/* ══════════════════════════════════════════════
   SMARTERIAL SOLUTIONS — DESIGN SYSTEM v11
   Fond noir · Texte blanc (#fff / #e5e5e5)
   Typographie: Cormorant Garamond + DM Sans
   ══════════════════════════════════════════════ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --noir:#080b0e;
  --noir2:#0d1117;
  --ardoise:#111820;
  --ardoise2:#16202a;
  --ardoise3:#1a2530;
  --vert:#2a6348;
  --vert-m:#357a5b;
  --vert-clair:#4faa7d;
  --vert-vif:#5fc490;
  --blanc:#ffffff;
  --blanc-att:#e5e5e5;
  --gris-mid:#a0aab4;
  --ligne:rgba(79,170,125,.15);
  --nav-h:72px;
  --pad:clamp(1.4rem,5vw,4.8rem);
  --r:4px;
  --t:.22s ease;
}

html{scroll-behavior:smooth;overflow-x:hidden;}
body{
  font-family:'DM Sans',sans-serif;
  background:var(--noir);
  color:var(--blanc);
  padding-top:var(--nav-h);
}

/* ── TYPOGRAPHIE ── */
h1,h2,h3,h4{font-family:'Cormorant Garamond',serif;color:var(--blanc);line-height:1.15}
h2{font-size:clamp(1.9rem,3.2vw,2.8rem);font-weight:300;margin-bottom:1.2rem}
h2 em{font-style:normal;color:var(--vert-clair)}
h3{font-size:1rem;font-weight:500;color:var(--blanc);margin-bottom:.5rem;font-family:'DM Sans',sans-serif}
p{font-size:.92rem;line-height:1.9;color:var(--blanc-att);margin-bottom:1.1rem}
a{color:inherit;text-decoration:none}

/* ── NAV ── */
nav{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:200;
  min-height:var(--nav-h);
  padding:6px 18px 6px 18px;
  display:flex;
  flex-wrap:nowrap;
  align-items:center;
  justify-content:space-between;
  background:rgba(8,11,14,.97);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(79,170,125,.12);
  transition:box-shadow .3s;
}
nav.scrolled{box-shadow:0 2px 40px rgba(0,0,0,.6)}

.nav-logo{
  display:flex;
  flex-direction:column;
  justify-content:center;
  line-height:1;
  flex-shrink:0;
  padding-left: 0px;
  position:relative;
  z-index:202;
}
.nav-logo img{
  height:auto;
  width:170px;
  background:white;
  padding:4px 0px;
  border-radius:4px;
  display:block;
}
.nav-logo-main{
  font-family:'Cormorant Garamond',serif;
  font-size:1.3rem;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--blanc);
}
.nav-logo-main span{color:var(--vert-clair)}
.nav-logo small{
  display:block;
  font-size:.60rem;
  font-family:'DM Sans',sans-serif;
  font-weight:500;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:rgba(255,255,255,.80);
  margin-top:3px;
  white-space:nowrap;
}

.nav-right{
  display:flex;
  align-items:center;
  gap:1.8rem;
  margin-left:auto;
}
.nav-links{
  display:flex;
  gap:1.4rem;
  list-style:none;
}
.nav-links a{
  font-size:.71rem;
  font-weight:500;
  letter-spacing:.09em;
  text-transform:uppercase;
  color:rgba(255,255,255,.45);
  transition:color var(--t);
  white-space:nowrap;
}
.nav-links a:hover,
.nav-links a.active{color:var(--vert-clair)}

.nav-cta{
  padding:.42rem 1.1rem !important;
  background:var(--vert) !important;
  color:#fff !important;
  border-radius:var(--r);
  transition:background var(--t) !important;
}
.nav-cta:hover{background:var(--vert-clair) !important}

.lang-switch{
  display:flex;
  align-items:center;
  gap:.3rem;
  flex-shrink:0;
}
.lang-switch a{
  font-size:.65rem;
  font-weight:600;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:rgba(255,255,255,.28);
  padding:.18rem .42rem;
  border-radius:2px;
  border:1px solid transparent;
  transition:all var(--t);
}
.lang-switch a:hover{
  color:var(--vert-clair);
  border-color:rgba(79,170,125,.35);
}
.lang-switch a.current{
  color:var(--vert-clair);
  border-color:rgba(79,170,125,.45);
}
.lang-switch span{
  color:rgba(255,255,255,.12);
  font-size:.6rem;
}

.hamburger,
.burger{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  cursor:pointer;
  padding:.4rem;
  background:none;
  border:none;
  appearance:none;
  -webkit-appearance:none;
}

.hamburger span,
.burger span{
  display:block;
  width:22px;
  height:2px;
  background:rgba(255,255,255,.7);
  border-radius:2px;
  transition:transform .3s,opacity .3s,background .2s;
}

.hamburger.open span:nth-child(1),
.burger.open span:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2),
.burger.open span:nth-child(2){
  opacity:0;
}
.hamburger.open span:nth-child(3),
.burger.open span:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
}

/* ── LABELS ── */
.sec-label{
  font-size:.65rem;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--vert-clair) !important;
  margin-bottom:.9rem;
  display:flex;
  align-items:center;
  gap:.6rem;
}
.sec-label::before{content:'';width:24px;height:1px;background:var(--vert-clair)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  font-size:.66rem;
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--vert-clair);
  margin-bottom:1.5rem;
}
.eyebrow::before{content:'';width:28px;height:1px;background:var(--vert-clair)}

/* ── BOUTONS ── */
.btn-primary{
  display:inline-block;
  padding:.85rem 2rem;
  background:var(--vert);
  color:#fff;
  font-size:.84rem;
  font-weight:500;
  letter-spacing:.05em;
  border-radius:var(--r);
  transition:background var(--t),transform var(--t);
}
.btn-primary:hover{background:var(--vert-clair);transform:translateY(-2px)}
.btn-outline{
  display:inline-block;
  padding:.85rem 2rem;
  border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.8);
  font-size:.84rem;
  letter-spacing:.05em;
  border-radius:var(--r);
  transition:all var(--t);
}
.btn-outline:hover{border-color:var(--vert-clair);color:var(--vert-clair)}
.btn-white{
  display:inline-block;
  align-self:flex-start;
  padding:.8rem 1.8rem;
  background:#fff;
  color:var(--vert);
  font-size:.82rem;
  font-weight:500;
  border-radius:var(--r);
  transition:all var(--t);
}
.btn-white:hover{background:var(--blanc-att);transform:translateY(-2px)}
.btn-outline-light{
  display:inline-block;
  align-self:flex-start;
  padding:.8rem 1.8rem;
  border:1px solid rgba(79,170,125,.4);
  color:var(--vert-clair);
  font-size:.82rem;
  border-radius:var(--r);
  transition:all var(--t);
}
.btn-outline-light:hover{border-color:var(--vert-clair);background:rgba(79,170,125,.08)}

/* ── HERO ── */
.hero{
  background:var(--noir);
  padding:.3rem var(--pad) 3.5rem;
  position:relative;
  overflow:hidden;
  min-height:auto;
}
.hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:
    radial-gradient(ellipse 60% 70% at 90% 30%,rgba(42,99,72,.28) 0%,transparent 60%),
    radial-gradient(ellipse 40% 50% at 5% 85%,rgba(42,99,72,.1) 0%,transparent 55%);
}
.hero-grid{
  position:absolute;
  inset:0;
  opacity:.03;
  background-image:
    linear-gradient(rgba(79,170,125,1) 1px,transparent 1px),
    linear-gradient(90deg,rgba(79,170,125,1) 1px,transparent 1px);
  background-size:65px 65px;
}
.hero-content{
  position:relative;
  max-width:720px;
  width:100%;
  margin-top:0;
  padding-top:0;
}
.hero h1{
  font-family:'Cormorant Garamond',serif;
  font-size:clamp(2.8rem,5.2vw,5rem);
  font-weight:300;
  line-height:1.06;
  color:var(--blanc);
  margin-bottom:1.8rem;
  letter-spacing:-.01em;
  max-width:760px;
}
.hero h1 em{font-style:italic;color:var(--vert-clair)}
.hero-sub{
  font-size:1.08rem;
  line-height:1.85;
  color:var(--blanc-att);
  max-width:580px;
  margin-bottom:1.2rem;
  font-weight:300;
}
.hero-sub strong{color:var(--blanc);font-weight:500}
.hero-cadrage{
  font-size:.9rem;
  line-height:1.85;
  color:rgba(255,255,255,.5);
  max-width:580px;
  margin-bottom:2.6rem;
  font-style:italic;
}
.hero-actions{display:flex;gap:1.1rem;flex-wrap:wrap;margin-bottom:3.5rem}
.hero-proof{
  display:flex;
  gap:3rem;
  flex-wrap:wrap;
  padding-top:2.5rem;
  border-top:1px solid rgba(79,170,125,.14);
}
.proof-num{
  font-family:'Cormorant Garamond',serif;
  font-size:2.1rem;
  font-weight:300;
  color:var(--vert-clair);
  line-height:1;
}
.proof-label{
  font-size:.64rem;
  color:rgba(255,255,255,.4);
  text-transform:uppercase;
  letter-spacing:.1em;
  margin-top:.25rem;
}

/* ── HUB ── */
.hub-section{background:var(--noir2);padding:6.5rem var(--pad)}
.hub-grid{display:grid;grid-template-columns:340px 1fr;gap:4rem;align-items:center}
.hub-intro p{color:var(--blanc-att)}
.hub-visual{
  background:var(--ardoise);
  border:1px solid var(--ligne);
  border-radius:8px;
  overflow:hidden;
  min-height:420px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.hub-svg-wrap{width:100%;padding:2rem}
.hub-node-c{transition:stroke .22s}
a:hover .hub-node-c{stroke:rgba(79,170,125,.85);stroke-width:2.5}

/* ── SCHÉMA CHAÎNE DE VALEUR ── */
.schema-chain{
  display:flex;
  flex-direction:row;
  align-items:stretch;
  justify-content:center;
  gap:2rem;
  max-width:1100px;
  margin:4rem auto 0;
}
.schema-bloc{
  width:320px;
  min-height:190px;
  border-radius:8px;
  padding:2rem 2.2rem;
  text-align:center;
  position:relative;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.schema-bloc.inventeurs{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1)}
.schema-bloc.smarterial{
  background:var(--vert);
  border:2px solid var(--vert-clair);
  box-shadow:0 0 0 4px rgba(79,170,125,.12),0 16px 48px rgba(42,99,72,.35);
  z-index:1;
}
.schema-bloc.marches{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1)}
.schema-bloc-icon{font-size:1.6rem;margin-bottom:.6rem}
.schema-bloc-label{
  font-size:.6rem;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(255,255,255,.4);
  margin-bottom:.35rem;
}
.schema-bloc.smarterial .schema-bloc-label{color:rgba(255,255,255,.65)}
.schema-bloc-title{
  font-family:'Cormorant Garamond',serif;
  font-size:1.45rem;
  font-weight:300;
  color:var(--blanc);
  margin-bottom:.6rem;
}
.schema-bloc-details{font-size:.82rem;line-height:1.8;color:rgba(255,255,255,.45);margin:0}
.schema-bloc.smarterial .schema-bloc-details{color:rgba(255,255,255,.8)}
.schema-arrow{display:flex;flex-direction:column;align-items:center;padding:.5rem 0;gap:.2rem}
.schema-arrow-line{width:2px;height:36px;background:linear-gradient(to bottom,rgba(79,170,125,.3),rgba(79,170,125,.75))}
.schema-arrow-head{width:0;height:0;border-left:7px solid transparent;border-right:7px solid transparent;border-top:10px solid var(--vert-clair)}
.schema-badge{
  position:absolute;
  top:-14px;
  left:50%;
  transform:translateX(-50%);
  background:var(--vert-clair);
  color:#fff;
  font-size:.58rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  padding:.22rem .9rem;
  border-radius:2px;
  white-space:nowrap;
}

/* ── ACTEURS ── */
.acteurs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.8rem;margin-top:2.5rem}
.acteur-card{
  padding:2rem;
  border:1px solid rgba(79,170,125,.15);
  border-radius:var(--r);
  background:rgba(255,255,255,.02);
  transition:border-color var(--t),background var(--t);
  display:flex;
  flex-direction:column;
  gap:1rem;
}
.acteur-card:hover{border-color:rgba(79,170,125,.4);background:rgba(79,170,125,.04)}
.acteur-icon{font-size:1.6rem}
.acteur-card h3{
  font-family:'Cormorant Garamond',serif;
  font-size:1.22rem;
  font-weight:400;
  color:var(--blanc);
  margin:0;
  line-height:1.3;
}
.acteur-card p{font-size:.84rem;line-height:1.8;color:var(--blanc-att);margin:0}
.acteur-accent{color:var(--blanc) !important;font-weight:500 !important;font-size:.84rem !important}
.acteur-card .btn-outline{margin-top:auto}

/* ── DIFFÉRENCIATION ── */
.diff-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.8rem;margin-top:2.5rem}
.diff-card{
  padding:2rem;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(79,170,125,.14);
  border-radius:var(--r);
  transition:border-color var(--t),background var(--t);
}
.diff-card:hover{border-color:rgba(79,170,125,.4);background:rgba(79,170,125,.05)}
.diff-num{
  font-family:'Cormorant Garamond',serif;
  font-size:3rem;
  font-weight:300;
  color:rgba(79,170,125,.2);
  line-height:1;
  margin-bottom:.8rem;
}
.diff-card h3{
  font-size:.82rem;
  font-weight:600;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--blanc);
  margin-bottom:.6rem;
  font-family:'DM Sans',sans-serif;
}
.diff-card p{font-size:.83rem;line-height:1.75;color:var(--blanc-att);margin:0}

/* ── ÉQUIPE ── */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.6rem;margin-top:2.5rem}
.team-card{
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r);
  padding:1.8rem;
  transition:border-color var(--t);
}
.team-card:hover{border-color:rgba(79,170,125,.35)}
.team-initials{
  width:50px;
  height:50px;
  border-radius:var(--r);
  background:var(--vert);
  color:#fff;
  font-family:'Cormorant Garamond',serif;
  font-size:1.3rem;
  font-weight:300;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:1rem;
}
.team-name{
  font-size:.95rem;
  font-weight:500;
  color:var(--blanc);
  margin-bottom:.2rem;
  font-family:'DM Sans',sans-serif;
}
.team-role{
  font-size:.67rem;
  color:var(--vert-clair);
  text-transform:uppercase;
  letter-spacing:.1em;
  margin-bottom:.8rem;
}
.team-bio{font-size:.8rem;line-height:1.75;color:rgba(255,255,255,.5);margin:0}

/* ── CTA CONTACT ── */
.cta-triple{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:2.5rem}
.cta-btn-large{
  display:block;
  padding:1.2rem 1.5rem;
  border:1px solid rgba(79,170,125,.3);
  border-radius:var(--r);
  text-align:center;
  font-size:.84rem;
  font-weight:500;
  color:var(--blanc);
  transition:all var(--t);
  background:rgba(255,255,255,.02);
}
.cta-btn-large:hover{
  border-color:var(--vert-clair);
  background:rgba(79,170,125,.08);
  color:var(--vert-clair);
}
.cta-contact-email{text-align:center;margin-top:2rem;font-size:.85rem;color:rgba(255,255,255,.4)}
.cta-contact-email a{color:var(--vert-clair)}
.cta-contact-email a:hover{text-decoration:underline}

/* ── FOOTER ── */
footer{
  background:var(--noir);
  color:rgba(255,255,255,.52);
  padding:4rem var(--pad) 2rem;
  border-top:1px solid rgba(79,170,125,.16);
}
.footer-inner{
  max-width:1120px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1.8fr .95fr .95fr .95fr .95fr;
  gap:2.2rem;
  padding-bottom:2rem;
  border-bottom:1px solid rgba(255,255,255,.06);
  align-items:start;
}
.footer-brand{
  font-family:'Cormorant Garamond',serif;
  font-size:1.2rem;
  font-weight:600;
  color:rgba(255,255,255,.88);
}
.footer-brand span{color:var(--vert-clair)}
.footer-tagline{
  font-size:.65rem;
  color:rgba(255,255,255,.4);
  margin-top:.3rem;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.footer-note{
  font-size:.78rem;
  line-height:1.75;
  color:rgba(255,255,255,.52);
  margin-top:1rem;
  max-width:34ch;
}
.footer-col-title{
  font-size:.62rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--vert-clair);
  margin-bottom:.95rem;
}
.footer-col a{
  display:block;
  font-size:.79rem;
  color:rgba(255,255,255,.55);
  margin-bottom:.5rem;
  transition:color var(--t);
  text-decoration:none;
}
.footer-col a:hover{color:var(--vert-clair)}
.footer-bottom{
  max-width:1120px;
  margin:1.5rem auto 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:.64rem;
  letter-spacing:.04em;
  flex-wrap:wrap;
  gap:.5rem;
  color:rgba(255,255,255,.32);
}

/* ── PAGE INTÉRIEURE — HERO ── */
.page-hero{
  background:var(--ardoise);
  padding:5rem var(--pad) 4rem;
  border-bottom:1px solid var(--ligne);
}
.page-hero h1{
  font-family:'Cormorant Garamond',serif;
  font-size:clamp(2.2rem,4vw,3.8rem);
  font-weight:300;
  color:var(--blanc);
  max-width:680px;
}
.page-hero p{max-width:600px;color:var(--blanc-att)}

/* ── ANIMATIONS ── */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}
.fade-in{animation:fadeUp .9s ease both}
.reveal{opacity:1;transform:none}
.reveal.visible{opacity:1;transform:none}
.reveal-d1{transition-delay:.1s}
.reveal-d2{transition-delay:.2s}
.reveal-d3{transition-delay:.3s}
.reveal-d4{transition-delay:.4s}

/* ── RESPONSIVE ── */
@media(max-width:1100px){
  .hub-grid{grid-template-columns:1fr}
  .hub-intro{max-width:620px}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1.5fr 1fr 1fr}
  .hero{padding:5rem var(--pad) 5.5rem;min-height:auto}
  .two-col,
  .three-col,
  .acteurs-grid,
  .diff-grid,
  .cta-triple{grid-template-columns:1fr;gap:1.4rem}
  .section{padding:4.5rem var(--pad)}
  .schema-chain{max-width:100%}
}

@media(max-width:960px){
  :root{--pad:1.5rem}

  nav{
    min-height:var(--nav-h);
    padding:8px 14px 8px 14px;
  }

  .nav-links,
  .lang-switch{
    display:none !important;
  }

  .nav-right{
    display:none !important;
  }

  .hamburger,
  .burger{
    display:flex !important;
    position:absolute;
    right:14px;
    top:14px;
    transform:none;
    z-index:3010;
    width:44px;
    height:44px;
    align-items:center;
    justify-content:center;
  }

  .hamburger span,
  .burger span{
    background:#ffffff !important;
    height:3px;
  }

  .nav-logo{
    max-width:calc(100% - 70px);
  }

  .mobile-menu{
    top:0;
    bottom:0;
    left:0;
    right:0;
    height:100vh;
    padding-top:calc(var(--nav-h) + 1.8rem);
  }
}

@media(max-width:640px){
  .team-grid{grid-template-columns:1fr}
  .hero h1{font-size:2.2rem}
  .hero-proof{gap:1.8rem}
  .nav-logo small{
    font-size:.48rem !important;
    letter-spacing:.06em !important;
  }
}

@media(max-width:480px){
  :root{--pad:1.1rem}
  .footer-inner{grid-template-columns:1fr;gap:1.5rem}
  .hero-actions{flex-direction:column}

  nav{
    padding-right:12px;
  }

  .nav-logo{
    padding-left:10px;
    max-width:calc(100% - 62px);
  }

  nav .nav-logo img{
    height:auto !important;
    width:100px !important;
    padding:3px 6px !important;
  }

  .hamburger,
  .burger{
    right:10px;
    width:42px;
    height:42px;
  }

  .mobile-menu a{
    font-size:1.18rem;
  }
}

/* ── AJUSTEMENTS LOGO / MOBILE ── */
.nav-logo img{
  height:auto !important;
  width:190px !important;
}

nav .nav-logo img{
  height:auto !important;
  width:190px !important;
  padding:4px 8px !important;
  border-radius:4px !important;
  background:#fff !important;
  display:block !important;
}

nav .nav-logo span,
nav .nav-logo small{
  font-size:.52rem !important;
  line-height:1.2 !important;
  margin-top:3px !important;
  width:190px !important;
  padding: 0 !important;
  text-align: center !important;
}

.mobile-lang{
  display:flex;
  gap:.6rem;
  margin-top:2rem;
  font-size:.8rem;
  letter-spacing:.1em;
  text-transform:uppercase;
}
.mobile-lang a{color:rgba(255,255,255,.6)}
.mobile-lang a:hover{color:var(--vert-clair)}
.mobile-lang a.current{color:var(--vert-clair)}
.mobile-lang span{color:rgba(255,255,255,.25)}
.burger-fallback{
  display:none;
}