:root{
  --night:#0b132b;--night-2:#07152f;
  --gold:#d4af37;        /* accent vif — eyebrows & chiffres sur fond sombre (comme la home) */
  --gold-btn:#c6a23a;    /* boutons & header */
  --gold-dark:#8a6e2a;   /* eyebrows & chiffres sur fond clair */
  --satin:#e5e5ea;--ink:#1c1c1e
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:#fff;color:var(--ink);font-family:Inter,system-ui,sans-serif;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.serif{font-family:"Playfair Display",Georgia,serif;font-weight:500}
/* « & » toujours en Inter dans les titres serif — même correction que la home */
.amp{font-family:Inter,system-ui,sans-serif;font-weight:500;font-style:normal}
.container{width:min(1180px,calc(100% - 40px));margin-inline:auto}

/* Header (identique à la home : doré, logo, nav) */
.site-header{position:fixed;inset:0 0 auto;z-index:50;background:var(--gold-btn);border-bottom:1px solid rgba(90,65,10,.28)}
.header-inner{min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand img{width:auto;height:46px}
.main-nav{display:flex;align-items:center;gap:18px;white-space:nowrap;font-size:.66rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:rgba(255,255,255,.88)}
.main-nav a,.mobile-nav a{transition:color .2s ease}.main-nav a:hover,.main-nav a[aria-current="page"]{color:#fff}
.header-contact{border:1px solid rgba(255,255,255,.65);padding:9px 14px;font-size:.62rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:#fff;transition:background .2s ease,color .2s ease}
.header-contact:hover{background:#fff;color:var(--night)}
.menu-toggle{display:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.55);background:transparent;color:#fff}
.mobile-panel{display:none}

/* Hero */
.hero{padding:102px 0 58px;background:var(--night);color:#fff;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-8%;bottom:-95%;width:440px;height:440px;border:1px solid rgba(212,175,55,.18);border-radius:50%}
.eyebrow{margin:0 0 18px;color:var(--gold);font-size:.7rem;font-weight:700;letter-spacing:.28em;text-transform:uppercase}
.hero h1{max-width:850px;margin:0;font-weight:600;font-size:clamp(2.4rem,4.4vw,4.2rem);line-height:1.05}
.hero-lead{max-width:790px;margin:24px 0 0;color:rgba(229,229,234,.78);font-size:clamp(1rem,1.8vw,1.14rem);line-height:1.8}

/* Lien retour */
.backlink{display:inline-flex;align-items:center;gap:9px;margin:0 0 30px;color:var(--gold);font-size:.66rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;transition:gap .2s ease,color .2s ease}
.backlink:hover{gap:14px;color:#fff}
.backlink .ar{font-size:1.05rem;line-height:1}

/* Sections */
.section{padding:100px 0}.section.white{background:#fff}.section.soft{background:#f4f1e9}.section.night{background:var(--night);color:#fff}
.section.white .eyebrow,.section.soft .eyebrow{color:var(--gold-dark)}
.section-head{max-width:760px}.section-head.center{margin-inline:auto;text-align:center}
.section h2{margin:0;font-weight:500;font-size:clamp(2.35rem,4vw,4rem);line-height:1.08}
.section-copy{margin-top:26px;color:rgba(28,28,30,.68);font-size:1rem;line-height:1.95}.night .section-copy{color:rgba(229,229,234,.72)}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:center}
.portrait{aspect-ratio:4/5;width:100%;object-fit:cover;filter:grayscale(15%)}
.institutional-photo{aspect-ratio:16/10;width:100%;object-fit:cover;filter:grayscale(100%)}
.prose{color:rgba(28,28,30,.7);font-size:1rem;line-height:1.95}.prose p{margin:0 0 19px}.prose .quote{border-left:2px solid var(--gold-btn);padding-left:22px;color:var(--ink);font-family:"Playfair Display",Georgia,serif;font-weight:500;font-size:1.2rem;font-style:italic}

/* Cartes services */
.cards-3,.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:54px}
.service-card{position:relative;min-height:340px;border:1px solid rgba(11,19,43,.12);padding:38px;display:flex;flex-direction:column;background:#fff;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.service-card:hover{transform:translateY(-6px);border-color:rgba(198,162,58,.7);box-shadow:0 24px 60px rgba(11,19,43,.12)}
.card-number{color:var(--gold-dark);font-family:"Playfair Display",Georgia,serif;font-weight:600;font-size:1.2rem}
.service-card h2,.service-card h3{margin:50px 0 0;font-family:"Playfair Display",Georgia,serif;font-weight:500;font-size:1.9rem;line-height:1.15}
.service-card p{margin-top:16px;color:rgba(28,28,30,.64);line-height:1.8}
.card-link{margin-top:auto;padding-top:28px;color:var(--gold-dark);font-size:.68rem;font-weight:700;letter-spacing:.17em;text-transform:uppercase;transition:color .2s ease}
.service-card:hover .card-link{color:var(--night)}

/* Bandeau chiffres */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat{border:1px solid rgba(255,255,255,.12);padding:42px 26px;text-align:center;background:rgba(255,255,255,.025);transition:border-color .25s ease,background .25s ease}
.stat:hover{border-color:rgba(212,175,55,.5);background:rgba(212,175,55,.05)}
.stat strong{display:block;color:var(--gold);font-family:"Playfair Display",Georgia,serif;font-weight:500;font-size:clamp(2.6rem,5vw,4.2rem);line-height:1}
.stat span{display:block;margin-top:18px;color:rgba(229,229,234,.7);font-size:.69rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;line-height:1.6}

.philosophy{max-width:900px;margin:auto;text-align:center}
.detail-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:78px;align-items:start}

/* Tuiles d'expertise */
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(11,19,43,.12);border:1px solid rgba(11,19,43,.12)}
.feature{background:#fff;padding:32px;transition:background .25s ease}
.feature:hover{background:#faf7ef}
.feature span{display:block;color:var(--gold-dark);font-family:"Playfair Display",Georgia,serif;font-weight:600;font-size:1.05rem}
.feature h3{margin:14px 0 0;font-family:"Playfair Display",Georgia,serif;font-weight:500;font-size:1.35rem;line-height:1.2}
.feature p{margin:12px 0 0;color:rgba(28,28,30,.64);font-size:.92rem;line-height:1.7}

/* CTA */
.cta{padding:90px 0;text-align:center;background:var(--night-2);color:#fff}
.cta h2{max-width:760px;margin:0 auto;font-weight:500;font-size:clamp(2.3rem,4vw,4rem)}
.button{display:inline-flex;min-height:50px;align-items:center;justify-content:center;margin-top:34px;padding:0 30px;background:var(--gold-btn);color:#fff;font-size:.7rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;transition:transform .2s ease,background .2s ease}
.button:hover{transform:translateY(-2px);background:#aa872d}
.button.ghost{background:transparent;border:1px solid rgba(255,255,255,.4)}.button.ghost:hover{background:#fff;color:var(--night);border-color:#fff}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{background:var(--night-2);border-top:1px solid rgba(198,162,58,.35);color:rgba(229,229,234,.58)}
.footer-inner{min-height:92px;display:flex;align-items:center;justify-content:space-between;gap:28px;font-size:.68rem;flex-wrap:wrap}
.footer-links,.footer-nav{display:flex;gap:20px;flex-wrap:wrap}.footer-nav{text-transform:uppercase;font-weight:700;letter-spacing:.11em}.footer-inner a:hover{color:#fff}
.contact-icons{display:flex;gap:10px}.contact-icons a{width:36px;height:36px;border:1px solid rgba(255,255,255,.14);display:grid;place-items:center;transition:border-color .2s ease,color .2s ease}.contact-icons a:hover{border-color:var(--gold);color:#fff}.contact-icons svg{width:16px;height:16px}

.fade{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}.fade.visible{opacity:1;transform:none}

@media(max-width:1050px){
  .main-nav{display:none}.header-contact{display:none}.menu-toggle{display:block}
  .mobile-panel{position:absolute;top:100%;left:0;right:0;background:var(--night);padding:12px 20px 22px}.mobile-panel.open{display:block}
  .mobile-nav{display:flex;flex-direction:column}.mobile-nav a{border-bottom:1px solid rgba(255,255,255,.08);padding:13px 0;color:rgba(229,229,234,.8);font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
  .split,.detail-grid{grid-template-columns:1fr;gap:44px}.cards-3{grid-template-columns:1fr 1fr}.stats{grid-template-columns:1fr 1fr}.footer-inner{padding:24px 0}
}
@media(max-width:680px){
  .container{width:min(100% - 32px,1180px)}.header-inner{min-height:52px}.brand img{height:42px}
  .hero{padding:92px 0 50px}.section{padding:64px 0}
  .cards-3,.stats,.feature-list{grid-template-columns:1fr}
  .service-card{min-height:auto;padding:30px}.service-card h2,.service-card h3{margin-top:34px}
  .footer-inner{align-items:flex-start;flex-direction:column}.footer-nav{gap:14px}.hero:after{display:none}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.fade{opacity:1;transform:none;transition:none}.service-card,.button,.stat,.feature{transition:none}}