-grid>div:not(.footer-brand){display:flex;flex-direction:column;gap:10px}
.footer-grid>div:not(.footer-brand) a{font-size:12px;color:#9fb0c0}
.footer-grid a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:52px;padding-top:21px;border-top:1px solid rgba(255,255,255,.1);font-size:11px;color:#7f92a5}

.reveal{opacity:0;transform:translateY(17px);transition:opacity .65s ease,transform .65s ease}
.reveal.visible{opacity:1;transform:none}

@media (max-width:1100px){
  .main-nav{display:none;position:absolute;left:20px;right:20px;top:76px;flex-direction:column;align-items:stretch;padding:18px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .menu-toggle{display:block}
  .header-actions .sign-in{display:none}
  .hero-card{grid-template-columns:1fr;gap:42px;padding-bottom:58px}
  .hero-copy{text-align:center}
  .eyebrow,.hero-actions{justify-content:center}
  .hero-copy>p{margin-inline:auto}
  .hero-proof{max-width:760px;margin-inline:auto}
  .hero-showcase{width:min(760px,95%);margin-inline:auto}
  .audience-grid{grid-template-columns:1fr}
  .audience-card{min-height:330px}
  .field-grid{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .validation-card{grid-template-columns:1fr;gap:38px}
}

@media (max-width:760px){
  .container{width:min(var(--container),calc(100% - 28px))}
  .utility-bar{display:none}
  .header-inner{height:70px}
  .header-actions .button{display:none}
  .brand small{display:none}
  .hero-section{padding-top:16px}
  .hero-card{min-height:auto;border-radius:22px;padding:32px 22px 42px}
  .hero-copy h1{font-size:39px}
  .hero-copy>p{font-size:16px}
  .hero-actions .button{width:100%}
  .hero-proof{grid-template-columns:1fr;gap:10px;text-align:left}
  .hero-showcase{height:390px;width:100%}
  .showcase-main{width:78%;height:61%;left:0;top:18%}
  .showcase-top,.showcase-bottom{width:42%;height:27%}
  .validation-chip{left:4px;right:4px;width:auto;bottom:0}
  .format-chip{display:none}
  .search-panel{width:calc(100% - 20px);height:auto;grid-template-columns:auto 1fr;margin-top:-22px}
  .search-panel button{grid-column:1/3;width:100%}
  .popular-links{display:none}
  .audience-section{padding-top:58px}
  .audience-card{grid-template-columns:1fr;min-height:0}
  .audience-content{padding:27px}
  .audience-visual{height:220px;order:-1}
  .section{padding:68px 0}
  .section-heading{align-items:flex-start;flex-direction:column;margin-bottom:29px}
  .field-grid,.product-grid,.tutorial-grid{grid-template-columns:1fr}
  .validation-card{padding:29px 22px;border-radius:21px}
  .comparison-images img{height:175px}
  .custom-card{align-items:flex-start;flex-direction:column;padding:29px}
  .newsletter{align-items:flex-start;flex-direction:column;padding:27px}
  .newsletter form{min-width:100%;flex-direction:column}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-brand{grid-column:1/3}
  .footer-bottom{flex-direction:column}
}

@media (max-width:440px){
  .hero-copy h1{font-size:35px}
  .hero-showcase{height:340px}
  .audience-card h2{font-size:25px}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
}