/* EC2F – charte du site vitrine (indépendante du site EIS) */
:root{
  --ink:#1C2B4D; --deep:#14203A; --blue:#3E62AE; --teal:#5FAE96; --teal-d:#3F8C75;
  --paper:#EEF2F7; --white:#FFFFFF; --muted:#5B6779; --line:#D3DCE7; --on-deep:#C9D4E5;
  --f:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;
  --wide:125; --max:1180px; --g:clamp(16px,4vw,40px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--white);color:var(--ink);font:400 17px/1.6 var(--f);font-stretch:100%}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-underline-offset:3px}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--teal);outline-offset:3px}
.w{max-width:var(--max);margin:0 auto;padding:0 var(--g)}
h1,h2,h3{font-stretch:125%;line-height:1.05;letter-spacing:-.01em;margin:0}
h1{font-size:clamp(36px,5.2vw,64px);font-weight:800}
h2{font-size:clamp(28px,3.4vw,42px);font-weight:750}
h3{font-size:21px;font-weight:700;letter-spacing:0}
p{margin:0}
.lead{font-size:clamp(17px,1.5vw,19px);color:var(--muted);max-width:62ch}

/* boutons */
.btn{display:inline-flex;align-items:center;gap:8px;font:700 16px var(--f);font-stretch:112%;text-decoration:none;padding:14px 22px;border-radius:4px;border:2px solid transparent;cursor:pointer}
.btn.main{background:var(--teal);color:var(--deep)}
.btn.main:hover{background:#79C2AB}
.btn.line{border-color:currentColor;color:inherit;background:none}
.btn.line:hover{background:rgba(255,255,255,.08)}

/* en-tête */
.top{position:sticky;top:0;z-index:20;background:var(--white);border-bottom:1px solid var(--line)}
.top .w{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand img{height:44px;width:auto}
.nav{display:flex;gap:4px}
.nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:15px;padding:10px 14px;border-radius:4px}
.nav a:hover{background:var(--paper)}
.nav a.on{color:var(--blue)}
.nav a.ask{background:var(--ink);color:#fff;margin-left:8px}
.menu{display:none;background:none;border:1px solid var(--line);border-radius:4px;padding:9px 12px;font:600 15px var(--f);color:var(--ink)}
@media (max-width:860px){
  .menu{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:72px;background:#fff;flex-direction:column;padding:8px var(--g) 18px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav a.ask{margin:6px 0 0;text-align:center}
}

/* hero : schéma unifilaire */
.hero{background:var(--deep);color:#fff;overflow:hidden}
.hero .w{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;padding-top:72px;padding-bottom:64px}
.hero h1{color:#fff}
.hero .sub{display:block;color:var(--teal);font-size:.62em;font-weight:700;margin-top:14px;letter-spacing:0}
.hero .lead{color:var(--on-deep);margin-top:24px}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero .facts{display:flex;gap:32px;margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);color:var(--on-deep);font-size:15px}
.hero .facts b{display:block;color:#fff;font-stretch:125%;font-size:20px}
.diagram{width:100%;height:auto}
.diagram .wire{fill:none;stroke:var(--teal);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.diagram .bus{fill:none;stroke:#fff;stroke-width:5;stroke-linecap:round}
.diagram .sym{fill:none;stroke:#fff;stroke-width:2.5}
.diagram .node{fill:var(--teal)}
.diagram .t1{fill:#fff;font:700 19px var(--f);font-stretch:125%}
.diagram .t2{fill:var(--on-deep);font:400 14px var(--f)}
.diagram .tag{fill:rgba(255,255,255,.55);font:600 12px var(--f)}
@media (prefers-reduced-motion:no-preference){
  .diagram .draw{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:draw 1.1s ease-out forwards;animation-delay:var(--d,0s)}
  .diagram .fade{opacity:0;animation:fade .5s ease-out forwards;animation-delay:var(--d,0s)}
}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes fade{to{opacity:1}}
@media (max-width:900px){.hero .w{grid-template-columns:1fr;padding-top:48px}.hero .facts{gap:22px;flex-wrap:wrap}}

/* sections */
.sec{padding:96px 0}
.sec.paper{background:var(--paper)}
.head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:end;margin-bottom:48px}
@media (max-width:860px){.sec{padding:64px 0}.head{grid-template-columns:1fr;gap:16px;margin-bottom:32px}}

/* métiers : lignes, pas de cartes */
.trades{border-top:2px solid var(--ink)}
.trade{display:grid;grid-template-columns:64px minmax(0,1.1fr) minmax(0,1.4fr);gap:28px;padding:32px 0;border-bottom:1px solid var(--line);align-items:start}
.trade .ic{width:52px;height:52px;border-radius:50%;background:var(--paper);display:grid;place-items:center;color:var(--blue)}
.trade .ic svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.trade p{color:var(--muted);margin-top:8px}
.trade ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.trade li{padding-left:22px;position:relative}
.trade li::before{content:"";position:absolute;left:0;top:.72em;width:12px;height:2px;background:var(--teal)}
.trade.pv{grid-template-columns:64px minmax(0,1.1fr) minmax(0,.8fr) minmax(0,.6fr)}
.trade.pv img{border-radius:4px;aspect-ratio:600/330;object-fit:cover;width:100%}
@media (max-width:860px){.trade,.trade.pv{grid-template-columns:52px minmax(0,1fr);gap:16px 18px}.trade ul,.trade.pv img{grid-column:2}}

/* pour qui / engagement */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:48px}}
.who{margin:28px 0 0;padding:0;list-style:none;columns:2;column-gap:28px}
.who li{break-inside:avoid;padding:10px 0;border-bottom:1px solid var(--line);font-weight:600}
.nums{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:40px}
.nums b{display:block;font-stretch:125%;font-size:46px;line-height:1;color:var(--blue);font-weight:800}
.nums span{display:block;color:var(--muted);font-size:15px;margin-top:8px}
.steps{list-style:none;margin:28px 0 0;padding:0;position:relative}
.steps::before{content:"";position:absolute;left:19px;top:8px;bottom:8px;width:2px;background:var(--teal)}
.steps li{position:relative;padding:0 0 26px 62px}
.steps li:last-child{padding-bottom:0}
.steps .n{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:800;font-stretch:125%}
.steps h3{font-size:19px}
.steps p{color:var(--muted);margin-top:4px}

/* références */
.refs{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:20px}
.ref{border-radius:6px;overflow:hidden;background:#fff;border:1px solid var(--line);display:flex;flex-direction:column}
.ref.mcdo{grid-column:span 7;grid-row:span 2}
.ref.pop{grid-column:span 5}
.ref.sch{grid-column:span 5;background:var(--ink);color:#fff;border-color:var(--ink)}
.ref .ph{background:var(--paper)}
.ref.mcdo .ph img{width:100%;aspect-ratio:16/9;object-fit:cover}
.ref.mcdo .ph2{display:grid;grid-template-columns:1fr}
.ref .txt{padding:22px 24px 24px}
.ref .sector{display:inline-block;font-size:14px;font-weight:600;color:var(--teal-d);margin-top:6px}
.ref.sch .sector{color:var(--teal)}
.ref .txt p{color:var(--muted);margin-top:10px}
.ref.sch .txt p{color:var(--on-deep)}
.ref.pop{flex-direction:row;align-items:center}
.ref.pop img{width:132px;height:132px;object-fit:contain;margin:14px 0 14px 18px;flex:none}
.ref.sch .mark{padding:24px 24px 0;font-stretch:125%;font-weight:800;font-size:28px;color:var(--teal)}
@media (max-width:900px){.ref.mcdo,.ref.pop,.ref.sch{grid-column:1/-1;grid-row:auto}}
@media (max-width:480px){.ref.pop{flex-direction:column;align-items:flex-start}.ref.pop img{margin:18px 0 0 22px;width:110px;height:110px}}
.strip{display:grid;grid-template-columns:minmax(0,1fr);margin-top:20px;border-radius:6px;overflow:hidden}
.strip img{width:100%;aspect-ratio:21/8;object-fit:cover;object-position:60% 40%}

/* recrutement */
.join{background:var(--blue);color:#fff}
.join .w{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-top:56px;padding-bottom:56px;flex-wrap:wrap}
.join h2{color:#fff}
.join p{color:#E3EAF6;margin-top:10px}

/* contact */
.contact{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:48px;align-items:start}
.mail{display:inline-block;font-stretch:125%;font-weight:800;font-size:clamp(26px,3.6vw,46px);color:var(--ink);text-decoration-color:var(--teal);text-decoration-thickness:4px;text-underline-offset:8px;margin-top:22px;word-break:break-word}
.addr{border-left:3px solid var(--teal);padding-left:22px;display:grid;gap:22px}
.addr h3{font-size:17px}
.addr p{color:var(--muted);margin-top:4px}
@media (max-width:860px){.contact{grid-template-columns:1fr}}

/* pied de page */
.foot{background:var(--paper);padding:48px 0 28px;font-size:15px;color:var(--muted)}
.foot .row{display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap;align-items:flex-start}
.foot img{height:48px;width:auto;margin-bottom:12px}
.foot nav{display:flex;gap:18px;flex-wrap:wrap}
.foot nav a{color:var(--ink);font-weight:600;text-decoration:none}
.foot .legal{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:32px;padding-top:18px;border-top:1px solid var(--line);font-size:13px}
.foot .legal a{color:var(--muted)}

/* pages intérieures */
.band{background:var(--deep);color:#fff;padding:64px 0 56px}
.band h1{color:#fff;font-size:clamp(34px,4.6vw,56px)}
.band .lead{color:var(--on-deep);margin-top:18px}
.values{display:flex;flex-wrap:wrap;gap:10px 26px;margin:28px 0 0;padding:0;list-style:none;color:#fff;font-weight:600}
.values li::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--teal);margin-right:10px;vertical-align:middle}
.jobs{display:grid;gap:16px;margin-top:28px}
.job{border:1px solid var(--line);border-radius:6px;background:#fff}
.job summary{list-style:none;cursor:pointer;padding:24px 26px;display:grid;grid-template-columns:1fr auto;gap:8px 20px;align-items:center}
.job summary::-webkit-details-marker{display:none}
.job .meta{grid-column:1;display:flex;flex-wrap:wrap;gap:6px 18px;color:var(--muted);font-size:15px}
.job .more{grid-row:1/span 2;grid-column:2;font-weight:700;color:var(--blue)}
.job[open] .more{color:var(--muted)}
.job .body{padding:0 26px 26px;border-top:1px solid var(--line)}
.job .cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;padding-top:22px}
.job h4{margin:0 0 8px;font-size:16px;font-stretch:112%}
.job ul{margin:0;padding-left:18px;color:var(--muted)}
.job li{margin:4px 0}
.job .btn{margin-top:22px}
@media (max-width:860px){.job .cols{grid-template-columns:1fr}.job summary{grid-template-columns:1fr}.job .more{grid-row:auto;grid-column:1}}
.cand{display:grid;gap:16px;max-width:720px;margin-top:28px}
.cand .r2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:600px){.cand .r2{grid-template-columns:1fr}}
.cand label{display:grid;gap:6px;font-weight:600;font-size:15px}
.cand input,.cand select,.cand textarea{font:400 16px var(--f);padding:12px 14px;border:1px solid #B9C5D4;border-radius:4px;background:#fff;color:var(--ink);width:100%}
.cand textarea{min-height:120px;resize:vertical}
.cand .note{font-weight:400;color:var(--muted)}
.cand .hp{position:absolute;left:-9999px}
.cand .btn{justify-self:start;background:var(--ink);color:#fff}
.cand .btn:disabled{opacity:.6}
.msg{padding:12px 16px;border-radius:4px;font-weight:600}
.msg.ok{background:#E2F3EC;color:#1F6B52}
.msg.ko{background:#FBE7E7;color:#9C2F31}
.prose{max-width:72ch}
.prose h2{font-size:24px;margin:36px 0 10px}
.prose p{margin:0 0 12px;color:var(--muted)}

/* photos */
.mosaic{background:var(--white);padding:24px 0 0}
.mosaic .w{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:12px}
.mosaic figure{margin:0;border-radius:6px;overflow:hidden;background:var(--paper)}
.mosaic img{width:100%;height:100%;aspect-ratio:1;object-fit:cover}
.mosaic .m1 img{aspect-ratio:auto;height:100%}
@media (max-width:700px){.mosaic .w{grid-template-columns:1fr 1fr}.mosaic .m1{grid-column:1/-1}.mosaic .m1 img{aspect-ratio:3/2}}
.trade{grid-template-columns:150px minmax(0,1.1fr) minmax(0,1.4fr)}
.trade .thumb{width:150px;aspect-ratio:240/170;object-fit:cover;border-radius:4px}
.trade .ic{margin:0 auto;width:96px;height:96px}
.trade .ic svg{width:40px;height:40px}
@media (max-width:860px){.trade{grid-template-columns:96px minmax(0,1fr)}.trade .thumb{width:96px}.trade .ic{width:72px;height:72px;margin:0}}
.wide{margin:0 0 28px;border-radius:6px;overflow:hidden}
.wide img{width:100%;aspect-ratio:2/1;object-fit:cover}
.join{position:relative;overflow:hidden;background:var(--deep)}
.join .bg{position:absolute;inset:0}
.join .bg img{width:100%;height:100%;object-fit:cover;object-position:30% 30%}
.join .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,32,58,.94) 0%,rgba(20,32,58,.82) 50%,rgba(62,98,174,.55) 100%)}
.join .w{position:relative;padding-top:80px;padding-bottom:80px}
.ref.syn{grid-column:span 5}
.ref.syn .mark{padding:24px 24px 0;font-stretch:125%;font-weight:800;font-size:28px;color:var(--blue)}
@media (max-width:900px){.ref.syn{grid-column:1/-1}}
.ref .logo-ref{padding:26px 24px 0}
.ref .logo-ref img{width:190px;height:auto}