@font-face{font-family:"League Spartan";font-weight:500;font-display:swap;src:url(../fonts/league-spartan-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"League Spartan";font-weight:700;font-display:swap;src:url(../fonts/league-spartan-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"League Spartan";font-weight:800;font-display:swap;src:url(../fonts/league-spartan-latin-800-normal.woff2) format("woff2")}
@font-face{font-family:"Nunito Sans";font-weight:200 1000;font-display:swap;src:url(../fonts/nunito-sans-latin-wght-normal.woff2) format("woff2")}
html{scroll-behavior:smooth}
body{margin:0;-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
.legaltext{max-width:760px}
.legaltext h2{font-size:1.4rem;margin:32px 0 10px}
.legaltext p,.legaltext li{color:var(--muted)}
.legaltext .todo{background:#fff3c4;color:#5a4500;padding:0 4px;border-radius:3px}

/* Layout : site en 5 pages (Accueil, Pôle QSE, Références, Pôle 3D, Contact) affichées par le menu ; vert et bleu du logo partout. */
:root{
  --bg:#f4f8f9; --surface:#ffffff; --ink:#10242f; --muted:#506570; --line:#d6e2e6;
  --green:#8cc63f; --green-ink:#4a7d18; --green-soft:#eef6e2;
  --blue:#3bb4f2; --blue-ink:#1471ad; --blue-soft:#e3f2fb;
  --band:#e8eff1;
  --qse-band:#8cc63f; --qse-on:#10242f; --qse-on-muted:#25451a;
  --ddd-band:#1b8bd3; --ddd-on:#ffffff; --ddd-on-muted:#e6f5fd;
  --grad:linear-gradient(90deg,#8cc63f,#3bb4f2);
  --foot:#10242f; --foot-on:#cfe0e6; --scrim:rgba(8,20,28,.72);
  --f-display:"League Spartan","Trebuchet MS",Arial,sans-serif;
  --f-body:"Nunito Sans","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0c1820; --surface:#13232d; --ink:#e6f0f3; --muted:#9db2bb; --line:#243944;
  --green:#9bd24f; --green-ink:#a9dc62; --green-soft:#16261a;
  --blue:#52c0f5; --blue-ink:#6ccaf7; --blue-soft:#102838; --band:#0f1e27;
  --qse-band:#3d6a16; --qse-on:#f2faea; --qse-on-muted:#d3ebb6;
  --ddd-band:#0f5e90; --ddd-on:#ffffff; --ddd-on-muted:#cfeaf9;
  --foot:#08131a; --foot-on:#b9cdd5; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0c1820; --surface:#13232d; --ink:#e6f0f3; --muted:#9db2bb; --line:#243944;
  --green:#9bd24f; --green-ink:#a9dc62; --green-soft:#16261a;
  --blue:#52c0f5; --blue-ink:#6ccaf7; --blue-soft:#102838; --band:#0f1e27;
  --qse-band:#3d6a16; --qse-on:#f2faea; --qse-on-muted:#d3ebb6;
  --ddd-band:#0f5e90; --ddd-on:#ffffff; --ddd-on-muted:#cfeaf9;
  --foot:#08131a; --foot-on:#b9cdd5; color-scheme:dark}

*{box-sizing:border-box}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.6}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--surface)}
.wrap{max-width:1160px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--f-display);text-wrap:balance;margin:0;line-height:1.05;letter-spacing:-.01em}
p{margin:0}
a{color:inherit}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.eyebrow{font-family:var(--f-display);font-weight:700;font-size:.8rem;letter-spacing:.16em;text-transform:uppercase}
.qse-c{color:var(--green-ink)} .ddd-c{color:var(--blue-ink)}

/* En-tête */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--surface)}
header::after{content:"";display:block;height:5px;background:var(--grad)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:10px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none}
.logo img{width:46px;height:46px}
.logo b{display:block;font-family:var(--f-display);font-weight:800;font-size:1.35rem;letter-spacing:.18em;line-height:1}
.logo small{display:block;font-size:.72rem;color:var(--muted);margin-top:3px}
nav.main{display:flex;gap:4px;align-items:center}
nav.main a{text-decoration:none;font-weight:700;font-size:.95rem;padding:8px 13px;border-radius:999px;transition:background .2s}
nav.main a:hover{background:var(--green-soft);color:var(--green-ink)}
nav.main a[aria-current="page"]{background:var(--ink);color:var(--bg)}
nav.main a.cta{background:var(--grad);color:#10242f}
.burger{display:none;border:0;background:var(--band);color:var(--ink);border-radius:8px;padding:9px 12px;font-weight:700}

/* Pages */

@keyframes fade{from{opacity:.4;transform:translateY(6px)}to{opacity:1;transform:none}}
.pagehead{padding-block:48px 36px}
.pagehead h1{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:800;margin-top:8px}
.pagehead p.lead{margin-top:14px;color:var(--muted);max-width:62ch;font-size:1.1rem}
.pagehead.qse{background:var(--qse-band);color:var(--qse-on)}
.pagehead.qse .eyebrow,.pagehead.qse p.lead{color:var(--qse-on-muted)}
.pagehead.ddd{background:var(--ddd-band);color:var(--ddd-on)}
.pagehead.ddd .eyebrow,.pagehead.ddd p.lead{color:var(--ddd-on-muted)}
.pagehead.mix{background:linear-gradient(135deg,var(--green-soft),var(--blue-soft))}
section.block{padding-block:56px}
.block h2{font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:800;margin-bottom:24px}

/* Accueil */
.hero{padding-block:52px 44px;background:radial-gradient(ellipse 60% 70% at 0% 0%,var(--green-soft),transparent 70%),radial-gradient(ellipse 60% 70% at 100% 100%,var(--blue-soft),transparent 70%)}
.hero-top{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:32px;align-items:end}
.hero h1{font-size:clamp(2.3rem,5.4vw,4.2rem);font-weight:800}
.hero h1 .g{color:var(--green-ink)} .hero h1 .b{color:var(--blue-ink)}
.hero .lead{color:var(--muted);font-size:1.12rem;max-width:52ch}
.doors{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px}
.door{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:300px;border-radius:14px;overflow:hidden;text-decoration:none;color:#fff;isolation:isolate}
.door img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .5s}
.door::after{content:"";position:absolute;inset:0;z-index:-1}
.door.qse::after{background:linear-gradient(180deg,rgba(74,125,24,.1) 15%,rgba(60,105,18,.94))}
.door.ddd{background:linear-gradient(135deg,#1471ad,#3bb4f2)}
.door.ddd::after{background:radial-gradient(circle at 85% 15%,rgba(255,255,255,.18) 0 18%,transparent 19%),radial-gradient(circle at 70% 45%,rgba(255,255,255,.08) 0 30%,transparent 31%)}
.door:hover img{transform:scale(1.04)}
.door-body{padding:26px;display:flex;flex-direction:column;gap:8px}
.door .code{font-family:var(--f-display);font-weight:800;font-size:3.4rem;line-height:.9}
.door.qse .code{color:#c8ee95} .door.ddd .code{color:#c8ecfd}
.door h2{font-size:1.5rem;font-weight:700}
.door p{opacity:.95;max-width:44ch}
.door .go{font-weight:700;margin-top:6px}
.figures{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-radius:14px;overflow:hidden;background:var(--grad)}
.figure{padding:24px 22px;color:#10242f;border-right:1px solid rgba(16,36,47,.15)}
.figure:last-child{border-right:0}
.figure b{display:block;font-family:var(--f-display);font-size:2.2rem;font-weight:800;line-height:1;font-variant-numeric:tabular-nums}
.figure span{font-weight:600;font-size:.95rem}
.values{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.value{display:flex;gap:14px;align-items:center;padding:18px 20px;border-radius:10px;background:var(--green-soft)}
.value:nth-child(2){background:var(--blue-soft)}
.value svg{flex:none;width:36px;height:36px;stroke:var(--green-ink);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.value:nth-child(2) svg{stroke:var(--blue-ink)}
.value b{font-family:var(--f-display);font-size:1.2rem;display:block}
.value span{color:var(--muted);font-size:.92rem}
.split-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-block;text-decoration:none;font-weight:700;padding:12px 20px;border-radius:8px;border:0}
.btn.g{background:var(--green);color:#10242f}
.btn.b{background:var(--blue-ink);color:var(--bg)}
.btn.grad{background:var(--grad);color:#10242f}
.btn.ghost{background:transparent;border:2px solid currentColor}

/* Missions QSE */
.missions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.mission{background:var(--surface);border:1px solid var(--line);border-radius:12px;border-top:5px solid var(--green);overflow:hidden}
.mission:nth-child(even){border-top-color:var(--blue)}
.mission button{all:unset;box-sizing:border-box;width:100%;display:flex;gap:16px;align-items:center;padding:22px;cursor:pointer}
.mission button:focus-visible{outline:3px solid var(--blue);outline-offset:-3px}
.mission .mi{flex:none;width:52px;height:52px;border-radius:50%;background:var(--green-soft);display:grid;place-items:center}
.mission:nth-child(even) .mi{background:var(--blue-soft)}
.mission .mi svg{width:26px;height:26px;fill:none;stroke:var(--green-ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.mission:nth-child(even) .mi svg{stroke:var(--blue-ink)}
.mission h3{font-size:1.2rem;flex:1}
.mission .chev{font-size:1.4rem;transition:transform .25s;color:var(--muted)}
.mission[data-open] .chev{transform:rotate(45deg)}
.mission .more{padding:0 22px 22px 90px;color:var(--muted)}
.mission .more ul{margin:10px 0 0;padding-left:18px;color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.chip{padding:7px 15px;border-radius:999px;background:var(--surface);font-weight:700;font-size:.93rem;border:1px solid var(--line)}

/* Références */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.filters button{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:8px 15px;border-radius:999px;font-weight:700;font-size:.92rem}
.filters button[aria-pressed="true"]{background:var(--grad);border-color:transparent;color:#10242f}
.count{color:var(--muted);font-size:.92rem;margin:-12px 0 18px}
.projects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.pcard{all:unset;box-sizing:border-box;cursor:pointer;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;min-width:0}
.pcard:hover{transform:translateY(-3px);box-shadow:0 10px 24px -14px rgba(16,36,47,.45)}
.pcard:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.pcard .ph{position:relative;aspect-ratio:4/3;max-width:100%}
.pcard .ph img{width:100%;height:100%;object-fit:cover}
.pcard .st{position:absolute;top:12px;left:12px;font-size:.76rem;font-weight:800;letter-spacing:.04em;padding:4px 10px;border-radius:999px;background:var(--blue-ink);color:#fff}
.pcard .st.done{background:var(--green);color:#10242f}
.pcard .bd{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.pcard h3{font-size:1.18rem}
.pcard p{color:var(--muted);font-size:.94rem}
.pcard .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:6px}
.tag{font-size:.78rem;font-weight:700;padding:3px 9px;border-radius:5px;background:var(--green-soft);color:var(--green-ink)}
.tag:nth-child(even){background:var(--blue-soft);color:var(--blue-ink)}
.pcard .open{font-weight:700;color:var(--blue-ink);font-size:.92rem}
.clients ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:12px 30px}
.clients li{font-family:var(--f-display);font-weight:700;font-size:1.2rem}
.clients li:nth-child(odd){color:var(--green-ink)} .clients li:nth-child(even){color:var(--blue-ink)}

/* Fenêtre projet */
.modal{position:fixed;inset:0;z-index:50;background:var(--scrim);display:grid;place-items:center;padding:max(16px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) max(16px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px))}
.sheet{background:var(--surface);border-radius:14px;max-width:960px;width:100%;max-height:100%;overflow:auto;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}
.sheet::before{content:"";grid-column:1/-1;height:6px;background:var(--grad)}
.gal{position:relative;background:#0b161d;min-height:320px}
.gal img{width:100%;height:100%;max-height:560px;object-fit:contain}
.gal .nav{position:absolute;top:50%;transform:translateY(-50%);border:0;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.9);color:#10242f;font-size:1.3rem;font-weight:800}
.gal .prev{left:12px} .gal .next{right:12px}
.gal .dots{position:absolute;bottom:12px;left:0;right:0;display:flex;justify-content:center;gap:6px}
.gal .dots span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.45)}
.gal .dots span.on{background:#fff}
.info{padding:26px;display:flex;flex-direction:column;gap:12px;min-width:0}
.info h3{font-size:1.5rem}
.info p{color:var(--muted)}
.info dl{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:4px 0 0;font-size:.95rem}
.info dt{font-weight:700}
.info dd{margin:0;color:var(--muted);font-variant-numeric:tabular-nums}
.close{align-self:flex-end;border:0;background:var(--band);color:var(--ink);border-radius:8px;padding:8px 14px;font-weight:700}

/* Pôle 3D */
.slogan{font-family:var(--f-display);font-weight:800;font-size:clamp(1.3rem,2.6vw,1.8rem);line-height:1.2;max-width:34ch;margin-top:20px;color:var(--ddd-on)}
.slogan::before{content:"« ";color:var(--green)} .slogan::after{content:" »";color:var(--green)}
.svc-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.svc-tab{border:2px solid var(--line);background:var(--surface);color:var(--ink);border-radius:12px;padding:18px 12px;display:flex;flex-direction:column;align-items:center;gap:10px;font-family:var(--f-display);font-weight:800;font-size:1rem;letter-spacing:.04em;text-transform:uppercase}
.svc-tab[aria-selected="true"]{border-color:var(--blue);background:var(--blue-soft);color:var(--blue-ink)}
.ico{width:68px;height:68px;border-radius:50%;background:linear-gradient(135deg,#1471ad,#3bb4f2);display:grid;place-items:center}
.ico svg{width:36px;height:36px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.svc-panel{margin-top:16px;background:var(--surface);border:1px solid var(--line);border-radius:14px;border-top:5px solid var(--green);padding:28px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:28px}
.svc-panel h3{font-size:1.7rem;margin-bottom:8px}
.svc-panel .tagline{font-weight:700;color:var(--blue-ink);font-size:1.1rem;margin-bottom:10px}
.svc-panel p{color:var(--muted)}
.svc-panel ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.svc-panel li{display:flex;gap:10px;align-items:flex-start}
.svc-panel li::before{content:"";flex:none;width:10px;height:10px;margin-top:8px;border-radius:50%;background:var(--grad)}
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;counter-reset:s}
.steps li{padding:22px 20px 0 0;border-top:4px solid var(--blue);min-width:0}
.steps li:nth-child(odd){border-top-color:var(--green)}
.steps .n{font-family:var(--f-display);font-weight:800;color:var(--blue-ink);font-size:.85rem;letter-spacing:.08em;text-transform:uppercase}
.steps h3{font-size:1.15rem;margin:6px 0}
.steps p{color:var(--muted);font-size:.95rem}

/* Contact */
.contact-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px}
.cinfo{display:flex;flex-direction:column;gap:14px}
.cline{display:flex;align-items:center;gap:14px;background:var(--surface);border-radius:12px;padding:12px 16px;border:1px solid var(--line)}
.cline .pi{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#8cc63f,#3bb4f2);display:grid;place-items:center;flex:none}
.cline .pi svg{width:20px;height:20px;fill:#10242f}
.cline div{min-width:0}
.cline b{font-family:var(--f-display);font-size:1.35rem;letter-spacing:.02em;font-variant-numeric:tabular-nums;user-select:all;overflow-wrap:anywhere;display:block}
.cline small{display:block;color:var(--muted);font-size:.8rem}
.cline button{margin-left:auto;padding:7px 12px;font-size:.85rem;background:var(--band);color:var(--ink);border:0;border-radius:7px;font-weight:700}
form{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:28px;display:grid;gap:16px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:flex;flex-direction:column;gap:6px;font-weight:700;font-size:.92rem}
input,select,textarea{font:inherit;font-weight:400;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:7px;padding:10px 12px;width:100%}
textarea{min-height:120px;resize:vertical}
fieldset{border:0;padding:0;margin:0;display:flex;gap:10px;flex-wrap:wrap}
legend{font-weight:700;font-size:.92rem;margin-bottom:6px}
.choice{flex:1 1 200px;position:relative}
.choice input{position:absolute;opacity:0;width:1px;height:1px}
.choice span{display:block;padding:12px;border:1px solid var(--line);border-radius:7px;font-weight:700;cursor:pointer;text-align:center}
.choice input:checked + span.q{border-color:var(--green);background:var(--green-soft);color:var(--green-ink)}
.choice input:checked + span.d{border-color:var(--blue);background:var(--blue-soft);color:var(--blue-ink)}
.choice input:focus-visible + span{outline:3px solid var(--blue);outline-offset:2px}
form button[type="submit"]{border:0;border-radius:8px;padding:13px 20px;font-weight:800;background:var(--grad);color:#10242f}
.ok{padding:12px 14px;border-radius:7px;background:var(--blue-soft)}

footer{background:var(--foot);color:var(--foot-on);font-size:.9rem}
footer::before{content:"";display:block;height:5px;background:var(--grad)}
footer .wrap{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(2,minmax(0,1fr));gap:28px;padding-block:36px}
footer h4{font-family:var(--f-display);color:#fff;margin:0 0 10px;font-size:1rem;letter-spacing:.06em;text-transform:uppercase}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
footer a{text-decoration:none} footer a:hover{color:#fff;text-decoration:underline}
footer .logo b{color:#fff} footer .logo small{color:var(--foot-on)}
footer .legal{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.12);padding-top:16px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}

@media (max-width:960px){
  .projects{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-top,.contact-grid,.svc-panel{grid-template-columns:1fr}
  .figures{grid-template-columns:repeat(2,minmax(0,1fr))}
  .figure:nth-child(2){border-right:0}
  .figure:nth-child(-n+2){border-bottom:1px solid rgba(16,36,47,.15)}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:20px}
  .sheet{grid-template-columns:1fr}
  .gal{min-height:240px}
  .gal img{max-height:360px}
}
@media (max-width:820px){
  .burger{display:block}
  nav.main{display:none;position:absolute;left:0;right:0;top:100%;background:var(--surface);flex-direction:column;align-items:stretch;padding:10px max(16px,env(safe-area-inset-right,0px)) 16px max(16px,env(safe-area-inset-left,0px));box-shadow:0 12px 20px -12px rgba(0,0,0,.3)}
  nav.main.open{display:flex}
  nav.main a{padding:12px 14px;border-radius:8px}
  header .wrap{position:relative}
}
@media (max-width:640px){
  .doors,.missions,.row,.values,.projects,.svc-tabs{grid-template-columns:1fr}
  .svc-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:1fr}
  .mission .more{padding-left:22px}
  .logo small{display:none}
  footer .wrap{grid-template-columns:1fr}
}