/* ZYKAV — shared stylesheet. No external fonts or frameworks. */
:root{
  --navy-950:#050d17;--navy-900:#081524;--navy-800:#0c1f33;--navy-700:#13304a;
  --charcoal:#1a232e;--line-dark:#22384c;
  --teal:#2ee6c9;--teal-500:#14c7ae;--teal-700:#087a6b;
  --white:#fff;--paper:#f4f7f9;--line:#dde6ec;
  --ink:#0b1a2b;--ink-2:#33475b;--muted:#4f6275;
  --on-dark:#e6eef3;--on-dark-2:#b5c7d4;--on-dark-3:#8ea4b6;
  --amber:#f2b84b;
  --radius:14px;--radius-sm:8px;
  --shadow:0 10px 30px rgba(8,21,36,.06);
  --max:1200px;
  --font:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.65;font-size:16px}
img,svg{max-width:100%;height:auto}
a{color:var(--teal-700)}
a:hover{text-decoration-thickness:2px}
h1,h2,h3,h4{line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em;text-wrap:balance}
h1{font-size:clamp(38px,5.4vw,68px);letter-spacing:-.035em;font-weight:800}
h2{font-size:clamp(28px,3.4vw,44px);letter-spacing:-.025em;font-weight:780}
h3{font-size:20px;font-weight:720}
p{margin:0 0 1em;text-wrap:pretty}
ul{margin:0 0 1em;padding-left:1.2em}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:4px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:16px;top:-60px;z-index:100;background:var(--teal);color:var(--navy-950);padding:10px 16px;border-radius:6px;font-weight:700;text-decoration:none}
.skip-link:focus{top:12px}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(5,13,23,.94);backdrop-filter:saturate(140%) blur(10px);-webkit-backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line-dark);color:var(--on-dark)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.brand-mark{width:30px;height:30px;flex:none}
.brand-name{font-size:22px;font-weight:850;letter-spacing:.16em;line-height:1}
.brand-name span{color:var(--teal)}
.brand-sub{display:block;font-size:9.5px;letter-spacing:.18em;color:var(--on-dark-3);margin-top:5px;font-weight:600}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-menu a{display:block;color:var(--on-dark-2);text-decoration:none;font-size:13.5px;font-weight:550;padding:8px 10px;border-radius:6px}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-menu a[aria-current="page"]{color:#fff;box-shadow:inset 0 -2px 0 var(--teal);border-radius:0}
.nav-menu .nav-cta{margin-left:8px;background:var(--teal);color:var(--navy-950);font-weight:700;border-radius:7px;padding:9px 15px}
.nav-menu .nav-cta:hover{background:#6cf0db;color:var(--navy-950)}
.nav-menu .nav-cta[aria-current="page"]{box-shadow:none;border-radius:7px}
.nav-toggle{display:none;align-items:center;gap:8px;background:transparent;border:1px solid #35506a;color:#fff;border-radius:7px;padding:8px 12px;font:inherit;font-size:14px;cursor:pointer}
.nav-toggle-bars{width:18px;height:12px;position:relative;display:inline-block}
.nav-toggle-bars::before,.nav-toggle-bars::after,.nav-toggle-bars span{content:"";position:absolute;left:0;right:0;height:2px;background:currentColor;border-radius:2px;transition:transform .2s,opacity .2s}
.nav-toggle-bars::before{top:0}.nav-toggle-bars span{top:5px}.nav-toggle-bars::after{top:10px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span{opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-5px) rotate(-45deg)}
@media (max-width:1000px){
  .nav-toggle{display:inline-flex}
  .nav-menu{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--navy-950);border-bottom:1px solid var(--line-dark);padding:8px 16px 18px;max-height:calc(100vh - 72px);overflow-y:auto}
  .nav-menu.is-open{display:flex}
  .nav-menu a{padding:13px 10px;font-size:16px;border-bottom:1px solid #132739;border-radius:0}
  .nav-menu a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--teal);padding-left:14px}
  .nav-menu .nav-cta{margin:14px 0 0;text-align:center;border-bottom:0}
}

/* ---------- Buttons, labels ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 22px;border-radius:8px;border:1px solid var(--teal);background:var(--teal);color:var(--navy-950);font:inherit;font-size:15px;font-weight:700;text-decoration:none;cursor:pointer;transition:background .15s,border-color .15s,color .15s}
.btn:hover{background:#6cf0db;border-color:#6cf0db}
.btn--ghost{background:transparent;color:#fff;border-color:#4b6880}
.btn--ghost:hover{background:rgba(255,255,255,.06);border-color:#9bb2c3}
.btn--dark{background:var(--navy-900);border-color:var(--navy-900);color:#fff}
.btn--dark:hover{background:var(--navy-700);border-color:var(--navy-700)}
.btn[disabled]{opacity:.6;cursor:progress}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.eyebrow{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--teal-700);margin-bottom:12px}
.on-dark .eyebrow,.eyebrow--light{color:var(--teal)}
.lead{font-size:18px;color:var(--muted);max-width:760px}
.on-dark .lead{color:var(--on-dark-2)}
.text-link{font-weight:700;text-decoration:none;color:var(--teal-700)}
.text-link::after{content:" →"}
.text-link:hover{text-decoration:underline}
.on-dark .text-link{color:var(--teal)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:750;letter-spacing:.04em;padding:4px 10px;border-radius:100px;border:1px solid;white-space:nowrap}
.badge--now{color:#05634f;background:#e3f8f2;border-color:#9fe3d2}
.badge--planned{color:#7a4b00;background:#fff4dc;border-color:#f2d08a}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.chip{font-size:12.5px;padding:6px 12px;border-radius:100px;border:1px solid var(--line);color:var(--ink-2);background:#fff}
.on-dark .chip{border-color:#2d4a60;color:var(--on-dark-2);background:rgba(255,255,255,.02)}

/* ---------- Sections ---------- */
.section{padding:92px 0}
.section--alt{background:var(--paper)}
.section--dark{background:var(--navy-900);color:var(--on-dark)}
.section--charcoal{background:var(--charcoal);color:var(--on-dark)}
.section-head{max-width:820px;margin-bottom:40px}
.section-head--split{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;max-width:none}
.section-head--split > div{max-width:760px}
.on-dark h2,.on-dark h3{color:#fff}
.note{font-size:13px;color:var(--muted);max-width:860px}
.on-dark .note{color:var(--on-dark-3)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--navy-950);color:var(--on-dark);padding:96px 0 88px;isolation:isolate}
.hero::before{content:"";position:absolute;inset:-20%;z-index:-2;background:radial-gradient(40% 50% at 78% 30%,rgba(46,230,201,.16),transparent 70%),radial-gradient(35% 45% at 15% 85%,rgba(40,110,190,.18),transparent 70%),linear-gradient(140deg,#050d17 0%,#0a1c2e 60%,#08202b 100%);animation:drift 22s ease-in-out infinite alternate}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(70% 70% at 60% 40%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(70% 70% at 60% 40%,#000 30%,transparent 80%)}
@keyframes drift{0%{transform:translate3d(0,0,0)}100%{transform:translate3d(-4%,3%,0) scale(1.05)}}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:48px;align-items:center}
.hero h1{color:#fff;margin:6px 0 22px;font-size:clamp(38px,4.6vw,60px)}
.hero h1 em{font-style:normal;color:var(--teal)}
.hero p.hero-text{font-size:19px;color:var(--on-dark-2);max-width:620px}
.hero .chips{margin-top:40px}
.hero-visual{position:relative}
.hero-visual svg{display:block;width:100%;height:auto}
.page-hero{background:var(--navy-950);color:var(--on-dark);padding:76px 0 64px;position:relative;overflow:hidden;isolation:isolate}
.page-hero::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(45% 80% at 85% 10%,rgba(46,230,201,.13),transparent 70%),linear-gradient(140deg,#050d17,#0b2134)}
.page-hero h1{font-size:clamp(34px,4.6vw,56px);color:#fff;max-width:900px}
.page-hero .lead{color:var(--on-dark-2);font-size:19px}
.breadcrumb{font-size:13px;color:var(--on-dark-3);margin-bottom:18px}
.breadcrumb a{color:var(--on-dark-2)}

/* ---------- Diagram ---------- */
.dg-boundary{fill:none;stroke:#2c5a6e;stroke-width:1.5;stroke-dasharray:4 7}
.dg-edge{stroke:#2f5670;stroke-width:1.6}
.dg-node{fill:#0d2236;stroke:#2c4d66;stroke-width:1.4}
.dg-node--core{fill:#0e2d3a;stroke:var(--teal);stroke-width:2}
.dg-node--probe{fill:#2a1d0a;stroke:var(--amber);stroke-width:1.6}
.dg-label{fill:#e6eef3;font:600 13px var(--font)}
.dg-sub{fill:#8ea4b6;font:500 10.5px var(--font);letter-spacing:.04em}
.dg-core-label{fill:#fff;font:750 14px var(--font)}
.dg-probe-label{fill:#ffd894;font:650 12px var(--font)}
.dg-tag{fill:#5c7d93;font:600 10px var(--mono);letter-spacing:.12em}
.dg-probe-line{stroke:var(--amber);stroke-width:1.6;stroke-dasharray:5 7;fill:none;animation:dash 1.8s linear infinite}
.dg-flow{stroke:var(--teal);stroke-width:2;fill:none;stroke-dasharray:2 14;stroke-linecap:round;animation:dash 2.4s linear infinite;opacity:.85}
.dg-pulse{fill:none;stroke:var(--teal);stroke-width:1.5;transform-box:fill-box;transform-origin:center;animation:pulse 3.2s ease-out infinite}
.dg-mark{fill:var(--amber)}
.dg-shield{fill:none;stroke:var(--teal);stroke-width:1.6}
@keyframes dash{to{stroke-dashoffset:-48}}
@keyframes pulse{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.55);opacity:0}}

/* ---------- Cards & grids ---------- */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:border-color .2s,box-shadow .2s,transform .2s}
.card:has(a.text-link):hover{border-color:#b9d7d1;box-shadow:0 16px 40px rgba(8,21,36,.09);transform:translateY(-2px)}
.card--dark:has(a.text-link):hover{border-color:#2f5670;box-shadow:none}
.card h3{margin-top:4px}
.card p{color:var(--muted);font-size:15px}
.card ul{color:var(--ink-2);font-size:14.5px}
.card li{margin-bottom:6px}
.card .text-link{margin-top:auto;padding-top:8px}
.card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.card--dark{background:var(--navy-800);border-color:var(--line-dark);box-shadow:none;color:var(--on-dark)}
.card--dark p{color:var(--on-dark-2)}
.card--dark ul{color:var(--on-dark)}
.card--dark h3{color:#fff}
.card-num{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--teal-700);font-weight:700}
.card--dark .card-num{color:var(--teal)}
.icon{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;background:#e6f8f4;color:var(--teal-700);margin-bottom:14px}
.card--dark .icon{background:rgba(46,230,201,.1);color:var(--teal)}
.icon svg{width:22px;height:22px}

/* Flagship labs block on home */
.labs{position:relative;overflow:hidden;isolation:isolate}
.labs::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(50% 60% at 100% 0%,rgba(46,230,201,.10),transparent 70%)}
.labs-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:18px}
.labs-grid .card{grid-column:span 2}
.labs-grid .card--wide{grid-column:span 3}
.method{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start;margin-top:48px;padding:36px;border:1px solid var(--line-dark);border-radius:18px;background:rgba(255,255,255,.02)}
.method ol{margin:0;padding:0;list-style:none;counter-reset:m}
.method li{counter-increment:m;display:grid;grid-template-columns:36px 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--line-dark);color:var(--on-dark)}
.method li:last-child{border-bottom:0}
.method li::before{content:counter(m,decimal-leading-zero);font-family:var(--mono);color:var(--teal);font-size:13px;padding-top:2px}

/* Region / reg cards */
.region{border-left:4px solid var(--teal-500);background:#fff;border-radius:6px var(--radius) var(--radius) 6px;padding:24px 26px;box-shadow:var(--shadow)}
.region h3{margin-bottom:6px}
.region p{font-size:14.5px;color:var(--muted);margin:0}
.region .text-link{display:inline-block;margin-top:10px;font-size:14px}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;list-style:none;padding:0;margin:0;counter-reset:s}
.steps li{counter-increment:s;border-top:3px solid var(--teal-500);padding-top:18px}
.steps li::before{content:counter(s,decimal-leading-zero);display:block;font-family:var(--mono);font-size:13px;color:var(--teal-700);font-weight:700;margin-bottom:6px}
.on-dark .steps li::before{color:var(--teal)}
.steps b{display:block;font-size:18px;margin-bottom:6px}
.steps p{font-size:14.5px;color:var(--muted)}
.on-dark .steps p{color:var(--on-dark-2)}

/* Why list */
.why{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px}
.why div{padding:22px 0;border-top:1px solid var(--line)}
.why h3{font-size:18px;margin-bottom:6px}
.why p{color:var(--muted);font-size:15px;margin:0}

/* Detail blocks (consulting/services) */
.service{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:18px;box-shadow:var(--shadow)}
.service > summary{list-style:none;cursor:pointer;padding:24px 28px;display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center}
.service > summary::-webkit-details-marker{display:none}
.service > summary h3{margin:0}
.service > summary p{margin:4px 0 0;color:var(--muted);font-size:15px}
.service > summary::after{content:"+";font-size:26px;line-height:1;color:var(--teal-700);font-weight:400;width:28px;text-align:center}
.service[open] > summary::after{content:"–"}
.service > summary:hover h3{color:var(--teal-700)}
.service-body{padding:0 28px 28px;border-top:1px solid var(--line)}
.facets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px 32px;margin-top:24px}
.facets h4{font-size:12px;text-transform:uppercase;letter-spacing:.14em;color:var(--teal-700);margin-bottom:8px}
.facets p,.facets ul{font-size:14.5px;color:var(--ink-2);margin:0}
.facets li{margin-bottom:4px}
.frameworks{margin:22px 0 0}
.frameworks h4{font-size:12px;text-transform:uppercase;letter-spacing:.14em;color:var(--muted);margin-bottom:10px}

.region-head{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;margin:56px 0 18px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.region-head:first-of-type{margin-top:0}
.region-head h2{font-size:clamp(24px,2.6vw,32px);margin:0}
.region-head span{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.1em}

.subnav{position:sticky;top:72px;z-index:10;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.subnav ul{display:flex;gap:6px;list-style:none;margin:0;padding:10px 0;overflow-x:auto;scrollbar-width:thin}
.subnav a{display:block;white-space:nowrap;text-decoration:none;color:var(--ink-2);font-size:14px;font-weight:600;padding:7px 13px;border-radius:100px;border:1px solid var(--line)}
.subnav a:hover{border-color:var(--teal-500);color:var(--teal-700)}

/* Callouts */
.callout{border:1px solid var(--line);border-left:4px solid var(--amber);background:#fffbf1;border-radius:6px 12px 12px 6px;padding:18px 22px;font-size:14.5px;color:var(--ink-2)}
.callout strong{color:var(--ink)}
.on-dark .callout{background:rgba(242,184,75,.06);border-color:#3b3a2c;border-left-color:var(--amber);color:var(--on-dark-2)}
.on-dark .callout strong{color:#fff}
.placeholder{background:repeating-linear-gradient(135deg,#f7f9fb,#f7f9fb 10px,#eef3f6 10px,#eef3f6 20px);border:1px dashed #b8c7d2;border-radius:var(--radius);padding:24px;color:var(--muted)}
.placeholder strong{color:var(--ink)}

/* CTA band */
.cta-band{display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap;padding:44px 48px;border-radius:20px;background:linear-gradient(120deg,#0b2134,#0e3340);color:#fff;border:1px solid #1f4256}
.cta-band h2{margin:0 0 8px;color:#fff;font-size:clamp(24px,2.8vw,34px)}
.cta-band p{margin:0;color:var(--on-dark-2);max-width:620px}

/* Diagram figure (labs page) */
.figure{background:var(--navy-900);border:1px solid var(--line-dark);border-radius:18px;padding:24px}
.figure figcaption{font-size:13px;color:var(--on-dark-3);margin-top:12px}

/* ---------- Forms ---------- */
.form-wrap{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:48px;align-items:start}
.form{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.field{margin-bottom:18px}
.field--full{grid-column:1/-1}
.field label,.field legend{display:block;font-size:14px;font-weight:650;margin-bottom:6px;color:var(--ink)}
.req{color:#b42318}
.field input,.field select,.field textarea{display:block;width:100%;font:inherit;font-size:15px;color:var(--ink);background:#fff;border:1px solid #aebfcc;border-radius:8px;padding:11px 13px;min-height:46px}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal-700);box-shadow:0 0 0 3px rgba(20,199,174,.25)}
.field [aria-invalid="true"]{border-color:#b42318;box-shadow:0 0 0 3px rgba(180,35,24,.12)}
.hint{font-size:13px;color:var(--muted);margin-top:5px}
.error{font-size:13px;color:#b42318;margin-top:6px;font-weight:600}
.error:empty{display:none}
.check{display:grid;grid-template-columns:22px 1fr;gap:10px;align-items:start;font-size:14px;color:var(--ink-2)}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--teal-700)}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.form-status{margin-top:18px;padding:14px 16px;border-radius:8px;font-size:14.5px}
.form-status:empty{display:none}
.form-status--error{background:#fef3f2;border:1px solid #fecdca;color:#912018}
.form-status--ok{background:#ecfdf6;border:1px solid #a6f0d4;color:#05603a}
.error-summary{background:#fef3f2;border:1px solid #fecdca;color:#912018;border-radius:8px;padding:14px 18px;margin-bottom:22px;font-size:14.5px}
.error-summary[hidden]{display:none}
.error-summary ul{margin:6px 0 0}
.error-summary a{color:#912018}
.aside-list{list-style:none;padding:0;margin:0}
.aside-list li{padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2)}
.aside-list b{display:block;color:var(--ink)}

/* ---------- Prose (privacy) ---------- */
.prose{max-width:780px}
.prose h2{font-size:24px;margin-top:40px}
.prose p,.prose li{color:var(--ink-2)}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-950);color:var(--on-dark-2);padding:64px 0 32px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:32px}
.site-footer h2{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--on-dark-3);margin:0 0 14px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:9px}
.site-footer a{color:var(--on-dark);text-decoration:none}
.site-footer a:hover{color:var(--teal);text-decoration:underline}
.footer-brand p{max-width:340px;margin:14px 0 0}
.footer-parent{display:inline-block;margin-top:16px;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);font-weight:700}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line-dark);margin-top:44px;padding-top:22px;font-size:12.5px;color:var(--on-dark-3)}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{max-width:560px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .labs-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .labs-grid .card,.labs-grid .card--wide{grid-column:span 1}
  .labs-grid .card--wide:last-child{grid-column:1/-1}
  .method{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .facets{grid-template-columns:repeat(2,minmax(0,1fr))}
  .form-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:680px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding:64px 0}
  .hero{padding:64px 0 56px}
  .hero p.hero-text{font-size:17px}
  .page-hero{padding:56px 0 44px}
  .grid-2,.grid-3,.grid-4,.labs-grid,.why,.steps,.facets,.form-grid{grid-template-columns:1fr}
  .labs-grid .card--wide:last-child{grid-column:auto}
  .card,.form{padding:22px}
  .method{padding:22px}
  .service > summary{padding:20px}
  .service-body{padding:0 20px 22px}
  .cta-band{padding:30px 24px}
  .section-head--split{display:block}
  .actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr}
  .subnav{top:64px}
  .nav{min-height:64px}
  .brand-name{font-size:19px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
@media print{
  .site-header,.nav-toggle,.subnav,.cta-band,.site-footer{display:none}
  .hero,.page-hero,.section--dark{background:#fff;color:#000}
}

/* ---------- Small utilities ---------- */
.mt-xl{margin-top:48px}
.mt-l{margin-top:32px}
.dg-num{fill:#2a1d0a;font:800 11px var(--mono)}
.service-list > .region-head:first-child{margin-top:0}
.region-head{scroll-margin-top:140px}
[id]{scroll-margin-top:96px}
.h3{font-size:20px;font-weight:720}

/* =====================================================================
   v3 — enterprise upgrade components
   ===================================================================== */
@view-transition{navigation:auto}
::view-transition-old(root),::view-transition-new(root){animation-duration:.18s}
body{font-feature-settings:"ss01","cv11";-webkit-font-smoothing:antialiased}

/* Header dropdown */
.has-sub{position:relative}
.nav-sub-toggle{display:inline-flex;align-items:center;gap:5px;background:none;border:0;color:var(--on-dark-2);font:inherit;font-size:13.5px;font-weight:550;padding:8px 10px;border-radius:6px;cursor:pointer}
.nav-sub-toggle svg{width:12px;height:12px;transition:transform .15s}
.nav-sub-toggle:hover,.nav-sub-toggle[aria-expanded="true"]{color:#fff;background:rgba(255,255,255,.05)}
.nav-sub-toggle[aria-expanded="true"] svg{transform:rotate(180deg)}
.nav-sub-toggle.is-current{color:#fff;box-shadow:inset 0 -2px 0 var(--teal);border-radius:0}
.nav-sub{display:none;position:absolute;top:calc(100% + 10px);left:-12px;width:340px;list-style:none;margin:0;padding:8px;background:#0a1828;border:1px solid var(--line-dark);border-radius:12px;box-shadow:0 24px 60px rgba(0,0,0,.45)}
.nav-sub.is-open{display:block}
.nav-sub a{display:block;padding:11px 12px;border-radius:8px}
.nav-sub a b{display:block;color:#fff;font-size:14px;font-weight:650}
.nav-sub a span{display:block;color:var(--on-dark-3);font-size:12.5px;font-weight:450;margin-top:2px}
.nav-sub a:hover{background:rgba(46,230,201,.07)}
.nav-sub a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--teal);border-radius:4px 8px 8px 4px}
@media (min-width:1001px){.nav-menu a[data-nav="home"]{display:none}}
@media (max-width:1000px){
  .nav-sub-toggle{width:100%;justify-content:space-between;padding:13px 10px;font-size:16px;border-bottom:1px solid #132739;border-radius:0}
  .nav-sub-toggle.is-current{box-shadow:none}
  .nav-sub{position:static;width:auto;box-shadow:none;border:0;background:transparent;padding:0 0 6px 8px}
  .nav-sub a b{font-size:15px}
  .nav-menu a[data-nav="ai-security-labs-top"]{display:none}
}

/* Hero v3 */
.hero-proof{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:44px;border-top:1px solid #1d3346;max-width:640px}
.hero-proof div{padding:16px 18px 0 0}
.hero-proof b{display:block;color:#fff;font-size:14px}
.hero-proof span{display:block;color:var(--on-dark-3);font-size:13px;line-height:1.45;margin-top:3px}

/* Four pillars */
.pillars{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.pillar{padding:30px 26px;border-right:1px solid var(--line);display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:background .2s}
.pillar:last-child{border-right:0}
.pillar:hover{background:#f6fbfa}
.pillar:hover h3{color:var(--teal-700)}
.pillar--flag{background:var(--navy-900);color:var(--on-dark)}
.pillar--flag:hover{background:var(--navy-800)}
.pillar--flag h3,.pillar--flag:hover h3{color:#fff}
.pillar.pillar--flag p{color:var(--on-dark-2)}
.pillar.pillar--flag .card-num{color:var(--teal)}
.pillar h3{font-size:21px;margin:10px 0 8px;transition:color .2s}
.pillar p{font-size:14.5px;color:var(--muted);margin:0 0 16px}
.pillar ul{list-style:none;padding:0;margin:0 0 20px;font-size:13.5px;color:var(--ink-2)}
.pillar.pillar--flag ul{color:var(--on-dark)}
.pillar li{padding:6px 0;border-top:1px solid var(--line)}
.pillar.pillar--flag li{border-top-color:var(--line-dark)}
.pillar .more{margin-top:auto;font-size:14px;font-weight:700;color:var(--teal-700)}
.pillar.pillar--flag .more{color:var(--teal)}
.pillar .more::after{content:" →"}

/* Challenge → response rows */
.challenges{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.challenges li{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr) auto;gap:32px;align-items:start;padding:24px 0;border-bottom:1px solid var(--line)}
.challenges h3{font-size:18px;margin:0}
.challenges p{margin:0;color:var(--muted);font-size:15px}
.challenges a{white-space:nowrap;font-size:14px}

/* Audience / engagement blocks */
.audience{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:start}
.audience h2{margin-bottom:12px}
.audience-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.audience-list li{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 16px;font-size:14.5px;color:var(--ink-2)}
.audience-list b{display:block;color:var(--ink);font-size:15px;margin-bottom:2px}
.engage{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.engage .card{border-top:3px solid var(--teal-500)}
.engage .card h3{font-size:19px}
.engage dl{margin:auto 0 0;font-size:13.5px;display:grid;grid-template-columns:auto 1fr;gap:6px 12px;padding-top:12px;border-top:1px solid var(--line)}
.engage dt{color:var(--muted)}
.engage dd{margin:0;color:var(--ink);font-weight:600}

.status{display:flex;gap:8px;flex-wrap:wrap;margin:2px 0 12px}
.badge--dev{color:#4a3a8a;background:#efecff;border-color:#cfc7f7}
.card--dark .badge--now{background:rgba(46,230,201,.1);color:#7ff3df;border-color:#1d5f58}
.card--dark .badge--dev,.card--dark .badge--planned{background:rgba(242,184,75,.08);color:#ffd894;border-color:#5b4a26}

/* Trust grid */
.trust{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.trust div{padding:24px;border:1px solid var(--line-dark);border-radius:14px;background:rgba(255,255,255,.02)}
.trust h3{font-size:17px;color:#fff;margin-bottom:6px}
.trust p{font-size:14.5px;color:var(--on-dark-2);margin:0}

/* Briefings (insights) */
.brief{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px}
.brief > summary{list-style:none;cursor:pointer;padding:26px 28px;display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center}
.brief > summary::-webkit-details-marker{display:none}
.brief > summary::after{content:"Read";font-size:13px;font-weight:700;color:var(--teal-700);border:1px solid #b9d7d1;border-radius:100px;padding:5px 12px}
.brief[open] > summary::after{content:"Close"}
.brief h3{margin:4px 0 4px}
.brief summary p{margin:0;color:var(--muted);font-size:15px}
.brief .prose{padding:0 28px 28px;border-top:1px solid var(--line)}
.brief .prose h4{font-size:15px;margin:22px 0 6px}
.brief .prose p,.brief .prose li{font-size:15px}

/* Footer CTA */
.footer-cta{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap;padding:0 0 44px;margin-bottom:44px;border-bottom:1px solid var(--line-dark)}
.footer-cta-title{font-size:clamp(20px,2.2vw,26px)!important;letter-spacing:-.01em!important;text-transform:none!important;color:#fff!important;margin:0 0 6px!important;font-weight:750}
.footer-cta p{margin:0;color:var(--on-dark-2)}
.footer-cta a:not(.btn){color:var(--teal)}

/* Guided assistant */
.assist-launch{position:fixed;right:20px;bottom:20px;z-index:60;display:inline-flex;align-items:center;gap:8px;background:var(--navy-900);color:#fff;border:1px solid #2c4d66;border-radius:100px;padding:11px 16px;font:inherit;font-size:14px;font-weight:650;cursor:pointer;box-shadow:0 12px 30px rgba(0,0,0,.3)}
.assist-launch svg{width:18px;height:18px;color:var(--teal)}
.assist-launch:hover{border-color:var(--teal)}
.assist-launch[aria-expanded="true"]{display:none}
.assistant{position:fixed;right:20px;bottom:20px;z-index:61;width:min(380px,calc(100vw - 32px));max-height:min(600px,calc(100vh - 100px));display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 30px 70px rgba(5,13,23,.35);overflow:hidden}
.assistant[hidden]{display:none}
.assistant-head{display:flex;justify-content:space-between;gap:12px;padding:16px 18px;background:var(--navy-900);color:#fff}
.assistant-head h2{font-size:16px;margin:0 0 2px;color:#fff}
.assistant-head p{font-size:12px;color:var(--on-dark-3);margin:0;line-height:1.4}
.assistant-close{background:none;border:1px solid #35506a;color:#fff;border-radius:8px;width:32px;height:32px;font-size:20px;line-height:1;cursor:pointer;flex:none}
.assistant-body{padding:16px 18px 18px;overflow-y:auto}
.assistant-body .msg{background:var(--paper);border-radius:12px;padding:12px 14px;font-size:14.5px;color:var(--ink-2);margin-bottom:12px}
.assistant-body .msg b{color:var(--ink)}
.assistant-body .opts{display:grid;gap:8px}
.assistant-body .opt{text-align:left;background:#fff;border:1px solid #c9d7e0;border-radius:10px;padding:10px 12px;font:inherit;font-size:14px;color:var(--ink);cursor:pointer}
.assistant-body .opt:hover{border-color:var(--teal-700);background:#f3fbf9}
.assistant-body .opt--primary{background:var(--teal);border-color:var(--teal);font-weight:700;color:var(--navy-950);text-decoration:none;display:block}
.assistant-body .opt--back{border-style:dashed;color:var(--muted)}

/* Responsive v3 */
@media (max-width:1024px){
  .pillars{grid-template-columns:1fr 1fr}
  .pillar:nth-child(2){border-right:0}
  .pillar:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .pillar--flag{border-bottom-color:var(--line-dark)!important}
  .challenges li{grid-template-columns:1fr 1.3fr}
  .challenges li a{grid-column:2}
  .audience{grid-template-columns:1fr;gap:24px}
  .engage,.trust{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .pillars,.engage,.trust,.audience-list,.hero-proof{grid-template-columns:1fr}
  .pillar{border-right:0;border-bottom:1px solid var(--line)}
  .challenges li{grid-template-columns:1fr;gap:8px}
  .challenges li a{grid-column:auto}
  .hero-proof div{padding:14px 0 0}
  .assist-launch span{display:none}
  .assist-launch{padding:13px}
  .brief > summary{padding:20px}
  .brief .prose{padding:0 20px 22px}
}
@media print{.assist-launch,.assistant{display:none!important}}