/* ============================================================
   AvQuint — brand system v2
   "Engineered light": ink-navy + electric blue, Swiss-minimal.
   Display: Space Grotesk · Body: Inter
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --blue:#2E5BFF;
  --blue-hover:#1F46E0;
  --cyan:#22D3EE;
  --ink:#070C1C;
  --ink-2:#0B1228;
  --text:#111731;
  --muted:#5D6578;
  --bg:#FAFBFD;
  --surface:#FFFFFF;
  --line:#E8ECF4;
  --line-dark:rgba(255,255,255,.09);
  --radius:14px;
  --font-display:"Space Grotesk","Inter",sans-serif;
  --font-body:"Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --grad:linear-gradient(90deg,var(--blue),var(--cyan));
  --shadow-card:0 14px 40px -18px rgba(17,23,49,.16);
  --shadow-blue:0 10px 30px -10px rgba(46,91,255,.5);
  font-size:16px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:var(--font-body);color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
::selection{background:var(--blue);color:#fff;}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px;}
img{max-width:100%;}

.container{max-width:1160px;margin:0 auto;padding:0 24px;}
a{color:inherit;text-decoration:none;}

h1,h2,h3,h4{font-family:var(--font-display);line-height:1.12;margin:0 0 14px;font-weight:700;letter-spacing:-.025em;color:var(--text);}
h1{font-size:clamp(2.5rem,5vw,3.6rem);}
h2{font-size:clamp(1.7rem,3vw,2.35rem);}
h3{font-size:1.18rem;letter-spacing:-.015em;}
h4{font-size:1.02rem;}
p{margin:0 0 12px;color:var(--muted);}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}

/* Eyebrow — node + trace motif (from the logo mark) */
.eyebrow{display:inline-flex;align-items:center;gap:10px;text-transform:uppercase;letter-spacing:.2em;font-size:.72rem;font-weight:700;color:var(--blue);margin:0 0 18px;}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 3px rgba(46,91,255,.18),0 0 12px rgba(46,91,255,.8);flex:none;}

/* ---------------- Header ---------------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(250,251,253,.78);backdrop-filter:blur(16px) saturate(170%);-webkit-backdrop-filter:blur(16px) saturate(170%);border-bottom:1px solid transparent;transition:border-color .25s ease,background .25s ease;}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(250,251,253,.92);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.14rem;color:var(--text);letter-spacing:-.02em;}
.brand-logo{height:30px;width:30px;}
.main-nav{display:flex;gap:4px;align-items:center;}
.main-nav a{font-weight:500;font-size:.9rem;color:var(--muted);padding:8px 13px;border-radius:9px;transition:color .2s ease,background .2s ease;}
.main-nav a:hover{color:var(--text);background:rgba(17,23,49,.05);}
.main-nav a.nav-cta{margin-left:10px;background:var(--blue);color:#fff;font-weight:600;padding:9px 18px;border-radius:10px;box-shadow:var(--shadow-blue);}
.main-nav a.nav-cta:hover{background:var(--blue-hover);transform:translateY(-1px);}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:42px;height:42px;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------------- Dark canvases (hero / page-hero / cta) ---------------- */
.hero,.page-hero,.cta-section{position:relative;isolation:isolate;background:var(--ink);color:#fff;overflow:hidden;}
.hero::after,.page-hero::after,.cta-section::after{ /* blueprint grid */
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 64px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 64px);
  mask-image:radial-gradient(80% 90% at 50% 10%,#000 30%,transparent 100%);
  -webkit-mask-image:radial-gradient(80% 90% at 50% 10%,#000 30%,transparent 100%);
}
.hero h1,.page-hero h1,.cta-section h2{color:#fff;}
.hero .eyebrow,.page-hero .eyebrow,.cta-section .eyebrow{color:#9DB4FF;}
.hero .eyebrow::before,.page-hero .eyebrow::before,.cta-section .eyebrow::before{background:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.18),0 0 14px rgba(34,211,238,.9);}

/* Home hero */
.hero{padding:120px 0 0;}
.hero-bg-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-3;opacity:.5;}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;background:
    radial-gradient(55% 80% at 12% 10%, rgba(46,91,255,.4), transparent 62%),
    radial-gradient(45% 60% at 95% 90%, rgba(34,211,238,.16), transparent 60%),
    linear-gradient(180deg, rgba(7,12,28,.72) 0%, rgba(7,12,28,.55) 45%, var(--ink) 96%);}
.hero-grid{display:grid;grid-template-columns:1fr;gap:56px;}
.hero h1{font-size:clamp(2.7rem,5.6vw,4.1rem);max-width:15ch;margin-bottom:20px;}
.hero .lead{color:#B8C4E4;font-size:1.16rem;max-width:52ch;font-weight:400;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px;}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px;}
.hero-tags a{border:1px solid var(--line-dark);color:#C4CEE8;padding:8px 16px;border-radius:9px;font-weight:500;font-size:.86rem;background:rgba(255,255,255,.03);backdrop-filter:blur(6px);transition:all .25s ease;}
.hero-tags a:hover{border-color:rgba(46,91,255,.7);color:#fff;background:rgba(46,91,255,.16);transform:translateY(-2px);}
/* stat rail */
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line-dark);margin-top:72px;padding:34px 0 44px;}
.hero-stats .stat{padding:0 28px;border-left:1px solid var(--line-dark);color:#8E9BBD;font-size:.85rem;font-weight:500;}
.hero-stats .stat:first-child{border-left:0;padding-left:0;}
.hero-stats .stat span{display:block;font-family:var(--font-display);font-size:clamp(1.7rem,2.6vw,2.3rem);font-weight:700;letter-spacing:-.02em;color:#fff;margin-bottom:2px;}
.hero-stats .stat span::after{content:"";display:block;width:26px;height:2px;background:var(--grad);margin:10px 0 8px;border-radius:2px;}

/* Inner page hero */
.page-hero{padding:104px 0 84px;}
.page-hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-3;opacity:.42;}
.page-hero::before{content:"";position:absolute;inset:0;z-index:-2;background:
    radial-gradient(50% 90% at 8% 0%, rgba(46,91,255,.38), transparent 60%),
    linear-gradient(90deg, rgba(7,12,28,.92) 0%, rgba(7,12,28,.62) 55%, rgba(7,12,28,.3) 100%),
    linear-gradient(180deg, rgba(7,12,28,.3), var(--ink) 130%);}
.page-hero h1{max-width:18ch;}
.page-hero .lead{color:#B8C4E4;max-width:62ch;font-size:1.08rem;}

/* ---------------- Sections ---------------- */
.section{padding:96px 0;}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-sub{max-width:64ch;color:var(--muted);font-size:1.05rem;margin-bottom:8px;}
.sub-heading{margin-top:64px;}

/* ---------------- Cards ---------------- */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:20px;margin-top:44px;}
.card-grid.two{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));}
.card-grid.three{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));}
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .3s cubic-bezier(.2,.8,.2,1),box-shadow .3s ease,border-color .3s ease;}
.card::after{content:"";position:absolute;top:-1px;left:14px;right:14px;height:2px;background:var(--grad);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .35s ease;}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-card);border-color:#D6DEF0;}
.card:hover::after{transform:scaleX(1);}
.section.alt .card{background:var(--bg);}
.card h3{margin-bottom:8px;}
.card ul{margin:0 0 14px;padding-left:0;list-style:none;color:var(--muted);font-size:.92rem;}
.card ul li{padding:5px 0 5px 18px;position:relative;}
.card ul li::before{content:"";position:absolute;left:0;top:.95em;width:8px;height:2px;background:var(--blue);border-radius:2px;}
.card ul:empty{display:none;}
.card-grid.no-list ul{display:none;}
.card-link{font-weight:600;font-size:.92rem;color:var(--blue);display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease;}
.card-link:hover{gap:10px;}
.card-media{margin:-26px -26px 22px;aspect-ratio:16/10;background:var(--ink-2);overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;border-bottom:1px solid var(--line);}
.card-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s cubic-bezier(.2,.8,.2,1),opacity .3s ease;}
.card:hover .card-media img{transform:scale(1.05);}

/* ---------------- Tags (pills) ---------------- */
.pill-grid{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.pill{background:var(--surface);border:1px solid var(--line);padding:9px 18px;border-radius:9px;font-weight:500;font-size:.88rem;color:var(--text);transition:all .22s ease;}
.pill:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px);box-shadow:0 8px 20px -10px rgba(46,91,255,.4);}

/* ---------------- Process steps ---------------- */
.step-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:28px;margin-top:44px;}
.step{border-top:2px solid var(--line);padding:22px 4px 0;transition:border-color .3s ease;}
.step:hover{border-top-color:var(--blue);}
.step-num{font-family:var(--font-display);font-size:.95rem;font-weight:700;letter-spacing:.08em;margin-bottom:12px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.step h4{margin-bottom:6px;}
.step p{font-size:.94rem;}

/* ---------------- Stats (light sections) ---------------- */
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:28px 20px;margin-top:44px;}
.stat-row .stat{border-left:2px solid var(--line);padding:4px 0 4px 20px;transition:border-color .3s ease;}
.stat-row .stat:hover{border-left-color:var(--blue);}
.stat-row .stat span{display:block;font-family:var(--font-display);font-size:2rem;font-weight:700;letter-spacing:-.02em;color:var(--blue);line-height:1.1;}
.stat-row .stat small{display:block;color:var(--muted);font-size:.82rem;margin-top:6px;line-height:1.5;}

/* ---------------- Layer list ---------------- */
.layer-list{list-style:none;padding:0;margin:40px 0 0;display:grid;gap:10px;counter-reset:layer;}
.layer-list li{counter-increment:layer;display:flex;align-items:baseline;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px 22px;color:var(--muted);transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;}
.layer-list li::before{content:"0" counter(layer);font-family:var(--font-display);font-weight:700;font-size:.9rem;color:var(--blue);flex:none;}
.layer-list li strong{color:var(--text);}
.layer-list li:hover{border-color:rgba(46,91,255,.5);transform:translateX(6px);box-shadow:var(--shadow-card);}

/* ---------------- Expertise bars ---------------- */
.bar-list{margin-top:44px;display:grid;gap:26px;}
.bar-label{display:flex;justify-content:space-between;font-weight:600;font-size:.95rem;margin-bottom:10px;color:var(--text);}
.bar-label span{font-family:var(--font-display);color:var(--blue);}
.bar{background:#EDF1F8;border-radius:999px;height:6px;overflow:hidden;}
.bar div{background:var(--grad);height:100%;border-radius:999px;box-shadow:0 0 10px rgba(46,91,255,.55);transform-origin:left;}
.bar-item p{margin-top:8px;font-size:.9rem;}

/* ---------------- CTA ---------------- */
.cta-section{padding:104px 0;}
.cta-section::before{content:"";position:absolute;inset:0;z-index:-2;background:
    radial-gradient(60% 90% at 85% 10%, rgba(46,91,255,.34), transparent 60%),
    radial-gradient(40% 60% at 8% 100%, rgba(34,211,238,.14), transparent 60%);}
.cta-box .section-sub{color:#B8C4E4;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px;}
.check-list{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:10px;margin:30px 0;}
.check-list li{border:1px solid var(--line-dark);border-radius:10px;padding:12px 16px;color:#C4CEE8;font-size:.93rem;background:rgba(255,255,255,.03);position:relative;padding-left:38px;}
.check-list li::before{content:"";position:absolute;left:16px;top:50%;width:10px;height:5px;border-left:2px solid var(--cyan);border-bottom:2px solid var(--cyan);transform:translateY(-70%) rotate(-45deg);}
.offer-box{border:1px solid rgba(46,91,255,.4);background:linear-gradient(135deg,rgba(46,91,255,.14),rgba(34,211,238,.06));border-radius:var(--radius);padding:28px;margin-top:34px;max-width:640px;}
.offer-box strong{font-family:var(--font-display);font-size:1.05rem;color:#fff;letter-spacing:-.01em;}
.offer-box p{color:#B8C4E4;margin:8px 0 0;}
.offer-box .btn{margin-top:18px;}

/* ---------------- Buttons ---------------- */
.btn{display:inline-block;padding:13px 26px;border-radius:10px;font-weight:600;font-size:.95rem;letter-spacing:-.01em;transition:all .22s ease;}
.btn-primary{background:var(--blue);color:#fff;box-shadow:var(--shadow-blue);}
.btn-primary:hover{background:var(--blue-hover);transform:translateY(-2px);box-shadow:0 14px 34px -10px rgba(46,91,255,.65);}
.btn-outline{border:1px solid rgba(255,255,255,.32);color:#fff;background:rgba(255,255,255,.02);}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px);}

/* ---------------- Prose / callout ---------------- */
.prose h3,.prose h4{margin-top:30px;}
.prose ul{padding-left:20px;color:var(--muted);}
.callout{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:12px;padding:24px;margin-top:28px;}

/* ---------------- Footer ---------------- */
.site-footer{position:relative;background:var(--ink);color:#98A3C0;padding:72px 0 28px;margin-top:0;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.4fr 1.5fr;gap:36px;}
.footer-col h4{color:#fff;font-size:.78rem;text-transform:uppercase;letter-spacing:.16em;margin-bottom:18px;}
.footer-col a{display:block;color:#98A3C0;margin-bottom:10px;font-size:.93rem;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;}
.footer-col p{color:#98A3C0;font-size:.88rem;}
.footer-brand p{color:#6E7994;margin:16px 0;max-width:34ch;}
.footer-brand .brand{color:#fff;}
.social{display:inline-block;border:1px solid var(--line-dark);padding:7px 16px;border-radius:9px;font-size:.85rem;transition:all .2s ease;}
.social:hover{border-color:var(--blue);color:#fff;background:rgba(46,91,255,.14);}
.footer-bottom{border-top:1px solid var(--line-dark);margin-top:52px;padding-top:24px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;color:#5E6884;font-size:.83rem;}
.legal-links{display:flex;gap:18px;}
.legal-links a:hover{color:#fff;}
.certs{letter-spacing:.04em;}

/* ---------------- Back to top ---------------- */
.back-to-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;display:flex;align-items:center;justify-content:center;background:var(--ink);border:1px solid rgba(255,255,255,.16);color:#fff;border-radius:12px;font-size:0;box-shadow:0 12px 30px -8px rgba(7,12,28,.5);transition:transform .2s ease,background .2s ease,border-color .2s ease;z-index:55;}
.back-to-top::before{content:"";width:9px;height:9px;border-top:2px solid currentColor;border-left:2px solid currentColor;transform:rotate(45deg) translate(1px,1px);}
.back-to-top:hover{transform:translateY(-3px);background:var(--blue);border-color:var(--blue);}

/* ---------------- Reveal ---------------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s cubic-bezier(.2,.8,.2,1);}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------------- Responsive ---------------- */
@media (max-width:1000px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:26px 0;}
  .hero-stats .stat:nth-child(odd){border-left:0;padding-left:0;}
}
@media (max-width:820px){
  .section{padding:72px 0;}
  .hero{padding-top:96px;}
  .nav-toggle{display:flex;}
  .main-nav{position:absolute;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;background:rgba(250,251,253,.98);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);padding:14px 20px 20px;display:none;}
  .main-nav.open{display:flex;}
  .main-nav a{padding:12px 14px;font-size:1rem;}
  .main-nav a.nav-cta{margin:10px 0 0;text-align:center;}
  .page-hero{padding:80px 0 64px;}
  .page-hero::before{background:linear-gradient(180deg,rgba(7,12,28,.86),rgba(7,12,28,.72)),linear-gradient(180deg,rgba(7,12,28,.2),var(--ink) 130%);}
}
@media (max-width:560px){
  .hero-stats{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;text-align:center;}
}