*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --navy:#0b1420;--navy-mid:#101e2e;--navy-alt:#0d1a28;
  --cream:#e8e2d4;--text:#c9c4b9;--dim:#8a8676;
  --gold:#c9a96a;--gold-bg:rgba(201,169,106,.08);
  --border:rgba(201,169,106,.18);--border-s:rgba(232,226,212,.06);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--navy);color:var(--text);
  font-family:'Inter','DM Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  font-size:15px;line-height:1.65;font-weight:300;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--gold);text-decoration:none}
em{font-style:italic;color:var(--gold)}
h1,h2,h3{font-family:'Cormorant Garamond','Playfair Display',serif;font-weight:300;color:var(--cream);letter-spacing:-.5px}
h1{font-size:clamp(38px,5.5vw,64px);line-height:1.05}
h2{font-size:clamp(28px,4vw,42px);line-height:1.15;margin-bottom:18px}
h3{font-size:21px;line-height:1.3}
p{margin-bottom:16px}
strong{color:var(--cream);font-weight:500}

/* Nav */
nav{
  position:fixed;top:0;left:0;right:0;z-index:200;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 56px;background:rgba(11,20,32,.7);backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;transition:all .3s;
}
nav.scrolled{padding:12px 56px;border-color:var(--border-s);background:rgba(11,20,32,.92)}
.logo{font-family:'Cormorant Garamond',serif;font-size:24px;letter-spacing:6px;color:var(--cream)}
.logo a{color:inherit}
.nav-cta{
  background:var(--gold);color:var(--navy);
  font-family:'DM Sans',sans-serif;font-size:11px;font-weight:600;
  letter-spacing:2px;text-transform:uppercase;
  padding:11px 22px;transition:opacity .25s;
}
.nav-cta:hover{opacity:.9}

/* Layout */
.wrap{max-width:1200px;margin:0 auto;padding:0 56px}
section{padding:96px 56px}
.eyebrow{
  font-size:11px;letter-spacing:3px;text-transform:uppercase;
  color:var(--gold);margin-bottom:18px;font-weight:500;
}
.sec-label{
  font-size:10px;letter-spacing:3.5px;text-transform:uppercase;
  color:var(--gold);margin-bottom:14px;font-weight:500;
}

/* Hero satellite (plus compact que le hero principal) */
#hero-seo{
  padding:160px 56px 80px;
  background:linear-gradient(180deg,#0b1420 0%,#0d1a28 100%);
  border-bottom:1px solid var(--border);
}
.breadcrumb{
  font-size:11px;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--dim);margin-bottom:24px;
}
.breadcrumb a{color:var(--dim);transition:color .25s}
.breadcrumb a:hover{color:var(--gold)}
.hero-seo-content{max-width:820px}
.hero-seo-content h1{margin-bottom:22px}
.hero-seo-content h1 em{display:inline}
.hero-seo-sub{
  font-size:18px;line-height:1.6;color:var(--text);
  max-width:680px;margin-bottom:32px;
}
.hero-seo-sub strong{color:var(--cream)}
.hero-seo-cta{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--gold);color:var(--navy);
  font-family:'DM Sans',sans-serif;font-size:12px;font-weight:600;
  letter-spacing:2px;text-transform:uppercase;
  padding:16px 28px;transition:transform .25s;
}
.hero-seo-cta:hover{transform:translateY(-2px)}

/* Trust strip */
.trust-strip{
  background:var(--navy-alt);border-bottom:1px solid var(--border-s);
  padding:18px 56px;
  display:flex;flex-wrap:wrap;justify-content:center;gap:32px;
}
.trust-strip span{
  font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--dim);
}
.trust-strip span::before{
  content:'';display:inline-block;width:5px;height:5px;background:var(--gold);
  border-radius:50%;margin-right:10px;vertical-align:middle;
}

/* Sections de contenu */
.cols-2{display:grid;grid-template-columns:5fr 7fr;gap:72px;align-items:start}
.cols-left{position:sticky;top:100px}
.cols-left p{font-size:14px;color:var(--dim);line-height:1.9;margin-top:8px}

/* Bloc "problématiques" / "solutions" */
.block-list{display:flex;flex-direction:column;gap:2px}
.block-item{
  background:var(--navy-mid);border:1px solid var(--border-s);
  padding:24px 28px;transition:border-color .3s;
}
.block-item:hover{border-color:var(--border)}
.block-item h3{
  font-family:'Cormorant Garamond',serif;font-size:19px;
  color:var(--cream);margin-bottom:10px;font-weight:400;
}
.block-item p{font-size:14px;color:var(--text);line-height:1.75;margin:0}

/* Process / délais */
.process{
  display:grid;grid-template-columns:repeat(3,1fr);gap:2px;
  margin-top:32px;
}
.process-step{
  background:var(--navy-mid);border:1px solid var(--border-s);
  padding:32px 24px;text-align:center;
}
.process-num{
  font-family:'Cormorant Garamond',serif;font-size:42px;
  color:var(--gold);font-weight:300;line-height:1;margin-bottom:12px;
}
.process-step h4{
  font-size:13px;letter-spacing:2px;text-transform:uppercase;
  color:var(--cream);margin-bottom:8px;font-weight:500;
}
.process-step p{font-size:12px;color:var(--dim);margin:0}

/* Cas */
.cas-mini{
  background:var(--navy-alt);border:1px solid var(--border);
  padding:36px 40px;margin-top:48px;
  display:grid;grid-template-columns:auto 1fr;gap:32px;align-items:center;
}
.cas-mini-num{
  font-family:'Cormorant Garamond',serif;font-size:64px;
  color:var(--gold);line-height:1;
}
.cas-mini h4{
  font-size:11px;letter-spacing:2.5px;text-transform:uppercase;
  color:var(--gold);margin-bottom:8px;font-weight:500;
}
.cas-mini p{font-size:14px;color:var(--cream);line-height:1.7;margin:0}

/* FAQ */
.faq-item{
  background:var(--navy-mid);border:1px solid var(--border-s);
  margin-bottom:2px;transition:border-color .3s;
}
.faq-item:hover{border-color:var(--border)}
.faq-q{
  width:100%;text-align:left;cursor:pointer;background:none;border:none;
  color:var(--cream);font-family:'DM Sans',sans-serif;
  font-size:14px;font-weight:500;padding:22px 28px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-q:hover{color:var(--gold)}
.faq-q-icon{color:var(--gold);font-size:18px;font-weight:300;transition:transform .3s}
.faq-item.open .faq-q-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease}
.faq-item.open .faq-a{max-height:500px;padding:0 28px 22px}
.faq-a p{font-size:13px;color:var(--dim);line-height:1.85;margin:0}

/* Maillage interne */
#related{
  background:var(--navy-alt);border-top:1px solid var(--border);
  padding:80px 56px;
}
.related-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:2px;margin-top:32px;
}
.related-card{
  background:var(--navy-mid);border:1px solid var(--border-s);
  padding:32px 28px;text-decoration:none;display:block;
  transition:border-color .3s,transform .3s;
}
.related-card:hover{border-color:var(--gold);transform:translateY(-3px)}
.related-card h4{
  font-family:'Cormorant Garamond',serif;font-size:22px;
  color:var(--cream);margin-bottom:8px;font-weight:400;
}
.related-card p{font-size:13px;color:var(--dim);margin-bottom:16px;line-height:1.6}
.related-arrow{color:var(--gold);font-size:12px;letter-spacing:1.5px;text-transform:uppercase;font-weight:500}

/* CTA final */
#cta-final{
  text-align:center;padding:96px 56px;
  background:var(--navy);border-top:1px solid var(--border);
}
#cta-final h2{margin-bottom:18px}
#cta-final p{
  max-width:560px;margin:0 auto 32px;
  font-size:15px;color:var(--text);line-height:1.7;
}

/* Footer */
footer{
  padding:32px 56px;background:var(--navy-alt);
  border-top:1px solid var(--border-s);
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:16px;
}
.footer-copy{font-size:11px;color:var(--dim);letter-spacing:1px}
.footer-links{display:flex;gap:24px}
.footer-links a{font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--dim);transition:color .25s}
.footer-links a:hover{color:var(--gold)}

/* Responsive */
@media(max-width:960px){
  nav{padding:14px 24px}
  nav.scrolled{padding:10px 24px}
  .nav-cta{padding:9px 16px;font-size:10px}
  section,#hero-seo,#related,#cta-final,footer,.trust-strip{padding-left:24px;padding-right:24px}
  #hero-seo{padding-top:120px;padding-bottom:60px}
  .cols-2{grid-template-columns:1fr;gap:36px}
  .cols-left{position:static}
  .process,.related-grid{grid-template-columns:1fr}
  .cas-mini{grid-template-columns:1fr;gap:16px;text-align:center}
  .cas-mini-num{font-size:48px}
  .trust-strip{gap:18px;padding:14px 24px}
  .trust-strip span{font-size:10px}
  footer{flex-direction:column;align-items:flex-start;text-align:left}
  .footer-links{flex-wrap:wrap;gap:14px}
  .hero-seo-sub{font-size:16px}
}
@media(max-width:480px){
  h1{font-size:clamp(30px,8vw,40px)}
  h2{font-size:clamp(24px,6vw,32px)}
  section,#hero-seo,#related,#cta-final{padding-left:20px;padding-right:20px}
  nav{padding:12px 20px}
  .block-item{padding:20px}
  .cas-mini{padding:24px 20px}
  .faq-q{padding:18px 20px;font-size:13px}
  .faq-item.open .faq-a{padding:0 20px 18px}
}