/* MMimages — maquette. Mise en page éditoriale noir & blanc, plein cadre photo. */
:root{
  --ink:#0e0d0d;
  --text:#333;
  --muted:#777;
  --paper:#fefefe;
  --line:#e2e2e2;
  --night:#000;
  --night-text:rgba(255,255,255,.82);
  --font:"Lato",Helvetica,Arial,sans-serif;
  --wrap:1240px;
  --gut:max(20px,4vw);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-weight:500;text-transform:uppercase;line-height:1.25;margin:0;text-wrap:balance}
p{margin:0 0 1em;color:var(--text)}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:var(--gut);padding-right:var(--gut)}
section{padding-block:110px}

/* ---------- Filigrane SPÉCIMEN ---------- */
.ph{position:relative;overflow:hidden;container-type:inline-size;background:#ddd}
.ph img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.ph::after{
  content:"SPÉCIMEN";position:absolute;left:50%;top:50%;z-index:3;
  transform:translate(-50%,-50%) rotate(-28deg);
  font:900 15cqw/1 var(--font);letter-spacing:.08em;white-space:nowrap;
  color:rgba(255,255,255,.42);
  -webkit-text-stroke:1px rgba(0,0,0,.18);
  text-shadow:0 2px 18px rgba(0,0,0,.25);
  pointer-events:none;user-select:none;
}
.ph.wm-sm::after{font-size:13cqw}
a:hover .ph img,.ph:hover img{transform:scale(1.04)}

/* ---------- En-tête ---------- */
.header{position:fixed;inset:0 0 auto;z-index:50;transition:background .4s,color .4s,box-shadow .4s;color:#fff}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:110px;transition:height .4s;max-width:none}
.logo{display:flex;align-items:center;gap:12px}
.logo img{height:54px;width:auto;transition:filter .4s,height .4s}
.logo span{font-size:10px;letter-spacing:.35em;text-transform:uppercase;line-height:1.4}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;position:relative;padding-block:6px;white-space:nowrap}
@media (max-width:1250px) and (min-width:901px){.nav a.opt{display:none}.nav{gap:24px}}
.nav a:not(.btn-nav)::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:currentColor;transition:right .35s var(--ease)}
.nav a:not(.btn-nav):hover::after,.nav a.on::after{right:0}
.btn-nav{border:1px solid currentColor;padding:10px 18px!important;transition:background .3s,color .3s}
.btn-nav:hover{background:#fff;color:var(--ink)}
.sub{position:relative}
.sub>button{all:unset;cursor:pointer;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase}
.sub>button::after{content:" ▾";font-size:9px}
.sub-menu{position:absolute;top:100%;left:-18px;min-width:210px;background:#fff;color:var(--ink);padding:14px 0;opacity:0;visibility:hidden;transform:translateY(8px);transition:.3s var(--ease);box-shadow:0 12px 40px rgba(0,0,0,.12)}
.sub:hover .sub-menu,.sub:focus-within .sub-menu{opacity:1;visibility:visible;transform:none}
.sub-menu a{display:block;padding:7px 22px}
.sub-menu a::after{display:none}
.header.solid,.header.light{background:#fff;color:var(--ink);box-shadow:0 1px 0 var(--line)}
.header.solid .wrap{height:76px}
.header.solid .logo img,.header.light .logo img{filter:invert(1);height:42px}
.header.solid .btn-nav:hover,.header.light .btn-nav:hover{background:var(--ink);color:#fff}
.burger{all:unset;display:none;cursor:pointer;width:30px;height:20px;position:relative}
.burger span,.burger::before,.burger::after{content:"";position:absolute;left:0;right:0;height:1.5px;background:currentColor;transition:.3s}
.burger::before{top:0}.burger span{top:9px}.burger::after{bottom:0}

/* ---------- Hero ---------- */
.hero{position:relative;height:100vh;min-height:560px;color:#fff;display:flex;align-items:flex-end;padding:0;background:#111}
.hero .slides{position:absolute;inset:0}
.hero .slide{position:absolute;inset:0;opacity:0;transition:opacity 1.6s ease}
.hero .slide.on{opacity:1}
.hero .slide img{animation:kb 14s linear infinite alternate}
@keyframes kb{to{transform:scale(1.08)}}
.hero::before{content:"";position:absolute;inset:0;z-index:2;background:linear-gradient(180deg,rgba(0,0,0,.45) 0,rgba(0,0,0,0) 30%,rgba(0,0,0,0) 55%,rgba(0,0,0,.55) 100%);pointer-events:none}
.hero .caption{position:relative;z-index:4;width:100%;padding-bottom:9vh}
.hero h1{font-size:clamp(34px,5.4vw,78px);letter-spacing:.01em;line-height:1.08}
.hero h1 .l{font-weight:300;display:block}
.hero .kicker{font-size:13px;letter-spacing:.3em;text-transform:uppercase;margin-bottom:22px;opacity:.9}
.hero .scroll{position:absolute;right:var(--gut);bottom:9vh;z-index:4;font-size:11px;letter-spacing:.3em;text-transform:uppercase;writing-mode:vertical-rl}
.hero.short{height:78vh}

/* ---------- Titres de section ---------- */
.eyebrow{font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:var(--muted);margin-bottom:18px;display:block}
.h2{font-size:clamp(24px,2.6vw,34px);letter-spacing:.01em}
.center{text-align:center}

/* ---------- Boutons & liens ---------- */
.btn{display:inline-block;border:2px solid var(--ink);padding:15px 34px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;transition:background .3s,color .3s;cursor:pointer;font-family:var(--font)}
.btn.dark{background:var(--ink);color:#fff}
.btn.dark:hover{background:#fff;color:var(--ink)}
.btn.ghost{background:#fff;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.btn.white{border-color:#fff;color:#fff;background:transparent}
.btn.white:hover{background:#fff;color:var(--ink)}
.more{display:inline-block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;border-bottom:1px dashed currentColor;padding-bottom:3px;margin-top:10px;background:none;border-top:0;border-left:0;border-right:0;cursor:pointer;color:inherit;font-family:var(--font)}
.more:hover{border-bottom-style:solid}

/* ---------- Services (accueil) ---------- */
.services .head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:60px;flex-wrap:wrap}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.service .ph{aspect-ratio:4/5;margin-bottom:28px}
.service h3{font-size:19px;letter-spacing:.06em;margin-bottom:14px}
.service p{font-size:15px}

/* ---------- Bandeau plein cadre ---------- */
.band{position:relative;padding:0;color:#fff;min-height:82vh;display:flex;align-items:center}
.band .ph{position:absolute;inset:0;background:#111}
.band .ph::before{content:"";position:absolute;inset:0;background:rgba(0,0,0,.42);z-index:2}
.band .ph::after{font-size:13cqw}
.band .inner{position:relative;z-index:4;padding-block:120px}
.band h2{font-size:clamp(28px,4vw,56px);max-width:16ch;line-height:1.12}
.band h2 .l{font-weight:300;display:block}
.band p{color:rgba(255,255,255,.88);max-width:520px;margin-top:26px;font-size:17px}

/* ---------- Split (texte + image) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,7vw,110px);align-items:center}
.split.rev .split-media{order:2}
.split-media .ph{aspect-ratio:4/5}
.split-media.wide .ph{aspect-ratio:3/2}
.split h1,.split h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:28px}
.split-text{min-width:0}
.collapse{max-height:0;overflow:hidden;transition:max-height .6s var(--ease)}
.collapse.open{max-height:900px}

/* ---------- Deux cartes « Pourquoi » ---------- */
.why h2{margin-bottom:50px;max-width:24ch}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px}
.why-grid .ph{aspect-ratio:3/2;margin-bottom:28px}
.why-grid p{font-size:15px}

/* ---------- Carrousel ---------- */
.carousel-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:40px;gap:20px}
.arrows{display:flex;gap:10px}
.arrows button{all:unset;cursor:pointer;width:46px;height:46px;border:1px solid var(--line);display:grid;place-items:center;font-size:18px;transition:.3s}
.arrows button:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.track{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 3*24px)/4);gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:4px}
.track::-webkit-scrollbar{display:none}
.card{scroll-snap-align:start;min-width:0}
.card .ph{aspect-ratio:3/4;margin-bottom:16px}
.card .ph .see{position:absolute;inset:auto 0 0 0;z-index:4;padding:18px;color:#fff;font-size:11px;letter-spacing:.2em;text-transform:uppercase;background:linear-gradient(0deg,rgba(0,0,0,.55),transparent);opacity:0;transform:translateY(10px);transition:.4s var(--ease)}
.card:hover .see{opacity:1;transform:none}
.card h3{font-size:13px;letter-spacing:.1em}
.card small{display:block;color:var(--muted);font-size:12px;letter-spacing:.06em;margin-top:4px}
.carousel-foot{text-align:center;margin-top:50px}

/* ---------- Section sombre / accordéon ---------- */
.dark{background:var(--night);color:#fff}
.dark p{color:var(--night-text)}
.dark .eyebrow{color:rgba(255,255,255,.55)}
.domains{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,7vw,110px);align-items:start}
.domains h2{font-size:clamp(24px,2.6vw,34px);position:sticky;top:120px}
.domains .ph{aspect-ratio:16/10;margin-top:40px}
details.acc{border-bottom:1px solid rgba(255,255,255,.28)}
details.acc summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;padding:22px 0;font-size:14px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}
details.acc summary::-webkit-details-marker{display:none}
details.acc summary::after{content:"+";font-weight:300;font-size:22px;transition:transform .3s}
details.acc[open] summary::after{transform:rotate(45deg)}
details.acc .body{padding:0 0 24px;font-size:15px}

/* ---------- Équipement / mosaïque ---------- */
.mosaic{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px}
.mosaic .ph{aspect-ratio:1}

/* ---------- Méthode ---------- */
.method{display:grid;grid-template-columns:5fr 7fr;gap:clamp(40px,6vw,90px);align-items:start}
.method .ph{aspect-ratio:3/4}
.method h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:46px}
.steps{display:grid;grid-template-columns:1fr 1fr;gap:44px 40px}
.steps h3{font-size:13.5px;letter-spacing:.08em;padding-bottom:12px;margin-bottom:16px;border-bottom:1px solid var(--ink)}
.steps h3 b{font-weight:300;margin-right:8px;color:var(--muted)}
.steps p{font-size:14px;line-height:1.7}

/* ---------- Galerie ---------- */
.gallery{columns:4 260px;column-gap:14px}
.gallery a{display:block;margin-bottom:14px;break-inside:avoid}
.gallery .ph img{height:auto}
.filters{display:flex;flex-wrap:wrap;gap:8px 26px;justify-content:center;margin:0 0 46px}
.filters a{font-size:12px;letter-spacing:.14em;text-transform:uppercase;padding-bottom:4px;border-bottom:1px solid transparent}
.filters a:hover,.filters a.on{border-color:var(--ink)}

/* ---------- FAQ ---------- */
.faq .title{text-align:center;margin-bottom:56px}
.faq .title p{font-size:18px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink);margin-top:6px;font-weight:300}
.faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;padding:20px 4px;font-size:15.5px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;line-height:1;transition:transform .3s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 4px 22px;font-size:15px;max-width:72ch}

/* ---------- CTA ---------- */
.cta{text-align:center;border-top:1px solid var(--line)}
.cta h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px}
.cta p{margin-bottom:34px}
.cta .btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---------- Contact ---------- */
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form .full{grid-column:1/-1}
.form label{display:block;font-size:11px;letter-spacing:.16em;text-transform:uppercase;margin-bottom:6px;color:var(--muted)}
.form input,.form textarea,.form select{width:100%;border:0;border-bottom:1px solid #bbb;padding:10px 0;font:inherit;background:transparent;color:var(--ink);outline:none;transition:border-color .3s}
.form input:focus,.form textarea:focus,.form select:focus{border-color:var(--ink)}
.form textarea{min-height:130px;resize:vertical}
.form .note{grid-column:1/-1;font-size:14px;color:var(--ink);padding:14px 16px;border:1px solid var(--ink)}
.infos{display:grid;gap:26px}
.infos h3{font-size:13px;letter-spacing:.14em;margin-bottom:4px}

/* ---------- Pied de page ---------- */
.footer{border-top:1px solid var(--line);padding-block:80px 30px;font-size:14px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:40px}
.footer h2{font-size:14px;letter-spacing:.12em;margin-bottom:18px}
.footer ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.footer a:hover{text-decoration:underline}
.footer .brand img{height:56px;filter:invert(1);margin-bottom:18px}
.footer .brand p{font-size:13.5px;max-width:30ch}
.footer .legal{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:60px;padding-top:24px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.ribbon{position:fixed;left:0;bottom:0;z-index:60;background:var(--ink);color:#fff;font-size:11px;letter-spacing:.18em;text-transform:uppercase;padding:8px 14px}

/* ---------- Lightbox ---------- */
.lb{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.94);display:flex;align-items:center;justify-content:center;padding:40px}
.lb .ph{background:none;max-width:min(1100px,92vw);max-height:86vh}
.lb .ph img{max-height:86vh;width:auto;object-fit:contain}
.lb button{all:unset;cursor:pointer;position:absolute;color:#fff;font-size:30px;padding:16px}
.lb .x{top:10px;right:16px}.lb .pv{left:10px;top:50%;transform:translateY(-50%)}.lb .nx{right:10px;top:50%;transform:translateY(-50%)}

/* ---------- Apparition ---------- */
.rv{transition:opacity 1s var(--ease),transform 1s var(--ease)}
.rv.pre{opacity:.001;transform:translateY(30px)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv.pre{opacity:1;transform:none}}
:focus-visible{outline:2px solid #6aa0ff;outline-offset:3px}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .track{grid-auto-columns:calc((100% - 2*24px)/3)}
  .footer .cols{grid-template-columns:1fr 1fr 1fr}
  .footer .brand{grid-column:1/-1}
}
@media (max-width:900px){
  section{padding-block:80px}
  .burger{display:block}
  .nav{position:fixed;inset:0;background:#fff;color:var(--ink);flex-direction:column;justify-content:center;gap:20px;transform:translateX(100%);transition:transform .5s var(--ease)}
  .nav.open{transform:none}
  .nav a{font-size:16px}
  .sub{text-align:center}
  .sub>button{display:none}
  .sub-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding:0;display:grid;gap:12px;background:none}
  .sub-menu a{padding:0}
  .header.menu-open{color:var(--ink)}
  .header.menu-open .logo img{filter:invert(1)}
  .burger{z-index:2}
  .services-grid,.why-grid,.split,.domains,.method{grid-template-columns:1fr}
  .split.rev .split-media{order:0}
  .domains h2{position:static}
  .track{grid-auto-columns:calc((100% - 24px)/2)}
  .form{grid-template-columns:1fr}
}
@media (max-width:560px){
  .steps{grid-template-columns:1fr}
  .track{grid-auto-columns:82%}
  .footer .cols{grid-template-columns:1fr 1fr}
  .hero .scroll{display:none}
  .header .wrap{height:84px}
  .logo span{display:none}
}