:root{
  --bg: #171716;
  --bg-alt: #1e1e1d;
  --panel: #262524;
  --line: rgba(243,242,240,0.12);
  --ink: #f4f3f0;
  --muted: #a7a29a;
  --pill-bg: #f4f3f0;
  --pill-text: #171716;
  --gold: #c9a24a;
  --gold-light: #e3c778;
  --maxw: 1220px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter', system-ui, sans-serif;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;}
img{max-width:100%; display:block;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 32px;}
.eyebrow{
  text-transform:lowercase;
  letter-spacing:0.02em;
  font-size:15px;
  font-weight:600;
  color:var(--muted);
}

/* NAV */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(23,23,22,0.82);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
nav.wrap{
  display:flex; align-items:center; justify-content:space-between;
  padding-top:22px; padding-bottom:22px;
}
.logo{
  font-size:20px; font-weight:800; letter-spacing:-0.02em;
  color:var(--ink); text-decoration:none;
}
.navlinks{display:flex; gap:36px; list-style:none; margin:0; padding:0;}
.navlinks a{
  text-decoration:none; color:var(--muted); font-size:15px; font-weight:400;
  transition:color .2s;
}
.navlinks a:hover{color:var(--ink);}
.navlinks a.active{color:var(--ink); font-weight:600;}
.nav-meta{font-size:14px; color:var(--muted); white-space:nowrap;}
.menu-toggle{display:none;}
.lang-switch{display:flex; gap:4px; font-size:13px; font-weight:600; letter-spacing:0.04em;}
.lang-switch a{
  color:var(--muted); text-decoration:none; padding:6px 8px; border-radius:999px;
  transition:color .2s, background .2s;
}
.lang-switch a:hover{color:var(--ink);}
.lang-switch a.active{color:var(--pill-text); background:var(--pill-bg);}

/* HERO */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;
  align-items:flex-end;
  background:#0d0d0c;
  overflow:hidden;
}
.hero-bg{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
  object-position:50% 20%;
  filter:saturate(0.9) contrast(1.05);
  background:#0d0d0c;
}
.hero-scrim{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(13,13,12,0.15) 0%, rgba(13,13,12,0.35) 45%, rgba(13,13,12,0.92) 100%),
    linear-gradient(90deg, rgba(13,13,12,0.55) 0%, rgba(13,13,12,0.05) 55%);
}
.hero-inner{
  position:relative; z-index:2;
  padding:0 32px 88px;
  max-width:var(--maxw);
  margin:0 auto;
  width:100%;
}
.hero-eyebrow{
  font-size:15px; font-weight:600; letter-spacing:0.02em;
  color:#d8d5cf; margin:0 0 20px;
  text-transform:lowercase;
}
.hero h1{
  font-size:clamp(38px, 6vw, 96px);
  font-weight:800;
  line-height:0.98;
  letter-spacing:-0.02em;
  margin:0 0 24px;
  color:#ffffff;
  max-width:640px;
  text-shadow:0 2px 24px rgba(0,0,0,0.45);
}
.hero p.tagline{
  font-size:clamp(17px, 1.6vw, 21px); font-weight:600; line-height:1.4;
  color:var(--gold-light); margin:0 0 22px; max-width:560px;
}
.hero p.tagline span{font-weight:800; color:#ffffff;}
.hero p.lead{
  font-size:18px;
  color:#d8d5cf;
  max-width:480px;
  margin:0 0 28px;
  line-height:1.5;
}
.cta-row{display:flex; gap:14px; flex-wrap:wrap; align-items:center;}
.btn-primary{
  display:inline-flex; align-items:center; gap:8px;
  padding:16px 30px;
  border-radius:999px;
  background:var(--pill-bg);
  color:#171614;
  font-weight:600;
  font-size:15px;
  text-decoration:none;
  transition:transform .2s, background .2s;
}
.btn-primary:hover{transform:translateY(-1px); background:#ffffff;}
.btn-ghost{
  display:inline-flex; align-items:center; gap:8px;
  padding:16px 28px;
  border-radius:999px;
  border:1px solid rgba(244,243,240,0.35);
  color:#f4f3f0;
  font-weight:600;
  font-size:15px;
  text-decoration:none;
  transition:border-color .2s, background .2s;
}
.btn-ghost:hover{border-color:#f4f3f0; background:rgba(244,243,240,0.08);}

/* SECTION SHELL */
section{padding:120px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px; margin:0 0 56px;}
.section-head h2{
  font-size:clamp(38px, 5vw, 64px);
  font-weight:800;
  letter-spacing:-0.015em;
  line-height:1.02;
  margin:18px 0 0;
  color:var(--ink);
}
.section-head p.sub{
  font-size:20px;
  color:var(--muted);
  margin:20px 0 0;
  max-width:620px;
  line-height:1.5;
}

/* CONSTAT */
.constat-grid{
  display:grid; grid-template-columns: 1fr 0.85fr; gap:72px; align-items:start;
}
.constat-grid p.lead{
  font-size:22px; color:#d8d5cf; line-height:1.5; margin:0 0 40px;
}
.tag-row{display:flex; flex-wrap:wrap; gap:12px; margin:0 0 40px;}
.tag{
  background:var(--pill-bg); color:#171614;
  font-size:15px; font-weight:600;
  padding:10px 20px; border-radius:999px;
  white-space:nowrap;
}
.callout{
  font-size:20px; line-height:1.55; color:var(--ink); margin:0; max-width:640px;
}
.callout b{font-weight:600;}
.callout u{text-decoration-color:rgba(244,243,240,0.4);}
.constat-photo{
  border-radius:4px; overflow:hidden;
  aspect-ratio:4/5;
}
.constat-photo img{width:100%; height:100%; object-fit:cover; object-position:center 15%;}

/* METHODE */
.pillars{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.pillar{
  background:var(--bg);
  padding:44px 48px;
}
.pillar .icon{font-size:26px; margin-bottom:18px; display:block;}
.pillar h3{font-size:22px; font-weight:600; margin:0 0 12px; color:var(--ink);}
.pillar p{font-size:16px; line-height:1.55; color:var(--muted); margin:0; max-width:440px;}

/* A PROPOS */
.about{
  display:grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap:72px;
  align-items:center;
}
.about-photo{border-radius:4px; overflow:hidden; align-self:start;}
.about-photo img{width:100%; display:block; aspect-ratio:4/5; object-fit:cover; object-position:top;}
.about-text h2{margin:16px 0 24px;}
.tag-inline{display:flex; gap:10px; flex-wrap:wrap; margin:0 0 26px;}
.about-text p{font-size:18px; line-height:1.6; color:var(--muted); margin:0 0 18px;}
.about-text p strong{color:var(--ink); font-weight:600;}
.strengths-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  column-gap:64px; row-gap:48px;
}
.strength-item{background:none; padding:0;}
.strength-item .icon{display:none;}
.strength-item h3{font-size:21px; font-weight:600; margin:0 0 14px; color:var(--ink);}
.strength-item p{font-size:15.5px; line-height:1.6; color:var(--muted); margin:0; max-width:480px;}

/* PUBLICS */
.publics-wrap{position:relative;}
.watermark{
  position:absolute; top:-10px; left:0; z-index:0;
  font-size:clamp(90px, 14vw, 220px);
  font-weight:800; color:rgba(244,243,240,0.045);
  letter-spacing:-0.02em; line-height:1; white-space:nowrap;
  pointer-events:none;
}
.publics-list{
  position:relative; z-index:1;
  display:grid; grid-template-columns:repeat(5, 1fr); gap:16px; margin-top:64px;
}
.public-item{
  display:flex; flex-direction:column; align-items:flex-start; gap:14px;
  padding:28px 22px;
  border:1px solid var(--line); border-radius:4px;
}
.public-item .emoji{font-size:28px;}
.public-item p{margin:0; font-size:16px; font-weight:600; color:var(--ink);}
.publics-photos{
  position:relative; z-index:1;
  display:grid; grid-template-columns:repeat(2, 1fr); gap:1px;
  margin-top:24px; background:var(--line); border:1px solid var(--line);
}
.clients{position:relative; z-index:1; margin-top:64px;}
.clients .eyebrow{margin:0 0 24px;}
.client-logos{
  list-style:none; margin:0; padding:32px 0;
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:36px 48px;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
}
.client-logos img{width:auto; max-width:100%; opacity:0.72; transition:opacity .2s;}
.client-logos img:hover{opacity:1;}
.case-study{
  position:relative; z-index:1;
  display:grid; grid-template-columns:150px 1fr; gap:28px; align-items:center;
  margin-top:40px; padding:24px; border:1px solid var(--line); border-radius:4px;
  background:var(--panel);
}
.case-study img{width:150px; height:190px; object-fit:cover; object-position:top; border-radius:4px; display:block;}
.case-study .case-name{font-size:19px; font-weight:600; color:var(--ink); margin:6px 0 6px;}
.case-study .case-desc{font-size:15px; color:var(--muted); margin:0; line-height:1.55; max-width:520px;}
.publics-photos img{width:100%; height:220px; object-fit:cover; display:block;}

/* OFFRES */
.offers{display:grid; grid-template-columns:repeat(3, 1fr); gap:1px; background:var(--line); border:1px solid var(--line);}
.offer{background:var(--bg-alt); padding:44px 40px; display:flex; flex-direction:column; gap:22px; justify-content:space-between;}
.offer h3{font-size:24px; font-weight:600; margin:0; color:var(--ink);}
.offer .format{font-size:14px; color:var(--muted); text-transform:lowercase; margin-top:6px;}
.offer p.desc{font-size:15.5px; color:var(--muted); line-height:1.55; margin:0;}
.offer .price{font-size:19px; font-weight:600; color:var(--ink);}
.offer .price span{display:block; font-size:13.5px; font-weight:400; color:var(--muted); margin-top:2px;}
.offer-cta{
  text-align:center; padding:13px 0; border-radius:999px;
  border:1px solid #ffffff; background:#ffffff; color:#171614;
  text-decoration:none; font-weight:600; font-size:14.5px;
  transition:border-color .2s, background .2s, color .2s, transform .2s;
}
.offer-cta:hover{border-color:var(--gold); background:var(--gold); color:#1a1509; transform:translateY(-1px);}

/* CONTACT */
.contact-section{background:#0d0d0c; text-align:left; position:relative; overflow:hidden;}
.contact-section::before{
  content:""; position:absolute; top:50%; right:6%;
  width:min(36vw, 460px); aspect-ratio:568/359; transform:translateY(-50%);
  background:url("../assets/images/contact-watermark.png") center/contain no-repeat;
  filter:brightness(0) invert(1);
  opacity:0.12; pointer-events:none;
}
.contact-inner{max-width:900px; position:relative; z-index:1;}
@media (max-width:760px){
  .contact-section::before{right:50%; transform:translate(50%, -50%); width:70vw; opacity:0.07;}
}
.contact-inner h2{
  font-size:clamp(44px, 7vw, 96px);
  font-weight:800; letter-spacing:-0.02em; line-height:0.98;
  margin:20px 0 32px; color:#ffffff;
}
.contact-inner p{font-size:19px; color:#c9c5be; max-width:560px; margin:0 0 40px; line-height:1.55;}

footer{padding:44px 0; border-top:1px solid var(--line);}
footer .wrap{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px;}
footer p{margin:0; font-size:14px; color:var(--muted);}
footer p.foot-tagline{margin-top:6px; color:var(--gold);}
footer .foot-links{display:flex; gap:24px;}
footer .foot-links a{font-size:14px; color:var(--muted); text-decoration:none;}
footer .foot-links a:hover{color:var(--ink);}

@media (max-width: 900px){
  .navlinks, .nav-meta{display:none;}
  .constat-grid, .about, .pillars, .offers{grid-template-columns:1fr;}
  .publics-list{grid-template-columns:repeat(2, 1fr);}
  .client-logos{justify-content:center; gap:28px 36px;}
  .strengths-grid{grid-template-columns:1fr; row-gap:36px;}
  section{padding:80px 0;}
  .pillar{padding:36px 32px;}
}