:root{
  --ink:#1A1D21;
  --paper:#F7F6F3;
  --steel:#2B4C6F;
  --logo-blue:#61738A;
  --steel-deep:#1E3A57;
  --taupe:#8B8175;
  --taupe-readable:#6F665B;
  --brass:#B7ADA5;
  --line:#D9D5CC;
  --white:#FFFFFF;
}

*{margin:0;padding:0;box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter',system-ui,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
}

h1,h2,h3,.display{
  font-family:'Archivo Expanded',sans-serif;
  text-transform:uppercase;
  letter-spacing:-0.01em;
}

a{color:inherit;text-decoration:none;}
img{display:block; max-width:100%;}

.wrap{max-width:1180px;margin:0 auto;padding:0 32px;}

a:focus-visible, button:focus-visible{
  outline:3px solid var(--steel);
  outline-offset:3px;
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important; transition-duration:0.01ms !important;}
}

/* ───────── Header ───────── */
header{
  position:sticky; top:0; z-index:100;
  background:rgba(247,246,243,0.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 32px; max-width:1180px; margin:0 auto;
}
.logo-img{height:60px; width:auto;}
.nav-links{display:flex; gap:32px; font-size:14px; font-weight:600; letter-spacing:0.02em;}
.nav-links a{position:relative; padding-bottom:4px; transition:color .2s;}
.nav-links a:hover, .nav-links a.active{color:var(--steel);}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:2px;
  background:var(--brass); transition:width .25s ease;
}
.nav-links a:hover::after, .nav-links a.active::after{width:100%;}
.nav-cta{
  background:var(--ink); color:var(--paper);
  padding:11px 22px; font-size:14px; font-weight:600;
  border-radius:2px; letter-spacing:0.02em;
  transition:background .2s; white-space:nowrap;
}
.nav-cta:hover{background:var(--steel);}
.burger{display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px;}
.burger span{width:24px; height:2px; background:var(--ink);}

/* ───────── Bouton ───────── */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:15px 28px; font-size:14px; font-weight:600; letter-spacing:0.02em;
  border-radius:2px; transition:all .2s; cursor:pointer; border:1px solid transparent;
}
.btn-primary{background:var(--brass); color:var(--ink);}
.btn-primary:hover{background:#C7BFB7; transform:translateY(-1px);}
.btn-ghost{border-color:rgba(247,246,243,0.3); color:var(--paper);}
.btn-ghost:hover{border-color:var(--paper); background:rgba(247,246,243,0.06);}
.btn-ghost-dark{border-color:var(--line); color:var(--ink);}
.btn-ghost-dark:hover{border-color:var(--ink); background:rgba(0,0,0,0.03);}

/* ───────── Section générique ───────── */
section{padding:100px 0;}
.section-head{margin-bottom:56px; max-width:680px;}
.eyebrow{
  font-size:13px; font-weight:700; letter-spacing:0.1em; text-transform:uppercase;
  color:var(--steel); margin-bottom:16px; display:flex; align-items:center; gap:10px;
}
.eyebrow::before{content:""; width:20px; height:1px; background:var(--brass);}
.eyebrow.on-dark{color:var(--brass);}
.section-head h2{font-size:clamp(28px,3.6vw,44px); line-height:1.05; font-weight:800; color:var(--logo-blue);}
.sectors .section-head h2{color:var(--paper);}
.section-head p{margin-top:18px; color:var(--taupe); font-size:17px; max-width:560px;}

/* ───────── Bandeau références ───────── */
.refs-bar{background:var(--white); border-bottom:1px solid var(--line); padding:26px 32px;}
.refs-inner{
  max-width:1180px; margin:0 auto; display:flex; align-items:center; gap:40px;
  flex-wrap:wrap; justify-content:space-between;
}
.refs-label{font-size:12px; font-weight:600; letter-spacing:0.1em; color:var(--taupe-readable); text-transform:uppercase;}
.refs-list{display:flex; gap:30px; flex-wrap:wrap; align-items:center;}
.refs-list img{height:32px; width:auto; object-fit:contain; opacity:0.9; transition:opacity .25s;}
.refs-list img:hover{opacity:1;}

.refs-band{background:var(--white); border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:60px 0;}
.refs-band-label{font-size:13px; font-weight:700; letter-spacing:0.1em; text-transform:uppercase; color:var(--taupe-readable); text-align:center; margin-bottom:40px;}
.refs-band-logos{display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:52px;}
.refs-band-logos img{height:50px; width:auto; object-fit:contain; opacity:0.9; transition:opacity .25s;}
.refs-band-logos img:hover{opacity:1;}

.certs-band{background:var(--white); border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:56px 0;}
.certs-band-label{font-size:13px; font-weight:700; letter-spacing:0.1em; text-transform:uppercase; color:var(--taupe-readable); text-align:center; margin-bottom:8px;}
.certs-band-sub{font-size:14px; color:var(--taupe-readable); text-align:center; max-width:580px; margin:0 auto 34px; line-height:1.6;}
.certs-band-logos{display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:48px;}
.certs-band-logos img{height:60px; width:auto; object-fit:contain;}
.certs-band-logos img.logo-cekal{height:120px;}

/* ───────── Footer ───────── */
footer{background:var(--steel); color:#DCE1E7; padding:48px 0 32px;}
.footer-inner{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px;}
.footer-logo{height:30px; filter:brightness(0) invert(1) opacity(0.85);}
.footer-links{display:flex; gap:28px; font-size:13.5px;}
.footer-links a:hover{color:var(--paper);}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.18); margin-top:32px; padding-top:24px; font-size:12.5px; color:#BFC8D2; line-height:1.7;}

/* ───────── Reveal animation ───────── */
.reveal{opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1; transform:translateY(0);}

@media (max-width:860px){
  .nav-links{display:none;}
  .burger{display:flex;}
  .nav-cta{display:none;}
  section{padding:72px 0;}
  .wrap{padding:0 22px;}
  .refs-bar{padding:22px;}
  .refs-inner{gap:18px; justify-content:center; text-align:center;}
  .refs-list{justify-content:center; gap:22px 26px;}
  .refs-list img{height:28px;}
  .refs-band{padding:44px 0;}
  .refs-band-label{margin-bottom:28px;}
  .refs-band-logos{gap:26px 32px;}
  .refs-band-logos img{height:36px;}
  .certs-band{padding:40px 0;}
  .certs-band-logos{gap:28px 34px;}
  .certs-band-logos img{height:44px;}
  .certs-band-logos img.logo-cekal{height:88px;}
}