/* Core On Dynamics — Physical AI homepage concept · LIGHT theme
   Color pattern follows huaweicloud.com/intl/en-us (measured): white #ffffff / #f7f7f7 / #f0f0f0 surfaces,
   #191919 text, #595959 secondary, #dfdfdf hairlines, one strong pill CTA color.
   Accent = Core On green: #157a57 (AA on white 5.3:1, on #f0f0f0 4.7:1) for text/buttons; #3ecf9a decorative only. */
:root{
  --bg:#ffffff; --bg-soft:#f7f7f7; --bg-mute:#f0f0f0; --card:#ffffff;
  --line:#dfdfdf; --line-2:#ececec;
  --text:#191919; --text-2:#595959; --text-3:#6b6b6b;
  --accent:#157a57; --accent-hover:#1c6b52; --brand:#3ecf9a; --brand-2:#6eecc0; --tint:#e8f6ef; --tint-2:#f2fbf7;
  --ph:#8a5300; --dark:#111111;
  --shadow:0 4px 10px rgba(138,141,147,.2); --shadow-lg:0 18px 40px -12px rgba(60,72,66,.22);
  --radius:12px; --wrap:1240px;
  --font:'Inter',-apple-system,'Helvetica Neue',Helvetica,Arial,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.mono{font-family:var(--mono)}
.muted{color:var(--text-2);font-weight:400}
.small{font-size:13px}
.eyebrow{font-family:var(--mono);font-size:12.5px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);display:flex;align-items:center;gap:10px;margin-bottom:16px}
.center .eyebrow{justify-content:center}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(62,207,154,.2);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.4}}
.accent{color:var(--accent)}
.tag{display:inline-block;font-family:var(--mono);font-size:11.5px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);background:var(--tint);border-radius:999px;padding:3px 10px;margin-bottom:12px}
.soon{font-style:normal;font-family:var(--mono);font-size:11px;color:var(--ph)}
.link-arrow{color:var(--accent);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.link-arrow::after{content:"→";transition:transform .2s}
.link-arrow:hover{color:var(--accent-hover)}
.link-arrow:hover::after{transform:translateX(4px)}

/* buttons: Huawei-style pills (solid accent + dark outline) */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-weight:600;font-size:15px;transition:.2s;white-space:nowrap}
.btn.sm{height:36px;padding:0 18px;font-size:14px}
.btn.lg{height:54px;padding:0 32px;font-size:16px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px -8px rgba(21,122,87,.6)}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-ghost{border:1px solid var(--text);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

/* ===== header ===== */
.site-header{position:sticky;top:0;z-index:50}
.topbar{background:var(--bg-soft);border-bottom:1px solid var(--line-2);font-size:12.5px;color:var(--text-2)}
.topbar-inner{display:flex;justify-content:space-between;height:34px;align-items:center}
.topbar-links{display:flex;gap:22px}
.topbar-links a:hover{color:var(--accent)}
.nav{background:rgba(255,255,255,.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);box-shadow:0 1px 3px rgba(0,0,0,.04)}
.nav-inner{display:flex;align-items:center;height:68px;gap:40px}
.brand{display:flex;align-items:center;gap:12px;line-height:1.05;font-size:15px;letter-spacing:.01em;color:var(--text)}
.brand b{font-weight:700}
.brand-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--accent));display:grid;place-items:center}
.brand-mark i{width:12px;height:12px;border:2.5px solid #fff;border-radius:50%}
.nav-menu{display:flex;list-style:none;gap:4px;height:100%}
.nav-menu>li{display:flex;align-items:center}
.nav-link{height:100%;padding:0 16px;font-size:15px;font-weight:500;color:var(--text);position:relative}
.nav-link::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:var(--accent);transform:scaleX(0);transition:.2s}
.has-mega:hover .nav-link,.has-mega.open .nav-link{color:var(--accent)}
.has-mega:hover .nav-link::after,.has-mega.open .nav-link::after{transform:scaleX(1)}
.mega{position:absolute;left:0;right:0;top:100%;background:#fff;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line);box-shadow:0 24px 40px -18px rgba(0,0,0,.18);opacity:0;visibility:hidden;transform:translateY(-6px);transition:.18s}
.has-mega:hover .mega,.has-mega.open .mega{opacity:1;visibility:visible;transform:none}
.mega-inner{display:grid;grid-template-columns:300px 1fr;gap:48px;padding-top:36px;padding-bottom:40px}
.mega-intro{padding-right:32px;border-right:1px solid var(--line-2)}
.mega-intro h3{font-size:22px;line-height:1.25;margin-bottom:10px}
.mega-intro p:not(.eyebrow){color:var(--text-2);font-size:14.5px;margin-bottom:18px}
.mega-cols{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px;align-content:start}
.mega-item{padding:14px 16px;border-radius:8px;border:1px solid transparent;display:flex;flex-direction:column;gap:2px;transition:.15s}
.mega-item .tag{align-self:flex-start;margin-bottom:6px;font-size:10.5px}
.mega-item b{font-size:16px}
.mega-item span:last-child{color:var(--text-2);font-size:13.5px}
.mega-item:hover{background:var(--bg-soft)}
.mega-item:hover b{color:var(--accent)}
.nav-cta{margin-left:auto;display:flex;gap:10px}
.burger{display:none;margin-left:auto;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.burger span{width:22px;height:2px;background:var(--text);transition:.2s}

/* ===== hero (light, soft gradient like Huawei's banner) ===== */
.hero{position:relative;min-height:700px;overflow:hidden;border-bottom:1px solid var(--line-2)}
.hero-bg{position:absolute;inset:0;background:
  radial-gradient(900px 520px at 78% 38%,rgba(62,207,154,.20),transparent 62%),
  radial-gradient(700px 420px at 95% 95%,rgba(120,170,255,.14),transparent 60%),
  radial-gradient(600px 400px at 0% 0%,rgba(110,236,192,.14),transparent 60%),
  linear-gradient(115deg,#f5faf8 0%,#ffffff 42%,#f3f7f6 100%)}
.grid-floor{position:absolute;left:-10%;right:-10%;bottom:-40%;height:80%;background-image:linear-gradient(rgba(21,122,87,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(21,122,87,.10) 1px,transparent 1px);background-size:64px 64px;transform:perspective(700px) rotateX(62deg);mask-image:linear-gradient(to top,#000 10%,transparent 70%);-webkit-mask-image:linear-gradient(to top,#000 10%,transparent 70%)}
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .7s,visibility .7s}
.slide.is-active{position:relative;opacity:1;visibility:visible}
.slide-inner{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:center;min-height:700px;padding-top:56px;padding-bottom:96px}
.slide-copy h1,.h1{font-size:clamp(40px,4.5vw,64px);line-height:1.06;letter-spacing:-.03em;font-weight:800;margin-bottom:24px;color:var(--text)}
.lede{color:var(--text-2);font-size:18px;max-width:560px;margin-bottom:34px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.slide-visual{position:relative}
.hero-3d{position:relative;aspect-ratio:4/3;border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.9);
  background:radial-gradient(circle at 50% 38%,#f9fbfa 0%,#e9f0ed 52%,#d6e2dd 100%);
  box-shadow:0 30px 70px -28px rgba(40,70,60,.35),0 2px 6px rgba(0,0,0,.05)}
.hero-3d model-viewer{width:100%;height:100%;--poster-color:transparent;background:transparent}
.hero-fallback{width:100%;height:100%;object-fit:cover}
.hero-3d .static-fallback{display:none;width:100%;height:100%;object-fit:cover}
.hero-3d.no-model model-viewer{display:none}
.hero-3d.no-model .static-fallback{display:block}
.hud{position:absolute;left:16px;right:16px;top:14px;display:flex;justify-content:space-between;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-2);pointer-events:none}
.hud-live{color:var(--accent)}
.hud-live::before{content:"● ";animation:pulse 1.6s infinite}
.model-switch{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:flex;gap:4px;padding:4px;border-radius:999px;background:rgba(255,255,255,.9);border:1px solid var(--line);box-shadow:var(--shadow)}
.model-switch[hidden]{display:none}
.model-switch button{white-space:nowrap;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;padding:6px 14px;border-radius:999px;color:var(--text-2)}
.model-switch button.is-active{background:var(--accent);color:#fff}
.hero-3d.no-model .model-switch{display:none}
.slide-img{border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-lg)}
.code-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 0 18px;box-shadow:var(--shadow-lg);font-size:15px}
.code-head{display:flex;align-items:center;gap:7px;padding:14px 18px;border-bottom:1px solid var(--line-2);color:var(--text-2);font-size:12.5px;background:var(--bg-soft);border-radius:16px 16px 0 0}
.code-head i{width:10px;height:10px;border-radius:50%;background:#d6d6d6}
.code-head i:first-child{background:var(--brand)}
.code-head span{margin-left:10px}
.code-card pre{padding:22px 24px 8px;line-height:1.75;color:var(--text);overflow-x:auto}
.code-card .c{color:#6b6b6b} .code-card .k{color:#7b3fb3} .code-card .f{color:var(--accent)} .code-card .t{color:var(--ph)}
.code-note{padding:0 24px;color:var(--text-3);font-size:11.5px}
.hero-controls{position:absolute;left:0;right:0;bottom:36px;display:flex;align-items:center;gap:18px;z-index:3}
.dots{display:flex;gap:10px}
.dots button{width:34px;height:4px;border-radius:2px;background:#cfcfcf;transition:.3s}
.dots button.is-active{width:56px;background:var(--accent)}
.pause{font-size:11px;color:var(--text-2);border:1px solid var(--line);border-radius:999px;width:30px;height:30px;background:#fff}

/* quick strip (Huawei 4-up under banner) */
.quick{background:var(--bg-soft);border-bottom:1px solid var(--line-2)}
.quick-inner{display:grid;grid-template-columns:repeat(4,1fr)}
.quick a{padding:24px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:3px;transition:.2s;position:relative}
.quick a:first-child{border-left:1px solid var(--line)}
.quick a b{font-size:16px}
.quick a span{color:var(--text-2);font-size:14px}
.quick a::after{content:"→";position:absolute;right:22px;top:50%;transform:translateY(-50%);color:var(--text-3);transition:.2s}
.quick a:hover{background:#fff}
.quick a:hover b{color:var(--accent)}
.quick a:hover::after{color:var(--accent);right:16px}

/* sections: white / #f7f7f7 alternating */
.section{padding:110px 0;background:var(--bg)}
.section.slim{padding:80px 0}
.section.alt{background:var(--bg-soft)}
.sec-head{margin-bottom:52px;max-width:760px}
.sec-head.center{text-align:center;margin-left:auto;margin-right:auto}
.sec-head.split{display:flex;justify-content:space-between;align-items:flex-end;max-width:none}
.sec-head h2,.company h2,.cta h2{font-size:clamp(30px,3.2vw,44px);line-height:1.15;letter-spacing:-.02em;font-weight:700;color:var(--text)}
.sub{color:var(--text-2);font-size:18px;margin-top:16px}

/* stack */
.stack{border:1px solid var(--line);border-radius:20px;padding:28px;background:var(--bg-soft)}
.stack-flow{display:grid;grid-template-columns:1fr 28px 1fr 28px 1fr 28px 1fr;align-items:stretch}
.flow-step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 22px;transition:.25s;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.flow-step:hover,.flow-step.lit{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand),var(--shadow-lg);transform:translateY(-3px)}
.flow-step.act{background:linear-gradient(160deg,var(--tint),#fff 70%)}
.step-n{font-size:11.5px;font-weight:500;color:var(--accent);letter-spacing:.1em;text-transform:uppercase}
.flow-step h3{font-size:24px;margin:10px 0 2px;letter-spacing:-.01em}
.role{font-size:12px;color:var(--ph);margin-bottom:12px}
.flow-step p:last-child{color:var(--text-2);font-size:14.5px}
.flow-arrow{position:relative}
.flow-arrow::before{content:"";position:absolute;top:50%;left:4px;right:4px;height:2px;background:linear-gradient(90deg,var(--brand-2),var(--accent))}
.flow-arrow::after{content:"";position:absolute;top:calc(50% - 5px);right:2px;border:6px solid transparent;border-left-color:var(--accent);border-right:0}
.stack-base{margin-top:24px;display:flex;align-items:center;gap:28px;padding:22px 28px;border-radius:14px;border:1px dashed #9fd9c2;background:repeating-linear-gradient(90deg,rgba(21,122,87,.05) 0 1px,transparent 1px 22px),#fff}
.stack-base img{width:86px;filter:drop-shadow(0 10px 16px rgba(0,0,0,.18))}
.stack-base h3{font-size:22px;margin:4px 0}
.stack-base p{color:var(--text-2)}

/* tabs */
.ptabs,.itabs{display:flex;justify-content:center;gap:6px;margin-bottom:40px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.ptabs button,.itabs button{padding:14px 20px;font-size:15.5px;font-weight:500;color:var(--text-2);position:relative}
.ptabs button::after,.itabs button::after{content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;background:var(--accent);transform:scaleX(0);transition:.2s}
.ptabs button:hover,.itabs button:hover{color:var(--text)}
.ptabs button.is-active,.itabs button.is-active{color:var(--text);font-weight:600}
.ptabs button.is-active::after,.itabs button.is-active::after{transform:scaleX(1)}

/* product cards: white, thin border, subtle shadow */
.pgrid{display:grid;grid-template-columns:1.3fr 1fr 1fr;grid-auto-rows:minmax(250px,auto);gap:20px}
.pcard{background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius);padding:30px;display:flex;flex-direction:column;transition:.25s;box-shadow:var(--shadow)}
.pcard:hover{border-color:var(--line);transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.pcard h3{font-size:22px;margin-bottom:8px}
.pcard p{color:var(--text-2);font-size:15px;margin-bottom:20px;flex:1}
.pcard .tag{align-self:flex-start}
.pcard-icon svg{width:44px;height:44px;fill:none;stroke:var(--accent);stroke-width:2;stroke-linejoin:round;stroke-linecap:round;margin-bottom:18px}
.pcard.featured{grid-row:span 2;padding:0;overflow:hidden}
.pcard-img{height:340px;position:relative;display:grid;place-items:center;background:radial-gradient(circle at 50% 62%,rgba(62,207,154,.28),transparent 58%),linear-gradient(160deg,#f4faf7,#e6efeb)}
.pcard-img.has-img .float-module{display:none}
.float-module{width:170px;filter:drop-shadow(0 26px 30px rgba(20,40,32,.35));transform:perspective(800px) rotateX(18deg) rotateZ(-8deg);animation:float 6s ease-in-out infinite}
@keyframes float{50%{transform:perspective(800px) rotateX(18deg) rotateZ(-8deg) translateY(-10px)}}
.pcard-body{padding:30px;display:flex;flex-direction:column;flex:1}
.pcard-body .btn{align-self:flex-start}
.pcard.hide{display:none}

/* industry panels */
.ipanel{display:none;grid-template-columns:1.2fr 1fr;border:1px solid var(--line-2);border-radius:16px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.ipanel.is-active{display:grid;animation:fade .45s}
@keyframes fade{from{opacity:0;transform:translateY(8px)}}
.ipanel-img{min-height:440px;position:relative}
.ipanel-copy{padding:48px 44px;display:flex;flex-direction:column;justify-content:center}
.ipanel-copy h3{font-size:30px;line-height:1.2;letter-spacing:-.02em;margin-bottom:14px}
.ipanel-copy>p{color:var(--text-2);margin-bottom:22px}
.ipanel-copy .tag{align-self:flex-start}
.checks{list-style:none;margin-bottom:26px;display:grid;gap:10px}
.checks li{padding-left:28px;position:relative;color:var(--text);font-size:15px}
.checks li::before{content:"";position:absolute;left:0;top:4px;width:17px;height:17px;border-radius:50%;background:var(--tint)}
.checks li::after{content:"";position:absolute;left:5px;top:9px;width:7px;height:4px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}

/* image slots: bright gradient placeholders until a real image is dropped in */
.slot{position:relative;background-size:cover;background-position:center;background-color:#eef3f1}
.slot:not(.has-img){background-image:radial-gradient(600px 300px at 70% 30%,rgba(62,207,154,.28),transparent 60%),radial-gradient(500px 300px at 10% 90%,rgba(120,170,255,.16),transparent 60%),repeating-linear-gradient(135deg,rgba(21,122,87,.04) 0 2px,transparent 2px 14px),linear-gradient(160deg,#f6fbf9,#e4ede9)}
[data-panel="steel"] .slot:not(.has-img){background-image:radial-gradient(420px 260px at 40% 60%,rgba(255,150,70,.30),transparent 60%),radial-gradient(500px 300px at 80% 20%,rgba(255,200,120,.25),transparent 60%),linear-gradient(160deg,#fbf6f1,#efe6dd)}
.slot-label{display:none}
body.show-slots .slot{outline:2px dashed #c77700;outline-offset:-8px}
body.show-slots .slot::before{content:"IMAGE SLOT · " attr(data-slot);position:absolute;left:16px;top:16px;z-index:2;font:500 11px var(--mono);color:#fff;background:var(--ph);padding:4px 8px;border-radius:4px}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.why{padding:32px;border-radius:var(--radius);border:1px solid var(--line-2);background:#fff;transition:.25s;box-shadow:var(--shadow)}
.why:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.why-n{color:var(--accent);font-size:13px;font-weight:500}
.why h3{font-size:22px;margin:14px 0 8px}
.why p{color:var(--text-2);font-size:15px}
.why.quote{background:linear-gradient(150deg,var(--tint),#fff 80%);display:flex;flex-direction:column;justify-content:space-between;gap:18px;border-color:#cdeedf}
.why.quote p{color:var(--text);font-size:19px;line-height:1.45;font-weight:500}

/* stats (Huawei "Global Infrastructure" style: big dark numerals on white) */
.stats{position:relative;padding:80px 0;overflow:hidden;background:#fff;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.stats-bg{position:absolute;inset:0}
.stats-bg:not(.has-img){background-image:radial-gradient(800px 260px at 50% 120%,rgba(62,207,154,.14),transparent 70%),repeating-linear-gradient(90deg,rgba(21,122,87,.05) 0 1px,transparent 1px 80px),linear-gradient(180deg,#ffffff,#f7f7f7)}
.stats-bg.has-img{opacity:.25}
.stats-inner{position:relative;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px}
.stat{padding-left:22px;border-left:3px solid var(--brand)}
.stat b{display:block;font-size:52px;line-height:1.1;font-weight:800;letter-spacing:-.03em;color:var(--text)}
.stat b.ph{font-size:32px;line-height:1.65;font-family:var(--mono);font-weight:500;color:var(--ph)}
.stat span{color:var(--text-2);font-size:14.5px;display:block;margin-top:6px;max-width:240px}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ncard{border:1px solid var(--line-2);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.25s;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.ncard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.ncard-img{aspect-ratio:16/10}
.ncard-body{padding:22px}
.meta{font-size:11.5px;color:var(--accent);letter-spacing:.04em;font-weight:500}
.ncard h3{font-size:17px;line-height:1.35;margin:8px 0}
.ncard p{color:var(--text-2);font-size:14px}
.ncard:hover h3{color:var(--accent)}

/* company */
.company{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:center}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.facts div{background:#fff;padding:22px}
.facts dt{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3)}
.facts dd{font-size:16px;font-weight:600;margin-top:4px}
.facts a{color:var(--accent)}

/* cta: soft green-tinted band */
.cta{position:relative;padding:100px 0;overflow:hidden;background:#fff}
.cta-bg{position:absolute;inset:0}
.cta-bg:not(.has-img){background-image:radial-gradient(900px 400px at 88% 50%,rgba(62,207,154,.30),transparent 60%),radial-gradient(600px 300px at 0% 0%,rgba(120,170,255,.14),transparent 60%),linear-gradient(120deg,#eef8f3,#f7f7f7)}
.cta-bg.has-img{opacity:.35}
.cta-inner{position:relative;display:flex;justify-content:space-between;align-items:center;gap:40px}
.cta p{color:var(--text-2);font-size:18px;margin-top:14px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* footer: Huawei uses a light-gray footer; dark legal strip at the very bottom */
.footer{background:var(--bg-mute);border-top:1px solid var(--line);padding:64px 0 0;font-size:14.5px;color:var(--text-2)}
.foot-top{display:grid;grid-template-columns:1fr 2.2fr;gap:56px;padding-bottom:48px}
.foot-brand p{color:var(--text-2);margin-top:16px}
.foot-brand a[href^=mailto]{color:var(--accent)}
.social{display:flex;gap:10px;margin-top:18px}
.social a{width:36px;height:36px;border-radius:50%;border:1px solid #c9c9c9;display:grid;place-items:center;font-weight:700;font-size:13px;color:var(--text);background:#fff}
.social a:hover{border-color:var(--accent);color:var(--accent)}
.foot-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.foot-cols h4{font-size:15px;color:var(--text);margin-bottom:14px}
.foot-cols a{display:block;color:var(--text-2);padding:5px 0}
.foot-cols a:hover{color:var(--accent)}
.foot-bottom{background:var(--dark);color:#c2c2c2;font-size:12.5px}
.foot-bottom-inner{display:flex;justify-content:space-between;gap:24px;padding-top:20px;padding-bottom:20px;flex-wrap:wrap}
.foot-bottom .muted{color:#c2c2c2;max-width:640px}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}

/* ===== responsive ===== */
@media (max-width:1100px){
  .nav-menu,.nav-cta{display:none}
  .burger{display:flex}
  .nav.open{backdrop-filter:none;-webkit-backdrop-filter:none;background:#fff}
  .nav.open .nav-menu{display:flex;flex-direction:column;position:fixed;top:102px;left:0;right:0;bottom:0;background:#fff;overflow-y:auto;padding:12px 20px 40px;gap:0;height:auto}
  .nav.open .nav-menu>li{flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line)}
  .nav.open .nav-link{height:60px;text-align:left;font-size:18px;padding:0 4px;display:flex;justify-content:space-between;align-items:center;color:var(--text)}
  .nav.open .nav-link::after{content:"+";position:static;transform:none;background:none;color:var(--accent);height:auto;font-size:22px}
  .nav.open .has-mega.open .nav-link::after{content:"–"}
  .nav.open .mega{position:static;opacity:1;visibility:visible;transform:none;display:none;background:none;border:0;box-shadow:none}
  .nav.open .has-mega.open .mega{display:block}
  .nav.open .mega-inner{grid-template-columns:1fr;padding:0 0 16px;gap:8px}
  .nav.open .mega-intro{display:none}
  .nav.open .mega-cols{grid-template-columns:1fr}
  .nav.open .mega-item{background:var(--bg-soft);border-radius:8px}
  .nav.open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav.open .burger span:nth-child(2){opacity:0}
  .nav.open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .slide-inner{grid-template-columns:1fr;gap:36px;padding-top:48px;padding-bottom:110px;min-height:0}
  .hero{min-height:0}
  .stack-flow{grid-template-columns:1fr 1fr;gap:16px}
  .flow-arrow{display:none}
  .pgrid{grid-template-columns:1fr 1fr}
  .pcard.featured{grid-row:auto;grid-column:span 2}
  .why-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .stats-inner{grid-template-columns:1fr 1fr;row-gap:40px}
  .company{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .foot-top{grid-template-columns:1fr}
}
@media (max-width:720px){
  .wrap{padding:0 20px}
  .topbar-links a:not(.lang){display:none}
  .topbar-inner>span.mono{font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .topbar-inner{gap:12px}
  .model-switch{bottom:10px}
  .model-switch button{padding:5px 10px;font-size:10.5px}
  .hud{font-size:10px}
  .nav-inner{height:60px}
  .nav.open .nav-menu{top:94px}
  .section{padding:76px 0}
  .slide-inner{padding-top:36px;padding-bottom:100px;gap:28px}
  .slide-copy h1,.h1{font-size:40px}
  br.d{display:none}
  .lede{font-size:16.5px}
  .cta-row .btn{flex:1}
  .hero-controls{bottom:28px}
  .quick-inner{grid-template-columns:1fr 1fr}
  .quick a{padding:18px 16px;border-left:0!important;border-bottom:1px solid var(--line)}
  .quick a:nth-child(2n){border-right:0}
  .quick a::after{display:none}
  .quick a span{font-size:13px}
  .stack{padding:14px;border-radius:16px}
  .stack-flow{grid-template-columns:1fr}
  .stack-base{flex-direction:column;align-items:flex-start;gap:14px;padding:20px}
  .ptabs,.itabs{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-left:-20px;margin-right:-20px;padding:0 12px}
  .ptabs::-webkit-scrollbar,.itabs::-webkit-scrollbar{display:none}
  .ptabs button,.itabs button{white-space:nowrap;padding:12px 14px;font-size:15px}
  .pgrid{grid-template-columns:1fr}
  .pcard.featured{grid-column:auto}
  .pcard-img{height:240px}
  .ipanel.is-active{grid-template-columns:1fr}
  .ipanel-img{min-height:220px}
  .ipanel-copy{padding:28px 22px}
  .ipanel-copy h3{font-size:24px}
  .why-grid,.news-grid{grid-template-columns:1fr}
  .stats-inner{grid-template-columns:1fr 1fr;gap:28px 16px}
  .stat{padding-left:14px}
  .stat b{font-size:40px}
  .stat b.ph{font-size:21px}
  .sec-head.split{flex-direction:column;align-items:flex-start;gap:14px}
  .facts{grid-template-columns:1fr}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .foot-cols{grid-template-columns:1fr 1fr}
  .code-card{font-size:12px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
/* keep the model clear of the caption (top) and the switch (bottom) */
.hero-3d model-viewer{position:absolute;top:34px;left:0;right:0;bottom:58px;width:auto;height:auto}
@media (max-width:720px){.hero-3d model-viewer{top:30px;bottom:50px}}

/* content-driven blocks (site-content.js) */
[hidden]{display:none!important}
.pilot-band{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:32px 36px;border:1px solid #cdeedf;border-radius:16px;background:linear-gradient(120deg,var(--tint),#fff 70%);box-shadow:var(--shadow)}
.pilot-band .eyebrow{margin-bottom:6px}
.pilot-band h3{font-size:26px;letter-spacing:-.01em}
.stories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.scard{background:#fff;border:1px solid var(--line-2);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.scard .tag{align-self:flex-start}
.scard h3{font-size:20px;margin-bottom:8px}
.scard p{color:var(--text-2);font-size:15px;margin-bottom:18px;flex:1}
@media (max-width:720px){.pilot-band{flex-direction:column;align-items:flex-start;padding:24px}.pilot-band .btn{width:100%}.pilot-band h3{font-size:22px}}