:root{
  --navy:#001b22; --navy-2:#06303a; --teal:#0098af; --teal-dark:#00758a; --sun:#f9b02a; --sun-dark:#e29a12;
  --bg:#ffffff; --soft:#f2f7f8; --line:#d8e4e7; --text:#12282e; --muted:#4a6168;
  --radius:14px; --shadow:0 10px 30px rgba(0,27,34,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;font-family:"Montserrat",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
[hidden]{display:none!important}
a{color:var(--teal-dark)}
h1,h2,h3{line-height:1.15;margin:0;color:var(--navy);letter-spacing:-.01em}
h2{font-size:clamp(1.7rem,3.2vw,2.5rem);font-weight:800}
h3{font-size:1.25rem;font-weight:700}
p{margin:0 0 1em}
.wrap{width:min(1160px,92%);margin-inline:auto}
.eyebrow{display:inline-flex;align-items:center;gap:.6em;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--teal-dark);margin-bottom:.9em}
.eyebrow::before{content:"";width:28px;height:3px;background:var(--sun);border-radius:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55em;padding:.95em 1.5em;border-radius:999px;font-weight:700;font-size:.95rem;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:inherit;transition:transform .15s,background .15s,box-shadow .15s}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--sun);outline-offset:3px}
.btn-sun{background:var(--sun);color:var(--navy)}
.btn-sun:hover{background:var(--sun-dark);transform:translateY(-1px);box-shadow:0 8px 18px rgba(249,176,42,.35)}
.btn-ghost{border-color:rgba(255,255,255,.65);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-2)}
.btn-line{border-color:var(--navy);color:var(--navy);background:transparent}
.btn-line:hover{background:var(--navy);color:#fff}

/* Header */
header.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:1rem}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none}
.brand img{height:54px;width:auto}
nav.main{display:flex;align-items:center;gap:1.6rem}
nav.main a{font-size:.88rem;font-weight:600;color:var(--navy);text-decoration:none}
nav.main a:hover{color:var(--teal-dark)}
nav.main a.tel{font-weight:800;color:var(--teal-dark);white-space:nowrap}
.top .btn{padding:.65em 1.2em;font-size:.85rem}
.menu-btn{display:none;background:none;border:0;padding:.5rem;cursor:pointer}
.menu-btn span{display:block;width:24px;height:3px;background:var(--navy);margin:5px 0;border-radius:2px}
@media(max-width:860px){
  .menu-btn{display:block}
  nav.main{position:absolute;left:0;right:0;top:68px;background:#fff;flex-direction:column;align-items:flex-start;padding:1rem 4%;gap:1rem;border-bottom:1px solid var(--line);display:none}
  nav.main.open{display:flex}
  .top .btn.hide-sm{display:none}
}

/* Hero */
.hero{position:relative;color:#fff;background:var(--navy);isolation:isolate}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(0,27,34,.92) 0%,rgba(0,27,34,.78) 45%,rgba(0,27,34,.25) 100%)}
.hero .wrap{padding:clamp(4rem,10vw,8rem) 0 clamp(5rem,9vw,7rem)}
.hero h1{color:#fff;font-size:clamp(2rem,5.2vw,3.6rem);font-weight:800;max-width:17ch}
.hero h1 em{font-style:normal;color:var(--sun)}
.hero p.lead{font-size:clamp(1.02rem,1.6vw,1.2rem);max-width:56ch;margin:1.3rem 0 2rem;color:#e3f0f2}
.hero .actions{display:flex;flex-wrap:wrap;gap:.8rem}
.badge-row{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:2.2rem}
.badge{font-size:.8rem;font-weight:600;padding:.45em .95em;border:1px solid rgba(255,255,255,.35);border-radius:999px;background:rgba(255,255,255,.08)}
.wave{position:absolute;left:0;right:0;bottom:-1px;height:40px;background:var(--bg);clip-path:ellipse(60% 100% at 50% 100%)}

/* Strip */
.strip{background:var(--bg);padding:2.4rem 0 .5rem}
.strip ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.2rem}
.strip li{display:flex;gap:.9rem;align-items:flex-start}
.ico{flex:none;width:44px;height:44px;border-radius:12px;background:var(--soft);display:grid;place-items:center;color:var(--teal-dark)}
.ico svg{width:24px;height:24px}
.strip strong{display:block;font-size:.95rem;color:var(--navy)}
.strip span.s{font-size:.85rem;color:var(--muted);line-height:1.4;display:block}

section{padding:clamp(3.5rem,7vw,6rem) 0}
.head{max-width:62ch;margin-bottom:2.6rem}
.head p{color:var(--muted);font-size:1.05rem;margin-top:1rem}

/* Métiers */
.metier{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:center;margin-bottom:clamp(3rem,6vw,5rem)}
.metier:last-child{margin-bottom:0}
.metier.rev .photos{order:2}
.photos{display:grid;gap:.8rem;grid-template-columns:1fr 1fr}
.photos figure{margin:0;position:relative;border-radius:var(--radius);overflow:hidden;background:var(--soft);box-shadow:var(--shadow)}
.photos figure:first-child{grid-column:1/-1}
.photos img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.photos figure:not(:first-child) img{aspect-ratio:4/3}
.photos figcaption{position:absolute;left:.7rem;bottom:.7rem;background:rgba(0,27,34,.82);color:#fff;font-size:.74rem;font-weight:600;padding:.3em .7em;border-radius:6px}
.num{font-size:.8rem;font-weight:800;color:var(--sun-dark);letter-spacing:.14em}
.metier h3{font-size:clamp(1.5rem,2.6vw,2rem);margin:.3rem 0 .8rem}
.metier .intro{color:var(--muted)}
.ticks{list-style:none;margin:1.1rem 0 1.5rem;padding:0;display:grid;gap:.55rem}
.ticks li{position:relative;padding-left:1.9rem;font-weight:500}
.ticks li::before{content:"";position:absolute;left:0;top:.35em;width:1.05rem;height:1.05rem;border-radius:50%;background:var(--teal) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/70% no-repeat}
.soft{background:var(--soft)}
@media(max-width:860px){.metier{grid-template-columns:1fr}.metier.rev .photos{order:0}}


/* Référence */
.ref{display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(1.5rem,3vw,2.5rem);align-items:center}
.ref figure,.ref-row figure{margin:0;position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#fff}
.ref .main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.ref figcaption,.ref-row figcaption{position:absolute;left:.7rem;bottom:.7rem;background:rgba(0,27,34,.82);color:#fff;font-size:.74rem;font-weight:600;padding:.3em .7em;border-radius:6px}
.stats{list-style:none;margin:0 0 1.4rem;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.stats li{background:#fff;border:1px solid var(--line);border-left:4px solid var(--sun);border-radius:10px;padding:.9rem 1rem}
.stats b{display:block;font-size:1.6rem;font-weight:800;color:var(--navy);line-height:1.1}
.stats span{font-size:.85rem;color:var(--muted)}
.gv{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;margin-top:1.6rem;padding:1.6rem 1.8rem;background:var(--navy);color:#dbe9ec;border-radius:var(--radius)}
.gv h3{color:#fff;margin:.5rem 0 .4rem}.gv p{margin:0 0 .4rem;max-width:62ch}.gv .when{color:var(--sun);font-weight:700;font-size:.92rem}
.gv .tag{display:inline-block;background:var(--sun);color:var(--navy);font-weight:800;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;padding:.3em .8em;border-radius:999px}
.tl.tl4{grid-template-columns:repeat(4,1fr)}
.tl-title{margin:2rem 0 1rem}
.tl{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}
.tl li{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#fff}
.tl img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.tl span{position:absolute;left:.7rem;bottom:.7rem;background:rgba(0,27,34,.85);color:#fff;font-size:.78rem;font-weight:600;padding:.3em .7em;border-radius:6px}
.tl b{color:var(--sun);margin-right:.3em}
.vids{display:grid;grid-template-columns:1fr;gap:.8rem;margin-top:.8rem;align-items:stretch}
.vids figure{margin:0;position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#000}
.vids video{width:100%;height:100%;max-height:520px;object-fit:contain;display:block}
.vids figcaption{position:absolute;left:.7rem;top:.7rem;background:rgba(0,27,34,.85);color:#fff;font-size:.74rem;font-weight:600;padding:.3em .7em;border-radius:6px;pointer-events:none}
@media(max-width:860px){.tl,.tl.tl4{grid-template-columns:1fr 1fr}.vids{grid-template-columns:1fr}.vids .portrait video{max-height:480px}}
.ref-row{display:grid;grid-template-columns:repeat(4,1fr);gap:.8rem;margin-top:1rem}
.ref-row img{width:100%;aspect-ratio:4/3;object-fit:cover}
@media(max-width:860px){.ref{grid-template-columns:1fr}.ref-row{grid-template-columns:1fr 1fr}}

/* Réalisations */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:190px;gap:.8rem}
.gallery button{padding:0;border:0;background:var(--soft);border-radius:12px;overflow:hidden;cursor:zoom-in;position:relative}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.gallery button:hover img{transform:scale(1.05)}
.gallery .wide{grid-column:span 2}
.gallery .tall{grid-row:span 2}
@media(max-width:860px){.gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}}
dialog.lb{border:0;padding:0;background:transparent;max-width:96vw;max-height:94vh;overflow:visible}
dialog.lb::backdrop{background:rgba(0,10,14,.88)}
dialog.lb img{max-width:96vw;max-height:86vh;border-radius:10px;margin:auto}
dialog.lb .cap{color:#fff;text-align:center;font-size:.9rem;margin-top:.6rem}
dialog.lb button{position:absolute;top:-14px;right:-6px;width:40px;height:40px;border-radius:50%;border:0;background:var(--sun);color:var(--navy);font-size:1.4rem;font-weight:800;cursor:pointer}

/* Process + zone */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.2rem;counter-reset:s}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;counter-increment:s}
.step::before{content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--navy);color:var(--sun);font-weight:800;margin-bottom:1rem}
.step h3{font-size:1.05rem;margin-bottom:.4rem}
.step p{margin:0;color:var(--muted);font-size:.93rem}
.zone{background:var(--navy);color:#dbe9ec;position:relative;overflow:hidden}
.zone h2{color:#fff}
.zone .wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:3rem;align-items:center}
.zone p{color:#c3d6da}
.chips{display:flex;flex-wrap:wrap;gap:.6rem;margin:1.2rem 0}
.chip{padding:.5em 1.05em;border-radius:999px;font-weight:700;font-size:.9rem;background:var(--sun);color:var(--navy)}
.chip.alt{background:transparent;border:1px solid rgba(255,255,255,.35);color:#fff;font-weight:600}
.zone img.aer{border-radius:var(--radius);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.zone small{display:block;margin-top:.7rem;color:#9bb5ba}
@media(max-width:860px){.zone .wrap{grid-template-columns:1fr}}

/* Contact */
.contact{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:start}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.4rem,3vw,2.2rem);box-shadow:var(--shadow)}
.coords{list-style:none;margin:1.4rem 0;padding:0;display:grid;gap:1rem}
.coords li{display:flex;gap:.9rem;align-items:flex-start}
.coords b{display:block;font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--teal-dark)}
.coords a{font-weight:700;color:var(--navy)}
.en{margin-top:1.6rem;padding:1rem 1.2rem;border-left:4px solid var(--sun);background:var(--soft);border-radius:0 10px 10px 0;font-size:.92rem;color:var(--muted)}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
label{display:block;font-weight:600;font-size:.85rem;margin:0 0 .35rem;color:var(--navy)}
.field{margin-bottom:1rem}
input,select,textarea{width:100%;font:inherit;font-size:.95rem;padding:.8em .9em;border:1.5px solid var(--line);border-radius:10px;background:#fff;color:var(--text)}
input:focus,select:focus,textarea:focus{border-color:var(--teal)}
textarea{min-height:120px;resize:vertical}
.form-note{font-size:.82rem;color:var(--muted);margin:.8rem 0 0}
#fallback{display:none;margin-top:1rem;padding:1rem;border-radius:10px;background:var(--soft);font-size:.9rem}
#fallback pre{white-space:pre-wrap;font:inherit;margin:.6rem 0;background:#fff;border:1px solid var(--line);border-radius:8px;padding:.8rem}
@media(max-width:860px){.contact{grid-template-columns:1fr}form .row{grid-template-columns:1fr}}

/* Footer */
footer{background:var(--navy);color:#b9ced2;padding:3rem 0 5.5rem;font-size:.88rem}
footer .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:2rem}
footer img{height:84px;width:auto;margin-bottom:.8rem}
footer h4{color:#fff;margin:0 0 .7rem;font-size:.85rem;letter-spacing:.1em;text-transform:uppercase}
footer a{color:#fff}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.4rem}
.legal{margin-top:2rem;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.14)}
.legal button{background:none;border:0;color:#fff;text-decoration:underline;cursor:pointer;font:inherit;padding:0}
#mentions{display:none;margin-top:1rem;line-height:1.7}
#mentions.open{display:block}
@media(max-width:860px){footer .cols{grid-template-columns:1fr}}

/* Barre d'appel mobile */
.callbar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;gap:.5rem;padding:.6rem 4%;background:rgba(255,255,255,.97);border-top:1px solid var(--line)}
.callbar .btn{flex:1;padding:.8em 1em}
@media(max-width:860px){.callbar{display:flex}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ---- v2 : multi-pages ---- */
nav.main a[aria-current="page"]{color:var(--teal-dark);box-shadow:0 3px 0 var(--sun)}
.dd{position:relative}
.dd>button{background:none;border:0;font:inherit;font-size:.88rem;font-weight:600;color:var(--navy);cursor:pointer;padding:0;display:inline-flex;align-items:center;gap:.35em}
.dd>button::after{content:"";width:.5em;height:.5em;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.dd>button[aria-current="true"]{box-shadow:0 3px 0 var(--sun)}
.dd .sub{display:none;position:absolute;left:-1rem;top:calc(100% + 14px);min-width:290px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:.5rem;z-index:70}
.dd .sub::before{content:"";position:absolute;left:0;right:0;top:-16px;height:16px}
.dd .sub a{display:block;padding:.65rem .9rem;border-radius:8px;font-size:.88rem}
.dd .sub a:hover{background:var(--soft)}
.dd:hover .sub,.dd.open .sub,.dd:focus-within .sub{display:block}
@media(max-width:860px){
  .dd{width:100%}
  .dd .sub{display:block;position:static;border:0;box-shadow:none;padding:.2rem 0 0 .8rem;min-width:0}
  .dd .sub::before{display:none}
  .dd>button::after{display:none}
  .dd .sub a{padding:.45rem 0}
}
.hero.sm .wrap{padding:clamp(3rem,7vw,5.5rem) 0 clamp(4rem,8vw,6rem)}
.hero.sm h1{max-width:24ch;font-size:clamp(1.8rem,4.2vw,3rem)}
.hero.sm p.lead{margin:1.1rem 0 1.6rem}
.crumbs{font-size:.82rem;margin:0 0 1.2rem;color:#c3d6da}
.crumbs a{color:#fff}
.crumbs span[aria-hidden]{margin:0 .4em;opacity:.6}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.mcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);text-decoration:none;color:inherit;transition:transform .2s}
.mcard:hover{transform:translateY(-4px)}
.mcard img{width:100%;aspect-ratio:16/10;object-fit:cover}
.mcard .b{padding:1.4rem 1.5rem 1.6rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.mcard h3{font-size:1.2rem}
.mcard p{color:var(--muted);font-size:.95rem;margin:0}
.mcard .more{margin-top:auto;padding-top:.6rem;font-weight:700;color:var(--teal-dark);font-size:.92rem}
.mcard .more::after{content:" →"}
@media(max-width:860px){.cards3{grid-template-columns:1fr}}
.cta{background:var(--navy);color:#dbe9ec;text-align:center}
.cta h2{color:#fff;max-width:26ch;margin:0 auto 1rem}
.cta p{max-width:60ch;margin:0 auto 1.6rem;color:#c3d6da}
.cta .actions{display:flex;flex-wrap:wrap;gap:.8rem;justify-content:center}
.split{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:start}
.split .photos{grid-template-columns:1fr 1fr}
@media(max-width:860px){.split{grid-template-columns:1fr}}
.faq{max-width:860px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 1.3rem;margin-bottom:.7rem}
.faq summary{cursor:pointer;font-weight:700;color:var(--navy);padding:1.05rem 0;list-style:none;display:flex;justify-content:space-between;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--teal-dark)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);margin:0 0 1.1rem}
.links-row{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.4rem}
.note{font-size:.9rem;color:var(--muted)}
select{text-overflow:ellipsis}
@media(max-width:480px){select,input,textarea{font-size:.9rem}select{padding-right:.4em}}
.brand img{height:56px}
footer .brand-f img{height:92px}
footer .cols{grid-template-columns:1.3fr 1fr 1fr 1fr}
@media(max-width:860px){footer .cols{grid-template-columns:1fr}}
.skip{position:absolute;left:-9999px;top:0;background:var(--sun);color:var(--navy);padding:.7rem 1rem;z-index:100;font-weight:700}
.skip:focus{left:0}
@media(max-width:860px){.hero::before{background:linear-gradient(180deg,rgba(0,27,34,.88),rgba(0,27,34,.72))}}
.vids{display:block;max-width:900px;margin:1.4rem auto 0}
.vids figure{aspect-ratio:16/9}
.vids video{width:100%;height:100%;max-height:none;object-fit:cover;display:block;aspect-ratio:16/9}
.zone img.aer{width:100%;aspect-ratio:16/10;object-fit:cover;align-self:center}
.mosaic{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:210px;gap:.8rem}
.mosaic a{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:block;background:#fff}
.mosaic img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.mosaic a:hover img{transform:scale(1.05)}
.mosaic .big{grid-column:span 2;grid-row:span 2}
@media(max-width:860px){.mosaic{grid-template-columns:1fr 1fr;grid-auto-rows:150px}.mosaic .big{grid-row:span 2}.cards3[style]{grid-template-columns:1fr!important}}
.about{display:grid;grid-template-columns:320px 1fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:center}
.about img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow);border:4px solid #fff;outline:3px solid var(--sun)}
.about p{color:var(--muted)}
.about .sign{color:var(--navy);margin-top:1.2rem}
@media(max-width:860px){.about{grid-template-columns:1fr}.about img{max-width:260px}}
.about img{height:auto}
.about h2{margin-bottom:1rem}
.btn-wa{background:#25d366;color:#04200f}
.btn-wa:hover{background:#1fb858}
nav.main a.lang{font-size:.78rem;font-weight:800;border:1.5px solid var(--navy);border-radius:6px;padding:.2em .5em;color:var(--navy)}
.study{margin:1rem 0 0;padding:.9rem 1.1rem;border-left:4px solid var(--sun);background:var(--soft);border-radius:0 10px 10px 0;font-size:.93rem;color:var(--muted)}
.mcard .ticks{margin:.6rem 0 .4rem;font-size:.92rem}
.callbar .btn{font-size:.88rem;padding:.8em .6em}
@media(max-width:860px){.hide-m{display:none!important}}