/* ============================================================
   CyberLiver — unified design system (2026 refresh)
   Identity: navy #0C3C6B / teal #159FAA, liver-network motif.
   Loaded by every page. Header/footer are baked into each page;
   this file gives them one shared look.
   ============================================================ */
:root{
  --navy:#0C3C6B; --navy-d:#072A4E; --navy-dd:#04203C;
  --cyan:#159FAA; --cyan-l:#42B1BA; --cyan-d:#0E7A83;
  --cyan-50:#E4F4F6; --cyan-100:#C9E9EC;
  --ink:#0C2233; --ink-2:#3E566B; --ink-3:#7089A0;
  --paper:#FFFFFF; --paper-2:#F5F8FB; --paper-3:#ECF2F8;
  --line:rgba(12,34,51,.10); --line-2:rgba(12,34,51,.06);
  --amber:#C6841A;
  --shadow-sm:0 1px 3px rgba(12,34,51,.06),0 1px 2px rgba(12,34,51,.04);
  --shadow:0 4px 20px rgba(12,34,51,.08);
  --shadow-lg:0 18px 50px rgba(12,34,51,.14);
  --r:14px; --r-lg:22px; --r-pill:100px;
  --max:1200px; --gutter:clamp(20px,4vw,40px);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --display:'Fraunces',Georgia,'Times New Roman',serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan-d);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--cyan-d)}
h1,h2,h3{font-family:var(--display);font-weight:300;letter-spacing:-.02em;line-height:1.1;color:var(--ink)}
h2{font-size:clamp(1.9rem,3.6vw,2.9rem);margin-bottom:16px}
h3{font-size:1.3rem;font-weight:400}
p{color:var(--ink-2)}
.lede{font-size:clamp(1.05rem,1.7vw,1.28rem);color:var(--ink-2);line-height:1.6}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:15px;padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:var(--cyan);color:#fff;box-shadow:0 6px 18px rgba(21,159,170,.28)}
.btn-primary:hover{background:var(--cyan-d);color:#fff}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-d);color:#fff}

/* ---------- HEADER ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,42,78,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;height:74px}
.site-header .logo img{height:38px;width:auto}
.nav{display:flex;align-items:center;gap:6px}
.nav a{color:rgba(255,255,255,.86);font-size:15px;font-weight:500;padding:9px 15px;border-radius:10px;transition:background .2s,color .2s}
.nav a:hover,.nav a.active{color:#fff;background:rgba(255,255,255,.10);text-decoration:none}
.nav .has-sub{position:relative}
.nav .sub{position:absolute;top:calc(100% + 8px);left:0;background:#fff;border-radius:var(--r);box-shadow:var(--shadow-lg);padding:8px;min-width:230px;opacity:0;visibility:hidden;transform:translateY(6px);transition:.2s;border:1px solid var(--line)}
.nav .has-sub:hover .sub{opacity:1;visibility:visible;transform:none}
.nav .sub a{display:block;color:var(--ink);padding:10px 14px;border-radius:9px;font-weight:500}
.nav .sub a:hover{background:var(--cyan-50);color:var(--navy)}
.header-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.3s;border-radius:2px}
@media(max-width:980px){
  .nav-toggle{display:block}
  .nav{position:fixed;inset:74px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:var(--navy-d);padding:12px var(--gutter) 24px;max-height:0;overflow:hidden;transition:max-height .35s ease;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav.open{max-height:80vh;overflow:auto}
  .nav a{padding:13px 8px;border-radius:8px}
  .nav .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:rgba(255,255,255,.04);border:0;padding:4px 4px 4px 16px;margin:4px 0}
  .nav .sub a{color:rgba(255,255,255,.8)}
  .nav .sub a:hover{background:rgba(255,255,255,.08);color:#fff}
  .header-cta .btn-primary{display:none}
}

/* ---------- PAGE HERO (inner pages) ---------- */
.page-hero{position:relative;background:linear-gradient(135deg,var(--navy-dd),var(--navy) 60%,var(--navy-d));color:#fff;padding:clamp(60px,10vw,120px) 0 clamp(50px,8vw,90px);overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background:url(../images/dotted-texture.png) right center/contain no-repeat;opacity:.10;pointer-events:none}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{color:#fff;font-size:clamp(2.2rem,5vw,3.6rem);margin-bottom:14px}
.page-hero .lede{color:rgba(255,255,255,.82);max-width:60ch}
.crumb{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:22px}
.crumb a{color:rgba(255,255,255,.75)}

/* ---------- SECTIONS ---------- */
.section{padding:clamp(56px,8vw,104px) 0}
.section.tight{padding:clamp(40px,5vw,64px) 0}
.section.alt{background:var(--paper-2)}
.section.navy{background:var(--navy);color:#fff}
.section.navy h2,.section.navy h3{color:#fff}
.section.navy p{color:rgba(255,255,255,.76)}
.section-head{max-width:64ch;margin-bottom:clamp(32px,5vw,56px)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* cards */
.grid{display:grid;gap:22px}
.g-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.g-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.g-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;box-shadow:var(--shadow-sm);transition:transform .35s,box-shadow .35s,border-color .35s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--cyan-100)}
.card .ic{width:52px;height:52px;border-radius:13px;background:var(--cyan-50);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.card .ic img{width:26px;height:26px}
.card h3{margin-bottom:10px;font-size:1.2rem}
.card p{font-size:14.5px}

.prose{max-width:78ch}
.prose h2{margin-top:8px}
.prose h3,.prose h4{font-family:var(--display);font-weight:400;color:var(--ink);margin:30px 0 10px}
.prose p{margin-bottom:16px}
.prose ul{margin:0 0 16px 20px}
.prose li{margin-bottom:8px;color:var(--ink-2)}

/* reveal */
.reveal{opacity:1;transform:none;transition:opacity .7s ease,transform .7s ease}
.js .reveal{opacity:0;transform:translateY(24px)}
.js .reveal.in{opacity:1;transform:none}

/* ---------- FOOTER ---------- */
.site-footer{background:var(--navy-dd);color:rgba(255,255,255,.66);padding:clamp(48px,7vw,80px) 0 0}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.site-footer .brand img{height:40px;margin-bottom:14px}
.site-footer h5{color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:16px}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:10px}
.site-footer a{color:rgba(255,255,255,.66);font-size:14.5px}
.site-footer a:hover{color:var(--cyan-l);text-decoration:none}
.site-footer .addr{font-size:14px;line-height:1.7;color:rgba(255,255,255,.6)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);margin-top:48px;padding:22px 0;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.footer-bottom p{color:rgba(255,255,255,.5);font-size:13px}
.social{display:flex;gap:10px}
.social a{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);font-size:14px}
.social a:hover{background:var(--cyan);border-color:var(--cyan);color:#fff;text-decoration:none}
@media(max-width:860px){.site-footer .cols{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.site-footer .cols{grid-template-columns:1fr}}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.js .reveal{opacity:1;transform:none}}
:focus-visible{outline:2px solid var(--cyan-l);outline-offset:2px}

/* ============================================================
   ANIMATION LAYER (adapted from net-zero page)
   ============================================================ */
.aurora-field{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.aurora{position:absolute;border-radius:50%;filter:blur(70px);opacity:.30;will-change:transform}
.aurora.a1{width:600px;height:600px;background:var(--cyan);top:-180px;right:-100px;animation:floatA 26s ease-in-out infinite}
.aurora.a2{width:500px;height:500px;background:#2E6FB0;bottom:-160px;left:-90px;animation:floatB 32s ease-in-out infinite}
.aurora.a3{width:380px;height:380px;background:var(--cyan-l);top:36%;left:46%;opacity:.18;animation:floatC 24s ease-in-out infinite}
@keyframes floatA{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-60px,50px) scale(1.12)}}
@keyframes floatB{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(70px,-44px) scale(1.08)}}
@keyframes floatC{0%,100%{transform:translate(0,0)}50%{transform:translate(-44px,-36px)}}
.contour{position:absolute;inset:0;width:100%;height:100%;opacity:.22;z-index:0;pointer-events:none}
.particles{position:absolute;inset:0;width:100%;height:100%;z-index:1;opacity:.5;pointer-events:none}

/* hero entrance animations */
.js .hero .eyebrow{opacity:0;animation:fadeUp .8s .2s forwards}
.js .hero h1{opacity:0;animation:fadeUp .9s .35s forwards}
.js .hero .lede{opacity:0;animation:fadeUp .9s .5s forwards}
.js .hero .cta-row{opacity:0;animation:fadeUp .9s .65s forwards}
.js .hero .stats{opacity:0;animation:fadeUp .9s .8s forwards}
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
.hero h1 em{position:relative}
.js .hero h1 em::after{content:'';position:absolute;left:0;bottom:.06em;height:.08em;width:100%;background:var(--cyan-l);transform:scaleX(0);transform-origin:left;animation:swipe 1.1s 1.3s cubic-bezier(.2,.8,.2,1) forwards}
@keyframes swipe{to{transform:scaleX(1)}}

/* count-up number */
.count{font-variant-numeric:tabular-nums}

/* card hover lift already present; add subtle icon pulse */
.card .ic{transition:transform .35s}
.card:hover .ic{transform:scale(1.08)}
@media(prefers-reduced-motion:reduce){
  .aurora,.js .hero .eyebrow,.js .hero h1,.js .hero .lede,.js .hero .cta-row,.js .hero .stats{animation:none!important;opacity:1!important}
  .js .hero h1 em::after{animation:none;transform:scaleX(1)}
}