:root{
  --brand:#1d4ed8; --brand-2:#0ea5e9; --accent:#14b8a6; --brand-dark:#1e3a8a;
  --ink:#0b1220; --ink-2:#111b30; --ink-3:#1c2a45;
  --text:#1a2233; --muted:#5b6475; --line:#e3e8f1; --soft:#f3f6fb; --white:#fff;
  --radius:16px; --max:1200px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;color:var(--ink)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:12px;font-weight:600;font-size:.95rem;border:0;cursor:pointer;transition:.2s}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(29,78,216,.25)}
.btn-main:hover{background:var(--brand-dark)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.18)}
.ico{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
section{padding:96px 0}
.head{max-width:740px;margin-bottom:48px}
.head h2{font-size:clamp(1.9rem,3.6vw,2.8rem);margin:10px 0 14px}
.head p{color:var(--muted);font-size:1.06rem}
.soft{background:var(--soft)}

/* En-tete */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.logo{font-weight:800;font-size:1.32rem;letter-spacing:-.035em;color:var(--ink);display:flex;align-items:center;gap:10px}
.logo-mark{width:36px;height:36px;flex:none;filter:drop-shadow(0 6px 12px rgba(29,78,216,.28))}
.logo b{font-weight:800;background:linear-gradient(90deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
footer .logo b{background:linear-gradient(90deg,#60a5fa,#5eead4);-webkit-background-clip:text;background-clip:text}
.nav>ul{display:flex;align-items:center;gap:26px;list-style:none}
.nav>ul>li>a{font-size:.93rem;font-weight:500;color:var(--text);white-space:nowrap}
.nav>ul>li>a:hover{color:var(--brand)}
.nav-right{display:flex;align-items:center;gap:10px}
.lang{appearance:none;-webkit-appearance:none;border:1px solid var(--line);background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235b6475' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 10px center/12px;font:600 .85rem var(--font);color:var(--text);padding:8px 28px 8px 12px;border-radius:10px;cursor:pointer}
.nav .btn{padding:10px 18px;white-space:nowrap}
.burger{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer;color:var(--ink)}
.dd{position:relative;display:flex;align-items:center;gap:3px;padding-block:24px}
.dd-toggle{background:none;border:0;cursor:pointer;color:var(--muted);font-size:.75rem;padding:4px}
.dd-menu{display:none;position:absolute;top:100%;left:-24px;width:min(760px,92vw);background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 24px 60px rgba(11,18,32,.14);padding:18px;grid-template-columns:repeat(3,1fr);gap:4px 18px;list-style:none}
.dd:hover .dd-menu,.dd:focus-within .dd-menu,.dd.open .dd-menu{display:grid}
.dd-menu a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;font-size:.9rem}
.dd-menu a:hover{background:var(--soft);color:var(--brand)}
.dd-menu .ico{width:20px;height:20px;color:var(--brand);flex:none}

/* Hero */
.hero{position:relative;background:radial-gradient(900px 500px at 85% 20%,rgba(14,165,233,.35),transparent 60%),radial-gradient(700px 500px at 10% 90%,rgba(20,184,166,.22),transparent 60%),linear-gradient(160deg,#0b1220 0%,#10204a 100%);color:#fff;overflow:hidden;padding:96px 0 150px}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.hero .eyebrow{color:#7dd3fc}
.hero h1{color:#fff;font-size:clamp(2.3rem,5vw,3.9rem);margin:14px 0 20px}
.hero h1 span{background:linear-gradient(90deg,#38bdf8,#2dd4bf);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:1.12rem;color:#cbd5e1;max-width:620px}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chips span{display:inline-flex;align-items:center;gap:8px;font-size:.88rem;color:#e2e8f0;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);padding:7px 14px;border-radius:999px}
.chips span::before{content:"";width:7px;height:7px;border-radius:50%;background:#2dd4bf}
.hero-art{width:100%;max-width:460px;justify-self:end}

/* Piliers */
.pillars{margin-top:-90px;position:relative;z-index:2;padding:0}
.pillars .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pillar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 18px 40px rgba(11,18,32,.08)}
.pillar .badge{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;margin-bottom:16px}
.pillar h3{font-size:1.2rem;margin-bottom:6px}
.pillar p{color:var(--muted);font-size:.93rem}

/* Solutions */
.cat{margin-top:40px}
.cat:first-of-type{margin-top:0}
.cat h3.cat-title{font-size:1.05rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:16px;display:flex;align-items:center;gap:12px}
.cat h3.cat-title::after{content:"";flex:1;height:1px;background:var(--line)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:transform .2s,box-shadow .2s,border-color .2s}
a.card:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(11,18,32,.09);border-color:#c7d4ee}
.card .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:#e8efff;color:var(--brand)}
.card h3{font-size:1.12rem}
.card p{color:var(--muted);font-size:.93rem;flex:1}
.card .more{font-weight:600;font-size:.88rem;color:var(--brand)}

/* Pourquoi / methode */
.dark{background:var(--ink);color:#fff}
.dark h2,.dark h3{color:#fff}
.dark .head p{color:#94a3b8}
.dark .eyebrow{color:#7dd3fc}
.dark .card{background:var(--ink-2);border-color:var(--ink-3)}
.dark .card p{color:#94a3b8}
.dark .card .ic{background:rgba(56,189,248,.12);color:#38bdf8}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{position:relative;padding:26px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
.step::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;margin-bottom:14px}
.step h3{font-size:1.1rem;margin-bottom:6px}
.step p{color:var(--muted);font-size:.93rem}
.aud{display:flex;flex-wrap:wrap;gap:12px}
.aud span{background:#fff;border:1px solid var(--line);padding:12px 18px;border-radius:12px;font-weight:600;font-size:.95rem}

/* FAQ */
.faq{display:grid;gap:12px;max-width:860px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.3rem;color:var(--brand);line-height:1}
.faq details[open] summary::after{content:"\2212"}
.faq details p{margin-top:12px;color:var(--muted)}

/* Bandeau CTA */
.band{background:linear-gradient(120deg,var(--brand-dark),var(--brand) 55%,var(--brand-2));color:#fff;padding:72px 0;text-align:center}
.band h2{color:#fff;font-size:clamp(1.8rem,3.6vw,2.6rem);margin-bottom:12px}
.band p{color:#dbeafe;max-width:620px;margin:0 auto 26px}
.band .btn{background:#fff;color:var(--brand-dark)}

/* Contact & formulaire */
.contact{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
.contact-info{display:grid;gap:14px}
.contact-info .card{padding:22px}
.contact-info a{color:var(--brand);font-weight:600}
form{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;display:grid;gap:22px;box-shadow:0 18px 40px rgba(11,18,32,.06)}
fieldset{border:0;display:grid;gap:14px}
legend{font-weight:700;color:var(--ink);font-size:1.05rem;margin-bottom:6px;display:flex;align-items:center;gap:10px}
legend::before{content:"";width:6px;height:20px;border-radius:3px;background:linear-gradient(var(--brand),var(--brand-2))}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
label{display:grid;gap:6px;font-size:.84rem;font-weight:600;color:var(--ink)}
label.req>span::after{content:" *";color:#dc2626}
input,select,textarea{font:inherit;font-weight:400;font-size:.95rem;padding:11px 13px;border:1px solid #cfd7e6;border-radius:10px;background:#fff;color:var(--text);width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);border-color:transparent}
textarea{min-height:130px;resize:vertical}
.needs{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.needs label{display:flex;align-items:center;gap:10px;font-weight:500;font-size:.88rem;border:1px solid var(--line);border-radius:10px;padding:9px 12px;cursor:pointer}
.needs label:has(input:checked){border-color:var(--brand);background:#eef3ff}
.needs input,.consent input{width:18px;height:18px;flex:none;accent-color:var(--brand)}
.needs-title>span::after{content:" *";color:#dc2626}
.consent{display:flex;gap:12px;align-items:flex-start;font-weight:500;font-size:.88rem;color:var(--muted)}
.consent a{color:var(--brand);text-decoration:underline}
.req-note{font-size:.85rem;color:var(--muted)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{font-size:.95rem;min-height:1.2em}
.form-status.ok{color:#047857;font-weight:600}
.form-status.err{color:#dc2626;font-weight:600}
form button:disabled{opacity:.6;cursor:wait}

/* Pages solutions */
.page-hero{background:radial-gradient(700px 400px at 90% 0%,rgba(14,165,233,.3),transparent 60%),linear-gradient(160deg,#0b1220,#10204a);color:#fff;padding:70px 0 80px}
.page-hero .wrap{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center}
.page-hero .big-ic{width:92px;height:92px;border-radius:24px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 20px 40px rgba(14,165,233,.3)}
.page-hero .big-ic .ico{width:46px;height:46px}
.page-hero h1{color:#fff;font-size:clamp(2rem,4.4vw,3.2rem);margin:6px 0 12px}
.page-hero .lead{color:#cbd5e1;font-size:1.08rem;max-width:760px;margin-bottom:22px}
.crumb{font-size:.85rem;color:#94a3b8}
.crumb a:hover{color:#fff}
.svc{display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:start}
.svc .intro{font-size:1.08rem;color:#334155;margin:12px 0 26px}
.checks{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.checks li{position:relative;padding-left:30px;font-size:.96rem}
.checks li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:50%;background:var(--brand) 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 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat}
.aside{position:sticky;top:96px;display:grid;gap:16px}
.aside .card{background:var(--soft)}
.aside h3{font-size:1.05rem}
.prose{max-width:780px;font-size:1.04rem;line-height:1.75}
.prose h2{font-size:1.4rem;margin:30px 0 10px}
.prose p{margin-bottom:14px;color:#334155}

footer{background:var(--ink);color:#94a3b8;padding:52px 0;font-size:.9rem}
footer .wrap{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:30px}
footer .logo{color:#fff}
footer h4{color:#fff;font-size:.95rem;margin-bottom:10px}
footer ul{list-style:none;display:grid;gap:6px}
footer a:hover{color:#fff}
.legal{grid-column:1/-1;border-top:1px solid var(--ink-3);padding-top:18px;font-size:.82rem}

/* Photos */
.card .ph{position:relative;margin:-24px -24px 14px;height:170px;border-radius:15px 15px 0 0;overflow:hidden;background:var(--soft)}
.card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
a.card:hover .ph img{transform:scale(1.05)}
.card .ph .ic{position:absolute;left:16px;bottom:-1px;transform:translateY(50%);box-shadow:0 8px 18px rgba(11,18,32,.15);background:#fff}
.card .ph + h3{margin-top:14px}
.page-hero.photo{background-size:cover;background-position:center}
.svc-photo{width:100%;height:240px;object-fit:cover;border-radius:16px}
.aud-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.aud-card{position:relative;height:210px;border-radius:16px;overflow:hidden;color:#fff}
.aud-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.aud-card:hover img{transform:scale(1.05)}
.aud-card::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(11,18,32,.85),rgba(11,18,32,.05) 60%)}
.aud-card span{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;font-weight:700;font-size:1.05rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.split img{width:100%;height:100%;max-height:420px;object-fit:cover;border-radius:20px}

/* Blog */
.post small{font-size:.76rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.post small b{color:var(--brand)}
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filters a{padding:8px 16px;border-radius:999px;border:1px solid var(--line);font-size:.9rem;font-weight:500;background:#fff}
.filters a:hover{border-color:var(--brand);color:var(--brand)}
.filters a.on{background:var(--brand);border-color:var(--brand);color:#fff}
.more-link{margin-top:30px;text-align:center}
.article{max-width:800px}
.article-photo{width:100%;max-height:420px;object-fit:cover;border-radius:20px;margin-bottom:28px}
.blog-note{display:inline-block;background:var(--soft);border-radius:8px;padding:8px 14px;font-size:.88rem;color:var(--muted);margin-bottom:22px}
html[lang=fr] .blog-note{display:none}
.prose ul,.prose ol{margin:0 0 16px;padding-left:24px}
.prose li{margin-bottom:6px;color:#334155}
.prose h3{font-size:1.15rem;margin:22px 0 8px}
.prose a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.back{margin-top:30px;font-weight:600}
.back a{color:var(--brand)}
.faq-group{margin-top:44px}
.faq-group:first-child{margin-top:0}
.faq-group h2{font-size:1.3rem;margin-bottom:14px;display:flex;align-items:center;gap:12px}
.faq-group h2 a{font-size:.85rem;font-weight:600;color:var(--brand)}

.rv{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

@media (max-width:1080px){
  .nav>ul,.nav .btn{display:none}
  .burger{display:block}
  .nav.open>ul{display:flex;flex-direction:column;align-items:flex-start;position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:18px 24px;gap:12px;max-height:calc(100vh - 72px);overflow:auto}
  .dd{display:block;padding:0}
  .dd-toggle{display:none}
  .nav.open .dd-menu{display:grid;position:static;width:auto;box-shadow:none;border:0;padding:8px 0 0;grid-template-columns:1fr}
  .hero .wrap{grid-template-columns:1fr}
  .hero-art{display:none}
  .pillars .wrap,.steps{grid-template-columns:1fr 1fr}
  .grid{grid-template-columns:1fr 1fr}
  .contact,.svc,.split{grid-template-columns:1fr}
  .aud-grid{grid-template-columns:1fr 1fr}
  .aside{position:static}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  section{padding:68px 0}
  .hero{padding:64px 0 120px}
  .pillars .wrap,.steps,.grid,.row,.row3,.needs,.checks,.aud-grid{grid-template-columns:1fr}
  .page-hero .wrap{grid-template-columns:1fr}
  .page-hero .big-ic{width:68px;height:68px}
  form{padding:20px}
  footer .wrap{grid-template-columns:1fr}
  .dd-menu{grid-template-columns:1fr}
}