/* Thème clair par défaut ; thème « bleu nuit » via [data-theme=dark] */
:root{--bg:#f5f7fb;--bg2:#eaeff8;--panel:#ffffff;--panel2:#f3f6fc;--line:#d6deee;--txt:#0f1a30;--dim:#55627f;--soft:#33405e;--or:#e85a0c;--or2:#f2791f;--red:#d62839;--cy:#0a7fa8;--ok:#13894a;--nav:rgba(255,255,255,.82);--navtxt:#26324d;--foot:#e6ecf7;--shadow:0 18px 50px rgba(20,40,90,.14);--ov:245,247,251;--r:14px;--w:1180px;--hero-txt:#0f1a30;--ort:#b8420a;--cyt:#07688a;--btn1:#d9520a;--btn2:#bf4306;--btntxt:#fff;--chip:#e85a0c18;--todo-bg:#fff1cc;--todo-fg:#7a5200}
[data-theme=dark]{--bg:#0a1330;--bg2:#0e1a40;--panel:#13224f;--panel2:#102046;--line:#23366e;--txt:#eaf0ff;--dim:#a4b4da;--soft:#c3cfec;--or:#ff7a2a;--or2:#ffa04a;--red:#ff5566;--cy:#4fd8ff;--ok:#6dff9a;--nav:rgba(10,19,48,.8);--navtxt:#d3def8;--foot:#070e24;--shadow:0 18px 50px rgba(0,0,0,.45);--ov:10,19,48;--hero-txt:#ffffff;--ort:#ff9a5a;--cyt:#4fd8ff;--btn1:#ffa04a;--btn2:#ff7a2a;--btntxt:#1a0a00;--chip:#ff7a2a22;--todo-bg:#ffb02024;--todo-fg:#ffd58a}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--txt);font:16px/1.65 "Segoe UI",system-ui,-apple-system,Helvetica,Arial,sans-serif;overflow-x:hidden;transition:background .3s,color .3s}
img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}a,button,select,summary,[role=button]{cursor:pointer}.i{width:1.15em;height:1.15em;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vertical-align:-.2em;flex:none}
:focus-visible{outline:2px solid var(--cy);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--or);color:#fff;padding:8px 14px;z-index:200}.skip:focus{left:8px}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
/* en-tête */
header.nav{position:fixed;inset:0 0 auto 0;z-index:100;height:72px;background:var(--nav);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
header.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:100%}
.logo img{height:40px;width:auto}.logo .l-dark{display:none}[data-theme=dark] .logo .l-light,[data-theme=dark] .lg .l-light{display:none}[data-theme=dark] .logo .l-dark,[data-theme=dark] .lg .l-dark{display:block}.lg .l-dark{display:none}
nav.menu{display:flex;gap:6px;align-items:center}
nav.menu a,nav.menu button.th{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 14px;font-size:14px;letter-spacing:.05em;color:var(--navtxt);border-radius:8px;transition:.2s;background:none;border:0;cursor:pointer;font-family:inherit}
nav.menu a:hover,nav.menu a.on,nav.menu button.th:hover{color:var(--txt);background:var(--chip)}
nav.menu a.cta{background:linear-gradient(135deg,var(--btn1),var(--btn2));color:var(--btntxt);font-weight:700;margin-left:6px}
nav.menu a.cta:hover{filter:brightness(1.08)}
nav.menu a.lang{font-size:12px;letter-spacing:.14em;border:1px solid var(--line);margin-left:6px}
nav.menu button.th{border:1px solid var(--line);font-size:16px;line-height:1;padding:8px 11px;margin-left:6px}
.th .sun{display:none}[data-theme=dark] .th .sun{display:inline}[data-theme=dark] .th .moon{display:none}.burger{display:none;background:none;border:1px solid var(--line);color:var(--txt);width:44px;height:44px;border-radius:10px;font-size:20px;cursor:pointer}
/* boutons */
.btn{display:inline-flex;align-items:center;gap:10px;min-height:48px;padding:14px 26px;border-radius:10px;font-weight:700;letter-spacing:.05em;font-size:15px;transition:.25s;border:1px solid transparent;cursor:pointer}
.btn.p{background:linear-gradient(135deg,var(--btn1),var(--btn2));color:var(--btntxt);box-shadow:0 10px 30px rgba(232,90,12,.3)}.btn.p:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(232,90,12,.45)}
.btn.g{border-color:var(--line);color:var(--txt);background:var(--panel)}.btn.g:hover{transform:translateY(-2px);border-color:var(--or)}
/* hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:120px 0 80px;isolation:isolate;color:var(--hero-txt)}
.hero .bg{position:absolute;inset:0;z-index:-2;background-size:cover;background-position:center}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(var(--ov),.96) 0%,rgba(var(--ov),.78) 42%,rgba(var(--ov),.08) 100%),linear-gradient(0deg,var(--bg) 0%,transparent 30%)}
.eyebrow{font-size:12px;letter-spacing:.38em;color:var(--ort);font-weight:700;margin-bottom:18px;display:flex;align-items:center;gap:14px;text-transform:uppercase}
.eyebrow::before{content:"";width:40px;height:2px;background:var(--or)}
h1.big{font-size:clamp(40px,7vw,92px);line-height:1;font-weight:800;letter-spacing:.02em}
h1.big span{display:block;font-weight:300;letter-spacing:.2em;font-size:.38em;margin-bottom:14px;color:var(--soft)}
h1.big em{font-style:normal;color:var(--red)}
.lead{font-size:clamp(17px,1.6vw,21px);color:var(--soft);max-width:640px;margin:26px 0 34px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero .stats{display:flex;gap:40px;margin-top:56px;flex-wrap:wrap}
.hero .stats div b{display:block;font-size:34px;font-weight:700}.hero .stats div span{font-size:12px;letter-spacing:.24em;color:var(--dim)}
/* sections */
section{padding:110px 0;position:relative}
section.alt{background:var(--bg2)}
.sec-h{max-width:720px;margin-bottom:56px}.sec-h h2{font-size:clamp(30px,4vw,48px);line-height:1.1;font-weight:800;letter-spacing:.01em}
.sec-h p{color:var(--dim);margin-top:16px;font-size:18px}
.grid{display:grid;gap:22px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:28px;transition:.3s;position:relative;overflow:hidden;box-shadow:0 2px 0 rgba(0,0,0,.02)}
.card:hover{transform:translateY(-4px);border-color:var(--or);box-shadow:var(--shadow)}
.card .ico svg{width:24px;height:24px}.card .ico{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;background:var(--chip);color:var(--or);margin-bottom:18px;border:1px solid var(--or)}
.card h3{font-size:19px;margin-bottom:8px}.card p{color:var(--dim);font-size:15px}
.card .tag{display:inline-block;font-size:11px;letter-spacing:.18em;color:var(--cyt);border:1px solid var(--cyt);padding:3px 9px;margin-top:14px}
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}.split.rev{grid-template-columns:1fr 1.05fr}.split.rev .pic{order:2}
.pic{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative}
.pic img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .8s}.pic:hover img{transform:scale(1.04)}
.pic figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 18px 12px;font-size:12px;letter-spacing:.2em;color:#fff;background:linear-gradient(0deg,rgba(0,0,0,.72),transparent)}
.split h3{font-size:clamp(26px,3vw,36px);line-height:1.15;margin-bottom:16px}.split p{color:var(--soft);margin-bottom:14px}
ul.ticks{list-style:none;margin:18px 0}ul.ticks li{padding:8px 0 8px 32px;position:relative;color:var(--soft);border-bottom:1px solid var(--line)}
ul.ticks li::before{content:"✔";position:absolute;left:0;color:var(--or);font-size:14px;top:9px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery a{display:block;border-radius:12px;overflow:hidden;border:1px solid var(--line);position:relative;box-shadow:var(--shadow)}.gallery img{aspect-ratio:16/9;object-fit:cover;width:100%;transition:.5s}.gallery a:hover img{transform:scale(1.07);filter:brightness(1.08)}
.gallery a:first-child{grid-column:span 2;grid-row:span 2}
.band{background:linear-gradient(100deg,var(--bg2),var(--panel2));border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:46px 0}
.band .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}.band b{font-size:40px;font-weight:800;color:var(--or);display:block}.band span{font-size:12px;letter-spacing:.22em;color:var(--dim)}
.timeline{position:relative;margin-left:12px;border-left:2px solid var(--line);padding-left:34px}
.tl{position:relative;margin-bottom:34px}.tl::before{content:"";position:absolute;left:-43px;top:6px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:3px solid var(--or)}
.tl.done::before{background:var(--or)}.tl h4{font-size:19px}.tl .when{font-size:12px;letter-spacing:.24em;color:var(--ort);margin-bottom:4px}.tl p{color:var(--dim);margin-top:6px}
.tl ul{margin:10px 0 0 18px;color:var(--soft);font-size:15px}
table.t{width:100%;border-collapse:collapse;font-size:15px}table.t th,table.t td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:left}table.t th{font-size:12px;letter-spacing:.2em;color:var(--dim);font-weight:600}table.t td:first-child{font-weight:600}
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}
.ok{color:var(--ok)}.warn{color:var(--ort)}
.team{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.member{text-align:center}
.avatar{width:96px;height:96px;margin:0 auto 14px;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--panel2),var(--bg2));border:2px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:30px;color:var(--or)}
.todo{background:var(--todo-bg);outline:1px dashed #e0a000;padding:0 5px;border-radius:3px;color:var(--todo-fg)}
.note{border-left:3px solid var(--or);background:var(--chip);padding:16px 20px;border-radius:0 10px 10px 0;color:var(--soft);font-size:15px;margin:20px 0}
form.contact{display:grid;gap:14px}form.contact input,form.contact textarea,form.contact select{width:100%;background:var(--panel);border:1px solid var(--line);color:var(--txt);padding:14px 16px;border-radius:10px;font:inherit}
form.contact label{font-size:12px;letter-spacing:.16em;color:var(--dim)}
.cta-sec{background:radial-gradient(ellipse at 50% 0,var(--chip),transparent 60%),var(--bg2);text-align:center}
.cta-sec h2{font-size:clamp(30px,4.5vw,54px);margin-bottom:14px}.cta-sec p{color:var(--dim);max-width:640px;margin:0 auto 30px;font-size:18px}
.page-h{padding:150px 0 70px;background:linear-gradient(180deg,var(--bg2),var(--bg));border-bottom:1px solid var(--line);position:relative;isolation:isolate}
.page-h .bg{position:absolute;inset:0;z-index:-1;background-size:cover;background-position:center;opacity:.2;-webkit-mask-image:linear-gradient(0deg,transparent,#000);mask-image:linear-gradient(0deg,transparent,#000)}
.page-h h1{font-size:clamp(34px,5vw,64px);font-weight:800;line-height:1.05}.page-h p{color:var(--soft);max-width:680px;margin-top:14px;font-size:19px}
.prose{max-width:820px}.prose h2{font-size:28px;margin:44px 0 12px}.prose h3{font-size:20px;margin:26px 0 8px}.prose p,.prose li{color:var(--soft);margin-bottom:12px}.prose ul{margin:0 0 16px 22px}
footer{background:var(--foot);border-top:1px solid var(--line);padding:70px 0 30px;font-size:14px;color:var(--dim)}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}footer h5{color:var(--txt);font-size:12px;letter-spacing:.24em;margin-bottom:16px}
footer a{display:block;padding:4px 0}footer a:hover{color:var(--ort)}footer .bot{margin-top:46px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12px}
.legalnote{font-size:12px;color:var(--dim);max-width:560px;margin-top:14px}
#lb{position:fixed;inset:0;background:rgba(2,4,8,.94);display:none;align-items:center;justify-content:center;z-index:300;padding:30px;cursor:zoom-out}#lb.on{display:flex}#lb img{max-height:92vh;border-radius:10px;box-shadow:0 30px 100px #000}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s,transform .8s}.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.reveal{opacity:1;transform:none}html{scroll-behavior:auto}}
@media (max-width:960px){.g3,.g4,.team{grid-template-columns:repeat(2,1fr)}.split,.split.rev{grid-template-columns:1fr;gap:30px}.split.rev .pic{order:0}.gallery{grid-template-columns:repeat(2,1fr)}.gallery a:first-child{grid-column:span 2;grid-row:auto}.band .wrap{grid-template-columns:repeat(2,1fr)}footer .cols{grid-template-columns:1fr 1fr}
 .burger{display:block}nav.menu{position:fixed;inset:72px 0 auto 0;background:var(--bg);flex-direction:column;align-items:stretch;padding:14px 24px 24px;gap:2px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:.35s}nav.menu.open{transform:none}nav.menu a,nav.menu button.th{padding:14px 10px;text-align:left}nav.menu a.cta,nav.menu a.lang,nav.menu button.th{margin:6px 0 0;text-align:center}}
@media (max-width:600px){.g2,.g3,.g4,.team,.gallery{grid-template-columns:1fr}.gallery a:first-child{grid-column:auto}section{padding:76px 0}.hero{padding-top:100px}.hero .stats{gap:24px}}