/* ============================================================
   EngageNexus — "Cobalt Nexus" bespoke design system
   ink #0C1116 · slate #1B2530 · cobalt #315EFF · ivory #F5F3EE · warm grey #8A8E96
   Syne (display) + Manrope (body)
   ============================================================ */

:root{
  --ink:#0C1116;
  --slate:#1B2530;
  --cobalt:#315EFF;
  --cobalt-bright:#4f74ff;
  --ivory:#F5F3EE;
  --warm-grey:#8A8E96;
  --hairline:rgba(49,94,255,.35);
  --hairline-soft:rgba(138,142,150,.28);
  --maxw:1200px;
  --pad-section:112px;
  --radius:14px;
  --shadow-soft:0 18px 50px -24px rgba(12,17,22,.55);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  font-family:"Manrope",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-weight:400;
  font-size:17px;
  line-height:1.65;
  color:var(--ink);
  background:var(--ivory);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3{
  font-family:"Syne","Manrope",system-ui,sans-serif;
  font-weight:800;
  line-height:1.06;
  letter-spacing:-.015em;
  margin:0 0 .5em;
}
h1{font-size:clamp(38px,6vw,72px)}
h2{font-size:clamp(28px,3.6vw,46px);font-weight:700}
h3{font-size:clamp(20px,2vw,26px);font-weight:700}
h4{font-family:"Syne",sans-serif;font-weight:700;font-size:1.05rem;margin:0 0 .4em}
p{margin:0 0 1.1em}
a{color:currentColor;text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--cobalt)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0 0 1.1em;padding-left:1.2em}
li{margin:.3em 0}
strong{font-weight:600}

/* ---------- Surfaces (paired bg+text — never set independently) ---------- */
.surface-ink   {background:var(--ink);   color:var(--ivory)}
.surface-ivory {background:var(--ivory); color:var(--ink)}
.surface-slate {background:var(--slate); color:var(--ivory)}
.surface-cobalt{background:var(--cobalt);color:var(--ivory)}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:var(--pad-section) 0}
.section--tight{padding:72px 0}
.eyebrow{
  font-family:"Manrope",sans-serif;
  font-weight:600;
  font-size:12px;
  letter-spacing:.20em;
  text-transform:uppercase;
  color:var(--cobalt);
  margin:0 0 18px;
  display:inline-block;
}
.surface-ink .eyebrow,.surface-slate .eyebrow,.surface-cobalt .eyebrow{color:var(--cobalt-bright)}
.surface-cobalt .eyebrow{color:rgba(245,243,238,.85)}
.lead{font-size:clamp(19px,2.1vw,23px);line-height:1.55;max-width:60ch}
.muted{color:var(--warm-grey)}
.surface-ink .muted,.surface-slate .muted{color:rgba(245,243,238,.62)}

/* Hairline rule with nexus node */
.hairline{
  height:1px;width:100%;border:0;
  background:linear-gradient(90deg,transparent,var(--hairline) 12%,var(--hairline) 88%,transparent);
  margin:0;
}
.rule-node{
  position:relative;height:1px;
  background:linear-gradient(90deg,transparent,var(--hairline-soft),transparent);
  margin:56px 0;
}
.rule-node::before{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:7px;height:7px;border-radius:50%;background:var(--cobalt);
  box-shadow:0 0 0 4px rgba(49,94,255,.15);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  font-family:"Manrope",sans-serif;font-weight:600;font-size:15px;
  letter-spacing:.01em;padding:15px 28px;border-radius:999px;
  border:1px solid transparent;cursor:pointer;transition:filter .25s ease,box-shadow .25s ease,transform .25s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--cobalt);color:var(--ivory);border-color:var(--cobalt)}
.btn-primary:hover{filter:brightness(1.12);box-shadow:0 12px 30px -12px rgba(49,94,255,.7);transform:translateY(-1px)}
.btn-outline{background:transparent;color:currentColor;border:1px solid currentColor}
.btn-outline:hover{filter:brightness(1.3);box-shadow:0 10px 26px -16px currentColor}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px}

/* ---------- Header / nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:transparent;color:var(--ivory);
  transition:background .35s ease,color .35s ease,box-shadow .35s ease,padding .35s ease;
  padding:6px 0;
}
.site-header.scrolled{
  background:var(--ivory);color:var(--ink);
  box-shadow:0 1px 0 var(--hairline-soft),0 10px 30px -22px rgba(12,17,22,.5);
}
/* Inner pages get a solid header immediately for readability */
.site-header.static-header{
  position:sticky;background:var(--ivory);color:var(--ink);
  box-shadow:0 1px 0 var(--hairline-soft);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px}
.brand{display:flex;align-items:center;gap:11px;font-family:"Syne",sans-serif;font-weight:800;font-size:20px;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.nav-links a{font-size:15px;font-weight:600;letter-spacing:.01em}
.nav-cta{padding:11px 20px;font-size:14px}
.nav-toggle{display:none;background:none;border:0;color:currentColor;cursor:pointer;padding:8px}
.nav-toggle svg{width:26px;height:26px}

/* ---------- Hero "Nexus Grid" ---------- */
.hero{
  position:relative;min-height:96vh;display:flex;flex-direction:column;
  justify-content:space-between;overflow:hidden;
}
.hero__bg{position:absolute;inset:0;z-index:0}
.hero__bg img{width:100%;height:100%;object-fit:cover}
.hero__overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(12,17,22,.9) 0%,rgba(12,17,22,.72) 42%,rgba(12,17,22,.35) 100%),
             linear-gradient(0deg,rgba(12,17,22,.85) 0%,rgba(12,17,22,.15) 55%);
}
.hero__nexus{position:absolute;top:0;right:0;z-index:2;width:min(46vw,520px);opacity:.5;pointer-events:none}
.hero__inner{position:relative;z-index:3;display:flex;flex-direction:column;justify-content:space-between;flex:1;padding-top:96px;padding-bottom:26px}
.hero__top{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-bottom:16px}
.hero__eyebrow-l{font-family:"Manrope";font-weight:600;font-size:12px;letter-spacing:.20em;text-transform:uppercase;color:rgba(245,243,238,.8)}
.hero__eyebrow-r{font-family:"Manrope";font-weight:600;font-size:12px;letter-spacing:.20em;text-transform:uppercase;color:var(--cobalt-bright)}
.hero__content{max-width:920px;padding:40px 0 10px;min-width:0}
.hero__kicker{color:var(--cobalt-bright);font-weight:600;font-size:12px;letter-spacing:.22em;text-transform:uppercase;display:block;margin-bottom:22px}
.hero h1{
  font-size:clamp(36px,5vw,72px);
  color:var(--ivory);
  margin-bottom:26px;
  max-width:100%;
  line-height:1.1;
  overflow-wrap:break-word;
  word-wrap:break-word;
}
.u-underline{
  position:relative;
  display:inline;
  box-decoration-break:clone;
  -webkit-box-decoration-break:clone;
}
.u-underline::after{
  content:"";position:absolute;left:0;bottom:.04em;height:2px;width:100%;
  background:var(--cobalt);transform:scaleX(1);transform-origin:left;
  transition:transform 1.1s cubic-bezier(.16,.8,.3,1) .3s;
}
.js .u-underline::after{transform:scaleX(0)}
.hero.is-drawn .u-underline::after{transform:scaleX(1)}
.hero__sub{color:rgba(245,243,238,.85);max-width:540px;font-size:clamp(16px,1.5vw,19px);margin-bottom:30px}
.hero__trust{border-top:1px solid var(--hairline);padding-top:16px;font-size:12px;letter-spacing:.05em;color:rgba(245,243,238,.7)}

/* ---------- Generic grids ---------- */
.grid{display:grid;gap:28px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split--rev .split__media{order:-1}

/* Cards */
.card{
  border:1px solid var(--hairline-soft);border-radius:var(--radius);
  padding:32px;background:rgba(255,255,255,.5);position:relative;overflow:hidden;
}
.surface-ink .card,.surface-slate .card{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.12)}
.card__num{
  position:absolute;top:-10px;right:14px;font-family:"Syne";font-weight:800;
  font-size:96px;line-height:1;color:var(--cobalt);opacity:.08;letter-spacing:-.03em;pointer-events:none;
}
.card h3{margin-bottom:.35em}
.card p:last-child{margin-bottom:0}

/* Pillars */
.pillar{padding:28px;border-top:2px solid var(--cobalt)}
.pillar h3{font-size:20px}
.pillar .idx{font-family:"Syne";font-weight:800;color:var(--cobalt);font-size:14px;letter-spacing:.1em;display:block;margin-bottom:10px}

/* Stat row */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.stat{padding:20px 0}
.stat .num{font-family:"Syne";font-weight:800;font-size:clamp(40px,5vw,60px);color:var(--cobalt);line-height:1}
.surface-ink .stat .num,.surface-slate .stat .num{color:var(--cobalt-bright)}
.stat .label{font-size:14px;color:var(--warm-grey);margin-top:6px}
.surface-ink .stat .label{color:rgba(245,243,238,.6)}

/* Media blocks */
.media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft)}
.media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.media--tall img{aspect-ratio:3/4}
.media--wide img{aspect-ratio:16/10}
.figure-cap{font-size:13px;color:var(--warm-grey);margin-top:10px}

/* Service list rows */
.srv{padding:34px 0;border-top:1px solid var(--hairline-soft);display:grid;grid-template-columns:64px 1fr auto;gap:26px;align-items:start}
.srv .srv-idx{font-family:"Syne";font-weight:800;font-size:22px;color:var(--cobalt)}
.srv .srv-price{font-family:"Syne";font-weight:700;font-size:15px;color:var(--warm-grey);white-space:nowrap}
.surface-ink .srv .srv-price{color:rgba(245,243,238,.7)}

/* Work engagements */
.work-item{border:1px solid var(--hairline-soft);border-radius:var(--radius);overflow:hidden;background:rgba(255,255,255,.5)}
.work-item .media{border-radius:0;box-shadow:none}
.work-item .work-body{padding:28px}
.tag{display:inline-block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--cobalt);border:1px solid var(--hairline);border-radius:999px;padding:5px 12px;margin-bottom:14px;font-weight:600}

/* FAQ */
.faq-item{border-top:1px solid var(--hairline-soft);padding:26px 0}
.faq-item h3{font-size:19px;margin-bottom:.5em}
.faq-item p:last-child{margin-bottom:0}

/* Disclaimer note */
.disclaimer{
  border-left:2px solid var(--cobalt);padding:18px 22px;background:rgba(49,94,255,.05);
  border-radius:0 var(--radius) var(--radius) 0;font-size:14.5px;color:var(--slate);margin:26px 0;
}
.surface-ink .disclaimer,.surface-slate .disclaimer{background:rgba(49,94,255,.14);color:rgba(245,243,238,.8)}

/* Forms */
.form{max-width:640px}
.field{margin-bottom:20px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:7px}
.field input,.field textarea,.field select{
  width:100%;padding:13px 15px;font:inherit;font-size:16px;color:var(--ink);
  background:#fff;border:1px solid #cfd2d6;border-radius:10px;transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--cobalt);box-shadow:0 0 0 3px rgba(49,94,255,.16)}
.field textarea{min-height:150px;resize:vertical}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:14px;line-height:1.5}
.consent input{width:auto;margin-top:3px;flex:0 0 auto}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-note{font-size:13px;color:var(--warm-grey);margin-top:14px}

/* Contact detail block */
.contact-block{font-size:16px;line-height:1.9}
.contact-block .lbl{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--cobalt);font-weight:600;display:block;margin-top:18px}

/* ---------- Footer ---------- */
.site-footer{padding:72px 0 40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:38px}
.footer-grid h4{color:var(--cobalt-bright);font-size:12px;letter-spacing:.16em;text-transform:uppercase}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin:.45em 0}
.footer-links a{font-size:15px;color:rgba(245,243,238,.8)}
.footer-legal{font-size:13.5px;line-height:1.75;color:rgba(245,243,238,.62)}
.footer-legal strong{color:rgba(245,243,238,.9)}
.footer-disclaimer{font-size:12.5px;line-height:1.7;color:rgba(245,243,238,.5);border-top:1px solid rgba(255,255,255,.12);padding-top:22px;margin-top:8px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(245,243,238,.55);border-top:1px solid rgba(255,255,255,.12);padding-top:22px;margin-top:26px}

/* ---------- Cookie banner ---------- */
.cookie{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:80;max-width:560px;margin:0 auto;
  background:var(--slate);color:var(--ivory);border:1px solid rgba(255,255,255,.14);
  border-radius:16px;padding:22px 24px;box-shadow:0 26px 60px -20px rgba(0,0,0,.6);
}
.cookie[hidden]{display:none}
.cookie h4{color:var(--cobalt-bright);margin-bottom:.5em}
.cookie p{font-size:13.5px;color:rgba(245,243,238,.78);margin-bottom:14px}
.cookie .btn-row{margin-top:0}
.cookie .btn{padding:11px 18px;font-size:13.5px}

/* ---------- Reveal animation ----------
   Base .reveal is fully visible (JS-off safe). Only when <html> has .js do we
   hide-then-reveal on scroll. body.no-js has no reveal rule, so it can never
   re-show elements prematurely once JS is active. */
.reveal{opacity:1;transform:none}
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .8s ease,transform .8s ease}
.js .reveal.is-visible{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .js .reveal{opacity:1;transform:none}
  .u-underline::after{transition:none;transform:scaleX(1)}
}

/* ---------- Content prose helpers ---------- */
.page-head{padding:150px 0 60px}
.page-head h1{max-width:18ch}
.prose{max-width:74ch}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose ul{padding-left:1.25em}
.two-col{columns:2;column-gap:48px}
.mt-0{margin-top:0}
.center{text-align:center}
.maxw-narrow{max-width:760px;margin-left:auto;margin-right:auto}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  :root{--pad-section:80px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:34px}
  .split--rev .split__media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .two-col{columns:1}
}
@media (max-width:720px){
  body{font-size:16px}
  .nav-links{
    position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:flex-start;gap:0;
    background:var(--ivory);color:var(--ink);padding:14px 24px 24px;
    box-shadow:0 20px 40px -20px rgba(12,17,22,.5);transform:translateY(-140%);
    transition:transform .3s ease;
  }
  .site-header .nav-links a{color:var(--ink)}
  .nav-links li{width:100%;border-top:1px solid var(--hairline-soft)}
  .nav-links li:first-child{border-top:0}
  .nav-links a{display:block;padding:14px 0;width:100%}
  .nav-links.open{transform:translateY(0)}
  .nav-toggle{display:inline-flex}
  .grid-2,.grid-3,.grid-4,.stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .srv{grid-template-columns:1fr;gap:12px}
  .srv .srv-price{margin-top:4px}
  .hero__content{padding-top:20px}
  .hero h1{font-size:clamp(32px,8.5vw,46px);max-width:100%;line-height:1.12}
  .hero__top{flex-wrap:wrap;gap:10px 16px}
  .hero__eyebrow-l,.hero__eyebrow-r{font-size:11px;letter-spacing:.16em}
  .page-head{padding:120px 0 40px}
}