/* ============================================================
   MERTIS — Design System
   Audit. Certify. License. Verify.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Inter+Tight:wght@500;600;700;800&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  /* Color system (per brand spec) */
  --navy:#0B1220;
  --blue:#155EEF;
  --electric:#3B82F6;
  --slate:#475467;
  --light-slate:#667085;
  --bg:#F8FAFC;
  --white:#FFFFFF;

  --verified:#12B76A;
  --warning:#F79009;
  --critical:#F04438;
  --pending:#667085;

  --navy-2:#111A2E;
  --line: rgba(11,18,32,0.10);
  --line-soft: rgba(11,18,32,0.06);
  --line-on-navy: rgba(255,255,255,0.12);

  --font-body:'Inter', system-ui, sans-serif;
  --font-display:'Inter Tight', system-ui, sans-serif;
  --font-mono:'IBM Plex Mono', ui-monospace, monospace;

  --container: 1240px;
  --radius: 3px;
  --ease: cubic-bezier(.16,.8,.24,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--navy);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{ font-family:var(--font-display); margin:0; letter-spacing:-0.02em; }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; cursor:pointer; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}

:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:3px;
}

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- Fine technical grid backdrop ---------- */
.grid-field{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line-on-navy) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-on-navy) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
  opacity:0;
  animation:gridIn 1.2s var(--ease) forwards;
  animation-delay:.05s;
}
.grid-field.light{
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
}
@keyframes gridIn{ to{ opacity:1; } }

/* ---------- Eyebrow / label ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--blue);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;
  background:var(--blue);
  display:inline-block;
}
.eyebrow.on-navy{ color:var(--electric); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:14px;
  padding:14px 24px;
  border-radius:var(--radius);
  border:1px solid transparent;
  transition:all .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--blue);
  color:#fff;
}
.btn-primary:hover{ background:#0E4FD1; transform:translateY(-1px); }
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--navy);
}
.btn-ghost:hover{ border-color:var(--blue); color:var(--blue); }
.btn-ghost.on-navy{
  border-color:var(--line-on-navy);
  color:#fff;
}
.btn-ghost.on-navy:hover{ border-color:var(--electric); color:var(--electric); }
.btn-sm{ padding:10px 16px; font-size:13px; }
.btn svg{ width:14px; height:14px; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed; top:0; left:0; right:0;
  z-index:100;
  padding:20px 0;
  transition:all .35s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
}
.site-header.is-solid{
  background:rgba(248,250,252,0.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  padding:14px 0;
}
.brand{ display:flex; flex-direction:column; gap:2px; }
.brand-mark{
  font-family:var(--font-display);
  font-weight:700;
  font-size:20px;
  letter-spacing:.02em;
  color:#fff;
}
.site-header.is-solid .brand-mark,
.site-header.on-light .brand-mark{ color:var(--navy); }
.brand-sub{
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.18em;
  color:var(--electric);
}
.nav-primary{
  display:flex; align-items:center; gap:36px;
}
.nav-primary a{
  font-size:14px; font-weight:500;
  color:rgba(255,255,255,0.78);
  transition:color .2s;
}
.site-header.is-solid .nav-primary a,
.site-header.on-light .nav-primary a{ color:var(--slate); }
.nav-primary a:hover{ color:#fff; }
.site-header.is-solid .nav-primary a:hover,
.site-header.on-light .nav-primary a:hover{ color:var(--blue); }
.nav-primary a.current{ color:var(--electric); }
.header-actions{ display:flex; align-items:center; gap:16px; }
.link-login{
  font-size:14px; font-weight:500; color:rgba(255,255,255,0.85);
}
.site-header.is-solid .link-login,
.site-header.on-light .link-login{ color:var(--navy); }
.nav-toggle{ display:none; background:none; border:0; padding:8px; }
.nav-toggle span{ display:block; width:22px; height:2px; background:currentColor; margin:5px 0; color:#fff; }
.site-header.is-solid .nav-toggle span,
.site-header.on-light .nav-toggle span{ color:var(--navy); }

@media (max-width: 1023px){
  .nav-primary{
    display:none;
    position:absolute; top:100%; left:0; right:0;
    background:var(--navy);
    flex-direction:column;
    gap:0;
    padding:8px 32px 20px;
    border-top:1px solid var(--line-on-navy);
  }
  .site-header.is-solid .nav-primary{ background:var(--bg); border-top:1px solid var(--line); }
  .nav-primary.nav-open{ display:flex; }
  .nav-primary a{ padding:12px 0; border-bottom:1px solid var(--line-on-navy); color:rgba(255,255,255,0.85); }
  .site-header.is-solid .nav-primary a{ color:var(--navy); border-bottom:1px solid var(--line); }
  .nav-toggle{ display:block; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;
  background:var(--navy);
  color:#fff;
  padding:180px 0 120px;
  overflow:hidden;
}
.hero .container{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
  position:relative; z-index:2;
}
.hero-eyebrow{ margin-bottom:22px; opacity:0; animation:riseIn .7s var(--ease) forwards; animation-delay:.5s; }
.hero h1{
  font-size:clamp(38px,4.6vw,62px);
  line-height:1.05;
  font-weight:700;
  margin-bottom:22px;
  opacity:0; animation:riseIn .7s var(--ease) forwards; animation-delay:.62s;
}
.hero-sub{
  font-size:17px;
  line-height:1.6;
  color:rgba(255,255,255,0.66);
  max-width:480px;
  margin-bottom:36px;
  opacity:0; animation:riseIn .7s var(--ease) forwards; animation-delay:.74s;
}
.hero-actions{
  display:flex; gap:14px; flex-wrap:wrap;
  opacity:0; animation:riseIn .7s var(--ease) forwards; animation-delay:.86s;
}
@keyframes riseIn{ from{ opacity:0; transform:translateY(14px);} to{ opacity:1; transform:translateY(0);} }

/* Certification object */
.cert-object-wrap{
  position:relative;
  height:440px;
  display:flex; align-items:center; justify-content:center;
  opacity:0; animation:objIn 1s var(--ease) forwards; animation-delay:.4s;
}
@keyframes objIn{ from{opacity:0; transform:scale(.92);} to{opacity:1; transform:scale(1);} }
.cert-object{
  width:320px; height:320px;
  position:relative;
  transform-style:preserve-3d;
  transition:transform .25s var(--ease);
}
.cert-face{
  position:absolute; inset:0;
  border:1px solid rgba(59,130,246,0.45);
  background:linear-gradient(145deg, rgba(21,94,239,0.14), rgba(11,18,32,0.02));
  backdrop-filter:blur(2px);
  display:flex; align-items:center; justify-content:center;
}
.cert-face.f-outer{ transform:rotate(45deg); }
.cert-face.f-inner{ inset:60px; transform:rotate(0deg); border-color:rgba(59,130,246,0.3); }
.cert-node{
  position:absolute;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.1em;
  color:var(--electric);
  background:var(--navy);
  padding:5px 10px;
  border:1px solid rgba(59,130,246,0.4);
  opacity:0;
  animation:nodeIn .5s var(--ease) forwards;
}
.cert-node.n1{ top:0; left:50%; transform:translate(-50%,-50%); animation-delay:1.0s; }
.cert-node.n2{ top:50%; right:-10px; transform:translate(0,-50%); animation-delay:1.12s; }
.cert-node.n3{ bottom:20px; right:10%; animation-delay:1.24s; }
.cert-node.n4{ bottom:20px; left:10%; animation-delay:1.36s; }
.cert-node.n5{ top:50%; left:-10px; transform:translate(0,-50%); animation-delay:1.48s; }
@keyframes nodeIn{ to{opacity:1;} }
.cert-core{
  font-family:var(--font-mono);
  font-size:11px;
  color:rgba(255,255,255,0.75);
  text-align:center;
  letter-spacing:.08em;
}
.cert-core b{ display:block; color:#fff; font-family:var(--font-display); font-size:15px; font-weight:600; letter-spacing:0; margin-bottom:4px; }

/* Trust bar */
.trust-bar{
  background:var(--navy-2);
  border-top:1px solid var(--line-on-navy);
  padding:22px 0;
  overflow:hidden;
}
.trust-track{
  display:flex; gap:48px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:rgba(255,255,255,0.5);
  white-space:nowrap;
  width:max-content;
  animation:scrollTrust 34s linear infinite;
}
@keyframes scrollTrust{ from{transform:translateX(0);} to{transform:translateX(-50%);} }

/* ============================================================
   SECTIONS
   ============================================================ */
.section{ padding:112px 0; position:relative; }
.section-tight{ padding:80px 0; }
.section-navy{ background:var(--navy); color:#fff; }
.section-head{
  max-width:640px;
  margin-bottom:64px;
}
.section-head h2{
  font-size:clamp(28px,3.4vw,42px);
  font-weight:700;
  margin-top:16px;
  line-height:1.12;
}
.section-head p{
  margin-top:16px;
  font-size:16px;
  line-height:1.65;
  color:var(--slate);
}
.section-navy .section-head p{ color:rgba(255,255,255,0.62); }

/* Lifecycle */
.lifecycle{
  display:grid;
  grid-template-columns:repeat(9,1fr);
  gap:1px;
  background:var(--line-on-navy);
  border:1px solid var(--line-on-navy);
}
.lifecycle-step{
  background:var(--navy);
  padding:26px 14px;
  text-align:center;
  transition:background .25s var(--ease);
  cursor:default;
}
.lifecycle-step:hover{ background:rgba(21,94,239,0.16); }
.lifecycle-step .num{
  font-family:var(--font-mono);
  font-size:10px;
  color:var(--electric);
  display:block;
  margin-bottom:10px;
}
.lifecycle-step .label{
  font-family:var(--font-display);
  font-weight:600;
  font-size:13px;
  color:#fff;
  letter-spacing:.01em;
}
@media (max-width:900px){
  .lifecycle{ grid-template-columns:repeat(3,1fr); }
}

/* Card grid */
.card-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.card{
  background:var(--white);
  padding:32px 28px;
  transition:background .2s var(--ease);
}
.card:hover{ background:#F1F5FE; }
.card .idx{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--light-slate);
  display:block; margin-bottom:18px;
}
.card h3{
  font-size:17px; font-weight:600; margin-bottom:10px;
}
.card p{ font-size:14px; line-height:1.6; color:var(--slate); }

/* Industries grid */
.industry-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.industry-tile{
  background:var(--white);
  aspect-ratio:1.15;
  padding:22px;
  display:flex; flex-direction:column; justify-content:space-between;
  transition:transform .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease);
  position:relative; z-index:1;
}
.industry-tile:hover{
  background:var(--navy);
  color:#fff;
  transform:translateY(-6px);
  box-shadow:0 24px 40px rgba(11,18,32,0.18);
  z-index:2;
}
.industry-tile .idx{ font-family:var(--font-mono); font-size:10px; color:var(--light-slate); }
.industry-tile:hover .idx{ color:var(--electric); }
.industry-tile .name{ font-family:var(--font-display); font-weight:600; font-size:16px; }
@media (max-width:900px){ .industry-grid{ grid-template-columns:repeat(2,1fr);} }

/* Evidence checklist */
.evidence-panel{
  background:var(--navy);
  border:1px solid var(--line-on-navy);
  padding:32px;
  color:#fff;
}
.evidence-panel .panel-title{
  font-family:var(--font-mono);
  font-size:11px; letter-spacing:.14em; color:var(--electric);
  margin-bottom:22px;
}
.evidence-row{
  display:flex; align-items:center; justify-content:space-between;
  padding:13px 0;
  border-top:1px solid var(--line-on-navy);
  font-size:14px;
}
.evidence-row:first-of-type{ border-top:none; }
.status-dot{
  width:9px;height:9px;border-radius:50%;
  display:inline-block;
}
.status-dot.ok{ background:var(--verified); }
.status-dot.warn{ background:var(--warning); }

/* Certificate card (3D-ish) */
.certificate-card{
  background:linear-gradient(160deg,var(--navy) 0%, var(--navy-2) 100%);
  border:1px solid rgba(59,130,246,0.35);
  padding:36px;
  color:#fff;
  max-width:420px;
  position:relative;
  box-shadow:0 40px 80px -20px rgba(11,18,32,0.5);
}
.certificate-card::before{
  content:"";
  position:absolute; inset:10px;
  border:1px solid rgba(59,130,246,0.18);
  pointer-events:none;
}
.cc-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:28px; }
.cc-badge{
  font-family:var(--font-mono); font-size:10px; letter-spacing:.14em;
  color:var(--electric); border:1px solid rgba(59,130,246,0.4); padding:5px 10px;
}
.cc-status{ font-family:var(--font-mono); font-size:10px; color:var(--verified); letter-spacing:.1em; }
.cc-product{ font-family:var(--font-display); font-size:22px; font-weight:600; margin-bottom:6px; }
.cc-org{ font-size:13px; color:rgba(255,255,255,0.55); margin-bottom:28px; }
.cc-id{ font-family:var(--font-mono); font-size:13px; color:var(--electric); letter-spacing:.04em; margin-bottom:22px; }
.cc-meta{ display:flex; justify-content:space-between; margin-bottom:28px; }
.cc-meta div span{ display:block; }
.cc-meta .cc-label{ font-family:var(--font-mono); font-size:9.5px; letter-spacing:.1em; color:rgba(255,255,255,0.45); margin-bottom:4px; }
.cc-meta .cc-value{ font-size:14px; font-weight:500; }
.cc-actions{ display:flex; gap:10px; }
.qr-mark{
  width:56px; height:56px;
  background:
   linear-gradient(90deg, #fff 2px, transparent 2px) 0 0/12px 12px,
   linear-gradient(#fff 2px, transparent 2px) 0 0/12px 12px;
  background-color:rgba(255,255,255,0.06);
  border:1px solid rgba(59,130,246,0.4);
}

/* Stat strip */
.stat-strip{
  display:grid; grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line); background:var(--line);
  gap:1px;
}
.stat{ background:#fff; padding:30px 26px; }
.stat .n{ font-family:var(--font-display); font-size:34px; font-weight:700; }
.stat .l{ font-size:13px; color:var(--slate); margin-top:6px; }
@media (max-width:800px){ .stat-strip{ grid-template-columns:repeat(2,1fr);} }

/* Readiness / compliance meters */
.meter-row{ display:flex; align-items:center; gap:16px; margin-bottom:16px; }
.meter-row .m-label{ width:150px; font-size:13px; color:rgba(255,255,255,0.7); flex-shrink:0; }
.meter-track{ flex:1; height:6px; background:rgba(255,255,255,0.1); position:relative; overflow:hidden; }
.meter-fill{ position:absolute; inset:0; width:0; background:var(--electric); transition:width 1.1s var(--ease); }
.meter-row .m-val{ width:42px; text-align:right; font-family:var(--font-mono); font-size:13px; color:#fff; flex-shrink:0; }

/* Two column split */
.split{
  display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center;
}
@media (max-width:900px){ .split{ grid-template-columns:1fr; gap:40px; } }

/* Timeline */
.timeline{ display:flex; gap:0; flex-wrap:wrap; }
.timeline-step{
  flex:1; min-width:130px;
  padding:18px 0 0;
  border-top:2px solid var(--line);
  position:relative;
}
.timeline-step::before{
  content:""; position:absolute; top:-5px; left:0;
  width:8px; height:8px; background:var(--blue);
}
.timeline-step .t-label{ font-weight:600; font-size:14px; }
.timeline-step .t-idx{ font-family:var(--font-mono); font-size:10px; color:var(--light-slate); display:block; margin-bottom:6px; }

/* AI assistant mock */
.assistant-mock{
  background:#fff; border:1px solid var(--line);
  max-width:360px; box-shadow:0 30px 60px -24px rgba(11,18,32,0.25);
}
.assistant-head{
  background:var(--navy); color:#fff; padding:18px 20px;
  display:flex; align-items:center; gap:12px;
}
.assistant-head .m-mark{
  width:28px; height:28px; background:var(--blue);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; font-size:14px;
}
.assistant-head .m-name{ font-weight:600; font-size:14px; }
.assistant-head .m-status{ font-size:11px; color:rgba(255,255,255,0.5); }
.assistant-body{ padding:20px; display:flex; flex-direction:column; gap:10px; }
.assistant-chip{
  border:1px solid var(--line); padding:10px 14px; font-size:13px; color:var(--slate);
  transition:border-color .2s, color .2s;
}
.assistant-chip:hover{ border-color:var(--blue); color:var(--blue); }

/* Form */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.form-grid.full{ grid-template-columns:1fr; }
.field{ display:flex; flex-direction:column; gap:8px; }
.field label{ font-size:12.5px; font-weight:500; color:var(--slate); }
.field input, .field select, .field textarea{
  font-family:var(--font-body); font-size:14px; padding:13px 14px;
  border:1px solid var(--line); background:#fff; color:var(--navy);
  transition:border-color .2s;
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--blue); outline:none; }
@media (max-width:700px){ .form-grid{ grid-template-columns:1fr; } }

/* CTA banner */
.cta-banner{
  background:var(--navy);
  padding:80px 0;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-banner h2{ color:#fff; font-size:clamp(26px,3.4vw,40px); margin-bottom:14px; }
.cta-banner p{ color:rgba(255,255,255,0.6); margin-bottom:32px; font-size:16px; }
.cta-actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; position:relative; z-index:1; }

/* Footer */
.site-footer{ background:var(--navy-2); color:rgba(255,255,255,0.6); padding:80px 0 32px; }
.footer-top{
  display:grid; grid-template-columns:1.4fr repeat(5,1fr);
  gap:32px; padding-bottom:56px; border-bottom:1px solid var(--line-on-navy);
}
.footer-brand .brand-mark{ color:#fff; }
.footer-tagline{ font-family:var(--font-mono); font-size:11px; letter-spacing:.1em; color:var(--electric); margin-top:10px; }
.footer-col h4{ font-size:12px; letter-spacing:.06em; color:rgba(255,255,255,0.4); text-transform:uppercase; font-weight:600; margin-bottom:16px; }
.footer-col ul li{ margin-bottom:10px; }
.footer-col a{ font-size:13.5px; color:rgba(255,255,255,0.65); transition:color .2s; }
.footer-col a:hover{ color:#fff; }
.footer-bottom{
  padding-top:28px; display:flex; justify-content:space-between; align-items:center;
  font-size:12.5px; color:rgba(255,255,255,0.35); flex-wrap:wrap; gap:12px;
}
@media (max-width:900px){
  .footer-top{ grid-template-columns:repeat(2,1fr); }
}

/* Page hero (interior pages, lighter) */
.page-hero{
  background:var(--navy);
  color:#fff;
  padding:168px 0 88px;
  position:relative;
  overflow:hidden;
}
.page-hero .container{ position:relative; z-index:2; max-width:760px; }
.page-hero h1{ font-size:clamp(32px,4.2vw,52px); margin:16px 0 18px; line-height:1.08; }
.page-hero p{ font-size:16px; color:rgba(255,255,255,0.62); line-height:1.6; max-width:560px; margin-bottom:32px; }

/* Breadcrumb-ish path */
.mono-path{ font-family:var(--font-mono); font-size:11px; color:var(--light-slate); letter-spacing:.05em; }

/* Utility */
.mt-64{ margin-top:64px; }
.text-center{ text-align:center; margin-left:auto; margin-right:auto; }