:root{--bg:#070b16;--bg2:#0c1222;--card:#111a2e;--line:#ffffff1a;--ink:#eef2fb;--muted:#9aa6c2;--a:#4f8cff;--b:#8b5cf6;--c:#22d3ee}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,h3,.tag,.steps span,.facts strong{font-family:"Space Grotesk",Inter,sans-serif}
a{color:inherit}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;color:#000;padding:8px 12px;z-index:99}
.nav{position:fixed;inset:12px 4% auto;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:10px 14px 10px 20px;border:1px solid var(--line);border-radius:999px;background:#0a1020b3;backdrop-filter:blur(14px)}
.brand img{height:34px;display:block}
.nav nav{display:flex;align-items:center;gap:6px}
.nav nav a{padding:8px 14px;border-radius:999px;text-decoration:none;color:var(--muted);font-size:.95rem;font-weight:500}
.nav nav a:hover{color:#fff}
.nav nav a.pill{background:linear-gradient(135deg,var(--a),var(--b));color:#fff}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer}
.burger span{display:block;width:22px;height:2px;margin:6px auto;background:#fff}
.hero{position:relative;overflow:hidden;padding:190px 6% 90px;text-align:center}
.glow{position:absolute;border-radius:50%;filter:blur(110px);opacity:.45;z-index:0}
.g1{width:480px;height:480px;background:var(--a);top:-120px;left:8%}
.g2{width:420px;height:420px;background:var(--b);top:40px;right:6%}
.hero>*:not(.glow){position:relative;z-index:1}
.eyebrow{margin:0 0 14px;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;color:var(--c);font-weight:600}
h1{margin:0 auto;max-width:900px;font-size:clamp(2.3rem,6vw,4.6rem);line-height:1.05;letter-spacing:-.03em}
h1 em{font-style:normal;background:linear-gradient(120deg,var(--a),var(--c));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{max-width:640px;margin:22px auto 0;color:var(--muted);font-size:1.15rem}
.cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:34px}
.btn{display:inline-block;padding:14px 28px;border:0;border-radius:999px;background:linear-gradient(135deg,var(--a),var(--b));color:#fff;font:600 1rem Inter,sans-serif;text-decoration:none;cursor:pointer;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px #4f8cff55}
.btn.ghost{background:transparent;border:1px solid var(--line)}
.btn:disabled{opacity:.6}
.facts{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 44px;margin:64px 0 0;padding:0;list-style:none;color:var(--muted);font-size:.95rem}
.facts strong{display:block;font-size:2.2rem;color:#fff;line-height:1.1}
.section{padding:100px 6%}
.section.alt{background:var(--bg2)}
.sec-head{max-width:820px;margin:0 auto 50px;text-align:center}
h2{margin:0;font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.15;letter-spacing:-.02em}
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:1100px;margin:auto}
.card{padding:30px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(160deg,var(--card),#0b1325);transition:transform .25s,border-color .25s}
.card:hover{transform:translateY(-4px);border-color:#4f8cff66}
.card.big{grid-column:span 2;grid-row:span 2;background:radial-gradient(circle at 80% 0,#4f8cff33,transparent 55%),linear-gradient(160deg,var(--card),#0b1325)}
.card.wide{grid-column:span 3}
.card h3{margin:14px 0 10px;font-size:1.4rem;line-height:1.25}
.card p{margin:0 0 10px;color:var(--muted)}
.card .muted{font-size:.92rem;color:var(--c)}
.tag{display:inline-block;padding:4px 12px;border-radius:999px;background:#4f8cff22;color:#8fb4ff;font-size:.8rem;font-weight:500}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;max-width:1100px;margin:auto;padding:0;list-style:none}
.steps li{padding:26px;border-left:2px solid var(--line)}
.steps span{font-size:2.4rem;font-weight:700;background:linear-gradient(135deg,var(--a),var(--c));-webkit-background-clip:text;background-clip:text;color:transparent}
.steps h3{margin:6px 0;font-size:1.2rem}.steps p{margin:0;color:var(--muted);font-size:.97rem}
.logos{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;max-width:1000px;margin:auto}
.logos img{box-sizing:content-box;width:120px;height:40px;padding:14px 16px;object-fit:contain;background:#fff;border-radius:14px}
.logos img.on-dark{background:#ffffff0d;border:1px solid var(--line)}
.faq{max-width:780px;margin:auto;display:grid;gap:12px}
details{border:1px solid var(--line);border-radius:16px;background:var(--card);padding:4px 22px}
summary{padding:16px 0;cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::after{content:"+";color:var(--c);font-size:1.4rem;line-height:1}
details[open] summary::after{content:"–"}
details p{margin:0 0 18px;color:var(--muted)}
.contact{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;max-width:1100px;margin:auto}
.contact .lead{margin-left:0}
.infos{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:14px}
.infos span{display:block;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.infos a{text-decoration:none;color:#8fb4ff}
form{display:grid;gap:14px;padding:30px;border:1px solid var(--line);border-radius:24px;background:var(--card)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:grid;gap:6px;font-size:.88rem;color:var(--muted)}
input,select,textarea{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:#0a1020;color:var(--ink);font:inherit}
input:focus,select:focus,textarea:focus{outline:2px solid var(--a);border-color:transparent}
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.msg{margin:0;min-height:1.4em;font-size:.95rem}.msg.success{color:#5fd38d}.msg.error{color:#ff7b6b}
#map{height:400px;max-width:1100px;margin:60px auto 0;border-radius:24px;overflow:hidden;border:1px solid var(--line)}
#map .leaflet-tile-pane{filter:grayscale(1) invert(1) contrast(.9) brightness(.9)}
footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:30px 6%;border-top:1px solid var(--line);color:var(--muted);font-size:.92rem}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}
@media(max-width:860px){
 .burger{display:block}
 .nav nav{position:absolute;top:64px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;padding:12px;border:1px solid var(--line);border-radius:24px;background:#0a1020f2}
 .nav nav.open{display:flex}
 .bento,.steps,.contact{grid-template-columns:1fr}
 .card.big,.card.wide{grid-column:auto;grid-row:auto}
 .row{grid-template-columns:1fr}
 .hero{padding-top:150px}.section{padding:70px 6%}
}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0;padding:0;list-style:none}
.chips li{padding:7px 14px;border:1px solid var(--line);border-radius:999px;font-size:.9rem;color:var(--ink);background:#ffffff08}
.logos img.wide{width:190px}

.check{display:flex;align-items:center;gap:10px;font-size:.95rem}.check input{width:auto}
[hidden]{display:none!important}
.logos a{display:block;line-height:0;border-radius:14px;transition:transform .2s,opacity .2s}.logos a:hover{transform:translateY(-2px);opacity:.9}

/* GIF à fond blanc : on inverse (blanc -> noir, teintes conservées) puis "screen" rend le noir transparent sur le fond sombre */
.cube{display:block;width:min(100%,300px);height:auto;margin:10px auto 0;filter:invert(1) hue-rotate(180deg);mix-blend-mode:screen;pointer-events:none}