:root{
  --nuit:#0E1114;
  --acier:#161A1F;
  --acier-clair:#1E242B;
  --trait:#2B333C;
  --craie:#EDEFF2;
  --craie-douce:#98A2AD;
  --or:#3F8AD1;
  --or-clair:#8CBEEA;
  --fort:#E3A63A;
  --faible:#63D2AC;
  --clim:#67C4E9;
  --display:'Bricolage Grotesque',system-ui,sans-serif;
  --corps:'IBM Plex Sans',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --pad:clamp(20px,5vw,72px);
  --fond:url("images/fond.jpg");
}
*{box-sizing:border-box}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background-image:var(--fond);
  background-size:cover;background-position:center;
  opacity:.34;
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(180deg,rgba(14,17,20,.32),rgba(14,17,20,.68));
}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--nuit);color:var(--craie);
  font-family:var(--corps);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3{font-family:var(--display);font-weight:800;line-height:1.05;letter-spacing:-.02em;margin:0}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--or);outline-offset:3px;border-radius:2px}

.enveloppe{max-width:1240px;margin:0 auto;padding:0 var(--pad)}
.etiquette{
  font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--or);display:inline-flex;align-items:center;gap:10px;
}
.etiquette::before{content:"";width:26px;height:1px;background:var(--or);opacity:.6}

/* ---------- barre haute ---------- */
.barre{
  position:sticky;top:0;z-index:60;background:rgba(14,17,20,.82);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--trait);
}
.barre-in{display:flex;align-items:center;gap:24px;height:76px}
.marque{display:flex;align-items:center;gap:12px;margin-right:auto}
.marque-nom{font-family:var(--display);font-weight:800;font-size:21px;letter-spacing:-.03em}
.marque-nom span{color:var(--or)}
.marque-ville{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;color:var(--craie-douce);
  border-left:1px solid var(--trait);padding-left:12px;margin-left:2px;
}
.nav{display:flex;gap:26px;font-size:14.5px;color:var(--craie-douce)}
.nav a{position:relative;padding:4px 0;transition:color .2s;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--or);transition:width .25s}
.nav a:hover{color:var(--craie)}
.nav a:hover::after{width:100%}
.tel-haut{
  font-family:var(--mono);font-size:14px;color:var(--craie);
  border:1px solid var(--trait);padding:9px 16px;border-radius:999px;transition:.25s;white-space:nowrap;
}
.tel-haut:hover{border-color:var(--or);color:var(--or-clair)}
.wa-haut{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  font-size:14px;font-weight:600;padding:9px 16px;border-radius:999px;
  color:#0E1114;background:#25D366;transition:.25s;
}
.wa-haut svg{width:17px;height:17px;fill:currentColor;flex:none}
.wa-haut:hover{background:#3BE07B;transform:translateY(-1px)}
.burger{display:none;background:none;border:1px solid var(--trait);border-radius:8px;color:var(--craie);padding:8px 10px;cursor:pointer}

/* ---------- hero ---------- */
.hero{position:relative;padding:clamp(48px,7vw,92px) 0 clamp(56px,7vw,96px);overflow:hidden}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(100deg,rgba(14,17,20,.88) 14%,rgba(14,17,20,.34) 60%,rgba(14,17,20,.78)),var(--fond);
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:-20% -10% auto -30%;height:120%;
  background:radial-gradient(60% 55% at 25% 25%,rgba(63,138,209,.16),transparent 70%),
             radial-gradient(45% 45% at 85% 15%,rgba(103,196,233,.08),transparent 70%);
  pointer-events:none;
}
.hero-in{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero h1{font-size:clamp(38px,5.6vw,70px);margin:20px 0 0}
.hero h1 em{font-style:normal;color:var(--or);position:relative}
.hero-txt{margin-top:22px;color:var(--craie-douce);font-size:clamp(16px,1.5vw,18.5px);max-width:36em}
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:15px 26px;border-radius:999px;
  font-weight:600;font-size:15.5px;transition:.25s;border:1px solid transparent;
}
.btn-or{background:var(--or);color:#fff;box-shadow:0 10px 30px -12px rgba(63,138,209,.75)}
.btn-or:hover{background:var(--or-clair);transform:translateY(-2px)}
.btn-vide{border-color:var(--trait);color:var(--craie)}
.btn-vide:hover{border-color:var(--or);color:var(--or-clair);transform:translateY(-2px)}
.reperes{
  display:flex;flex-wrap:wrap;gap:0;margin-top:44px;border-top:1px solid var(--trait);padding-top:24px;
}
.repere{padding-right:34px;margin-right:34px;border-right:1px solid var(--trait)}
.repere:last-child{border-right:0;margin-right:0;padding-right:0}
.repere b{display:block;font-family:var(--display);font-size:28px;font-weight:800;color:var(--craie)}
.repere small{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--craie-douce)}

.schema{width:100%;height:auto;filter:drop-shadow(0 30px 60px rgba(0,0,0,.55))}
.schema-bloc{position:relative;line-height:0}
.schema-img{
  width:100%;height:auto;border-radius:18px;border:1px solid var(--trait);
  box-shadow:0 30px 70px -20px rgba(0,0,0,.75);display:block;
}
.fluide{
  position:absolute;inset:0;width:100%;height:100%;pointer-events:none;
  overflow:visible;
}
.fluide path{
  fill:none;stroke-width:9;stroke-linecap:round;stroke-linejoin:round;
  stroke-dasharray:17 83;opacity:0;
  animation-duration:4.2s;animation-timing-function:linear;animation-iteration-count:infinite;
}
.f-a,.f-b{stroke:#BFDCF5;filter:drop-shadow(0 0 7px #4FA8EE)}
.f-fort{stroke:#FFD59A;filter:drop-shadow(0 0 7px #F59A21)}
.f-faible{stroke:#B9F5CE;filter:drop-shadow(0 0 7px #3ED07A)}
.f-clim{stroke:#BFE6FA;filter:drop-shadow(0 0 7px #35B6F0)}

.f-a{animation-name:coule-a}
.f-b{animation-name:coule-b}
.f-fort,.f-faible,.f-clim{animation-name:coule-c}

@keyframes coule-a{
  0%{stroke-dashoffset:100;opacity:0}
  3%{opacity:1}
  20%{stroke-dashoffset:0;opacity:1}
  25%{stroke-dashoffset:0;opacity:0}
  100%{stroke-dashoffset:0;opacity:0}
}
@keyframes coule-b{
  0%,18%{stroke-dashoffset:100;opacity:0}
  21%{opacity:1}
  38%{stroke-dashoffset:0;opacity:1}
  43%{stroke-dashoffset:0;opacity:0}
  100%{stroke-dashoffset:0;opacity:0}
}
@keyframes coule-c{
  0%,36%{stroke-dashoffset:100;opacity:0}
  39%{opacity:1}
  74%{stroke-dashoffset:0;opacity:1}
  80%{stroke-dashoffset:0;opacity:0}
  100%{stroke-dashoffset:0;opacity:0}
}
.flux{stroke-dasharray:7 13;animation:flux 2.4s linear infinite}
.jauge{fill:#2B333C}
.j1{animation:jauge1 3.2s ease-in-out infinite}
.j2{animation:jauge2 3.2s ease-in-out infinite}
.j3{animation:jauge3 3.2s ease-in-out infinite}
@keyframes jauge1{0%,4%{fill:#2B333C}10%,100%{fill:#3F8AD1}}
@keyframes jauge2{0%,32%{fill:#2B333C}38%,100%{fill:#5FA3E0}}
@keyframes jauge3{0%,62%{fill:#2B333C}68%,100%{fill:#8CBEEA}}
@keyframes flux{to{stroke-dashoffset:-40}}

/* ---------- bandeau métiers ---------- */
.bandeau{border-top:1px solid var(--trait);border-bottom:1px solid var(--trait);background:rgba(22,26,31,.82);backdrop-filter:blur(6px)}
.bandeau-in{display:grid;grid-template-columns:repeat(3,1fr)}
.metier{padding:26px 30px;border-right:1px solid var(--trait);display:flex;gap:16px;align-items:flex-start}
.metier:last-child{border-right:0}
.puce{width:9px;height:9px;border-radius:50%;margin-top:9px;flex:none}
.metier h3{font-size:17px;font-weight:600;font-family:var(--corps);letter-spacing:0}
.metier p{font-size:14px;color:var(--craie-douce);margin-top:4px}

/* ---------- sections ---------- */
section{padding:clamp(64px,8vw,110px) 0}
.tete{max-width:60ch;margin-bottom:clamp(36px,4vw,56px)}
.tete h2{font-size:clamp(30px,4vw,46px);margin-top:16px}
.tete p{color:var(--craie-douce);margin-top:16px}

/* prestations */
.cartes{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.carte{
  background:rgba(22,26,31,.86);border:1px solid var(--trait);border-radius:18px;overflow:hidden;
  display:flex;flex-direction:column;transition:.3s;
}
.carte:hover{transform:translateY(-6px);border-color:#3B444E}
.visuel{position:relative;aspect-ratio:16/10;background:var(--acier-clair);overflow:hidden}
.visuel svg,.visuel img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.visuel img{z-index:2}
.visuel::after{
  content:"";position:absolute;inset:0;z-index:3;
  background:linear-gradient(to top,rgba(14,17,20,.75),transparent 55%);
}
.carte-corps{padding:26px 26px 30px;display:flex;flex-direction:column;flex:1}
.carte h3{font-size:22px}
.carte>.carte-corps>p{color:var(--craie-douce);font-size:15px;margin-top:10px}
.liste{list-style:none;padding:0;margin:20px 0 0;font-size:14.5px}
.liste li{padding:9px 0 9px 22px;border-top:1px solid var(--trait);position:relative;color:var(--craie-douce)}
.liste li::before{content:"";position:absolute;left:0;top:17px;width:9px;height:1px;background:currentColor;opacity:.7}
.ruban{height:3px;width:100%}

/* galerie realisations */
.galerie{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tuile{
  position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--trait);
  aspect-ratio:4/3;background:var(--acier-clair);transition:.3s;
}
.tuile:hover{border-color:#3B444E;transform:translateY(-4px)}
.tuile img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.tuile:hover img{transform:scale(1.06)}
.tuile figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:30px 14px 12px;
  background:linear-gradient(to top,rgba(14,17,20,.96) 55%,transparent);
  overflow-wrap:anywhere;
}
.tuile b{display:block;font-family:var(--corps);font-weight:600;font-size:14px;line-height:1.28}
.tuile small{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--or-clair);display:block;margin-top:4px;overflow-wrap:anywhere;
}

/* sous-services courants faibles */
.sousserv{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ss{background:rgba(22,26,31,.86);border:1px solid var(--trait);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:.3s}
.ss:hover{transform:translateY(-5px);border-color:#3B444E}
.ss-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--acier-clair)}
.ss-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.ss:hover .ss-img img{transform:scale(1.06)}
.ss-img::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(14,17,20,.88),rgba(14,17,20,.05) 60%)}
.tag{
  position:absolute;left:14px;top:14px;z-index:3;font-family:var(--mono);font-size:10px;
  letter-spacing:.12em;text-transform:uppercase;background:rgba(14,17,20,.78);
  border:1px solid var(--trait);color:var(--faible);padding:5px 10px;border-radius:999px;
}
.ss-corps{padding:22px 22px 26px;flex:1;display:flex;flex-direction:column}
.ss h3{font-size:19px}
.ss>.ss-corps>p{font-size:14px;color:var(--craie-douce);margin-top:8px}
.ss ul{list-style:none;padding:0;margin:16px 0 0;font-size:13.5px;color:var(--craie-douce)}
.ss ul li{padding:7px 0 7px 18px;border-top:1px solid var(--trait);position:relative}
.ss ul li::before{content:"";position:absolute;left:0;top:14px;width:8px;height:1px;background:var(--faible);opacity:.85}

/* méthode */
.etapes{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--trait)}
.etape{padding:30px 26px 34px;border-right:1px solid var(--trait);position:relative}
.etape:last-child{border-right:0}
.etape::before{
  content:"";position:absolute;top:-1px;left:0;width:0;height:1px;background:var(--or);transition:width .6s ease;
}
.etape.vu::before{width:100%}
.etape span{font-family:var(--mono);font-size:12px;color:var(--or);letter-spacing:.1em}
.etape h3{font-size:19px;margin-top:14px;font-family:var(--corps);font-weight:600;letter-spacing:0}
.etape p{font-size:14.5px;color:var(--craie-douce);margin-top:8px}

/* secteurs */
.secteurs{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.secteur{
  border:1px solid var(--trait);border-radius:14px;padding:26px 22px;background:rgba(22,26,31,.82);
  transition:.3s;
}
.secteur:hover{background:var(--acier-clair);border-color:#3B444E}
.secteur svg{width:34px;height:34px;stroke:var(--or);fill:none;stroke-width:1.4}
.secteur h3{font-size:17px;margin-top:18px;font-family:var(--corps);font-weight:600;letter-spacing:0}
.secteur p{font-size:14px;color:var(--craie-douce);margin-top:8px}

/* engagements */
.engage{background:rgba(22,26,31,.74);border-top:1px solid var(--trait);border-bottom:1px solid var(--trait)}
.grille2{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,5vw,70px);align-items:start}
.points{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--trait);border:1px solid var(--trait);border-radius:14px;overflow:hidden}
.point{background:rgba(22,26,31,.88);padding:26px 24px}
.point b{display:block;font-family:var(--display);font-size:18px;font-weight:600}
.point p{font-size:14.5px;color:var(--craie-douce);margin-top:8px}

/* bandeau partenaires defilant */
.partenaires{
  border-top:1px solid var(--trait);border-bottom:1px solid var(--trait);
  background:rgba(22,26,31,.86);padding:30px 0 34px;overflow:hidden;
}
.partenaires .titre{
  text-align:center;font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--craie-douce);margin-bottom:20px;
}
.defile + .titre{margin-top:30px}
.defile{
  position:relative;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.piste{display:flex;align-items:center;width:max-content;animation:defile 32s linear infinite}
.defile:hover .piste{animation-play-state:paused}
@keyframes defile{to{transform:translateX(-50%)}}
.logo-item{
  display:flex;align-items:center;justify-content:center;flex:none;
  background:#fff;border-radius:12px;height:74px;padding:12px 26px;margin:0 12px;
  opacity:.78;transition:opacity .3s,transform .3s;
}
.logo-item:hover{opacity:1;transform:translateY(-3px)}
.logo-item img{height:100%;width:auto;max-width:190px;object-fit:contain;display:block}
.logo-item span{
  font-family:var(--display);font-weight:700;font-size:22px;color:#1B1F24;
  white-space:nowrap;letter-spacing:-.01em;
}
.piste.inverse{animation-direction:reverse;animation-duration:38s}
.logo-item img{max-width:210px}

/* contact */
.contact-grille{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px)}
.coord{list-style:none;padding:0;margin:30px 0 0}
.coord li{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--trait);align-items:flex-start}
.coord svg{width:20px;height:20px;stroke:var(--or);fill:none;stroke-width:1.5;flex:none;margin-top:3px}
.coord small{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--craie-douce);margin-bottom:4px}
.coord a,.coord span{font-size:16.5px}
.coord a:hover{color:var(--or-clair)}
form{scroll-margin-top:100px;background:rgba(22,26,31,.88);border:1px solid var(--trait);border-radius:18px;padding:clamp(24px,3vw,34px)}
.champ{margin-bottom:16px}
label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--craie-douce);margin-bottom:8px}
input,select,textarea{
  width:100%;background:var(--nuit);border:1px solid var(--trait);border-radius:10px;
  padding:13px 15px;color:var(--craie);font-family:var(--corps);font-size:15.5px;transition:border-color .2s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--or)}
textarea{resize:vertical;min-height:110px}
form .btn{width:100%;justify-content:center;margin-top:6px;cursor:pointer;font-family:var(--corps)}
.note{font-size:12.5px;color:var(--craie-douce);margin-top:14px;text-align:center;transition:color .3s}
.note.ok{color:var(--faible)}
.note.ko{color:#E86A4A}

/* pied */
footer{border-top:1px solid var(--trait);padding:44px 0 38px;font-size:14px;color:var(--craie-douce)}
.pied-in{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
.pied-in a:hover{color:var(--or-clair)}

/* apparition */
.monte{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.monte.vu{opacity:1;transform:none}

@media(max-width:980px){
  .hero-in,.grille2,.contact-grille{grid-template-columns:1fr}
  .hero-visuel{order:-1;max-width:440px}
  .cartes,.etapes,.secteurs,.sousserv,.galerie{grid-template-columns:1fr 1fr}
  .bandeau-in{grid-template-columns:1fr}
  .metier{border-right:0;border-bottom:1px solid var(--trait)}
  .etape{border-right:0;border-bottom:1px solid var(--trait)}
  .nav{display:none}
  .burger{display:block}
  .nav.ouvert{
    display:flex;position:absolute;top:76px;left:0;right:0;flex-direction:column;gap:0;
    background:var(--acier);border-bottom:1px solid var(--trait);padding:8px var(--pad) 18px;
  }
  .nav.ouvert a{padding:14px 0;border-bottom:1px solid var(--trait)}
}
@media(max-width:640px){
  .cartes,.secteurs,.points,.etapes,.sousserv{grid-template-columns:1fr}
  .galerie{grid-template-columns:1fr;gap:14px}
  .tuile{aspect-ratio:16/10}
  .tuile figcaption{padding:34px 16px 14px}
  .tuile b{font-size:15px}
  .tuile small{font-size:10px}
  .repere{padding-right:18px;margin-right:18px}
  .repere b{font-size:24px}
  .logo-item{height:60px;padding:10px 18px;margin:0 8px}
  .tel-haut{display:none}
  .marque-ville{display:none}
  .wa-haut{padding:9px 11px}
  .wa-haut span{display:none}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .monte{opacity:1;transform:none}
}

/* navigation active */
.nav a.actif{color:var(--craie)}
.nav a.actif::after{width:100%}
.nav{gap:16px;font-size:13.5px;flex-wrap:nowrap}
@media(max-width:1180px){.nav{gap:13px;font-size:12.5px}.tel-haut{display:none}}

/* en-tete de sous-page */
.chapeau{position:relative;padding:clamp(44px,6vw,78px) 0 clamp(30px,4vw,44px);overflow:hidden}
.chapeau::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(100deg,rgba(14,17,20,.92) 20%,rgba(14,17,20,.5) 70%,rgba(14,17,20,.85)),var(--fond);
  background-size:cover;background-position:center;
}
.chapeau h1{font-size:clamp(31px,4.6vw,54px);margin:18px 0 0;max-width:22ch}
.chapeau p{margin-top:18px;color:var(--craie-douce);font-size:clamp(15.5px,1.4vw,18px);max-width:56ch}
.fil{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#5C6670;margin-bottom:14px}
.fil a:hover{color:var(--or-clair)}

/* contenu de sous-page */
.duo{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(30px,4vw,60px);align-items:center}
.duo img{width:100%;border-radius:16px;border:1px solid var(--trait);display:block}
.duo + .duo{margin-top:clamp(48px,6vw,80px)}
.duo.inverse .visu{order:-1}
.duo h2{font-size:clamp(24px,3vw,34px)}
.duo p{color:var(--craie-douce);margin-top:14px}
.bloc-cta{
  border:1px solid var(--trait);border-radius:18px;background:rgba(22,26,31,.88);
  padding:clamp(28px,4vw,46px);text-align:center;
}
.bloc-cta h2{font-size:clamp(24px,3vw,34px)}
.bloc-cta p{color:var(--craie-douce);margin-top:14px;max-width:52ch;margin-left:auto;margin-right:auto}
.bloc-cta .actions{justify-content:center}
.apercu{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.apercu a{
  display:block;border:1px solid var(--trait);border-radius:16px;overflow:hidden;
  background:rgba(22,26,31,.88);transition:.3s;
}
.apercu a:hover{transform:translateY(-5px);border-color:#3B444E}
.apercu img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.apercu .txt{padding:22px 22px 26px}
.apercu h3{font-size:19px}
.apercu p{font-size:14px;color:var(--craie-douce);margin-top:8px}
.apercu span{
  display:inline-block;margin-top:14px;font-family:var(--mono);font-size:10.5px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--or-clair);
}
@media(max-width:980px){
  .duo,.apercu{grid-template-columns:1fr}
  .duo.inverse .visu{order:0}
}
@media(max-width:640px){
  .chapeau h1{max-width:none}
}