:root{--blue:#0874e7;--navy:#092d6c;--cyan:#00a9d8;--red:#ef3f43;--yellow:#ffbd16;--green:#23ad63;--purple:#7a4de8;--ink:#15243a;--muted:#607089;--line:#e4eaf1;--soft:#f6f9fd;--white:#fff;--shadow:0 18px 50px rgba(17,51,92,.10);--radius:20px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:var(--ink);background:#fff}img{max-width:100%;display:block}button,input,textarea,select{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.container{width:min(1380px,92vw);margin:auto}.narrow{width:min(900px,92vw)}
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.site-footer{background:#081f45;color:#c7d5e7;padding:48px 0 20px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}.footer-brand img{width:120px;background:#fff;border-radius:12px;padding:5px}.footer-brand p{max-width:420px;line-height:1.6;font-size:12px}.site-footer h4{color:#fff;margin-top:0}.site-footer a{display:block;color:#b7c7dd;font-size:12px;margin:8px 0}.site-footer a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;font-size:10px;color:#879db9}
.search-modal{position:fixed;inset:0;background:rgba(4,25,56,.65);z-index:120;display:none;padding:8vh 15px}.search-modal.open{display:block}.search-box{width:min(760px,95vw);margin:auto;background:#fff;border-radius:22px;padding:28px;position:relative}.close-x{position:absolute;right:18px;top:12px;border:0;background:transparent;font-size:28px}.search-box h2{color:var(--navy)}.search-box input{width:100%;border:1px solid var(--line);border-radius:13px;padding:14px}.search-results{display:grid;gap:7px;margin-top:12px;max-height:50vh;overflow:auto}.search-result{padding:12px;border:1px solid var(--line);border-radius:10px}.search-result b{display:block;color:var(--navy)}.search-result span{font-size:11px;color:var(--muted)}.toast{position:fixed;right:18px;bottom:18px;background:#092d6c;color:#fff;padding:12px 16px;border-radius:12px;z-index:140;opacity:0;transform:translateY(10px);transition:.2s;pointer-events:none;font-size:12px;box-shadow:var(--shadow)}.toast.show{opacity:1;transform:none}
@media(max-width:1200px){.main-nav{display:none}.nav-toggle{display:block;order:3}.main-nav.open{display:flex;position:absolute;left:0;right:0;top:82px;background:#fff;padding:18px 4vw;flex-wrap:wrap;box-shadow:var(--shadow)}.main-nav a{padding:7px 0}.product-grid{grid-template-columns:repeat(2,1fr)}.exhibitor-grid{grid-template-columns:repeat(2,1fr)}.event-feature{grid-template-columns:110px 1fr 300px}}
@media(max-width:850px){.header-inner{height:72px}.brand{min-width:0}.official-logo{width:88px;height:50px}.platform-label small{display:none}.hero-grid{grid-template-columns:1fr}.hero-copy{padding:45px 0 15px}.hero h1,.page-hero h1{font-size:43px}.hero-photo{height:380px}.stem-strip-grid{grid-template-columns:1fr 1fr}.story-grid,.policy-layout,.stem-definition,.integration-case,.form-layout,.contact-grid,.checkout-grid,.page-hero-split{grid-template-columns:1fr}.news-grid{grid-template-columns:1fr}.policy-grid{grid-template-columns:1fr}.gallery-grid{grid-template-columns:1fr 1fr}.stem-detail-grid{grid-template-columns:1fr}.shop-layout{grid-template-columns:1fr}.shop-filter{position:static}.news-wide{grid-template-columns:1fr}.news-wide img{height:260px}.event-feature{grid-template-columns:1fr}.event-feature>img{height:280px}.feature-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.cta-inner{align-items:flex-start;flex-direction:column}.policy-mini{max-width:500px}}
@media(max-width:560px){.container{width:min(94vw,100%)}.platform-label{display:none}.hero h1,.page-hero h1{font-size:37px}.hero p,.page-hero p{font-size:15px}.micro-stats{gap:13px}.stem-strip-grid{grid-template-columns:1fr}.stem-strip-grid a{border-right:0;border-bottom:1px solid var(--line)}.section{padding:48px 0}.section-head{align-items:flex-start;flex-direction:column}.section-head h2{font-size:28px}.product-grid,.gallery-grid{grid-template-columns:1fr}.product-img img{height:190px}.policy-layout h2{font-size:31px}.policy-mini{grid-template-columns:1fr 1fr 1fr}.stem-detail{grid-template-columns:58px 1fr;padding:18px}.stem-letter{width:52px;height:52px;font-size:29px}.integration-map{grid-template-columns:1fr}.toolbar{align-items:stretch;flex-direction:column}.filter-input{min-width:0;width:100%}.exhibitor-grid{grid-template-columns:1fr}.pro-form .two{grid-template-columns:1fr}.feature-grid{grid-template-columns:1fr}.seller-nav{overflow:auto}.seller-nav button{min-width:150px}.seller-panel{padding:18px}.footer-grid{grid-template-columns:1fr}.footer-bottom{gap:10px;flex-direction:column}.manage-row{grid-template-columns:55px 1fr auto}.manage-row .manage-price{display:none}}


/* =========================================================
   STEM BLOCK / BRICK VISUAL SYSTEM
   Inspired by colourful construction blocks, without altering
   the official NeuroKhalifah corporate logo.
   ========================================================= */
:root{
  --stem-red:#ef3340;
  --stem-yellow:#ffc928;
  --stem-blue:#0874e7;
  --stem-green:#29b765;
  --stem-purple:#7d47d9;
  --block-shadow:0 7px 0 rgba(14,35,72,.11);
}
.stem-block-ribbon{
  min-height:12px;display:flex;align-items:center;gap:7px;padding:4px max(4vw,calc((100vw - 1380px)/2));
  background:#fff;border-bottom:1px solid #edf1f6;overflow:hidden;position:relative;z-index:5
}
.stem-block-ribbon span{
  width:30px;height:24px;border-radius:4px 4px 6px 6px;color:#fff;font-weight:900;font-size:12px;
  display:grid;place-items:center;box-shadow:inset 0 -4px 0 rgba(0,0,0,.10);position:relative
}
.stem-block-ribbon span:before,.stem-block-ribbon i:before{
  content:"";position:absolute;width:8px;height:4px;border-radius:50%;background:rgba(255,255,255,.38);top:-2px;left:5px
}
.stem-block-ribbon .s{background:var(--stem-red)} .stem-block-ribbon .t{background:var(--stem-yellow);color:#5b4300}
.stem-block-ribbon .e{background:var(--stem-blue)} .stem-block-ribbon .m{background:var(--stem-green)}
.stem-block-ribbon i{width:23px;height:14px;border-radius:3px;background:#dfe7f4;display:block;position:relative}
.stem-block-ribbon i:nth-of-type(2){background:#a984e8}.stem-block-ribbon i:nth-of-type(3){background:#ff9b37}
.stem-block-ribbon i:nth-of-type(4){background:#52cfe6}.stem-block-ribbon i:nth-of-type(5){background:#f25e73}

.page-hero,.hero{
  position:relative;isolation:isolate;overflow:hidden
}
.page-hero:after,.hero:after{
  content:"";position:absolute;z-index:-1;right:-55px;top:25px;width:180px;height:120px;opacity:.22;
  background:
   radial-gradient(circle at 16px 11px,rgba(255,255,255,.7) 0 6px,transparent 7px),
   linear-gradient(90deg,var(--stem-yellow) 0 33%,var(--stem-blue) 33% 66%,var(--stem-green) 66%);
  background-size:32px 24px,100% 100%;border-radius:18px;transform:rotate(-10deg);box-shadow:var(--block-shadow)
}
.brick-hero{
  background:
   radial-gradient(circle at 15px 13px,rgba(255,255,255,.30) 0 5px,transparent 6px) 0 0/34px 28px,
   linear-gradient(120deg,#e9f8ff 0%,#f8fbff 52%,#fff3bd 100%)
}
.btn.primary{box-shadow:0 5px 0 #0755a9,0 12px 24px rgba(8,116,231,.16)}
.btn.gold{box-shadow:0 5px 0 #e39a00,0 12px 24px rgba(255,185,11,.14)}
.btn:active{transform:translateY(3px);box-shadow:none!important}
.product-card,.news-card,.exhibitor-grid article,.feature-grid>div,.policy-card,.admin-card,.brick-card{
  border-top-width:5px!important
}
.product-card:nth-child(4n+1),.feature-grid>div:nth-child(4n+1),.admin-card:nth-child(4n+1){border-top-color:var(--stem-red)!important}
.product-card:nth-child(4n+2),.feature-grid>div:nth-child(4n+2),.admin-card:nth-child(4n+2){border-top-color:var(--stem-yellow)!important}
.product-card:nth-child(4n+3),.feature-grid>div:nth-child(4n+3),.admin-card:nth-child(4n+3){border-top-color:var(--stem-blue)!important}
.product-card:nth-child(4n),.feature-grid>div:nth-child(4n),.admin-card:nth-child(4n){border-top-color:var(--stem-green)!important}
.product-card:hover,.exhibitor-grid article:hover{transform:translateY(-5px) rotate(.15deg)}
.seller-chip{font-size:11px;font-weight:750;color:#51617b;background:#f3f7fb;border-radius:999px;padding:6px 9px;margin:9px 0}
.backend-note{grid-column:1/-1;padding:16px;border:1px dashed #b6c4d7;border-radius:14px;color:#65758d;background:#f8fbff}
.auth-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:28px;align-items:start}
.brick-card{position:relative;border:1px solid #e5eaf1;border-top:6px solid var(--stem-blue);box-shadow:var(--block-shadow);border-radius:20px}
.brick-card:before{content:"";position:absolute;right:22px;top:-11px;width:12px;height:7px;border-radius:50%;background:#fff;border:2px solid #dbe4ef}
.seller-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px}
.status-approved{color:#169853;font-weight:800}.status-pending{color:#ca8500;font-weight:800}.status-rejected{color:#c73737;font-weight:800}
.center{text-align:center}.narrow{max-width:560px}.hidden{display:none!important}
.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.admin-card{border:1px solid #e3e9f1;border-radius:18px;padding:18px;background:#fff;box-shadow:0 8px 25px rgba(14,47,92,.06)}
.admin-row{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:12px 0;border-bottom:1px solid #edf0f4}
.admin-row>div:first-child{min-width:0}.admin-row b{display:block;font-size:13px}.admin-row span{display:block;font-size:11px;color:#6e7b90;margin-top:3px}
.admin-row button,.admin-row select{border:1px solid #dce4ed;background:#fff;border-radius:8px;padding:6px 8px;font-size:11px;font-weight:800}
.admin-row button:first-child{background:#eaf9f0;color:#187747}.admin-row button:last-child{background:#fff0f1;color:#a82c37}
@media(max-width:850px){.auth-grid,.admin-grid{grid-template-columns:1fr}.stem-block-ribbon{padding-left:4vw}.seller-toolbar{align-items:flex-start}}


/* v5 Hybrid Marketplace: fair discovery + Official Store */
.marketplace-fair{background:linear-gradient(180deg,#fff,#f8fbff)}
.section-sub{margin:.45rem 0 0;color:#687990;max-width:760px;line-height:1.6;font-size:14px}
.fairness-note{display:flex;gap:14px;align-items:center;background:#f3fbf6;border:1px solid #bfe8cc;border-left:6px solid var(--stem-green);padding:14px 16px;border-radius:14px;margin-bottom:20px}
.fairness-note b{white-space:nowrap;color:#147b43}.fairness-note span{font-size:13px;color:#536479}
.official-store-section{background:linear-gradient(120deg,#fff8d8,#f7fbff)}
.official-store-section .section-head{border-left:6px solid var(--stem-yellow);padding-left:15px}
.seller-badge{display:inline-flex;align-items:center;gap:4px;border-radius:999px;padding:5px 8px;font-size:10px;font-weight:900;letter-spacing:.02em}
.product-img{position:relative}
.product-img .seller-badge{position:absolute;left:10px;top:10px;z-index:2;box-shadow:0 3px 10px rgba(0,0,0,.1)}
.seller-badge.official{background:#fff0a8;color:#654a00;border:1px solid #f0cc39}
.seller-badge.verified{background:#e8f5ff;color:#075caa;border:1px solid #b8dcfa}
.fulfilment-line{font-size:11px;color:#758399;margin:7px 0 10px;font-weight:700}
.stock-label{font-size:11px;color:#647287;font-weight:800}
.category-showcase{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.category-showcase>div{background:#fff;border:1px solid #e4eaf2;border-radius:18px;padding:18px;box-shadow:0 8px 22px rgba(14,47,92,.06);border-top:5px solid var(--stem-blue)}
.category-showcase>div:nth-child(2){border-top-color:var(--stem-yellow)}.category-showcase>div:nth-child(3){border-top-color:var(--stem-green)}.category-showcase>div:nth-child(4){border-top-color:var(--stem-red)}
.category-showcase img{width:100%;height:120px;object-fit:contain}.category-showcase b{display:block;margin-top:10px}.category-showcase span{display:block;font-size:12px;color:#6d7c91;margin-top:5px}
.marketplace-role-strip{background:#0f2a59;color:#fff}.role-strip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.role-strip-grid>div{padding:17px 22px;border-right:1px solid rgba(255,255,255,.14)}.role-strip-grid>div:last-child{border-right:0}
.role-strip-grid b{display:block;font-size:13px;color:#ffd04a}.role-strip-grid span{display:block;font-size:11px;color:#d4e1f3;margin-top:4px;line-height:1.45}
.seller-type-filter{margin-bottom:20px}
.checkout-breakdown{border-top:1px solid #e6ebf2;margin-top:18px;padding-top:12px}
.checkout-breakdown>div{display:flex;justify-content:space-between;padding:7px 0}.checkout-breakdown .checkout-total{font-size:19px;border-top:1px solid #dfe5ee;margin-top:6px;padding-top:13px}
.seller-fulfilled-note{display:flex;gap:10px;flex-direction:column;background:#f4f8fd;border:1px solid #d8e5f3;border-radius:14px;padding:14px;margin-top:16px}
.seller-fulfilled-note b{color:#143d73}.seller-fulfilled-note span{font-size:12px;color:#627289;line-height:1.5}
.seller-orders{display:grid;gap:14px}.seller-order-card{background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:16px;border-top:5px solid var(--stem-blue)}
.seller-order-head{display:flex;justify-content:space-between;gap:12px}.seller-order-head b,.seller-order-head span{display:block}.seller-order-head span{font-size:11px;color:#708096;margin-top:4px}
.seller-order-card p{font-size:12px;color:#5e6e84}.order-actions{display:grid;grid-template-columns:1fr 1fr 1.4fr auto;gap:8px}.order-actions select,.order-actions input{border:1px solid #dce4ed;border-radius:9px;padding:8px}
.admin-actions{display:flex;gap:5px;flex-wrap:wrap}.type-btn{background:#edf0ff!important;color:#433898!important}
.legal-copy{max-width:950px}.legal-copy h2{color:var(--blue-dark)}.legal-copy h3{margin-top:24px}.legal-copy p{color:#586a82;line-height:1.75}
@media(max-width:900px){.category-showcase{grid-template-columns:1fr 1fr}.role-strip-grid{grid-template-columns:1fr}.role-strip-grid>div{border-right:0;border-bottom:1px solid rgba(255,255,255,.14)}.order-actions{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.category-showcase{grid-template-columns:1fr}.fairness-note{align-items:flex-start;flex-direction:column}.order-actions{grid-template-columns:1fr}}


/* v6 Management Console */
.admin-body{background:#f5f8fc}
.admin-toolbar{background:#fff;border:1px solid #e5ebf3;border-radius:18px;padding:18px 20px;box-shadow:0 8px 25px rgba(14,47,92,.05)}
.admin-toolbar-actions{display:flex;gap:8px}
.role-badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 9px;font-size:10px;font-weight:900;letter-spacing:.04em;margin-top:5px}
.role-owner{background:#fff0b6;color:#725000;border:1px solid #f3ce4e}
.role-admin{background:#e8efff;color:#264f9c;border:1px solid #b8cbf6}
.role-manager{background:#e8f8ee;color:#25724a;border:1px solid #b9e6c9}
.role-staff{background:#f0f2f6;color:#5f6c81;border:1px solid #d8dee8}
.role-official{background:#fff0b6;color:#725000;border:1px solid #f3ce4e}
.admin-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:18px 0}
.summary-card{border:1px solid #e0e7f0;background:#fff;border-radius:16px;padding:18px;text-align:left;box-shadow:0 7px 20px rgba(14,47,92,.05)}
.summary-card b{display:block;font-size:30px;color:var(--blue-dark)}.summary-card span{font-size:12px;color:#6b7a90}
.management-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 22px}
.management-tabs button{border:1px solid #dfe6ef;background:#fff;padding:9px 13px;border-radius:999px;font-weight:800;font-size:12px}
.management-tabs button.active{background:var(--stem-blue);color:#fff;border-color:var(--stem-blue)}
.admin-panel-view{display:none}.admin-panel-view.active{display:block}
.subhead{margin-top:26px}
.management-user-layout{display:grid;grid-template-columns:minmax(300px,.7fr) 1.3fr;gap:20px;align-items:start}
.management-user-row .admin-actions{align-items:center}
.management-user-row select{min-width:120px}
.you-tag{display:inline-flex;background:#e8f4ff;color:#1460a8;border-radius:999px;padding:2px 6px;font-size:8px;margin-left:5px}
.permission-list{display:grid;gap:12px}.permission-list>div{padding:13px;border:1px solid #e5ebf2;border-radius:12px;background:#fafcff}
.permission-list b{display:block;color:var(--blue-dark)}.permission-list span{display:block;font-size:12px;color:#65758b;margin-top:4px;line-height:1.5}
.audit-table{display:grid}.audit-row{display:grid;grid-template-columns:150px 1fr 1.4fr;gap:14px;padding:11px 0;border-bottom:1px solid #edf1f5}
.audit-row time{font-size:10px;color:#7e8b9d}.audit-row b{display:block;font-size:12px}.audit-row span,.audit-row small{display:block;font-size:10px;color:#6d7b8e;margin-top:2px}
.admin-bootstrap-note{background:#fff8d7;border:1px solid #f0d46a;border-left:5px solid var(--stem-yellow);border-radius:14px;padding:14px 16px;margin-bottom:16px}
.admin-bootstrap-note b{color:#715000}.admin-bootstrap-note p{margin:5px 0 0;font-size:12px;color:#705f2f;line-height:1.5}
.mini-row{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid #edf1f5}.mini-row b{font-size:12px}.mini-row span{font-size:10px;color:#6e7d91}
@media(max-width:900px){.admin-summary{grid-template-columns:1fr 1fr}.management-user-layout{grid-template-columns:1fr}.audit-row{grid-template-columns:1fr}}
@media(max-width:560px){.admin-summary{grid-template-columns:1fr 1fr}.admin-toolbar{align-items:flex-start}.admin-toolbar-actions{flex-direction:column}}

/* v7 additions */
.mini-input{width:78px;padding:6px 8px;border:1px solid #cbd5e1;border-radius:8px;font:inherit}
.must-change-banner{background:#fff7e0;border:1px solid #f2c94c;color:#6b4e00;padding:14px 18px;border-radius:12px;margin:0 0 18px}
.admin-card .hint{color:#64748b;font-size:.9rem;margin:0 0 12px}
.manage-price{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
#trackResult .admin-row small{display:block;color:#64748b}


/* =========================================================
   v8 PROFESSIONAL EXPERIENCE — STEM + KPM + NKA
   ========================================================= */
:root{--navy:#0b2e68;--royal:#0876e8;--cyan:#16b7e8;--lego-red:#ef3340;--lego-yellow:#ffc72c;--lego-green:#25b96b;--lego-blue:#0874e7;--surface:#f6f9fd;--ink-soft:#53657c}
body{letter-spacing:-.005em}.site-header{box-shadow:0 1px 0 rgba(19,48,88,.08)}
.ecosystem-bar{background:#092a60;color:#d9e8fb;font-size:11px}.ecosystem-bar>.container{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:16px}.ecosystem-bar span{font-weight:800;color:#fff}.ecosystem-bar nav{display:flex;gap:18px}.ecosystem-bar a{color:#d9e8fb;font-weight:700}.ecosystem-bar a:hover{color:#fff}
.hero-home{background:radial-gradient(circle at 15% 20%,rgba(22,183,232,.12),transparent 26%),linear-gradient(135deg,#f8fcff 0%,#eef8ff 56%,#fff8df 100%)}
.hero-copy h1{max-width:760px}.hero-copy>p{max-width:710px}.btn.ghost{background:#fff;color:var(--navy);border:1px solid #dce5ef;box-shadow:0 7px 18px rgba(16,49,91,.06)}
.kpm-home{background:#0a2d67;color:#fff;position:relative;overflow:hidden}.kpm-home:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 75% 20%,rgba(255,199,44,.13),transparent 28%),radial-gradient(circle at 15% 85%,rgba(22,183,232,.15),transparent 25%);pointer-events:none}.kpm-home>.container{position:relative}.kpm-home-head{display:grid;grid-template-columns:230px 1fr;gap:30px;align-items:center;margin-bottom:24px}.kpm-home h2{color:#fff;font-size:36px;margin:.4rem 0}.kpm-home p{color:#d9e6f7;line-height:1.7}.kpm-mark{background:#fff;color:#0b2e68;border-radius:18px;padding:18px 20px;box-shadow:0 10px 30px rgba(0,0,0,.15);border-left:8px solid var(--lego-red);position:relative}.kpm-mark:after{content:"";display:block;height:6px;background:linear-gradient(90deg,var(--lego-blue) 0 34%,var(--lego-yellow) 34% 67%,var(--lego-red) 67%);position:absolute;bottom:0;left:0;right:0;border-radius:0 0 18px 18px}.kpm-mark span{display:block;font-weight:950;font-size:36px;letter-spacing:.04em}.kpm-mark small{display:block;font-size:9px;font-weight:850;line-height:1.4}.kpm-mark.large{max-width:440px}.kpm-mark.large span{font-size:42px}.kpm-home-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:22px 0}.kpm-home-grid a{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:17px;padding:18px;color:#fff;transition:.2s}.kpm-home-grid a:hover{transform:translateY(-4px);background:rgba(255,255,255,.13)}.kpm-home-grid b,.kpm-home-grid span,.kpm-home-grid em{display:block}.kpm-home-grid b{font-size:15px}.kpm-home-grid span{font-size:12px;line-height:1.55;color:#d7e5f6;margin:8px 0 14px}.kpm-home-grid em{font-style:normal;font-size:11px;color:#ffd85a;font-weight:800}.kpm-disclaimer{font-size:11px;line-height:1.5;color:#b9cce5;margin:12px 0 20px}.kpm-disclaimer.on-dark{color:#d4e1f2}.kpm-reference-banner{display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center;margin:20px 0 26px}.kpm-reference-banner>p{color:#d6e4f5!important}
.nka-home{background:#fff}.nka-home-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.nka-home-copy h2{font-size:40px;color:var(--navy);margin:.4rem 0 1rem}.nka-home-copy>p{font-size:16px;line-height:1.75;color:var(--ink-soft)}.nka-proof{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:22px 0}.nka-proof span{background:#f5f9fe;border:1px solid #e2eaf3;border-radius:14px;padding:13px;font-size:11px;color:#617187}.nka-proof b{display:block;color:var(--navy);font-size:14px;margin-bottom:3px}.nka-photo-stack{position:relative;min-height:390px}.nka-photo-stack img{position:absolute;object-fit:cover;border-radius:22px;box-shadow:0 18px 38px rgba(13,47,91,.18)}.nka-photo-stack img:first-child{width:78%;height:330px;right:0;top:0}.nka-photo-stack img:nth-child(2){width:48%;height:200px;left:0;bottom:0;border:7px solid #fff}.nka-stamp{position:absolute;right:16px;bottom:22px;width:104px;height:104px;border-radius:50%;display:grid;place-items:center;text-align:center;background:var(--lego-yellow);color:#102e5b;font-weight:950;line-height:1.05;transform:rotate(-7deg);box-shadow:0 10px 25px rgba(0,0,0,.16)}
.academy-hero{padding:70px 0;background:linear-gradient(135deg,#edf9ff,#fff 54%,#fff6d8)}.academy-hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:48px;align-items:center}.academy-hero h1{font-size:52px;line-height:1.02;color:var(--navy);max-width:760px;margin:.6rem 0 1.2rem}.academy-hero p{font-size:17px;line-height:1.75;color:#50647e}.academy-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:28px}.academy-stats>div{background:#fff;border:1px solid #e3eaf3;border-radius:14px;padding:13px}.academy-stats b,.academy-stats span{display:block}.academy-stats b{color:var(--navy);font-size:15px}.academy-stats span{font-size:10px;color:#718095;margin-top:3px}.academy-collage{position:relative;min-height:470px}.academy-main{width:82%;height:420px;object-fit:cover;border-radius:26px;position:absolute;right:0;top:0;box-shadow:0 24px 48px rgba(10,48,99,.2)}.academy-small{position:absolute;object-fit:cover;border:7px solid #fff;border-radius:18px;box-shadow:0 15px 30px rgba(10,48,99,.16)}.academy-small.a{width:45%;height:185px;left:0;top:55px}.academy-small.b{width:46%;height:175px;left:35px;bottom:0}.academy-tag{position:absolute;right:20px;bottom:12px;background:#092c65;color:#fff;padding:12px 16px;border-radius:999px;font-weight:850;font-size:12px}.nka-value-grid,.branch-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.nka-value-grid article,.branch-grid article{background:#fff;border:1px solid #e1e8f1;border-radius:18px;padding:20px;border-top:5px solid var(--lego-blue);box-shadow:0 8px 24px rgba(13,47,91,.05)}.nka-value-grid article:nth-child(2),.branch-grid article:nth-child(2){border-top-color:var(--lego-yellow)}.nka-value-grid article:nth-child(3),.branch-grid article:nth-child(3){border-top-color:var(--lego-green)}.nka-value-grid article:nth-child(4),.branch-grid article:nth-child(4){border-top-color:var(--lego-red)}.nka-value-grid span,.branch-grid b{font-size:12px;font-weight:950;color:#7d8da2}.nka-value-grid h3,.branch-grid h3{color:var(--navy);margin:.7rem 0}.nka-value-grid p,.branch-grid p{font-size:13px;line-height:1.6;color:#617188}.academy-recognition{background:#0a2d67;color:#fff;padding:55px 0}.recognition-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}.recognition-grid h2{font-size:34px;margin:.5rem 0}.recognition-grid p{color:#d7e4f4;line-height:1.7}.recognition-panel{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.recognition-panel span{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:18px;text-align:center;font-weight:850}
.product-image-button,.product-title-button{border:0;background:transparent;padding:0;text-align:inherit;color:inherit;width:100%;cursor:pointer}.product-card-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.product-card-actions .btn{padding:10px 8px}.product-title-button{font-weight:inherit;font-size:inherit}.product-modal{position:fixed;inset:0;background:rgba(6,28,62,.58);z-index:500;display:none;place-items:center;padding:22px;backdrop-filter:blur(5px)}.product-modal.open{display:grid}.product-modal-card{width:min(920px,96vw);max-height:92vh;overflow:auto;background:#fff;border-radius:24px;position:relative;padding:28px;box-shadow:0 35px 90px rgba(0,0,0,.28)}.product-modal-close{position:absolute;right:15px;top:12px;width:38px;height:38px;border:0;border-radius:50%;background:#eef3f8;font-size:24px;z-index:2}.product-modal-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px}.product-modal-image{position:relative;background:#f4f8fc;border-radius:18px;min-height:390px;display:grid;place-items:center;overflow:hidden}.product-modal-image img{width:100%;height:100%;max-height:440px;object-fit:contain}.product-modal-image .seller-badge{position:absolute;left:14px;top:14px}.product-modal-copy h2{color:var(--navy);font-size:32px;margin:.7rem 0}.product-modal-copy>p{color:#596b82;line-height:1.7}.modal-seller{font-size:13px;color:#65758b}.modal-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:20px 0}.modal-facts span{background:#f5f8fc;border-radius:12px;padding:12px}.modal-facts small,.modal-facts b{display:block}.modal-facts small{font-size:9px;color:#7b899b}.modal-facts b{font-size:14px;color:var(--navy);margin-top:4px}.modal-trust{border-left:4px solid var(--lego-green);background:#f0fbf4;padding:12px;border-radius:10px;font-size:12px;font-weight:750;color:#306a4a}.modal-actions{display:flex;gap:10px;margin-top:20px}.seller-edit-card{max-width:660px}.manage-actions{display:flex;gap:7px;margin-left:auto}.manage-row>div:nth-child(2){min-width:0;flex:1}.manage-row small{display:block;margin-top:4px}.back-to-top{position:fixed;right:20px;bottom:22px;width:46px;height:46px;border-radius:50%;border:0;background:#0b2e68;color:#fff;font-size:20px;box-shadow:0 10px 25px rgba(7,35,77,.23);opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s;z-index:80}.back-to-top.show{opacity:1;pointer-events:auto;transform:none}
@media(max-width:1100px){.kpm-home-grid{grid-template-columns:1fr 1fr}.kpm-home-head{grid-template-columns:190px 1fr}.nka-home-grid,.academy-hero-grid{grid-template-columns:1fr}.nka-photo-stack,.academy-collage{min-height:430px}.nka-value-grid,.branch-grid{grid-template-columns:1fr 1fr}.academy-stats{grid-template-columns:1fr 1fr}}
@media(max-width:720px){.ecosystem-bar>.container{align-items:flex-start;padding-top:8px;padding-bottom:8px}.ecosystem-bar span{display:none}.ecosystem-bar nav{gap:11px;overflow:auto;white-space:nowrap;width:100%}.kpm-home-head,.kpm-reference-banner{grid-template-columns:1fr}.kpm-home-grid{grid-template-columns:1fr}.nka-proof{grid-template-columns:1fr}.academy-hero h1{font-size:39px}.nka-value-grid,.branch-grid{grid-template-columns:1fr}.recognition-grid{grid-template-columns:1fr}.recognition-panel{grid-template-columns:1fr 1fr}.product-modal-grid{grid-template-columns:1fr}.product-modal-image{min-height:260px}.modal-actions{flex-direction:column}.product-card-actions{grid-template-columns:1fr}.nka-home-copy h2{font-size:33px}}

.not-found{min-height:100vh;display:grid;place-items:center;padding:30px;background:linear-gradient(135deg,#eef9ff,#fff7d9)}.not-found>div{max-width:650px;text-align:center}.not-found img{width:150px;margin:0 auto 24px}.not-found h1{font-size:48px;color:var(--navy);margin:.6rem 0}.not-found p{color:#617188;line-height:1.7}


/* v8.1 — Sample STEM product listings + exhibitor template */
.sample-product-section{background:linear-gradient(180deg,#ffffff 0%,#f5f9ff 100%)}
.sample-product-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.sample-product-card{display:grid;grid-template-columns:220px 1fr;background:#fff;border:1px solid #e1e8f1;border-radius:22px;overflow:hidden;box-shadow:0 12px 34px rgba(17,50,94,.08);border-top:6px solid var(--stem-blue)}
.sample-product-card:nth-child(2){border-top-color:var(--stem-green)}
.sample-product-media{position:relative;display:grid;place-items:center;min-height:300px;padding:28px;background:linear-gradient(145deg,#eaf7ff,#fff8d7)}
.sample-product-card:nth-child(2) .sample-product-media{background:linear-gradient(145deg,#ecfff1,#eaf7ff)}
.sample-product-media img{width:100%;max-width:170px;height:180px;object-fit:contain}
.sample-badge{position:absolute;left:14px;top:14px;background:#112f61;color:#fff;border-radius:999px;padding:6px 10px;font-size:9px;font-weight:900;letter-spacing:.08em}
.sample-product-content{padding:22px}
.sample-topline{display:flex;align-items:center;justify-content:space-between;gap:12px}
.sample-price{font-size:22px;color:#0d56a6}
.sample-product-content h3{font-size:22px;color:var(--blue-dark);margin:12px 0 8px}
.sample-product-content>p{color:#5a6d84;line-height:1.65;margin:0 0 14px}
.sample-meta{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.sample-meta span{background:#f5f8fc;border:1px solid #e3e9f1;border-radius:10px;padding:7px 9px;font-size:11px;color:#58697f}
.sample-meta small{color:#8b97a8}
.stem-breakdown{border:1px solid #dbe5f0;border-radius:14px;overflow:hidden;margin-top:14px}
.stem-breakdown summary{cursor:pointer;padding:12px 14px;font-size:12px;font-weight:900;color:#133b72;background:#f8fbff}
.stem-breakdown[open] summary{border-bottom:1px solid #dbe5f0}
.stem-relation-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px;padding:12px}
.stem-relation-grid>div{border-radius:11px;padding:10px;color:#fff;min-height:84px}
.stem-relation-grid b{display:block;font-size:11px;margin-bottom:4px}
.stem-relation-grid span{font-size:10px;line-height:1.45}
.rel-s{background:#d94343}.rel-t{background:#df9a00}.rel-e{background:#1f69c6}.rel-m{background:#278451}
.sample-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}
.template-download-section{background:#fff}
.template-download-card{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;background:linear-gradient(120deg,#eaf7ff,#fff7d7);border:1px solid #d9e6f4;border-radius:24px;padding:28px;box-shadow:0 10px 30px rgba(14,47,92,.06)}
.template-download-card h2{margin:6px 0 8px;color:var(--blue-dark)}
.template-download-card p{color:#596c84;line-height:1.65;max-width:850px}
.template-points{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.template-points span{background:#fff;border:1px solid #dce6f1;border-radius:999px;padding:7px 10px;font-size:11px;font-weight:800;color:#415876}
.seller-template-strip{background:#0f2a59;color:#fff;border-top:1px solid rgba(255,255,255,.1)}
.seller-template-inner{display:flex;justify-content:space-between;gap:20px;align-items:center;padding-top:14px;padding-bottom:14px}
.seller-template-inner b,.seller-template-inner span{display:block}.seller-template-inner b{color:#ffd34d}.seller-template-inner span{font-size:11px;color:#dbe6f6;margin-top:3px}
@media(max-width:980px){.sample-product-grid{grid-template-columns:1fr}.sample-product-card{grid-template-columns:190px 1fr}.template-download-card{grid-template-columns:1fr}}
@media(max-width:650px){.sample-product-card{grid-template-columns:1fr}.sample-product-media{min-height:210px}.stem-relation-grid{grid-template-columns:1fr}.seller-template-inner{align-items:flex-start;flex-direction:column}}